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1 | 7d13299d | bellard | /*
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2 | 7d13299d | bellard | * i386 emulator main execution loop
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3 | 5fafdf24 | ths | *
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4 | 66321a11 | bellard | * Copyright (c) 2003-2005 Fabrice Bellard
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5 | 7d13299d | bellard | *
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6 | 3ef693a0 | bellard | * This library is free software; you can redistribute it and/or
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7 | 3ef693a0 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | 3ef693a0 | bellard | * License as published by the Free Software Foundation; either
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9 | 3ef693a0 | bellard | * version 2 of the License, or (at your option) any later version.
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10 | 7d13299d | bellard | *
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11 | 3ef693a0 | bellard | * This library is distributed in the hope that it will be useful,
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12 | 3ef693a0 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 3ef693a0 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 3ef693a0 | bellard | * Lesser General Public License for more details.
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15 | 7d13299d | bellard | *
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16 | 3ef693a0 | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | 7d13299d | bellard | */
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19 | e4533c7a | bellard | #include "config.h" |
20 | cea5f9a2 | Blue Swirl | #include "cpu.h" |
21 | 956034d7 | bellard | #include "disas.h" |
22 | 7cb69cae | bellard | #include "tcg.h" |
23 | 1d93f0f0 | Jan Kiszka | #include "qemu-barrier.h" |
24 | 7d13299d | bellard | |
25 | 36bdbe54 | bellard | int tb_invalidated_flag;
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26 | 36bdbe54 | bellard | |
27 | f0667e66 | Juan Quintela | //#define CONFIG_DEBUG_EXEC
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28 | 7d13299d | bellard | |
29 | f3e27037 | Blue Swirl | bool qemu_cpu_has_work(CPUState *env)
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30 | 6a4955a8 | aliguori | { |
31 | 6a4955a8 | aliguori | return cpu_has_work(env);
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32 | 6a4955a8 | aliguori | } |
33 | 6a4955a8 | aliguori | |
34 | cea5f9a2 | Blue Swirl | void cpu_loop_exit(CPUState *env)
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35 | e4533c7a | bellard | { |
36 | cea5f9a2 | Blue Swirl | env->current_tb = NULL;
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37 | cea5f9a2 | Blue Swirl | longjmp(env->jmp_env, 1);
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38 | e4533c7a | bellard | } |
39 | bfed01fc | ths | |
40 | fbf9eeb3 | bellard | /* exit the current TB from a signal handler. The host registers are
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41 | fbf9eeb3 | bellard | restored in a state compatible with the CPU emulator
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42 | fbf9eeb3 | bellard | */
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43 | 9eff14f3 | Blue Swirl | #if defined(CONFIG_SOFTMMU)
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44 | cea5f9a2 | Blue Swirl | void cpu_resume_from_signal(CPUState *env, void *puc) |
45 | 9eff14f3 | Blue Swirl | { |
46 | 9eff14f3 | Blue Swirl | /* XXX: restore cpu registers saved in host registers */
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47 | 9eff14f3 | Blue Swirl | |
48 | 9eff14f3 | Blue Swirl | env->exception_index = -1;
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49 | 9eff14f3 | Blue Swirl | longjmp(env->jmp_env, 1);
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50 | 9eff14f3 | Blue Swirl | } |
51 | 9eff14f3 | Blue Swirl | #endif
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52 | fbf9eeb3 | bellard | |
53 | 2e70f6ef | pbrook | /* Execute the code without caching the generated code. An interpreter
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54 | 2e70f6ef | pbrook | could be used if available. */
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55 | cea5f9a2 | Blue Swirl | static void cpu_exec_nocache(CPUState *env, int max_cycles, |
56 | cea5f9a2 | Blue Swirl | TranslationBlock *orig_tb) |
57 | 2e70f6ef | pbrook | { |
58 | 2e70f6ef | pbrook | unsigned long next_tb; |
59 | 2e70f6ef | pbrook | TranslationBlock *tb; |
60 | 2e70f6ef | pbrook | |
61 | 2e70f6ef | pbrook | /* Should never happen.
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62 | 2e70f6ef | pbrook | We only end up here when an existing TB is too long. */
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63 | 2e70f6ef | pbrook | if (max_cycles > CF_COUNT_MASK)
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64 | 2e70f6ef | pbrook | max_cycles = CF_COUNT_MASK; |
65 | 2e70f6ef | pbrook | |
66 | 2e70f6ef | pbrook | tb = tb_gen_code(env, orig_tb->pc, orig_tb->cs_base, orig_tb->flags, |
67 | 2e70f6ef | pbrook | max_cycles); |
68 | 2e70f6ef | pbrook | env->current_tb = tb; |
69 | 2e70f6ef | pbrook | /* execute the generated code */
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70 | cea5f9a2 | Blue Swirl | next_tb = tcg_qemu_tb_exec(env, tb->tc_ptr); |
71 | 1c3569fe | Paolo Bonzini | env->current_tb = NULL;
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72 | 2e70f6ef | pbrook | |
73 | 2e70f6ef | pbrook | if ((next_tb & 3) == 2) { |
74 | 2e70f6ef | pbrook | /* Restore PC. This may happen if async event occurs before
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75 | 2e70f6ef | pbrook | the TB starts executing. */
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76 | 622ed360 | aliguori | cpu_pc_from_tb(env, tb); |
77 | 2e70f6ef | pbrook | } |
78 | 2e70f6ef | pbrook | tb_phys_invalidate(tb, -1);
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79 | 2e70f6ef | pbrook | tb_free(tb); |
80 | 2e70f6ef | pbrook | } |
81 | 2e70f6ef | pbrook | |
82 | cea5f9a2 | Blue Swirl | static TranslationBlock *tb_find_slow(CPUState *env,
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83 | cea5f9a2 | Blue Swirl | target_ulong pc, |
84 | 8a40a180 | bellard | target_ulong cs_base, |
85 | c068688b | j_mayer | uint64_t flags) |
86 | 8a40a180 | bellard | { |
87 | 8a40a180 | bellard | TranslationBlock *tb, **ptb1; |
88 | 8a40a180 | bellard | unsigned int h; |
89 | 337fc758 | Blue Swirl | tb_page_addr_t phys_pc, phys_page1; |
90 | 41c1b1c9 | Paul Brook | target_ulong virt_page2; |
91 | 3b46e624 | ths | |
92 | 8a40a180 | bellard | tb_invalidated_flag = 0;
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93 | 3b46e624 | ths | |
94 | 8a40a180 | bellard | /* find translated block using physical mappings */
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95 | 41c1b1c9 | Paul Brook | phys_pc = get_page_addr_code(env, pc); |
96 | 8a40a180 | bellard | phys_page1 = phys_pc & TARGET_PAGE_MASK; |
97 | 8a40a180 | bellard | h = tb_phys_hash_func(phys_pc); |
98 | 8a40a180 | bellard | ptb1 = &tb_phys_hash[h]; |
99 | 8a40a180 | bellard | for(;;) {
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100 | 8a40a180 | bellard | tb = *ptb1; |
101 | 8a40a180 | bellard | if (!tb)
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102 | 8a40a180 | bellard | goto not_found;
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103 | 5fafdf24 | ths | if (tb->pc == pc &&
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104 | 8a40a180 | bellard | tb->page_addr[0] == phys_page1 &&
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105 | 5fafdf24 | ths | tb->cs_base == cs_base && |
106 | 8a40a180 | bellard | tb->flags == flags) { |
107 | 8a40a180 | bellard | /* check next page if needed */
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108 | 8a40a180 | bellard | if (tb->page_addr[1] != -1) { |
109 | 337fc758 | Blue Swirl | tb_page_addr_t phys_page2; |
110 | 337fc758 | Blue Swirl | |
111 | 5fafdf24 | ths | virt_page2 = (pc & TARGET_PAGE_MASK) + |
112 | 8a40a180 | bellard | TARGET_PAGE_SIZE; |
113 | 41c1b1c9 | Paul Brook | phys_page2 = get_page_addr_code(env, virt_page2); |
114 | 8a40a180 | bellard | if (tb->page_addr[1] == phys_page2) |
115 | 8a40a180 | bellard | goto found;
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116 | 8a40a180 | bellard | } else {
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117 | 8a40a180 | bellard | goto found;
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118 | 8a40a180 | bellard | } |
119 | 8a40a180 | bellard | } |
120 | 8a40a180 | bellard | ptb1 = &tb->phys_hash_next; |
121 | 8a40a180 | bellard | } |
122 | 8a40a180 | bellard | not_found:
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123 | 2e70f6ef | pbrook | /* if no translated code available, then translate it now */
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124 | 2e70f6ef | pbrook | tb = tb_gen_code(env, pc, cs_base, flags, 0);
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125 | 3b46e624 | ths | |
126 | 8a40a180 | bellard | found:
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127 | 2c90fe2b | Kirill Batuzov | /* Move the last found TB to the head of the list */
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128 | 2c90fe2b | Kirill Batuzov | if (likely(*ptb1)) {
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129 | 2c90fe2b | Kirill Batuzov | *ptb1 = tb->phys_hash_next; |
130 | 2c90fe2b | Kirill Batuzov | tb->phys_hash_next = tb_phys_hash[h]; |
131 | 2c90fe2b | Kirill Batuzov | tb_phys_hash[h] = tb; |
132 | 2c90fe2b | Kirill Batuzov | } |
133 | 8a40a180 | bellard | /* we add the TB in the virtual pc hash table */
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134 | 8a40a180 | bellard | env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)] = tb; |
135 | 8a40a180 | bellard | return tb;
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136 | 8a40a180 | bellard | } |
137 | 8a40a180 | bellard | |
138 | cea5f9a2 | Blue Swirl | static inline TranslationBlock *tb_find_fast(CPUState *env) |
139 | 8a40a180 | bellard | { |
140 | 8a40a180 | bellard | TranslationBlock *tb; |
141 | 8a40a180 | bellard | target_ulong cs_base, pc; |
142 | 6b917547 | aliguori | int flags;
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143 | 8a40a180 | bellard | |
144 | 8a40a180 | bellard | /* we record a subset of the CPU state. It will
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145 | 8a40a180 | bellard | always be the same before a given translated block
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146 | 8a40a180 | bellard | is executed. */
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147 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags); |
148 | bce61846 | bellard | tb = env->tb_jmp_cache[tb_jmp_cache_hash_func(pc)]; |
149 | 551bd27f | ths | if (unlikely(!tb || tb->pc != pc || tb->cs_base != cs_base ||
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150 | 551bd27f | ths | tb->flags != flags)) { |
151 | cea5f9a2 | Blue Swirl | tb = tb_find_slow(env, pc, cs_base, flags); |
152 | 8a40a180 | bellard | } |
153 | 8a40a180 | bellard | return tb;
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154 | 8a40a180 | bellard | } |
155 | 8a40a180 | bellard | |
156 | 1009d2ed | Jan Kiszka | static CPUDebugExcpHandler *debug_excp_handler;
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157 | 1009d2ed | Jan Kiszka | |
158 | 1009d2ed | Jan Kiszka | CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler) |
159 | 1009d2ed | Jan Kiszka | { |
160 | 1009d2ed | Jan Kiszka | CPUDebugExcpHandler *old_handler = debug_excp_handler; |
161 | 1009d2ed | Jan Kiszka | |
162 | 1009d2ed | Jan Kiszka | debug_excp_handler = handler; |
163 | 1009d2ed | Jan Kiszka | return old_handler;
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164 | 1009d2ed | Jan Kiszka | } |
165 | 1009d2ed | Jan Kiszka | |
166 | 1009d2ed | Jan Kiszka | static void cpu_handle_debug_exception(CPUState *env) |
167 | 1009d2ed | Jan Kiszka | { |
168 | 1009d2ed | Jan Kiszka | CPUWatchpoint *wp; |
169 | 1009d2ed | Jan Kiszka | |
170 | 1009d2ed | Jan Kiszka | if (!env->watchpoint_hit) {
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171 | 1009d2ed | Jan Kiszka | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
172 | 1009d2ed | Jan Kiszka | wp->flags &= ~BP_WATCHPOINT_HIT; |
173 | 1009d2ed | Jan Kiszka | } |
174 | 1009d2ed | Jan Kiszka | } |
175 | 1009d2ed | Jan Kiszka | if (debug_excp_handler) {
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176 | 1009d2ed | Jan Kiszka | debug_excp_handler(env); |
177 | 1009d2ed | Jan Kiszka | } |
178 | 1009d2ed | Jan Kiszka | } |
179 | 1009d2ed | Jan Kiszka | |
180 | 7d13299d | bellard | /* main execution loop */
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181 | 7d13299d | bellard | |
182 | 1a28cac3 | Marcelo Tosatti | volatile sig_atomic_t exit_request;
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183 | 1a28cac3 | Marcelo Tosatti | |
184 | cea5f9a2 | Blue Swirl | int cpu_exec(CPUState *env)
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185 | 7d13299d | bellard | { |
186 | 8a40a180 | bellard | int ret, interrupt_request;
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187 | 8a40a180 | bellard | TranslationBlock *tb; |
188 | c27004ec | bellard | uint8_t *tc_ptr; |
189 | d5975363 | pbrook | unsigned long next_tb; |
190 | 8c6939c0 | bellard | |
191 | cea5f9a2 | Blue Swirl | if (env->halted) {
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192 | cea5f9a2 | Blue Swirl | if (!cpu_has_work(env)) {
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193 | eda48c34 | Paolo Bonzini | return EXCP_HALTED;
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194 | eda48c34 | Paolo Bonzini | } |
195 | eda48c34 | Paolo Bonzini | |
196 | cea5f9a2 | Blue Swirl | env->halted = 0;
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197 | eda48c34 | Paolo Bonzini | } |
198 | 5a1e3cfc | bellard | |
199 | cea5f9a2 | Blue Swirl | cpu_single_env = env; |
200 | e4533c7a | bellard | |
201 | c629a4bc | Jan Kiszka | if (unlikely(exit_request)) {
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202 | 1a28cac3 | Marcelo Tosatti | env->exit_request = 1;
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203 | 1a28cac3 | Marcelo Tosatti | } |
204 | 1a28cac3 | Marcelo Tosatti | |
205 | ecb644f4 | ths | #if defined(TARGET_I386)
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206 | 6792a57b | Jan Kiszka | /* put eflags in CPU temporary format */
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207 | 6792a57b | Jan Kiszka | CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
208 | 6792a57b | Jan Kiszka | DF = 1 - (2 * ((env->eflags >> 10) & 1)); |
209 | 6792a57b | Jan Kiszka | CC_OP = CC_OP_EFLAGS; |
210 | 6792a57b | Jan Kiszka | env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
211 | 93ac68bc | bellard | #elif defined(TARGET_SPARC)
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212 | e6e5906b | pbrook | #elif defined(TARGET_M68K)
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213 | e6e5906b | pbrook | env->cc_op = CC_OP_FLAGS; |
214 | e6e5906b | pbrook | env->cc_dest = env->sr & 0xf;
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215 | e6e5906b | pbrook | env->cc_x = (env->sr >> 4) & 1; |
216 | ecb644f4 | ths | #elif defined(TARGET_ALPHA)
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217 | ecb644f4 | ths | #elif defined(TARGET_ARM)
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218 | d2fbca94 | Guan Xuetao | #elif defined(TARGET_UNICORE32)
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219 | ecb644f4 | ths | #elif defined(TARGET_PPC)
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220 | 81ea0e13 | Michael Walle | #elif defined(TARGET_LM32)
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221 | b779e29e | Edgar E. Iglesias | #elif defined(TARGET_MICROBLAZE)
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222 | 6af0bf9c | bellard | #elif defined(TARGET_MIPS)
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223 | fdf9b3e8 | bellard | #elif defined(TARGET_SH4)
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224 | f1ccf904 | ths | #elif defined(TARGET_CRIS)
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225 | 10ec5117 | Alexander Graf | #elif defined(TARGET_S390X)
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226 | 2328826b | Max Filippov | #elif defined(TARGET_XTENSA)
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227 | fdf9b3e8 | bellard | /* XXXXX */
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228 | e4533c7a | bellard | #else
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229 | e4533c7a | bellard | #error unsupported target CPU
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230 | e4533c7a | bellard | #endif
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231 | 3fb2ded1 | bellard | env->exception_index = -1;
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232 | 9d27abd9 | bellard | |
233 | 7d13299d | bellard | /* prepare setjmp context for exception handling */
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234 | 3fb2ded1 | bellard | for(;;) {
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235 | 3fb2ded1 | bellard | if (setjmp(env->jmp_env) == 0) { |
236 | 3fb2ded1 | bellard | /* if an exception is pending, we execute it here */
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237 | 3fb2ded1 | bellard | if (env->exception_index >= 0) { |
238 | 3fb2ded1 | bellard | if (env->exception_index >= EXCP_INTERRUPT) {
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239 | 3fb2ded1 | bellard | /* exit request from the cpu execution loop */
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240 | 3fb2ded1 | bellard | ret = env->exception_index; |
241 | 1009d2ed | Jan Kiszka | if (ret == EXCP_DEBUG) {
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242 | 1009d2ed | Jan Kiszka | cpu_handle_debug_exception(env); |
243 | 1009d2ed | Jan Kiszka | } |
244 | 3fb2ded1 | bellard | break;
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245 | 72d239ed | aurel32 | } else {
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246 | 72d239ed | aurel32 | #if defined(CONFIG_USER_ONLY)
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247 | 3fb2ded1 | bellard | /* if user mode only, we simulate a fake exception
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248 | 9f083493 | ths | which will be handled outside the cpu execution
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249 | 3fb2ded1 | bellard | loop */
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250 | 83479e77 | bellard | #if defined(TARGET_I386)
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251 | e694d4e2 | Blue Swirl | do_interrupt(env); |
252 | 83479e77 | bellard | #endif
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253 | 3fb2ded1 | bellard | ret = env->exception_index; |
254 | 3fb2ded1 | bellard | break;
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255 | 72d239ed | aurel32 | #else
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256 | b5ff1b31 | bellard | do_interrupt(env); |
257 | 301d2908 | Paolo Bonzini | env->exception_index = -1;
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258 | 72d239ed | aurel32 | #endif
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259 | 3fb2ded1 | bellard | } |
260 | 5fafdf24 | ths | } |
261 | 9df217a3 | bellard | |
262 | b5fc09ae | blueswir1 | next_tb = 0; /* force lookup of first TB */ |
263 | 3fb2ded1 | bellard | for(;;) {
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264 | 68a79315 | bellard | interrupt_request = env->interrupt_request; |
265 | e1638bd8 | malc | if (unlikely(interrupt_request)) {
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266 | e1638bd8 | malc | if (unlikely(env->singlestep_enabled & SSTEP_NOIRQ)) {
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267 | e1638bd8 | malc | /* Mask out external interrupts for this step. */
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268 | 3125f763 | Richard Henderson | interrupt_request &= ~CPU_INTERRUPT_SSTEP_MASK; |
269 | e1638bd8 | malc | } |
270 | 6658ffb8 | pbrook | if (interrupt_request & CPU_INTERRUPT_DEBUG) {
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271 | 6658ffb8 | pbrook | env->interrupt_request &= ~CPU_INTERRUPT_DEBUG; |
272 | 6658ffb8 | pbrook | env->exception_index = EXCP_DEBUG; |
273 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
274 | 6658ffb8 | pbrook | } |
275 | a90b7318 | balrog | #if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_MIPS) || \
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276 | b779e29e | Edgar E. Iglesias | defined(TARGET_PPC) || defined(TARGET_ALPHA) || defined(TARGET_CRIS) || \ |
277 | d2fbca94 | Guan Xuetao | defined(TARGET_MICROBLAZE) || defined(TARGET_LM32) || defined(TARGET_UNICORE32) |
278 | a90b7318 | balrog | if (interrupt_request & CPU_INTERRUPT_HALT) {
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279 | a90b7318 | balrog | env->interrupt_request &= ~CPU_INTERRUPT_HALT; |
280 | a90b7318 | balrog | env->halted = 1;
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281 | a90b7318 | balrog | env->exception_index = EXCP_HLT; |
282 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
283 | a90b7318 | balrog | } |
284 | a90b7318 | balrog | #endif
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285 | 68a79315 | bellard | #if defined(TARGET_I386)
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286 | b09ea7d5 | Gleb Natapov | if (interrupt_request & CPU_INTERRUPT_INIT) {
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287 | e694d4e2 | Blue Swirl | svm_check_intercept(env, SVM_EXIT_INIT); |
288 | b09ea7d5 | Gleb Natapov | do_cpu_init(env); |
289 | b09ea7d5 | Gleb Natapov | env->exception_index = EXCP_HALTED; |
290 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
291 | b09ea7d5 | Gleb Natapov | } else if (interrupt_request & CPU_INTERRUPT_SIPI) { |
292 | b09ea7d5 | Gleb Natapov | do_cpu_sipi(env); |
293 | b09ea7d5 | Gleb Natapov | } else if (env->hflags2 & HF2_GIF_MASK) { |
294 | db620f46 | bellard | if ((interrupt_request & CPU_INTERRUPT_SMI) &&
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295 | db620f46 | bellard | !(env->hflags & HF_SMM_MASK)) { |
296 | e694d4e2 | Blue Swirl | svm_check_intercept(env, SVM_EXIT_SMI); |
297 | db620f46 | bellard | env->interrupt_request &= ~CPU_INTERRUPT_SMI; |
298 | e694d4e2 | Blue Swirl | do_smm_enter(env); |
299 | db620f46 | bellard | next_tb = 0;
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300 | db620f46 | bellard | } else if ((interrupt_request & CPU_INTERRUPT_NMI) && |
301 | db620f46 | bellard | !(env->hflags2 & HF2_NMI_MASK)) { |
302 | db620f46 | bellard | env->interrupt_request &= ~CPU_INTERRUPT_NMI; |
303 | db620f46 | bellard | env->hflags2 |= HF2_NMI_MASK; |
304 | e694d4e2 | Blue Swirl | do_interrupt_x86_hardirq(env, EXCP02_NMI, 1);
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305 | db620f46 | bellard | next_tb = 0;
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306 | 79c4f6b0 | Huang Ying | } else if (interrupt_request & CPU_INTERRUPT_MCE) { |
307 | 79c4f6b0 | Huang Ying | env->interrupt_request &= ~CPU_INTERRUPT_MCE; |
308 | e694d4e2 | Blue Swirl | do_interrupt_x86_hardirq(env, EXCP12_MCHK, 0);
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309 | 79c4f6b0 | Huang Ying | next_tb = 0;
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310 | db620f46 | bellard | } else if ((interrupt_request & CPU_INTERRUPT_HARD) && |
311 | db620f46 | bellard | (((env->hflags2 & HF2_VINTR_MASK) && |
312 | db620f46 | bellard | (env->hflags2 & HF2_HIF_MASK)) || |
313 | db620f46 | bellard | (!(env->hflags2 & HF2_VINTR_MASK) && |
314 | db620f46 | bellard | (env->eflags & IF_MASK && |
315 | db620f46 | bellard | !(env->hflags & HF_INHIBIT_IRQ_MASK))))) { |
316 | db620f46 | bellard | int intno;
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317 | e694d4e2 | Blue Swirl | svm_check_intercept(env, SVM_EXIT_INTR); |
318 | db620f46 | bellard | env->interrupt_request &= ~(CPU_INTERRUPT_HARD | CPU_INTERRUPT_VIRQ); |
319 | db620f46 | bellard | intno = cpu_get_pic_interrupt(env); |
320 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing hardware INT=0x%02x\n", intno);
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321 | e694d4e2 | Blue Swirl | do_interrupt_x86_hardirq(env, intno, 1);
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322 | db620f46 | bellard | /* ensure that no TB jump will be modified as
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323 | db620f46 | bellard | the program flow was changed */
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324 | db620f46 | bellard | next_tb = 0;
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325 | 0573fbfc | ths | #if !defined(CONFIG_USER_ONLY)
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326 | db620f46 | bellard | } else if ((interrupt_request & CPU_INTERRUPT_VIRQ) && |
327 | db620f46 | bellard | (env->eflags & IF_MASK) && |
328 | db620f46 | bellard | !(env->hflags & HF_INHIBIT_IRQ_MASK)) { |
329 | db620f46 | bellard | int intno;
|
330 | db620f46 | bellard | /* FIXME: this should respect TPR */
|
331 | e694d4e2 | Blue Swirl | svm_check_intercept(env, SVM_EXIT_VINTR); |
332 | db620f46 | bellard | intno = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_vector));
|
333 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing virtual hardware INT=0x%02x\n", intno);
|
334 | e694d4e2 | Blue Swirl | do_interrupt_x86_hardirq(env, intno, 1);
|
335 | d40c54d6 | aurel32 | env->interrupt_request &= ~CPU_INTERRUPT_VIRQ; |
336 | db620f46 | bellard | next_tb = 0;
|
337 | 0573fbfc | ths | #endif
|
338 | db620f46 | bellard | } |
339 | 68a79315 | bellard | } |
340 | ce09776b | bellard | #elif defined(TARGET_PPC)
|
341 | 9fddaa0c | bellard | #if 0
|
342 | 9fddaa0c | bellard | if ((interrupt_request & CPU_INTERRUPT_RESET)) {
|
343 | d84bda46 | Blue Swirl | cpu_reset(env);
|
344 | 9fddaa0c | bellard | }
|
345 | 9fddaa0c | bellard | #endif
|
346 | 47103572 | j_mayer | if (interrupt_request & CPU_INTERRUPT_HARD) {
|
347 | e9df014c | j_mayer | ppc_hw_interrupt(env); |
348 | e9df014c | j_mayer | if (env->pending_interrupts == 0) |
349 | e9df014c | j_mayer | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
350 | b5fc09ae | blueswir1 | next_tb = 0;
|
351 | ce09776b | bellard | } |
352 | 81ea0e13 | Michael Walle | #elif defined(TARGET_LM32)
|
353 | 81ea0e13 | Michael Walle | if ((interrupt_request & CPU_INTERRUPT_HARD)
|
354 | 81ea0e13 | Michael Walle | && (env->ie & IE_IE)) { |
355 | 81ea0e13 | Michael Walle | env->exception_index = EXCP_IRQ; |
356 | 81ea0e13 | Michael Walle | do_interrupt(env); |
357 | 81ea0e13 | Michael Walle | next_tb = 0;
|
358 | 81ea0e13 | Michael Walle | } |
359 | b779e29e | Edgar E. Iglesias | #elif defined(TARGET_MICROBLAZE)
|
360 | b779e29e | Edgar E. Iglesias | if ((interrupt_request & CPU_INTERRUPT_HARD)
|
361 | b779e29e | Edgar E. Iglesias | && (env->sregs[SR_MSR] & MSR_IE) |
362 | b779e29e | Edgar E. Iglesias | && !(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP)) |
363 | b779e29e | Edgar E. Iglesias | && !(env->iflags & (D_FLAG | IMM_FLAG))) { |
364 | b779e29e | Edgar E. Iglesias | env->exception_index = EXCP_IRQ; |
365 | b779e29e | Edgar E. Iglesias | do_interrupt(env); |
366 | b779e29e | Edgar E. Iglesias | next_tb = 0;
|
367 | b779e29e | Edgar E. Iglesias | } |
368 | 6af0bf9c | bellard | #elif defined(TARGET_MIPS)
|
369 | 6af0bf9c | bellard | if ((interrupt_request & CPU_INTERRUPT_HARD) &&
|
370 | 4cdc1cd1 | Aurelien Jarno | cpu_mips_hw_interrupts_pending(env)) { |
371 | 6af0bf9c | bellard | /* Raise it */
|
372 | 6af0bf9c | bellard | env->exception_index = EXCP_EXT_INTERRUPT; |
373 | 6af0bf9c | bellard | env->error_code = 0;
|
374 | 6af0bf9c | bellard | do_interrupt(env); |
375 | b5fc09ae | blueswir1 | next_tb = 0;
|
376 | 6af0bf9c | bellard | } |
377 | e95c8d51 | bellard | #elif defined(TARGET_SPARC)
|
378 | d532b26c | Igor V. Kovalenko | if (interrupt_request & CPU_INTERRUPT_HARD) {
|
379 | d532b26c | Igor V. Kovalenko | if (cpu_interrupts_enabled(env) &&
|
380 | d532b26c | Igor V. Kovalenko | env->interrupt_index > 0) {
|
381 | d532b26c | Igor V. Kovalenko | int pil = env->interrupt_index & 0xf; |
382 | d532b26c | Igor V. Kovalenko | int type = env->interrupt_index & 0xf0; |
383 | d532b26c | Igor V. Kovalenko | |
384 | d532b26c | Igor V. Kovalenko | if (((type == TT_EXTINT) &&
|
385 | d532b26c | Igor V. Kovalenko | cpu_pil_allowed(env, pil)) || |
386 | d532b26c | Igor V. Kovalenko | type != TT_EXTINT) { |
387 | d532b26c | Igor V. Kovalenko | env->exception_index = env->interrupt_index; |
388 | d532b26c | Igor V. Kovalenko | do_interrupt(env); |
389 | d532b26c | Igor V. Kovalenko | next_tb = 0;
|
390 | d532b26c | Igor V. Kovalenko | } |
391 | d532b26c | Igor V. Kovalenko | } |
392 | a90b7318 | balrog | } |
393 | b5ff1b31 | bellard | #elif defined(TARGET_ARM)
|
394 | b5ff1b31 | bellard | if (interrupt_request & CPU_INTERRUPT_FIQ
|
395 | b5ff1b31 | bellard | && !(env->uncached_cpsr & CPSR_F)) { |
396 | b5ff1b31 | bellard | env->exception_index = EXCP_FIQ; |
397 | b5ff1b31 | bellard | do_interrupt(env); |
398 | b5fc09ae | blueswir1 | next_tb = 0;
|
399 | b5ff1b31 | bellard | } |
400 | 9ee6e8bb | pbrook | /* ARMv7-M interrupt return works by loading a magic value
|
401 | 9ee6e8bb | pbrook | into the PC. On real hardware the load causes the
|
402 | 9ee6e8bb | pbrook | return to occur. The qemu implementation performs the
|
403 | 9ee6e8bb | pbrook | jump normally, then does the exception return when the
|
404 | 9ee6e8bb | pbrook | CPU tries to execute code at the magic address.
|
405 | 9ee6e8bb | pbrook | This will cause the magic PC value to be pushed to
|
406 | a1c7273b | Stefan Weil | the stack if an interrupt occurred at the wrong time.
|
407 | 9ee6e8bb | pbrook | We avoid this by disabling interrupts when
|
408 | 9ee6e8bb | pbrook | pc contains a magic address. */
|
409 | b5ff1b31 | bellard | if (interrupt_request & CPU_INTERRUPT_HARD
|
410 | 9ee6e8bb | pbrook | && ((IS_M(env) && env->regs[15] < 0xfffffff0) |
411 | 9ee6e8bb | pbrook | || !(env->uncached_cpsr & CPSR_I))) { |
412 | b5ff1b31 | bellard | env->exception_index = EXCP_IRQ; |
413 | b5ff1b31 | bellard | do_interrupt(env); |
414 | b5fc09ae | blueswir1 | next_tb = 0;
|
415 | b5ff1b31 | bellard | } |
416 | d2fbca94 | Guan Xuetao | #elif defined(TARGET_UNICORE32)
|
417 | d2fbca94 | Guan Xuetao | if (interrupt_request & CPU_INTERRUPT_HARD
|
418 | d2fbca94 | Guan Xuetao | && !(env->uncached_asr & ASR_I)) { |
419 | d2fbca94 | Guan Xuetao | do_interrupt(env); |
420 | d2fbca94 | Guan Xuetao | next_tb = 0;
|
421 | d2fbca94 | Guan Xuetao | } |
422 | fdf9b3e8 | bellard | #elif defined(TARGET_SH4)
|
423 | e96e2044 | ths | if (interrupt_request & CPU_INTERRUPT_HARD) {
|
424 | e96e2044 | ths | do_interrupt(env); |
425 | b5fc09ae | blueswir1 | next_tb = 0;
|
426 | e96e2044 | ths | } |
427 | eddf68a6 | j_mayer | #elif defined(TARGET_ALPHA)
|
428 | 6a80e088 | Richard Henderson | { |
429 | 6a80e088 | Richard Henderson | int idx = -1; |
430 | 6a80e088 | Richard Henderson | /* ??? This hard-codes the OSF/1 interrupt levels. */
|
431 | 6a80e088 | Richard Henderson | switch (env->pal_mode ? 7 : env->ps & PS_INT_MASK) { |
432 | 6a80e088 | Richard Henderson | case 0 ... 3: |
433 | 6a80e088 | Richard Henderson | if (interrupt_request & CPU_INTERRUPT_HARD) {
|
434 | 6a80e088 | Richard Henderson | idx = EXCP_DEV_INTERRUPT; |
435 | 6a80e088 | Richard Henderson | } |
436 | 6a80e088 | Richard Henderson | /* FALLTHRU */
|
437 | 6a80e088 | Richard Henderson | case 4: |
438 | 6a80e088 | Richard Henderson | if (interrupt_request & CPU_INTERRUPT_TIMER) {
|
439 | 6a80e088 | Richard Henderson | idx = EXCP_CLK_INTERRUPT; |
440 | 6a80e088 | Richard Henderson | } |
441 | 6a80e088 | Richard Henderson | /* FALLTHRU */
|
442 | 6a80e088 | Richard Henderson | case 5: |
443 | 6a80e088 | Richard Henderson | if (interrupt_request & CPU_INTERRUPT_SMP) {
|
444 | 6a80e088 | Richard Henderson | idx = EXCP_SMP_INTERRUPT; |
445 | 6a80e088 | Richard Henderson | } |
446 | 6a80e088 | Richard Henderson | /* FALLTHRU */
|
447 | 6a80e088 | Richard Henderson | case 6: |
448 | 6a80e088 | Richard Henderson | if (interrupt_request & CPU_INTERRUPT_MCHK) {
|
449 | 6a80e088 | Richard Henderson | idx = EXCP_MCHK; |
450 | 6a80e088 | Richard Henderson | } |
451 | 6a80e088 | Richard Henderson | } |
452 | 6a80e088 | Richard Henderson | if (idx >= 0) { |
453 | 6a80e088 | Richard Henderson | env->exception_index = idx; |
454 | 6a80e088 | Richard Henderson | env->error_code = 0;
|
455 | 6a80e088 | Richard Henderson | do_interrupt(env); |
456 | 6a80e088 | Richard Henderson | next_tb = 0;
|
457 | 6a80e088 | Richard Henderson | } |
458 | eddf68a6 | j_mayer | } |
459 | f1ccf904 | ths | #elif defined(TARGET_CRIS)
|
460 | 1b1a38b0 | edgar_igl | if (interrupt_request & CPU_INTERRUPT_HARD
|
461 | fb9fb692 | Edgar E. Iglesias | && (env->pregs[PR_CCS] & I_FLAG) |
462 | fb9fb692 | Edgar E. Iglesias | && !env->locked_irq) { |
463 | 1b1a38b0 | edgar_igl | env->exception_index = EXCP_IRQ; |
464 | 1b1a38b0 | edgar_igl | do_interrupt(env); |
465 | 1b1a38b0 | edgar_igl | next_tb = 0;
|
466 | 1b1a38b0 | edgar_igl | } |
467 | 1b1a38b0 | edgar_igl | if (interrupt_request & CPU_INTERRUPT_NMI
|
468 | 1b1a38b0 | edgar_igl | && (env->pregs[PR_CCS] & M_FLAG)) { |
469 | 1b1a38b0 | edgar_igl | env->exception_index = EXCP_NMI; |
470 | f1ccf904 | ths | do_interrupt(env); |
471 | b5fc09ae | blueswir1 | next_tb = 0;
|
472 | f1ccf904 | ths | } |
473 | 0633879f | pbrook | #elif defined(TARGET_M68K)
|
474 | 0633879f | pbrook | if (interrupt_request & CPU_INTERRUPT_HARD
|
475 | 0633879f | pbrook | && ((env->sr & SR_I) >> SR_I_SHIFT) |
476 | 0633879f | pbrook | < env->pending_level) { |
477 | 0633879f | pbrook | /* Real hardware gets the interrupt vector via an
|
478 | 0633879f | pbrook | IACK cycle at this point. Current emulated
|
479 | 0633879f | pbrook | hardware doesn't rely on this, so we
|
480 | 0633879f | pbrook | provide/save the vector when the interrupt is
|
481 | 0633879f | pbrook | first signalled. */
|
482 | 0633879f | pbrook | env->exception_index = env->pending_vector; |
483 | 3c688828 | Blue Swirl | do_interrupt_m68k_hardirq(env); |
484 | b5fc09ae | blueswir1 | next_tb = 0;
|
485 | 0633879f | pbrook | } |
486 | 3110e292 | Alexander Graf | #elif defined(TARGET_S390X) && !defined(CONFIG_USER_ONLY)
|
487 | 3110e292 | Alexander Graf | if ((interrupt_request & CPU_INTERRUPT_HARD) &&
|
488 | 3110e292 | Alexander Graf | (env->psw.mask & PSW_MASK_EXT)) { |
489 | 3110e292 | Alexander Graf | do_interrupt(env); |
490 | 3110e292 | Alexander Graf | next_tb = 0;
|
491 | 3110e292 | Alexander Graf | } |
492 | 40643d7c | Max Filippov | #elif defined(TARGET_XTENSA)
|
493 | 40643d7c | Max Filippov | if (interrupt_request & CPU_INTERRUPT_HARD) {
|
494 | 40643d7c | Max Filippov | env->exception_index = EXC_IRQ; |
495 | 40643d7c | Max Filippov | do_interrupt(env); |
496 | 40643d7c | Max Filippov | next_tb = 0;
|
497 | 40643d7c | Max Filippov | } |
498 | 68a79315 | bellard | #endif
|
499 | ff2712ba | Stefan Weil | /* Don't use the cached interrupt_request value,
|
500 | 9d05095e | bellard | do_interrupt may have updated the EXITTB flag. */
|
501 | b5ff1b31 | bellard | if (env->interrupt_request & CPU_INTERRUPT_EXITTB) {
|
502 | bf3e8bf1 | bellard | env->interrupt_request &= ~CPU_INTERRUPT_EXITTB; |
503 | bf3e8bf1 | bellard | /* ensure that no TB jump will be modified as
|
504 | bf3e8bf1 | bellard | the program flow was changed */
|
505 | b5fc09ae | blueswir1 | next_tb = 0;
|
506 | bf3e8bf1 | bellard | } |
507 | be214e6c | aurel32 | } |
508 | be214e6c | aurel32 | if (unlikely(env->exit_request)) {
|
509 | be214e6c | aurel32 | env->exit_request = 0;
|
510 | be214e6c | aurel32 | env->exception_index = EXCP_INTERRUPT; |
511 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
512 | 3fb2ded1 | bellard | } |
513 | a73b1fd9 | Richard Henderson | #if defined(DEBUG_DISAS) || defined(CONFIG_DEBUG_EXEC)
|
514 | 8fec2b8c | aliguori | if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) {
|
515 | 3fb2ded1 | bellard | /* restore flags in standard format */
|
516 | ecb644f4 | ths | #if defined(TARGET_I386)
|
517 | e694d4e2 | Blue Swirl | env->eflags = env->eflags | cpu_cc_compute_all(env, CC_OP) |
518 | e694d4e2 | Blue Swirl | | (DF & DF_MASK); |
519 | 93fcfe39 | aliguori | log_cpu_state(env, X86_DUMP_CCOP); |
520 | 3fb2ded1 | bellard | env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
521 | e6e5906b | pbrook | #elif defined(TARGET_M68K)
|
522 | e6e5906b | pbrook | cpu_m68k_flush_flags(env, env->cc_op); |
523 | e6e5906b | pbrook | env->cc_op = CC_OP_FLAGS; |
524 | e6e5906b | pbrook | env->sr = (env->sr & 0xffe0)
|
525 | e6e5906b | pbrook | | env->cc_dest | (env->cc_x << 4);
|
526 | 93fcfe39 | aliguori | log_cpu_state(env, 0);
|
527 | e4533c7a | bellard | #else
|
528 | a73b1fd9 | Richard Henderson | log_cpu_state(env, 0);
|
529 | e4533c7a | bellard | #endif
|
530 | 3fb2ded1 | bellard | } |
531 | a73b1fd9 | Richard Henderson | #endif /* DEBUG_DISAS || CONFIG_DEBUG_EXEC */ |
532 | d5975363 | pbrook | spin_lock(&tb_lock); |
533 | cea5f9a2 | Blue Swirl | tb = tb_find_fast(env); |
534 | d5975363 | pbrook | /* Note: we do it here to avoid a gcc bug on Mac OS X when
|
535 | d5975363 | pbrook | doing it in tb_find_slow */
|
536 | d5975363 | pbrook | if (tb_invalidated_flag) {
|
537 | d5975363 | pbrook | /* as some TB could have been invalidated because
|
538 | d5975363 | pbrook | of memory exceptions while generating the code, we
|
539 | d5975363 | pbrook | must recompute the hash index here */
|
540 | d5975363 | pbrook | next_tb = 0;
|
541 | 2e70f6ef | pbrook | tb_invalidated_flag = 0;
|
542 | d5975363 | pbrook | } |
543 | f0667e66 | Juan Quintela | #ifdef CONFIG_DEBUG_EXEC
|
544 | 93fcfe39 | aliguori | qemu_log_mask(CPU_LOG_EXEC, "Trace 0x%08lx [" TARGET_FMT_lx "] %s\n", |
545 | 93fcfe39 | aliguori | (long)tb->tc_ptr, tb->pc,
|
546 | 93fcfe39 | aliguori | lookup_symbol(tb->pc)); |
547 | 9d27abd9 | bellard | #endif
|
548 | 8a40a180 | bellard | /* see if we can patch the calling TB. When the TB
|
549 | 8a40a180 | bellard | spans two pages, we cannot safely do a direct
|
550 | 8a40a180 | bellard | jump. */
|
551 | 040f2fb2 | Paolo Bonzini | if (next_tb != 0 && tb->page_addr[1] == -1) { |
552 | b5fc09ae | blueswir1 | tb_add_jump((TranslationBlock *)(next_tb & ~3), next_tb & 3, tb); |
553 | 3fb2ded1 | bellard | } |
554 | d5975363 | pbrook | spin_unlock(&tb_lock); |
555 | 55e8b85e | malc | |
556 | 55e8b85e | malc | /* cpu_interrupt might be called while translating the
|
557 | 55e8b85e | malc | TB, but before it is linked into a potentially
|
558 | 55e8b85e | malc | infinite loop and becomes env->current_tb. Avoid
|
559 | 55e8b85e | malc | starting execution if there is a pending interrupt. */
|
560 | b0052d15 | Jan Kiszka | env->current_tb = tb; |
561 | b0052d15 | Jan Kiszka | barrier(); |
562 | b0052d15 | Jan Kiszka | if (likely(!env->exit_request)) {
|
563 | 2e70f6ef | pbrook | tc_ptr = tb->tc_ptr; |
564 | 3fb2ded1 | bellard | /* execute the generated code */
|
565 | cea5f9a2 | Blue Swirl | next_tb = tcg_qemu_tb_exec(env, tc_ptr); |
566 | 2e70f6ef | pbrook | if ((next_tb & 3) == 2) { |
567 | bf20dc07 | ths | /* Instruction counter expired. */
|
568 | 2e70f6ef | pbrook | int insns_left;
|
569 | 2e70f6ef | pbrook | tb = (TranslationBlock *)(long)(next_tb & ~3); |
570 | 2e70f6ef | pbrook | /* Restore PC. */
|
571 | 622ed360 | aliguori | cpu_pc_from_tb(env, tb); |
572 | 2e70f6ef | pbrook | insns_left = env->icount_decr.u32; |
573 | 2e70f6ef | pbrook | if (env->icount_extra && insns_left >= 0) { |
574 | 2e70f6ef | pbrook | /* Refill decrementer and continue execution. */
|
575 | 2e70f6ef | pbrook | env->icount_extra += insns_left; |
576 | 2e70f6ef | pbrook | if (env->icount_extra > 0xffff) { |
577 | 2e70f6ef | pbrook | insns_left = 0xffff;
|
578 | 2e70f6ef | pbrook | } else {
|
579 | 2e70f6ef | pbrook | insns_left = env->icount_extra; |
580 | 2e70f6ef | pbrook | } |
581 | 2e70f6ef | pbrook | env->icount_extra -= insns_left; |
582 | 2e70f6ef | pbrook | env->icount_decr.u16.low = insns_left; |
583 | 2e70f6ef | pbrook | } else {
|
584 | 2e70f6ef | pbrook | if (insns_left > 0) { |
585 | 2e70f6ef | pbrook | /* Execute remaining instructions. */
|
586 | cea5f9a2 | Blue Swirl | cpu_exec_nocache(env, insns_left, tb); |
587 | 2e70f6ef | pbrook | } |
588 | 2e70f6ef | pbrook | env->exception_index = EXCP_INTERRUPT; |
589 | 2e70f6ef | pbrook | next_tb = 0;
|
590 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
591 | 2e70f6ef | pbrook | } |
592 | 2e70f6ef | pbrook | } |
593 | 2e70f6ef | pbrook | } |
594 | b0052d15 | Jan Kiszka | env->current_tb = NULL;
|
595 | 4cbf74b6 | bellard | /* reset soft MMU for next block (it can currently
|
596 | 4cbf74b6 | bellard | only be set by a memory fault) */
|
597 | 50a518e3 | ths | } /* for(;;) */
|
598 | 0d101938 | Jan Kiszka | } else {
|
599 | 0d101938 | Jan Kiszka | /* Reload env after longjmp - the compiler may have smashed all
|
600 | 0d101938 | Jan Kiszka | * local variables as longjmp is marked 'noreturn'. */
|
601 | 0d101938 | Jan Kiszka | env = cpu_single_env; |
602 | 7d13299d | bellard | } |
603 | 3fb2ded1 | bellard | } /* for(;;) */
|
604 | 3fb2ded1 | bellard | |
605 | 7d13299d | bellard | |
606 | e4533c7a | bellard | #if defined(TARGET_I386)
|
607 | 9de5e440 | bellard | /* restore flags in standard format */
|
608 | e694d4e2 | Blue Swirl | env->eflags = env->eflags | cpu_cc_compute_all(env, CC_OP) |
609 | e694d4e2 | Blue Swirl | | (DF & DF_MASK); |
610 | e4533c7a | bellard | #elif defined(TARGET_ARM)
|
611 | b7bcbe95 | bellard | /* XXX: Save/restore host fpu exception state?. */
|
612 | d2fbca94 | Guan Xuetao | #elif defined(TARGET_UNICORE32)
|
613 | 93ac68bc | bellard | #elif defined(TARGET_SPARC)
|
614 | 67867308 | bellard | #elif defined(TARGET_PPC)
|
615 | 81ea0e13 | Michael Walle | #elif defined(TARGET_LM32)
|
616 | e6e5906b | pbrook | #elif defined(TARGET_M68K)
|
617 | e6e5906b | pbrook | cpu_m68k_flush_flags(env, env->cc_op); |
618 | e6e5906b | pbrook | env->cc_op = CC_OP_FLAGS; |
619 | e6e5906b | pbrook | env->sr = (env->sr & 0xffe0)
|
620 | e6e5906b | pbrook | | env->cc_dest | (env->cc_x << 4);
|
621 | b779e29e | Edgar E. Iglesias | #elif defined(TARGET_MICROBLAZE)
|
622 | 6af0bf9c | bellard | #elif defined(TARGET_MIPS)
|
623 | fdf9b3e8 | bellard | #elif defined(TARGET_SH4)
|
624 | eddf68a6 | j_mayer | #elif defined(TARGET_ALPHA)
|
625 | f1ccf904 | ths | #elif defined(TARGET_CRIS)
|
626 | 10ec5117 | Alexander Graf | #elif defined(TARGET_S390X)
|
627 | 2328826b | Max Filippov | #elif defined(TARGET_XTENSA)
|
628 | fdf9b3e8 | bellard | /* XXXXX */
|
629 | e4533c7a | bellard | #else
|
630 | e4533c7a | bellard | #error unsupported target CPU
|
631 | e4533c7a | bellard | #endif
|
632 | 1057eaa7 | pbrook | |
633 | 6a00d601 | bellard | /* fail safe : never use cpu_single_env outside cpu_exec() */
|
634 | 5fafdf24 | ths | cpu_single_env = NULL;
|
635 | 7d13299d | bellard | return ret;
|
636 | 7d13299d | bellard | } |