The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * internal execution defines for qemu |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 18 | */ |
| 19 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 20 | #ifndef _EXEC_ALL_H_ |
| 21 | #define _EXEC_ALL_H_ |
| 22 | |
| 23 | #include "qemu-common.h" |
| 24 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 25 | /* allow to see translation results - the slowdown should be negligible, so we leave it */ |
| 26 | #define DEBUG_DISAS |
| 27 | |
| 28 | /* is_jmp field values */ |
| 29 | #define DISAS_NEXT 0 /* next instruction can be analyzed */ |
| 30 | #define DISAS_JUMP 1 /* only pc was modified dynamically */ |
| 31 | #define DISAS_UPDATE 2 /* cpu state was modified dynamically */ |
| 32 | #define DISAS_TB_JUMP 3 /* only pc was modified statically */ |
| 33 | |
| 34 | typedef struct TranslationBlock TranslationBlock; |
| 35 | |
| 36 | /* XXX: make safe guess about sizes */ |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 37 | #define MAX_OP_PER_INSTR 96 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 38 | /* A Call op needs up to 6 + 2N parameters (N = number of arguments). */ |
| 39 | #define MAX_OPC_PARAM 10 |
David 'Digit' Turner | bcc6ae1 | 2009-10-06 11:18:29 -0700 | [diff] [blame] | 40 | #define OPC_BUF_SIZE 2048 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 41 | #define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR) |
| 42 | |
| 43 | /* Maximum size a TCG op can expand to. This is complicated because a |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 44 | single op may require several host instructions and register reloads. |
| 45 | For now take a wild guess at 192 bytes, which should allow at least |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 46 | a couple of fixup instructions per argument. */ |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 47 | #define TCG_MAX_OP_SIZE 192 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 48 | |
| 49 | #define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM) |
| 50 | |
| 51 | extern target_ulong gen_opc_pc[OPC_BUF_SIZE]; |
| 52 | extern target_ulong gen_opc_npc[OPC_BUF_SIZE]; |
| 53 | extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE]; |
| 54 | extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE]; |
| 55 | extern uint16_t gen_opc_icount[OPC_BUF_SIZE]; |
| 56 | extern target_ulong gen_opc_jump_pc[2]; |
| 57 | extern uint32_t gen_opc_hflags[OPC_BUF_SIZE]; |
| 58 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 59 | #include "qemu-log.h" |
| 60 | |
| 61 | void gen_intermediate_code(CPUState *env, struct TranslationBlock *tb); |
| 62 | void gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb); |
| 63 | void gen_pc_load(CPUState *env, struct TranslationBlock *tb, |
| 64 | unsigned long searched_pc, int pc_pos, void *puc); |
| 65 | |
| 66 | unsigned long code_gen_max_block_size(void); |
| 67 | void cpu_gen_init(void); |
| 68 | int cpu_gen_code(CPUState *env, struct TranslationBlock *tb, |
| 69 | int *gen_code_size_ptr); |
| 70 | int cpu_restore_state(struct TranslationBlock *tb, |
| 71 | CPUState *env, unsigned long searched_pc, |
| 72 | void *puc); |
| 73 | int cpu_restore_state_copy(struct TranslationBlock *tb, |
| 74 | CPUState *env, unsigned long searched_pc, |
| 75 | void *puc); |
| 76 | void cpu_resume_from_signal(CPUState *env1, void *puc); |
| 77 | void cpu_io_recompile(CPUState *env, void *retaddr); |
Vladimir Chtchetkine | 5389aa1 | 2010-02-16 10:38:35 -0800 | [diff] [blame] | 78 | TranslationBlock *tb_gen_code(CPUState *env, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 79 | target_ulong pc, target_ulong cs_base, int flags, |
| 80 | int cflags); |
| 81 | void cpu_exec_init(CPUState *env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 82 | void QEMU_NORETURN cpu_loop_exit(void); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 83 | int page_unprotect(target_ulong address, unsigned long pc, void *puc); |
| 84 | void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end, |
| 85 | int is_cpu_write_access); |
| 86 | void tb_invalidate_page_range(target_ulong start, target_ulong end); |
| 87 | void tlb_flush_page(CPUState *env, target_ulong addr); |
| 88 | void tlb_flush(CPUState *env, int flush_global); |
| 89 | int tlb_set_page_exec(CPUState *env, target_ulong vaddr, |
| 90 | target_phys_addr_t paddr, int prot, |
| 91 | int mmu_idx, int is_softmmu); |
| 92 | static inline int tlb_set_page(CPUState *env1, target_ulong vaddr, |
| 93 | target_phys_addr_t paddr, int prot, |
| 94 | int mmu_idx, int is_softmmu) |
| 95 | { |
| 96 | if (prot & PAGE_READ) |
| 97 | prot |= PAGE_EXEC; |
| 98 | return tlb_set_page_exec(env1, vaddr, paddr, prot, mmu_idx, is_softmmu); |
| 99 | } |
| 100 | |
| 101 | #define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */ |
| 102 | |
| 103 | #define CODE_GEN_PHYS_HASH_BITS 15 |
| 104 | #define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS) |
| 105 | |
| 106 | #define MIN_CODE_GEN_BUFFER_SIZE (1024 * 1024) |
| 107 | |
| 108 | /* estimated block size for TB allocation */ |
| 109 | /* XXX: use a per code average code fragment size and modulate it |
| 110 | according to the host CPU */ |
| 111 | #if defined(CONFIG_SOFTMMU) |
| 112 | #define CODE_GEN_AVG_BLOCK_SIZE 128 |
| 113 | #else |
| 114 | #define CODE_GEN_AVG_BLOCK_SIZE 64 |
| 115 | #endif |
| 116 | |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 117 | #if defined(_ARCH_PPC) || defined(__x86_64__) || defined(__arm__) || defined(__i386__) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 118 | #define USE_DIRECT_JUMP |
| 119 | #endif |
| 120 | |
| 121 | struct TranslationBlock { |
| 122 | target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */ |
| 123 | target_ulong cs_base; /* CS base for this block */ |
| 124 | uint64_t flags; /* flags defining in which context the code was generated */ |
| 125 | uint16_t size; /* size of target code for this block (1 <= |
| 126 | size <= TARGET_PAGE_SIZE) */ |
| 127 | uint16_t cflags; /* compile flags */ |
| 128 | #define CF_COUNT_MASK 0x7fff |
| 129 | #define CF_LAST_IO 0x8000 /* Last insn may be an IO access. */ |
| 130 | |
| 131 | uint8_t *tc_ptr; /* pointer to the translated code */ |
| 132 | /* next matching tb for physical address. */ |
| 133 | struct TranslationBlock *phys_hash_next; |
| 134 | /* first and second physical page containing code. The lower bit |
| 135 | of the pointer tells the index in page_next[] */ |
| 136 | struct TranslationBlock *page_next[2]; |
| 137 | target_ulong page_addr[2]; |
| 138 | |
| 139 | /* the following data are used to directly call another TB from |
| 140 | the code of this one. */ |
| 141 | uint16_t tb_next_offset[2]; /* offset of original jump target */ |
| 142 | #ifdef USE_DIRECT_JUMP |
| 143 | uint16_t tb_jmp_offset[4]; /* offset of jump instruction */ |
| 144 | #else |
| 145 | unsigned long tb_next[2]; /* address of jump generated code */ |
| 146 | #endif |
| 147 | /* list of TBs jumping to this one. This is a circular list using |
| 148 | the two least significant bits of the pointers to tell what is |
| 149 | the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 = |
| 150 | jmp_first */ |
| 151 | struct TranslationBlock *jmp_next[2]; |
| 152 | struct TranslationBlock *jmp_first; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 153 | #ifdef CONFIG_TRACE |
| 154 | struct BBRec *bb_rec; |
| 155 | uint64_t prev_time; |
| 156 | #endif |
Vladimir Chtchetkine | 5389aa1 | 2010-02-16 10:38:35 -0800 | [diff] [blame] | 157 | |
| 158 | #ifdef CONFIG_MEMCHECK |
| 159 | /* Maps PCs in this translation block to corresponding PCs in guest address |
| 160 | * space. The array is arranged in such way, that every even entry contains |
| 161 | * PC in the translation block, followed by an odd entry that contains |
| 162 | * guest PC corresponding to that PC in the translation block. This |
| 163 | * arrangement is set by tcg_gen_code_common that initializes this array |
| 164 | * when performing guest code translation. */ |
| 165 | target_ulong* tpc2gpc; |
| 166 | /* Number of pairs (pc_tb, pc_guest) in tpc2gpc array. */ |
| 167 | unsigned int tpc2gpc_pairs; |
| 168 | #endif // CONFIG_MEMCHECK |
| 169 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 170 | uint32_t icount; |
| 171 | }; |
| 172 | |
| 173 | static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc) |
| 174 | { |
| 175 | target_ulong tmp; |
| 176 | tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)); |
| 177 | return (tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK; |
| 178 | } |
| 179 | |
| 180 | static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc) |
| 181 | { |
| 182 | target_ulong tmp; |
| 183 | tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)); |
| 184 | return (((tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK) |
| 185 | | (tmp & TB_JMP_ADDR_MASK)); |
| 186 | } |
| 187 | |
| 188 | static inline unsigned int tb_phys_hash_func(unsigned long pc) |
| 189 | { |
| 190 | return pc & (CODE_GEN_PHYS_HASH_SIZE - 1); |
| 191 | } |
| 192 | |
Vladimir Chtchetkine | 5389aa1 | 2010-02-16 10:38:35 -0800 | [diff] [blame] | 193 | #ifdef CONFIG_MEMCHECK |
| 194 | /* Gets translated PC for a given (translated PC, guest PC) pair. |
| 195 | * Return: |
| 196 | * Translated PC, or NULL if pair index was too large. |
| 197 | */ |
| 198 | static inline target_ulong |
| 199 | tb_get_tb_pc(const TranslationBlock* tb, unsigned int pair) |
| 200 | { |
| 201 | return (tb->tpc2gpc != NULL && pair < tb->tpc2gpc_pairs) ? |
| 202 | tb->tpc2gpc[pair * 2] : 0; |
| 203 | } |
| 204 | |
| 205 | /* Gets guest PC for a given (translated PC, guest PC) pair. |
| 206 | * Return: |
| 207 | * Guest PC, or NULL if pair index was too large. |
| 208 | */ |
| 209 | static inline target_ulong |
| 210 | tb_get_guest_pc(const TranslationBlock* tb, unsigned int pair) |
| 211 | { |
| 212 | return (tb->tpc2gpc != NULL && pair < tb->tpc2gpc_pairs) ? |
| 213 | tb->tpc2gpc[pair * 2 + 1] : 0; |
| 214 | } |
| 215 | |
| 216 | /* Gets guest PC for a given translated PC. |
| 217 | * Return: |
| 218 | * Guest PC for a given translated PC, or NULL if there was no pair, matching |
| 219 | * translated PC in tb's tpc2gpc array. |
| 220 | */ |
| 221 | static inline target_ulong |
| 222 | tb_search_guest_pc_from_tb_pc(const TranslationBlock* tb, target_ulong tb_pc) |
| 223 | { |
| 224 | if (tb->tpc2gpc != NULL && tb->tpc2gpc_pairs != 0) { |
| 225 | unsigned int m_min = 0; |
| 226 | unsigned int m_max = (tb->tpc2gpc_pairs - 1) << 1; |
| 227 | /* Make sure that tb_pc is within TB array. */ |
| 228 | if (tb_pc < tb->tpc2gpc[0]) { |
| 229 | return 0; |
| 230 | } |
| 231 | while (m_min <= m_max) { |
| 232 | const unsigned int m = ((m_min + m_max) >> 1) & ~1; |
| 233 | if (tb_pc < tb->tpc2gpc[m]) { |
| 234 | m_max = m - 2; |
| 235 | } else if (m == m_max || tb_pc < tb->tpc2gpc[m + 2]) { |
| 236 | return tb->tpc2gpc[m + 1]; |
| 237 | } else { |
| 238 | m_min = m + 2; |
| 239 | } |
| 240 | } |
| 241 | return tb->tpc2gpc[m_max + 1]; |
| 242 | } |
| 243 | return 0; |
| 244 | } |
| 245 | #endif // CONFIG_MEMCHECK |
| 246 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 247 | TranslationBlock *tb_alloc(target_ulong pc); |
| 248 | void tb_free(TranslationBlock *tb); |
| 249 | void tb_flush(CPUState *env); |
| 250 | void tb_link_phys(TranslationBlock *tb, |
| 251 | target_ulong phys_pc, target_ulong phys_page2); |
| 252 | void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr); |
| 253 | |
| 254 | extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
| 255 | extern uint8_t *code_gen_ptr; |
| 256 | extern int code_gen_max_blocks; |
| 257 | |
| 258 | #if defined(USE_DIRECT_JUMP) |
| 259 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 260 | #if defined(_ARCH_PPC) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 261 | extern void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr); |
| 262 | #define tb_set_jmp_target1 ppc_tb_set_jmp_target |
| 263 | #elif defined(__i386__) || defined(__x86_64__) |
| 264 | static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
| 265 | { |
| 266 | /* patch the branch destination */ |
| 267 | *(uint32_t *)jmp_addr = addr - (jmp_addr + 4); |
| 268 | /* no need to flush icache explicitly */ |
| 269 | } |
| 270 | #elif defined(__arm__) |
| 271 | static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr) |
| 272 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 273 | #if QEMU_GNUC_PREREQ(4, 1) |
| 274 | void __clear_cache(char *beg, char *end); |
| 275 | #else |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 276 | register unsigned long _beg __asm ("a1"); |
| 277 | register unsigned long _end __asm ("a2"); |
| 278 | register unsigned long _flg __asm ("a3"); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 279 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 280 | |
| 281 | /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */ |
David 'Digit' Turner | 2910f18 | 2010-05-10 18:48:35 -0700 | [diff] [blame] | 282 | *(uint32_t *)jmp_addr = |
| 283 | (*(uint32_t *)jmp_addr & ~0xffffff) |
| 284 | | (((addr - (jmp_addr + 8)) >> 2) & 0xffffff); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 285 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 286 | #if QEMU_GNUC_PREREQ(4, 1) |
| 287 | __clear_cache((char *) jmp_addr, (char *) jmp_addr + 4); |
| 288 | #else |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 289 | /* flush icache */ |
| 290 | _beg = jmp_addr; |
| 291 | _end = jmp_addr + 4; |
| 292 | _flg = 0; |
| 293 | __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 294 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 295 | } |
| 296 | #endif |
| 297 | |
| 298 | static inline void tb_set_jmp_target(TranslationBlock *tb, |
| 299 | int n, unsigned long addr) |
| 300 | { |
| 301 | unsigned long offset; |
| 302 | |
| 303 | offset = tb->tb_jmp_offset[n]; |
| 304 | tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr); |
| 305 | offset = tb->tb_jmp_offset[n + 2]; |
| 306 | if (offset != 0xffff) |
| 307 | tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr); |
| 308 | } |
| 309 | |
| 310 | #else |
| 311 | |
| 312 | /* set the jump target */ |
| 313 | static inline void tb_set_jmp_target(TranslationBlock *tb, |
| 314 | int n, unsigned long addr) |
| 315 | { |
| 316 | tb->tb_next[n] = addr; |
| 317 | } |
| 318 | |
| 319 | #endif |
| 320 | |
| 321 | static inline void tb_add_jump(TranslationBlock *tb, int n, |
| 322 | TranslationBlock *tb_next) |
| 323 | { |
| 324 | /* NOTE: this test is only needed for thread safety */ |
| 325 | if (!tb->jmp_next[n]) { |
| 326 | /* patch the native jump address */ |
| 327 | tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr); |
| 328 | |
| 329 | /* add in TB jmp circular list */ |
| 330 | tb->jmp_next[n] = tb_next->jmp_first; |
| 331 | tb_next->jmp_first = (TranslationBlock *)((long)(tb) | (n)); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | TranslationBlock *tb_find_pc(unsigned long pc_ptr); |
| 336 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 337 | extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
| 338 | extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; |
| 339 | extern void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
| 340 | |
| 341 | #include "qemu-lock.h" |
| 342 | |
| 343 | extern spinlock_t tb_lock; |
| 344 | |
| 345 | extern int tb_invalidated_flag; |
| 346 | |
| 347 | #if !defined(CONFIG_USER_ONLY) |
| 348 | |
| 349 | void tlb_fill(target_ulong addr, int is_write, int mmu_idx, |
| 350 | void *retaddr); |
| 351 | |
| 352 | #include "softmmu_defs.h" |
| 353 | |
| 354 | #define ACCESS_TYPE (NB_MMU_MODES + 1) |
| 355 | #define MEMSUFFIX _code |
| 356 | #define env cpu_single_env |
| 357 | |
| 358 | #define DATA_SIZE 1 |
| 359 | #include "softmmu_header.h" |
| 360 | |
| 361 | #define DATA_SIZE 2 |
| 362 | #include "softmmu_header.h" |
| 363 | |
| 364 | #define DATA_SIZE 4 |
| 365 | #include "softmmu_header.h" |
| 366 | |
| 367 | #define DATA_SIZE 8 |
| 368 | #include "softmmu_header.h" |
| 369 | |
| 370 | #undef ACCESS_TYPE |
| 371 | #undef MEMSUFFIX |
| 372 | #undef env |
| 373 | |
| 374 | #endif |
| 375 | |
| 376 | #if defined(CONFIG_USER_ONLY) |
| 377 | static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr) |
| 378 | { |
| 379 | return addr; |
| 380 | } |
| 381 | #else |
| 382 | /* NOTE: this function can trigger an exception */ |
| 383 | /* NOTE2: the returned address is not exactly the physical address: it |
| 384 | is the offset relative to phys_ram_base */ |
| 385 | static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr) |
| 386 | { |
| 387 | int mmu_idx, page_index, pd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 388 | void *p; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 389 | |
| 390 | page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
| 391 | mmu_idx = cpu_mmu_index(env1); |
| 392 | if (unlikely(env1->tlb_table[mmu_idx][page_index].addr_code != |
| 393 | (addr & TARGET_PAGE_MASK))) { |
| 394 | ldub_code(addr); |
| 395 | } |
| 396 | pd = env1->tlb_table[mmu_idx][page_index].addr_code & ~TARGET_PAGE_MASK; |
| 397 | if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) { |
| 398 | #if defined(TARGET_SPARC) || defined(TARGET_MIPS) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 399 | do_unassigned_access(addr, 0, 1, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 400 | #else |
| 401 | cpu_abort(env1, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr); |
| 402 | #endif |
| 403 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 404 | p = (void *)(unsigned long)addr |
| 405 | + env1->tlb_table[mmu_idx][page_index].addend; |
| 406 | return qemu_ram_addr_from_host(p); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 407 | } |
| 408 | |
David Turner | 6a9ef17 | 2010-09-09 22:54:36 +0200 | [diff] [blame^] | 409 | #if 0 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 410 | /* Deterministic execution requires that IO only be performed on the last |
| 411 | instruction of a TB so that interrupts take effect immediately. */ |
| 412 | static inline int can_do_io(CPUState *env) |
| 413 | { |
| 414 | if (!use_icount) |
| 415 | return 1; |
| 416 | |
| 417 | /* If not executing code then assume we are ok. */ |
| 418 | if (!env->current_tb) |
| 419 | return 1; |
| 420 | |
| 421 | return env->can_do_io != 0; |
| 422 | } |
| 423 | #endif |
David Turner | 6a9ef17 | 2010-09-09 22:54:36 +0200 | [diff] [blame^] | 424 | #endif /* 0 */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 425 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 426 | #ifdef CONFIG_KQEMU |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 427 | #define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG | CODE_DIRTY_FLAG)) |
| 428 | |
| 429 | #define MSR_QPI_COMMBASE 0xfabe0010 |
| 430 | |
| 431 | int kqemu_init(CPUState *env); |
| 432 | int kqemu_cpu_exec(CPUState *env); |
| 433 | void kqemu_flush_page(CPUState *env, target_ulong addr); |
| 434 | void kqemu_flush(CPUState *env, int global); |
| 435 | void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr); |
| 436 | void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr); |
Vladimir Chtchetkine | 5389aa1 | 2010-02-16 10:38:35 -0800 | [diff] [blame] | 437 | void kqemu_set_phys_mem(uint64_t start_addr, ram_addr_t size, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 438 | ram_addr_t phys_offset); |
| 439 | void kqemu_cpu_interrupt(CPUState *env); |
| 440 | void kqemu_record_dump(void); |
| 441 | |
| 442 | extern uint32_t kqemu_comm_base; |
| 443 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 444 | extern ram_addr_t kqemu_phys_ram_size; |
| 445 | extern uint8_t *kqemu_phys_ram_base; |
| 446 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 447 | static inline int kqemu_is_ok(CPUState *env) |
| 448 | { |
| 449 | return(env->kqemu_enabled && |
| 450 | (env->cr[0] & CR0_PE_MASK) && |
| 451 | !(env->hflags & HF_INHIBIT_IRQ_MASK) && |
| 452 | (env->eflags & IF_MASK) && |
| 453 | !(env->eflags & VM_MASK) && |
| 454 | (env->kqemu_enabled == 2 || |
| 455 | ((env->hflags & HF_CPL_MASK) == 3 && |
| 456 | (env->eflags & IOPL_MASK) != IOPL_MASK))); |
| 457 | } |
| 458 | |
| 459 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 460 | |
| 461 | typedef void (CPUDebugExcpHandler)(CPUState *env); |
| 462 | |
| 463 | CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler); |
| 464 | |
| 465 | /* vl.c */ |
| 466 | extern int singlestep; |
| 467 | |
| 468 | #endif |