root / target-i386 / op_helper.c @ dc1ded53
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1 | eaa728ee | bellard | /*
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2 | eaa728ee | bellard | * i386 helpers
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3 | eaa728ee | bellard | *
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4 | eaa728ee | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | eaa728ee | bellard | *
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6 | eaa728ee | bellard | * This library is free software; you can redistribute it and/or
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7 | eaa728ee | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | eaa728ee | bellard | * License as published by the Free Software Foundation; either
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9 | eaa728ee | bellard | * version 2 of the License, or (at your option) any later version.
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10 | eaa728ee | bellard | *
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11 | eaa728ee | bellard | * This library is distributed in the hope that it will be useful,
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12 | eaa728ee | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | eaa728ee | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | eaa728ee | bellard | * Lesser General Public License for more details.
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15 | eaa728ee | bellard | *
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16 | eaa728ee | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | eaa728ee | bellard | * License along with this library; if not, write to the Free Software
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18 | fad6cb1a | aurel32 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
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19 | eaa728ee | bellard | */
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20 | eaa728ee | bellard | #define CPU_NO_GLOBAL_REGS
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21 | eaa728ee | bellard | #include "exec.h" |
22 | d9957a8b | blueswir1 | #include "exec-all.h" |
23 | eaa728ee | bellard | #include "host-utils.h" |
24 | eaa728ee | bellard | |
25 | eaa728ee | bellard | //#define DEBUG_PCALL
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26 | eaa728ee | bellard | |
27 | d12d51d5 | aliguori | |
28 | d12d51d5 | aliguori | #ifdef DEBUG_PCALL
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29 | 93fcfe39 | aliguori | # define LOG_PCALL(...) qemu_log_mask(CPU_LOG_PCALL, ## __VA_ARGS__) |
30 | 93fcfe39 | aliguori | # define LOG_PCALL_STATE(env) \
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31 | 93fcfe39 | aliguori | log_cpu_state_mask(CPU_LOG_PCALL, (env), X86_DUMP_CCOP) |
32 | d12d51d5 | aliguori | #else
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33 | d12d51d5 | aliguori | # define LOG_PCALL(...) do { } while (0) |
34 | d12d51d5 | aliguori | # define LOG_PCALL_STATE(env) do { } while (0) |
35 | d12d51d5 | aliguori | #endif
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36 | d12d51d5 | aliguori | |
37 | d12d51d5 | aliguori | |
38 | eaa728ee | bellard | #if 0
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39 | eaa728ee | bellard | #define raise_exception_err(a, b)\
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40 | eaa728ee | bellard | do {\
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41 | 93fcfe39 | aliguori | qemu_log("raise_exception line=%d\n", __LINE__);\
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42 | eaa728ee | bellard | (raise_exception_err)(a, b);\
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43 | eaa728ee | bellard | } while (0)
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44 | eaa728ee | bellard | #endif
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45 | eaa728ee | bellard | |
46 | d9957a8b | blueswir1 | static const uint8_t parity_table[256] = { |
47 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
48 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
49 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
50 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
51 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
52 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
53 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
54 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
55 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
56 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
57 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
58 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
59 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
60 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
61 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
62 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
63 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
64 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
65 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
66 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
67 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
68 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
69 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
70 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
71 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
72 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
73 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
74 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
75 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
76 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
77 | eaa728ee | bellard | CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0, |
78 | eaa728ee | bellard | 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P, |
79 | eaa728ee | bellard | }; |
80 | eaa728ee | bellard | |
81 | eaa728ee | bellard | /* modulo 17 table */
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82 | d9957a8b | blueswir1 | static const uint8_t rclw_table[32] = { |
83 | eaa728ee | bellard | 0, 1, 2, 3, 4, 5, 6, 7, |
84 | eaa728ee | bellard | 8, 9,10,11,12,13,14,15, |
85 | eaa728ee | bellard | 16, 0, 1, 2, 3, 4, 5, 6, |
86 | eaa728ee | bellard | 7, 8, 9,10,11,12,13,14, |
87 | eaa728ee | bellard | }; |
88 | eaa728ee | bellard | |
89 | eaa728ee | bellard | /* modulo 9 table */
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90 | d9957a8b | blueswir1 | static const uint8_t rclb_table[32] = { |
91 | eaa728ee | bellard | 0, 1, 2, 3, 4, 5, 6, 7, |
92 | eaa728ee | bellard | 8, 0, 1, 2, 3, 4, 5, 6, |
93 | eaa728ee | bellard | 7, 8, 0, 1, 2, 3, 4, 5, |
94 | eaa728ee | bellard | 6, 7, 8, 0, 1, 2, 3, 4, |
95 | eaa728ee | bellard | }; |
96 | eaa728ee | bellard | |
97 | d9957a8b | blueswir1 | static const CPU86_LDouble f15rk[7] = |
98 | eaa728ee | bellard | { |
99 | eaa728ee | bellard | 0.00000000000000000000L, |
100 | eaa728ee | bellard | 1.00000000000000000000L, |
101 | eaa728ee | bellard | 3.14159265358979323851L, /*pi*/ |
102 | eaa728ee | bellard | 0.30102999566398119523L, /*lg2*/ |
103 | eaa728ee | bellard | 0.69314718055994530943L, /*ln2*/ |
104 | eaa728ee | bellard | 1.44269504088896340739L, /*l2e*/ |
105 | eaa728ee | bellard | 3.32192809488736234781L, /*l2t*/ |
106 | eaa728ee | bellard | }; |
107 | eaa728ee | bellard | |
108 | eaa728ee | bellard | /* broken thread support */
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109 | eaa728ee | bellard | |
110 | b1d8e52e | blueswir1 | static spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
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111 | eaa728ee | bellard | |
112 | eaa728ee | bellard | void helper_lock(void) |
113 | eaa728ee | bellard | { |
114 | eaa728ee | bellard | spin_lock(&global_cpu_lock); |
115 | eaa728ee | bellard | } |
116 | eaa728ee | bellard | |
117 | eaa728ee | bellard | void helper_unlock(void) |
118 | eaa728ee | bellard | { |
119 | eaa728ee | bellard | spin_unlock(&global_cpu_lock); |
120 | eaa728ee | bellard | } |
121 | eaa728ee | bellard | |
122 | eaa728ee | bellard | void helper_write_eflags(target_ulong t0, uint32_t update_mask)
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123 | eaa728ee | bellard | { |
124 | eaa728ee | bellard | load_eflags(t0, update_mask); |
125 | eaa728ee | bellard | } |
126 | eaa728ee | bellard | |
127 | eaa728ee | bellard | target_ulong helper_read_eflags(void)
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128 | eaa728ee | bellard | { |
129 | eaa728ee | bellard | uint32_t eflags; |
130 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
131 | eaa728ee | bellard | eflags |= (DF & DF_MASK); |
132 | eaa728ee | bellard | eflags |= env->eflags & ~(VM_MASK | RF_MASK); |
133 | eaa728ee | bellard | return eflags;
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134 | eaa728ee | bellard | } |
135 | eaa728ee | bellard | |
136 | eaa728ee | bellard | /* return non zero if error */
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137 | eaa728ee | bellard | static inline int load_segment(uint32_t *e1_ptr, uint32_t *e2_ptr, |
138 | eaa728ee | bellard | int selector)
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139 | eaa728ee | bellard | { |
140 | eaa728ee | bellard | SegmentCache *dt; |
141 | eaa728ee | bellard | int index;
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142 | eaa728ee | bellard | target_ulong ptr; |
143 | eaa728ee | bellard | |
144 | eaa728ee | bellard | if (selector & 0x4) |
145 | eaa728ee | bellard | dt = &env->ldt; |
146 | eaa728ee | bellard | else
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147 | eaa728ee | bellard | dt = &env->gdt; |
148 | eaa728ee | bellard | index = selector & ~7;
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149 | eaa728ee | bellard | if ((index + 7) > dt->limit) |
150 | eaa728ee | bellard | return -1; |
151 | eaa728ee | bellard | ptr = dt->base + index; |
152 | eaa728ee | bellard | *e1_ptr = ldl_kernel(ptr); |
153 | eaa728ee | bellard | *e2_ptr = ldl_kernel(ptr + 4);
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154 | eaa728ee | bellard | return 0; |
155 | eaa728ee | bellard | } |
156 | eaa728ee | bellard | |
157 | eaa728ee | bellard | static inline unsigned int get_seg_limit(uint32_t e1, uint32_t e2) |
158 | eaa728ee | bellard | { |
159 | eaa728ee | bellard | unsigned int limit; |
160 | eaa728ee | bellard | limit = (e1 & 0xffff) | (e2 & 0x000f0000); |
161 | eaa728ee | bellard | if (e2 & DESC_G_MASK)
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162 | eaa728ee | bellard | limit = (limit << 12) | 0xfff; |
163 | eaa728ee | bellard | return limit;
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164 | eaa728ee | bellard | } |
165 | eaa728ee | bellard | |
166 | eaa728ee | bellard | static inline uint32_t get_seg_base(uint32_t e1, uint32_t e2) |
167 | eaa728ee | bellard | { |
168 | eaa728ee | bellard | return ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000)); |
169 | eaa728ee | bellard | } |
170 | eaa728ee | bellard | |
171 | eaa728ee | bellard | static inline void load_seg_cache_raw_dt(SegmentCache *sc, uint32_t e1, uint32_t e2) |
172 | eaa728ee | bellard | { |
173 | eaa728ee | bellard | sc->base = get_seg_base(e1, e2); |
174 | eaa728ee | bellard | sc->limit = get_seg_limit(e1, e2); |
175 | eaa728ee | bellard | sc->flags = e2; |
176 | eaa728ee | bellard | } |
177 | eaa728ee | bellard | |
178 | eaa728ee | bellard | /* init the segment cache in vm86 mode. */
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179 | eaa728ee | bellard | static inline void load_seg_vm(int seg, int selector) |
180 | eaa728ee | bellard | { |
181 | eaa728ee | bellard | selector &= 0xffff;
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182 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, seg, selector, |
183 | eaa728ee | bellard | (selector << 4), 0xffff, 0); |
184 | eaa728ee | bellard | } |
185 | eaa728ee | bellard | |
186 | eaa728ee | bellard | static inline void get_ss_esp_from_tss(uint32_t *ss_ptr, |
187 | eaa728ee | bellard | uint32_t *esp_ptr, int dpl)
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188 | eaa728ee | bellard | { |
189 | eaa728ee | bellard | int type, index, shift;
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190 | eaa728ee | bellard | |
191 | eaa728ee | bellard | #if 0
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192 | eaa728ee | bellard | {
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193 | eaa728ee | bellard | int i;
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194 | eaa728ee | bellard | printf("TR: base=%p limit=%x\n", env->tr.base, env->tr.limit);
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195 | eaa728ee | bellard | for(i=0;i<env->tr.limit;i++) {
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196 | eaa728ee | bellard | printf("%02x ", env->tr.base[i]);
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197 | eaa728ee | bellard | if ((i & 7) == 7) printf("\n");
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198 | eaa728ee | bellard | }
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199 | eaa728ee | bellard | printf("\n");
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200 | eaa728ee | bellard | }
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201 | eaa728ee | bellard | #endif
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202 | eaa728ee | bellard | |
203 | eaa728ee | bellard | if (!(env->tr.flags & DESC_P_MASK))
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204 | eaa728ee | bellard | cpu_abort(env, "invalid tss");
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205 | eaa728ee | bellard | type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
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206 | eaa728ee | bellard | if ((type & 7) != 1) |
207 | eaa728ee | bellard | cpu_abort(env, "invalid tss type");
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208 | eaa728ee | bellard | shift = type >> 3;
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209 | eaa728ee | bellard | index = (dpl * 4 + 2) << shift; |
210 | eaa728ee | bellard | if (index + (4 << shift) - 1 > env->tr.limit) |
211 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
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212 | eaa728ee | bellard | if (shift == 0) { |
213 | eaa728ee | bellard | *esp_ptr = lduw_kernel(env->tr.base + index); |
214 | eaa728ee | bellard | *ss_ptr = lduw_kernel(env->tr.base + index + 2);
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215 | eaa728ee | bellard | } else {
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216 | eaa728ee | bellard | *esp_ptr = ldl_kernel(env->tr.base + index); |
217 | eaa728ee | bellard | *ss_ptr = lduw_kernel(env->tr.base + index + 4);
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218 | eaa728ee | bellard | } |
219 | eaa728ee | bellard | } |
220 | eaa728ee | bellard | |
221 | eaa728ee | bellard | /* XXX: merge with load_seg() */
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222 | eaa728ee | bellard | static void tss_load_seg(int seg_reg, int selector) |
223 | eaa728ee | bellard | { |
224 | eaa728ee | bellard | uint32_t e1, e2; |
225 | eaa728ee | bellard | int rpl, dpl, cpl;
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226 | eaa728ee | bellard | |
227 | eaa728ee | bellard | if ((selector & 0xfffc) != 0) { |
228 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
229 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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230 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK))
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231 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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232 | eaa728ee | bellard | rpl = selector & 3;
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233 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
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234 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
235 | eaa728ee | bellard | if (seg_reg == R_CS) {
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236 | eaa728ee | bellard | if (!(e2 & DESC_CS_MASK))
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237 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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238 | eaa728ee | bellard | /* XXX: is it correct ? */
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239 | eaa728ee | bellard | if (dpl != rpl)
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240 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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241 | eaa728ee | bellard | if ((e2 & DESC_C_MASK) && dpl > rpl)
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242 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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243 | eaa728ee | bellard | } else if (seg_reg == R_SS) { |
244 | eaa728ee | bellard | /* SS must be writable data */
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245 | eaa728ee | bellard | if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
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246 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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247 | eaa728ee | bellard | if (dpl != cpl || dpl != rpl)
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248 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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249 | eaa728ee | bellard | } else {
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250 | eaa728ee | bellard | /* not readable code */
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251 | eaa728ee | bellard | if ((e2 & DESC_CS_MASK) && !(e2 & DESC_R_MASK))
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252 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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253 | eaa728ee | bellard | /* if data or non conforming code, checks the rights */
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254 | eaa728ee | bellard | if (((e2 >> DESC_TYPE_SHIFT) & 0xf) < 12) { |
255 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
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256 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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257 | eaa728ee | bellard | } |
258 | eaa728ee | bellard | } |
259 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
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260 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
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261 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, seg_reg, selector, |
262 | eaa728ee | bellard | get_seg_base(e1, e2), |
263 | eaa728ee | bellard | get_seg_limit(e1, e2), |
264 | eaa728ee | bellard | e2); |
265 | eaa728ee | bellard | } else {
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266 | eaa728ee | bellard | if (seg_reg == R_SS || seg_reg == R_CS)
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267 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
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268 | eaa728ee | bellard | } |
269 | eaa728ee | bellard | } |
270 | eaa728ee | bellard | |
271 | eaa728ee | bellard | #define SWITCH_TSS_JMP 0 |
272 | eaa728ee | bellard | #define SWITCH_TSS_IRET 1 |
273 | eaa728ee | bellard | #define SWITCH_TSS_CALL 2 |
274 | eaa728ee | bellard | |
275 | eaa728ee | bellard | /* XXX: restore CPU state in registers (PowerPC case) */
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276 | eaa728ee | bellard | static void switch_tss(int tss_selector, |
277 | eaa728ee | bellard | uint32_t e1, uint32_t e2, int source,
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278 | eaa728ee | bellard | uint32_t next_eip) |
279 | eaa728ee | bellard | { |
280 | eaa728ee | bellard | int tss_limit, tss_limit_max, type, old_tss_limit_max, old_type, v1, v2, i;
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281 | eaa728ee | bellard | target_ulong tss_base; |
282 | eaa728ee | bellard | uint32_t new_regs[8], new_segs[6]; |
283 | eaa728ee | bellard | uint32_t new_eflags, new_eip, new_cr3, new_ldt, new_trap; |
284 | eaa728ee | bellard | uint32_t old_eflags, eflags_mask; |
285 | eaa728ee | bellard | SegmentCache *dt; |
286 | eaa728ee | bellard | int index;
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287 | eaa728ee | bellard | target_ulong ptr; |
288 | eaa728ee | bellard | |
289 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
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290 | d12d51d5 | aliguori | LOG_PCALL("switch_tss: sel=0x%04x type=%d src=%d\n", tss_selector, type, source);
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291 | eaa728ee | bellard | |
292 | eaa728ee | bellard | /* if task gate, we read the TSS segment and we load it */
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293 | eaa728ee | bellard | if (type == 5) { |
294 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
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295 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
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296 | eaa728ee | bellard | tss_selector = e1 >> 16;
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297 | eaa728ee | bellard | if (tss_selector & 4) |
298 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
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299 | eaa728ee | bellard | if (load_segment(&e1, &e2, tss_selector) != 0) |
300 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
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301 | eaa728ee | bellard | if (e2 & DESC_S_MASK)
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302 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
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303 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
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304 | eaa728ee | bellard | if ((type & 7) != 1) |
305 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, tss_selector & 0xfffc);
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306 | eaa728ee | bellard | } |
307 | eaa728ee | bellard | |
308 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
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309 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, tss_selector & 0xfffc);
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310 | eaa728ee | bellard | |
311 | eaa728ee | bellard | if (type & 8) |
312 | eaa728ee | bellard | tss_limit_max = 103;
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313 | eaa728ee | bellard | else
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314 | eaa728ee | bellard | tss_limit_max = 43;
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315 | eaa728ee | bellard | tss_limit = get_seg_limit(e1, e2); |
316 | eaa728ee | bellard | tss_base = get_seg_base(e1, e2); |
317 | eaa728ee | bellard | if ((tss_selector & 4) != 0 || |
318 | eaa728ee | bellard | tss_limit < tss_limit_max) |
319 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
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320 | eaa728ee | bellard | old_type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
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321 | eaa728ee | bellard | if (old_type & 8) |
322 | eaa728ee | bellard | old_tss_limit_max = 103;
|
323 | eaa728ee | bellard | else
|
324 | eaa728ee | bellard | old_tss_limit_max = 43;
|
325 | eaa728ee | bellard | |
326 | eaa728ee | bellard | /* read all the registers from the new TSS */
|
327 | eaa728ee | bellard | if (type & 8) { |
328 | eaa728ee | bellard | /* 32 bit */
|
329 | eaa728ee | bellard | new_cr3 = ldl_kernel(tss_base + 0x1c);
|
330 | eaa728ee | bellard | new_eip = ldl_kernel(tss_base + 0x20);
|
331 | eaa728ee | bellard | new_eflags = ldl_kernel(tss_base + 0x24);
|
332 | eaa728ee | bellard | for(i = 0; i < 8; i++) |
333 | eaa728ee | bellard | new_regs[i] = ldl_kernel(tss_base + (0x28 + i * 4)); |
334 | eaa728ee | bellard | for(i = 0; i < 6; i++) |
335 | eaa728ee | bellard | new_segs[i] = lduw_kernel(tss_base + (0x48 + i * 4)); |
336 | eaa728ee | bellard | new_ldt = lduw_kernel(tss_base + 0x60);
|
337 | eaa728ee | bellard | new_trap = ldl_kernel(tss_base + 0x64);
|
338 | eaa728ee | bellard | } else {
|
339 | eaa728ee | bellard | /* 16 bit */
|
340 | eaa728ee | bellard | new_cr3 = 0;
|
341 | eaa728ee | bellard | new_eip = lduw_kernel(tss_base + 0x0e);
|
342 | eaa728ee | bellard | new_eflags = lduw_kernel(tss_base + 0x10);
|
343 | eaa728ee | bellard | for(i = 0; i < 8; i++) |
344 | eaa728ee | bellard | new_regs[i] = lduw_kernel(tss_base + (0x12 + i * 2)) | 0xffff0000; |
345 | eaa728ee | bellard | for(i = 0; i < 4; i++) |
346 | eaa728ee | bellard | new_segs[i] = lduw_kernel(tss_base + (0x22 + i * 4)); |
347 | eaa728ee | bellard | new_ldt = lduw_kernel(tss_base + 0x2a);
|
348 | eaa728ee | bellard | new_segs[R_FS] = 0;
|
349 | eaa728ee | bellard | new_segs[R_GS] = 0;
|
350 | eaa728ee | bellard | new_trap = 0;
|
351 | eaa728ee | bellard | } |
352 | eaa728ee | bellard | |
353 | eaa728ee | bellard | /* NOTE: we must avoid memory exceptions during the task switch,
|
354 | eaa728ee | bellard | so we make dummy accesses before */
|
355 | eaa728ee | bellard | /* XXX: it can still fail in some cases, so a bigger hack is
|
356 | eaa728ee | bellard | necessary to valid the TLB after having done the accesses */
|
357 | eaa728ee | bellard | |
358 | eaa728ee | bellard | v1 = ldub_kernel(env->tr.base); |
359 | eaa728ee | bellard | v2 = ldub_kernel(env->tr.base + old_tss_limit_max); |
360 | eaa728ee | bellard | stb_kernel(env->tr.base, v1); |
361 | eaa728ee | bellard | stb_kernel(env->tr.base + old_tss_limit_max, v2); |
362 | eaa728ee | bellard | |
363 | eaa728ee | bellard | /* clear busy bit (it is restartable) */
|
364 | eaa728ee | bellard | if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_IRET) {
|
365 | eaa728ee | bellard | target_ulong ptr; |
366 | eaa728ee | bellard | uint32_t e2; |
367 | eaa728ee | bellard | ptr = env->gdt.base + (env->tr.selector & ~7);
|
368 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
369 | eaa728ee | bellard | e2 &= ~DESC_TSS_BUSY_MASK; |
370 | eaa728ee | bellard | stl_kernel(ptr + 4, e2);
|
371 | eaa728ee | bellard | } |
372 | eaa728ee | bellard | old_eflags = compute_eflags(); |
373 | eaa728ee | bellard | if (source == SWITCH_TSS_IRET)
|
374 | eaa728ee | bellard | old_eflags &= ~NT_MASK; |
375 | eaa728ee | bellard | |
376 | eaa728ee | bellard | /* save the current state in the old TSS */
|
377 | eaa728ee | bellard | if (type & 8) { |
378 | eaa728ee | bellard | /* 32 bit */
|
379 | eaa728ee | bellard | stl_kernel(env->tr.base + 0x20, next_eip);
|
380 | eaa728ee | bellard | stl_kernel(env->tr.base + 0x24, old_eflags);
|
381 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 0 * 4), EAX); |
382 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 1 * 4), ECX); |
383 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 2 * 4), EDX); |
384 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 3 * 4), EBX); |
385 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 4 * 4), ESP); |
386 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 5 * 4), EBP); |
387 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 6 * 4), ESI); |
388 | eaa728ee | bellard | stl_kernel(env->tr.base + (0x28 + 7 * 4), EDI); |
389 | eaa728ee | bellard | for(i = 0; i < 6; i++) |
390 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x48 + i * 4), env->segs[i].selector); |
391 | eaa728ee | bellard | } else {
|
392 | eaa728ee | bellard | /* 16 bit */
|
393 | eaa728ee | bellard | stw_kernel(env->tr.base + 0x0e, next_eip);
|
394 | eaa728ee | bellard | stw_kernel(env->tr.base + 0x10, old_eflags);
|
395 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 0 * 2), EAX); |
396 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 1 * 2), ECX); |
397 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 2 * 2), EDX); |
398 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 3 * 2), EBX); |
399 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 4 * 2), ESP); |
400 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 5 * 2), EBP); |
401 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 6 * 2), ESI); |
402 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x12 + 7 * 2), EDI); |
403 | eaa728ee | bellard | for(i = 0; i < 4; i++) |
404 | eaa728ee | bellard | stw_kernel(env->tr.base + (0x22 + i * 4), env->segs[i].selector); |
405 | eaa728ee | bellard | } |
406 | eaa728ee | bellard | |
407 | eaa728ee | bellard | /* now if an exception occurs, it will occurs in the next task
|
408 | eaa728ee | bellard | context */
|
409 | eaa728ee | bellard | |
410 | eaa728ee | bellard | if (source == SWITCH_TSS_CALL) {
|
411 | eaa728ee | bellard | stw_kernel(tss_base, env->tr.selector); |
412 | eaa728ee | bellard | new_eflags |= NT_MASK; |
413 | eaa728ee | bellard | } |
414 | eaa728ee | bellard | |
415 | eaa728ee | bellard | /* set busy bit */
|
416 | eaa728ee | bellard | if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_CALL) {
|
417 | eaa728ee | bellard | target_ulong ptr; |
418 | eaa728ee | bellard | uint32_t e2; |
419 | eaa728ee | bellard | ptr = env->gdt.base + (tss_selector & ~7);
|
420 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
421 | eaa728ee | bellard | e2 |= DESC_TSS_BUSY_MASK; |
422 | eaa728ee | bellard | stl_kernel(ptr + 4, e2);
|
423 | eaa728ee | bellard | } |
424 | eaa728ee | bellard | |
425 | eaa728ee | bellard | /* set the new CPU state */
|
426 | eaa728ee | bellard | /* from this point, any exception which occurs can give problems */
|
427 | eaa728ee | bellard | env->cr[0] |= CR0_TS_MASK;
|
428 | eaa728ee | bellard | env->hflags |= HF_TS_MASK; |
429 | eaa728ee | bellard | env->tr.selector = tss_selector; |
430 | eaa728ee | bellard | env->tr.base = tss_base; |
431 | eaa728ee | bellard | env->tr.limit = tss_limit; |
432 | eaa728ee | bellard | env->tr.flags = e2 & ~DESC_TSS_BUSY_MASK; |
433 | eaa728ee | bellard | |
434 | eaa728ee | bellard | if ((type & 8) && (env->cr[0] & CR0_PG_MASK)) { |
435 | eaa728ee | bellard | cpu_x86_update_cr3(env, new_cr3); |
436 | eaa728ee | bellard | } |
437 | eaa728ee | bellard | |
438 | eaa728ee | bellard | /* load all registers without an exception, then reload them with
|
439 | eaa728ee | bellard | possible exception */
|
440 | eaa728ee | bellard | env->eip = new_eip; |
441 | eaa728ee | bellard | eflags_mask = TF_MASK | AC_MASK | ID_MASK | |
442 | eaa728ee | bellard | IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK; |
443 | eaa728ee | bellard | if (!(type & 8)) |
444 | eaa728ee | bellard | eflags_mask &= 0xffff;
|
445 | eaa728ee | bellard | load_eflags(new_eflags, eflags_mask); |
446 | eaa728ee | bellard | /* XXX: what to do in 16 bit case ? */
|
447 | eaa728ee | bellard | EAX = new_regs[0];
|
448 | eaa728ee | bellard | ECX = new_regs[1];
|
449 | eaa728ee | bellard | EDX = new_regs[2];
|
450 | eaa728ee | bellard | EBX = new_regs[3];
|
451 | eaa728ee | bellard | ESP = new_regs[4];
|
452 | eaa728ee | bellard | EBP = new_regs[5];
|
453 | eaa728ee | bellard | ESI = new_regs[6];
|
454 | eaa728ee | bellard | EDI = new_regs[7];
|
455 | eaa728ee | bellard | if (new_eflags & VM_MASK) {
|
456 | eaa728ee | bellard | for(i = 0; i < 6; i++) |
457 | eaa728ee | bellard | load_seg_vm(i, new_segs[i]); |
458 | eaa728ee | bellard | /* in vm86, CPL is always 3 */
|
459 | eaa728ee | bellard | cpu_x86_set_cpl(env, 3);
|
460 | eaa728ee | bellard | } else {
|
461 | eaa728ee | bellard | /* CPL is set the RPL of CS */
|
462 | eaa728ee | bellard | cpu_x86_set_cpl(env, new_segs[R_CS] & 3);
|
463 | eaa728ee | bellard | /* first just selectors as the rest may trigger exceptions */
|
464 | eaa728ee | bellard | for(i = 0; i < 6; i++) |
465 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, i, new_segs[i], 0, 0, 0); |
466 | eaa728ee | bellard | } |
467 | eaa728ee | bellard | |
468 | eaa728ee | bellard | env->ldt.selector = new_ldt & ~4;
|
469 | eaa728ee | bellard | env->ldt.base = 0;
|
470 | eaa728ee | bellard | env->ldt.limit = 0;
|
471 | eaa728ee | bellard | env->ldt.flags = 0;
|
472 | eaa728ee | bellard | |
473 | eaa728ee | bellard | /* load the LDT */
|
474 | eaa728ee | bellard | if (new_ldt & 4) |
475 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
|
476 | eaa728ee | bellard | |
477 | eaa728ee | bellard | if ((new_ldt & 0xfffc) != 0) { |
478 | eaa728ee | bellard | dt = &env->gdt; |
479 | eaa728ee | bellard | index = new_ldt & ~7;
|
480 | eaa728ee | bellard | if ((index + 7) > dt->limit) |
481 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
|
482 | eaa728ee | bellard | ptr = dt->base + index; |
483 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
484 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
485 | eaa728ee | bellard | if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2) |
486 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
|
487 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
488 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
|
489 | eaa728ee | bellard | load_seg_cache_raw_dt(&env->ldt, e1, e2); |
490 | eaa728ee | bellard | } |
491 | eaa728ee | bellard | |
492 | eaa728ee | bellard | /* load the segments */
|
493 | eaa728ee | bellard | if (!(new_eflags & VM_MASK)) {
|
494 | eaa728ee | bellard | tss_load_seg(R_CS, new_segs[R_CS]); |
495 | eaa728ee | bellard | tss_load_seg(R_SS, new_segs[R_SS]); |
496 | eaa728ee | bellard | tss_load_seg(R_ES, new_segs[R_ES]); |
497 | eaa728ee | bellard | tss_load_seg(R_DS, new_segs[R_DS]); |
498 | eaa728ee | bellard | tss_load_seg(R_FS, new_segs[R_FS]); |
499 | eaa728ee | bellard | tss_load_seg(R_GS, new_segs[R_GS]); |
500 | eaa728ee | bellard | } |
501 | eaa728ee | bellard | |
502 | eaa728ee | bellard | /* check that EIP is in the CS segment limits */
|
503 | eaa728ee | bellard | if (new_eip > env->segs[R_CS].limit) {
|
504 | eaa728ee | bellard | /* XXX: different exception if CALL ? */
|
505 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
506 | eaa728ee | bellard | } |
507 | 01df040b | aliguori | |
508 | 01df040b | aliguori | #ifndef CONFIG_USER_ONLY
|
509 | 01df040b | aliguori | /* reset local breakpoints */
|
510 | 01df040b | aliguori | if (env->dr[7] & 0x55) { |
511 | 01df040b | aliguori | for (i = 0; i < 4; i++) { |
512 | 01df040b | aliguori | if (hw_breakpoint_enabled(env->dr[7], i) == 0x1) |
513 | 01df040b | aliguori | hw_breakpoint_remove(env, i); |
514 | 01df040b | aliguori | } |
515 | 01df040b | aliguori | env->dr[7] &= ~0x55; |
516 | 01df040b | aliguori | } |
517 | 01df040b | aliguori | #endif
|
518 | eaa728ee | bellard | } |
519 | eaa728ee | bellard | |
520 | eaa728ee | bellard | /* check if Port I/O is allowed in TSS */
|
521 | eaa728ee | bellard | static inline void check_io(int addr, int size) |
522 | eaa728ee | bellard | { |
523 | eaa728ee | bellard | int io_offset, val, mask;
|
524 | eaa728ee | bellard | |
525 | eaa728ee | bellard | /* TSS must be a valid 32 bit one */
|
526 | eaa728ee | bellard | if (!(env->tr.flags & DESC_P_MASK) ||
|
527 | eaa728ee | bellard | ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 || |
528 | eaa728ee | bellard | env->tr.limit < 103)
|
529 | eaa728ee | bellard | goto fail;
|
530 | eaa728ee | bellard | io_offset = lduw_kernel(env->tr.base + 0x66);
|
531 | eaa728ee | bellard | io_offset += (addr >> 3);
|
532 | eaa728ee | bellard | /* Note: the check needs two bytes */
|
533 | eaa728ee | bellard | if ((io_offset + 1) > env->tr.limit) |
534 | eaa728ee | bellard | goto fail;
|
535 | eaa728ee | bellard | val = lduw_kernel(env->tr.base + io_offset); |
536 | eaa728ee | bellard | val >>= (addr & 7);
|
537 | eaa728ee | bellard | mask = (1 << size) - 1; |
538 | eaa728ee | bellard | /* all bits must be zero to allow the I/O */
|
539 | eaa728ee | bellard | if ((val & mask) != 0) { |
540 | eaa728ee | bellard | fail:
|
541 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
542 | eaa728ee | bellard | } |
543 | eaa728ee | bellard | } |
544 | eaa728ee | bellard | |
545 | eaa728ee | bellard | void helper_check_iob(uint32_t t0)
|
546 | eaa728ee | bellard | { |
547 | eaa728ee | bellard | check_io(t0, 1);
|
548 | eaa728ee | bellard | } |
549 | eaa728ee | bellard | |
550 | eaa728ee | bellard | void helper_check_iow(uint32_t t0)
|
551 | eaa728ee | bellard | { |
552 | eaa728ee | bellard | check_io(t0, 2);
|
553 | eaa728ee | bellard | } |
554 | eaa728ee | bellard | |
555 | eaa728ee | bellard | void helper_check_iol(uint32_t t0)
|
556 | eaa728ee | bellard | { |
557 | eaa728ee | bellard | check_io(t0, 4);
|
558 | eaa728ee | bellard | } |
559 | eaa728ee | bellard | |
560 | eaa728ee | bellard | void helper_outb(uint32_t port, uint32_t data)
|
561 | eaa728ee | bellard | { |
562 | eaa728ee | bellard | cpu_outb(env, port, data & 0xff);
|
563 | eaa728ee | bellard | } |
564 | eaa728ee | bellard | |
565 | eaa728ee | bellard | target_ulong helper_inb(uint32_t port) |
566 | eaa728ee | bellard | { |
567 | eaa728ee | bellard | return cpu_inb(env, port);
|
568 | eaa728ee | bellard | } |
569 | eaa728ee | bellard | |
570 | eaa728ee | bellard | void helper_outw(uint32_t port, uint32_t data)
|
571 | eaa728ee | bellard | { |
572 | eaa728ee | bellard | cpu_outw(env, port, data & 0xffff);
|
573 | eaa728ee | bellard | } |
574 | eaa728ee | bellard | |
575 | eaa728ee | bellard | target_ulong helper_inw(uint32_t port) |
576 | eaa728ee | bellard | { |
577 | eaa728ee | bellard | return cpu_inw(env, port);
|
578 | eaa728ee | bellard | } |
579 | eaa728ee | bellard | |
580 | eaa728ee | bellard | void helper_outl(uint32_t port, uint32_t data)
|
581 | eaa728ee | bellard | { |
582 | eaa728ee | bellard | cpu_outl(env, port, data); |
583 | eaa728ee | bellard | } |
584 | eaa728ee | bellard | |
585 | eaa728ee | bellard | target_ulong helper_inl(uint32_t port) |
586 | eaa728ee | bellard | { |
587 | eaa728ee | bellard | return cpu_inl(env, port);
|
588 | eaa728ee | bellard | } |
589 | eaa728ee | bellard | |
590 | eaa728ee | bellard | static inline unsigned int get_sp_mask(unsigned int e2) |
591 | eaa728ee | bellard | { |
592 | eaa728ee | bellard | if (e2 & DESC_B_MASK)
|
593 | eaa728ee | bellard | return 0xffffffff; |
594 | eaa728ee | bellard | else
|
595 | eaa728ee | bellard | return 0xffff; |
596 | eaa728ee | bellard | } |
597 | eaa728ee | bellard | |
598 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
599 | eaa728ee | bellard | #define SET_ESP(val, sp_mask)\
|
600 | eaa728ee | bellard | do {\
|
601 | eaa728ee | bellard | if ((sp_mask) == 0xffff)\ |
602 | eaa728ee | bellard | ESP = (ESP & ~0xffff) | ((val) & 0xffff);\ |
603 | eaa728ee | bellard | else if ((sp_mask) == 0xffffffffLL)\ |
604 | eaa728ee | bellard | ESP = (uint32_t)(val);\ |
605 | eaa728ee | bellard | else\
|
606 | eaa728ee | bellard | ESP = (val);\ |
607 | eaa728ee | bellard | } while (0) |
608 | eaa728ee | bellard | #else
|
609 | eaa728ee | bellard | #define SET_ESP(val, sp_mask) ESP = (ESP & ~(sp_mask)) | ((val) & (sp_mask))
|
610 | eaa728ee | bellard | #endif
|
611 | eaa728ee | bellard | |
612 | c0a04f0e | aliguori | /* in 64-bit machines, this can overflow. So this segment addition macro
|
613 | c0a04f0e | aliguori | * can be used to trim the value to 32-bit whenever needed */
|
614 | c0a04f0e | aliguori | #define SEG_ADDL(ssp, sp, sp_mask) ((uint32_t)((ssp) + (sp & (sp_mask))))
|
615 | c0a04f0e | aliguori | |
616 | eaa728ee | bellard | /* XXX: add a is_user flag to have proper security support */
|
617 | eaa728ee | bellard | #define PUSHW(ssp, sp, sp_mask, val)\
|
618 | eaa728ee | bellard | {\ |
619 | eaa728ee | bellard | sp -= 2;\
|
620 | eaa728ee | bellard | stw_kernel((ssp) + (sp & (sp_mask)), (val));\ |
621 | eaa728ee | bellard | } |
622 | eaa728ee | bellard | |
623 | eaa728ee | bellard | #define PUSHL(ssp, sp, sp_mask, val)\
|
624 | eaa728ee | bellard | {\ |
625 | eaa728ee | bellard | sp -= 4;\
|
626 | c0a04f0e | aliguori | stl_kernel(SEG_ADDL(ssp, sp, sp_mask), (uint32_t)(val));\ |
627 | eaa728ee | bellard | } |
628 | eaa728ee | bellard | |
629 | eaa728ee | bellard | #define POPW(ssp, sp, sp_mask, val)\
|
630 | eaa728ee | bellard | {\ |
631 | eaa728ee | bellard | val = lduw_kernel((ssp) + (sp & (sp_mask)));\ |
632 | eaa728ee | bellard | sp += 2;\
|
633 | eaa728ee | bellard | } |
634 | eaa728ee | bellard | |
635 | eaa728ee | bellard | #define POPL(ssp, sp, sp_mask, val)\
|
636 | eaa728ee | bellard | {\ |
637 | c0a04f0e | aliguori | val = (uint32_t)ldl_kernel(SEG_ADDL(ssp, sp, sp_mask));\ |
638 | eaa728ee | bellard | sp += 4;\
|
639 | eaa728ee | bellard | } |
640 | eaa728ee | bellard | |
641 | eaa728ee | bellard | /* protected mode interrupt */
|
642 | eaa728ee | bellard | static void do_interrupt_protected(int intno, int is_int, int error_code, |
643 | eaa728ee | bellard | unsigned int next_eip, int is_hw) |
644 | eaa728ee | bellard | { |
645 | eaa728ee | bellard | SegmentCache *dt; |
646 | eaa728ee | bellard | target_ulong ptr, ssp; |
647 | eaa728ee | bellard | int type, dpl, selector, ss_dpl, cpl;
|
648 | eaa728ee | bellard | int has_error_code, new_stack, shift;
|
649 | 1c918eba | blueswir1 | uint32_t e1, e2, offset, ss = 0, esp, ss_e1 = 0, ss_e2 = 0; |
650 | eaa728ee | bellard | uint32_t old_eip, sp_mask; |
651 | eaa728ee | bellard | |
652 | eaa728ee | bellard | has_error_code = 0;
|
653 | eaa728ee | bellard | if (!is_int && !is_hw) {
|
654 | eaa728ee | bellard | switch(intno) {
|
655 | eaa728ee | bellard | case 8: |
656 | eaa728ee | bellard | case 10: |
657 | eaa728ee | bellard | case 11: |
658 | eaa728ee | bellard | case 12: |
659 | eaa728ee | bellard | case 13: |
660 | eaa728ee | bellard | case 14: |
661 | eaa728ee | bellard | case 17: |
662 | eaa728ee | bellard | has_error_code = 1;
|
663 | eaa728ee | bellard | break;
|
664 | eaa728ee | bellard | } |
665 | eaa728ee | bellard | } |
666 | eaa728ee | bellard | if (is_int)
|
667 | eaa728ee | bellard | old_eip = next_eip; |
668 | eaa728ee | bellard | else
|
669 | eaa728ee | bellard | old_eip = env->eip; |
670 | eaa728ee | bellard | |
671 | eaa728ee | bellard | dt = &env->idt; |
672 | eaa728ee | bellard | if (intno * 8 + 7 > dt->limit) |
673 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 8 + 2); |
674 | eaa728ee | bellard | ptr = dt->base + intno * 8;
|
675 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
676 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
677 | eaa728ee | bellard | /* check gate type */
|
678 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
|
679 | eaa728ee | bellard | switch(type) {
|
680 | eaa728ee | bellard | case 5: /* task gate */ |
681 | eaa728ee | bellard | /* must do that check here to return the correct error code */
|
682 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
683 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2); |
684 | eaa728ee | bellard | switch_tss(intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip);
|
685 | eaa728ee | bellard | if (has_error_code) {
|
686 | eaa728ee | bellard | int type;
|
687 | eaa728ee | bellard | uint32_t mask; |
688 | eaa728ee | bellard | /* push the error code */
|
689 | eaa728ee | bellard | type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
|
690 | eaa728ee | bellard | shift = type >> 3;
|
691 | eaa728ee | bellard | if (env->segs[R_SS].flags & DESC_B_MASK)
|
692 | eaa728ee | bellard | mask = 0xffffffff;
|
693 | eaa728ee | bellard | else
|
694 | eaa728ee | bellard | mask = 0xffff;
|
695 | eaa728ee | bellard | esp = (ESP - (2 << shift)) & mask;
|
696 | eaa728ee | bellard | ssp = env->segs[R_SS].base + esp; |
697 | eaa728ee | bellard | if (shift)
|
698 | eaa728ee | bellard | stl_kernel(ssp, error_code); |
699 | eaa728ee | bellard | else
|
700 | eaa728ee | bellard | stw_kernel(ssp, error_code); |
701 | eaa728ee | bellard | SET_ESP(esp, mask); |
702 | eaa728ee | bellard | } |
703 | eaa728ee | bellard | return;
|
704 | eaa728ee | bellard | case 6: /* 286 interrupt gate */ |
705 | eaa728ee | bellard | case 7: /* 286 trap gate */ |
706 | eaa728ee | bellard | case 14: /* 386 interrupt gate */ |
707 | eaa728ee | bellard | case 15: /* 386 trap gate */ |
708 | eaa728ee | bellard | break;
|
709 | eaa728ee | bellard | default:
|
710 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 8 + 2); |
711 | eaa728ee | bellard | break;
|
712 | eaa728ee | bellard | } |
713 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
714 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
715 | 1235fc06 | ths | /* check privilege if software int */
|
716 | eaa728ee | bellard | if (is_int && dpl < cpl)
|
717 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 8 + 2); |
718 | eaa728ee | bellard | /* check valid bit */
|
719 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
720 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2); |
721 | eaa728ee | bellard | selector = e1 >> 16;
|
722 | eaa728ee | bellard | offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff); |
723 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
724 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
725 | eaa728ee | bellard | |
726 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
727 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
728 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
|
729 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
730 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
731 | eaa728ee | bellard | if (dpl > cpl)
|
732 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
733 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
734 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
735 | eaa728ee | bellard | if (!(e2 & DESC_C_MASK) && dpl < cpl) {
|
736 | eaa728ee | bellard | /* to inner privilege */
|
737 | eaa728ee | bellard | get_ss_esp_from_tss(&ss, &esp, dpl); |
738 | eaa728ee | bellard | if ((ss & 0xfffc) == 0) |
739 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
740 | eaa728ee | bellard | if ((ss & 3) != dpl) |
741 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
742 | eaa728ee | bellard | if (load_segment(&ss_e1, &ss_e2, ss) != 0) |
743 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
744 | eaa728ee | bellard | ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
|
745 | eaa728ee | bellard | if (ss_dpl != dpl)
|
746 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
747 | eaa728ee | bellard | if (!(ss_e2 & DESC_S_MASK) ||
|
748 | eaa728ee | bellard | (ss_e2 & DESC_CS_MASK) || |
749 | eaa728ee | bellard | !(ss_e2 & DESC_W_MASK)) |
750 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
751 | eaa728ee | bellard | if (!(ss_e2 & DESC_P_MASK))
|
752 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
753 | eaa728ee | bellard | new_stack = 1;
|
754 | eaa728ee | bellard | sp_mask = get_sp_mask(ss_e2); |
755 | eaa728ee | bellard | ssp = get_seg_base(ss_e1, ss_e2); |
756 | eaa728ee | bellard | } else if ((e2 & DESC_C_MASK) || dpl == cpl) { |
757 | eaa728ee | bellard | /* to same privilege */
|
758 | eaa728ee | bellard | if (env->eflags & VM_MASK)
|
759 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
760 | eaa728ee | bellard | new_stack = 0;
|
761 | eaa728ee | bellard | sp_mask = get_sp_mask(env->segs[R_SS].flags); |
762 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
763 | eaa728ee | bellard | esp = ESP; |
764 | eaa728ee | bellard | dpl = cpl; |
765 | eaa728ee | bellard | } else {
|
766 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
767 | eaa728ee | bellard | new_stack = 0; /* avoid warning */ |
768 | eaa728ee | bellard | sp_mask = 0; /* avoid warning */ |
769 | eaa728ee | bellard | ssp = 0; /* avoid warning */ |
770 | eaa728ee | bellard | esp = 0; /* avoid warning */ |
771 | eaa728ee | bellard | } |
772 | eaa728ee | bellard | |
773 | eaa728ee | bellard | shift = type >> 3;
|
774 | eaa728ee | bellard | |
775 | eaa728ee | bellard | #if 0
|
776 | eaa728ee | bellard | /* XXX: check that enough room is available */
|
777 | eaa728ee | bellard | push_size = 6 + (new_stack << 2) + (has_error_code << 1);
|
778 | eaa728ee | bellard | if (env->eflags & VM_MASK)
|
779 | eaa728ee | bellard | push_size += 8;
|
780 | eaa728ee | bellard | push_size <<= shift;
|
781 | eaa728ee | bellard | #endif
|
782 | eaa728ee | bellard | if (shift == 1) { |
783 | eaa728ee | bellard | if (new_stack) {
|
784 | eaa728ee | bellard | if (env->eflags & VM_MASK) {
|
785 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_GS].selector); |
786 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_FS].selector); |
787 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_DS].selector); |
788 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_ES].selector); |
789 | eaa728ee | bellard | } |
790 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_SS].selector); |
791 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, ESP); |
792 | eaa728ee | bellard | } |
793 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, compute_eflags()); |
794 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, env->segs[R_CS].selector); |
795 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, old_eip); |
796 | eaa728ee | bellard | if (has_error_code) {
|
797 | eaa728ee | bellard | PUSHL(ssp, esp, sp_mask, error_code); |
798 | eaa728ee | bellard | } |
799 | eaa728ee | bellard | } else {
|
800 | eaa728ee | bellard | if (new_stack) {
|
801 | eaa728ee | bellard | if (env->eflags & VM_MASK) {
|
802 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_GS].selector); |
803 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_FS].selector); |
804 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_DS].selector); |
805 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_ES].selector); |
806 | eaa728ee | bellard | } |
807 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_SS].selector); |
808 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, ESP); |
809 | eaa728ee | bellard | } |
810 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, compute_eflags()); |
811 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, env->segs[R_CS].selector); |
812 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, old_eip); |
813 | eaa728ee | bellard | if (has_error_code) {
|
814 | eaa728ee | bellard | PUSHW(ssp, esp, sp_mask, error_code); |
815 | eaa728ee | bellard | } |
816 | eaa728ee | bellard | } |
817 | eaa728ee | bellard | |
818 | eaa728ee | bellard | if (new_stack) {
|
819 | eaa728ee | bellard | if (env->eflags & VM_MASK) {
|
820 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0, 0); |
821 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0, 0); |
822 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0, 0); |
823 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0, 0); |
824 | eaa728ee | bellard | } |
825 | eaa728ee | bellard | ss = (ss & ~3) | dpl;
|
826 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, ss, |
827 | eaa728ee | bellard | ssp, get_seg_limit(ss_e1, ss_e2), ss_e2); |
828 | eaa728ee | bellard | } |
829 | eaa728ee | bellard | SET_ESP(esp, sp_mask); |
830 | eaa728ee | bellard | |
831 | eaa728ee | bellard | selector = (selector & ~3) | dpl;
|
832 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector, |
833 | eaa728ee | bellard | get_seg_base(e1, e2), |
834 | eaa728ee | bellard | get_seg_limit(e1, e2), |
835 | eaa728ee | bellard | e2); |
836 | eaa728ee | bellard | cpu_x86_set_cpl(env, dpl); |
837 | eaa728ee | bellard | env->eip = offset; |
838 | eaa728ee | bellard | |
839 | eaa728ee | bellard | /* interrupt gate clear IF mask */
|
840 | eaa728ee | bellard | if ((type & 1) == 0) { |
841 | eaa728ee | bellard | env->eflags &= ~IF_MASK; |
842 | eaa728ee | bellard | } |
843 | eaa728ee | bellard | env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK); |
844 | eaa728ee | bellard | } |
845 | eaa728ee | bellard | |
846 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
847 | eaa728ee | bellard | |
848 | eaa728ee | bellard | #define PUSHQ(sp, val)\
|
849 | eaa728ee | bellard | {\ |
850 | eaa728ee | bellard | sp -= 8;\
|
851 | eaa728ee | bellard | stq_kernel(sp, (val));\ |
852 | eaa728ee | bellard | } |
853 | eaa728ee | bellard | |
854 | eaa728ee | bellard | #define POPQ(sp, val)\
|
855 | eaa728ee | bellard | {\ |
856 | eaa728ee | bellard | val = ldq_kernel(sp);\ |
857 | eaa728ee | bellard | sp += 8;\
|
858 | eaa728ee | bellard | } |
859 | eaa728ee | bellard | |
860 | eaa728ee | bellard | static inline target_ulong get_rsp_from_tss(int level) |
861 | eaa728ee | bellard | { |
862 | eaa728ee | bellard | int index;
|
863 | eaa728ee | bellard | |
864 | eaa728ee | bellard | #if 0
|
865 | eaa728ee | bellard | printf("TR: base=" TARGET_FMT_lx " limit=%x\n",
|
866 | eaa728ee | bellard | env->tr.base, env->tr.limit);
|
867 | eaa728ee | bellard | #endif
|
868 | eaa728ee | bellard | |
869 | eaa728ee | bellard | if (!(env->tr.flags & DESC_P_MASK))
|
870 | eaa728ee | bellard | cpu_abort(env, "invalid tss");
|
871 | eaa728ee | bellard | index = 8 * level + 4; |
872 | eaa728ee | bellard | if ((index + 7) > env->tr.limit) |
873 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, env->tr.selector & 0xfffc);
|
874 | eaa728ee | bellard | return ldq_kernel(env->tr.base + index);
|
875 | eaa728ee | bellard | } |
876 | eaa728ee | bellard | |
877 | eaa728ee | bellard | /* 64 bit interrupt */
|
878 | eaa728ee | bellard | static void do_interrupt64(int intno, int is_int, int error_code, |
879 | eaa728ee | bellard | target_ulong next_eip, int is_hw)
|
880 | eaa728ee | bellard | { |
881 | eaa728ee | bellard | SegmentCache *dt; |
882 | eaa728ee | bellard | target_ulong ptr; |
883 | eaa728ee | bellard | int type, dpl, selector, cpl, ist;
|
884 | eaa728ee | bellard | int has_error_code, new_stack;
|
885 | eaa728ee | bellard | uint32_t e1, e2, e3, ss; |
886 | eaa728ee | bellard | target_ulong old_eip, esp, offset; |
887 | eaa728ee | bellard | |
888 | eaa728ee | bellard | has_error_code = 0;
|
889 | eaa728ee | bellard | if (!is_int && !is_hw) {
|
890 | eaa728ee | bellard | switch(intno) {
|
891 | eaa728ee | bellard | case 8: |
892 | eaa728ee | bellard | case 10: |
893 | eaa728ee | bellard | case 11: |
894 | eaa728ee | bellard | case 12: |
895 | eaa728ee | bellard | case 13: |
896 | eaa728ee | bellard | case 14: |
897 | eaa728ee | bellard | case 17: |
898 | eaa728ee | bellard | has_error_code = 1;
|
899 | eaa728ee | bellard | break;
|
900 | eaa728ee | bellard | } |
901 | eaa728ee | bellard | } |
902 | eaa728ee | bellard | if (is_int)
|
903 | eaa728ee | bellard | old_eip = next_eip; |
904 | eaa728ee | bellard | else
|
905 | eaa728ee | bellard | old_eip = env->eip; |
906 | eaa728ee | bellard | |
907 | eaa728ee | bellard | dt = &env->idt; |
908 | eaa728ee | bellard | if (intno * 16 + 15 > dt->limit) |
909 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 16 + 2); |
910 | eaa728ee | bellard | ptr = dt->base + intno * 16;
|
911 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
912 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
913 | eaa728ee | bellard | e3 = ldl_kernel(ptr + 8);
|
914 | eaa728ee | bellard | /* check gate type */
|
915 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
|
916 | eaa728ee | bellard | switch(type) {
|
917 | eaa728ee | bellard | case 14: /* 386 interrupt gate */ |
918 | eaa728ee | bellard | case 15: /* 386 trap gate */ |
919 | eaa728ee | bellard | break;
|
920 | eaa728ee | bellard | default:
|
921 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 16 + 2); |
922 | eaa728ee | bellard | break;
|
923 | eaa728ee | bellard | } |
924 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
925 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
926 | 1235fc06 | ths | /* check privilege if software int */
|
927 | eaa728ee | bellard | if (is_int && dpl < cpl)
|
928 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 16 + 2); |
929 | eaa728ee | bellard | /* check valid bit */
|
930 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
931 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, intno * 16 + 2); |
932 | eaa728ee | bellard | selector = e1 >> 16;
|
933 | eaa728ee | bellard | offset = ((target_ulong)e3 << 32) | (e2 & 0xffff0000) | (e1 & 0x0000ffff); |
934 | eaa728ee | bellard | ist = e2 & 7;
|
935 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
936 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
937 | eaa728ee | bellard | |
938 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
939 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
940 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
|
941 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
942 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
943 | eaa728ee | bellard | if (dpl > cpl)
|
944 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
945 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
946 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
947 | eaa728ee | bellard | if (!(e2 & DESC_L_MASK) || (e2 & DESC_B_MASK))
|
948 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
949 | eaa728ee | bellard | if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) { |
950 | eaa728ee | bellard | /* to inner privilege */
|
951 | eaa728ee | bellard | if (ist != 0) |
952 | eaa728ee | bellard | esp = get_rsp_from_tss(ist + 3);
|
953 | eaa728ee | bellard | else
|
954 | eaa728ee | bellard | esp = get_rsp_from_tss(dpl); |
955 | eaa728ee | bellard | esp &= ~0xfLL; /* align stack */ |
956 | eaa728ee | bellard | ss = 0;
|
957 | eaa728ee | bellard | new_stack = 1;
|
958 | eaa728ee | bellard | } else if ((e2 & DESC_C_MASK) || dpl == cpl) { |
959 | eaa728ee | bellard | /* to same privilege */
|
960 | eaa728ee | bellard | if (env->eflags & VM_MASK)
|
961 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
962 | eaa728ee | bellard | new_stack = 0;
|
963 | eaa728ee | bellard | if (ist != 0) |
964 | eaa728ee | bellard | esp = get_rsp_from_tss(ist + 3);
|
965 | eaa728ee | bellard | else
|
966 | eaa728ee | bellard | esp = ESP; |
967 | eaa728ee | bellard | esp &= ~0xfLL; /* align stack */ |
968 | eaa728ee | bellard | dpl = cpl; |
969 | eaa728ee | bellard | } else {
|
970 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
971 | eaa728ee | bellard | new_stack = 0; /* avoid warning */ |
972 | eaa728ee | bellard | esp = 0; /* avoid warning */ |
973 | eaa728ee | bellard | } |
974 | eaa728ee | bellard | |
975 | eaa728ee | bellard | PUSHQ(esp, env->segs[R_SS].selector); |
976 | eaa728ee | bellard | PUSHQ(esp, ESP); |
977 | eaa728ee | bellard | PUSHQ(esp, compute_eflags()); |
978 | eaa728ee | bellard | PUSHQ(esp, env->segs[R_CS].selector); |
979 | eaa728ee | bellard | PUSHQ(esp, old_eip); |
980 | eaa728ee | bellard | if (has_error_code) {
|
981 | eaa728ee | bellard | PUSHQ(esp, error_code); |
982 | eaa728ee | bellard | } |
983 | eaa728ee | bellard | |
984 | eaa728ee | bellard | if (new_stack) {
|
985 | eaa728ee | bellard | ss = 0 | dpl;
|
986 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, ss, 0, 0, 0); |
987 | eaa728ee | bellard | } |
988 | eaa728ee | bellard | ESP = esp; |
989 | eaa728ee | bellard | |
990 | eaa728ee | bellard | selector = (selector & ~3) | dpl;
|
991 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector, |
992 | eaa728ee | bellard | get_seg_base(e1, e2), |
993 | eaa728ee | bellard | get_seg_limit(e1, e2), |
994 | eaa728ee | bellard | e2); |
995 | eaa728ee | bellard | cpu_x86_set_cpl(env, dpl); |
996 | eaa728ee | bellard | env->eip = offset; |
997 | eaa728ee | bellard | |
998 | eaa728ee | bellard | /* interrupt gate clear IF mask */
|
999 | eaa728ee | bellard | if ((type & 1) == 0) { |
1000 | eaa728ee | bellard | env->eflags &= ~IF_MASK; |
1001 | eaa728ee | bellard | } |
1002 | eaa728ee | bellard | env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK); |
1003 | eaa728ee | bellard | } |
1004 | eaa728ee | bellard | #endif
|
1005 | eaa728ee | bellard | |
1006 | d9957a8b | blueswir1 | #ifdef TARGET_X86_64
|
1007 | eaa728ee | bellard | #if defined(CONFIG_USER_ONLY)
|
1008 | eaa728ee | bellard | void helper_syscall(int next_eip_addend) |
1009 | eaa728ee | bellard | { |
1010 | eaa728ee | bellard | env->exception_index = EXCP_SYSCALL; |
1011 | eaa728ee | bellard | env->exception_next_eip = env->eip + next_eip_addend; |
1012 | eaa728ee | bellard | cpu_loop_exit(); |
1013 | eaa728ee | bellard | } |
1014 | eaa728ee | bellard | #else
|
1015 | eaa728ee | bellard | void helper_syscall(int next_eip_addend) |
1016 | eaa728ee | bellard | { |
1017 | eaa728ee | bellard | int selector;
|
1018 | eaa728ee | bellard | |
1019 | eaa728ee | bellard | if (!(env->efer & MSR_EFER_SCE)) {
|
1020 | eaa728ee | bellard | raise_exception_err(EXCP06_ILLOP, 0);
|
1021 | eaa728ee | bellard | } |
1022 | eaa728ee | bellard | selector = (env->star >> 32) & 0xffff; |
1023 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
1024 | eaa728ee | bellard | int code64;
|
1025 | eaa728ee | bellard | |
1026 | eaa728ee | bellard | ECX = env->eip + next_eip_addend; |
1027 | eaa728ee | bellard | env->regs[11] = compute_eflags();
|
1028 | eaa728ee | bellard | |
1029 | eaa728ee | bellard | code64 = env->hflags & HF_CS64_MASK; |
1030 | eaa728ee | bellard | |
1031 | eaa728ee | bellard | cpu_x86_set_cpl(env, 0);
|
1032 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
|
1033 | eaa728ee | bellard | 0, 0xffffffff, |
1034 | eaa728ee | bellard | DESC_G_MASK | DESC_P_MASK | |
1035 | eaa728ee | bellard | DESC_S_MASK | |
1036 | eaa728ee | bellard | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); |
1037 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, |
1038 | eaa728ee | bellard | 0, 0xffffffff, |
1039 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1040 | eaa728ee | bellard | DESC_S_MASK | |
1041 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
1042 | eaa728ee | bellard | env->eflags &= ~env->fmask; |
1043 | eaa728ee | bellard | load_eflags(env->eflags, 0);
|
1044 | eaa728ee | bellard | if (code64)
|
1045 | eaa728ee | bellard | env->eip = env->lstar; |
1046 | eaa728ee | bellard | else
|
1047 | eaa728ee | bellard | env->eip = env->cstar; |
1048 | d9957a8b | blueswir1 | } else {
|
1049 | eaa728ee | bellard | ECX = (uint32_t)(env->eip + next_eip_addend); |
1050 | eaa728ee | bellard | |
1051 | eaa728ee | bellard | cpu_x86_set_cpl(env, 0);
|
1052 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
|
1053 | eaa728ee | bellard | 0, 0xffffffff, |
1054 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1055 | eaa728ee | bellard | DESC_S_MASK | |
1056 | eaa728ee | bellard | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); |
1057 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, |
1058 | eaa728ee | bellard | 0, 0xffffffff, |
1059 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1060 | eaa728ee | bellard | DESC_S_MASK | |
1061 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
1062 | eaa728ee | bellard | env->eflags &= ~(IF_MASK | RF_MASK | VM_MASK); |
1063 | eaa728ee | bellard | env->eip = (uint32_t)env->star; |
1064 | eaa728ee | bellard | } |
1065 | eaa728ee | bellard | } |
1066 | eaa728ee | bellard | #endif
|
1067 | d9957a8b | blueswir1 | #endif
|
1068 | eaa728ee | bellard | |
1069 | d9957a8b | blueswir1 | #ifdef TARGET_X86_64
|
1070 | eaa728ee | bellard | void helper_sysret(int dflag) |
1071 | eaa728ee | bellard | { |
1072 | eaa728ee | bellard | int cpl, selector;
|
1073 | eaa728ee | bellard | |
1074 | eaa728ee | bellard | if (!(env->efer & MSR_EFER_SCE)) {
|
1075 | eaa728ee | bellard | raise_exception_err(EXCP06_ILLOP, 0);
|
1076 | eaa728ee | bellard | } |
1077 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
1078 | eaa728ee | bellard | if (!(env->cr[0] & CR0_PE_MASK) || cpl != 0) { |
1079 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
1080 | eaa728ee | bellard | } |
1081 | eaa728ee | bellard | selector = (env->star >> 48) & 0xffff; |
1082 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
1083 | eaa728ee | bellard | if (dflag == 2) { |
1084 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3, |
1085 | eaa728ee | bellard | 0, 0xffffffff, |
1086 | eaa728ee | bellard | DESC_G_MASK | DESC_P_MASK | |
1087 | eaa728ee | bellard | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
1088 | eaa728ee | bellard | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | |
1089 | eaa728ee | bellard | DESC_L_MASK); |
1090 | eaa728ee | bellard | env->eip = ECX; |
1091 | eaa728ee | bellard | } else {
|
1092 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector | 3,
|
1093 | eaa728ee | bellard | 0, 0xffffffff, |
1094 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1095 | eaa728ee | bellard | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
1096 | eaa728ee | bellard | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); |
1097 | eaa728ee | bellard | env->eip = (uint32_t)ECX; |
1098 | eaa728ee | bellard | } |
1099 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, selector + 8,
|
1100 | eaa728ee | bellard | 0, 0xffffffff, |
1101 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1102 | eaa728ee | bellard | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
1103 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
1104 | eaa728ee | bellard | load_eflags((uint32_t)(env->regs[11]), TF_MASK | AC_MASK | ID_MASK |
|
1105 | eaa728ee | bellard | IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK); |
1106 | eaa728ee | bellard | cpu_x86_set_cpl(env, 3);
|
1107 | d9957a8b | blueswir1 | } else {
|
1108 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector | 3,
|
1109 | eaa728ee | bellard | 0, 0xffffffff, |
1110 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1111 | eaa728ee | bellard | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
1112 | eaa728ee | bellard | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); |
1113 | eaa728ee | bellard | env->eip = (uint32_t)ECX; |
1114 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, selector + 8,
|
1115 | eaa728ee | bellard | 0, 0xffffffff, |
1116 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
1117 | eaa728ee | bellard | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
1118 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
1119 | eaa728ee | bellard | env->eflags |= IF_MASK; |
1120 | eaa728ee | bellard | cpu_x86_set_cpl(env, 3);
|
1121 | eaa728ee | bellard | } |
1122 | eaa728ee | bellard | #ifdef USE_KQEMU
|
1123 | eaa728ee | bellard | if (kqemu_is_ok(env)) {
|
1124 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK)
|
1125 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
1126 | eaa728ee | bellard | env->exception_index = -1;
|
1127 | eaa728ee | bellard | cpu_loop_exit(); |
1128 | eaa728ee | bellard | } |
1129 | eaa728ee | bellard | #endif
|
1130 | eaa728ee | bellard | } |
1131 | d9957a8b | blueswir1 | #endif
|
1132 | eaa728ee | bellard | |
1133 | eaa728ee | bellard | /* real mode interrupt */
|
1134 | eaa728ee | bellard | static void do_interrupt_real(int intno, int is_int, int error_code, |
1135 | eaa728ee | bellard | unsigned int next_eip) |
1136 | eaa728ee | bellard | { |
1137 | eaa728ee | bellard | SegmentCache *dt; |
1138 | eaa728ee | bellard | target_ulong ptr, ssp; |
1139 | eaa728ee | bellard | int selector;
|
1140 | eaa728ee | bellard | uint32_t offset, esp; |
1141 | eaa728ee | bellard | uint32_t old_cs, old_eip; |
1142 | eaa728ee | bellard | |
1143 | eaa728ee | bellard | /* real mode (simpler !) */
|
1144 | eaa728ee | bellard | dt = &env->idt; |
1145 | eaa728ee | bellard | if (intno * 4 + 3 > dt->limit) |
1146 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, intno * 8 + 2); |
1147 | eaa728ee | bellard | ptr = dt->base + intno * 4;
|
1148 | eaa728ee | bellard | offset = lduw_kernel(ptr); |
1149 | eaa728ee | bellard | selector = lduw_kernel(ptr + 2);
|
1150 | eaa728ee | bellard | esp = ESP; |
1151 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
1152 | eaa728ee | bellard | if (is_int)
|
1153 | eaa728ee | bellard | old_eip = next_eip; |
1154 | eaa728ee | bellard | else
|
1155 | eaa728ee | bellard | old_eip = env->eip; |
1156 | eaa728ee | bellard | old_cs = env->segs[R_CS].selector; |
1157 | eaa728ee | bellard | /* XXX: use SS segment size ? */
|
1158 | eaa728ee | bellard | PUSHW(ssp, esp, 0xffff, compute_eflags());
|
1159 | eaa728ee | bellard | PUSHW(ssp, esp, 0xffff, old_cs);
|
1160 | eaa728ee | bellard | PUSHW(ssp, esp, 0xffff, old_eip);
|
1161 | eaa728ee | bellard | |
1162 | eaa728ee | bellard | /* update processor state */
|
1163 | eaa728ee | bellard | ESP = (ESP & ~0xffff) | (esp & 0xffff); |
1164 | eaa728ee | bellard | env->eip = offset; |
1165 | eaa728ee | bellard | env->segs[R_CS].selector = selector; |
1166 | eaa728ee | bellard | env->segs[R_CS].base = (selector << 4);
|
1167 | eaa728ee | bellard | env->eflags &= ~(IF_MASK | TF_MASK | AC_MASK | RF_MASK); |
1168 | eaa728ee | bellard | } |
1169 | eaa728ee | bellard | |
1170 | eaa728ee | bellard | /* fake user mode interrupt */
|
1171 | eaa728ee | bellard | void do_interrupt_user(int intno, int is_int, int error_code, |
1172 | eaa728ee | bellard | target_ulong next_eip) |
1173 | eaa728ee | bellard | { |
1174 | eaa728ee | bellard | SegmentCache *dt; |
1175 | eaa728ee | bellard | target_ulong ptr; |
1176 | eaa728ee | bellard | int dpl, cpl, shift;
|
1177 | eaa728ee | bellard | uint32_t e2; |
1178 | eaa728ee | bellard | |
1179 | eaa728ee | bellard | dt = &env->idt; |
1180 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
1181 | eaa728ee | bellard | shift = 4;
|
1182 | eaa728ee | bellard | } else {
|
1183 | eaa728ee | bellard | shift = 3;
|
1184 | eaa728ee | bellard | } |
1185 | eaa728ee | bellard | ptr = dt->base + (intno << shift); |
1186 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
1187 | eaa728ee | bellard | |
1188 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
1189 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
1190 | 1235fc06 | ths | /* check privilege if software int */
|
1191 | eaa728ee | bellard | if (is_int && dpl < cpl)
|
1192 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, (intno << shift) + 2);
|
1193 | eaa728ee | bellard | |
1194 | eaa728ee | bellard | /* Since we emulate only user space, we cannot do more than
|
1195 | eaa728ee | bellard | exiting the emulation with the suitable exception and error
|
1196 | eaa728ee | bellard | code */
|
1197 | eaa728ee | bellard | if (is_int)
|
1198 | eaa728ee | bellard | EIP = next_eip; |
1199 | eaa728ee | bellard | } |
1200 | eaa728ee | bellard | |
1201 | eaa728ee | bellard | /*
|
1202 | eaa728ee | bellard | * Begin execution of an interruption. is_int is TRUE if coming from
|
1203 | eaa728ee | bellard | * the int instruction. next_eip is the EIP value AFTER the interrupt
|
1204 | eaa728ee | bellard | * instruction. It is only relevant if is_int is TRUE.
|
1205 | eaa728ee | bellard | */
|
1206 | eaa728ee | bellard | void do_interrupt(int intno, int is_int, int error_code, |
1207 | eaa728ee | bellard | target_ulong next_eip, int is_hw)
|
1208 | eaa728ee | bellard | { |
1209 | 8fec2b8c | aliguori | if (qemu_loglevel_mask(CPU_LOG_INT)) {
|
1210 | eaa728ee | bellard | if ((env->cr[0] & CR0_PE_MASK)) { |
1211 | eaa728ee | bellard | static int count; |
1212 | 93fcfe39 | aliguori | qemu_log("%6d: v=%02x e=%04x i=%d cpl=%d IP=%04x:" TARGET_FMT_lx " pc=" TARGET_FMT_lx " SP=%04x:" TARGET_FMT_lx, |
1213 | eaa728ee | bellard | count, intno, error_code, is_int, |
1214 | eaa728ee | bellard | env->hflags & HF_CPL_MASK, |
1215 | eaa728ee | bellard | env->segs[R_CS].selector, EIP, |
1216 | eaa728ee | bellard | (int)env->segs[R_CS].base + EIP,
|
1217 | eaa728ee | bellard | env->segs[R_SS].selector, ESP); |
1218 | eaa728ee | bellard | if (intno == 0x0e) { |
1219 | 93fcfe39 | aliguori | qemu_log(" CR2=" TARGET_FMT_lx, env->cr[2]); |
1220 | eaa728ee | bellard | } else {
|
1221 | 93fcfe39 | aliguori | qemu_log(" EAX=" TARGET_FMT_lx, EAX);
|
1222 | eaa728ee | bellard | } |
1223 | 93fcfe39 | aliguori | qemu_log("\n");
|
1224 | 93fcfe39 | aliguori | log_cpu_state(env, X86_DUMP_CCOP); |
1225 | eaa728ee | bellard | #if 0
|
1226 | eaa728ee | bellard | {
|
1227 | eaa728ee | bellard | int i;
|
1228 | eaa728ee | bellard | uint8_t *ptr;
|
1229 | 93fcfe39 | aliguori | qemu_log(" code=");
|
1230 | eaa728ee | bellard | ptr = env->segs[R_CS].base + env->eip;
|
1231 | eaa728ee | bellard | for(i = 0; i < 16; i++) {
|
1232 | 93fcfe39 | aliguori | qemu_log(" %02x", ldub(ptr + i));
|
1233 | eaa728ee | bellard | }
|
1234 | 93fcfe39 | aliguori | qemu_log("\n");
|
1235 | eaa728ee | bellard | }
|
1236 | eaa728ee | bellard | #endif
|
1237 | eaa728ee | bellard | count++; |
1238 | eaa728ee | bellard | } |
1239 | eaa728ee | bellard | } |
1240 | eaa728ee | bellard | if (env->cr[0] & CR0_PE_MASK) { |
1241 | eb38c52c | blueswir1 | #ifdef TARGET_X86_64
|
1242 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
1243 | eaa728ee | bellard | do_interrupt64(intno, is_int, error_code, next_eip, is_hw); |
1244 | eaa728ee | bellard | } else
|
1245 | eaa728ee | bellard | #endif
|
1246 | eaa728ee | bellard | { |
1247 | eaa728ee | bellard | do_interrupt_protected(intno, is_int, error_code, next_eip, is_hw); |
1248 | eaa728ee | bellard | } |
1249 | eaa728ee | bellard | } else {
|
1250 | eaa728ee | bellard | do_interrupt_real(intno, is_int, error_code, next_eip); |
1251 | eaa728ee | bellard | } |
1252 | eaa728ee | bellard | } |
1253 | eaa728ee | bellard | |
1254 | f55761a0 | aliguori | /* This should come from sysemu.h - if we could include it here... */
|
1255 | f55761a0 | aliguori | void qemu_system_reset_request(void); |
1256 | f55761a0 | aliguori | |
1257 | eaa728ee | bellard | /*
|
1258 | eaa728ee | bellard | * Check nested exceptions and change to double or triple fault if
|
1259 | eaa728ee | bellard | * needed. It should only be called, if this is not an interrupt.
|
1260 | eaa728ee | bellard | * Returns the new exception number.
|
1261 | eaa728ee | bellard | */
|
1262 | eaa728ee | bellard | static int check_exception(int intno, int *error_code) |
1263 | eaa728ee | bellard | { |
1264 | eaa728ee | bellard | int first_contributory = env->old_exception == 0 || |
1265 | eaa728ee | bellard | (env->old_exception >= 10 &&
|
1266 | eaa728ee | bellard | env->old_exception <= 13);
|
1267 | eaa728ee | bellard | int second_contributory = intno == 0 || |
1268 | eaa728ee | bellard | (intno >= 10 && intno <= 13); |
1269 | eaa728ee | bellard | |
1270 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_INT, "check_exception old: 0x%x new 0x%x\n",
|
1271 | eaa728ee | bellard | env->old_exception, intno); |
1272 | eaa728ee | bellard | |
1273 | f55761a0 | aliguori | #if !defined(CONFIG_USER_ONLY)
|
1274 | f55761a0 | aliguori | if (env->old_exception == EXCP08_DBLE) {
|
1275 | f55761a0 | aliguori | if (env->hflags & HF_SVMI_MASK)
|
1276 | f55761a0 | aliguori | helper_vmexit(SVM_EXIT_SHUTDOWN, 0); /* does not return */ |
1277 | f55761a0 | aliguori | |
1278 | 680c3069 | aliguori | qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
|
1279 | f55761a0 | aliguori | |
1280 | f55761a0 | aliguori | qemu_system_reset_request(); |
1281 | f55761a0 | aliguori | return EXCP_HLT;
|
1282 | f55761a0 | aliguori | } |
1283 | f55761a0 | aliguori | #endif
|
1284 | eaa728ee | bellard | |
1285 | eaa728ee | bellard | if ((first_contributory && second_contributory)
|
1286 | eaa728ee | bellard | || (env->old_exception == EXCP0E_PAGE && |
1287 | eaa728ee | bellard | (second_contributory || (intno == EXCP0E_PAGE)))) { |
1288 | eaa728ee | bellard | intno = EXCP08_DBLE; |
1289 | eaa728ee | bellard | *error_code = 0;
|
1290 | eaa728ee | bellard | } |
1291 | eaa728ee | bellard | |
1292 | eaa728ee | bellard | if (second_contributory || (intno == EXCP0E_PAGE) ||
|
1293 | eaa728ee | bellard | (intno == EXCP08_DBLE)) |
1294 | eaa728ee | bellard | env->old_exception = intno; |
1295 | eaa728ee | bellard | |
1296 | eaa728ee | bellard | return intno;
|
1297 | eaa728ee | bellard | } |
1298 | eaa728ee | bellard | |
1299 | eaa728ee | bellard | /*
|
1300 | eaa728ee | bellard | * Signal an interruption. It is executed in the main CPU loop.
|
1301 | eaa728ee | bellard | * is_int is TRUE if coming from the int instruction. next_eip is the
|
1302 | eaa728ee | bellard | * EIP value AFTER the interrupt instruction. It is only relevant if
|
1303 | eaa728ee | bellard | * is_int is TRUE.
|
1304 | eaa728ee | bellard | */
|
1305 | a5e50b26 | malc | static void QEMU_NORETURN raise_interrupt(int intno, int is_int, int error_code, |
1306 | a5e50b26 | malc | int next_eip_addend)
|
1307 | eaa728ee | bellard | { |
1308 | eaa728ee | bellard | if (!is_int) {
|
1309 | eaa728ee | bellard | helper_svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code); |
1310 | eaa728ee | bellard | intno = check_exception(intno, &error_code); |
1311 | 872929aa | bellard | } else {
|
1312 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_SWINT, 0);
|
1313 | eaa728ee | bellard | } |
1314 | eaa728ee | bellard | |
1315 | eaa728ee | bellard | env->exception_index = intno; |
1316 | eaa728ee | bellard | env->error_code = error_code; |
1317 | eaa728ee | bellard | env->exception_is_int = is_int; |
1318 | eaa728ee | bellard | env->exception_next_eip = env->eip + next_eip_addend; |
1319 | eaa728ee | bellard | cpu_loop_exit(); |
1320 | eaa728ee | bellard | } |
1321 | eaa728ee | bellard | |
1322 | eaa728ee | bellard | /* shortcuts to generate exceptions */
|
1323 | eaa728ee | bellard | |
1324 | d9957a8b | blueswir1 | void raise_exception_err(int exception_index, int error_code) |
1325 | eaa728ee | bellard | { |
1326 | eaa728ee | bellard | raise_interrupt(exception_index, 0, error_code, 0); |
1327 | eaa728ee | bellard | } |
1328 | eaa728ee | bellard | |
1329 | eaa728ee | bellard | void raise_exception(int exception_index) |
1330 | eaa728ee | bellard | { |
1331 | eaa728ee | bellard | raise_interrupt(exception_index, 0, 0, 0); |
1332 | eaa728ee | bellard | } |
1333 | eaa728ee | bellard | |
1334 | eaa728ee | bellard | /* SMM support */
|
1335 | eaa728ee | bellard | |
1336 | eaa728ee | bellard | #if defined(CONFIG_USER_ONLY)
|
1337 | eaa728ee | bellard | |
1338 | eaa728ee | bellard | void do_smm_enter(void) |
1339 | eaa728ee | bellard | { |
1340 | eaa728ee | bellard | } |
1341 | eaa728ee | bellard | |
1342 | eaa728ee | bellard | void helper_rsm(void) |
1343 | eaa728ee | bellard | { |
1344 | eaa728ee | bellard | } |
1345 | eaa728ee | bellard | |
1346 | eaa728ee | bellard | #else
|
1347 | eaa728ee | bellard | |
1348 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1349 | eaa728ee | bellard | #define SMM_REVISION_ID 0x00020064 |
1350 | eaa728ee | bellard | #else
|
1351 | eaa728ee | bellard | #define SMM_REVISION_ID 0x00020000 |
1352 | eaa728ee | bellard | #endif
|
1353 | eaa728ee | bellard | |
1354 | eaa728ee | bellard | void do_smm_enter(void) |
1355 | eaa728ee | bellard | { |
1356 | eaa728ee | bellard | target_ulong sm_state; |
1357 | eaa728ee | bellard | SegmentCache *dt; |
1358 | eaa728ee | bellard | int i, offset;
|
1359 | eaa728ee | bellard | |
1360 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_INT, "SMM: enter\n");
|
1361 | 93fcfe39 | aliguori | log_cpu_state_mask(CPU_LOG_INT, env, X86_DUMP_CCOP); |
1362 | eaa728ee | bellard | |
1363 | eaa728ee | bellard | env->hflags |= HF_SMM_MASK; |
1364 | eaa728ee | bellard | cpu_smm_update(env); |
1365 | eaa728ee | bellard | |
1366 | eaa728ee | bellard | sm_state = env->smbase + 0x8000;
|
1367 | eaa728ee | bellard | |
1368 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1369 | eaa728ee | bellard | for(i = 0; i < 6; i++) { |
1370 | eaa728ee | bellard | dt = &env->segs[i]; |
1371 | eaa728ee | bellard | offset = 0x7e00 + i * 16; |
1372 | eaa728ee | bellard | stw_phys(sm_state + offset, dt->selector); |
1373 | eaa728ee | bellard | stw_phys(sm_state + offset + 2, (dt->flags >> 8) & 0xf0ff); |
1374 | eaa728ee | bellard | stl_phys(sm_state + offset + 4, dt->limit);
|
1375 | eaa728ee | bellard | stq_phys(sm_state + offset + 8, dt->base);
|
1376 | eaa728ee | bellard | } |
1377 | eaa728ee | bellard | |
1378 | eaa728ee | bellard | stq_phys(sm_state + 0x7e68, env->gdt.base);
|
1379 | eaa728ee | bellard | stl_phys(sm_state + 0x7e64, env->gdt.limit);
|
1380 | eaa728ee | bellard | |
1381 | eaa728ee | bellard | stw_phys(sm_state + 0x7e70, env->ldt.selector);
|
1382 | eaa728ee | bellard | stq_phys(sm_state + 0x7e78, env->ldt.base);
|
1383 | eaa728ee | bellard | stl_phys(sm_state + 0x7e74, env->ldt.limit);
|
1384 | eaa728ee | bellard | stw_phys(sm_state + 0x7e72, (env->ldt.flags >> 8) & 0xf0ff); |
1385 | eaa728ee | bellard | |
1386 | eaa728ee | bellard | stq_phys(sm_state + 0x7e88, env->idt.base);
|
1387 | eaa728ee | bellard | stl_phys(sm_state + 0x7e84, env->idt.limit);
|
1388 | eaa728ee | bellard | |
1389 | eaa728ee | bellard | stw_phys(sm_state + 0x7e90, env->tr.selector);
|
1390 | eaa728ee | bellard | stq_phys(sm_state + 0x7e98, env->tr.base);
|
1391 | eaa728ee | bellard | stl_phys(sm_state + 0x7e94, env->tr.limit);
|
1392 | eaa728ee | bellard | stw_phys(sm_state + 0x7e92, (env->tr.flags >> 8) & 0xf0ff); |
1393 | eaa728ee | bellard | |
1394 | eaa728ee | bellard | stq_phys(sm_state + 0x7ed0, env->efer);
|
1395 | eaa728ee | bellard | |
1396 | eaa728ee | bellard | stq_phys(sm_state + 0x7ff8, EAX);
|
1397 | eaa728ee | bellard | stq_phys(sm_state + 0x7ff0, ECX);
|
1398 | eaa728ee | bellard | stq_phys(sm_state + 0x7fe8, EDX);
|
1399 | eaa728ee | bellard | stq_phys(sm_state + 0x7fe0, EBX);
|
1400 | eaa728ee | bellard | stq_phys(sm_state + 0x7fd8, ESP);
|
1401 | eaa728ee | bellard | stq_phys(sm_state + 0x7fd0, EBP);
|
1402 | eaa728ee | bellard | stq_phys(sm_state + 0x7fc8, ESI);
|
1403 | eaa728ee | bellard | stq_phys(sm_state + 0x7fc0, EDI);
|
1404 | eaa728ee | bellard | for(i = 8; i < 16; i++) |
1405 | eaa728ee | bellard | stq_phys(sm_state + 0x7ff8 - i * 8, env->regs[i]); |
1406 | eaa728ee | bellard | stq_phys(sm_state + 0x7f78, env->eip);
|
1407 | eaa728ee | bellard | stl_phys(sm_state + 0x7f70, compute_eflags());
|
1408 | eaa728ee | bellard | stl_phys(sm_state + 0x7f68, env->dr[6]); |
1409 | eaa728ee | bellard | stl_phys(sm_state + 0x7f60, env->dr[7]); |
1410 | eaa728ee | bellard | |
1411 | eaa728ee | bellard | stl_phys(sm_state + 0x7f48, env->cr[4]); |
1412 | eaa728ee | bellard | stl_phys(sm_state + 0x7f50, env->cr[3]); |
1413 | eaa728ee | bellard | stl_phys(sm_state + 0x7f58, env->cr[0]); |
1414 | eaa728ee | bellard | |
1415 | eaa728ee | bellard | stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
|
1416 | eaa728ee | bellard | stl_phys(sm_state + 0x7f00, env->smbase);
|
1417 | eaa728ee | bellard | #else
|
1418 | eaa728ee | bellard | stl_phys(sm_state + 0x7ffc, env->cr[0]); |
1419 | eaa728ee | bellard | stl_phys(sm_state + 0x7ff8, env->cr[3]); |
1420 | eaa728ee | bellard | stl_phys(sm_state + 0x7ff4, compute_eflags());
|
1421 | eaa728ee | bellard | stl_phys(sm_state + 0x7ff0, env->eip);
|
1422 | eaa728ee | bellard | stl_phys(sm_state + 0x7fec, EDI);
|
1423 | eaa728ee | bellard | stl_phys(sm_state + 0x7fe8, ESI);
|
1424 | eaa728ee | bellard | stl_phys(sm_state + 0x7fe4, EBP);
|
1425 | eaa728ee | bellard | stl_phys(sm_state + 0x7fe0, ESP);
|
1426 | eaa728ee | bellard | stl_phys(sm_state + 0x7fdc, EBX);
|
1427 | eaa728ee | bellard | stl_phys(sm_state + 0x7fd8, EDX);
|
1428 | eaa728ee | bellard | stl_phys(sm_state + 0x7fd4, ECX);
|
1429 | eaa728ee | bellard | stl_phys(sm_state + 0x7fd0, EAX);
|
1430 | eaa728ee | bellard | stl_phys(sm_state + 0x7fcc, env->dr[6]); |
1431 | eaa728ee | bellard | stl_phys(sm_state + 0x7fc8, env->dr[7]); |
1432 | eaa728ee | bellard | |
1433 | eaa728ee | bellard | stl_phys(sm_state + 0x7fc4, env->tr.selector);
|
1434 | eaa728ee | bellard | stl_phys(sm_state + 0x7f64, env->tr.base);
|
1435 | eaa728ee | bellard | stl_phys(sm_state + 0x7f60, env->tr.limit);
|
1436 | eaa728ee | bellard | stl_phys(sm_state + 0x7f5c, (env->tr.flags >> 8) & 0xf0ff); |
1437 | eaa728ee | bellard | |
1438 | eaa728ee | bellard | stl_phys(sm_state + 0x7fc0, env->ldt.selector);
|
1439 | eaa728ee | bellard | stl_phys(sm_state + 0x7f80, env->ldt.base);
|
1440 | eaa728ee | bellard | stl_phys(sm_state + 0x7f7c, env->ldt.limit);
|
1441 | eaa728ee | bellard | stl_phys(sm_state + 0x7f78, (env->ldt.flags >> 8) & 0xf0ff); |
1442 | eaa728ee | bellard | |
1443 | eaa728ee | bellard | stl_phys(sm_state + 0x7f74, env->gdt.base);
|
1444 | eaa728ee | bellard | stl_phys(sm_state + 0x7f70, env->gdt.limit);
|
1445 | eaa728ee | bellard | |
1446 | eaa728ee | bellard | stl_phys(sm_state + 0x7f58, env->idt.base);
|
1447 | eaa728ee | bellard | stl_phys(sm_state + 0x7f54, env->idt.limit);
|
1448 | eaa728ee | bellard | |
1449 | eaa728ee | bellard | for(i = 0; i < 6; i++) { |
1450 | eaa728ee | bellard | dt = &env->segs[i]; |
1451 | eaa728ee | bellard | if (i < 3) |
1452 | eaa728ee | bellard | offset = 0x7f84 + i * 12; |
1453 | eaa728ee | bellard | else
|
1454 | eaa728ee | bellard | offset = 0x7f2c + (i - 3) * 12; |
1455 | eaa728ee | bellard | stl_phys(sm_state + 0x7fa8 + i * 4, dt->selector); |
1456 | eaa728ee | bellard | stl_phys(sm_state + offset + 8, dt->base);
|
1457 | eaa728ee | bellard | stl_phys(sm_state + offset + 4, dt->limit);
|
1458 | eaa728ee | bellard | stl_phys(sm_state + offset, (dt->flags >> 8) & 0xf0ff); |
1459 | eaa728ee | bellard | } |
1460 | eaa728ee | bellard | stl_phys(sm_state + 0x7f14, env->cr[4]); |
1461 | eaa728ee | bellard | |
1462 | eaa728ee | bellard | stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
|
1463 | eaa728ee | bellard | stl_phys(sm_state + 0x7ef8, env->smbase);
|
1464 | eaa728ee | bellard | #endif
|
1465 | eaa728ee | bellard | /* init SMM cpu state */
|
1466 | eaa728ee | bellard | |
1467 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1468 | 5efc27bb | bellard | cpu_load_efer(env, 0);
|
1469 | eaa728ee | bellard | #endif
|
1470 | eaa728ee | bellard | load_eflags(0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
|
1471 | eaa728ee | bellard | env->eip = 0x00008000;
|
1472 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase, |
1473 | eaa728ee | bellard | 0xffffffff, 0); |
1474 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff, 0); |
1475 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff, 0); |
1476 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff, 0); |
1477 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff, 0); |
1478 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff, 0); |
1479 | eaa728ee | bellard | |
1480 | eaa728ee | bellard | cpu_x86_update_cr0(env, |
1481 | eaa728ee | bellard | env->cr[0] & ~(CR0_PE_MASK | CR0_EM_MASK | CR0_TS_MASK | CR0_PG_MASK));
|
1482 | eaa728ee | bellard | cpu_x86_update_cr4(env, 0);
|
1483 | eaa728ee | bellard | env->dr[7] = 0x00000400; |
1484 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
1485 | eaa728ee | bellard | } |
1486 | eaa728ee | bellard | |
1487 | eaa728ee | bellard | void helper_rsm(void) |
1488 | eaa728ee | bellard | { |
1489 | eaa728ee | bellard | target_ulong sm_state; |
1490 | eaa728ee | bellard | int i, offset;
|
1491 | eaa728ee | bellard | uint32_t val; |
1492 | eaa728ee | bellard | |
1493 | eaa728ee | bellard | sm_state = env->smbase + 0x8000;
|
1494 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1495 | 5efc27bb | bellard | cpu_load_efer(env, ldq_phys(sm_state + 0x7ed0));
|
1496 | eaa728ee | bellard | |
1497 | eaa728ee | bellard | for(i = 0; i < 6; i++) { |
1498 | eaa728ee | bellard | offset = 0x7e00 + i * 16; |
1499 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, i, |
1500 | eaa728ee | bellard | lduw_phys(sm_state + offset), |
1501 | eaa728ee | bellard | ldq_phys(sm_state + offset + 8),
|
1502 | eaa728ee | bellard | ldl_phys(sm_state + offset + 4),
|
1503 | eaa728ee | bellard | (lduw_phys(sm_state + offset + 2) & 0xf0ff) << 8); |
1504 | eaa728ee | bellard | } |
1505 | eaa728ee | bellard | |
1506 | eaa728ee | bellard | env->gdt.base = ldq_phys(sm_state + 0x7e68);
|
1507 | eaa728ee | bellard | env->gdt.limit = ldl_phys(sm_state + 0x7e64);
|
1508 | eaa728ee | bellard | |
1509 | eaa728ee | bellard | env->ldt.selector = lduw_phys(sm_state + 0x7e70);
|
1510 | eaa728ee | bellard | env->ldt.base = ldq_phys(sm_state + 0x7e78);
|
1511 | eaa728ee | bellard | env->ldt.limit = ldl_phys(sm_state + 0x7e74);
|
1512 | eaa728ee | bellard | env->ldt.flags = (lduw_phys(sm_state + 0x7e72) & 0xf0ff) << 8; |
1513 | eaa728ee | bellard | |
1514 | eaa728ee | bellard | env->idt.base = ldq_phys(sm_state + 0x7e88);
|
1515 | eaa728ee | bellard | env->idt.limit = ldl_phys(sm_state + 0x7e84);
|
1516 | eaa728ee | bellard | |
1517 | eaa728ee | bellard | env->tr.selector = lduw_phys(sm_state + 0x7e90);
|
1518 | eaa728ee | bellard | env->tr.base = ldq_phys(sm_state + 0x7e98);
|
1519 | eaa728ee | bellard | env->tr.limit = ldl_phys(sm_state + 0x7e94);
|
1520 | eaa728ee | bellard | env->tr.flags = (lduw_phys(sm_state + 0x7e92) & 0xf0ff) << 8; |
1521 | eaa728ee | bellard | |
1522 | eaa728ee | bellard | EAX = ldq_phys(sm_state + 0x7ff8);
|
1523 | eaa728ee | bellard | ECX = ldq_phys(sm_state + 0x7ff0);
|
1524 | eaa728ee | bellard | EDX = ldq_phys(sm_state + 0x7fe8);
|
1525 | eaa728ee | bellard | EBX = ldq_phys(sm_state + 0x7fe0);
|
1526 | eaa728ee | bellard | ESP = ldq_phys(sm_state + 0x7fd8);
|
1527 | eaa728ee | bellard | EBP = ldq_phys(sm_state + 0x7fd0);
|
1528 | eaa728ee | bellard | ESI = ldq_phys(sm_state + 0x7fc8);
|
1529 | eaa728ee | bellard | EDI = ldq_phys(sm_state + 0x7fc0);
|
1530 | eaa728ee | bellard | for(i = 8; i < 16; i++) |
1531 | eaa728ee | bellard | env->regs[i] = ldq_phys(sm_state + 0x7ff8 - i * 8); |
1532 | eaa728ee | bellard | env->eip = ldq_phys(sm_state + 0x7f78);
|
1533 | eaa728ee | bellard | load_eflags(ldl_phys(sm_state + 0x7f70),
|
1534 | eaa728ee | bellard | ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK)); |
1535 | eaa728ee | bellard | env->dr[6] = ldl_phys(sm_state + 0x7f68); |
1536 | eaa728ee | bellard | env->dr[7] = ldl_phys(sm_state + 0x7f60); |
1537 | eaa728ee | bellard | |
1538 | eaa728ee | bellard | cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f48));
|
1539 | eaa728ee | bellard | cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7f50));
|
1540 | eaa728ee | bellard | cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7f58));
|
1541 | eaa728ee | bellard | |
1542 | eaa728ee | bellard | val = ldl_phys(sm_state + 0x7efc); /* revision ID */ |
1543 | eaa728ee | bellard | if (val & 0x20000) { |
1544 | eaa728ee | bellard | env->smbase = ldl_phys(sm_state + 0x7f00) & ~0x7fff; |
1545 | eaa728ee | bellard | } |
1546 | eaa728ee | bellard | #else
|
1547 | eaa728ee | bellard | cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7ffc));
|
1548 | eaa728ee | bellard | cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7ff8));
|
1549 | eaa728ee | bellard | load_eflags(ldl_phys(sm_state + 0x7ff4),
|
1550 | eaa728ee | bellard | ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK)); |
1551 | eaa728ee | bellard | env->eip = ldl_phys(sm_state + 0x7ff0);
|
1552 | eaa728ee | bellard | EDI = ldl_phys(sm_state + 0x7fec);
|
1553 | eaa728ee | bellard | ESI = ldl_phys(sm_state + 0x7fe8);
|
1554 | eaa728ee | bellard | EBP = ldl_phys(sm_state + 0x7fe4);
|
1555 | eaa728ee | bellard | ESP = ldl_phys(sm_state + 0x7fe0);
|
1556 | eaa728ee | bellard | EBX = ldl_phys(sm_state + 0x7fdc);
|
1557 | eaa728ee | bellard | EDX = ldl_phys(sm_state + 0x7fd8);
|
1558 | eaa728ee | bellard | ECX = ldl_phys(sm_state + 0x7fd4);
|
1559 | eaa728ee | bellard | EAX = ldl_phys(sm_state + 0x7fd0);
|
1560 | eaa728ee | bellard | env->dr[6] = ldl_phys(sm_state + 0x7fcc); |
1561 | eaa728ee | bellard | env->dr[7] = ldl_phys(sm_state + 0x7fc8); |
1562 | eaa728ee | bellard | |
1563 | eaa728ee | bellard | env->tr.selector = ldl_phys(sm_state + 0x7fc4) & 0xffff; |
1564 | eaa728ee | bellard | env->tr.base = ldl_phys(sm_state + 0x7f64);
|
1565 | eaa728ee | bellard | env->tr.limit = ldl_phys(sm_state + 0x7f60);
|
1566 | eaa728ee | bellard | env->tr.flags = (ldl_phys(sm_state + 0x7f5c) & 0xf0ff) << 8; |
1567 | eaa728ee | bellard | |
1568 | eaa728ee | bellard | env->ldt.selector = ldl_phys(sm_state + 0x7fc0) & 0xffff; |
1569 | eaa728ee | bellard | env->ldt.base = ldl_phys(sm_state + 0x7f80);
|
1570 | eaa728ee | bellard | env->ldt.limit = ldl_phys(sm_state + 0x7f7c);
|
1571 | eaa728ee | bellard | env->ldt.flags = (ldl_phys(sm_state + 0x7f78) & 0xf0ff) << 8; |
1572 | eaa728ee | bellard | |
1573 | eaa728ee | bellard | env->gdt.base = ldl_phys(sm_state + 0x7f74);
|
1574 | eaa728ee | bellard | env->gdt.limit = ldl_phys(sm_state + 0x7f70);
|
1575 | eaa728ee | bellard | |
1576 | eaa728ee | bellard | env->idt.base = ldl_phys(sm_state + 0x7f58);
|
1577 | eaa728ee | bellard | env->idt.limit = ldl_phys(sm_state + 0x7f54);
|
1578 | eaa728ee | bellard | |
1579 | eaa728ee | bellard | for(i = 0; i < 6; i++) { |
1580 | eaa728ee | bellard | if (i < 3) |
1581 | eaa728ee | bellard | offset = 0x7f84 + i * 12; |
1582 | eaa728ee | bellard | else
|
1583 | eaa728ee | bellard | offset = 0x7f2c + (i - 3) * 12; |
1584 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, i, |
1585 | eaa728ee | bellard | ldl_phys(sm_state + 0x7fa8 + i * 4) & 0xffff, |
1586 | eaa728ee | bellard | ldl_phys(sm_state + offset + 8),
|
1587 | eaa728ee | bellard | ldl_phys(sm_state + offset + 4),
|
1588 | eaa728ee | bellard | (ldl_phys(sm_state + offset) & 0xf0ff) << 8); |
1589 | eaa728ee | bellard | } |
1590 | eaa728ee | bellard | cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f14));
|
1591 | eaa728ee | bellard | |
1592 | eaa728ee | bellard | val = ldl_phys(sm_state + 0x7efc); /* revision ID */ |
1593 | eaa728ee | bellard | if (val & 0x20000) { |
1594 | eaa728ee | bellard | env->smbase = ldl_phys(sm_state + 0x7ef8) & ~0x7fff; |
1595 | eaa728ee | bellard | } |
1596 | eaa728ee | bellard | #endif
|
1597 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
1598 | eaa728ee | bellard | env->hflags &= ~HF_SMM_MASK; |
1599 | eaa728ee | bellard | cpu_smm_update(env); |
1600 | eaa728ee | bellard | |
1601 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_INT, "SMM: after RSM\n");
|
1602 | 93fcfe39 | aliguori | log_cpu_state_mask(CPU_LOG_INT, env, X86_DUMP_CCOP); |
1603 | eaa728ee | bellard | } |
1604 | eaa728ee | bellard | |
1605 | eaa728ee | bellard | #endif /* !CONFIG_USER_ONLY */ |
1606 | eaa728ee | bellard | |
1607 | eaa728ee | bellard | |
1608 | eaa728ee | bellard | /* division, flags are undefined */
|
1609 | eaa728ee | bellard | |
1610 | eaa728ee | bellard | void helper_divb_AL(target_ulong t0)
|
1611 | eaa728ee | bellard | { |
1612 | eaa728ee | bellard | unsigned int num, den, q, r; |
1613 | eaa728ee | bellard | |
1614 | eaa728ee | bellard | num = (EAX & 0xffff);
|
1615 | eaa728ee | bellard | den = (t0 & 0xff);
|
1616 | eaa728ee | bellard | if (den == 0) { |
1617 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1618 | eaa728ee | bellard | } |
1619 | eaa728ee | bellard | q = (num / den); |
1620 | eaa728ee | bellard | if (q > 0xff) |
1621 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1622 | eaa728ee | bellard | q &= 0xff;
|
1623 | eaa728ee | bellard | r = (num % den) & 0xff;
|
1624 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | (r << 8) | q; |
1625 | eaa728ee | bellard | } |
1626 | eaa728ee | bellard | |
1627 | eaa728ee | bellard | void helper_idivb_AL(target_ulong t0)
|
1628 | eaa728ee | bellard | { |
1629 | eaa728ee | bellard | int num, den, q, r;
|
1630 | eaa728ee | bellard | |
1631 | eaa728ee | bellard | num = (int16_t)EAX; |
1632 | eaa728ee | bellard | den = (int8_t)t0; |
1633 | eaa728ee | bellard | if (den == 0) { |
1634 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1635 | eaa728ee | bellard | } |
1636 | eaa728ee | bellard | q = (num / den); |
1637 | eaa728ee | bellard | if (q != (int8_t)q)
|
1638 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1639 | eaa728ee | bellard | q &= 0xff;
|
1640 | eaa728ee | bellard | r = (num % den) & 0xff;
|
1641 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | (r << 8) | q; |
1642 | eaa728ee | bellard | } |
1643 | eaa728ee | bellard | |
1644 | eaa728ee | bellard | void helper_divw_AX(target_ulong t0)
|
1645 | eaa728ee | bellard | { |
1646 | eaa728ee | bellard | unsigned int num, den, q, r; |
1647 | eaa728ee | bellard | |
1648 | eaa728ee | bellard | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); |
1649 | eaa728ee | bellard | den = (t0 & 0xffff);
|
1650 | eaa728ee | bellard | if (den == 0) { |
1651 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1652 | eaa728ee | bellard | } |
1653 | eaa728ee | bellard | q = (num / den); |
1654 | eaa728ee | bellard | if (q > 0xffff) |
1655 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1656 | eaa728ee | bellard | q &= 0xffff;
|
1657 | eaa728ee | bellard | r = (num % den) & 0xffff;
|
1658 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | q;
|
1659 | eaa728ee | bellard | EDX = (EDX & ~0xffff) | r;
|
1660 | eaa728ee | bellard | } |
1661 | eaa728ee | bellard | |
1662 | eaa728ee | bellard | void helper_idivw_AX(target_ulong t0)
|
1663 | eaa728ee | bellard | { |
1664 | eaa728ee | bellard | int num, den, q, r;
|
1665 | eaa728ee | bellard | |
1666 | eaa728ee | bellard | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); |
1667 | eaa728ee | bellard | den = (int16_t)t0; |
1668 | eaa728ee | bellard | if (den == 0) { |
1669 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1670 | eaa728ee | bellard | } |
1671 | eaa728ee | bellard | q = (num / den); |
1672 | eaa728ee | bellard | if (q != (int16_t)q)
|
1673 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1674 | eaa728ee | bellard | q &= 0xffff;
|
1675 | eaa728ee | bellard | r = (num % den) & 0xffff;
|
1676 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | q;
|
1677 | eaa728ee | bellard | EDX = (EDX & ~0xffff) | r;
|
1678 | eaa728ee | bellard | } |
1679 | eaa728ee | bellard | |
1680 | eaa728ee | bellard | void helper_divl_EAX(target_ulong t0)
|
1681 | eaa728ee | bellard | { |
1682 | eaa728ee | bellard | unsigned int den, r; |
1683 | eaa728ee | bellard | uint64_t num, q; |
1684 | eaa728ee | bellard | |
1685 | eaa728ee | bellard | num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
|
1686 | eaa728ee | bellard | den = t0; |
1687 | eaa728ee | bellard | if (den == 0) { |
1688 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1689 | eaa728ee | bellard | } |
1690 | eaa728ee | bellard | q = (num / den); |
1691 | eaa728ee | bellard | r = (num % den); |
1692 | eaa728ee | bellard | if (q > 0xffffffff) |
1693 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1694 | eaa728ee | bellard | EAX = (uint32_t)q; |
1695 | eaa728ee | bellard | EDX = (uint32_t)r; |
1696 | eaa728ee | bellard | } |
1697 | eaa728ee | bellard | |
1698 | eaa728ee | bellard | void helper_idivl_EAX(target_ulong t0)
|
1699 | eaa728ee | bellard | { |
1700 | eaa728ee | bellard | int den, r;
|
1701 | eaa728ee | bellard | int64_t num, q; |
1702 | eaa728ee | bellard | |
1703 | eaa728ee | bellard | num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
|
1704 | eaa728ee | bellard | den = t0; |
1705 | eaa728ee | bellard | if (den == 0) { |
1706 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1707 | eaa728ee | bellard | } |
1708 | eaa728ee | bellard | q = (num / den); |
1709 | eaa728ee | bellard | r = (num % den); |
1710 | eaa728ee | bellard | if (q != (int32_t)q)
|
1711 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
1712 | eaa728ee | bellard | EAX = (uint32_t)q; |
1713 | eaa728ee | bellard | EDX = (uint32_t)r; |
1714 | eaa728ee | bellard | } |
1715 | eaa728ee | bellard | |
1716 | eaa728ee | bellard | /* bcd */
|
1717 | eaa728ee | bellard | |
1718 | eaa728ee | bellard | /* XXX: exception */
|
1719 | eaa728ee | bellard | void helper_aam(int base) |
1720 | eaa728ee | bellard | { |
1721 | eaa728ee | bellard | int al, ah;
|
1722 | eaa728ee | bellard | al = EAX & 0xff;
|
1723 | eaa728ee | bellard | ah = al / base; |
1724 | eaa728ee | bellard | al = al % base; |
1725 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | al | (ah << 8); |
1726 | eaa728ee | bellard | CC_DST = al; |
1727 | eaa728ee | bellard | } |
1728 | eaa728ee | bellard | |
1729 | eaa728ee | bellard | void helper_aad(int base) |
1730 | eaa728ee | bellard | { |
1731 | eaa728ee | bellard | int al, ah;
|
1732 | eaa728ee | bellard | al = EAX & 0xff;
|
1733 | eaa728ee | bellard | ah = (EAX >> 8) & 0xff; |
1734 | eaa728ee | bellard | al = ((ah * base) + al) & 0xff;
|
1735 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | al;
|
1736 | eaa728ee | bellard | CC_DST = al; |
1737 | eaa728ee | bellard | } |
1738 | eaa728ee | bellard | |
1739 | eaa728ee | bellard | void helper_aaa(void) |
1740 | eaa728ee | bellard | { |
1741 | eaa728ee | bellard | int icarry;
|
1742 | eaa728ee | bellard | int al, ah, af;
|
1743 | eaa728ee | bellard | int eflags;
|
1744 | eaa728ee | bellard | |
1745 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1746 | eaa728ee | bellard | af = eflags & CC_A; |
1747 | eaa728ee | bellard | al = EAX & 0xff;
|
1748 | eaa728ee | bellard | ah = (EAX >> 8) & 0xff; |
1749 | eaa728ee | bellard | |
1750 | eaa728ee | bellard | icarry = (al > 0xf9);
|
1751 | eaa728ee | bellard | if (((al & 0x0f) > 9 ) || af) { |
1752 | eaa728ee | bellard | al = (al + 6) & 0x0f; |
1753 | eaa728ee | bellard | ah = (ah + 1 + icarry) & 0xff; |
1754 | eaa728ee | bellard | eflags |= CC_C | CC_A; |
1755 | eaa728ee | bellard | } else {
|
1756 | eaa728ee | bellard | eflags &= ~(CC_C | CC_A); |
1757 | eaa728ee | bellard | al &= 0x0f;
|
1758 | eaa728ee | bellard | } |
1759 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | al | (ah << 8); |
1760 | eaa728ee | bellard | CC_SRC = eflags; |
1761 | eaa728ee | bellard | } |
1762 | eaa728ee | bellard | |
1763 | eaa728ee | bellard | void helper_aas(void) |
1764 | eaa728ee | bellard | { |
1765 | eaa728ee | bellard | int icarry;
|
1766 | eaa728ee | bellard | int al, ah, af;
|
1767 | eaa728ee | bellard | int eflags;
|
1768 | eaa728ee | bellard | |
1769 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1770 | eaa728ee | bellard | af = eflags & CC_A; |
1771 | eaa728ee | bellard | al = EAX & 0xff;
|
1772 | eaa728ee | bellard | ah = (EAX >> 8) & 0xff; |
1773 | eaa728ee | bellard | |
1774 | eaa728ee | bellard | icarry = (al < 6);
|
1775 | eaa728ee | bellard | if (((al & 0x0f) > 9 ) || af) { |
1776 | eaa728ee | bellard | al = (al - 6) & 0x0f; |
1777 | eaa728ee | bellard | ah = (ah - 1 - icarry) & 0xff; |
1778 | eaa728ee | bellard | eflags |= CC_C | CC_A; |
1779 | eaa728ee | bellard | } else {
|
1780 | eaa728ee | bellard | eflags &= ~(CC_C | CC_A); |
1781 | eaa728ee | bellard | al &= 0x0f;
|
1782 | eaa728ee | bellard | } |
1783 | eaa728ee | bellard | EAX = (EAX & ~0xffff) | al | (ah << 8); |
1784 | eaa728ee | bellard | CC_SRC = eflags; |
1785 | eaa728ee | bellard | } |
1786 | eaa728ee | bellard | |
1787 | eaa728ee | bellard | void helper_daa(void) |
1788 | eaa728ee | bellard | { |
1789 | eaa728ee | bellard | int al, af, cf;
|
1790 | eaa728ee | bellard | int eflags;
|
1791 | eaa728ee | bellard | |
1792 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1793 | eaa728ee | bellard | cf = eflags & CC_C; |
1794 | eaa728ee | bellard | af = eflags & CC_A; |
1795 | eaa728ee | bellard | al = EAX & 0xff;
|
1796 | eaa728ee | bellard | |
1797 | eaa728ee | bellard | eflags = 0;
|
1798 | eaa728ee | bellard | if (((al & 0x0f) > 9 ) || af) { |
1799 | eaa728ee | bellard | al = (al + 6) & 0xff; |
1800 | eaa728ee | bellard | eflags |= CC_A; |
1801 | eaa728ee | bellard | } |
1802 | eaa728ee | bellard | if ((al > 0x9f) || cf) { |
1803 | eaa728ee | bellard | al = (al + 0x60) & 0xff; |
1804 | eaa728ee | bellard | eflags |= CC_C; |
1805 | eaa728ee | bellard | } |
1806 | eaa728ee | bellard | EAX = (EAX & ~0xff) | al;
|
1807 | eaa728ee | bellard | /* well, speed is not an issue here, so we compute the flags by hand */
|
1808 | eaa728ee | bellard | eflags |= (al == 0) << 6; /* zf */ |
1809 | eaa728ee | bellard | eflags |= parity_table[al]; /* pf */
|
1810 | eaa728ee | bellard | eflags |= (al & 0x80); /* sf */ |
1811 | eaa728ee | bellard | CC_SRC = eflags; |
1812 | eaa728ee | bellard | } |
1813 | eaa728ee | bellard | |
1814 | eaa728ee | bellard | void helper_das(void) |
1815 | eaa728ee | bellard | { |
1816 | eaa728ee | bellard | int al, al1, af, cf;
|
1817 | eaa728ee | bellard | int eflags;
|
1818 | eaa728ee | bellard | |
1819 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1820 | eaa728ee | bellard | cf = eflags & CC_C; |
1821 | eaa728ee | bellard | af = eflags & CC_A; |
1822 | eaa728ee | bellard | al = EAX & 0xff;
|
1823 | eaa728ee | bellard | |
1824 | eaa728ee | bellard | eflags = 0;
|
1825 | eaa728ee | bellard | al1 = al; |
1826 | eaa728ee | bellard | if (((al & 0x0f) > 9 ) || af) { |
1827 | eaa728ee | bellard | eflags |= CC_A; |
1828 | eaa728ee | bellard | if (al < 6 || cf) |
1829 | eaa728ee | bellard | eflags |= CC_C; |
1830 | eaa728ee | bellard | al = (al - 6) & 0xff; |
1831 | eaa728ee | bellard | } |
1832 | eaa728ee | bellard | if ((al1 > 0x99) || cf) { |
1833 | eaa728ee | bellard | al = (al - 0x60) & 0xff; |
1834 | eaa728ee | bellard | eflags |= CC_C; |
1835 | eaa728ee | bellard | } |
1836 | eaa728ee | bellard | EAX = (EAX & ~0xff) | al;
|
1837 | eaa728ee | bellard | /* well, speed is not an issue here, so we compute the flags by hand */
|
1838 | eaa728ee | bellard | eflags |= (al == 0) << 6; /* zf */ |
1839 | eaa728ee | bellard | eflags |= parity_table[al]; /* pf */
|
1840 | eaa728ee | bellard | eflags |= (al & 0x80); /* sf */ |
1841 | eaa728ee | bellard | CC_SRC = eflags; |
1842 | eaa728ee | bellard | } |
1843 | eaa728ee | bellard | |
1844 | eaa728ee | bellard | void helper_into(int next_eip_addend) |
1845 | eaa728ee | bellard | { |
1846 | eaa728ee | bellard | int eflags;
|
1847 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1848 | eaa728ee | bellard | if (eflags & CC_O) {
|
1849 | eaa728ee | bellard | raise_interrupt(EXCP04_INTO, 1, 0, next_eip_addend); |
1850 | eaa728ee | bellard | } |
1851 | eaa728ee | bellard | } |
1852 | eaa728ee | bellard | |
1853 | eaa728ee | bellard | void helper_cmpxchg8b(target_ulong a0)
|
1854 | eaa728ee | bellard | { |
1855 | eaa728ee | bellard | uint64_t d; |
1856 | eaa728ee | bellard | int eflags;
|
1857 | eaa728ee | bellard | |
1858 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1859 | eaa728ee | bellard | d = ldq(a0); |
1860 | eaa728ee | bellard | if (d == (((uint64_t)EDX << 32) | (uint32_t)EAX)) { |
1861 | eaa728ee | bellard | stq(a0, ((uint64_t)ECX << 32) | (uint32_t)EBX);
|
1862 | eaa728ee | bellard | eflags |= CC_Z; |
1863 | eaa728ee | bellard | } else {
|
1864 | 278ed7c3 | bellard | /* always do the store */
|
1865 | 278ed7c3 | bellard | stq(a0, d); |
1866 | eaa728ee | bellard | EDX = (uint32_t)(d >> 32);
|
1867 | eaa728ee | bellard | EAX = (uint32_t)d; |
1868 | eaa728ee | bellard | eflags &= ~CC_Z; |
1869 | eaa728ee | bellard | } |
1870 | eaa728ee | bellard | CC_SRC = eflags; |
1871 | eaa728ee | bellard | } |
1872 | eaa728ee | bellard | |
1873 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1874 | eaa728ee | bellard | void helper_cmpxchg16b(target_ulong a0)
|
1875 | eaa728ee | bellard | { |
1876 | eaa728ee | bellard | uint64_t d0, d1; |
1877 | eaa728ee | bellard | int eflags;
|
1878 | eaa728ee | bellard | |
1879 | 278ed7c3 | bellard | if ((a0 & 0xf) != 0) |
1880 | 278ed7c3 | bellard | raise_exception(EXCP0D_GPF); |
1881 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
1882 | eaa728ee | bellard | d0 = ldq(a0); |
1883 | eaa728ee | bellard | d1 = ldq(a0 + 8);
|
1884 | eaa728ee | bellard | if (d0 == EAX && d1 == EDX) {
|
1885 | eaa728ee | bellard | stq(a0, EBX); |
1886 | eaa728ee | bellard | stq(a0 + 8, ECX);
|
1887 | eaa728ee | bellard | eflags |= CC_Z; |
1888 | eaa728ee | bellard | } else {
|
1889 | 278ed7c3 | bellard | /* always do the store */
|
1890 | 278ed7c3 | bellard | stq(a0, d0); |
1891 | 278ed7c3 | bellard | stq(a0 + 8, d1);
|
1892 | eaa728ee | bellard | EDX = d1; |
1893 | eaa728ee | bellard | EAX = d0; |
1894 | eaa728ee | bellard | eflags &= ~CC_Z; |
1895 | eaa728ee | bellard | } |
1896 | eaa728ee | bellard | CC_SRC = eflags; |
1897 | eaa728ee | bellard | } |
1898 | eaa728ee | bellard | #endif
|
1899 | eaa728ee | bellard | |
1900 | eaa728ee | bellard | void helper_single_step(void) |
1901 | eaa728ee | bellard | { |
1902 | 01df040b | aliguori | #ifndef CONFIG_USER_ONLY
|
1903 | 01df040b | aliguori | check_hw_breakpoints(env, 1);
|
1904 | 01df040b | aliguori | env->dr[6] |= DR6_BS;
|
1905 | 01df040b | aliguori | #endif
|
1906 | 01df040b | aliguori | raise_exception(EXCP01_DB); |
1907 | eaa728ee | bellard | } |
1908 | eaa728ee | bellard | |
1909 | eaa728ee | bellard | void helper_cpuid(void) |
1910 | eaa728ee | bellard | { |
1911 | 6fd805e1 | aliguori | uint32_t eax, ebx, ecx, edx; |
1912 | eaa728ee | bellard | |
1913 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_CPUID, 0);
|
1914 | e737b32a | balrog | |
1915 | e00b6f80 | aliguori | cpu_x86_cpuid(env, (uint32_t)EAX, (uint32_t)ECX, &eax, &ebx, &ecx, &edx); |
1916 | 6fd805e1 | aliguori | EAX = eax; |
1917 | 6fd805e1 | aliguori | EBX = ebx; |
1918 | 6fd805e1 | aliguori | ECX = ecx; |
1919 | 6fd805e1 | aliguori | EDX = edx; |
1920 | eaa728ee | bellard | } |
1921 | eaa728ee | bellard | |
1922 | eaa728ee | bellard | void helper_enter_level(int level, int data32, target_ulong t1) |
1923 | eaa728ee | bellard | { |
1924 | eaa728ee | bellard | target_ulong ssp; |
1925 | eaa728ee | bellard | uint32_t esp_mask, esp, ebp; |
1926 | eaa728ee | bellard | |
1927 | eaa728ee | bellard | esp_mask = get_sp_mask(env->segs[R_SS].flags); |
1928 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
1929 | eaa728ee | bellard | ebp = EBP; |
1930 | eaa728ee | bellard | esp = ESP; |
1931 | eaa728ee | bellard | if (data32) {
|
1932 | eaa728ee | bellard | /* 32 bit */
|
1933 | eaa728ee | bellard | esp -= 4;
|
1934 | eaa728ee | bellard | while (--level) {
|
1935 | eaa728ee | bellard | esp -= 4;
|
1936 | eaa728ee | bellard | ebp -= 4;
|
1937 | eaa728ee | bellard | stl(ssp + (esp & esp_mask), ldl(ssp + (ebp & esp_mask))); |
1938 | eaa728ee | bellard | } |
1939 | eaa728ee | bellard | esp -= 4;
|
1940 | eaa728ee | bellard | stl(ssp + (esp & esp_mask), t1); |
1941 | eaa728ee | bellard | } else {
|
1942 | eaa728ee | bellard | /* 16 bit */
|
1943 | eaa728ee | bellard | esp -= 2;
|
1944 | eaa728ee | bellard | while (--level) {
|
1945 | eaa728ee | bellard | esp -= 2;
|
1946 | eaa728ee | bellard | ebp -= 2;
|
1947 | eaa728ee | bellard | stw(ssp + (esp & esp_mask), lduw(ssp + (ebp & esp_mask))); |
1948 | eaa728ee | bellard | } |
1949 | eaa728ee | bellard | esp -= 2;
|
1950 | eaa728ee | bellard | stw(ssp + (esp & esp_mask), t1); |
1951 | eaa728ee | bellard | } |
1952 | eaa728ee | bellard | } |
1953 | eaa728ee | bellard | |
1954 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
1955 | eaa728ee | bellard | void helper_enter64_level(int level, int data64, target_ulong t1) |
1956 | eaa728ee | bellard | { |
1957 | eaa728ee | bellard | target_ulong esp, ebp; |
1958 | eaa728ee | bellard | ebp = EBP; |
1959 | eaa728ee | bellard | esp = ESP; |
1960 | eaa728ee | bellard | |
1961 | eaa728ee | bellard | if (data64) {
|
1962 | eaa728ee | bellard | /* 64 bit */
|
1963 | eaa728ee | bellard | esp -= 8;
|
1964 | eaa728ee | bellard | while (--level) {
|
1965 | eaa728ee | bellard | esp -= 8;
|
1966 | eaa728ee | bellard | ebp -= 8;
|
1967 | eaa728ee | bellard | stq(esp, ldq(ebp)); |
1968 | eaa728ee | bellard | } |
1969 | eaa728ee | bellard | esp -= 8;
|
1970 | eaa728ee | bellard | stq(esp, t1); |
1971 | eaa728ee | bellard | } else {
|
1972 | eaa728ee | bellard | /* 16 bit */
|
1973 | eaa728ee | bellard | esp -= 2;
|
1974 | eaa728ee | bellard | while (--level) {
|
1975 | eaa728ee | bellard | esp -= 2;
|
1976 | eaa728ee | bellard | ebp -= 2;
|
1977 | eaa728ee | bellard | stw(esp, lduw(ebp)); |
1978 | eaa728ee | bellard | } |
1979 | eaa728ee | bellard | esp -= 2;
|
1980 | eaa728ee | bellard | stw(esp, t1); |
1981 | eaa728ee | bellard | } |
1982 | eaa728ee | bellard | } |
1983 | eaa728ee | bellard | #endif
|
1984 | eaa728ee | bellard | |
1985 | eaa728ee | bellard | void helper_lldt(int selector) |
1986 | eaa728ee | bellard | { |
1987 | eaa728ee | bellard | SegmentCache *dt; |
1988 | eaa728ee | bellard | uint32_t e1, e2; |
1989 | eaa728ee | bellard | int index, entry_limit;
|
1990 | eaa728ee | bellard | target_ulong ptr; |
1991 | eaa728ee | bellard | |
1992 | eaa728ee | bellard | selector &= 0xffff;
|
1993 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) { |
1994 | eaa728ee | bellard | /* XXX: NULL selector case: invalid LDT */
|
1995 | eaa728ee | bellard | env->ldt.base = 0;
|
1996 | eaa728ee | bellard | env->ldt.limit = 0;
|
1997 | eaa728ee | bellard | } else {
|
1998 | eaa728ee | bellard | if (selector & 0x4) |
1999 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2000 | eaa728ee | bellard | dt = &env->gdt; |
2001 | eaa728ee | bellard | index = selector & ~7;
|
2002 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2003 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK)
|
2004 | eaa728ee | bellard | entry_limit = 15;
|
2005 | eaa728ee | bellard | else
|
2006 | eaa728ee | bellard | #endif
|
2007 | eaa728ee | bellard | entry_limit = 7;
|
2008 | eaa728ee | bellard | if ((index + entry_limit) > dt->limit)
|
2009 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2010 | eaa728ee | bellard | ptr = dt->base + index; |
2011 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
2012 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
2013 | eaa728ee | bellard | if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2) |
2014 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2015 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2016 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
2017 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2018 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
2019 | eaa728ee | bellard | uint32_t e3; |
2020 | eaa728ee | bellard | e3 = ldl_kernel(ptr + 8);
|
2021 | eaa728ee | bellard | load_seg_cache_raw_dt(&env->ldt, e1, e2); |
2022 | eaa728ee | bellard | env->ldt.base |= (target_ulong)e3 << 32;
|
2023 | eaa728ee | bellard | } else
|
2024 | eaa728ee | bellard | #endif
|
2025 | eaa728ee | bellard | { |
2026 | eaa728ee | bellard | load_seg_cache_raw_dt(&env->ldt, e1, e2); |
2027 | eaa728ee | bellard | } |
2028 | eaa728ee | bellard | } |
2029 | eaa728ee | bellard | env->ldt.selector = selector; |
2030 | eaa728ee | bellard | } |
2031 | eaa728ee | bellard | |
2032 | eaa728ee | bellard | void helper_ltr(int selector) |
2033 | eaa728ee | bellard | { |
2034 | eaa728ee | bellard | SegmentCache *dt; |
2035 | eaa728ee | bellard | uint32_t e1, e2; |
2036 | eaa728ee | bellard | int index, type, entry_limit;
|
2037 | eaa728ee | bellard | target_ulong ptr; |
2038 | eaa728ee | bellard | |
2039 | eaa728ee | bellard | selector &= 0xffff;
|
2040 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) { |
2041 | eaa728ee | bellard | /* NULL selector case: invalid TR */
|
2042 | eaa728ee | bellard | env->tr.base = 0;
|
2043 | eaa728ee | bellard | env->tr.limit = 0;
|
2044 | eaa728ee | bellard | env->tr.flags = 0;
|
2045 | eaa728ee | bellard | } else {
|
2046 | eaa728ee | bellard | if (selector & 0x4) |
2047 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2048 | eaa728ee | bellard | dt = &env->gdt; |
2049 | eaa728ee | bellard | index = selector & ~7;
|
2050 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2051 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK)
|
2052 | eaa728ee | bellard | entry_limit = 15;
|
2053 | eaa728ee | bellard | else
|
2054 | eaa728ee | bellard | #endif
|
2055 | eaa728ee | bellard | entry_limit = 7;
|
2056 | eaa728ee | bellard | if ((index + entry_limit) > dt->limit)
|
2057 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2058 | eaa728ee | bellard | ptr = dt->base + index; |
2059 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
2060 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
2061 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
|
2062 | eaa728ee | bellard | if ((e2 & DESC_S_MASK) ||
|
2063 | eaa728ee | bellard | (type != 1 && type != 9)) |
2064 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2065 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2066 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
2067 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2068 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK) {
|
2069 | eaa728ee | bellard | uint32_t e3, e4; |
2070 | eaa728ee | bellard | e3 = ldl_kernel(ptr + 8);
|
2071 | eaa728ee | bellard | e4 = ldl_kernel(ptr + 12);
|
2072 | eaa728ee | bellard | if ((e4 >> DESC_TYPE_SHIFT) & 0xf) |
2073 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2074 | eaa728ee | bellard | load_seg_cache_raw_dt(&env->tr, e1, e2); |
2075 | eaa728ee | bellard | env->tr.base |= (target_ulong)e3 << 32;
|
2076 | eaa728ee | bellard | } else
|
2077 | eaa728ee | bellard | #endif
|
2078 | eaa728ee | bellard | { |
2079 | eaa728ee | bellard | load_seg_cache_raw_dt(&env->tr, e1, e2); |
2080 | eaa728ee | bellard | } |
2081 | eaa728ee | bellard | e2 |= DESC_TSS_BUSY_MASK; |
2082 | eaa728ee | bellard | stl_kernel(ptr + 4, e2);
|
2083 | eaa728ee | bellard | } |
2084 | eaa728ee | bellard | env->tr.selector = selector; |
2085 | eaa728ee | bellard | } |
2086 | eaa728ee | bellard | |
2087 | eaa728ee | bellard | /* only works if protected mode and not VM86. seg_reg must be != R_CS */
|
2088 | eaa728ee | bellard | void helper_load_seg(int seg_reg, int selector) |
2089 | eaa728ee | bellard | { |
2090 | eaa728ee | bellard | uint32_t e1, e2; |
2091 | eaa728ee | bellard | int cpl, dpl, rpl;
|
2092 | eaa728ee | bellard | SegmentCache *dt; |
2093 | eaa728ee | bellard | int index;
|
2094 | eaa728ee | bellard | target_ulong ptr; |
2095 | eaa728ee | bellard | |
2096 | eaa728ee | bellard | selector &= 0xffff;
|
2097 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2098 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) { |
2099 | eaa728ee | bellard | /* null selector case */
|
2100 | eaa728ee | bellard | if (seg_reg == R_SS
|
2101 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2102 | eaa728ee | bellard | && (!(env->hflags & HF_CS64_MASK) || cpl == 3)
|
2103 | eaa728ee | bellard | #endif
|
2104 | eaa728ee | bellard | ) |
2105 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2106 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0); |
2107 | eaa728ee | bellard | } else {
|
2108 | eaa728ee | bellard | |
2109 | eaa728ee | bellard | if (selector & 0x4) |
2110 | eaa728ee | bellard | dt = &env->ldt; |
2111 | eaa728ee | bellard | else
|
2112 | eaa728ee | bellard | dt = &env->gdt; |
2113 | eaa728ee | bellard | index = selector & ~7;
|
2114 | eaa728ee | bellard | if ((index + 7) > dt->limit) |
2115 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2116 | eaa728ee | bellard | ptr = dt->base + index; |
2117 | eaa728ee | bellard | e1 = ldl_kernel(ptr); |
2118 | eaa728ee | bellard | e2 = ldl_kernel(ptr + 4);
|
2119 | eaa728ee | bellard | |
2120 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK))
|
2121 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2122 | eaa728ee | bellard | rpl = selector & 3;
|
2123 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2124 | eaa728ee | bellard | if (seg_reg == R_SS) {
|
2125 | eaa728ee | bellard | /* must be writable segment */
|
2126 | eaa728ee | bellard | if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
|
2127 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2128 | eaa728ee | bellard | if (rpl != cpl || dpl != cpl)
|
2129 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2130 | eaa728ee | bellard | } else {
|
2131 | eaa728ee | bellard | /* must be readable segment */
|
2132 | eaa728ee | bellard | if ((e2 & (DESC_CS_MASK | DESC_R_MASK)) == DESC_CS_MASK)
|
2133 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2134 | eaa728ee | bellard | |
2135 | eaa728ee | bellard | if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
|
2136 | eaa728ee | bellard | /* if not conforming code, test rights */
|
2137 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
2138 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2139 | eaa728ee | bellard | } |
2140 | eaa728ee | bellard | } |
2141 | eaa728ee | bellard | |
2142 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK)) {
|
2143 | eaa728ee | bellard | if (seg_reg == R_SS)
|
2144 | eaa728ee | bellard | raise_exception_err(EXCP0C_STACK, selector & 0xfffc);
|
2145 | eaa728ee | bellard | else
|
2146 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
2147 | eaa728ee | bellard | } |
2148 | eaa728ee | bellard | |
2149 | eaa728ee | bellard | /* set the access bit if not already set */
|
2150 | eaa728ee | bellard | if (!(e2 & DESC_A_MASK)) {
|
2151 | eaa728ee | bellard | e2 |= DESC_A_MASK; |
2152 | eaa728ee | bellard | stl_kernel(ptr + 4, e2);
|
2153 | eaa728ee | bellard | } |
2154 | eaa728ee | bellard | |
2155 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, seg_reg, selector, |
2156 | eaa728ee | bellard | get_seg_base(e1, e2), |
2157 | eaa728ee | bellard | get_seg_limit(e1, e2), |
2158 | eaa728ee | bellard | e2); |
2159 | eaa728ee | bellard | #if 0
|
2160 | 93fcfe39 | aliguori | qemu_log("load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n",
|
2161 | eaa728ee | bellard | selector, (unsigned long)sc->base, sc->limit, sc->flags);
|
2162 | eaa728ee | bellard | #endif
|
2163 | eaa728ee | bellard | } |
2164 | eaa728ee | bellard | } |
2165 | eaa728ee | bellard | |
2166 | eaa728ee | bellard | /* protected mode jump */
|
2167 | eaa728ee | bellard | void helper_ljmp_protected(int new_cs, target_ulong new_eip, |
2168 | eaa728ee | bellard | int next_eip_addend)
|
2169 | eaa728ee | bellard | { |
2170 | eaa728ee | bellard | int gate_cs, type;
|
2171 | eaa728ee | bellard | uint32_t e1, e2, cpl, dpl, rpl, limit; |
2172 | eaa728ee | bellard | target_ulong next_eip; |
2173 | eaa728ee | bellard | |
2174 | eaa728ee | bellard | if ((new_cs & 0xfffc) == 0) |
2175 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2176 | eaa728ee | bellard | if (load_segment(&e1, &e2, new_cs) != 0) |
2177 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2178 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2179 | eaa728ee | bellard | if (e2 & DESC_S_MASK) {
|
2180 | eaa728ee | bellard | if (!(e2 & DESC_CS_MASK))
|
2181 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2182 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2183 | eaa728ee | bellard | if (e2 & DESC_C_MASK) {
|
2184 | eaa728ee | bellard | /* conforming code segment */
|
2185 | eaa728ee | bellard | if (dpl > cpl)
|
2186 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2187 | eaa728ee | bellard | } else {
|
2188 | eaa728ee | bellard | /* non conforming code segment */
|
2189 | eaa728ee | bellard | rpl = new_cs & 3;
|
2190 | eaa728ee | bellard | if (rpl > cpl)
|
2191 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2192 | eaa728ee | bellard | if (dpl != cpl)
|
2193 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2194 | eaa728ee | bellard | } |
2195 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2196 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
|
2197 | eaa728ee | bellard | limit = get_seg_limit(e1, e2); |
2198 | eaa728ee | bellard | if (new_eip > limit &&
|
2199 | eaa728ee | bellard | !(env->hflags & HF_LMA_MASK) && !(e2 & DESC_L_MASK)) |
2200 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2201 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
|
2202 | eaa728ee | bellard | get_seg_base(e1, e2), limit, e2); |
2203 | eaa728ee | bellard | EIP = new_eip; |
2204 | eaa728ee | bellard | } else {
|
2205 | eaa728ee | bellard | /* jump to call or task gate */
|
2206 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2207 | eaa728ee | bellard | rpl = new_cs & 3;
|
2208 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2209 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
|
2210 | eaa728ee | bellard | switch(type) {
|
2211 | eaa728ee | bellard | case 1: /* 286 TSS */ |
2212 | eaa728ee | bellard | case 9: /* 386 TSS */ |
2213 | eaa728ee | bellard | case 5: /* task gate */ |
2214 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
2215 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2216 | eaa728ee | bellard | next_eip = env->eip + next_eip_addend; |
2217 | eaa728ee | bellard | switch_tss(new_cs, e1, e2, SWITCH_TSS_JMP, next_eip); |
2218 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
2219 | eaa728ee | bellard | break;
|
2220 | eaa728ee | bellard | case 4: /* 286 call gate */ |
2221 | eaa728ee | bellard | case 12: /* 386 call gate */ |
2222 | eaa728ee | bellard | if ((dpl < cpl) || (dpl < rpl))
|
2223 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2224 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2225 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
|
2226 | eaa728ee | bellard | gate_cs = e1 >> 16;
|
2227 | eaa728ee | bellard | new_eip = (e1 & 0xffff);
|
2228 | eaa728ee | bellard | if (type == 12) |
2229 | eaa728ee | bellard | new_eip |= (e2 & 0xffff0000);
|
2230 | eaa728ee | bellard | if (load_segment(&e1, &e2, gate_cs) != 0) |
2231 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
|
2232 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2233 | eaa728ee | bellard | /* must be code segment */
|
2234 | eaa728ee | bellard | if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) !=
|
2235 | eaa728ee | bellard | (DESC_S_MASK | DESC_CS_MASK))) |
2236 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
|
2237 | eaa728ee | bellard | if (((e2 & DESC_C_MASK) && (dpl > cpl)) ||
|
2238 | eaa728ee | bellard | (!(e2 & DESC_C_MASK) && (dpl != cpl))) |
2239 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
|
2240 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2241 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
|
2242 | eaa728ee | bellard | limit = get_seg_limit(e1, e2); |
2243 | eaa728ee | bellard | if (new_eip > limit)
|
2244 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2245 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (gate_cs & 0xfffc) | cpl,
|
2246 | eaa728ee | bellard | get_seg_base(e1, e2), limit, e2); |
2247 | eaa728ee | bellard | EIP = new_eip; |
2248 | eaa728ee | bellard | break;
|
2249 | eaa728ee | bellard | default:
|
2250 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2251 | eaa728ee | bellard | break;
|
2252 | eaa728ee | bellard | } |
2253 | eaa728ee | bellard | } |
2254 | eaa728ee | bellard | } |
2255 | eaa728ee | bellard | |
2256 | eaa728ee | bellard | /* real mode call */
|
2257 | eaa728ee | bellard | void helper_lcall_real(int new_cs, target_ulong new_eip1, |
2258 | eaa728ee | bellard | int shift, int next_eip) |
2259 | eaa728ee | bellard | { |
2260 | eaa728ee | bellard | int new_eip;
|
2261 | eaa728ee | bellard | uint32_t esp, esp_mask; |
2262 | eaa728ee | bellard | target_ulong ssp; |
2263 | eaa728ee | bellard | |
2264 | eaa728ee | bellard | new_eip = new_eip1; |
2265 | eaa728ee | bellard | esp = ESP; |
2266 | eaa728ee | bellard | esp_mask = get_sp_mask(env->segs[R_SS].flags); |
2267 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
2268 | eaa728ee | bellard | if (shift) {
|
2269 | eaa728ee | bellard | PUSHL(ssp, esp, esp_mask, env->segs[R_CS].selector); |
2270 | eaa728ee | bellard | PUSHL(ssp, esp, esp_mask, next_eip); |
2271 | eaa728ee | bellard | } else {
|
2272 | eaa728ee | bellard | PUSHW(ssp, esp, esp_mask, env->segs[R_CS].selector); |
2273 | eaa728ee | bellard | PUSHW(ssp, esp, esp_mask, next_eip); |
2274 | eaa728ee | bellard | } |
2275 | eaa728ee | bellard | |
2276 | eaa728ee | bellard | SET_ESP(esp, esp_mask); |
2277 | eaa728ee | bellard | env->eip = new_eip; |
2278 | eaa728ee | bellard | env->segs[R_CS].selector = new_cs; |
2279 | eaa728ee | bellard | env->segs[R_CS].base = (new_cs << 4);
|
2280 | eaa728ee | bellard | } |
2281 | eaa728ee | bellard | |
2282 | eaa728ee | bellard | /* protected mode call */
|
2283 | eaa728ee | bellard | void helper_lcall_protected(int new_cs, target_ulong new_eip, |
2284 | eaa728ee | bellard | int shift, int next_eip_addend) |
2285 | eaa728ee | bellard | { |
2286 | eaa728ee | bellard | int new_stack, i;
|
2287 | eaa728ee | bellard | uint32_t e1, e2, cpl, dpl, rpl, selector, offset, param_count; |
2288 | 1c918eba | blueswir1 | uint32_t ss = 0, ss_e1 = 0, ss_e2 = 0, sp, type, ss_dpl, sp_mask; |
2289 | eaa728ee | bellard | uint32_t val, limit, old_sp_mask; |
2290 | eaa728ee | bellard | target_ulong ssp, old_ssp, next_eip; |
2291 | eaa728ee | bellard | |
2292 | eaa728ee | bellard | next_eip = env->eip + next_eip_addend; |
2293 | d12d51d5 | aliguori | LOG_PCALL("lcall %04x:%08x s=%d\n", new_cs, (uint32_t)new_eip, shift);
|
2294 | d12d51d5 | aliguori | LOG_PCALL_STATE(env); |
2295 | eaa728ee | bellard | if ((new_cs & 0xfffc) == 0) |
2296 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2297 | eaa728ee | bellard | if (load_segment(&e1, &e2, new_cs) != 0) |
2298 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2299 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2300 | d12d51d5 | aliguori | LOG_PCALL("desc=%08x:%08x\n", e1, e2);
|
2301 | eaa728ee | bellard | if (e2 & DESC_S_MASK) {
|
2302 | eaa728ee | bellard | if (!(e2 & DESC_CS_MASK))
|
2303 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2304 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2305 | eaa728ee | bellard | if (e2 & DESC_C_MASK) {
|
2306 | eaa728ee | bellard | /* conforming code segment */
|
2307 | eaa728ee | bellard | if (dpl > cpl)
|
2308 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2309 | eaa728ee | bellard | } else {
|
2310 | eaa728ee | bellard | /* non conforming code segment */
|
2311 | eaa728ee | bellard | rpl = new_cs & 3;
|
2312 | eaa728ee | bellard | if (rpl > cpl)
|
2313 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2314 | eaa728ee | bellard | if (dpl != cpl)
|
2315 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2316 | eaa728ee | bellard | } |
2317 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2318 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
|
2319 | eaa728ee | bellard | |
2320 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2321 | eaa728ee | bellard | /* XXX: check 16/32 bit cases in long mode */
|
2322 | eaa728ee | bellard | if (shift == 2) { |
2323 | eaa728ee | bellard | target_ulong rsp; |
2324 | eaa728ee | bellard | /* 64 bit case */
|
2325 | eaa728ee | bellard | rsp = ESP; |
2326 | eaa728ee | bellard | PUSHQ(rsp, env->segs[R_CS].selector); |
2327 | eaa728ee | bellard | PUSHQ(rsp, next_eip); |
2328 | eaa728ee | bellard | /* from this point, not restartable */
|
2329 | eaa728ee | bellard | ESP = rsp; |
2330 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
|
2331 | eaa728ee | bellard | get_seg_base(e1, e2), |
2332 | eaa728ee | bellard | get_seg_limit(e1, e2), e2); |
2333 | eaa728ee | bellard | EIP = new_eip; |
2334 | eaa728ee | bellard | } else
|
2335 | eaa728ee | bellard | #endif
|
2336 | eaa728ee | bellard | { |
2337 | eaa728ee | bellard | sp = ESP; |
2338 | eaa728ee | bellard | sp_mask = get_sp_mask(env->segs[R_SS].flags); |
2339 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
2340 | eaa728ee | bellard | if (shift) {
|
2341 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector); |
2342 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, next_eip); |
2343 | eaa728ee | bellard | } else {
|
2344 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector); |
2345 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, next_eip); |
2346 | eaa728ee | bellard | } |
2347 | eaa728ee | bellard | |
2348 | eaa728ee | bellard | limit = get_seg_limit(e1, e2); |
2349 | eaa728ee | bellard | if (new_eip > limit)
|
2350 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2351 | eaa728ee | bellard | /* from this point, not restartable */
|
2352 | eaa728ee | bellard | SET_ESP(sp, sp_mask); |
2353 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
|
2354 | eaa728ee | bellard | get_seg_base(e1, e2), limit, e2); |
2355 | eaa728ee | bellard | EIP = new_eip; |
2356 | eaa728ee | bellard | } |
2357 | eaa728ee | bellard | } else {
|
2358 | eaa728ee | bellard | /* check gate type */
|
2359 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
|
2360 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2361 | eaa728ee | bellard | rpl = new_cs & 3;
|
2362 | eaa728ee | bellard | switch(type) {
|
2363 | eaa728ee | bellard | case 1: /* available 286 TSS */ |
2364 | eaa728ee | bellard | case 9: /* available 386 TSS */ |
2365 | eaa728ee | bellard | case 5: /* task gate */ |
2366 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
2367 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2368 | eaa728ee | bellard | switch_tss(new_cs, e1, e2, SWITCH_TSS_CALL, next_eip); |
2369 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
2370 | eaa728ee | bellard | return;
|
2371 | eaa728ee | bellard | case 4: /* 286 call gate */ |
2372 | eaa728ee | bellard | case 12: /* 386 call gate */ |
2373 | eaa728ee | bellard | break;
|
2374 | eaa728ee | bellard | default:
|
2375 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2376 | eaa728ee | bellard | break;
|
2377 | eaa728ee | bellard | } |
2378 | eaa728ee | bellard | shift = type >> 3;
|
2379 | eaa728ee | bellard | |
2380 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
2381 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2382 | eaa728ee | bellard | /* check valid bit */
|
2383 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2384 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
|
2385 | eaa728ee | bellard | selector = e1 >> 16;
|
2386 | eaa728ee | bellard | offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff); |
2387 | eaa728ee | bellard | param_count = e2 & 0x1f;
|
2388 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
2389 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2390 | eaa728ee | bellard | |
2391 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
2392 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2393 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK)))
|
2394 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2395 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2396 | eaa728ee | bellard | if (dpl > cpl)
|
2397 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
|
2398 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2399 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
|
2400 | eaa728ee | bellard | |
2401 | eaa728ee | bellard | if (!(e2 & DESC_C_MASK) && dpl < cpl) {
|
2402 | eaa728ee | bellard | /* to inner privilege */
|
2403 | eaa728ee | bellard | get_ss_esp_from_tss(&ss, &sp, dpl); |
2404 | d12d51d5 | aliguori | LOG_PCALL("new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n", |
2405 | eaa728ee | bellard | ss, sp, param_count, ESP); |
2406 | eaa728ee | bellard | if ((ss & 0xfffc) == 0) |
2407 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2408 | eaa728ee | bellard | if ((ss & 3) != dpl) |
2409 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2410 | eaa728ee | bellard | if (load_segment(&ss_e1, &ss_e2, ss) != 0) |
2411 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2412 | eaa728ee | bellard | ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
|
2413 | eaa728ee | bellard | if (ss_dpl != dpl)
|
2414 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2415 | eaa728ee | bellard | if (!(ss_e2 & DESC_S_MASK) ||
|
2416 | eaa728ee | bellard | (ss_e2 & DESC_CS_MASK) || |
2417 | eaa728ee | bellard | !(ss_e2 & DESC_W_MASK)) |
2418 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2419 | eaa728ee | bellard | if (!(ss_e2 & DESC_P_MASK))
|
2420 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
|
2421 | eaa728ee | bellard | |
2422 | eaa728ee | bellard | // push_size = ((param_count * 2) + 8) << shift;
|
2423 | eaa728ee | bellard | |
2424 | eaa728ee | bellard | old_sp_mask = get_sp_mask(env->segs[R_SS].flags); |
2425 | eaa728ee | bellard | old_ssp = env->segs[R_SS].base; |
2426 | eaa728ee | bellard | |
2427 | eaa728ee | bellard | sp_mask = get_sp_mask(ss_e2); |
2428 | eaa728ee | bellard | ssp = get_seg_base(ss_e1, ss_e2); |
2429 | eaa728ee | bellard | if (shift) {
|
2430 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, env->segs[R_SS].selector); |
2431 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, ESP); |
2432 | eaa728ee | bellard | for(i = param_count - 1; i >= 0; i--) { |
2433 | eaa728ee | bellard | val = ldl_kernel(old_ssp + ((ESP + i * 4) & old_sp_mask));
|
2434 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, val); |
2435 | eaa728ee | bellard | } |
2436 | eaa728ee | bellard | } else {
|
2437 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, env->segs[R_SS].selector); |
2438 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, ESP); |
2439 | eaa728ee | bellard | for(i = param_count - 1; i >= 0; i--) { |
2440 | eaa728ee | bellard | val = lduw_kernel(old_ssp + ((ESP + i * 2) & old_sp_mask));
|
2441 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, val); |
2442 | eaa728ee | bellard | } |
2443 | eaa728ee | bellard | } |
2444 | eaa728ee | bellard | new_stack = 1;
|
2445 | eaa728ee | bellard | } else {
|
2446 | eaa728ee | bellard | /* to same privilege */
|
2447 | eaa728ee | bellard | sp = ESP; |
2448 | eaa728ee | bellard | sp_mask = get_sp_mask(env->segs[R_SS].flags); |
2449 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
2450 | eaa728ee | bellard | // push_size = (4 << shift);
|
2451 | eaa728ee | bellard | new_stack = 0;
|
2452 | eaa728ee | bellard | } |
2453 | eaa728ee | bellard | |
2454 | eaa728ee | bellard | if (shift) {
|
2455 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector); |
2456 | eaa728ee | bellard | PUSHL(ssp, sp, sp_mask, next_eip); |
2457 | eaa728ee | bellard | } else {
|
2458 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector); |
2459 | eaa728ee | bellard | PUSHW(ssp, sp, sp_mask, next_eip); |
2460 | eaa728ee | bellard | } |
2461 | eaa728ee | bellard | |
2462 | eaa728ee | bellard | /* from this point, not restartable */
|
2463 | eaa728ee | bellard | |
2464 | eaa728ee | bellard | if (new_stack) {
|
2465 | eaa728ee | bellard | ss = (ss & ~3) | dpl;
|
2466 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, ss, |
2467 | eaa728ee | bellard | ssp, |
2468 | eaa728ee | bellard | get_seg_limit(ss_e1, ss_e2), |
2469 | eaa728ee | bellard | ss_e2); |
2470 | eaa728ee | bellard | } |
2471 | eaa728ee | bellard | |
2472 | eaa728ee | bellard | selector = (selector & ~3) | dpl;
|
2473 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, selector, |
2474 | eaa728ee | bellard | get_seg_base(e1, e2), |
2475 | eaa728ee | bellard | get_seg_limit(e1, e2), |
2476 | eaa728ee | bellard | e2); |
2477 | eaa728ee | bellard | cpu_x86_set_cpl(env, dpl); |
2478 | eaa728ee | bellard | SET_ESP(sp, sp_mask); |
2479 | eaa728ee | bellard | EIP = offset; |
2480 | eaa728ee | bellard | } |
2481 | eaa728ee | bellard | #ifdef USE_KQEMU
|
2482 | eaa728ee | bellard | if (kqemu_is_ok(env)) {
|
2483 | eaa728ee | bellard | env->exception_index = -1;
|
2484 | eaa728ee | bellard | cpu_loop_exit(); |
2485 | eaa728ee | bellard | } |
2486 | eaa728ee | bellard | #endif
|
2487 | eaa728ee | bellard | } |
2488 | eaa728ee | bellard | |
2489 | eaa728ee | bellard | /* real and vm86 mode iret */
|
2490 | eaa728ee | bellard | void helper_iret_real(int shift) |
2491 | eaa728ee | bellard | { |
2492 | eaa728ee | bellard | uint32_t sp, new_cs, new_eip, new_eflags, sp_mask; |
2493 | eaa728ee | bellard | target_ulong ssp; |
2494 | eaa728ee | bellard | int eflags_mask;
|
2495 | eaa728ee | bellard | |
2496 | eaa728ee | bellard | sp_mask = 0xffff; /* XXXX: use SS segment size ? */ |
2497 | eaa728ee | bellard | sp = ESP; |
2498 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
2499 | eaa728ee | bellard | if (shift == 1) { |
2500 | eaa728ee | bellard | /* 32 bits */
|
2501 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_eip); |
2502 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_cs); |
2503 | eaa728ee | bellard | new_cs &= 0xffff;
|
2504 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_eflags); |
2505 | eaa728ee | bellard | } else {
|
2506 | eaa728ee | bellard | /* 16 bits */
|
2507 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_eip); |
2508 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_cs); |
2509 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_eflags); |
2510 | eaa728ee | bellard | } |
2511 | eaa728ee | bellard | ESP = (ESP & ~sp_mask) | (sp & sp_mask); |
2512 | bdadc0b5 | malc | env->segs[R_CS].selector = new_cs; |
2513 | bdadc0b5 | malc | env->segs[R_CS].base = (new_cs << 4);
|
2514 | eaa728ee | bellard | env->eip = new_eip; |
2515 | eaa728ee | bellard | if (env->eflags & VM_MASK)
|
2516 | eaa728ee | bellard | eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | RF_MASK | NT_MASK; |
2517 | eaa728ee | bellard | else
|
2518 | eaa728ee | bellard | eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK | RF_MASK | NT_MASK; |
2519 | eaa728ee | bellard | if (shift == 0) |
2520 | eaa728ee | bellard | eflags_mask &= 0xffff;
|
2521 | eaa728ee | bellard | load_eflags(new_eflags, eflags_mask); |
2522 | db620f46 | bellard | env->hflags2 &= ~HF2_NMI_MASK; |
2523 | eaa728ee | bellard | } |
2524 | eaa728ee | bellard | |
2525 | eaa728ee | bellard | static inline void validate_seg(int seg_reg, int cpl) |
2526 | eaa728ee | bellard | { |
2527 | eaa728ee | bellard | int dpl;
|
2528 | eaa728ee | bellard | uint32_t e2; |
2529 | eaa728ee | bellard | |
2530 | eaa728ee | bellard | /* XXX: on x86_64, we do not want to nullify FS and GS because
|
2531 | eaa728ee | bellard | they may still contain a valid base. I would be interested to
|
2532 | eaa728ee | bellard | know how a real x86_64 CPU behaves */
|
2533 | eaa728ee | bellard | if ((seg_reg == R_FS || seg_reg == R_GS) &&
|
2534 | eaa728ee | bellard | (env->segs[seg_reg].selector & 0xfffc) == 0) |
2535 | eaa728ee | bellard | return;
|
2536 | eaa728ee | bellard | |
2537 | eaa728ee | bellard | e2 = env->segs[seg_reg].flags; |
2538 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2539 | eaa728ee | bellard | if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
|
2540 | eaa728ee | bellard | /* data or non conforming code segment */
|
2541 | eaa728ee | bellard | if (dpl < cpl) {
|
2542 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, seg_reg, 0, 0, 0, 0); |
2543 | eaa728ee | bellard | } |
2544 | eaa728ee | bellard | } |
2545 | eaa728ee | bellard | } |
2546 | eaa728ee | bellard | |
2547 | eaa728ee | bellard | /* protected mode iret */
|
2548 | eaa728ee | bellard | static inline void helper_ret_protected(int shift, int is_iret, int addend) |
2549 | eaa728ee | bellard | { |
2550 | eaa728ee | bellard | uint32_t new_cs, new_eflags, new_ss; |
2551 | eaa728ee | bellard | uint32_t new_es, new_ds, new_fs, new_gs; |
2552 | eaa728ee | bellard | uint32_t e1, e2, ss_e1, ss_e2; |
2553 | eaa728ee | bellard | int cpl, dpl, rpl, eflags_mask, iopl;
|
2554 | eaa728ee | bellard | target_ulong ssp, sp, new_eip, new_esp, sp_mask; |
2555 | eaa728ee | bellard | |
2556 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2557 | eaa728ee | bellard | if (shift == 2) |
2558 | eaa728ee | bellard | sp_mask = -1;
|
2559 | eaa728ee | bellard | else
|
2560 | eaa728ee | bellard | #endif
|
2561 | eaa728ee | bellard | sp_mask = get_sp_mask(env->segs[R_SS].flags); |
2562 | eaa728ee | bellard | sp = ESP; |
2563 | eaa728ee | bellard | ssp = env->segs[R_SS].base; |
2564 | eaa728ee | bellard | new_eflags = 0; /* avoid warning */ |
2565 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2566 | eaa728ee | bellard | if (shift == 2) { |
2567 | eaa728ee | bellard | POPQ(sp, new_eip); |
2568 | eaa728ee | bellard | POPQ(sp, new_cs); |
2569 | eaa728ee | bellard | new_cs &= 0xffff;
|
2570 | eaa728ee | bellard | if (is_iret) {
|
2571 | eaa728ee | bellard | POPQ(sp, new_eflags); |
2572 | eaa728ee | bellard | } |
2573 | eaa728ee | bellard | } else
|
2574 | eaa728ee | bellard | #endif
|
2575 | eaa728ee | bellard | if (shift == 1) { |
2576 | eaa728ee | bellard | /* 32 bits */
|
2577 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_eip); |
2578 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_cs); |
2579 | eaa728ee | bellard | new_cs &= 0xffff;
|
2580 | eaa728ee | bellard | if (is_iret) {
|
2581 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_eflags); |
2582 | eaa728ee | bellard | if (new_eflags & VM_MASK)
|
2583 | eaa728ee | bellard | goto return_to_vm86;
|
2584 | eaa728ee | bellard | } |
2585 | eaa728ee | bellard | } else {
|
2586 | eaa728ee | bellard | /* 16 bits */
|
2587 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_eip); |
2588 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_cs); |
2589 | eaa728ee | bellard | if (is_iret)
|
2590 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_eflags); |
2591 | eaa728ee | bellard | } |
2592 | d12d51d5 | aliguori | LOG_PCALL("lret new %04x:" TARGET_FMT_lx " s=%d addend=0x%x\n", |
2593 | d12d51d5 | aliguori | new_cs, new_eip, shift, addend); |
2594 | d12d51d5 | aliguori | LOG_PCALL_STATE(env); |
2595 | eaa728ee | bellard | if ((new_cs & 0xfffc) == 0) |
2596 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2597 | eaa728ee | bellard | if (load_segment(&e1, &e2, new_cs) != 0) |
2598 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2599 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK) ||
|
2600 | eaa728ee | bellard | !(e2 & DESC_CS_MASK)) |
2601 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2602 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2603 | eaa728ee | bellard | rpl = new_cs & 3;
|
2604 | eaa728ee | bellard | if (rpl < cpl)
|
2605 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2606 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
2607 | eaa728ee | bellard | if (e2 & DESC_C_MASK) {
|
2608 | eaa728ee | bellard | if (dpl > rpl)
|
2609 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2610 | eaa728ee | bellard | } else {
|
2611 | eaa728ee | bellard | if (dpl != rpl)
|
2612 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
|
2613 | eaa728ee | bellard | } |
2614 | eaa728ee | bellard | if (!(e2 & DESC_P_MASK))
|
2615 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
|
2616 | eaa728ee | bellard | |
2617 | eaa728ee | bellard | sp += addend; |
2618 | eaa728ee | bellard | if (rpl == cpl && (!(env->hflags & HF_CS64_MASK) ||
|
2619 | eaa728ee | bellard | ((env->hflags & HF_CS64_MASK) && !is_iret))) { |
2620 | 1235fc06 | ths | /* return to same privilege level */
|
2621 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, new_cs, |
2622 | eaa728ee | bellard | get_seg_base(e1, e2), |
2623 | eaa728ee | bellard | get_seg_limit(e1, e2), |
2624 | eaa728ee | bellard | e2); |
2625 | eaa728ee | bellard | } else {
|
2626 | eaa728ee | bellard | /* return to different privilege level */
|
2627 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2628 | eaa728ee | bellard | if (shift == 2) { |
2629 | eaa728ee | bellard | POPQ(sp, new_esp); |
2630 | eaa728ee | bellard | POPQ(sp, new_ss); |
2631 | eaa728ee | bellard | new_ss &= 0xffff;
|
2632 | eaa728ee | bellard | } else
|
2633 | eaa728ee | bellard | #endif
|
2634 | eaa728ee | bellard | if (shift == 1) { |
2635 | eaa728ee | bellard | /* 32 bits */
|
2636 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_esp); |
2637 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_ss); |
2638 | eaa728ee | bellard | new_ss &= 0xffff;
|
2639 | eaa728ee | bellard | } else {
|
2640 | eaa728ee | bellard | /* 16 bits */
|
2641 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_esp); |
2642 | eaa728ee | bellard | POPW(ssp, sp, sp_mask, new_ss); |
2643 | eaa728ee | bellard | } |
2644 | d12d51d5 | aliguori | LOG_PCALL("new ss:esp=%04x:" TARGET_FMT_lx "\n", |
2645 | eaa728ee | bellard | new_ss, new_esp); |
2646 | eaa728ee | bellard | if ((new_ss & 0xfffc) == 0) { |
2647 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2648 | eaa728ee | bellard | /* NULL ss is allowed in long mode if cpl != 3*/
|
2649 | eaa728ee | bellard | /* XXX: test CS64 ? */
|
2650 | eaa728ee | bellard | if ((env->hflags & HF_LMA_MASK) && rpl != 3) { |
2651 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, new_ss, |
2652 | eaa728ee | bellard | 0, 0xffffffff, |
2653 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2654 | eaa728ee | bellard | DESC_S_MASK | (rpl << DESC_DPL_SHIFT) | |
2655 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
2656 | eaa728ee | bellard | ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */
|
2657 | eaa728ee | bellard | } else
|
2658 | eaa728ee | bellard | #endif
|
2659 | eaa728ee | bellard | { |
2660 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2661 | eaa728ee | bellard | } |
2662 | eaa728ee | bellard | } else {
|
2663 | eaa728ee | bellard | if ((new_ss & 3) != rpl) |
2664 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
|
2665 | eaa728ee | bellard | if (load_segment(&ss_e1, &ss_e2, new_ss) != 0) |
2666 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
|
2667 | eaa728ee | bellard | if (!(ss_e2 & DESC_S_MASK) ||
|
2668 | eaa728ee | bellard | (ss_e2 & DESC_CS_MASK) || |
2669 | eaa728ee | bellard | !(ss_e2 & DESC_W_MASK)) |
2670 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
|
2671 | eaa728ee | bellard | dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3;
|
2672 | eaa728ee | bellard | if (dpl != rpl)
|
2673 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
|
2674 | eaa728ee | bellard | if (!(ss_e2 & DESC_P_MASK))
|
2675 | eaa728ee | bellard | raise_exception_err(EXCP0B_NOSEG, new_ss & 0xfffc);
|
2676 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, new_ss, |
2677 | eaa728ee | bellard | get_seg_base(ss_e1, ss_e2), |
2678 | eaa728ee | bellard | get_seg_limit(ss_e1, ss_e2), |
2679 | eaa728ee | bellard | ss_e2); |
2680 | eaa728ee | bellard | } |
2681 | eaa728ee | bellard | |
2682 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_CS, new_cs, |
2683 | eaa728ee | bellard | get_seg_base(e1, e2), |
2684 | eaa728ee | bellard | get_seg_limit(e1, e2), |
2685 | eaa728ee | bellard | e2); |
2686 | eaa728ee | bellard | cpu_x86_set_cpl(env, rpl); |
2687 | eaa728ee | bellard | sp = new_esp; |
2688 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2689 | eaa728ee | bellard | if (env->hflags & HF_CS64_MASK)
|
2690 | eaa728ee | bellard | sp_mask = -1;
|
2691 | eaa728ee | bellard | else
|
2692 | eaa728ee | bellard | #endif
|
2693 | eaa728ee | bellard | sp_mask = get_sp_mask(ss_e2); |
2694 | eaa728ee | bellard | |
2695 | eaa728ee | bellard | /* validate data segments */
|
2696 | eaa728ee | bellard | validate_seg(R_ES, rpl); |
2697 | eaa728ee | bellard | validate_seg(R_DS, rpl); |
2698 | eaa728ee | bellard | validate_seg(R_FS, rpl); |
2699 | eaa728ee | bellard | validate_seg(R_GS, rpl); |
2700 | eaa728ee | bellard | |
2701 | eaa728ee | bellard | sp += addend; |
2702 | eaa728ee | bellard | } |
2703 | eaa728ee | bellard | SET_ESP(sp, sp_mask); |
2704 | eaa728ee | bellard | env->eip = new_eip; |
2705 | eaa728ee | bellard | if (is_iret) {
|
2706 | eaa728ee | bellard | /* NOTE: 'cpl' is the _old_ CPL */
|
2707 | eaa728ee | bellard | eflags_mask = TF_MASK | AC_MASK | ID_MASK | RF_MASK | NT_MASK; |
2708 | eaa728ee | bellard | if (cpl == 0) |
2709 | eaa728ee | bellard | eflags_mask |= IOPL_MASK; |
2710 | eaa728ee | bellard | iopl = (env->eflags >> IOPL_SHIFT) & 3;
|
2711 | eaa728ee | bellard | if (cpl <= iopl)
|
2712 | eaa728ee | bellard | eflags_mask |= IF_MASK; |
2713 | eaa728ee | bellard | if (shift == 0) |
2714 | eaa728ee | bellard | eflags_mask &= 0xffff;
|
2715 | eaa728ee | bellard | load_eflags(new_eflags, eflags_mask); |
2716 | eaa728ee | bellard | } |
2717 | eaa728ee | bellard | return;
|
2718 | eaa728ee | bellard | |
2719 | eaa728ee | bellard | return_to_vm86:
|
2720 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_esp); |
2721 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_ss); |
2722 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_es); |
2723 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_ds); |
2724 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_fs); |
2725 | eaa728ee | bellard | POPL(ssp, sp, sp_mask, new_gs); |
2726 | eaa728ee | bellard | |
2727 | eaa728ee | bellard | /* modify processor state */
|
2728 | eaa728ee | bellard | load_eflags(new_eflags, TF_MASK | AC_MASK | ID_MASK | |
2729 | eaa728ee | bellard | IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK); |
2730 | eaa728ee | bellard | load_seg_vm(R_CS, new_cs & 0xffff);
|
2731 | eaa728ee | bellard | cpu_x86_set_cpl(env, 3);
|
2732 | eaa728ee | bellard | load_seg_vm(R_SS, new_ss & 0xffff);
|
2733 | eaa728ee | bellard | load_seg_vm(R_ES, new_es & 0xffff);
|
2734 | eaa728ee | bellard | load_seg_vm(R_DS, new_ds & 0xffff);
|
2735 | eaa728ee | bellard | load_seg_vm(R_FS, new_fs & 0xffff);
|
2736 | eaa728ee | bellard | load_seg_vm(R_GS, new_gs & 0xffff);
|
2737 | eaa728ee | bellard | |
2738 | eaa728ee | bellard | env->eip = new_eip & 0xffff;
|
2739 | eaa728ee | bellard | ESP = new_esp; |
2740 | eaa728ee | bellard | } |
2741 | eaa728ee | bellard | |
2742 | eaa728ee | bellard | void helper_iret_protected(int shift, int next_eip) |
2743 | eaa728ee | bellard | { |
2744 | eaa728ee | bellard | int tss_selector, type;
|
2745 | eaa728ee | bellard | uint32_t e1, e2; |
2746 | eaa728ee | bellard | |
2747 | eaa728ee | bellard | /* specific case for TSS */
|
2748 | eaa728ee | bellard | if (env->eflags & NT_MASK) {
|
2749 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
2750 | eaa728ee | bellard | if (env->hflags & HF_LMA_MASK)
|
2751 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2752 | eaa728ee | bellard | #endif
|
2753 | eaa728ee | bellard | tss_selector = lduw_kernel(env->tr.base + 0);
|
2754 | eaa728ee | bellard | if (tss_selector & 4) |
2755 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
|
2756 | eaa728ee | bellard | if (load_segment(&e1, &e2, tss_selector) != 0) |
2757 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
|
2758 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0x17;
|
2759 | eaa728ee | bellard | /* NOTE: we check both segment and busy TSS */
|
2760 | eaa728ee | bellard | if (type != 3) |
2761 | eaa728ee | bellard | raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
|
2762 | eaa728ee | bellard | switch_tss(tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip); |
2763 | eaa728ee | bellard | } else {
|
2764 | eaa728ee | bellard | helper_ret_protected(shift, 1, 0); |
2765 | eaa728ee | bellard | } |
2766 | db620f46 | bellard | env->hflags2 &= ~HF2_NMI_MASK; |
2767 | eaa728ee | bellard | #ifdef USE_KQEMU
|
2768 | eaa728ee | bellard | if (kqemu_is_ok(env)) {
|
2769 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
2770 | eaa728ee | bellard | env->exception_index = -1;
|
2771 | eaa728ee | bellard | cpu_loop_exit(); |
2772 | eaa728ee | bellard | } |
2773 | eaa728ee | bellard | #endif
|
2774 | eaa728ee | bellard | } |
2775 | eaa728ee | bellard | |
2776 | eaa728ee | bellard | void helper_lret_protected(int shift, int addend) |
2777 | eaa728ee | bellard | { |
2778 | eaa728ee | bellard | helper_ret_protected(shift, 0, addend);
|
2779 | eaa728ee | bellard | #ifdef USE_KQEMU
|
2780 | eaa728ee | bellard | if (kqemu_is_ok(env)) {
|
2781 | eaa728ee | bellard | env->exception_index = -1;
|
2782 | eaa728ee | bellard | cpu_loop_exit(); |
2783 | eaa728ee | bellard | } |
2784 | eaa728ee | bellard | #endif
|
2785 | eaa728ee | bellard | } |
2786 | eaa728ee | bellard | |
2787 | eaa728ee | bellard | void helper_sysenter(void) |
2788 | eaa728ee | bellard | { |
2789 | eaa728ee | bellard | if (env->sysenter_cs == 0) { |
2790 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2791 | eaa728ee | bellard | } |
2792 | eaa728ee | bellard | env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK); |
2793 | eaa728ee | bellard | cpu_x86_set_cpl(env, 0);
|
2794 | 2436b61a | balrog | |
2795 | 2436b61a | balrog | #ifdef TARGET_X86_64
|
2796 | 2436b61a | balrog | if (env->hflags & HF_LMA_MASK) {
|
2797 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
|
2798 | 2436b61a | balrog | 0, 0xffffffff, |
2799 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2800 | 2436b61a | balrog | DESC_S_MASK | |
2801 | 2436b61a | balrog | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); |
2802 | 2436b61a | balrog | } else
|
2803 | 2436b61a | balrog | #endif
|
2804 | 2436b61a | balrog | { |
2805 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
|
2806 | 2436b61a | balrog | 0, 0xffffffff, |
2807 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2808 | 2436b61a | balrog | DESC_S_MASK | |
2809 | 2436b61a | balrog | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); |
2810 | 2436b61a | balrog | } |
2811 | eaa728ee | bellard | cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc, |
2812 | eaa728ee | bellard | 0, 0xffffffff, |
2813 | eaa728ee | bellard | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2814 | eaa728ee | bellard | DESC_S_MASK | |
2815 | eaa728ee | bellard | DESC_W_MASK | DESC_A_MASK); |
2816 | eaa728ee | bellard | ESP = env->sysenter_esp; |
2817 | eaa728ee | bellard | EIP = env->sysenter_eip; |
2818 | eaa728ee | bellard | } |
2819 | eaa728ee | bellard | |
2820 | 2436b61a | balrog | void helper_sysexit(int dflag) |
2821 | eaa728ee | bellard | { |
2822 | eaa728ee | bellard | int cpl;
|
2823 | eaa728ee | bellard | |
2824 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
2825 | eaa728ee | bellard | if (env->sysenter_cs == 0 || cpl != 0) { |
2826 | eaa728ee | bellard | raise_exception_err(EXCP0D_GPF, 0);
|
2827 | eaa728ee | bellard | } |
2828 | eaa728ee | bellard | cpu_x86_set_cpl(env, 3);
|
2829 | 2436b61a | balrog | #ifdef TARGET_X86_64
|
2830 | 2436b61a | balrog | if (dflag == 2) { |
2831 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 32) & 0xfffc) | 3, |
2832 | 2436b61a | balrog | 0, 0xffffffff, |
2833 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2834 | 2436b61a | balrog | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
2835 | 2436b61a | balrog | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); |
2836 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 40) & 0xfffc) | 3, |
2837 | 2436b61a | balrog | 0, 0xffffffff, |
2838 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2839 | 2436b61a | balrog | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
2840 | 2436b61a | balrog | DESC_W_MASK | DESC_A_MASK); |
2841 | 2436b61a | balrog | } else
|
2842 | 2436b61a | balrog | #endif
|
2843 | 2436b61a | balrog | { |
2844 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3, |
2845 | 2436b61a | balrog | 0, 0xffffffff, |
2846 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2847 | 2436b61a | balrog | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
2848 | 2436b61a | balrog | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); |
2849 | 2436b61a | balrog | cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3, |
2850 | 2436b61a | balrog | 0, 0xffffffff, |
2851 | 2436b61a | balrog | DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
2852 | 2436b61a | balrog | DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
|
2853 | 2436b61a | balrog | DESC_W_MASK | DESC_A_MASK); |
2854 | 2436b61a | balrog | } |
2855 | eaa728ee | bellard | ESP = ECX; |
2856 | eaa728ee | bellard | EIP = EDX; |
2857 | eaa728ee | bellard | #ifdef USE_KQEMU
|
2858 | eaa728ee | bellard | if (kqemu_is_ok(env)) {
|
2859 | eaa728ee | bellard | env->exception_index = -1;
|
2860 | eaa728ee | bellard | cpu_loop_exit(); |
2861 | eaa728ee | bellard | } |
2862 | eaa728ee | bellard | #endif
|
2863 | eaa728ee | bellard | } |
2864 | eaa728ee | bellard | |
2865 | 872929aa | bellard | #if defined(CONFIG_USER_ONLY)
|
2866 | 872929aa | bellard | target_ulong helper_read_crN(int reg)
|
2867 | eaa728ee | bellard | { |
2868 | 872929aa | bellard | return 0; |
2869 | 872929aa | bellard | } |
2870 | 872929aa | bellard | |
2871 | 872929aa | bellard | void helper_write_crN(int reg, target_ulong t0) |
2872 | 872929aa | bellard | { |
2873 | 872929aa | bellard | } |
2874 | 01df040b | aliguori | |
2875 | 01df040b | aliguori | void helper_movl_drN_T0(int reg, target_ulong t0) |
2876 | 01df040b | aliguori | { |
2877 | 01df040b | aliguori | } |
2878 | 872929aa | bellard | #else
|
2879 | 872929aa | bellard | target_ulong helper_read_crN(int reg)
|
2880 | 872929aa | bellard | { |
2881 | 872929aa | bellard | target_ulong val; |
2882 | 872929aa | bellard | |
2883 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_READ_CR0 + reg, 0);
|
2884 | 872929aa | bellard | switch(reg) {
|
2885 | 872929aa | bellard | default:
|
2886 | 872929aa | bellard | val = env->cr[reg]; |
2887 | 872929aa | bellard | break;
|
2888 | 872929aa | bellard | case 8: |
2889 | db620f46 | bellard | if (!(env->hflags2 & HF2_VINTR_MASK)) {
|
2890 | db620f46 | bellard | val = cpu_get_apic_tpr(env); |
2891 | db620f46 | bellard | } else {
|
2892 | db620f46 | bellard | val = env->v_tpr; |
2893 | db620f46 | bellard | } |
2894 | 872929aa | bellard | break;
|
2895 | 872929aa | bellard | } |
2896 | 872929aa | bellard | return val;
|
2897 | 872929aa | bellard | } |
2898 | 872929aa | bellard | |
2899 | 872929aa | bellard | void helper_write_crN(int reg, target_ulong t0) |
2900 | 872929aa | bellard | { |
2901 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_WRITE_CR0 + reg, 0);
|
2902 | eaa728ee | bellard | switch(reg) {
|
2903 | eaa728ee | bellard | case 0: |
2904 | eaa728ee | bellard | cpu_x86_update_cr0(env, t0); |
2905 | eaa728ee | bellard | break;
|
2906 | eaa728ee | bellard | case 3: |
2907 | eaa728ee | bellard | cpu_x86_update_cr3(env, t0); |
2908 | eaa728ee | bellard | break;
|
2909 | eaa728ee | bellard | case 4: |
2910 | eaa728ee | bellard | cpu_x86_update_cr4(env, t0); |
2911 | eaa728ee | bellard | break;
|
2912 | eaa728ee | bellard | case 8: |
2913 | db620f46 | bellard | if (!(env->hflags2 & HF2_VINTR_MASK)) {
|
2914 | db620f46 | bellard | cpu_set_apic_tpr(env, t0); |
2915 | db620f46 | bellard | } |
2916 | db620f46 | bellard | env->v_tpr = t0 & 0x0f;
|
2917 | eaa728ee | bellard | break;
|
2918 | eaa728ee | bellard | default:
|
2919 | eaa728ee | bellard | env->cr[reg] = t0; |
2920 | eaa728ee | bellard | break;
|
2921 | eaa728ee | bellard | } |
2922 | eaa728ee | bellard | } |
2923 | 01df040b | aliguori | |
2924 | 01df040b | aliguori | void helper_movl_drN_T0(int reg, target_ulong t0) |
2925 | 01df040b | aliguori | { |
2926 | 01df040b | aliguori | int i;
|
2927 | 01df040b | aliguori | |
2928 | 01df040b | aliguori | if (reg < 4) { |
2929 | 01df040b | aliguori | hw_breakpoint_remove(env, reg); |
2930 | 01df040b | aliguori | env->dr[reg] = t0; |
2931 | 01df040b | aliguori | hw_breakpoint_insert(env, reg); |
2932 | 01df040b | aliguori | } else if (reg == 7) { |
2933 | 01df040b | aliguori | for (i = 0; i < 4; i++) |
2934 | 01df040b | aliguori | hw_breakpoint_remove(env, i); |
2935 | 01df040b | aliguori | env->dr[7] = t0;
|
2936 | 01df040b | aliguori | for (i = 0; i < 4; i++) |
2937 | 01df040b | aliguori | hw_breakpoint_insert(env, i); |
2938 | 01df040b | aliguori | } else
|
2939 | 01df040b | aliguori | env->dr[reg] = t0; |
2940 | 01df040b | aliguori | } |
2941 | 872929aa | bellard | #endif
|
2942 | eaa728ee | bellard | |
2943 | eaa728ee | bellard | void helper_lmsw(target_ulong t0)
|
2944 | eaa728ee | bellard | { |
2945 | eaa728ee | bellard | /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
|
2946 | eaa728ee | bellard | if already set to one. */
|
2947 | eaa728ee | bellard | t0 = (env->cr[0] & ~0xe) | (t0 & 0xf); |
2948 | 872929aa | bellard | helper_write_crN(0, t0);
|
2949 | eaa728ee | bellard | } |
2950 | eaa728ee | bellard | |
2951 | eaa728ee | bellard | void helper_clts(void) |
2952 | eaa728ee | bellard | { |
2953 | eaa728ee | bellard | env->cr[0] &= ~CR0_TS_MASK;
|
2954 | eaa728ee | bellard | env->hflags &= ~HF_TS_MASK; |
2955 | eaa728ee | bellard | } |
2956 | eaa728ee | bellard | |
2957 | eaa728ee | bellard | void helper_invlpg(target_ulong addr)
|
2958 | eaa728ee | bellard | { |
2959 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_INVLPG, 0);
|
2960 | 914178d3 | bellard | tlb_flush_page(env, addr); |
2961 | eaa728ee | bellard | } |
2962 | eaa728ee | bellard | |
2963 | eaa728ee | bellard | void helper_rdtsc(void) |
2964 | eaa728ee | bellard | { |
2965 | eaa728ee | bellard | uint64_t val; |
2966 | eaa728ee | bellard | |
2967 | eaa728ee | bellard | if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) { |
2968 | eaa728ee | bellard | raise_exception(EXCP0D_GPF); |
2969 | eaa728ee | bellard | } |
2970 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_RDTSC, 0);
|
2971 | 872929aa | bellard | |
2972 | 33c263df | bellard | val = cpu_get_tsc(env) + env->tsc_offset; |
2973 | eaa728ee | bellard | EAX = (uint32_t)(val); |
2974 | eaa728ee | bellard | EDX = (uint32_t)(val >> 32);
|
2975 | eaa728ee | bellard | } |
2976 | eaa728ee | bellard | |
2977 | eaa728ee | bellard | void helper_rdpmc(void) |
2978 | eaa728ee | bellard | { |
2979 | eaa728ee | bellard | if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) { |
2980 | eaa728ee | bellard | raise_exception(EXCP0D_GPF); |
2981 | eaa728ee | bellard | } |
2982 | eaa728ee | bellard | helper_svm_check_intercept_param(SVM_EXIT_RDPMC, 0);
|
2983 | eaa728ee | bellard | |
2984 | eaa728ee | bellard | /* currently unimplemented */
|
2985 | eaa728ee | bellard | raise_exception_err(EXCP06_ILLOP, 0);
|
2986 | eaa728ee | bellard | } |
2987 | eaa728ee | bellard | |
2988 | eaa728ee | bellard | #if defined(CONFIG_USER_ONLY)
|
2989 | eaa728ee | bellard | void helper_wrmsr(void) |
2990 | eaa728ee | bellard | { |
2991 | eaa728ee | bellard | } |
2992 | eaa728ee | bellard | |
2993 | eaa728ee | bellard | void helper_rdmsr(void) |
2994 | eaa728ee | bellard | { |
2995 | eaa728ee | bellard | } |
2996 | eaa728ee | bellard | #else
|
2997 | eaa728ee | bellard | void helper_wrmsr(void) |
2998 | eaa728ee | bellard | { |
2999 | eaa728ee | bellard | uint64_t val; |
3000 | eaa728ee | bellard | |
3001 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_MSR, 1);
|
3002 | 872929aa | bellard | |
3003 | eaa728ee | bellard | val = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
|
3004 | eaa728ee | bellard | |
3005 | eaa728ee | bellard | switch((uint32_t)ECX) {
|
3006 | eaa728ee | bellard | case MSR_IA32_SYSENTER_CS:
|
3007 | eaa728ee | bellard | env->sysenter_cs = val & 0xffff;
|
3008 | eaa728ee | bellard | break;
|
3009 | eaa728ee | bellard | case MSR_IA32_SYSENTER_ESP:
|
3010 | eaa728ee | bellard | env->sysenter_esp = val; |
3011 | eaa728ee | bellard | break;
|
3012 | eaa728ee | bellard | case MSR_IA32_SYSENTER_EIP:
|
3013 | eaa728ee | bellard | env->sysenter_eip = val; |
3014 | eaa728ee | bellard | break;
|
3015 | eaa728ee | bellard | case MSR_IA32_APICBASE:
|
3016 | eaa728ee | bellard | cpu_set_apic_base(env, val); |
3017 | eaa728ee | bellard | break;
|
3018 | eaa728ee | bellard | case MSR_EFER:
|
3019 | eaa728ee | bellard | { |
3020 | eaa728ee | bellard | uint64_t update_mask; |
3021 | eaa728ee | bellard | update_mask = 0;
|
3022 | eaa728ee | bellard | if (env->cpuid_ext2_features & CPUID_EXT2_SYSCALL)
|
3023 | eaa728ee | bellard | update_mask |= MSR_EFER_SCE; |
3024 | eaa728ee | bellard | if (env->cpuid_ext2_features & CPUID_EXT2_LM)
|
3025 | eaa728ee | bellard | update_mask |= MSR_EFER_LME; |
3026 | eaa728ee | bellard | if (env->cpuid_ext2_features & CPUID_EXT2_FFXSR)
|
3027 | eaa728ee | bellard | update_mask |= MSR_EFER_FFXSR; |
3028 | eaa728ee | bellard | if (env->cpuid_ext2_features & CPUID_EXT2_NX)
|
3029 | eaa728ee | bellard | update_mask |= MSR_EFER_NXE; |
3030 | 5efc27bb | bellard | if (env->cpuid_ext3_features & CPUID_EXT3_SVM)
|
3031 | 5efc27bb | bellard | update_mask |= MSR_EFER_SVME; |
3032 | eef26553 | aliguori | if (env->cpuid_ext2_features & CPUID_EXT2_FFXSR)
|
3033 | eef26553 | aliguori | update_mask |= MSR_EFER_FFXSR; |
3034 | 5efc27bb | bellard | cpu_load_efer(env, (env->efer & ~update_mask) | |
3035 | 5efc27bb | bellard | (val & update_mask)); |
3036 | eaa728ee | bellard | } |
3037 | eaa728ee | bellard | break;
|
3038 | eaa728ee | bellard | case MSR_STAR:
|
3039 | eaa728ee | bellard | env->star = val; |
3040 | eaa728ee | bellard | break;
|
3041 | eaa728ee | bellard | case MSR_PAT:
|
3042 | eaa728ee | bellard | env->pat = val; |
3043 | eaa728ee | bellard | break;
|
3044 | eaa728ee | bellard | case MSR_VM_HSAVE_PA:
|
3045 | eaa728ee | bellard | env->vm_hsave = val; |
3046 | eaa728ee | bellard | break;
|
3047 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
3048 | eaa728ee | bellard | case MSR_LSTAR:
|
3049 | eaa728ee | bellard | env->lstar = val; |
3050 | eaa728ee | bellard | break;
|
3051 | eaa728ee | bellard | case MSR_CSTAR:
|
3052 | eaa728ee | bellard | env->cstar = val; |
3053 | eaa728ee | bellard | break;
|
3054 | eaa728ee | bellard | case MSR_FMASK:
|
3055 | eaa728ee | bellard | env->fmask = val; |
3056 | eaa728ee | bellard | break;
|
3057 | eaa728ee | bellard | case MSR_FSBASE:
|
3058 | eaa728ee | bellard | env->segs[R_FS].base = val; |
3059 | eaa728ee | bellard | break;
|
3060 | eaa728ee | bellard | case MSR_GSBASE:
|
3061 | eaa728ee | bellard | env->segs[R_GS].base = val; |
3062 | eaa728ee | bellard | break;
|
3063 | eaa728ee | bellard | case MSR_KERNELGSBASE:
|
3064 | eaa728ee | bellard | env->kernelgsbase = val; |
3065 | eaa728ee | bellard | break;
|
3066 | eaa728ee | bellard | #endif
|
3067 | 165d9b82 | aliguori | case MSR_MTRRphysBase(0): |
3068 | 165d9b82 | aliguori | case MSR_MTRRphysBase(1): |
3069 | 165d9b82 | aliguori | case MSR_MTRRphysBase(2): |
3070 | 165d9b82 | aliguori | case MSR_MTRRphysBase(3): |
3071 | 165d9b82 | aliguori | case MSR_MTRRphysBase(4): |
3072 | 165d9b82 | aliguori | case MSR_MTRRphysBase(5): |
3073 | 165d9b82 | aliguori | case MSR_MTRRphysBase(6): |
3074 | 165d9b82 | aliguori | case MSR_MTRRphysBase(7): |
3075 | 165d9b82 | aliguori | env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysBase(0)) / 2].base = val; |
3076 | 165d9b82 | aliguori | break;
|
3077 | 165d9b82 | aliguori | case MSR_MTRRphysMask(0): |
3078 | 165d9b82 | aliguori | case MSR_MTRRphysMask(1): |
3079 | 165d9b82 | aliguori | case MSR_MTRRphysMask(2): |
3080 | 165d9b82 | aliguori | case MSR_MTRRphysMask(3): |
3081 | 165d9b82 | aliguori | case MSR_MTRRphysMask(4): |
3082 | 165d9b82 | aliguori | case MSR_MTRRphysMask(5): |
3083 | 165d9b82 | aliguori | case MSR_MTRRphysMask(6): |
3084 | 165d9b82 | aliguori | case MSR_MTRRphysMask(7): |
3085 | 165d9b82 | aliguori | env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysMask(0)) / 2].mask = val; |
3086 | 165d9b82 | aliguori | break;
|
3087 | 165d9b82 | aliguori | case MSR_MTRRfix64K_00000:
|
3088 | 165d9b82 | aliguori | env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix64K_00000] = val; |
3089 | 165d9b82 | aliguori | break;
|
3090 | 165d9b82 | aliguori | case MSR_MTRRfix16K_80000:
|
3091 | 165d9b82 | aliguori | case MSR_MTRRfix16K_A0000:
|
3092 | 165d9b82 | aliguori | env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix16K_80000 + 1] = val;
|
3093 | 165d9b82 | aliguori | break;
|
3094 | 165d9b82 | aliguori | case MSR_MTRRfix4K_C0000:
|
3095 | 165d9b82 | aliguori | case MSR_MTRRfix4K_C8000:
|
3096 | 165d9b82 | aliguori | case MSR_MTRRfix4K_D0000:
|
3097 | 165d9b82 | aliguori | case MSR_MTRRfix4K_D8000:
|
3098 | 165d9b82 | aliguori | case MSR_MTRRfix4K_E0000:
|
3099 | 165d9b82 | aliguori | case MSR_MTRRfix4K_E8000:
|
3100 | 165d9b82 | aliguori | case MSR_MTRRfix4K_F0000:
|
3101 | 165d9b82 | aliguori | case MSR_MTRRfix4K_F8000:
|
3102 | 165d9b82 | aliguori | env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix4K_C0000 + 3] = val;
|
3103 | 165d9b82 | aliguori | break;
|
3104 | 165d9b82 | aliguori | case MSR_MTRRdefType:
|
3105 | 165d9b82 | aliguori | env->mtrr_deftype = val; |
3106 | 165d9b82 | aliguori | break;
|
3107 | eaa728ee | bellard | default:
|
3108 | eaa728ee | bellard | /* XXX: exception ? */
|
3109 | eaa728ee | bellard | break;
|
3110 | eaa728ee | bellard | } |
3111 | eaa728ee | bellard | } |
3112 | eaa728ee | bellard | |
3113 | eaa728ee | bellard | void helper_rdmsr(void) |
3114 | eaa728ee | bellard | { |
3115 | eaa728ee | bellard | uint64_t val; |
3116 | 872929aa | bellard | |
3117 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_MSR, 0);
|
3118 | 872929aa | bellard | |
3119 | eaa728ee | bellard | switch((uint32_t)ECX) {
|
3120 | eaa728ee | bellard | case MSR_IA32_SYSENTER_CS:
|
3121 | eaa728ee | bellard | val = env->sysenter_cs; |
3122 | eaa728ee | bellard | break;
|
3123 | eaa728ee | bellard | case MSR_IA32_SYSENTER_ESP:
|
3124 | eaa728ee | bellard | val = env->sysenter_esp; |
3125 | eaa728ee | bellard | break;
|
3126 | eaa728ee | bellard | case MSR_IA32_SYSENTER_EIP:
|
3127 | eaa728ee | bellard | val = env->sysenter_eip; |
3128 | eaa728ee | bellard | break;
|
3129 | eaa728ee | bellard | case MSR_IA32_APICBASE:
|
3130 | eaa728ee | bellard | val = cpu_get_apic_base(env); |
3131 | eaa728ee | bellard | break;
|
3132 | eaa728ee | bellard | case MSR_EFER:
|
3133 | eaa728ee | bellard | val = env->efer; |
3134 | eaa728ee | bellard | break;
|
3135 | eaa728ee | bellard | case MSR_STAR:
|
3136 | eaa728ee | bellard | val = env->star; |
3137 | eaa728ee | bellard | break;
|
3138 | eaa728ee | bellard | case MSR_PAT:
|
3139 | eaa728ee | bellard | val = env->pat; |
3140 | eaa728ee | bellard | break;
|
3141 | eaa728ee | bellard | case MSR_VM_HSAVE_PA:
|
3142 | eaa728ee | bellard | val = env->vm_hsave; |
3143 | eaa728ee | bellard | break;
|
3144 | d5e49a81 | balrog | case MSR_IA32_PERF_STATUS:
|
3145 | d5e49a81 | balrog | /* tsc_increment_by_tick */
|
3146 | d5e49a81 | balrog | val = 1000ULL;
|
3147 | d5e49a81 | balrog | /* CPU multiplier */
|
3148 | d5e49a81 | balrog | val |= (((uint64_t)4ULL) << 40); |
3149 | d5e49a81 | balrog | break;
|
3150 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
3151 | eaa728ee | bellard | case MSR_LSTAR:
|
3152 | eaa728ee | bellard | val = env->lstar; |
3153 | eaa728ee | bellard | break;
|
3154 | eaa728ee | bellard | case MSR_CSTAR:
|
3155 | eaa728ee | bellard | val = env->cstar; |
3156 | eaa728ee | bellard | break;
|
3157 | eaa728ee | bellard | case MSR_FMASK:
|
3158 | eaa728ee | bellard | val = env->fmask; |
3159 | eaa728ee | bellard | break;
|
3160 | eaa728ee | bellard | case MSR_FSBASE:
|
3161 | eaa728ee | bellard | val = env->segs[R_FS].base; |
3162 | eaa728ee | bellard | break;
|
3163 | eaa728ee | bellard | case MSR_GSBASE:
|
3164 | eaa728ee | bellard | val = env->segs[R_GS].base; |
3165 | eaa728ee | bellard | break;
|
3166 | eaa728ee | bellard | case MSR_KERNELGSBASE:
|
3167 | eaa728ee | bellard | val = env->kernelgsbase; |
3168 | eaa728ee | bellard | break;
|
3169 | eaa728ee | bellard | #endif
|
3170 | da260249 | bellard | #ifdef USE_KQEMU
|
3171 | da260249 | bellard | case MSR_QPI_COMMBASE:
|
3172 | da260249 | bellard | if (env->kqemu_enabled) {
|
3173 | da260249 | bellard | val = kqemu_comm_base; |
3174 | da260249 | bellard | } else {
|
3175 | da260249 | bellard | val = 0;
|
3176 | da260249 | bellard | } |
3177 | da260249 | bellard | break;
|
3178 | da260249 | bellard | #endif
|
3179 | 165d9b82 | aliguori | case MSR_MTRRphysBase(0): |
3180 | 165d9b82 | aliguori | case MSR_MTRRphysBase(1): |
3181 | 165d9b82 | aliguori | case MSR_MTRRphysBase(2): |
3182 | 165d9b82 | aliguori | case MSR_MTRRphysBase(3): |
3183 | 165d9b82 | aliguori | case MSR_MTRRphysBase(4): |
3184 | 165d9b82 | aliguori | case MSR_MTRRphysBase(5): |
3185 | 165d9b82 | aliguori | case MSR_MTRRphysBase(6): |
3186 | 165d9b82 | aliguori | case MSR_MTRRphysBase(7): |
3187 | 165d9b82 | aliguori | val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysBase(0)) / 2].base; |
3188 | 165d9b82 | aliguori | break;
|
3189 | 165d9b82 | aliguori | case MSR_MTRRphysMask(0): |
3190 | 165d9b82 | aliguori | case MSR_MTRRphysMask(1): |
3191 | 165d9b82 | aliguori | case MSR_MTRRphysMask(2): |
3192 | 165d9b82 | aliguori | case MSR_MTRRphysMask(3): |
3193 | 165d9b82 | aliguori | case MSR_MTRRphysMask(4): |
3194 | 165d9b82 | aliguori | case MSR_MTRRphysMask(5): |
3195 | 165d9b82 | aliguori | case MSR_MTRRphysMask(6): |
3196 | 165d9b82 | aliguori | case MSR_MTRRphysMask(7): |
3197 | 165d9b82 | aliguori | val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysMask(0)) / 2].mask; |
3198 | 165d9b82 | aliguori | break;
|
3199 | 165d9b82 | aliguori | case MSR_MTRRfix64K_00000:
|
3200 | 165d9b82 | aliguori | val = env->mtrr_fixed[0];
|
3201 | 165d9b82 | aliguori | break;
|
3202 | 165d9b82 | aliguori | case MSR_MTRRfix16K_80000:
|
3203 | 165d9b82 | aliguori | case MSR_MTRRfix16K_A0000:
|
3204 | 165d9b82 | aliguori | val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix16K_80000 + 1];
|
3205 | 165d9b82 | aliguori | break;
|
3206 | 165d9b82 | aliguori | case MSR_MTRRfix4K_C0000:
|
3207 | 165d9b82 | aliguori | case MSR_MTRRfix4K_C8000:
|
3208 | 165d9b82 | aliguori | case MSR_MTRRfix4K_D0000:
|
3209 | 165d9b82 | aliguori | case MSR_MTRRfix4K_D8000:
|
3210 | 165d9b82 | aliguori | case MSR_MTRRfix4K_E0000:
|
3211 | 165d9b82 | aliguori | case MSR_MTRRfix4K_E8000:
|
3212 | 165d9b82 | aliguori | case MSR_MTRRfix4K_F0000:
|
3213 | 165d9b82 | aliguori | case MSR_MTRRfix4K_F8000:
|
3214 | 165d9b82 | aliguori | val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix4K_C0000 + 3];
|
3215 | 165d9b82 | aliguori | break;
|
3216 | 165d9b82 | aliguori | case MSR_MTRRdefType:
|
3217 | 165d9b82 | aliguori | val = env->mtrr_deftype; |
3218 | 165d9b82 | aliguori | break;
|
3219 | dd5e3b17 | aliguori | case MSR_MTRRcap:
|
3220 | dd5e3b17 | aliguori | if (env->cpuid_features & CPUID_MTRR)
|
3221 | dd5e3b17 | aliguori | val = MSR_MTRRcap_VCNT | MSR_MTRRcap_FIXRANGE_SUPPORT | MSR_MTRRcap_WC_SUPPORTED; |
3222 | dd5e3b17 | aliguori | else
|
3223 | dd5e3b17 | aliguori | /* XXX: exception ? */
|
3224 | dd5e3b17 | aliguori | val = 0;
|
3225 | dd5e3b17 | aliguori | break;
|
3226 | eaa728ee | bellard | default:
|
3227 | eaa728ee | bellard | /* XXX: exception ? */
|
3228 | eaa728ee | bellard | val = 0;
|
3229 | eaa728ee | bellard | break;
|
3230 | eaa728ee | bellard | } |
3231 | eaa728ee | bellard | EAX = (uint32_t)(val); |
3232 | eaa728ee | bellard | EDX = (uint32_t)(val >> 32);
|
3233 | eaa728ee | bellard | } |
3234 | eaa728ee | bellard | #endif
|
3235 | eaa728ee | bellard | |
3236 | eaa728ee | bellard | target_ulong helper_lsl(target_ulong selector1) |
3237 | eaa728ee | bellard | { |
3238 | eaa728ee | bellard | unsigned int limit; |
3239 | eaa728ee | bellard | uint32_t e1, e2, eflags, selector; |
3240 | eaa728ee | bellard | int rpl, dpl, cpl, type;
|
3241 | eaa728ee | bellard | |
3242 | eaa728ee | bellard | selector = selector1 & 0xffff;
|
3243 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3244 | dc1ded53 | aliguori | if ((selector & 0xfffc) == 0) |
3245 | dc1ded53 | aliguori | goto fail;
|
3246 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
3247 | eaa728ee | bellard | goto fail;
|
3248 | eaa728ee | bellard | rpl = selector & 3;
|
3249 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
3250 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
3251 | eaa728ee | bellard | if (e2 & DESC_S_MASK) {
|
3252 | eaa728ee | bellard | if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
|
3253 | eaa728ee | bellard | /* conforming */
|
3254 | eaa728ee | bellard | } else {
|
3255 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
3256 | eaa728ee | bellard | goto fail;
|
3257 | eaa728ee | bellard | } |
3258 | eaa728ee | bellard | } else {
|
3259 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
|
3260 | eaa728ee | bellard | switch(type) {
|
3261 | eaa728ee | bellard | case 1: |
3262 | eaa728ee | bellard | case 2: |
3263 | eaa728ee | bellard | case 3: |
3264 | eaa728ee | bellard | case 9: |
3265 | eaa728ee | bellard | case 11: |
3266 | eaa728ee | bellard | break;
|
3267 | eaa728ee | bellard | default:
|
3268 | eaa728ee | bellard | goto fail;
|
3269 | eaa728ee | bellard | } |
3270 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl) {
|
3271 | eaa728ee | bellard | fail:
|
3272 | eaa728ee | bellard | CC_SRC = eflags & ~CC_Z; |
3273 | eaa728ee | bellard | return 0; |
3274 | eaa728ee | bellard | } |
3275 | eaa728ee | bellard | } |
3276 | eaa728ee | bellard | limit = get_seg_limit(e1, e2); |
3277 | eaa728ee | bellard | CC_SRC = eflags | CC_Z; |
3278 | eaa728ee | bellard | return limit;
|
3279 | eaa728ee | bellard | } |
3280 | eaa728ee | bellard | |
3281 | eaa728ee | bellard | target_ulong helper_lar(target_ulong selector1) |
3282 | eaa728ee | bellard | { |
3283 | eaa728ee | bellard | uint32_t e1, e2, eflags, selector; |
3284 | eaa728ee | bellard | int rpl, dpl, cpl, type;
|
3285 | eaa728ee | bellard | |
3286 | eaa728ee | bellard | selector = selector1 & 0xffff;
|
3287 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3288 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
3289 | eaa728ee | bellard | goto fail;
|
3290 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
3291 | eaa728ee | bellard | goto fail;
|
3292 | eaa728ee | bellard | rpl = selector & 3;
|
3293 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
3294 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
3295 | eaa728ee | bellard | if (e2 & DESC_S_MASK) {
|
3296 | eaa728ee | bellard | if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) {
|
3297 | eaa728ee | bellard | /* conforming */
|
3298 | eaa728ee | bellard | } else {
|
3299 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
3300 | eaa728ee | bellard | goto fail;
|
3301 | eaa728ee | bellard | } |
3302 | eaa728ee | bellard | } else {
|
3303 | eaa728ee | bellard | type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
|
3304 | eaa728ee | bellard | switch(type) {
|
3305 | eaa728ee | bellard | case 1: |
3306 | eaa728ee | bellard | case 2: |
3307 | eaa728ee | bellard | case 3: |
3308 | eaa728ee | bellard | case 4: |
3309 | eaa728ee | bellard | case 5: |
3310 | eaa728ee | bellard | case 9: |
3311 | eaa728ee | bellard | case 11: |
3312 | eaa728ee | bellard | case 12: |
3313 | eaa728ee | bellard | break;
|
3314 | eaa728ee | bellard | default:
|
3315 | eaa728ee | bellard | goto fail;
|
3316 | eaa728ee | bellard | } |
3317 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl) {
|
3318 | eaa728ee | bellard | fail:
|
3319 | eaa728ee | bellard | CC_SRC = eflags & ~CC_Z; |
3320 | eaa728ee | bellard | return 0; |
3321 | eaa728ee | bellard | } |
3322 | eaa728ee | bellard | } |
3323 | eaa728ee | bellard | CC_SRC = eflags | CC_Z; |
3324 | eaa728ee | bellard | return e2 & 0x00f0ff00; |
3325 | eaa728ee | bellard | } |
3326 | eaa728ee | bellard | |
3327 | eaa728ee | bellard | void helper_verr(target_ulong selector1)
|
3328 | eaa728ee | bellard | { |
3329 | eaa728ee | bellard | uint32_t e1, e2, eflags, selector; |
3330 | eaa728ee | bellard | int rpl, dpl, cpl;
|
3331 | eaa728ee | bellard | |
3332 | eaa728ee | bellard | selector = selector1 & 0xffff;
|
3333 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3334 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
3335 | eaa728ee | bellard | goto fail;
|
3336 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
3337 | eaa728ee | bellard | goto fail;
|
3338 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK))
|
3339 | eaa728ee | bellard | goto fail;
|
3340 | eaa728ee | bellard | rpl = selector & 3;
|
3341 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
3342 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
3343 | eaa728ee | bellard | if (e2 & DESC_CS_MASK) {
|
3344 | eaa728ee | bellard | if (!(e2 & DESC_R_MASK))
|
3345 | eaa728ee | bellard | goto fail;
|
3346 | eaa728ee | bellard | if (!(e2 & DESC_C_MASK)) {
|
3347 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
3348 | eaa728ee | bellard | goto fail;
|
3349 | eaa728ee | bellard | } |
3350 | eaa728ee | bellard | } else {
|
3351 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl) {
|
3352 | eaa728ee | bellard | fail:
|
3353 | eaa728ee | bellard | CC_SRC = eflags & ~CC_Z; |
3354 | eaa728ee | bellard | return;
|
3355 | eaa728ee | bellard | } |
3356 | eaa728ee | bellard | } |
3357 | eaa728ee | bellard | CC_SRC = eflags | CC_Z; |
3358 | eaa728ee | bellard | } |
3359 | eaa728ee | bellard | |
3360 | eaa728ee | bellard | void helper_verw(target_ulong selector1)
|
3361 | eaa728ee | bellard | { |
3362 | eaa728ee | bellard | uint32_t e1, e2, eflags, selector; |
3363 | eaa728ee | bellard | int rpl, dpl, cpl;
|
3364 | eaa728ee | bellard | |
3365 | eaa728ee | bellard | selector = selector1 & 0xffff;
|
3366 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3367 | eaa728ee | bellard | if ((selector & 0xfffc) == 0) |
3368 | eaa728ee | bellard | goto fail;
|
3369 | eaa728ee | bellard | if (load_segment(&e1, &e2, selector) != 0) |
3370 | eaa728ee | bellard | goto fail;
|
3371 | eaa728ee | bellard | if (!(e2 & DESC_S_MASK))
|
3372 | eaa728ee | bellard | goto fail;
|
3373 | eaa728ee | bellard | rpl = selector & 3;
|
3374 | eaa728ee | bellard | dpl = (e2 >> DESC_DPL_SHIFT) & 3;
|
3375 | eaa728ee | bellard | cpl = env->hflags & HF_CPL_MASK; |
3376 | eaa728ee | bellard | if (e2 & DESC_CS_MASK) {
|
3377 | eaa728ee | bellard | goto fail;
|
3378 | eaa728ee | bellard | } else {
|
3379 | eaa728ee | bellard | if (dpl < cpl || dpl < rpl)
|
3380 | eaa728ee | bellard | goto fail;
|
3381 | eaa728ee | bellard | if (!(e2 & DESC_W_MASK)) {
|
3382 | eaa728ee | bellard | fail:
|
3383 | eaa728ee | bellard | CC_SRC = eflags & ~CC_Z; |
3384 | eaa728ee | bellard | return;
|
3385 | eaa728ee | bellard | } |
3386 | eaa728ee | bellard | } |
3387 | eaa728ee | bellard | CC_SRC = eflags | CC_Z; |
3388 | eaa728ee | bellard | } |
3389 | eaa728ee | bellard | |
3390 | eaa728ee | bellard | /* x87 FPU helpers */
|
3391 | eaa728ee | bellard | |
3392 | eaa728ee | bellard | static void fpu_set_exception(int mask) |
3393 | eaa728ee | bellard | { |
3394 | eaa728ee | bellard | env->fpus |= mask; |
3395 | eaa728ee | bellard | if (env->fpus & (~env->fpuc & FPUC_EM))
|
3396 | eaa728ee | bellard | env->fpus |= FPUS_SE | FPUS_B; |
3397 | eaa728ee | bellard | } |
3398 | eaa728ee | bellard | |
3399 | eaa728ee | bellard | static inline CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b) |
3400 | eaa728ee | bellard | { |
3401 | eaa728ee | bellard | if (b == 0.0) |
3402 | eaa728ee | bellard | fpu_set_exception(FPUS_ZE); |
3403 | eaa728ee | bellard | return a / b;
|
3404 | eaa728ee | bellard | } |
3405 | eaa728ee | bellard | |
3406 | d9957a8b | blueswir1 | static void fpu_raise_exception(void) |
3407 | eaa728ee | bellard | { |
3408 | eaa728ee | bellard | if (env->cr[0] & CR0_NE_MASK) { |
3409 | eaa728ee | bellard | raise_exception(EXCP10_COPR); |
3410 | eaa728ee | bellard | } |
3411 | eaa728ee | bellard | #if !defined(CONFIG_USER_ONLY)
|
3412 | eaa728ee | bellard | else {
|
3413 | eaa728ee | bellard | cpu_set_ferr(env); |
3414 | eaa728ee | bellard | } |
3415 | eaa728ee | bellard | #endif
|
3416 | eaa728ee | bellard | } |
3417 | eaa728ee | bellard | |
3418 | eaa728ee | bellard | void helper_flds_FT0(uint32_t val)
|
3419 | eaa728ee | bellard | { |
3420 | eaa728ee | bellard | union {
|
3421 | eaa728ee | bellard | float32 f; |
3422 | eaa728ee | bellard | uint32_t i; |
3423 | eaa728ee | bellard | } u; |
3424 | eaa728ee | bellard | u.i = val; |
3425 | eaa728ee | bellard | FT0 = float32_to_floatx(u.f, &env->fp_status); |
3426 | eaa728ee | bellard | } |
3427 | eaa728ee | bellard | |
3428 | eaa728ee | bellard | void helper_fldl_FT0(uint64_t val)
|
3429 | eaa728ee | bellard | { |
3430 | eaa728ee | bellard | union {
|
3431 | eaa728ee | bellard | float64 f; |
3432 | eaa728ee | bellard | uint64_t i; |
3433 | eaa728ee | bellard | } u; |
3434 | eaa728ee | bellard | u.i = val; |
3435 | eaa728ee | bellard | FT0 = float64_to_floatx(u.f, &env->fp_status); |
3436 | eaa728ee | bellard | } |
3437 | eaa728ee | bellard | |
3438 | eaa728ee | bellard | void helper_fildl_FT0(int32_t val)
|
3439 | eaa728ee | bellard | { |
3440 | eaa728ee | bellard | FT0 = int32_to_floatx(val, &env->fp_status); |
3441 | eaa728ee | bellard | } |
3442 | eaa728ee | bellard | |
3443 | eaa728ee | bellard | void helper_flds_ST0(uint32_t val)
|
3444 | eaa728ee | bellard | { |
3445 | eaa728ee | bellard | int new_fpstt;
|
3446 | eaa728ee | bellard | union {
|
3447 | eaa728ee | bellard | float32 f; |
3448 | eaa728ee | bellard | uint32_t i; |
3449 | eaa728ee | bellard | } u; |
3450 | eaa728ee | bellard | new_fpstt = (env->fpstt - 1) & 7; |
3451 | eaa728ee | bellard | u.i = val; |
3452 | eaa728ee | bellard | env->fpregs[new_fpstt].d = float32_to_floatx(u.f, &env->fp_status); |
3453 | eaa728ee | bellard | env->fpstt = new_fpstt; |
3454 | eaa728ee | bellard | env->fptags[new_fpstt] = 0; /* validate stack entry */ |
3455 | eaa728ee | bellard | } |
3456 | eaa728ee | bellard | |
3457 | eaa728ee | bellard | void helper_fldl_ST0(uint64_t val)
|
3458 | eaa728ee | bellard | { |
3459 | eaa728ee | bellard | int new_fpstt;
|
3460 | eaa728ee | bellard | union {
|
3461 | eaa728ee | bellard | float64 f; |
3462 | eaa728ee | bellard | uint64_t i; |
3463 | eaa728ee | bellard | } u; |
3464 | eaa728ee | bellard | new_fpstt = (env->fpstt - 1) & 7; |
3465 | eaa728ee | bellard | u.i = val; |
3466 | eaa728ee | bellard | env->fpregs[new_fpstt].d = float64_to_floatx(u.f, &env->fp_status); |
3467 | eaa728ee | bellard | env->fpstt = new_fpstt; |
3468 | eaa728ee | bellard | env->fptags[new_fpstt] = 0; /* validate stack entry */ |
3469 | eaa728ee | bellard | } |
3470 | eaa728ee | bellard | |
3471 | eaa728ee | bellard | void helper_fildl_ST0(int32_t val)
|
3472 | eaa728ee | bellard | { |
3473 | eaa728ee | bellard | int new_fpstt;
|
3474 | eaa728ee | bellard | new_fpstt = (env->fpstt - 1) & 7; |
3475 | eaa728ee | bellard | env->fpregs[new_fpstt].d = int32_to_floatx(val, &env->fp_status); |
3476 | eaa728ee | bellard | env->fpstt = new_fpstt; |
3477 | eaa728ee | bellard | env->fptags[new_fpstt] = 0; /* validate stack entry */ |
3478 | eaa728ee | bellard | } |
3479 | eaa728ee | bellard | |
3480 | eaa728ee | bellard | void helper_fildll_ST0(int64_t val)
|
3481 | eaa728ee | bellard | { |
3482 | eaa728ee | bellard | int new_fpstt;
|
3483 | eaa728ee | bellard | new_fpstt = (env->fpstt - 1) & 7; |
3484 | eaa728ee | bellard | env->fpregs[new_fpstt].d = int64_to_floatx(val, &env->fp_status); |
3485 | eaa728ee | bellard | env->fpstt = new_fpstt; |
3486 | eaa728ee | bellard | env->fptags[new_fpstt] = 0; /* validate stack entry */ |
3487 | eaa728ee | bellard | } |
3488 | eaa728ee | bellard | |
3489 | eaa728ee | bellard | uint32_t helper_fsts_ST0(void)
|
3490 | eaa728ee | bellard | { |
3491 | eaa728ee | bellard | union {
|
3492 | eaa728ee | bellard | float32 f; |
3493 | eaa728ee | bellard | uint32_t i; |
3494 | eaa728ee | bellard | } u; |
3495 | eaa728ee | bellard | u.f = floatx_to_float32(ST0, &env->fp_status); |
3496 | eaa728ee | bellard | return u.i;
|
3497 | eaa728ee | bellard | } |
3498 | eaa728ee | bellard | |
3499 | eaa728ee | bellard | uint64_t helper_fstl_ST0(void)
|
3500 | eaa728ee | bellard | { |
3501 | eaa728ee | bellard | union {
|
3502 | eaa728ee | bellard | float64 f; |
3503 | eaa728ee | bellard | uint64_t i; |
3504 | eaa728ee | bellard | } u; |
3505 | eaa728ee | bellard | u.f = floatx_to_float64(ST0, &env->fp_status); |
3506 | eaa728ee | bellard | return u.i;
|
3507 | eaa728ee | bellard | } |
3508 | eaa728ee | bellard | |
3509 | eaa728ee | bellard | int32_t helper_fist_ST0(void)
|
3510 | eaa728ee | bellard | { |
3511 | eaa728ee | bellard | int32_t val; |
3512 | eaa728ee | bellard | val = floatx_to_int32(ST0, &env->fp_status); |
3513 | eaa728ee | bellard | if (val != (int16_t)val)
|
3514 | eaa728ee | bellard | val = -32768;
|
3515 | eaa728ee | bellard | return val;
|
3516 | eaa728ee | bellard | } |
3517 | eaa728ee | bellard | |
3518 | eaa728ee | bellard | int32_t helper_fistl_ST0(void)
|
3519 | eaa728ee | bellard | { |
3520 | eaa728ee | bellard | int32_t val; |
3521 | eaa728ee | bellard | val = floatx_to_int32(ST0, &env->fp_status); |
3522 | eaa728ee | bellard | return val;
|
3523 | eaa728ee | bellard | } |
3524 | eaa728ee | bellard | |
3525 | eaa728ee | bellard | int64_t helper_fistll_ST0(void)
|
3526 | eaa728ee | bellard | { |
3527 | eaa728ee | bellard | int64_t val; |
3528 | eaa728ee | bellard | val = floatx_to_int64(ST0, &env->fp_status); |
3529 | eaa728ee | bellard | return val;
|
3530 | eaa728ee | bellard | } |
3531 | eaa728ee | bellard | |
3532 | eaa728ee | bellard | int32_t helper_fistt_ST0(void)
|
3533 | eaa728ee | bellard | { |
3534 | eaa728ee | bellard | int32_t val; |
3535 | eaa728ee | bellard | val = floatx_to_int32_round_to_zero(ST0, &env->fp_status); |
3536 | eaa728ee | bellard | if (val != (int16_t)val)
|
3537 | eaa728ee | bellard | val = -32768;
|
3538 | eaa728ee | bellard | return val;
|
3539 | eaa728ee | bellard | } |
3540 | eaa728ee | bellard | |
3541 | eaa728ee | bellard | int32_t helper_fisttl_ST0(void)
|
3542 | eaa728ee | bellard | { |
3543 | eaa728ee | bellard | int32_t val; |
3544 | eaa728ee | bellard | val = floatx_to_int32_round_to_zero(ST0, &env->fp_status); |
3545 | eaa728ee | bellard | return val;
|
3546 | eaa728ee | bellard | } |
3547 | eaa728ee | bellard | |
3548 | eaa728ee | bellard | int64_t helper_fisttll_ST0(void)
|
3549 | eaa728ee | bellard | { |
3550 | eaa728ee | bellard | int64_t val; |
3551 | eaa728ee | bellard | val = floatx_to_int64_round_to_zero(ST0, &env->fp_status); |
3552 | eaa728ee | bellard | return val;
|
3553 | eaa728ee | bellard | } |
3554 | eaa728ee | bellard | |
3555 | eaa728ee | bellard | void helper_fldt_ST0(target_ulong ptr)
|
3556 | eaa728ee | bellard | { |
3557 | eaa728ee | bellard | int new_fpstt;
|
3558 | eaa728ee | bellard | new_fpstt = (env->fpstt - 1) & 7; |
3559 | eaa728ee | bellard | env->fpregs[new_fpstt].d = helper_fldt(ptr); |
3560 | eaa728ee | bellard | env->fpstt = new_fpstt; |
3561 | eaa728ee | bellard | env->fptags[new_fpstt] = 0; /* validate stack entry */ |
3562 | eaa728ee | bellard | } |
3563 | eaa728ee | bellard | |
3564 | eaa728ee | bellard | void helper_fstt_ST0(target_ulong ptr)
|
3565 | eaa728ee | bellard | { |
3566 | eaa728ee | bellard | helper_fstt(ST0, ptr); |
3567 | eaa728ee | bellard | } |
3568 | eaa728ee | bellard | |
3569 | eaa728ee | bellard | void helper_fpush(void) |
3570 | eaa728ee | bellard | { |
3571 | eaa728ee | bellard | fpush(); |
3572 | eaa728ee | bellard | } |
3573 | eaa728ee | bellard | |
3574 | eaa728ee | bellard | void helper_fpop(void) |
3575 | eaa728ee | bellard | { |
3576 | eaa728ee | bellard | fpop(); |
3577 | eaa728ee | bellard | } |
3578 | eaa728ee | bellard | |
3579 | eaa728ee | bellard | void helper_fdecstp(void) |
3580 | eaa728ee | bellard | { |
3581 | eaa728ee | bellard | env->fpstt = (env->fpstt - 1) & 7; |
3582 | eaa728ee | bellard | env->fpus &= (~0x4700);
|
3583 | eaa728ee | bellard | } |
3584 | eaa728ee | bellard | |
3585 | eaa728ee | bellard | void helper_fincstp(void) |
3586 | eaa728ee | bellard | { |
3587 | eaa728ee | bellard | env->fpstt = (env->fpstt + 1) & 7; |
3588 | eaa728ee | bellard | env->fpus &= (~0x4700);
|
3589 | eaa728ee | bellard | } |
3590 | eaa728ee | bellard | |
3591 | eaa728ee | bellard | /* FPU move */
|
3592 | eaa728ee | bellard | |
3593 | eaa728ee | bellard | void helper_ffree_STN(int st_index) |
3594 | eaa728ee | bellard | { |
3595 | eaa728ee | bellard | env->fptags[(env->fpstt + st_index) & 7] = 1; |
3596 | eaa728ee | bellard | } |
3597 | eaa728ee | bellard | |
3598 | eaa728ee | bellard | void helper_fmov_ST0_FT0(void) |
3599 | eaa728ee | bellard | { |
3600 | eaa728ee | bellard | ST0 = FT0; |
3601 | eaa728ee | bellard | } |
3602 | eaa728ee | bellard | |
3603 | eaa728ee | bellard | void helper_fmov_FT0_STN(int st_index) |
3604 | eaa728ee | bellard | { |
3605 | eaa728ee | bellard | FT0 = ST(st_index); |
3606 | eaa728ee | bellard | } |
3607 | eaa728ee | bellard | |
3608 | eaa728ee | bellard | void helper_fmov_ST0_STN(int st_index) |
3609 | eaa728ee | bellard | { |
3610 | eaa728ee | bellard | ST0 = ST(st_index); |
3611 | eaa728ee | bellard | } |
3612 | eaa728ee | bellard | |
3613 | eaa728ee | bellard | void helper_fmov_STN_ST0(int st_index) |
3614 | eaa728ee | bellard | { |
3615 | eaa728ee | bellard | ST(st_index) = ST0; |
3616 | eaa728ee | bellard | } |
3617 | eaa728ee | bellard | |
3618 | eaa728ee | bellard | void helper_fxchg_ST0_STN(int st_index) |
3619 | eaa728ee | bellard | { |
3620 | eaa728ee | bellard | CPU86_LDouble tmp; |
3621 | eaa728ee | bellard | tmp = ST(st_index); |
3622 | eaa728ee | bellard | ST(st_index) = ST0; |
3623 | eaa728ee | bellard | ST0 = tmp; |
3624 | eaa728ee | bellard | } |
3625 | eaa728ee | bellard | |
3626 | eaa728ee | bellard | /* FPU operations */
|
3627 | eaa728ee | bellard | |
3628 | eaa728ee | bellard | static const int fcom_ccval[4] = {0x0100, 0x4000, 0x0000, 0x4500}; |
3629 | eaa728ee | bellard | |
3630 | eaa728ee | bellard | void helper_fcom_ST0_FT0(void) |
3631 | eaa728ee | bellard | { |
3632 | eaa728ee | bellard | int ret;
|
3633 | eaa728ee | bellard | |
3634 | eaa728ee | bellard | ret = floatx_compare(ST0, FT0, &env->fp_status); |
3635 | eaa728ee | bellard | env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1]; |
3636 | eaa728ee | bellard | } |
3637 | eaa728ee | bellard | |
3638 | eaa728ee | bellard | void helper_fucom_ST0_FT0(void) |
3639 | eaa728ee | bellard | { |
3640 | eaa728ee | bellard | int ret;
|
3641 | eaa728ee | bellard | |
3642 | eaa728ee | bellard | ret = floatx_compare_quiet(ST0, FT0, &env->fp_status); |
3643 | eaa728ee | bellard | env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret+ 1]; |
3644 | eaa728ee | bellard | } |
3645 | eaa728ee | bellard | |
3646 | eaa728ee | bellard | static const int fcomi_ccval[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C}; |
3647 | eaa728ee | bellard | |
3648 | eaa728ee | bellard | void helper_fcomi_ST0_FT0(void) |
3649 | eaa728ee | bellard | { |
3650 | eaa728ee | bellard | int eflags;
|
3651 | eaa728ee | bellard | int ret;
|
3652 | eaa728ee | bellard | |
3653 | eaa728ee | bellard | ret = floatx_compare(ST0, FT0, &env->fp_status); |
3654 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3655 | eaa728ee | bellard | eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
|
3656 | eaa728ee | bellard | CC_SRC = eflags; |
3657 | eaa728ee | bellard | } |
3658 | eaa728ee | bellard | |
3659 | eaa728ee | bellard | void helper_fucomi_ST0_FT0(void) |
3660 | eaa728ee | bellard | { |
3661 | eaa728ee | bellard | int eflags;
|
3662 | eaa728ee | bellard | int ret;
|
3663 | eaa728ee | bellard | |
3664 | eaa728ee | bellard | ret = floatx_compare_quiet(ST0, FT0, &env->fp_status); |
3665 | a7812ae4 | pbrook | eflags = helper_cc_compute_all(CC_OP); |
3666 | eaa728ee | bellard | eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
|
3667 | eaa728ee | bellard | CC_SRC = eflags; |
3668 | eaa728ee | bellard | } |
3669 | eaa728ee | bellard | |
3670 | eaa728ee | bellard | void helper_fadd_ST0_FT0(void) |
3671 | eaa728ee | bellard | { |
3672 | eaa728ee | bellard | ST0 += FT0; |
3673 | eaa728ee | bellard | } |
3674 | eaa728ee | bellard | |
3675 | eaa728ee | bellard | void helper_fmul_ST0_FT0(void) |
3676 | eaa728ee | bellard | { |
3677 | eaa728ee | bellard | ST0 *= FT0; |
3678 | eaa728ee | bellard | } |
3679 | eaa728ee | bellard | |
3680 | eaa728ee | bellard | void helper_fsub_ST0_FT0(void) |
3681 | eaa728ee | bellard | { |
3682 | eaa728ee | bellard | ST0 -= FT0; |
3683 | eaa728ee | bellard | } |
3684 | eaa728ee | bellard | |
3685 | eaa728ee | bellard | void helper_fsubr_ST0_FT0(void) |
3686 | eaa728ee | bellard | { |
3687 | eaa728ee | bellard | ST0 = FT0 - ST0; |
3688 | eaa728ee | bellard | } |
3689 | eaa728ee | bellard | |
3690 | eaa728ee | bellard | void helper_fdiv_ST0_FT0(void) |
3691 | eaa728ee | bellard | { |
3692 | eaa728ee | bellard | ST0 = helper_fdiv(ST0, FT0); |
3693 | eaa728ee | bellard | } |
3694 | eaa728ee | bellard | |
3695 | eaa728ee | bellard | void helper_fdivr_ST0_FT0(void) |
3696 | eaa728ee | bellard | { |
3697 | eaa728ee | bellard | ST0 = helper_fdiv(FT0, ST0); |
3698 | eaa728ee | bellard | } |
3699 | eaa728ee | bellard | |
3700 | eaa728ee | bellard | /* fp operations between STN and ST0 */
|
3701 | eaa728ee | bellard | |
3702 | eaa728ee | bellard | void helper_fadd_STN_ST0(int st_index) |
3703 | eaa728ee | bellard | { |
3704 | eaa728ee | bellard | ST(st_index) += ST0; |
3705 | eaa728ee | bellard | } |
3706 | eaa728ee | bellard | |
3707 | eaa728ee | bellard | void helper_fmul_STN_ST0(int st_index) |
3708 | eaa728ee | bellard | { |
3709 | eaa728ee | bellard | ST(st_index) *= ST0; |
3710 | eaa728ee | bellard | } |
3711 | eaa728ee | bellard | |
3712 | eaa728ee | bellard | void helper_fsub_STN_ST0(int st_index) |
3713 | eaa728ee | bellard | { |
3714 | eaa728ee | bellard | ST(st_index) -= ST0; |
3715 | eaa728ee | bellard | } |
3716 | eaa728ee | bellard | |
3717 | eaa728ee | bellard | void helper_fsubr_STN_ST0(int st_index) |
3718 | eaa728ee | bellard | { |
3719 | eaa728ee | bellard | CPU86_LDouble *p; |
3720 | eaa728ee | bellard | p = &ST(st_index); |
3721 | eaa728ee | bellard | *p = ST0 - *p; |
3722 | eaa728ee | bellard | } |
3723 | eaa728ee | bellard | |
3724 | eaa728ee | bellard | void helper_fdiv_STN_ST0(int st_index) |
3725 | eaa728ee | bellard | { |
3726 | eaa728ee | bellard | CPU86_LDouble *p; |
3727 | eaa728ee | bellard | p = &ST(st_index); |
3728 | eaa728ee | bellard | *p = helper_fdiv(*p, ST0); |
3729 | eaa728ee | bellard | } |
3730 | eaa728ee | bellard | |
3731 | eaa728ee | bellard | void helper_fdivr_STN_ST0(int st_index) |
3732 | eaa728ee | bellard | { |
3733 | eaa728ee | bellard | CPU86_LDouble *p; |
3734 | eaa728ee | bellard | p = &ST(st_index); |
3735 | eaa728ee | bellard | *p = helper_fdiv(ST0, *p); |
3736 | eaa728ee | bellard | } |
3737 | eaa728ee | bellard | |
3738 | eaa728ee | bellard | /* misc FPU operations */
|
3739 | eaa728ee | bellard | void helper_fchs_ST0(void) |
3740 | eaa728ee | bellard | { |
3741 | eaa728ee | bellard | ST0 = floatx_chs(ST0); |
3742 | eaa728ee | bellard | } |
3743 | eaa728ee | bellard | |
3744 | eaa728ee | bellard | void helper_fabs_ST0(void) |
3745 | eaa728ee | bellard | { |
3746 | eaa728ee | bellard | ST0 = floatx_abs(ST0); |
3747 | eaa728ee | bellard | } |
3748 | eaa728ee | bellard | |
3749 | eaa728ee | bellard | void helper_fld1_ST0(void) |
3750 | eaa728ee | bellard | { |
3751 | eaa728ee | bellard | ST0 = f15rk[1];
|
3752 | eaa728ee | bellard | } |
3753 | eaa728ee | bellard | |
3754 | eaa728ee | bellard | void helper_fldl2t_ST0(void) |
3755 | eaa728ee | bellard | { |
3756 | eaa728ee | bellard | ST0 = f15rk[6];
|
3757 | eaa728ee | bellard | } |
3758 | eaa728ee | bellard | |
3759 | eaa728ee | bellard | void helper_fldl2e_ST0(void) |
3760 | eaa728ee | bellard | { |
3761 | eaa728ee | bellard | ST0 = f15rk[5];
|
3762 | eaa728ee | bellard | } |
3763 | eaa728ee | bellard | |
3764 | eaa728ee | bellard | void helper_fldpi_ST0(void) |
3765 | eaa728ee | bellard | { |
3766 | eaa728ee | bellard | ST0 = f15rk[2];
|
3767 | eaa728ee | bellard | } |
3768 | eaa728ee | bellard | |
3769 | eaa728ee | bellard | void helper_fldlg2_ST0(void) |
3770 | eaa728ee | bellard | { |
3771 | eaa728ee | bellard | ST0 = f15rk[3];
|
3772 | eaa728ee | bellard | } |
3773 | eaa728ee | bellard | |
3774 | eaa728ee | bellard | void helper_fldln2_ST0(void) |
3775 | eaa728ee | bellard | { |
3776 | eaa728ee | bellard | ST0 = f15rk[4];
|
3777 | eaa728ee | bellard | } |
3778 | eaa728ee | bellard | |
3779 | eaa728ee | bellard | void helper_fldz_ST0(void) |
3780 | eaa728ee | bellard | { |
3781 | eaa728ee | bellard | ST0 = f15rk[0];
|
3782 | eaa728ee | bellard | } |
3783 | eaa728ee | bellard | |
3784 | eaa728ee | bellard | void helper_fldz_FT0(void) |
3785 | eaa728ee | bellard | { |
3786 | eaa728ee | bellard | FT0 = f15rk[0];
|
3787 | eaa728ee | bellard | } |
3788 | eaa728ee | bellard | |
3789 | eaa728ee | bellard | uint32_t helper_fnstsw(void)
|
3790 | eaa728ee | bellard | { |
3791 | eaa728ee | bellard | return (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
3792 | eaa728ee | bellard | } |
3793 | eaa728ee | bellard | |
3794 | eaa728ee | bellard | uint32_t helper_fnstcw(void)
|
3795 | eaa728ee | bellard | { |
3796 | eaa728ee | bellard | return env->fpuc;
|
3797 | eaa728ee | bellard | } |
3798 | eaa728ee | bellard | |
3799 | eaa728ee | bellard | static void update_fp_status(void) |
3800 | eaa728ee | bellard | { |
3801 | eaa728ee | bellard | int rnd_type;
|
3802 | eaa728ee | bellard | |
3803 | eaa728ee | bellard | /* set rounding mode */
|
3804 | eaa728ee | bellard | switch(env->fpuc & RC_MASK) {
|
3805 | eaa728ee | bellard | default:
|
3806 | eaa728ee | bellard | case RC_NEAR:
|
3807 | eaa728ee | bellard | rnd_type = float_round_nearest_even; |
3808 | eaa728ee | bellard | break;
|
3809 | eaa728ee | bellard | case RC_DOWN:
|
3810 | eaa728ee | bellard | rnd_type = float_round_down; |
3811 | eaa728ee | bellard | break;
|
3812 | eaa728ee | bellard | case RC_UP:
|
3813 | eaa728ee | bellard | rnd_type = float_round_up; |
3814 | eaa728ee | bellard | break;
|
3815 | eaa728ee | bellard | case RC_CHOP:
|
3816 | eaa728ee | bellard | rnd_type = float_round_to_zero; |
3817 | eaa728ee | bellard | break;
|
3818 | eaa728ee | bellard | } |
3819 | eaa728ee | bellard | set_float_rounding_mode(rnd_type, &env->fp_status); |
3820 | eaa728ee | bellard | #ifdef FLOATX80
|
3821 | eaa728ee | bellard | switch((env->fpuc >> 8) & 3) { |
3822 | eaa728ee | bellard | case 0: |
3823 | eaa728ee | bellard | rnd_type = 32;
|
3824 | eaa728ee | bellard | break;
|
3825 | eaa728ee | bellard | case 2: |
3826 | eaa728ee | bellard | rnd_type = 64;
|
3827 | eaa728ee | bellard | break;
|
3828 | eaa728ee | bellard | case 3: |
3829 | eaa728ee | bellard | default:
|
3830 | eaa728ee | bellard | rnd_type = 80;
|
3831 | eaa728ee | bellard | break;
|
3832 | eaa728ee | bellard | } |
3833 | eaa728ee | bellard | set_floatx80_rounding_precision(rnd_type, &env->fp_status); |
3834 | eaa728ee | bellard | #endif
|
3835 | eaa728ee | bellard | } |
3836 | eaa728ee | bellard | |
3837 | eaa728ee | bellard | void helper_fldcw(uint32_t val)
|
3838 | eaa728ee | bellard | { |
3839 | eaa728ee | bellard | env->fpuc = val; |
3840 | eaa728ee | bellard | update_fp_status(); |
3841 | eaa728ee | bellard | } |
3842 | eaa728ee | bellard | |
3843 | eaa728ee | bellard | void helper_fclex(void) |
3844 | eaa728ee | bellard | { |
3845 | eaa728ee | bellard | env->fpus &= 0x7f00;
|
3846 | eaa728ee | bellard | } |
3847 | eaa728ee | bellard | |
3848 | eaa728ee | bellard | void helper_fwait(void) |
3849 | eaa728ee | bellard | { |
3850 | eaa728ee | bellard | if (env->fpus & FPUS_SE)
|
3851 | eaa728ee | bellard | fpu_raise_exception(); |
3852 | eaa728ee | bellard | } |
3853 | eaa728ee | bellard | |
3854 | eaa728ee | bellard | void helper_fninit(void) |
3855 | eaa728ee | bellard | { |
3856 | eaa728ee | bellard | env->fpus = 0;
|
3857 | eaa728ee | bellard | env->fpstt = 0;
|
3858 | eaa728ee | bellard | env->fpuc = 0x37f;
|
3859 | eaa728ee | bellard | env->fptags[0] = 1; |
3860 | eaa728ee | bellard | env->fptags[1] = 1; |
3861 | eaa728ee | bellard | env->fptags[2] = 1; |
3862 | eaa728ee | bellard | env->fptags[3] = 1; |
3863 | eaa728ee | bellard | env->fptags[4] = 1; |
3864 | eaa728ee | bellard | env->fptags[5] = 1; |
3865 | eaa728ee | bellard | env->fptags[6] = 1; |
3866 | eaa728ee | bellard | env->fptags[7] = 1; |
3867 | eaa728ee | bellard | } |
3868 | eaa728ee | bellard | |
3869 | eaa728ee | bellard | /* BCD ops */
|
3870 | eaa728ee | bellard | |
3871 | eaa728ee | bellard | void helper_fbld_ST0(target_ulong ptr)
|
3872 | eaa728ee | bellard | { |
3873 | eaa728ee | bellard | CPU86_LDouble tmp; |
3874 | eaa728ee | bellard | uint64_t val; |
3875 | eaa728ee | bellard | unsigned int v; |
3876 | eaa728ee | bellard | int i;
|
3877 | eaa728ee | bellard | |
3878 | eaa728ee | bellard | val = 0;
|
3879 | eaa728ee | bellard | for(i = 8; i >= 0; i--) { |
3880 | eaa728ee | bellard | v = ldub(ptr + i); |
3881 | eaa728ee | bellard | val = (val * 100) + ((v >> 4) * 10) + (v & 0xf); |
3882 | eaa728ee | bellard | } |
3883 | eaa728ee | bellard | tmp = val; |
3884 | eaa728ee | bellard | if (ldub(ptr + 9) & 0x80) |
3885 | eaa728ee | bellard | tmp = -tmp; |
3886 | eaa728ee | bellard | fpush(); |
3887 | eaa728ee | bellard | ST0 = tmp; |
3888 | eaa728ee | bellard | } |
3889 | eaa728ee | bellard | |
3890 | eaa728ee | bellard | void helper_fbst_ST0(target_ulong ptr)
|
3891 | eaa728ee | bellard | { |
3892 | eaa728ee | bellard | int v;
|
3893 | eaa728ee | bellard | target_ulong mem_ref, mem_end; |
3894 | eaa728ee | bellard | int64_t val; |
3895 | eaa728ee | bellard | |
3896 | eaa728ee | bellard | val = floatx_to_int64(ST0, &env->fp_status); |
3897 | eaa728ee | bellard | mem_ref = ptr; |
3898 | eaa728ee | bellard | mem_end = mem_ref + 9;
|
3899 | eaa728ee | bellard | if (val < 0) { |
3900 | eaa728ee | bellard | stb(mem_end, 0x80);
|
3901 | eaa728ee | bellard | val = -val; |
3902 | eaa728ee | bellard | } else {
|
3903 | eaa728ee | bellard | stb(mem_end, 0x00);
|
3904 | eaa728ee | bellard | } |
3905 | eaa728ee | bellard | while (mem_ref < mem_end) {
|
3906 | eaa728ee | bellard | if (val == 0) |
3907 | eaa728ee | bellard | break;
|
3908 | eaa728ee | bellard | v = val % 100;
|
3909 | eaa728ee | bellard | val = val / 100;
|
3910 | eaa728ee | bellard | v = ((v / 10) << 4) | (v % 10); |
3911 | eaa728ee | bellard | stb(mem_ref++, v); |
3912 | eaa728ee | bellard | } |
3913 | eaa728ee | bellard | while (mem_ref < mem_end) {
|
3914 | eaa728ee | bellard | stb(mem_ref++, 0);
|
3915 | eaa728ee | bellard | } |
3916 | eaa728ee | bellard | } |
3917 | eaa728ee | bellard | |
3918 | eaa728ee | bellard | void helper_f2xm1(void) |
3919 | eaa728ee | bellard | { |
3920 | eaa728ee | bellard | ST0 = pow(2.0,ST0) - 1.0; |
3921 | eaa728ee | bellard | } |
3922 | eaa728ee | bellard | |
3923 | eaa728ee | bellard | void helper_fyl2x(void) |
3924 | eaa728ee | bellard | { |
3925 | eaa728ee | bellard | CPU86_LDouble fptemp; |
3926 | eaa728ee | bellard | |
3927 | eaa728ee | bellard | fptemp = ST0; |
3928 | eaa728ee | bellard | if (fptemp>0.0){ |
3929 | eaa728ee | bellard | fptemp = log(fptemp)/log(2.0); /* log2(ST) */ |
3930 | eaa728ee | bellard | ST1 *= fptemp; |
3931 | eaa728ee | bellard | fpop(); |
3932 | eaa728ee | bellard | } else {
|
3933 | eaa728ee | bellard | env->fpus &= (~0x4700);
|
3934 | eaa728ee | bellard | env->fpus |= 0x400;
|
3935 | eaa728ee | bellard | } |
3936 | eaa728ee | bellard | } |
3937 | eaa728ee | bellard | |
3938 | eaa728ee | bellard | void helper_fptan(void) |
3939 | eaa728ee | bellard | { |
3940 | eaa728ee | bellard | CPU86_LDouble fptemp; |
3941 | eaa728ee | bellard | |
3942 | eaa728ee | bellard | fptemp = ST0; |
3943 | eaa728ee | bellard | if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
|
3944 | eaa728ee | bellard | env->fpus |= 0x400;
|
3945 | eaa728ee | bellard | } else {
|
3946 | eaa728ee | bellard | ST0 = tan(fptemp); |
3947 | eaa728ee | bellard | fpush(); |
3948 | eaa728ee | bellard | ST0 = 1.0; |
3949 | eaa728ee | bellard | env->fpus &= (~0x400); /* C2 <-- 0 */ |
3950 | eaa728ee | bellard | /* the above code is for |arg| < 2**52 only */
|
3951 | eaa728ee | bellard | } |
3952 | eaa728ee | bellard | } |
3953 | eaa728ee | bellard | |
3954 | eaa728ee | bellard | void helper_fpatan(void) |
3955 | eaa728ee | bellard | { |
3956 | eaa728ee | bellard | CPU86_LDouble fptemp, fpsrcop; |
3957 | eaa728ee | bellard | |
3958 | eaa728ee | bellard | fpsrcop = ST1; |
3959 | eaa728ee | bellard | fptemp = ST0; |
3960 | eaa728ee | bellard | ST1 = atan2(fpsrcop,fptemp); |
3961 | eaa728ee | bellard | fpop(); |
3962 | eaa728ee | bellard | } |
3963 | eaa728ee | bellard | |
3964 | eaa728ee | bellard | void helper_fxtract(void) |
3965 | eaa728ee | bellard | { |
3966 | eaa728ee | bellard | CPU86_LDoubleU temp; |
3967 | eaa728ee | bellard | unsigned int expdif; |
3968 | eaa728ee | bellard | |
3969 | eaa728ee | bellard | temp.d = ST0; |
3970 | eaa728ee | bellard | expdif = EXPD(temp) - EXPBIAS; |
3971 | eaa728ee | bellard | /*DP exponent bias*/
|
3972 | eaa728ee | bellard | ST0 = expdif; |
3973 | eaa728ee | bellard | fpush(); |
3974 | eaa728ee | bellard | BIASEXPONENT(temp); |
3975 | eaa728ee | bellard | ST0 = temp.d; |
3976 | eaa728ee | bellard | } |
3977 | eaa728ee | bellard | |
3978 | eaa728ee | bellard | void helper_fprem1(void) |
3979 | eaa728ee | bellard | { |
3980 | eaa728ee | bellard | CPU86_LDouble dblq, fpsrcop, fptemp; |
3981 | eaa728ee | bellard | CPU86_LDoubleU fpsrcop1, fptemp1; |
3982 | eaa728ee | bellard | int expdif;
|
3983 | eaa728ee | bellard | signed long long int q; |
3984 | eaa728ee | bellard | |
3985 | eaa728ee | bellard | if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) { |
3986 | eaa728ee | bellard | ST0 = 0.0 / 0.0; /* NaN */ |
3987 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
3988 | eaa728ee | bellard | return;
|
3989 | eaa728ee | bellard | } |
3990 | eaa728ee | bellard | |
3991 | eaa728ee | bellard | fpsrcop = ST0; |
3992 | eaa728ee | bellard | fptemp = ST1; |
3993 | eaa728ee | bellard | fpsrcop1.d = fpsrcop; |
3994 | eaa728ee | bellard | fptemp1.d = fptemp; |
3995 | eaa728ee | bellard | expdif = EXPD(fpsrcop1) - EXPD(fptemp1); |
3996 | eaa728ee | bellard | |
3997 | eaa728ee | bellard | if (expdif < 0) { |
3998 | eaa728ee | bellard | /* optimisation? taken from the AMD docs */
|
3999 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4000 | eaa728ee | bellard | /* ST0 is unchanged */
|
4001 | eaa728ee | bellard | return;
|
4002 | eaa728ee | bellard | } |
4003 | eaa728ee | bellard | |
4004 | eaa728ee | bellard | if (expdif < 53) { |
4005 | eaa728ee | bellard | dblq = fpsrcop / fptemp; |
4006 | eaa728ee | bellard | /* round dblq towards nearest integer */
|
4007 | eaa728ee | bellard | dblq = rint(dblq); |
4008 | eaa728ee | bellard | ST0 = fpsrcop - fptemp * dblq; |
4009 | eaa728ee | bellard | |
4010 | eaa728ee | bellard | /* convert dblq to q by truncating towards zero */
|
4011 | eaa728ee | bellard | if (dblq < 0.0) |
4012 | eaa728ee | bellard | q = (signed long long int)(-dblq); |
4013 | eaa728ee | bellard | else
|
4014 | eaa728ee | bellard | q = (signed long long int)dblq; |
4015 | eaa728ee | bellard | |
4016 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4017 | eaa728ee | bellard | /* (C0,C3,C1) <-- (q2,q1,q0) */
|
4018 | eaa728ee | bellard | env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */ |
4019 | eaa728ee | bellard | env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */ |
4020 | eaa728ee | bellard | env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */ |
4021 | eaa728ee | bellard | } else {
|
4022 | eaa728ee | bellard | env->fpus |= 0x400; /* C2 <-- 1 */ |
4023 | eaa728ee | bellard | fptemp = pow(2.0, expdif - 50); |
4024 | eaa728ee | bellard | fpsrcop = (ST0 / ST1) / fptemp; |
4025 | eaa728ee | bellard | /* fpsrcop = integer obtained by chopping */
|
4026 | eaa728ee | bellard | fpsrcop = (fpsrcop < 0.0) ? |
4027 | eaa728ee | bellard | -(floor(fabs(fpsrcop))) : floor(fpsrcop); |
4028 | eaa728ee | bellard | ST0 -= (ST1 * fpsrcop * fptemp); |
4029 | eaa728ee | bellard | } |
4030 | eaa728ee | bellard | } |
4031 | eaa728ee | bellard | |
4032 | eaa728ee | bellard | void helper_fprem(void) |
4033 | eaa728ee | bellard | { |
4034 | eaa728ee | bellard | CPU86_LDouble dblq, fpsrcop, fptemp; |
4035 | eaa728ee | bellard | CPU86_LDoubleU fpsrcop1, fptemp1; |
4036 | eaa728ee | bellard | int expdif;
|
4037 | eaa728ee | bellard | signed long long int q; |
4038 | eaa728ee | bellard | |
4039 | eaa728ee | bellard | if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) { |
4040 | eaa728ee | bellard | ST0 = 0.0 / 0.0; /* NaN */ |
4041 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4042 | eaa728ee | bellard | return;
|
4043 | eaa728ee | bellard | } |
4044 | eaa728ee | bellard | |
4045 | eaa728ee | bellard | fpsrcop = (CPU86_LDouble)ST0; |
4046 | eaa728ee | bellard | fptemp = (CPU86_LDouble)ST1; |
4047 | eaa728ee | bellard | fpsrcop1.d = fpsrcop; |
4048 | eaa728ee | bellard | fptemp1.d = fptemp; |
4049 | eaa728ee | bellard | expdif = EXPD(fpsrcop1) - EXPD(fptemp1); |
4050 | eaa728ee | bellard | |
4051 | eaa728ee | bellard | if (expdif < 0) { |
4052 | eaa728ee | bellard | /* optimisation? taken from the AMD docs */
|
4053 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4054 | eaa728ee | bellard | /* ST0 is unchanged */
|
4055 | eaa728ee | bellard | return;
|
4056 | eaa728ee | bellard | } |
4057 | eaa728ee | bellard | |
4058 | eaa728ee | bellard | if ( expdif < 53 ) { |
4059 | eaa728ee | bellard | dblq = fpsrcop/*ST0*/ / fptemp/*ST1*/; |
4060 | eaa728ee | bellard | /* round dblq towards zero */
|
4061 | eaa728ee | bellard | dblq = (dblq < 0.0) ? ceil(dblq) : floor(dblq); |
4062 | eaa728ee | bellard | ST0 = fpsrcop/*ST0*/ - fptemp * dblq;
|
4063 | eaa728ee | bellard | |
4064 | eaa728ee | bellard | /* convert dblq to q by truncating towards zero */
|
4065 | eaa728ee | bellard | if (dblq < 0.0) |
4066 | eaa728ee | bellard | q = (signed long long int)(-dblq); |
4067 | eaa728ee | bellard | else
|
4068 | eaa728ee | bellard | q = (signed long long int)dblq; |
4069 | eaa728ee | bellard | |
4070 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4071 | eaa728ee | bellard | /* (C0,C3,C1) <-- (q2,q1,q0) */
|
4072 | eaa728ee | bellard | env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */ |
4073 | eaa728ee | bellard | env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */ |
4074 | eaa728ee | bellard | env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */ |
4075 | eaa728ee | bellard | } else {
|
4076 | eaa728ee | bellard | int N = 32 + (expdif % 32); /* as per AMD docs */ |
4077 | eaa728ee | bellard | env->fpus |= 0x400; /* C2 <-- 1 */ |
4078 | eaa728ee | bellard | fptemp = pow(2.0, (double)(expdif - N)); |
4079 | eaa728ee | bellard | fpsrcop = (ST0 / ST1) / fptemp; |
4080 | eaa728ee | bellard | /* fpsrcop = integer obtained by chopping */
|
4081 | eaa728ee | bellard | fpsrcop = (fpsrcop < 0.0) ? |
4082 | eaa728ee | bellard | -(floor(fabs(fpsrcop))) : floor(fpsrcop); |
4083 | eaa728ee | bellard | ST0 -= (ST1 * fpsrcop * fptemp); |
4084 | eaa728ee | bellard | } |
4085 | eaa728ee | bellard | } |
4086 | eaa728ee | bellard | |
4087 | eaa728ee | bellard | void helper_fyl2xp1(void) |
4088 | eaa728ee | bellard | { |
4089 | eaa728ee | bellard | CPU86_LDouble fptemp; |
4090 | eaa728ee | bellard | |
4091 | eaa728ee | bellard | fptemp = ST0; |
4092 | eaa728ee | bellard | if ((fptemp+1.0)>0.0) { |
4093 | eaa728ee | bellard | fptemp = log(fptemp+1.0) / log(2.0); /* log2(ST+1.0) */ |
4094 | eaa728ee | bellard | ST1 *= fptemp; |
4095 | eaa728ee | bellard | fpop(); |
4096 | eaa728ee | bellard | } else {
|
4097 | eaa728ee | bellard | env->fpus &= (~0x4700);
|
4098 | eaa728ee | bellard | env->fpus |= 0x400;
|
4099 | eaa728ee | bellard | } |
4100 | eaa728ee | bellard | } |
4101 | eaa728ee | bellard | |
4102 | eaa728ee | bellard | void helper_fsqrt(void) |
4103 | eaa728ee | bellard | { |
4104 | eaa728ee | bellard | CPU86_LDouble fptemp; |
4105 | eaa728ee | bellard | |
4106 | eaa728ee | bellard | fptemp = ST0; |
4107 | eaa728ee | bellard | if (fptemp<0.0) { |
4108 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4109 | eaa728ee | bellard | env->fpus |= 0x400;
|
4110 | eaa728ee | bellard | } |
4111 | eaa728ee | bellard | ST0 = sqrt(fptemp); |
4112 | eaa728ee | bellard | } |
4113 | eaa728ee | bellard | |
4114 | eaa728ee | bellard | void helper_fsincos(void) |
4115 | eaa728ee | bellard | { |
4116 | eaa728ee | bellard | CPU86_LDouble fptemp; |
4117 | eaa728ee | bellard | |
4118 | eaa728ee | bellard | fptemp = ST0; |
4119 | eaa728ee | bellard | if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
|
4120 | eaa728ee | bellard | env->fpus |= 0x400;
|
4121 | eaa728ee | bellard | } else {
|
4122 | eaa728ee | bellard | ST0 = sin(fptemp); |
4123 | eaa728ee | bellard | fpush(); |
4124 | eaa728ee | bellard | ST0 = cos(fptemp); |
4125 | eaa728ee | bellard | env->fpus &= (~0x400); /* C2 <-- 0 */ |
4126 | eaa728ee | bellard | /* the above code is for |arg| < 2**63 only */
|
4127 | eaa728ee | bellard | } |
4128 | eaa728ee | bellard | } |
4129 | eaa728ee | bellard | |
4130 | eaa728ee | bellard | void helper_frndint(void) |
4131 | eaa728ee | bellard | { |
4132 | eaa728ee | bellard | ST0 = floatx_round_to_int(ST0, &env->fp_status); |
4133 | eaa728ee | bellard | } |
4134 | eaa728ee | bellard | |
4135 | eaa728ee | bellard | void helper_fscale(void) |
4136 | eaa728ee | bellard | { |
4137 | eaa728ee | bellard | ST0 = ldexp (ST0, (int)(ST1));
|
4138 | eaa728ee | bellard | } |
4139 | eaa728ee | bellard | |
4140 | eaa728ee | bellard | void helper_fsin(void) |
4141 | eaa728ee | bellard | { |
4142 | eaa728ee | bellard | CPU86_LDouble fptemp; |
4143 | eaa728ee | bellard | |
4144 | eaa728ee | bellard | fptemp = ST0; |
4145 | eaa728ee | bellard | if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
|
4146 | eaa728ee | bellard | env->fpus |= 0x400;
|
4147 | eaa728ee | bellard | } else {
|
4148 | eaa728ee | bellard | ST0 = sin(fptemp); |
4149 | eaa728ee | bellard | env->fpus &= (~0x400); /* C2 <-- 0 */ |
4150 | eaa728ee | bellard | /* the above code is for |arg| < 2**53 only */
|
4151 | eaa728ee | bellard | } |
4152 | eaa728ee | bellard | } |
4153 | eaa728ee | bellard | |
4154 | eaa728ee | bellard | void helper_fcos(void) |
4155 | eaa728ee | bellard | { |
4156 | eaa728ee | bellard | CPU86_LDouble fptemp; |
4157 | eaa728ee | bellard | |
4158 | eaa728ee | bellard | fptemp = ST0; |
4159 | eaa728ee | bellard | if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) {
|
4160 | eaa728ee | bellard | env->fpus |= 0x400;
|
4161 | eaa728ee | bellard | } else {
|
4162 | eaa728ee | bellard | ST0 = cos(fptemp); |
4163 | eaa728ee | bellard | env->fpus &= (~0x400); /* C2 <-- 0 */ |
4164 | eaa728ee | bellard | /* the above code is for |arg5 < 2**63 only */
|
4165 | eaa728ee | bellard | } |
4166 | eaa728ee | bellard | } |
4167 | eaa728ee | bellard | |
4168 | eaa728ee | bellard | void helper_fxam_ST0(void) |
4169 | eaa728ee | bellard | { |
4170 | eaa728ee | bellard | CPU86_LDoubleU temp; |
4171 | eaa728ee | bellard | int expdif;
|
4172 | eaa728ee | bellard | |
4173 | eaa728ee | bellard | temp.d = ST0; |
4174 | eaa728ee | bellard | |
4175 | eaa728ee | bellard | env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */ |
4176 | eaa728ee | bellard | if (SIGND(temp))
|
4177 | eaa728ee | bellard | env->fpus |= 0x200; /* C1 <-- 1 */ |
4178 | eaa728ee | bellard | |
4179 | eaa728ee | bellard | /* XXX: test fptags too */
|
4180 | eaa728ee | bellard | expdif = EXPD(temp); |
4181 | eaa728ee | bellard | if (expdif == MAXEXPD) {
|
4182 | eaa728ee | bellard | #ifdef USE_X86LDOUBLE
|
4183 | eaa728ee | bellard | if (MANTD(temp) == 0x8000000000000000ULL) |
4184 | eaa728ee | bellard | #else
|
4185 | eaa728ee | bellard | if (MANTD(temp) == 0) |
4186 | eaa728ee | bellard | #endif
|
4187 | eaa728ee | bellard | env->fpus |= 0x500 /*Infinity*/; |
4188 | eaa728ee | bellard | else
|
4189 | eaa728ee | bellard | env->fpus |= 0x100 /*NaN*/; |
4190 | eaa728ee | bellard | } else if (expdif == 0) { |
4191 | eaa728ee | bellard | if (MANTD(temp) == 0) |
4192 | eaa728ee | bellard | env->fpus |= 0x4000 /*Zero*/; |
4193 | eaa728ee | bellard | else
|
4194 | eaa728ee | bellard | env->fpus |= 0x4400 /*Denormal*/; |
4195 | eaa728ee | bellard | } else {
|
4196 | eaa728ee | bellard | env->fpus |= 0x400;
|
4197 | eaa728ee | bellard | } |
4198 | eaa728ee | bellard | } |
4199 | eaa728ee | bellard | |
4200 | eaa728ee | bellard | void helper_fstenv(target_ulong ptr, int data32) |
4201 | eaa728ee | bellard | { |
4202 | eaa728ee | bellard | int fpus, fptag, exp, i;
|
4203 | eaa728ee | bellard | uint64_t mant; |
4204 | eaa728ee | bellard | CPU86_LDoubleU tmp; |
4205 | eaa728ee | bellard | |
4206 | eaa728ee | bellard | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
4207 | eaa728ee | bellard | fptag = 0;
|
4208 | eaa728ee | bellard | for (i=7; i>=0; i--) { |
4209 | eaa728ee | bellard | fptag <<= 2;
|
4210 | eaa728ee | bellard | if (env->fptags[i]) {
|
4211 | eaa728ee | bellard | fptag |= 3;
|
4212 | eaa728ee | bellard | } else {
|
4213 | eaa728ee | bellard | tmp.d = env->fpregs[i].d; |
4214 | eaa728ee | bellard | exp = EXPD(tmp); |
4215 | eaa728ee | bellard | mant = MANTD(tmp); |
4216 | eaa728ee | bellard | if (exp == 0 && mant == 0) { |
4217 | eaa728ee | bellard | /* zero */
|
4218 | eaa728ee | bellard | fptag |= 1;
|
4219 | eaa728ee | bellard | } else if (exp == 0 || exp == MAXEXPD |
4220 | eaa728ee | bellard | #ifdef USE_X86LDOUBLE
|
4221 | eaa728ee | bellard | || (mant & (1LL << 63)) == 0 |
4222 | eaa728ee | bellard | #endif
|
4223 | eaa728ee | bellard | ) { |
4224 | eaa728ee | bellard | /* NaNs, infinity, denormal */
|
4225 | eaa728ee | bellard | fptag |= 2;
|
4226 | eaa728ee | bellard | } |
4227 | eaa728ee | bellard | } |
4228 | eaa728ee | bellard | } |
4229 | eaa728ee | bellard | if (data32) {
|
4230 | eaa728ee | bellard | /* 32 bit */
|
4231 | eaa728ee | bellard | stl(ptr, env->fpuc); |
4232 | eaa728ee | bellard | stl(ptr + 4, fpus);
|
4233 | eaa728ee | bellard | stl(ptr + 8, fptag);
|
4234 | eaa728ee | bellard | stl(ptr + 12, 0); /* fpip */ |
4235 | eaa728ee | bellard | stl(ptr + 16, 0); /* fpcs */ |
4236 | eaa728ee | bellard | stl(ptr + 20, 0); /* fpoo */ |
4237 | eaa728ee | bellard | stl(ptr + 24, 0); /* fpos */ |
4238 | eaa728ee | bellard | } else {
|
4239 | eaa728ee | bellard | /* 16 bit */
|
4240 | eaa728ee | bellard | stw(ptr, env->fpuc); |
4241 | eaa728ee | bellard | stw(ptr + 2, fpus);
|
4242 | eaa728ee | bellard | stw(ptr + 4, fptag);
|
4243 | eaa728ee | bellard | stw(ptr + 6, 0); |
4244 | eaa728ee | bellard | stw(ptr + 8, 0); |
4245 | eaa728ee | bellard | stw(ptr + 10, 0); |
4246 | eaa728ee | bellard | stw(ptr + 12, 0); |
4247 | eaa728ee | bellard | } |
4248 | eaa728ee | bellard | } |
4249 | eaa728ee | bellard | |
4250 | eaa728ee | bellard | void helper_fldenv(target_ulong ptr, int data32) |
4251 | eaa728ee | bellard | { |
4252 | eaa728ee | bellard | int i, fpus, fptag;
|
4253 | eaa728ee | bellard | |
4254 | eaa728ee | bellard | if (data32) {
|
4255 | eaa728ee | bellard | env->fpuc = lduw(ptr); |
4256 | eaa728ee | bellard | fpus = lduw(ptr + 4);
|
4257 | eaa728ee | bellard | fptag = lduw(ptr + 8);
|
4258 | eaa728ee | bellard | } |
4259 | eaa728ee | bellard | else {
|
4260 | eaa728ee | bellard | env->fpuc = lduw(ptr); |
4261 | eaa728ee | bellard | fpus = lduw(ptr + 2);
|
4262 | eaa728ee | bellard | fptag = lduw(ptr + 4);
|
4263 | eaa728ee | bellard | } |
4264 | eaa728ee | bellard | env->fpstt = (fpus >> 11) & 7; |
4265 | eaa728ee | bellard | env->fpus = fpus & ~0x3800;
|
4266 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4267 | eaa728ee | bellard | env->fptags[i] = ((fptag & 3) == 3); |
4268 | eaa728ee | bellard | fptag >>= 2;
|
4269 | eaa728ee | bellard | } |
4270 | eaa728ee | bellard | } |
4271 | eaa728ee | bellard | |
4272 | eaa728ee | bellard | void helper_fsave(target_ulong ptr, int data32) |
4273 | eaa728ee | bellard | { |
4274 | eaa728ee | bellard | CPU86_LDouble tmp; |
4275 | eaa728ee | bellard | int i;
|
4276 | eaa728ee | bellard | |
4277 | eaa728ee | bellard | helper_fstenv(ptr, data32); |
4278 | eaa728ee | bellard | |
4279 | eaa728ee | bellard | ptr += (14 << data32);
|
4280 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4281 | eaa728ee | bellard | tmp = ST(i); |
4282 | eaa728ee | bellard | helper_fstt(tmp, ptr); |
4283 | eaa728ee | bellard | ptr += 10;
|
4284 | eaa728ee | bellard | } |
4285 | eaa728ee | bellard | |
4286 | eaa728ee | bellard | /* fninit */
|
4287 | eaa728ee | bellard | env->fpus = 0;
|
4288 | eaa728ee | bellard | env->fpstt = 0;
|
4289 | eaa728ee | bellard | env->fpuc = 0x37f;
|
4290 | eaa728ee | bellard | env->fptags[0] = 1; |
4291 | eaa728ee | bellard | env->fptags[1] = 1; |
4292 | eaa728ee | bellard | env->fptags[2] = 1; |
4293 | eaa728ee | bellard | env->fptags[3] = 1; |
4294 | eaa728ee | bellard | env->fptags[4] = 1; |
4295 | eaa728ee | bellard | env->fptags[5] = 1; |
4296 | eaa728ee | bellard | env->fptags[6] = 1; |
4297 | eaa728ee | bellard | env->fptags[7] = 1; |
4298 | eaa728ee | bellard | } |
4299 | eaa728ee | bellard | |
4300 | eaa728ee | bellard | void helper_frstor(target_ulong ptr, int data32) |
4301 | eaa728ee | bellard | { |
4302 | eaa728ee | bellard | CPU86_LDouble tmp; |
4303 | eaa728ee | bellard | int i;
|
4304 | eaa728ee | bellard | |
4305 | eaa728ee | bellard | helper_fldenv(ptr, data32); |
4306 | eaa728ee | bellard | ptr += (14 << data32);
|
4307 | eaa728ee | bellard | |
4308 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4309 | eaa728ee | bellard | tmp = helper_fldt(ptr); |
4310 | eaa728ee | bellard | ST(i) = tmp; |
4311 | eaa728ee | bellard | ptr += 10;
|
4312 | eaa728ee | bellard | } |
4313 | eaa728ee | bellard | } |
4314 | eaa728ee | bellard | |
4315 | eaa728ee | bellard | void helper_fxsave(target_ulong ptr, int data64) |
4316 | eaa728ee | bellard | { |
4317 | eaa728ee | bellard | int fpus, fptag, i, nb_xmm_regs;
|
4318 | eaa728ee | bellard | CPU86_LDouble tmp; |
4319 | eaa728ee | bellard | target_ulong addr; |
4320 | eaa728ee | bellard | |
4321 | eaa728ee | bellard | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
4322 | eaa728ee | bellard | fptag = 0;
|
4323 | eaa728ee | bellard | for(i = 0; i < 8; i++) { |
4324 | eaa728ee | bellard | fptag |= (env->fptags[i] << i); |
4325 | eaa728ee | bellard | } |
4326 | eaa728ee | bellard | stw(ptr, env->fpuc); |
4327 | eaa728ee | bellard | stw(ptr + 2, fpus);
|
4328 | eaa728ee | bellard | stw(ptr + 4, fptag ^ 0xff); |
4329 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
4330 | eaa728ee | bellard | if (data64) {
|
4331 | eaa728ee | bellard | stq(ptr + 0x08, 0); /* rip */ |
4332 | eaa728ee | bellard | stq(ptr + 0x10, 0); /* rdp */ |
4333 | eaa728ee | bellard | } else
|
4334 | eaa728ee | bellard | #endif
|
4335 | eaa728ee | bellard | { |
4336 | eaa728ee | bellard | stl(ptr + 0x08, 0); /* eip */ |
4337 | eaa728ee | bellard | stl(ptr + 0x0c, 0); /* sel */ |
4338 | eaa728ee | bellard | stl(ptr + 0x10, 0); /* dp */ |
4339 | eaa728ee | bellard | stl(ptr + 0x14, 0); /* sel */ |
4340 | eaa728ee | bellard | } |
4341 | eaa728ee | bellard | |
4342 | eaa728ee | bellard | addr = ptr + 0x20;
|
4343 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4344 | eaa728ee | bellard | tmp = ST(i); |
4345 | eaa728ee | bellard | helper_fstt(tmp, addr); |
4346 | eaa728ee | bellard | addr += 16;
|
4347 | eaa728ee | bellard | } |
4348 | eaa728ee | bellard | |
4349 | eaa728ee | bellard | if (env->cr[4] & CR4_OSFXSR_MASK) { |
4350 | eaa728ee | bellard | /* XXX: finish it */
|
4351 | eaa728ee | bellard | stl(ptr + 0x18, env->mxcsr); /* mxcsr */ |
4352 | eaa728ee | bellard | stl(ptr + 0x1c, 0x0000ffff); /* mxcsr_mask */ |
4353 | eaa728ee | bellard | if (env->hflags & HF_CS64_MASK)
|
4354 | eaa728ee | bellard | nb_xmm_regs = 16;
|
4355 | eaa728ee | bellard | else
|
4356 | eaa728ee | bellard | nb_xmm_regs = 8;
|
4357 | eaa728ee | bellard | addr = ptr + 0xa0;
|
4358 | eef26553 | aliguori | /* Fast FXSAVE leaves out the XMM registers */
|
4359 | eef26553 | aliguori | if (!(env->efer & MSR_EFER_FFXSR)
|
4360 | eef26553 | aliguori | || (env->hflags & HF_CPL_MASK) |
4361 | eef26553 | aliguori | || !(env->hflags & HF_LMA_MASK)) { |
4362 | eef26553 | aliguori | for(i = 0; i < nb_xmm_regs; i++) { |
4363 | eef26553 | aliguori | stq(addr, env->xmm_regs[i].XMM_Q(0));
|
4364 | eef26553 | aliguori | stq(addr + 8, env->xmm_regs[i].XMM_Q(1)); |
4365 | eef26553 | aliguori | addr += 16;
|
4366 | eef26553 | aliguori | } |
4367 | eaa728ee | bellard | } |
4368 | eaa728ee | bellard | } |
4369 | eaa728ee | bellard | } |
4370 | eaa728ee | bellard | |
4371 | eaa728ee | bellard | void helper_fxrstor(target_ulong ptr, int data64) |
4372 | eaa728ee | bellard | { |
4373 | eaa728ee | bellard | int i, fpus, fptag, nb_xmm_regs;
|
4374 | eaa728ee | bellard | CPU86_LDouble tmp; |
4375 | eaa728ee | bellard | target_ulong addr; |
4376 | eaa728ee | bellard | |
4377 | eaa728ee | bellard | env->fpuc = lduw(ptr); |
4378 | eaa728ee | bellard | fpus = lduw(ptr + 2);
|
4379 | eaa728ee | bellard | fptag = lduw(ptr + 4);
|
4380 | eaa728ee | bellard | env->fpstt = (fpus >> 11) & 7; |
4381 | eaa728ee | bellard | env->fpus = fpus & ~0x3800;
|
4382 | eaa728ee | bellard | fptag ^= 0xff;
|
4383 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4384 | eaa728ee | bellard | env->fptags[i] = ((fptag >> i) & 1);
|
4385 | eaa728ee | bellard | } |
4386 | eaa728ee | bellard | |
4387 | eaa728ee | bellard | addr = ptr + 0x20;
|
4388 | eaa728ee | bellard | for(i = 0;i < 8; i++) { |
4389 | eaa728ee | bellard | tmp = helper_fldt(addr); |
4390 | eaa728ee | bellard | ST(i) = tmp; |
4391 | eaa728ee | bellard | addr += 16;
|
4392 | eaa728ee | bellard | } |
4393 | eaa728ee | bellard | |
4394 | eaa728ee | bellard | if (env->cr[4] & CR4_OSFXSR_MASK) { |
4395 | eaa728ee | bellard | /* XXX: finish it */
|
4396 | eaa728ee | bellard | env->mxcsr = ldl(ptr + 0x18);
|
4397 | eaa728ee | bellard | //ldl(ptr + 0x1c);
|
4398 | eaa728ee | bellard | if (env->hflags & HF_CS64_MASK)
|
4399 | eaa728ee | bellard | nb_xmm_regs = 16;
|
4400 | eaa728ee | bellard | else
|
4401 | eaa728ee | bellard | nb_xmm_regs = 8;
|
4402 | eaa728ee | bellard | addr = ptr + 0xa0;
|
4403 | eef26553 | aliguori | /* Fast FXRESTORE leaves out the XMM registers */
|
4404 | eef26553 | aliguori | if (!(env->efer & MSR_EFER_FFXSR)
|
4405 | eef26553 | aliguori | || (env->hflags & HF_CPL_MASK) |
4406 | eef26553 | aliguori | || !(env->hflags & HF_LMA_MASK)) { |
4407 | eef26553 | aliguori | for(i = 0; i < nb_xmm_regs; i++) { |
4408 | eef26553 | aliguori | env->xmm_regs[i].XMM_Q(0) = ldq(addr);
|
4409 | eef26553 | aliguori | env->xmm_regs[i].XMM_Q(1) = ldq(addr + 8); |
4410 | eef26553 | aliguori | addr += 16;
|
4411 | eef26553 | aliguori | } |
4412 | eaa728ee | bellard | } |
4413 | eaa728ee | bellard | } |
4414 | eaa728ee | bellard | } |
4415 | eaa728ee | bellard | |
4416 | eaa728ee | bellard | #ifndef USE_X86LDOUBLE
|
4417 | eaa728ee | bellard | |
4418 | eaa728ee | bellard | void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
|
4419 | eaa728ee | bellard | { |
4420 | eaa728ee | bellard | CPU86_LDoubleU temp; |
4421 | eaa728ee | bellard | int e;
|
4422 | eaa728ee | bellard | |
4423 | eaa728ee | bellard | temp.d = f; |
4424 | eaa728ee | bellard | /* mantissa */
|
4425 | eaa728ee | bellard | *pmant = (MANTD(temp) << 11) | (1LL << 63); |
4426 | eaa728ee | bellard | /* exponent + sign */
|
4427 | eaa728ee | bellard | e = EXPD(temp) - EXPBIAS + 16383;
|
4428 | eaa728ee | bellard | e |= SIGND(temp) >> 16;
|
4429 | eaa728ee | bellard | *pexp = e; |
4430 | eaa728ee | bellard | } |
4431 | eaa728ee | bellard | |
4432 | eaa728ee | bellard | CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper) |
4433 | eaa728ee | bellard | { |
4434 | eaa728ee | bellard | CPU86_LDoubleU temp; |
4435 | eaa728ee | bellard | int e;
|
4436 | eaa728ee | bellard | uint64_t ll; |
4437 | eaa728ee | bellard | |
4438 | eaa728ee | bellard | /* XXX: handle overflow ? */
|
4439 | eaa728ee | bellard | e = (upper & 0x7fff) - 16383 + EXPBIAS; /* exponent */ |
4440 | eaa728ee | bellard | e |= (upper >> 4) & 0x800; /* sign */ |
4441 | eaa728ee | bellard | ll = (mant >> 11) & ((1LL << 52) - 1); |
4442 | eaa728ee | bellard | #ifdef __arm__
|
4443 | eaa728ee | bellard | temp.l.upper = (e << 20) | (ll >> 32); |
4444 | eaa728ee | bellard | temp.l.lower = ll; |
4445 | eaa728ee | bellard | #else
|
4446 | eaa728ee | bellard | temp.ll = ll | ((uint64_t)e << 52);
|
4447 | eaa728ee | bellard | #endif
|
4448 | eaa728ee | bellard | return temp.d;
|
4449 | eaa728ee | bellard | } |
4450 | eaa728ee | bellard | |
4451 | eaa728ee | bellard | #else
|
4452 | eaa728ee | bellard | |
4453 | eaa728ee | bellard | void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, CPU86_LDouble f)
|
4454 | eaa728ee | bellard | { |
4455 | eaa728ee | bellard | CPU86_LDoubleU temp; |
4456 | eaa728ee | bellard | |
4457 | eaa728ee | bellard | temp.d = f; |
4458 | eaa728ee | bellard | *pmant = temp.l.lower; |
4459 | eaa728ee | bellard | *pexp = temp.l.upper; |
4460 | eaa728ee | bellard | } |
4461 | eaa728ee | bellard | |
4462 | eaa728ee | bellard | CPU86_LDouble cpu_set_fp80(uint64_t mant, uint16_t upper) |
4463 | eaa728ee | bellard | { |
4464 | eaa728ee | bellard | CPU86_LDoubleU temp; |
4465 | eaa728ee | bellard | |
4466 | eaa728ee | bellard | temp.l.upper = upper; |
4467 | eaa728ee | bellard | temp.l.lower = mant; |
4468 | eaa728ee | bellard | return temp.d;
|
4469 | eaa728ee | bellard | } |
4470 | eaa728ee | bellard | #endif
|
4471 | eaa728ee | bellard | |
4472 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
4473 | eaa728ee | bellard | |
4474 | eaa728ee | bellard | //#define DEBUG_MULDIV
|
4475 | eaa728ee | bellard | |
4476 | eaa728ee | bellard | static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b) |
4477 | eaa728ee | bellard | { |
4478 | eaa728ee | bellard | *plow += a; |
4479 | eaa728ee | bellard | /* carry test */
|
4480 | eaa728ee | bellard | if (*plow < a)
|
4481 | eaa728ee | bellard | (*phigh)++; |
4482 | eaa728ee | bellard | *phigh += b; |
4483 | eaa728ee | bellard | } |
4484 | eaa728ee | bellard | |
4485 | eaa728ee | bellard | static void neg128(uint64_t *plow, uint64_t *phigh) |
4486 | eaa728ee | bellard | { |
4487 | eaa728ee | bellard | *plow = ~ *plow; |
4488 | eaa728ee | bellard | *phigh = ~ *phigh; |
4489 | eaa728ee | bellard | add128(plow, phigh, 1, 0); |
4490 | eaa728ee | bellard | } |
4491 | eaa728ee | bellard | |
4492 | eaa728ee | bellard | /* return TRUE if overflow */
|
4493 | eaa728ee | bellard | static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b) |
4494 | eaa728ee | bellard | { |
4495 | eaa728ee | bellard | uint64_t q, r, a1, a0; |
4496 | eaa728ee | bellard | int i, qb, ab;
|
4497 | eaa728ee | bellard | |
4498 | eaa728ee | bellard | a0 = *plow; |
4499 | eaa728ee | bellard | a1 = *phigh; |
4500 | eaa728ee | bellard | if (a1 == 0) { |
4501 | eaa728ee | bellard | q = a0 / b; |
4502 | eaa728ee | bellard | r = a0 % b; |
4503 | eaa728ee | bellard | *plow = q; |
4504 | eaa728ee | bellard | *phigh = r; |
4505 | eaa728ee | bellard | } else {
|
4506 | eaa728ee | bellard | if (a1 >= b)
|
4507 | eaa728ee | bellard | return 1; |
4508 | eaa728ee | bellard | /* XXX: use a better algorithm */
|
4509 | eaa728ee | bellard | for(i = 0; i < 64; i++) { |
4510 | eaa728ee | bellard | ab = a1 >> 63;
|
4511 | eaa728ee | bellard | a1 = (a1 << 1) | (a0 >> 63); |
4512 | eaa728ee | bellard | if (ab || a1 >= b) {
|
4513 | eaa728ee | bellard | a1 -= b; |
4514 | eaa728ee | bellard | qb = 1;
|
4515 | eaa728ee | bellard | } else {
|
4516 | eaa728ee | bellard | qb = 0;
|
4517 | eaa728ee | bellard | } |
4518 | eaa728ee | bellard | a0 = (a0 << 1) | qb;
|
4519 | eaa728ee | bellard | } |
4520 | eaa728ee | bellard | #if defined(DEBUG_MULDIV)
|
4521 | eaa728ee | bellard | printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64 ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n", |
4522 | eaa728ee | bellard | *phigh, *plow, b, a0, a1); |
4523 | eaa728ee | bellard | #endif
|
4524 | eaa728ee | bellard | *plow = a0; |
4525 | eaa728ee | bellard | *phigh = a1; |
4526 | eaa728ee | bellard | } |
4527 | eaa728ee | bellard | return 0; |
4528 | eaa728ee | bellard | } |
4529 | eaa728ee | bellard | |
4530 | eaa728ee | bellard | /* return TRUE if overflow */
|
4531 | eaa728ee | bellard | static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b) |
4532 | eaa728ee | bellard | { |
4533 | eaa728ee | bellard | int sa, sb;
|
4534 | eaa728ee | bellard | sa = ((int64_t)*phigh < 0);
|
4535 | eaa728ee | bellard | if (sa)
|
4536 | eaa728ee | bellard | neg128(plow, phigh); |
4537 | eaa728ee | bellard | sb = (b < 0);
|
4538 | eaa728ee | bellard | if (sb)
|
4539 | eaa728ee | bellard | b = -b; |
4540 | eaa728ee | bellard | if (div64(plow, phigh, b) != 0) |
4541 | eaa728ee | bellard | return 1; |
4542 | eaa728ee | bellard | if (sa ^ sb) {
|
4543 | eaa728ee | bellard | if (*plow > (1ULL << 63)) |
4544 | eaa728ee | bellard | return 1; |
4545 | eaa728ee | bellard | *plow = - *plow; |
4546 | eaa728ee | bellard | } else {
|
4547 | eaa728ee | bellard | if (*plow >= (1ULL << 63)) |
4548 | eaa728ee | bellard | return 1; |
4549 | eaa728ee | bellard | } |
4550 | eaa728ee | bellard | if (sa)
|
4551 | eaa728ee | bellard | *phigh = - *phigh; |
4552 | eaa728ee | bellard | return 0; |
4553 | eaa728ee | bellard | } |
4554 | eaa728ee | bellard | |
4555 | eaa728ee | bellard | void helper_mulq_EAX_T0(target_ulong t0)
|
4556 | eaa728ee | bellard | { |
4557 | eaa728ee | bellard | uint64_t r0, r1; |
4558 | eaa728ee | bellard | |
4559 | eaa728ee | bellard | mulu64(&r0, &r1, EAX, t0); |
4560 | eaa728ee | bellard | EAX = r0; |
4561 | eaa728ee | bellard | EDX = r1; |
4562 | eaa728ee | bellard | CC_DST = r0; |
4563 | eaa728ee | bellard | CC_SRC = r1; |
4564 | eaa728ee | bellard | } |
4565 | eaa728ee | bellard | |
4566 | eaa728ee | bellard | void helper_imulq_EAX_T0(target_ulong t0)
|
4567 | eaa728ee | bellard | { |
4568 | eaa728ee | bellard | uint64_t r0, r1; |
4569 | eaa728ee | bellard | |
4570 | eaa728ee | bellard | muls64(&r0, &r1, EAX, t0); |
4571 | eaa728ee | bellard | EAX = r0; |
4572 | eaa728ee | bellard | EDX = r1; |
4573 | eaa728ee | bellard | CC_DST = r0; |
4574 | eaa728ee | bellard | CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
|
4575 | eaa728ee | bellard | } |
4576 | eaa728ee | bellard | |
4577 | eaa728ee | bellard | target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1) |
4578 | eaa728ee | bellard | { |
4579 | eaa728ee | bellard | uint64_t r0, r1; |
4580 | eaa728ee | bellard | |
4581 | eaa728ee | bellard | muls64(&r0, &r1, t0, t1); |
4582 | eaa728ee | bellard | CC_DST = r0; |
4583 | eaa728ee | bellard | CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
|
4584 | eaa728ee | bellard | return r0;
|
4585 | eaa728ee | bellard | } |
4586 | eaa728ee | bellard | |
4587 | eaa728ee | bellard | void helper_divq_EAX(target_ulong t0)
|
4588 | eaa728ee | bellard | { |
4589 | eaa728ee | bellard | uint64_t r0, r1; |
4590 | eaa728ee | bellard | if (t0 == 0) { |
4591 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
4592 | eaa728ee | bellard | } |
4593 | eaa728ee | bellard | r0 = EAX; |
4594 | eaa728ee | bellard | r1 = EDX; |
4595 | eaa728ee | bellard | if (div64(&r0, &r1, t0))
|
4596 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
4597 | eaa728ee | bellard | EAX = r0; |
4598 | eaa728ee | bellard | EDX = r1; |
4599 | eaa728ee | bellard | } |
4600 | eaa728ee | bellard | |
4601 | eaa728ee | bellard | void helper_idivq_EAX(target_ulong t0)
|
4602 | eaa728ee | bellard | { |
4603 | eaa728ee | bellard | uint64_t r0, r1; |
4604 | eaa728ee | bellard | if (t0 == 0) { |
4605 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
4606 | eaa728ee | bellard | } |
4607 | eaa728ee | bellard | r0 = EAX; |
4608 | eaa728ee | bellard | r1 = EDX; |
4609 | eaa728ee | bellard | if (idiv64(&r0, &r1, t0))
|
4610 | eaa728ee | bellard | raise_exception(EXCP00_DIVZ); |
4611 | eaa728ee | bellard | EAX = r0; |
4612 | eaa728ee | bellard | EDX = r1; |
4613 | eaa728ee | bellard | } |
4614 | eaa728ee | bellard | #endif
|
4615 | eaa728ee | bellard | |
4616 | 94451178 | bellard | static void do_hlt(void) |
4617 | eaa728ee | bellard | { |
4618 | eaa728ee | bellard | env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
|
4619 | ce5232c5 | bellard | env->halted = 1;
|
4620 | eaa728ee | bellard | env->exception_index = EXCP_HLT; |
4621 | eaa728ee | bellard | cpu_loop_exit(); |
4622 | eaa728ee | bellard | } |
4623 | eaa728ee | bellard | |
4624 | 94451178 | bellard | void helper_hlt(int next_eip_addend) |
4625 | 94451178 | bellard | { |
4626 | 94451178 | bellard | helper_svm_check_intercept_param(SVM_EXIT_HLT, 0);
|
4627 | 94451178 | bellard | EIP += next_eip_addend; |
4628 | 94451178 | bellard | |
4629 | 94451178 | bellard | do_hlt(); |
4630 | 94451178 | bellard | } |
4631 | 94451178 | bellard | |
4632 | eaa728ee | bellard | void helper_monitor(target_ulong ptr)
|
4633 | eaa728ee | bellard | { |
4634 | eaa728ee | bellard | if ((uint32_t)ECX != 0) |
4635 | eaa728ee | bellard | raise_exception(EXCP0D_GPF); |
4636 | eaa728ee | bellard | /* XXX: store address ? */
|
4637 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_MONITOR, 0);
|
4638 | eaa728ee | bellard | } |
4639 | eaa728ee | bellard | |
4640 | 94451178 | bellard | void helper_mwait(int next_eip_addend) |
4641 | eaa728ee | bellard | { |
4642 | eaa728ee | bellard | if ((uint32_t)ECX != 0) |
4643 | eaa728ee | bellard | raise_exception(EXCP0D_GPF); |
4644 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_MWAIT, 0);
|
4645 | 94451178 | bellard | EIP += next_eip_addend; |
4646 | 94451178 | bellard | |
4647 | eaa728ee | bellard | /* XXX: not complete but not completely erroneous */
|
4648 | eaa728ee | bellard | if (env->cpu_index != 0 || env->next_cpu != NULL) { |
4649 | eaa728ee | bellard | /* more than one CPU: do not sleep because another CPU may
|
4650 | eaa728ee | bellard | wake this one */
|
4651 | eaa728ee | bellard | } else {
|
4652 | 94451178 | bellard | do_hlt(); |
4653 | eaa728ee | bellard | } |
4654 | eaa728ee | bellard | } |
4655 | eaa728ee | bellard | |
4656 | eaa728ee | bellard | void helper_debug(void) |
4657 | eaa728ee | bellard | { |
4658 | eaa728ee | bellard | env->exception_index = EXCP_DEBUG; |
4659 | eaa728ee | bellard | cpu_loop_exit(); |
4660 | eaa728ee | bellard | } |
4661 | eaa728ee | bellard | |
4662 | eaa728ee | bellard | void helper_raise_interrupt(int intno, int next_eip_addend) |
4663 | eaa728ee | bellard | { |
4664 | eaa728ee | bellard | raise_interrupt(intno, 1, 0, next_eip_addend); |
4665 | eaa728ee | bellard | } |
4666 | eaa728ee | bellard | |
4667 | eaa728ee | bellard | void helper_raise_exception(int exception_index) |
4668 | eaa728ee | bellard | { |
4669 | eaa728ee | bellard | raise_exception(exception_index); |
4670 | eaa728ee | bellard | } |
4671 | eaa728ee | bellard | |
4672 | eaa728ee | bellard | void helper_cli(void) |
4673 | eaa728ee | bellard | { |
4674 | eaa728ee | bellard | env->eflags &= ~IF_MASK; |
4675 | eaa728ee | bellard | } |
4676 | eaa728ee | bellard | |
4677 | eaa728ee | bellard | void helper_sti(void) |
4678 | eaa728ee | bellard | { |
4679 | eaa728ee | bellard | env->eflags |= IF_MASK; |
4680 | eaa728ee | bellard | } |
4681 | eaa728ee | bellard | |
4682 | eaa728ee | bellard | #if 0
|
4683 | eaa728ee | bellard | /* vm86plus instructions */
|
4684 | eaa728ee | bellard | void helper_cli_vm(void)
|
4685 | eaa728ee | bellard | {
|
4686 | eaa728ee | bellard | env->eflags &= ~VIF_MASK;
|
4687 | eaa728ee | bellard | }
|
4688 | eaa728ee | bellard | |
4689 | eaa728ee | bellard | void helper_sti_vm(void)
|
4690 | eaa728ee | bellard | {
|
4691 | eaa728ee | bellard | env->eflags |= VIF_MASK;
|
4692 | eaa728ee | bellard | if (env->eflags & VIP_MASK) {
|
4693 | eaa728ee | bellard | raise_exception(EXCP0D_GPF);
|
4694 | eaa728ee | bellard | }
|
4695 | eaa728ee | bellard | }
|
4696 | eaa728ee | bellard | #endif
|
4697 | eaa728ee | bellard | |
4698 | eaa728ee | bellard | void helper_set_inhibit_irq(void) |
4699 | eaa728ee | bellard | { |
4700 | eaa728ee | bellard | env->hflags |= HF_INHIBIT_IRQ_MASK; |
4701 | eaa728ee | bellard | } |
4702 | eaa728ee | bellard | |
4703 | eaa728ee | bellard | void helper_reset_inhibit_irq(void) |
4704 | eaa728ee | bellard | { |
4705 | eaa728ee | bellard | env->hflags &= ~HF_INHIBIT_IRQ_MASK; |
4706 | eaa728ee | bellard | } |
4707 | eaa728ee | bellard | |
4708 | eaa728ee | bellard | void helper_boundw(target_ulong a0, int v) |
4709 | eaa728ee | bellard | { |
4710 | eaa728ee | bellard | int low, high;
|
4711 | eaa728ee | bellard | low = ldsw(a0); |
4712 | eaa728ee | bellard | high = ldsw(a0 + 2);
|
4713 | eaa728ee | bellard | v = (int16_t)v; |
4714 | eaa728ee | bellard | if (v < low || v > high) {
|
4715 | eaa728ee | bellard | raise_exception(EXCP05_BOUND); |
4716 | eaa728ee | bellard | } |
4717 | eaa728ee | bellard | } |
4718 | eaa728ee | bellard | |
4719 | eaa728ee | bellard | void helper_boundl(target_ulong a0, int v) |
4720 | eaa728ee | bellard | { |
4721 | eaa728ee | bellard | int low, high;
|
4722 | eaa728ee | bellard | low = ldl(a0); |
4723 | eaa728ee | bellard | high = ldl(a0 + 4);
|
4724 | eaa728ee | bellard | if (v < low || v > high) {
|
4725 | eaa728ee | bellard | raise_exception(EXCP05_BOUND); |
4726 | eaa728ee | bellard | } |
4727 | eaa728ee | bellard | } |
4728 | eaa728ee | bellard | |
4729 | eaa728ee | bellard | static float approx_rsqrt(float a) |
4730 | eaa728ee | bellard | { |
4731 | eaa728ee | bellard | return 1.0 / sqrt(a); |
4732 | eaa728ee | bellard | } |
4733 | eaa728ee | bellard | |
4734 | eaa728ee | bellard | static float approx_rcp(float a) |
4735 | eaa728ee | bellard | { |
4736 | eaa728ee | bellard | return 1.0 / a; |
4737 | eaa728ee | bellard | } |
4738 | eaa728ee | bellard | |
4739 | eaa728ee | bellard | #if !defined(CONFIG_USER_ONLY)
|
4740 | eaa728ee | bellard | |
4741 | eaa728ee | bellard | #define MMUSUFFIX _mmu
|
4742 | eaa728ee | bellard | |
4743 | eaa728ee | bellard | #define SHIFT 0 |
4744 | eaa728ee | bellard | #include "softmmu_template.h" |
4745 | eaa728ee | bellard | |
4746 | eaa728ee | bellard | #define SHIFT 1 |
4747 | eaa728ee | bellard | #include "softmmu_template.h" |
4748 | eaa728ee | bellard | |
4749 | eaa728ee | bellard | #define SHIFT 2 |
4750 | eaa728ee | bellard | #include "softmmu_template.h" |
4751 | eaa728ee | bellard | |
4752 | eaa728ee | bellard | #define SHIFT 3 |
4753 | eaa728ee | bellard | #include "softmmu_template.h" |
4754 | eaa728ee | bellard | |
4755 | eaa728ee | bellard | #endif
|
4756 | eaa728ee | bellard | |
4757 | d9957a8b | blueswir1 | #if !defined(CONFIG_USER_ONLY)
|
4758 | eaa728ee | bellard | /* try to fill the TLB and return an exception if error. If retaddr is
|
4759 | eaa728ee | bellard | NULL, it means that the function was called in C code (i.e. not
|
4760 | eaa728ee | bellard | from generated code or from helper.c) */
|
4761 | eaa728ee | bellard | /* XXX: fix it to restore all registers */
|
4762 | eaa728ee | bellard | void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
4763 | eaa728ee | bellard | { |
4764 | eaa728ee | bellard | TranslationBlock *tb; |
4765 | eaa728ee | bellard | int ret;
|
4766 | eaa728ee | bellard | unsigned long pc; |
4767 | eaa728ee | bellard | CPUX86State *saved_env; |
4768 | eaa728ee | bellard | |
4769 | eaa728ee | bellard | /* XXX: hack to restore env in all cases, even if not called from
|
4770 | eaa728ee | bellard | generated code */
|
4771 | eaa728ee | bellard | saved_env = env; |
4772 | eaa728ee | bellard | env = cpu_single_env; |
4773 | eaa728ee | bellard | |
4774 | eaa728ee | bellard | ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
4775 | eaa728ee | bellard | if (ret) {
|
4776 | eaa728ee | bellard | if (retaddr) {
|
4777 | eaa728ee | bellard | /* now we have a real cpu fault */
|
4778 | eaa728ee | bellard | pc = (unsigned long)retaddr; |
4779 | eaa728ee | bellard | tb = tb_find_pc(pc); |
4780 | eaa728ee | bellard | if (tb) {
|
4781 | eaa728ee | bellard | /* the PC is inside the translated code. It means that we have
|
4782 | eaa728ee | bellard | a virtual CPU fault */
|
4783 | eaa728ee | bellard | cpu_restore_state(tb, env, pc, NULL);
|
4784 | eaa728ee | bellard | } |
4785 | eaa728ee | bellard | } |
4786 | 872929aa | bellard | raise_exception_err(env->exception_index, env->error_code); |
4787 | eaa728ee | bellard | } |
4788 | eaa728ee | bellard | env = saved_env; |
4789 | eaa728ee | bellard | } |
4790 | d9957a8b | blueswir1 | #endif
|
4791 | eaa728ee | bellard | |
4792 | eaa728ee | bellard | /* Secure Virtual Machine helpers */
|
4793 | eaa728ee | bellard | |
4794 | eaa728ee | bellard | #if defined(CONFIG_USER_ONLY)
|
4795 | eaa728ee | bellard | |
4796 | db620f46 | bellard | void helper_vmrun(int aflag, int next_eip_addend) |
4797 | eaa728ee | bellard | { |
4798 | eaa728ee | bellard | } |
4799 | eaa728ee | bellard | void helper_vmmcall(void) |
4800 | eaa728ee | bellard | { |
4801 | eaa728ee | bellard | } |
4802 | 914178d3 | bellard | void helper_vmload(int aflag) |
4803 | eaa728ee | bellard | { |
4804 | eaa728ee | bellard | } |
4805 | 914178d3 | bellard | void helper_vmsave(int aflag) |
4806 | eaa728ee | bellard | { |
4807 | eaa728ee | bellard | } |
4808 | 872929aa | bellard | void helper_stgi(void) |
4809 | 872929aa | bellard | { |
4810 | 872929aa | bellard | } |
4811 | 872929aa | bellard | void helper_clgi(void) |
4812 | 872929aa | bellard | { |
4813 | 872929aa | bellard | } |
4814 | eaa728ee | bellard | void helper_skinit(void) |
4815 | eaa728ee | bellard | { |
4816 | eaa728ee | bellard | } |
4817 | 914178d3 | bellard | void helper_invlpga(int aflag) |
4818 | eaa728ee | bellard | { |
4819 | eaa728ee | bellard | } |
4820 | eaa728ee | bellard | void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
|
4821 | eaa728ee | bellard | { |
4822 | eaa728ee | bellard | } |
4823 | eaa728ee | bellard | void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
|
4824 | eaa728ee | bellard | { |
4825 | eaa728ee | bellard | } |
4826 | eaa728ee | bellard | |
4827 | eaa728ee | bellard | void helper_svm_check_io(uint32_t port, uint32_t param,
|
4828 | eaa728ee | bellard | uint32_t next_eip_addend) |
4829 | eaa728ee | bellard | { |
4830 | eaa728ee | bellard | } |
4831 | eaa728ee | bellard | #else
|
4832 | eaa728ee | bellard | |
4833 | 872929aa | bellard | static inline void svm_save_seg(target_phys_addr_t addr, |
4834 | 872929aa | bellard | const SegmentCache *sc)
|
4835 | eaa728ee | bellard | { |
4836 | 872929aa | bellard | stw_phys(addr + offsetof(struct vmcb_seg, selector),
|
4837 | 872929aa | bellard | sc->selector); |
4838 | 872929aa | bellard | stq_phys(addr + offsetof(struct vmcb_seg, base),
|
4839 | 872929aa | bellard | sc->base); |
4840 | 872929aa | bellard | stl_phys(addr + offsetof(struct vmcb_seg, limit),
|
4841 | 872929aa | bellard | sc->limit); |
4842 | 872929aa | bellard | stw_phys(addr + offsetof(struct vmcb_seg, attrib),
|
4843 | e72210e1 | bellard | ((sc->flags >> 8) & 0xff) | ((sc->flags >> 12) & 0x0f00)); |
4844 | 872929aa | bellard | } |
4845 | 872929aa | bellard | |
4846 | 872929aa | bellard | static inline void svm_load_seg(target_phys_addr_t addr, SegmentCache *sc) |
4847 | 872929aa | bellard | { |
4848 | 872929aa | bellard | unsigned int flags; |
4849 | 872929aa | bellard | |
4850 | 872929aa | bellard | sc->selector = lduw_phys(addr + offsetof(struct vmcb_seg, selector));
|
4851 | 872929aa | bellard | sc->base = ldq_phys(addr + offsetof(struct vmcb_seg, base));
|
4852 | 872929aa | bellard | sc->limit = ldl_phys(addr + offsetof(struct vmcb_seg, limit));
|
4853 | 872929aa | bellard | flags = lduw_phys(addr + offsetof(struct vmcb_seg, attrib));
|
4854 | 872929aa | bellard | sc->flags = ((flags & 0xff) << 8) | ((flags & 0x0f00) << 12); |
4855 | eaa728ee | bellard | } |
4856 | eaa728ee | bellard | |
4857 | 872929aa | bellard | static inline void svm_load_seg_cache(target_phys_addr_t addr, |
4858 | 872929aa | bellard | CPUState *env, int seg_reg)
|
4859 | eaa728ee | bellard | { |
4860 | 872929aa | bellard | SegmentCache sc1, *sc = &sc1; |
4861 | 872929aa | bellard | svm_load_seg(addr, sc); |
4862 | 872929aa | bellard | cpu_x86_load_seg_cache(env, seg_reg, sc->selector, |
4863 | 872929aa | bellard | sc->base, sc->limit, sc->flags); |
4864 | eaa728ee | bellard | } |
4865 | eaa728ee | bellard | |
4866 | db620f46 | bellard | void helper_vmrun(int aflag, int next_eip_addend) |
4867 | eaa728ee | bellard | { |
4868 | eaa728ee | bellard | target_ulong addr; |
4869 | eaa728ee | bellard | uint32_t event_inj; |
4870 | eaa728ee | bellard | uint32_t int_ctl; |
4871 | eaa728ee | bellard | |
4872 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_VMRUN, 0);
|
4873 | 872929aa | bellard | |
4874 | 914178d3 | bellard | if (aflag == 2) |
4875 | 914178d3 | bellard | addr = EAX; |
4876 | 914178d3 | bellard | else
|
4877 | 914178d3 | bellard | addr = (uint32_t)EAX; |
4878 | 914178d3 | bellard | |
4879 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "vmrun! " TARGET_FMT_lx "\n", addr); |
4880 | eaa728ee | bellard | |
4881 | eaa728ee | bellard | env->vm_vmcb = addr; |
4882 | eaa728ee | bellard | |
4883 | eaa728ee | bellard | /* save the current CPU state in the hsave page */
|
4884 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
|
4885 | eaa728ee | bellard | stl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
|
4886 | eaa728ee | bellard | |
4887 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base), env->idt.base);
|
4888 | eaa728ee | bellard | stl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
|
4889 | eaa728ee | bellard | |
4890 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0), env->cr[0]); |
4891 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr2), env->cr[2]); |
4892 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3), env->cr[3]); |
4893 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4), env->cr[4]); |
4894 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6), env->dr[6]); |
4895 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7), env->dr[7]); |
4896 | eaa728ee | bellard | |
4897 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer), env->efer);
|
4898 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags), compute_eflags());
|
4899 | eaa728ee | bellard | |
4900 | 872929aa | bellard | svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.es),
|
4901 | 872929aa | bellard | &env->segs[R_ES]); |
4902 | 872929aa | bellard | svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.cs),
|
4903 | 872929aa | bellard | &env->segs[R_CS]); |
4904 | 872929aa | bellard | svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ss),
|
4905 | 872929aa | bellard | &env->segs[R_SS]); |
4906 | 872929aa | bellard | svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ds),
|
4907 | 872929aa | bellard | &env->segs[R_DS]); |
4908 | eaa728ee | bellard | |
4909 | db620f46 | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip),
|
4910 | db620f46 | bellard | EIP + next_eip_addend); |
4911 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
|
4912 | eaa728ee | bellard | stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
|
4913 | eaa728ee | bellard | |
4914 | eaa728ee | bellard | /* load the interception bitmaps so we do not need to access the
|
4915 | eaa728ee | bellard | vmcb in svm mode */
|
4916 | 872929aa | bellard | env->intercept = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept));
|
4917 | eaa728ee | bellard | env->intercept_cr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_read));
|
4918 | eaa728ee | bellard | env->intercept_cr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_write));
|
4919 | eaa728ee | bellard | env->intercept_dr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_read));
|
4920 | eaa728ee | bellard | env->intercept_dr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_write));
|
4921 | eaa728ee | bellard | env->intercept_exceptions = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_exceptions));
|
4922 | eaa728ee | bellard | |
4923 | 872929aa | bellard | /* enable intercepts */
|
4924 | 872929aa | bellard | env->hflags |= HF_SVMI_MASK; |
4925 | 872929aa | bellard | |
4926 | 33c263df | bellard | env->tsc_offset = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.tsc_offset));
|
4927 | 33c263df | bellard | |
4928 | eaa728ee | bellard | env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base));
|
4929 | eaa728ee | bellard | env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit));
|
4930 | eaa728ee | bellard | |
4931 | eaa728ee | bellard | env->idt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base));
|
4932 | eaa728ee | bellard | env->idt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit));
|
4933 | eaa728ee | bellard | |
4934 | eaa728ee | bellard | /* clear exit_info_2 so we behave like the real hardware */
|
4935 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), 0); |
4936 | eaa728ee | bellard | |
4937 | eaa728ee | bellard | cpu_x86_update_cr0(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0)));
|
4938 | eaa728ee | bellard | cpu_x86_update_cr4(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4)));
|
4939 | eaa728ee | bellard | cpu_x86_update_cr3(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3)));
|
4940 | eaa728ee | bellard | env->cr[2] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2)); |
4941 | eaa728ee | bellard | int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
|
4942 | db620f46 | bellard | env->hflags2 &= ~(HF2_HIF_MASK | HF2_VINTR_MASK); |
4943 | eaa728ee | bellard | if (int_ctl & V_INTR_MASKING_MASK) {
|
4944 | db620f46 | bellard | env->v_tpr = int_ctl & V_TPR_MASK; |
4945 | db620f46 | bellard | env->hflags2 |= HF2_VINTR_MASK; |
4946 | eaa728ee | bellard | if (env->eflags & IF_MASK)
|
4947 | db620f46 | bellard | env->hflags2 |= HF2_HIF_MASK; |
4948 | eaa728ee | bellard | } |
4949 | eaa728ee | bellard | |
4950 | 5efc27bb | bellard | cpu_load_efer(env, |
4951 | 5efc27bb | bellard | ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer)));
|
4952 | eaa728ee | bellard | env->eflags = 0;
|
4953 | eaa728ee | bellard | load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)),
|
4954 | eaa728ee | bellard | ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK)); |
4955 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
4956 | eaa728ee | bellard | |
4957 | 872929aa | bellard | svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.es),
|
4958 | 872929aa | bellard | env, R_ES); |
4959 | 872929aa | bellard | svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.cs),
|
4960 | 872929aa | bellard | env, R_CS); |
4961 | 872929aa | bellard | svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ss),
|
4962 | 872929aa | bellard | env, R_SS); |
4963 | 872929aa | bellard | svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ds),
|
4964 | 872929aa | bellard | env, R_DS); |
4965 | eaa728ee | bellard | |
4966 | eaa728ee | bellard | EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
|
4967 | eaa728ee | bellard | env->eip = EIP; |
4968 | eaa728ee | bellard | ESP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp));
|
4969 | eaa728ee | bellard | EAX = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax));
|
4970 | eaa728ee | bellard | env->dr[7] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7)); |
4971 | eaa728ee | bellard | env->dr[6] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6)); |
4972 | eaa728ee | bellard | cpu_x86_set_cpl(env, ldub_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl)));
|
4973 | eaa728ee | bellard | |
4974 | eaa728ee | bellard | /* FIXME: guest state consistency checks */
|
4975 | eaa728ee | bellard | |
4976 | eaa728ee | bellard | switch(ldub_phys(env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) { |
4977 | eaa728ee | bellard | case TLB_CONTROL_DO_NOTHING:
|
4978 | eaa728ee | bellard | break;
|
4979 | eaa728ee | bellard | case TLB_CONTROL_FLUSH_ALL_ASID:
|
4980 | eaa728ee | bellard | /* FIXME: this is not 100% correct but should work for now */
|
4981 | eaa728ee | bellard | tlb_flush(env, 1);
|
4982 | eaa728ee | bellard | break;
|
4983 | eaa728ee | bellard | } |
4984 | eaa728ee | bellard | |
4985 | 960540b4 | bellard | env->hflags2 |= HF2_GIF_MASK; |
4986 | eaa728ee | bellard | |
4987 | db620f46 | bellard | if (int_ctl & V_IRQ_MASK) {
|
4988 | db620f46 | bellard | env->interrupt_request |= CPU_INTERRUPT_VIRQ; |
4989 | db620f46 | bellard | } |
4990 | db620f46 | bellard | |
4991 | eaa728ee | bellard | /* maybe we need to inject an event */
|
4992 | eaa728ee | bellard | event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj));
|
4993 | eaa728ee | bellard | if (event_inj & SVM_EVTINJ_VALID) {
|
4994 | eaa728ee | bellard | uint8_t vector = event_inj & SVM_EVTINJ_VEC_MASK; |
4995 | eaa728ee | bellard | uint16_t valid_err = event_inj & SVM_EVTINJ_VALID_ERR; |
4996 | eaa728ee | bellard | uint32_t event_inj_err = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err));
|
4997 | eaa728ee | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID);
|
4998 | eaa728ee | bellard | |
4999 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "Injecting(%#hx): ", valid_err);
|
5000 | eaa728ee | bellard | /* FIXME: need to implement valid_err */
|
5001 | eaa728ee | bellard | switch (event_inj & SVM_EVTINJ_TYPE_MASK) {
|
5002 | eaa728ee | bellard | case SVM_EVTINJ_TYPE_INTR:
|
5003 | eaa728ee | bellard | env->exception_index = vector; |
5004 | eaa728ee | bellard | env->error_code = event_inj_err; |
5005 | eaa728ee | bellard | env->exception_is_int = 0;
|
5006 | eaa728ee | bellard | env->exception_next_eip = -1;
|
5007 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "INTR");
|
5008 | db620f46 | bellard | /* XXX: is it always correct ? */
|
5009 | db620f46 | bellard | do_interrupt(vector, 0, 0, 0, 1); |
5010 | eaa728ee | bellard | break;
|
5011 | eaa728ee | bellard | case SVM_EVTINJ_TYPE_NMI:
|
5012 | db620f46 | bellard | env->exception_index = EXCP02_NMI; |
5013 | eaa728ee | bellard | env->error_code = event_inj_err; |
5014 | eaa728ee | bellard | env->exception_is_int = 0;
|
5015 | eaa728ee | bellard | env->exception_next_eip = EIP; |
5016 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "NMI");
|
5017 | db620f46 | bellard | cpu_loop_exit(); |
5018 | eaa728ee | bellard | break;
|
5019 | eaa728ee | bellard | case SVM_EVTINJ_TYPE_EXEPT:
|
5020 | eaa728ee | bellard | env->exception_index = vector; |
5021 | eaa728ee | bellard | env->error_code = event_inj_err; |
5022 | eaa728ee | bellard | env->exception_is_int = 0;
|
5023 | eaa728ee | bellard | env->exception_next_eip = -1;
|
5024 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "EXEPT");
|
5025 | db620f46 | bellard | cpu_loop_exit(); |
5026 | eaa728ee | bellard | break;
|
5027 | eaa728ee | bellard | case SVM_EVTINJ_TYPE_SOFT:
|
5028 | eaa728ee | bellard | env->exception_index = vector; |
5029 | eaa728ee | bellard | env->error_code = event_inj_err; |
5030 | eaa728ee | bellard | env->exception_is_int = 1;
|
5031 | eaa728ee | bellard | env->exception_next_eip = EIP; |
5032 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "SOFT");
|
5033 | db620f46 | bellard | cpu_loop_exit(); |
5034 | eaa728ee | bellard | break;
|
5035 | eaa728ee | bellard | } |
5036 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, " %#x %#x\n", env->exception_index, env->error_code);
|
5037 | eaa728ee | bellard | } |
5038 | eaa728ee | bellard | } |
5039 | eaa728ee | bellard | |
5040 | eaa728ee | bellard | void helper_vmmcall(void) |
5041 | eaa728ee | bellard | { |
5042 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_VMMCALL, 0);
|
5043 | 872929aa | bellard | raise_exception(EXCP06_ILLOP); |
5044 | eaa728ee | bellard | } |
5045 | eaa728ee | bellard | |
5046 | 914178d3 | bellard | void helper_vmload(int aflag) |
5047 | eaa728ee | bellard | { |
5048 | eaa728ee | bellard | target_ulong addr; |
5049 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_VMLOAD, 0);
|
5050 | 872929aa | bellard | |
5051 | 914178d3 | bellard | if (aflag == 2) |
5052 | 914178d3 | bellard | addr = EAX; |
5053 | 914178d3 | bellard | else
|
5054 | 914178d3 | bellard | addr = (uint32_t)EAX; |
5055 | 914178d3 | bellard | |
5056 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "vmload! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n", |
5057 | eaa728ee | bellard | addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
|
5058 | eaa728ee | bellard | env->segs[R_FS].base); |
5059 | eaa728ee | bellard | |
5060 | 872929aa | bellard | svm_load_seg_cache(addr + offsetof(struct vmcb, save.fs),
|
5061 | 872929aa | bellard | env, R_FS); |
5062 | 872929aa | bellard | svm_load_seg_cache(addr + offsetof(struct vmcb, save.gs),
|
5063 | 872929aa | bellard | env, R_GS); |
5064 | 872929aa | bellard | svm_load_seg(addr + offsetof(struct vmcb, save.tr),
|
5065 | 872929aa | bellard | &env->tr); |
5066 | 872929aa | bellard | svm_load_seg(addr + offsetof(struct vmcb, save.ldtr),
|
5067 | 872929aa | bellard | &env->ldt); |
5068 | eaa728ee | bellard | |
5069 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
5070 | eaa728ee | bellard | env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
|
5071 | eaa728ee | bellard | env->lstar = ldq_phys(addr + offsetof(struct vmcb, save.lstar));
|
5072 | eaa728ee | bellard | env->cstar = ldq_phys(addr + offsetof(struct vmcb, save.cstar));
|
5073 | eaa728ee | bellard | env->fmask = ldq_phys(addr + offsetof(struct vmcb, save.sfmask));
|
5074 | eaa728ee | bellard | #endif
|
5075 | eaa728ee | bellard | env->star = ldq_phys(addr + offsetof(struct vmcb, save.star));
|
5076 | eaa728ee | bellard | env->sysenter_cs = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_cs));
|
5077 | eaa728ee | bellard | env->sysenter_esp = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_esp));
|
5078 | eaa728ee | bellard | env->sysenter_eip = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_eip));
|
5079 | eaa728ee | bellard | } |
5080 | eaa728ee | bellard | |
5081 | 914178d3 | bellard | void helper_vmsave(int aflag) |
5082 | eaa728ee | bellard | { |
5083 | eaa728ee | bellard | target_ulong addr; |
5084 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_VMSAVE, 0);
|
5085 | 914178d3 | bellard | |
5086 | 914178d3 | bellard | if (aflag == 2) |
5087 | 914178d3 | bellard | addr = EAX; |
5088 | 914178d3 | bellard | else
|
5089 | 914178d3 | bellard | addr = (uint32_t)EAX; |
5090 | 914178d3 | bellard | |
5091 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "vmsave! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n", |
5092 | eaa728ee | bellard | addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
|
5093 | eaa728ee | bellard | env->segs[R_FS].base); |
5094 | eaa728ee | bellard | |
5095 | 872929aa | bellard | svm_save_seg(addr + offsetof(struct vmcb, save.fs),
|
5096 | 872929aa | bellard | &env->segs[R_FS]); |
5097 | 872929aa | bellard | svm_save_seg(addr + offsetof(struct vmcb, save.gs),
|
5098 | 872929aa | bellard | &env->segs[R_GS]); |
5099 | 872929aa | bellard | svm_save_seg(addr + offsetof(struct vmcb, save.tr),
|
5100 | 872929aa | bellard | &env->tr); |
5101 | 872929aa | bellard | svm_save_seg(addr + offsetof(struct vmcb, save.ldtr),
|
5102 | 872929aa | bellard | &env->ldt); |
5103 | eaa728ee | bellard | |
5104 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
5105 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
|
5106 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.lstar), env->lstar);
|
5107 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.cstar), env->cstar);
|
5108 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.sfmask), env->fmask);
|
5109 | eaa728ee | bellard | #endif
|
5110 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.star), env->star);
|
5111 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.sysenter_cs), env->sysenter_cs);
|
5112 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.sysenter_esp), env->sysenter_esp);
|
5113 | eaa728ee | bellard | stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
|
5114 | eaa728ee | bellard | } |
5115 | eaa728ee | bellard | |
5116 | 872929aa | bellard | void helper_stgi(void) |
5117 | 872929aa | bellard | { |
5118 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_STGI, 0);
|
5119 | db620f46 | bellard | env->hflags2 |= HF2_GIF_MASK; |
5120 | 872929aa | bellard | } |
5121 | 872929aa | bellard | |
5122 | 872929aa | bellard | void helper_clgi(void) |
5123 | 872929aa | bellard | { |
5124 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_CLGI, 0);
|
5125 | db620f46 | bellard | env->hflags2 &= ~HF2_GIF_MASK; |
5126 | 872929aa | bellard | } |
5127 | 872929aa | bellard | |
5128 | eaa728ee | bellard | void helper_skinit(void) |
5129 | eaa728ee | bellard | { |
5130 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_SKINIT, 0);
|
5131 | 872929aa | bellard | /* XXX: not implemented */
|
5132 | 872929aa | bellard | raise_exception(EXCP06_ILLOP); |
5133 | eaa728ee | bellard | } |
5134 | eaa728ee | bellard | |
5135 | 914178d3 | bellard | void helper_invlpga(int aflag) |
5136 | eaa728ee | bellard | { |
5137 | 914178d3 | bellard | target_ulong addr; |
5138 | 872929aa | bellard | helper_svm_check_intercept_param(SVM_EXIT_INVLPGA, 0);
|
5139 | 914178d3 | bellard | |
5140 | 914178d3 | bellard | if (aflag == 2) |
5141 | 914178d3 | bellard | addr = EAX; |
5142 | 914178d3 | bellard | else
|
5143 | 914178d3 | bellard | addr = (uint32_t)EAX; |
5144 | 914178d3 | bellard | |
5145 | 914178d3 | bellard | /* XXX: could use the ASID to see if it is needed to do the
|
5146 | 914178d3 | bellard | flush */
|
5147 | 914178d3 | bellard | tlb_flush_page(env, addr); |
5148 | eaa728ee | bellard | } |
5149 | eaa728ee | bellard | |
5150 | eaa728ee | bellard | void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
|
5151 | eaa728ee | bellard | { |
5152 | 872929aa | bellard | if (likely(!(env->hflags & HF_SVMI_MASK)))
|
5153 | 872929aa | bellard | return;
|
5154 | eaa728ee | bellard | switch(type) {
|
5155 | eaa728ee | bellard | case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8: |
5156 | 872929aa | bellard | if (env->intercept_cr_read & (1 << (type - SVM_EXIT_READ_CR0))) { |
5157 | eaa728ee | bellard | helper_vmexit(type, param); |
5158 | eaa728ee | bellard | } |
5159 | eaa728ee | bellard | break;
|
5160 | 872929aa | bellard | case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8: |
5161 | 872929aa | bellard | if (env->intercept_cr_write & (1 << (type - SVM_EXIT_WRITE_CR0))) { |
5162 | eaa728ee | bellard | helper_vmexit(type, param); |
5163 | eaa728ee | bellard | } |
5164 | eaa728ee | bellard | break;
|
5165 | 872929aa | bellard | case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 7: |
5166 | 872929aa | bellard | if (env->intercept_dr_read & (1 << (type - SVM_EXIT_READ_DR0))) { |
5167 | eaa728ee | bellard | helper_vmexit(type, param); |
5168 | eaa728ee | bellard | } |
5169 | eaa728ee | bellard | break;
|
5170 | 872929aa | bellard | case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 7: |
5171 | 872929aa | bellard | if (env->intercept_dr_write & (1 << (type - SVM_EXIT_WRITE_DR0))) { |
5172 | eaa728ee | bellard | helper_vmexit(type, param); |
5173 | eaa728ee | bellard | } |
5174 | eaa728ee | bellard | break;
|
5175 | 872929aa | bellard | case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 31: |
5176 | 872929aa | bellard | if (env->intercept_exceptions & (1 << (type - SVM_EXIT_EXCP_BASE))) { |
5177 | eaa728ee | bellard | helper_vmexit(type, param); |
5178 | eaa728ee | bellard | } |
5179 | eaa728ee | bellard | break;
|
5180 | eaa728ee | bellard | case SVM_EXIT_MSR:
|
5181 | 872929aa | bellard | if (env->intercept & (1ULL << (SVM_EXIT_MSR - SVM_EXIT_INTR))) { |
5182 | eaa728ee | bellard | /* FIXME: this should be read in at vmrun (faster this way?) */
|
5183 | eaa728ee | bellard | uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.msrpm_base_pa));
|
5184 | eaa728ee | bellard | uint32_t t0, t1; |
5185 | eaa728ee | bellard | switch((uint32_t)ECX) {
|
5186 | eaa728ee | bellard | case 0 ... 0x1fff: |
5187 | eaa728ee | bellard | t0 = (ECX * 2) % 8; |
5188 | eaa728ee | bellard | t1 = ECX / 8;
|
5189 | eaa728ee | bellard | break;
|
5190 | eaa728ee | bellard | case 0xc0000000 ... 0xc0001fff: |
5191 | eaa728ee | bellard | t0 = (8192 + ECX - 0xc0000000) * 2; |
5192 | eaa728ee | bellard | t1 = (t0 / 8);
|
5193 | eaa728ee | bellard | t0 %= 8;
|
5194 | eaa728ee | bellard | break;
|
5195 | eaa728ee | bellard | case 0xc0010000 ... 0xc0011fff: |
5196 | eaa728ee | bellard | t0 = (16384 + ECX - 0xc0010000) * 2; |
5197 | eaa728ee | bellard | t1 = (t0 / 8);
|
5198 | eaa728ee | bellard | t0 %= 8;
|
5199 | eaa728ee | bellard | break;
|
5200 | eaa728ee | bellard | default:
|
5201 | eaa728ee | bellard | helper_vmexit(type, param); |
5202 | eaa728ee | bellard | t0 = 0;
|
5203 | eaa728ee | bellard | t1 = 0;
|
5204 | eaa728ee | bellard | break;
|
5205 | eaa728ee | bellard | } |
5206 | eaa728ee | bellard | if (ldub_phys(addr + t1) & ((1 << param) << t0)) |
5207 | eaa728ee | bellard | helper_vmexit(type, param); |
5208 | eaa728ee | bellard | } |
5209 | eaa728ee | bellard | break;
|
5210 | eaa728ee | bellard | default:
|
5211 | 872929aa | bellard | if (env->intercept & (1ULL << (type - SVM_EXIT_INTR))) { |
5212 | eaa728ee | bellard | helper_vmexit(type, param); |
5213 | eaa728ee | bellard | } |
5214 | eaa728ee | bellard | break;
|
5215 | eaa728ee | bellard | } |
5216 | eaa728ee | bellard | } |
5217 | eaa728ee | bellard | |
5218 | eaa728ee | bellard | void helper_svm_check_io(uint32_t port, uint32_t param,
|
5219 | eaa728ee | bellard | uint32_t next_eip_addend) |
5220 | eaa728ee | bellard | { |
5221 | 872929aa | bellard | if (env->intercept & (1ULL << (SVM_EXIT_IOIO - SVM_EXIT_INTR))) { |
5222 | eaa728ee | bellard | /* FIXME: this should be read in at vmrun (faster this way?) */
|
5223 | eaa728ee | bellard | uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa));
|
5224 | eaa728ee | bellard | uint16_t mask = (1 << ((param >> 4) & 7)) - 1; |
5225 | eaa728ee | bellard | if(lduw_phys(addr + port / 8) & (mask << (port & 7))) { |
5226 | eaa728ee | bellard | /* next EIP */
|
5227 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
|
5228 | eaa728ee | bellard | env->eip + next_eip_addend); |
5229 | eaa728ee | bellard | helper_vmexit(SVM_EXIT_IOIO, param | (port << 16));
|
5230 | eaa728ee | bellard | } |
5231 | eaa728ee | bellard | } |
5232 | eaa728ee | bellard | } |
5233 | eaa728ee | bellard | |
5234 | eaa728ee | bellard | /* Note: currently only 32 bits of exit_code are used */
|
5235 | eaa728ee | bellard | void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
|
5236 | eaa728ee | bellard | { |
5237 | eaa728ee | bellard | uint32_t int_ctl; |
5238 | eaa728ee | bellard | |
5239 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "vmexit(%08x, %016" PRIx64 ", %016" PRIx64 ", " TARGET_FMT_lx ")!\n", |
5240 | eaa728ee | bellard | exit_code, exit_info_1, |
5241 | eaa728ee | bellard | ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2)),
|
5242 | eaa728ee | bellard | EIP); |
5243 | eaa728ee | bellard | |
5244 | eaa728ee | bellard | if(env->hflags & HF_INHIBIT_IRQ_MASK) {
|
5245 | eaa728ee | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), SVM_INTERRUPT_SHADOW_MASK);
|
5246 | eaa728ee | bellard | env->hflags &= ~HF_INHIBIT_IRQ_MASK; |
5247 | eaa728ee | bellard | } else {
|
5248 | eaa728ee | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), 0); |
5249 | eaa728ee | bellard | } |
5250 | eaa728ee | bellard | |
5251 | eaa728ee | bellard | /* Save the VM state in the vmcb */
|
5252 | 872929aa | bellard | svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.es),
|
5253 | 872929aa | bellard | &env->segs[R_ES]); |
5254 | 872929aa | bellard | svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.cs),
|
5255 | 872929aa | bellard | &env->segs[R_CS]); |
5256 | 872929aa | bellard | svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ss),
|
5257 | 872929aa | bellard | &env->segs[R_SS]); |
5258 | 872929aa | bellard | svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ds),
|
5259 | 872929aa | bellard | &env->segs[R_DS]); |
5260 | eaa728ee | bellard | |
5261 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
|
5262 | eaa728ee | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
|
5263 | eaa728ee | bellard | |
5264 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base), env->idt.base);
|
5265 | eaa728ee | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
|
5266 | eaa728ee | bellard | |
5267 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer), env->efer);
|
5268 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0), env->cr[0]); |
5269 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2), env->cr[2]); |
5270 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3), env->cr[3]); |
5271 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4), env->cr[4]); |
5272 | eaa728ee | bellard | |
5273 | db620f46 | bellard | int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
|
5274 | db620f46 | bellard | int_ctl &= ~(V_TPR_MASK | V_IRQ_MASK); |
5275 | db620f46 | bellard | int_ctl |= env->v_tpr & V_TPR_MASK; |
5276 | db620f46 | bellard | if (env->interrupt_request & CPU_INTERRUPT_VIRQ)
|
5277 | db620f46 | bellard | int_ctl |= V_IRQ_MASK; |
5278 | db620f46 | bellard | stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl), int_ctl);
|
5279 | eaa728ee | bellard | |
5280 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags), compute_eflags());
|
5281 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
|
5282 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
|
5283 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
|
5284 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]); |
5285 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6), env->dr[6]); |
5286 | eaa728ee | bellard | stb_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl), env->hflags & HF_CPL_MASK);
|
5287 | eaa728ee | bellard | |
5288 | eaa728ee | bellard | /* Reload the host state from vm_hsave */
|
5289 | db620f46 | bellard | env->hflags2 &= ~(HF2_HIF_MASK | HF2_VINTR_MASK); |
5290 | 872929aa | bellard | env->hflags &= ~HF_SVMI_MASK; |
5291 | eaa728ee | bellard | env->intercept = 0;
|
5292 | eaa728ee | bellard | env->intercept_exceptions = 0;
|
5293 | eaa728ee | bellard | env->interrupt_request &= ~CPU_INTERRUPT_VIRQ; |
5294 | 33c263df | bellard | env->tsc_offset = 0;
|
5295 | eaa728ee | bellard | |
5296 | eaa728ee | bellard | env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base));
|
5297 | eaa728ee | bellard | env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit));
|
5298 | eaa728ee | bellard | |
5299 | eaa728ee | bellard | env->idt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base));
|
5300 | eaa728ee | bellard | env->idt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit));
|
5301 | eaa728ee | bellard | |
5302 | eaa728ee | bellard | cpu_x86_update_cr0(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0)) | CR0_PE_MASK);
|
5303 | eaa728ee | bellard | cpu_x86_update_cr4(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4)));
|
5304 | eaa728ee | bellard | cpu_x86_update_cr3(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3)));
|
5305 | 5efc27bb | bellard | /* we need to set the efer after the crs so the hidden flags get
|
5306 | 5efc27bb | bellard | set properly */
|
5307 | 5efc27bb | bellard | cpu_load_efer(env, |
5308 | 5efc27bb | bellard | ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer)));
|
5309 | eaa728ee | bellard | env->eflags = 0;
|
5310 | eaa728ee | bellard | load_eflags(ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags)),
|
5311 | eaa728ee | bellard | ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK)); |
5312 | eaa728ee | bellard | CC_OP = CC_OP_EFLAGS; |
5313 | eaa728ee | bellard | |
5314 | 872929aa | bellard | svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.es),
|
5315 | 872929aa | bellard | env, R_ES); |
5316 | 872929aa | bellard | svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.cs),
|
5317 | 872929aa | bellard | env, R_CS); |
5318 | 872929aa | bellard | svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ss),
|
5319 | 872929aa | bellard | env, R_SS); |
5320 | 872929aa | bellard | svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ds),
|
5321 | 872929aa | bellard | env, R_DS); |
5322 | eaa728ee | bellard | |
5323 | eaa728ee | bellard | EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
|
5324 | eaa728ee | bellard | ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
|
5325 | eaa728ee | bellard | EAX = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax));
|
5326 | eaa728ee | bellard | |
5327 | eaa728ee | bellard | env->dr[6] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6)); |
5328 | eaa728ee | bellard | env->dr[7] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7)); |
5329 | eaa728ee | bellard | |
5330 | eaa728ee | bellard | /* other setups */
|
5331 | eaa728ee | bellard | cpu_x86_set_cpl(env, 0);
|
5332 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code), exit_code);
|
5333 | eaa728ee | bellard | stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_1), exit_info_1);
|
5334 | eaa728ee | bellard | |
5335 | 960540b4 | bellard | env->hflags2 &= ~HF2_GIF_MASK; |
5336 | eaa728ee | bellard | /* FIXME: Resets the current ASID register to zero (host ASID). */
|
5337 | eaa728ee | bellard | |
5338 | eaa728ee | bellard | /* Clears the V_IRQ and V_INTR_MASKING bits inside the processor. */
|
5339 | eaa728ee | bellard | |
5340 | eaa728ee | bellard | /* Clears the TSC_OFFSET inside the processor. */
|
5341 | eaa728ee | bellard | |
5342 | eaa728ee | bellard | /* If the host is in PAE mode, the processor reloads the host's PDPEs
|
5343 | eaa728ee | bellard | from the page table indicated the host's CR3. If the PDPEs contain
|
5344 | eaa728ee | bellard | illegal state, the processor causes a shutdown. */
|
5345 | eaa728ee | bellard | |
5346 | eaa728ee | bellard | /* Forces CR0.PE = 1, RFLAGS.VM = 0. */
|
5347 | eaa728ee | bellard | env->cr[0] |= CR0_PE_MASK;
|
5348 | eaa728ee | bellard | env->eflags &= ~VM_MASK; |
5349 | eaa728ee | bellard | |
5350 | eaa728ee | bellard | /* Disables all breakpoints in the host DR7 register. */
|
5351 | eaa728ee | bellard | |
5352 | eaa728ee | bellard | /* Checks the reloaded host state for consistency. */
|
5353 | eaa728ee | bellard | |
5354 | eaa728ee | bellard | /* If the host's rIP reloaded by #VMEXIT is outside the limit of the
|
5355 | eaa728ee | bellard | host's code segment or non-canonical (in the case of long mode), a
|
5356 | eaa728ee | bellard | #GP fault is delivered inside the host.) */
|
5357 | eaa728ee | bellard | |
5358 | eaa728ee | bellard | /* remove any pending exception */
|
5359 | eaa728ee | bellard | env->exception_index = -1;
|
5360 | eaa728ee | bellard | env->error_code = 0;
|
5361 | eaa728ee | bellard | env->old_exception = -1;
|
5362 | eaa728ee | bellard | |
5363 | eaa728ee | bellard | cpu_loop_exit(); |
5364 | eaa728ee | bellard | } |
5365 | eaa728ee | bellard | |
5366 | eaa728ee | bellard | #endif
|
5367 | eaa728ee | bellard | |
5368 | eaa728ee | bellard | /* MMX/SSE */
|
5369 | eaa728ee | bellard | /* XXX: optimize by storing fptt and fptags in the static cpu state */
|
5370 | eaa728ee | bellard | void helper_enter_mmx(void) |
5371 | eaa728ee | bellard | { |
5372 | eaa728ee | bellard | env->fpstt = 0;
|
5373 | eaa728ee | bellard | *(uint32_t *)(env->fptags) = 0;
|
5374 | eaa728ee | bellard | *(uint32_t *)(env->fptags + 4) = 0; |
5375 | eaa728ee | bellard | } |
5376 | eaa728ee | bellard | |
5377 | eaa728ee | bellard | void helper_emms(void) |
5378 | eaa728ee | bellard | { |
5379 | eaa728ee | bellard | /* set to empty state */
|
5380 | eaa728ee | bellard | *(uint32_t *)(env->fptags) = 0x01010101;
|
5381 | eaa728ee | bellard | *(uint32_t *)(env->fptags + 4) = 0x01010101; |
5382 | eaa728ee | bellard | } |
5383 | eaa728ee | bellard | |
5384 | eaa728ee | bellard | /* XXX: suppress */
|
5385 | a7812ae4 | pbrook | void helper_movq(void *d, void *s) |
5386 | eaa728ee | bellard | { |
5387 | a7812ae4 | pbrook | *(uint64_t *)d = *(uint64_t *)s; |
5388 | eaa728ee | bellard | } |
5389 | eaa728ee | bellard | |
5390 | eaa728ee | bellard | #define SHIFT 0 |
5391 | eaa728ee | bellard | #include "ops_sse.h" |
5392 | eaa728ee | bellard | |
5393 | eaa728ee | bellard | #define SHIFT 1 |
5394 | eaa728ee | bellard | #include "ops_sse.h" |
5395 | eaa728ee | bellard | |
5396 | eaa728ee | bellard | #define SHIFT 0 |
5397 | eaa728ee | bellard | #include "helper_template.h" |
5398 | eaa728ee | bellard | #undef SHIFT
|
5399 | eaa728ee | bellard | |
5400 | eaa728ee | bellard | #define SHIFT 1 |
5401 | eaa728ee | bellard | #include "helper_template.h" |
5402 | eaa728ee | bellard | #undef SHIFT
|
5403 | eaa728ee | bellard | |
5404 | eaa728ee | bellard | #define SHIFT 2 |
5405 | eaa728ee | bellard | #include "helper_template.h" |
5406 | eaa728ee | bellard | #undef SHIFT
|
5407 | eaa728ee | bellard | |
5408 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
5409 | eaa728ee | bellard | |
5410 | eaa728ee | bellard | #define SHIFT 3 |
5411 | eaa728ee | bellard | #include "helper_template.h" |
5412 | eaa728ee | bellard | #undef SHIFT
|
5413 | eaa728ee | bellard | |
5414 | eaa728ee | bellard | #endif
|
5415 | eaa728ee | bellard | |
5416 | eaa728ee | bellard | /* bit operations */
|
5417 | eaa728ee | bellard | target_ulong helper_bsf(target_ulong t0) |
5418 | eaa728ee | bellard | { |
5419 | eaa728ee | bellard | int count;
|
5420 | eaa728ee | bellard | target_ulong res; |
5421 | eaa728ee | bellard | |
5422 | eaa728ee | bellard | res = t0; |
5423 | eaa728ee | bellard | count = 0;
|
5424 | eaa728ee | bellard | while ((res & 1) == 0) { |
5425 | eaa728ee | bellard | count++; |
5426 | eaa728ee | bellard | res >>= 1;
|
5427 | eaa728ee | bellard | } |
5428 | eaa728ee | bellard | return count;
|
5429 | eaa728ee | bellard | } |
5430 | eaa728ee | bellard | |
5431 | eaa728ee | bellard | target_ulong helper_bsr(target_ulong t0) |
5432 | eaa728ee | bellard | { |
5433 | eaa728ee | bellard | int count;
|
5434 | eaa728ee | bellard | target_ulong res, mask; |
5435 | eaa728ee | bellard | |
5436 | eaa728ee | bellard | res = t0; |
5437 | eaa728ee | bellard | count = TARGET_LONG_BITS - 1;
|
5438 | eaa728ee | bellard | mask = (target_ulong)1 << (TARGET_LONG_BITS - 1); |
5439 | eaa728ee | bellard | while ((res & mask) == 0) { |
5440 | eaa728ee | bellard | count--; |
5441 | eaa728ee | bellard | res <<= 1;
|
5442 | eaa728ee | bellard | } |
5443 | eaa728ee | bellard | return count;
|
5444 | eaa728ee | bellard | } |
5445 | eaa728ee | bellard | |
5446 | eaa728ee | bellard | |
5447 | eaa728ee | bellard | static int compute_all_eflags(void) |
5448 | eaa728ee | bellard | { |
5449 | eaa728ee | bellard | return CC_SRC;
|
5450 | eaa728ee | bellard | } |
5451 | eaa728ee | bellard | |
5452 | eaa728ee | bellard | static int compute_c_eflags(void) |
5453 | eaa728ee | bellard | { |
5454 | eaa728ee | bellard | return CC_SRC & CC_C;
|
5455 | eaa728ee | bellard | } |
5456 | eaa728ee | bellard | |
5457 | a7812ae4 | pbrook | uint32_t helper_cc_compute_all(int op)
|
5458 | a7812ae4 | pbrook | { |
5459 | a7812ae4 | pbrook | switch (op) {
|
5460 | a7812ae4 | pbrook | default: /* should never happen */ return 0; |
5461 | eaa728ee | bellard | |
5462 | a7812ae4 | pbrook | case CC_OP_EFLAGS: return compute_all_eflags(); |
5463 | eaa728ee | bellard | |
5464 | a7812ae4 | pbrook | case CC_OP_MULB: return compute_all_mulb(); |
5465 | a7812ae4 | pbrook | case CC_OP_MULW: return compute_all_mulw(); |
5466 | a7812ae4 | pbrook | case CC_OP_MULL: return compute_all_mull(); |
5467 | eaa728ee | bellard | |
5468 | a7812ae4 | pbrook | case CC_OP_ADDB: return compute_all_addb(); |
5469 | a7812ae4 | pbrook | case CC_OP_ADDW: return compute_all_addw(); |
5470 | a7812ae4 | pbrook | case CC_OP_ADDL: return compute_all_addl(); |
5471 | eaa728ee | bellard | |
5472 | a7812ae4 | pbrook | case CC_OP_ADCB: return compute_all_adcb(); |
5473 | a7812ae4 | pbrook | case CC_OP_ADCW: return compute_all_adcw(); |
5474 | a7812ae4 | pbrook | case CC_OP_ADCL: return compute_all_adcl(); |
5475 | eaa728ee | bellard | |
5476 | a7812ae4 | pbrook | case CC_OP_SUBB: return compute_all_subb(); |
5477 | a7812ae4 | pbrook | case CC_OP_SUBW: return compute_all_subw(); |
5478 | a7812ae4 | pbrook | case CC_OP_SUBL: return compute_all_subl(); |
5479 | eaa728ee | bellard | |
5480 | a7812ae4 | pbrook | case CC_OP_SBBB: return compute_all_sbbb(); |
5481 | a7812ae4 | pbrook | case CC_OP_SBBW: return compute_all_sbbw(); |
5482 | a7812ae4 | pbrook | case CC_OP_SBBL: return compute_all_sbbl(); |
5483 | eaa728ee | bellard | |
5484 | a7812ae4 | pbrook | case CC_OP_LOGICB: return compute_all_logicb(); |
5485 | a7812ae4 | pbrook | case CC_OP_LOGICW: return compute_all_logicw(); |
5486 | a7812ae4 | pbrook | case CC_OP_LOGICL: return compute_all_logicl(); |
5487 | eaa728ee | bellard | |
5488 | a7812ae4 | pbrook | case CC_OP_INCB: return compute_all_incb(); |
5489 | a7812ae4 | pbrook | case CC_OP_INCW: return compute_all_incw(); |
5490 | a7812ae4 | pbrook | case CC_OP_INCL: return compute_all_incl(); |
5491 | eaa728ee | bellard | |
5492 | a7812ae4 | pbrook | case CC_OP_DECB: return compute_all_decb(); |
5493 | a7812ae4 | pbrook | case CC_OP_DECW: return compute_all_decw(); |
5494 | a7812ae4 | pbrook | case CC_OP_DECL: return compute_all_decl(); |
5495 | eaa728ee | bellard | |
5496 | a7812ae4 | pbrook | case CC_OP_SHLB: return compute_all_shlb(); |
5497 | a7812ae4 | pbrook | case CC_OP_SHLW: return compute_all_shlw(); |
5498 | a7812ae4 | pbrook | case CC_OP_SHLL: return compute_all_shll(); |
5499 | eaa728ee | bellard | |
5500 | a7812ae4 | pbrook | case CC_OP_SARB: return compute_all_sarb(); |
5501 | a7812ae4 | pbrook | case CC_OP_SARW: return compute_all_sarw(); |
5502 | a7812ae4 | pbrook | case CC_OP_SARL: return compute_all_sarl(); |
5503 | eaa728ee | bellard | |
5504 | eaa728ee | bellard | #ifdef TARGET_X86_64
|
5505 | a7812ae4 | pbrook | case CC_OP_MULQ: return compute_all_mulq(); |
5506 | eaa728ee | bellard | |
5507 | a7812ae4 | pbrook | case CC_OP_ADDQ: return compute_all_addq(); |
5508 | eaa728ee | bellard | |
5509 | a7812ae4 | pbrook | case CC_OP_ADCQ: return compute_all_adcq(); |
5510 | eaa728ee | bellard | |
5511 | a7812ae4 | pbrook | case CC_OP_SUBQ: return compute_all_subq(); |
5512 | eaa728ee | bellard | |
5513 | a7812ae4 | pbrook | case CC_OP_SBBQ: return compute_all_sbbq(); |
5514 | eaa728ee | bellard | |
5515 | a7812ae4 | pbrook | case CC_OP_LOGICQ: return compute_all_logicq(); |
5516 | eaa728ee | bellard | |
5517 | a7812ae4 | pbrook | case CC_OP_INCQ: return compute_all_incq(); |
5518 | eaa728ee | bellard | |
5519 | a7812ae4 | pbrook | case CC_OP_DECQ: return compute_all_decq(); |
5520 | eaa728ee | bellard | |
5521 | a7812ae4 | pbrook | case CC_OP_SHLQ: return compute_all_shlq(); |
5522 | eaa728ee | bellard | |
5523 | a7812ae4 | pbrook | case CC_OP_SARQ: return compute_all_sarq(); |
5524 | eaa728ee | bellard | #endif
|
5525 | a7812ae4 | pbrook | } |
5526 | a7812ae4 | pbrook | } |
5527 | a7812ae4 | pbrook | |
5528 | a7812ae4 | pbrook | uint32_t helper_cc_compute_c(int op)
|
5529 | a7812ae4 | pbrook | { |
5530 | a7812ae4 | pbrook | switch (op) {
|
5531 | a7812ae4 | pbrook | default: /* should never happen */ return 0; |
5532 | a7812ae4 | pbrook | |
5533 | a7812ae4 | pbrook | case CC_OP_EFLAGS: return compute_c_eflags(); |
5534 | a7812ae4 | pbrook | |
5535 | a7812ae4 | pbrook | case CC_OP_MULB: return compute_c_mull(); |
5536 | a7812ae4 | pbrook | case CC_OP_MULW: return compute_c_mull(); |
5537 | a7812ae4 | pbrook | case CC_OP_MULL: return compute_c_mull(); |
5538 | a7812ae4 | pbrook | |
5539 | a7812ae4 | pbrook | case CC_OP_ADDB: return compute_c_addb(); |
5540 | a7812ae4 | pbrook | case CC_OP_ADDW: return compute_c_addw(); |
5541 | a7812ae4 | pbrook | case CC_OP_ADDL: return compute_c_addl(); |
5542 | a7812ae4 | pbrook | |
5543 | a7812ae4 | pbrook | case CC_OP_ADCB: return compute_c_adcb(); |
5544 | a7812ae4 | pbrook | case CC_OP_ADCW: return compute_c_adcw(); |
5545 | a7812ae4 | pbrook | case CC_OP_ADCL: return compute_c_adcl(); |
5546 | a7812ae4 | pbrook | |
5547 | a7812ae4 | pbrook | case CC_OP_SUBB: return compute_c_subb(); |
5548 | a7812ae4 | pbrook | case CC_OP_SUBW: return compute_c_subw(); |
5549 | a7812ae4 | pbrook | case CC_OP_SUBL: return compute_c_subl(); |
5550 | a7812ae4 | pbrook | |
5551 | a7812ae4 | pbrook | case CC_OP_SBBB: return compute_c_sbbb(); |
5552 | a7812ae4 | pbrook | case CC_OP_SBBW: return compute_c_sbbw(); |
5553 | a7812ae4 | pbrook | case CC_OP_SBBL: return compute_c_sbbl(); |
5554 | a7812ae4 | pbrook | |
5555 | a7812ae4 | pbrook | case CC_OP_LOGICB: return compute_c_logicb(); |
5556 | a7812ae4 | pbrook | case CC_OP_LOGICW: return compute_c_logicw(); |
5557 | a7812ae4 | pbrook | case CC_OP_LOGICL: return compute_c_logicl(); |
5558 | a7812ae4 | pbrook | |
5559 | a7812ae4 | pbrook | case CC_OP_INCB: return compute_c_incl(); |
5560 | a7812ae4 | pbrook | case CC_OP_INCW: return compute_c_incl(); |
5561 | a7812ae4 | pbrook | case CC_OP_INCL: return compute_c_incl(); |
5562 | a7812ae4 | pbrook | |
5563 | a7812ae4 | pbrook | case CC_OP_DECB: return compute_c_incl(); |
5564 | a7812ae4 | pbrook | case CC_OP_DECW: return compute_c_incl(); |
5565 | a7812ae4 | pbrook | case CC_OP_DECL: return compute_c_incl(); |
5566 | eaa728ee | bellard | |
5567 | a7812ae4 | pbrook | case CC_OP_SHLB: return compute_c_shlb(); |
5568 | a7812ae4 | pbrook | case CC_OP_SHLW: return compute_c_shlw(); |
5569 | a7812ae4 | pbrook | case CC_OP_SHLL: return compute_c_shll(); |
5570 | a7812ae4 | pbrook | |
5571 | a7812ae4 | pbrook | case CC_OP_SARB: return compute_c_sarl(); |
5572 | a7812ae4 | pbrook | case CC_OP_SARW: return compute_c_sarl(); |
5573 | a7812ae4 | pbrook | case CC_OP_SARL: return compute_c_sarl(); |
5574 | a7812ae4 | pbrook | |
5575 | a7812ae4 | pbrook | #ifdef TARGET_X86_64
|
5576 | a7812ae4 | pbrook | case CC_OP_MULQ: return compute_c_mull(); |
5577 | a7812ae4 | pbrook | |
5578 | a7812ae4 | pbrook | case CC_OP_ADDQ: return compute_c_addq(); |
5579 | a7812ae4 | pbrook | |
5580 | a7812ae4 | pbrook | case CC_OP_ADCQ: return compute_c_adcq(); |
5581 | a7812ae4 | pbrook | |
5582 | a7812ae4 | pbrook | case CC_OP_SUBQ: return compute_c_subq(); |
5583 | a7812ae4 | pbrook | |
5584 | a7812ae4 | pbrook | case CC_OP_SBBQ: return compute_c_sbbq(); |
5585 | a7812ae4 | pbrook | |
5586 | a7812ae4 | pbrook | case CC_OP_LOGICQ: return compute_c_logicq(); |
5587 | a7812ae4 | pbrook | |
5588 | a7812ae4 | pbrook | case CC_OP_INCQ: return compute_c_incl(); |
5589 | a7812ae4 | pbrook | |
5590 | a7812ae4 | pbrook | case CC_OP_DECQ: return compute_c_incl(); |
5591 | a7812ae4 | pbrook | |
5592 | a7812ae4 | pbrook | case CC_OP_SHLQ: return compute_c_shlq(); |
5593 | a7812ae4 | pbrook | |
5594 | a7812ae4 | pbrook | case CC_OP_SARQ: return compute_c_sarl(); |
5595 | a7812ae4 | pbrook | #endif
|
5596 | a7812ae4 | pbrook | } |
5597 | a7812ae4 | pbrook | } |