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1 | d4e8164f | bellard | /*
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2 | d4e8164f | bellard | * internal execution defines for qemu
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3 | 5fafdf24 | ths | *
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4 | d4e8164f | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | d4e8164f | bellard | *
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6 | d4e8164f | bellard | * This library is free software; you can redistribute it and/or
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7 | d4e8164f | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | d4e8164f | bellard | * License as published by the Free Software Foundation; either
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9 | d4e8164f | bellard | * version 2 of the License, or (at your option) any later version.
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10 | d4e8164f | bellard | *
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11 | d4e8164f | bellard | * This library is distributed in the hope that it will be useful,
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12 | d4e8164f | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | d4e8164f | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | d4e8164f | bellard | * Lesser General Public License for more details.
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15 | d4e8164f | bellard | *
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16 | d4e8164f | 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 | d4e8164f | bellard | */
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19 | d4e8164f | bellard | |
20 | 875cdcf6 | aliguori | #ifndef _EXEC_ALL_H_
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21 | 875cdcf6 | aliguori | #define _EXEC_ALL_H_
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22 | 7d99a001 | blueswir1 | |
23 | 7d99a001 | blueswir1 | #include "qemu-common.h" |
24 | 7d99a001 | blueswir1 | |
25 | b346ff46 | bellard | /* allow to see translation results - the slowdown should be negligible, so we leave it */
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26 | de9a95f0 | aurel32 | #define DEBUG_DISAS
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27 | b346ff46 | bellard | |
28 | b346ff46 | bellard | /* is_jmp field values */
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29 | b346ff46 | bellard | #define DISAS_NEXT 0 /* next instruction can be analyzed */ |
30 | b346ff46 | bellard | #define DISAS_JUMP 1 /* only pc was modified dynamically */ |
31 | b346ff46 | bellard | #define DISAS_UPDATE 2 /* cpu state was modified dynamically */ |
32 | b346ff46 | bellard | #define DISAS_TB_JUMP 3 /* only pc was modified statically */ |
33 | b346ff46 | bellard | |
34 | 2e70f6ef | pbrook | typedef struct TranslationBlock TranslationBlock; |
35 | b346ff46 | bellard | |
36 | b346ff46 | bellard | /* XXX: make safe guess about sizes */
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37 | b689c622 | Aurelien Jarno | #define MAX_OP_PER_INSTR 96 |
38 | 0115be31 | pbrook | /* A Call op needs up to 6 + 2N parameters (N = number of arguments). */
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39 | 0115be31 | pbrook | #define MAX_OPC_PARAM 10 |
40 | 6db73509 | Aurelien Jarno | #define OPC_BUF_SIZE 640 |
41 | b346ff46 | bellard | #define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
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42 | b346ff46 | bellard | |
43 | a208e54a | pbrook | /* Maximum size a TCG op can expand to. This is complicated because a
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44 | 0cbfcd2b | Aurelien Jarno | single op may require several host instructions and register reloads.
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45 | 0cbfcd2b | Aurelien Jarno | For now take a wild guess at 192 bytes, which should allow at least
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46 | a208e54a | pbrook | a couple of fixup instructions per argument. */
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47 | 0cbfcd2b | Aurelien Jarno | #define TCG_MAX_OP_SIZE 192 |
48 | a208e54a | pbrook | |
49 | 0115be31 | pbrook | #define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM)
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50 | b346ff46 | bellard | |
51 | c27004ec | bellard | extern target_ulong gen_opc_pc[OPC_BUF_SIZE];
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52 | c27004ec | bellard | extern target_ulong gen_opc_npc[OPC_BUF_SIZE];
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53 | 66e85a21 | bellard | extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
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54 | b346ff46 | bellard | extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
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55 | 2e70f6ef | pbrook | extern uint16_t gen_opc_icount[OPC_BUF_SIZE];
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56 | c3278b7b | bellard | extern target_ulong gen_opc_jump_pc[2]; |
57 | 30d6cb84 | bellard | extern uint32_t gen_opc_hflags[OPC_BUF_SIZE];
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58 | b346ff46 | bellard | |
59 | 79383c9c | blueswir1 | #include "qemu-log.h" |
60 | b346ff46 | bellard | |
61 | 2cfc5f17 | ths | void gen_intermediate_code(CPUState *env, struct TranslationBlock *tb); |
62 | 2cfc5f17 | ths | void gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb); |
63 | d2856f1a | aurel32 | void gen_pc_load(CPUState *env, struct TranslationBlock *tb, |
64 | d2856f1a | aurel32 | unsigned long searched_pc, int pc_pos, void *puc); |
65 | d2856f1a | aurel32 | |
66 | d07bde88 | blueswir1 | unsigned long code_gen_max_block_size(void); |
67 | 57fec1fe | bellard | void cpu_gen_init(void); |
68 | 4c3a88a2 | bellard | int cpu_gen_code(CPUState *env, struct TranslationBlock *tb, |
69 | d07bde88 | blueswir1 | int *gen_code_size_ptr);
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70 | 5fafdf24 | ths | int cpu_restore_state(struct TranslationBlock *tb, |
71 | 58fe2f10 | bellard | CPUState *env, unsigned long searched_pc, |
72 | 58fe2f10 | bellard | void *puc);
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73 | 5fafdf24 | ths | int cpu_restore_state_copy(struct TranslationBlock *tb, |
74 | 58fe2f10 | bellard | CPUState *env, unsigned long searched_pc, |
75 | 58fe2f10 | bellard | void *puc);
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76 | 2e12669a | bellard | void cpu_resume_from_signal(CPUState *env1, void *puc); |
77 | 2e70f6ef | pbrook | void cpu_io_recompile(CPUState *env, void *retaddr); |
78 | 2e70f6ef | pbrook | TranslationBlock *tb_gen_code(CPUState *env, |
79 | 2e70f6ef | pbrook | target_ulong pc, target_ulong cs_base, int flags,
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80 | 2e70f6ef | pbrook | int cflags);
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81 | 6a00d601 | bellard | void cpu_exec_init(CPUState *env);
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82 | a5e50b26 | malc | void QEMU_NORETURN cpu_loop_exit(void); |
83 | 53a5960a | pbrook | int page_unprotect(target_ulong address, unsigned long pc, void *puc); |
84 | c227f099 | Anthony Liguori | void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end,
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85 | 2e12669a | bellard | int is_cpu_write_access);
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86 | 4390df51 | bellard | void tb_invalidate_page_range(target_ulong start, target_ulong end);
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87 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr);
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88 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global); |
89 | 5fafdf24 | ths | int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
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90 | c227f099 | Anthony Liguori | target_phys_addr_t paddr, int prot,
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91 | 6ebbf390 | j_mayer | int mmu_idx, int is_softmmu); |
92 | 4d7a0880 | blueswir1 | static inline int tlb_set_page(CPUState *env1, target_ulong vaddr, |
93 | c227f099 | Anthony Liguori | target_phys_addr_t paddr, int prot,
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94 | 6ebbf390 | j_mayer | int mmu_idx, int is_softmmu) |
95 | 84b7b8e7 | bellard | { |
96 | 84b7b8e7 | bellard | if (prot & PAGE_READ)
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97 | 84b7b8e7 | bellard | prot |= PAGE_EXEC; |
98 | 4d7a0880 | blueswir1 | return tlb_set_page_exec(env1, vaddr, paddr, prot, mmu_idx, is_softmmu);
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99 | 84b7b8e7 | bellard | } |
100 | d4e8164f | bellard | |
101 | d4e8164f | bellard | #define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */ |
102 | d4e8164f | bellard | |
103 | 4390df51 | bellard | #define CODE_GEN_PHYS_HASH_BITS 15 |
104 | 4390df51 | bellard | #define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS) |
105 | 4390df51 | bellard | |
106 | 26a5f13b | bellard | #define MIN_CODE_GEN_BUFFER_SIZE (1024 * 1024) |
107 | d4e8164f | bellard | |
108 | 4390df51 | bellard | /* estimated block size for TB allocation */
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109 | 4390df51 | bellard | /* XXX: use a per code average code fragment size and modulate it
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110 | 4390df51 | bellard | according to the host CPU */
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111 | 4390df51 | bellard | #if defined(CONFIG_SOFTMMU)
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112 | 4390df51 | bellard | #define CODE_GEN_AVG_BLOCK_SIZE 128 |
113 | 4390df51 | bellard | #else
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114 | 4390df51 | bellard | #define CODE_GEN_AVG_BLOCK_SIZE 64 |
115 | 4390df51 | bellard | #endif
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116 | 4390df51 | bellard | |
117 | a8cd70fc | Filip Navara | #if defined(_ARCH_PPC) || defined(__x86_64__) || defined(__arm__) || defined(__i386__)
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118 | d4e8164f | bellard | #define USE_DIRECT_JUMP
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119 | d4e8164f | bellard | #endif
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120 | d4e8164f | bellard | |
121 | 2e70f6ef | pbrook | struct TranslationBlock {
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122 | 2e12669a | bellard | target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */
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123 | 2e12669a | bellard | target_ulong cs_base; /* CS base for this block */
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124 | c068688b | j_mayer | uint64_t flags; /* flags defining in which context the code was generated */
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125 | d4e8164f | bellard | uint16_t size; /* size of target code for this block (1 <=
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126 | d4e8164f | bellard | size <= TARGET_PAGE_SIZE) */
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127 | 58fe2f10 | bellard | uint16_t cflags; /* compile flags */
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128 | 2e70f6ef | pbrook | #define CF_COUNT_MASK 0x7fff |
129 | 2e70f6ef | pbrook | #define CF_LAST_IO 0x8000 /* Last insn may be an IO access. */ |
130 | 58fe2f10 | bellard | |
131 | d4e8164f | bellard | uint8_t *tc_ptr; /* pointer to the translated code */
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132 | 4390df51 | bellard | /* next matching tb for physical address. */
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133 | 5fafdf24 | ths | struct TranslationBlock *phys_hash_next;
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134 | 4390df51 | bellard | /* first and second physical page containing code. The lower bit
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135 | 4390df51 | bellard | of the pointer tells the index in page_next[] */
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136 | 5fafdf24 | ths | struct TranslationBlock *page_next[2]; |
137 | 5fafdf24 | ths | target_ulong page_addr[2];
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138 | 4390df51 | bellard | |
139 | d4e8164f | bellard | /* the following data are used to directly call another TB from
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140 | d4e8164f | bellard | the code of this one. */
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141 | d4e8164f | bellard | uint16_t tb_next_offset[2]; /* offset of original jump target */ |
142 | d4e8164f | bellard | #ifdef USE_DIRECT_JUMP
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143 | 4cbb86e1 | bellard | uint16_t tb_jmp_offset[4]; /* offset of jump instruction */ |
144 | d4e8164f | bellard | #else
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145 | 57fec1fe | bellard | unsigned long tb_next[2]; /* address of jump generated code */ |
146 | d4e8164f | bellard | #endif
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147 | d4e8164f | bellard | /* list of TBs jumping to this one. This is a circular list using
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148 | d4e8164f | bellard | the two least significant bits of the pointers to tell what is
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149 | d4e8164f | bellard | the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
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150 | d4e8164f | bellard | jmp_first */
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151 | 5fafdf24 | ths | struct TranslationBlock *jmp_next[2]; |
152 | d4e8164f | bellard | struct TranslationBlock *jmp_first;
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153 | 2e70f6ef | pbrook | uint32_t icount; |
154 | 2e70f6ef | pbrook | }; |
155 | d4e8164f | bellard | |
156 | b362e5e0 | pbrook | static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc) |
157 | b362e5e0 | pbrook | { |
158 | b362e5e0 | pbrook | target_ulong tmp; |
159 | b362e5e0 | pbrook | tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)); |
160 | b5e19d4c | edgar_igl | return (tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK;
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161 | b362e5e0 | pbrook | } |
162 | b362e5e0 | pbrook | |
163 | 8a40a180 | bellard | static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc) |
164 | d4e8164f | bellard | { |
165 | b362e5e0 | pbrook | target_ulong tmp; |
166 | b362e5e0 | pbrook | tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)); |
167 | b5e19d4c | edgar_igl | return (((tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK)
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168 | b5e19d4c | edgar_igl | | (tmp & TB_JMP_ADDR_MASK)); |
169 | d4e8164f | bellard | } |
170 | d4e8164f | bellard | |
171 | 4390df51 | bellard | static inline unsigned int tb_phys_hash_func(unsigned long pc) |
172 | 4390df51 | bellard | { |
173 | 4390df51 | bellard | return pc & (CODE_GEN_PHYS_HASH_SIZE - 1); |
174 | 4390df51 | bellard | } |
175 | 4390df51 | bellard | |
176 | c27004ec | bellard | TranslationBlock *tb_alloc(target_ulong pc); |
177 | 2e70f6ef | pbrook | void tb_free(TranslationBlock *tb);
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178 | 0124311e | bellard | void tb_flush(CPUState *env);
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179 | 5fafdf24 | ths | void tb_link_phys(TranslationBlock *tb,
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180 | 4390df51 | bellard | target_ulong phys_pc, target_ulong phys_page2); |
181 | 2e70f6ef | pbrook | void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr);
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182 | d4e8164f | bellard | |
183 | 4390df51 | bellard | extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE];
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184 | d4e8164f | bellard | extern uint8_t *code_gen_ptr;
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185 | 26a5f13b | bellard | extern int code_gen_max_blocks; |
186 | d4e8164f | bellard | |
187 | 4390df51 | bellard | #if defined(USE_DIRECT_JUMP)
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188 | 4390df51 | bellard | |
189 | e58ffeb3 | malc | #if defined(_ARCH_PPC)
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190 | 810260a8 | malc | extern void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr); |
191 | 810260a8 | malc | #define tb_set_jmp_target1 ppc_tb_set_jmp_target
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192 | 57fec1fe | bellard | #elif defined(__i386__) || defined(__x86_64__)
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193 | 4390df51 | bellard | static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
194 | 4390df51 | bellard | { |
195 | 4390df51 | bellard | /* patch the branch destination */
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196 | 4390df51 | bellard | *(uint32_t *)jmp_addr = addr - (jmp_addr + 4);
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197 | 1235fc06 | ths | /* no need to flush icache explicitly */
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198 | 4390df51 | bellard | } |
199 | 811d4cf4 | balrog | #elif defined(__arm__)
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200 | 811d4cf4 | balrog | static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
201 | 811d4cf4 | balrog | { |
202 | 3233f0d4 | balrog | #if QEMU_GNUC_PREREQ(4, 1) |
203 | 3233f0d4 | balrog | void __clear_cache(char *beg, char *end); |
204 | 3233f0d4 | balrog | #else
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205 | 811d4cf4 | balrog | register unsigned long _beg __asm ("a1"); |
206 | 811d4cf4 | balrog | register unsigned long _end __asm ("a2"); |
207 | 811d4cf4 | balrog | register unsigned long _flg __asm ("a3"); |
208 | 3233f0d4 | balrog | #endif
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209 | 811d4cf4 | balrog | |
210 | 811d4cf4 | balrog | /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */
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211 | 87b78ad1 | Laurent Desnogues | *(uint32_t *)jmp_addr = |
212 | 87b78ad1 | Laurent Desnogues | (*(uint32_t *)jmp_addr & ~0xffffff)
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213 | 87b78ad1 | Laurent Desnogues | | (((addr - (jmp_addr + 8)) >> 2) & 0xffffff); |
214 | 811d4cf4 | balrog | |
215 | 3233f0d4 | balrog | #if QEMU_GNUC_PREREQ(4, 1) |
216 | 3233f0d4 | balrog | __clear_cache((char *) jmp_addr, (char *) jmp_addr + 4); |
217 | 3233f0d4 | balrog | #else
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218 | 811d4cf4 | balrog | /* flush icache */
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219 | 811d4cf4 | balrog | _beg = jmp_addr; |
220 | 811d4cf4 | balrog | _end = jmp_addr + 4;
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221 | 811d4cf4 | balrog | _flg = 0;
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222 | 811d4cf4 | balrog | __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg)); |
223 | 3233f0d4 | balrog | #endif
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224 | 811d4cf4 | balrog | } |
225 | 4390df51 | bellard | #endif
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226 | d4e8164f | bellard | |
227 | 5fafdf24 | ths | static inline void tb_set_jmp_target(TranslationBlock *tb, |
228 | 4cbb86e1 | bellard | int n, unsigned long addr) |
229 | 4cbb86e1 | bellard | { |
230 | 4cbb86e1 | bellard | unsigned long offset; |
231 | 4cbb86e1 | bellard | |
232 | 4cbb86e1 | bellard | offset = tb->tb_jmp_offset[n]; |
233 | 4cbb86e1 | bellard | tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr); |
234 | 4cbb86e1 | bellard | offset = tb->tb_jmp_offset[n + 2];
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235 | 4cbb86e1 | bellard | if (offset != 0xffff) |
236 | 4cbb86e1 | bellard | tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr); |
237 | 4cbb86e1 | bellard | } |
238 | 4cbb86e1 | bellard | |
239 | d4e8164f | bellard | #else
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240 | d4e8164f | bellard | |
241 | d4e8164f | bellard | /* set the jump target */
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242 | 5fafdf24 | ths | static inline void tb_set_jmp_target(TranslationBlock *tb, |
243 | d4e8164f | bellard | int n, unsigned long addr) |
244 | d4e8164f | bellard | { |
245 | 95f7652d | bellard | tb->tb_next[n] = addr; |
246 | d4e8164f | bellard | } |
247 | d4e8164f | bellard | |
248 | d4e8164f | bellard | #endif
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249 | d4e8164f | bellard | |
250 | 5fafdf24 | ths | static inline void tb_add_jump(TranslationBlock *tb, int n, |
251 | d4e8164f | bellard | TranslationBlock *tb_next) |
252 | d4e8164f | bellard | { |
253 | cf25629d | bellard | /* NOTE: this test is only needed for thread safety */
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254 | cf25629d | bellard | if (!tb->jmp_next[n]) {
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255 | cf25629d | bellard | /* patch the native jump address */
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256 | cf25629d | bellard | tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr); |
257 | 3b46e624 | ths | |
258 | cf25629d | bellard | /* add in TB jmp circular list */
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259 | cf25629d | bellard | tb->jmp_next[n] = tb_next->jmp_first; |
260 | cf25629d | bellard | tb_next->jmp_first = (TranslationBlock *)((long)(tb) | (n));
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261 | cf25629d | bellard | } |
262 | d4e8164f | bellard | } |
263 | d4e8164f | bellard | |
264 | a513fe19 | bellard | TranslationBlock *tb_find_pc(unsigned long pc_ptr); |
265 | a513fe19 | bellard | |
266 | 33417e70 | bellard | extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
267 | 33417e70 | bellard | extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; |
268 | a4193c8a | bellard | extern void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
269 | 33417e70 | bellard | |
270 | d5975363 | pbrook | #include "qemu-lock.h" |
271 | d4e8164f | bellard | |
272 | c227f099 | Anthony Liguori | extern spinlock_t tb_lock;
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273 | d4e8164f | bellard | |
274 | 36bdbe54 | bellard | extern int tb_invalidated_flag; |
275 | 6e59c1db | bellard | |
276 | e95c8d51 | bellard | #if !defined(CONFIG_USER_ONLY)
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277 | 6e59c1db | bellard | |
278 | 6ebbf390 | j_mayer | void tlb_fill(target_ulong addr, int is_write, int mmu_idx, |
279 | 6e59c1db | bellard | void *retaddr);
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280 | 6e59c1db | bellard | |
281 | 79383c9c | blueswir1 | #include "softmmu_defs.h" |
282 | 79383c9c | blueswir1 | |
283 | 6ebbf390 | j_mayer | #define ACCESS_TYPE (NB_MMU_MODES + 1) |
284 | 6e59c1db | bellard | #define MEMSUFFIX _code
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285 | 6e59c1db | bellard | #define env cpu_single_env
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286 | 6e59c1db | bellard | |
287 | 6e59c1db | bellard | #define DATA_SIZE 1 |
288 | 6e59c1db | bellard | #include "softmmu_header.h" |
289 | 6e59c1db | bellard | |
290 | 6e59c1db | bellard | #define DATA_SIZE 2 |
291 | 6e59c1db | bellard | #include "softmmu_header.h" |
292 | 6e59c1db | bellard | |
293 | 6e59c1db | bellard | #define DATA_SIZE 4 |
294 | 6e59c1db | bellard | #include "softmmu_header.h" |
295 | 6e59c1db | bellard | |
296 | c27004ec | bellard | #define DATA_SIZE 8 |
297 | c27004ec | bellard | #include "softmmu_header.h" |
298 | c27004ec | bellard | |
299 | 6e59c1db | bellard | #undef ACCESS_TYPE
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300 | 6e59c1db | bellard | #undef MEMSUFFIX
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301 | 6e59c1db | bellard | #undef env
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302 | 6e59c1db | bellard | |
303 | 6e59c1db | bellard | #endif
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304 | 4390df51 | bellard | |
305 | 4390df51 | bellard | #if defined(CONFIG_USER_ONLY)
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306 | 4d7a0880 | blueswir1 | static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr) |
307 | 4390df51 | bellard | { |
308 | 4390df51 | bellard | return addr;
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309 | 4390df51 | bellard | } |
310 | 4390df51 | bellard | #else
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311 | 4390df51 | bellard | /* NOTE: this function can trigger an exception */
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312 | 1ccde1cb | bellard | /* NOTE2: the returned address is not exactly the physical address: it
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313 | 1ccde1cb | bellard | is the offset relative to phys_ram_base */
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314 | 4d7a0880 | blueswir1 | static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr) |
315 | 4390df51 | bellard | { |
316 | 4d7a0880 | blueswir1 | int mmu_idx, page_index, pd;
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317 | 5579c7f3 | pbrook | void *p;
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318 | 4390df51 | bellard | |
319 | 4d7a0880 | blueswir1 | page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
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320 | 4d7a0880 | blueswir1 | mmu_idx = cpu_mmu_index(env1); |
321 | 551bd27f | ths | if (unlikely(env1->tlb_table[mmu_idx][page_index].addr_code !=
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322 | 551bd27f | ths | (addr & TARGET_PAGE_MASK))) { |
323 | c27004ec | bellard | ldub_code(addr); |
324 | c27004ec | bellard | } |
325 | 4d7a0880 | blueswir1 | pd = env1->tlb_table[mmu_idx][page_index].addr_code & ~TARGET_PAGE_MASK; |
326 | 2a4188a3 | bellard | if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
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327 | 647de6ca | ths | #if defined(TARGET_SPARC) || defined(TARGET_MIPS)
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328 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 1, 0, 4); |
329 | 6c36d3fa | blueswir1 | #else
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330 | 4d7a0880 | blueswir1 | cpu_abort(env1, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr); |
331 | 6c36d3fa | blueswir1 | #endif
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332 | 4390df51 | bellard | } |
333 | 5579c7f3 | pbrook | p = (void *)(unsigned long)addr |
334 | 5579c7f3 | pbrook | + env1->tlb_table[mmu_idx][page_index].addend; |
335 | 5579c7f3 | pbrook | return qemu_ram_addr_from_host(p);
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336 | 4390df51 | bellard | } |
337 | 2e70f6ef | pbrook | |
338 | bf20dc07 | ths | /* Deterministic execution requires that IO only be performed on the last
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339 | 2e70f6ef | pbrook | instruction of a TB so that interrupts take effect immediately. */
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340 | 2e70f6ef | pbrook | static inline int can_do_io(CPUState *env) |
341 | 2e70f6ef | pbrook | { |
342 | 2e70f6ef | pbrook | if (!use_icount)
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343 | 2e70f6ef | pbrook | return 1; |
344 | 2e70f6ef | pbrook | |
345 | 2e70f6ef | pbrook | /* If not executing code then assume we are ok. */
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346 | 2e70f6ef | pbrook | if (!env->current_tb)
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347 | 2e70f6ef | pbrook | return 1; |
348 | 2e70f6ef | pbrook | |
349 | 2e70f6ef | pbrook | return env->can_do_io != 0; |
350 | 2e70f6ef | pbrook | } |
351 | 4390df51 | bellard | #endif
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352 | 9df217a3 | bellard | |
353 | dde2367e | aliguori | typedef void (CPUDebugExcpHandler)(CPUState *env); |
354 | dde2367e | aliguori | |
355 | dde2367e | aliguori | CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler); |
356 | 1b530a6d | aurel32 | |
357 | 1b530a6d | aurel32 | /* vl.c */
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358 | 1b530a6d | aurel32 | extern int singlestep; |
359 | 1b530a6d | aurel32 | |
360 | 875cdcf6 | aliguori | #endif |