| 1 | /*
|
|---|
| 2 | * Software MMU support
|
|---|
| 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
|
|---|
| 17 | * License along with this library; if not, write to the Free Software
|
|---|
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|---|
| 19 | */
|
|---|
| 20 |
|
|---|
| 21 | /*
|
|---|
| 22 | * Sun LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
|
|---|
| 23 | * other than GPL or LGPL is available it will apply instead, Sun elects to use only
|
|---|
| 24 | * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
|
|---|
| 25 | * a choice of LGPL license versions is made available with the language indicating
|
|---|
| 26 | * that LGPLv2 or any later version may be used, or where a choice of which version
|
|---|
| 27 | * of the LGPL is applied is otherwise unspecified.
|
|---|
| 28 | */
|
|---|
| 29 | #if DATA_SIZE == 8
|
|---|
| 30 | #define SUFFIX q
|
|---|
| 31 | #define USUFFIX q
|
|---|
| 32 | #define DATA_TYPE uint64_t
|
|---|
| 33 | #elif DATA_SIZE == 4
|
|---|
| 34 | #define SUFFIX l
|
|---|
| 35 | #define USUFFIX l
|
|---|
| 36 | #define DATA_TYPE uint32_t
|
|---|
| 37 | #elif DATA_SIZE == 2
|
|---|
| 38 | #define SUFFIX w
|
|---|
| 39 | #define USUFFIX uw
|
|---|
| 40 | #define DATA_TYPE uint16_t
|
|---|
| 41 | #define DATA_STYPE int16_t
|
|---|
| 42 | #elif DATA_SIZE == 1
|
|---|
| 43 | #define SUFFIX b
|
|---|
| 44 | #define USUFFIX ub
|
|---|
| 45 | #define DATA_TYPE uint8_t
|
|---|
| 46 | #define DATA_STYPE int8_t
|
|---|
| 47 | #else
|
|---|
| 48 | #error unsupported data size
|
|---|
| 49 | #endif
|
|---|
| 50 |
|
|---|
| 51 | #if ACCESS_TYPE < (NB_MMU_MODES)
|
|---|
| 52 |
|
|---|
| 53 | #define CPU_MMU_INDEX ACCESS_TYPE
|
|---|
| 54 | #define MMUSUFFIX _mmu
|
|---|
| 55 |
|
|---|
| 56 | #elif ACCESS_TYPE == (NB_MMU_MODES)
|
|---|
| 57 |
|
|---|
| 58 | #define CPU_MMU_INDEX (cpu_mmu_index(env))
|
|---|
| 59 | #define MMUSUFFIX _mmu
|
|---|
| 60 |
|
|---|
| 61 | #elif ACCESS_TYPE == (NB_MMU_MODES + 1)
|
|---|
| 62 |
|
|---|
| 63 | #define CPU_MMU_INDEX (cpu_mmu_index(env))
|
|---|
| 64 | #define MMUSUFFIX _cmmu
|
|---|
| 65 |
|
|---|
| 66 | #else
|
|---|
| 67 | #error invalid ACCESS_TYPE
|
|---|
| 68 | #endif
|
|---|
| 69 |
|
|---|
| 70 | #if DATA_SIZE == 8
|
|---|
| 71 | #define RES_TYPE uint64_t
|
|---|
| 72 | #else
|
|---|
| 73 | #define RES_TYPE int
|
|---|
| 74 | #endif
|
|---|
| 75 |
|
|---|
| 76 | #if ACCESS_TYPE == (NB_MMU_MODES + 1)
|
|---|
| 77 | #define ADDR_READ addr_code
|
|---|
| 78 | #else
|
|---|
| 79 | #define ADDR_READ addr_read
|
|---|
| 80 | #endif
|
|---|
| 81 |
|
|---|
| 82 | #if (DATA_SIZE <= 4) && (TARGET_LONG_BITS == 32) && defined(__i386__) && \
|
|---|
| 83 | (ACCESS_TYPE < NB_MMU_MODES) && defined(ASM_SOFTMMU) && !defined(VBOX)
|
|---|
| 84 |
|
|---|
| 85 | static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 86 | {
|
|---|
| 87 | int res;
|
|---|
| 88 |
|
|---|
| 89 | asm volatile ("movl %1, %%edx\n"
|
|---|
| 90 | "movl %1, %%eax\n"
|
|---|
| 91 | "shrl %3, %%edx\n"
|
|---|
| 92 | "andl %4, %%eax\n"
|
|---|
| 93 | "andl %2, %%edx\n"
|
|---|
| 94 | "leal %5(%%edx, %%ebp), %%edx\n"
|
|---|
| 95 | "cmpl (%%edx), %%eax\n"
|
|---|
| 96 | "movl %1, %%eax\n"
|
|---|
| 97 | "je 1f\n"
|
|---|
| 98 | "movl %6, %%edx\n"
|
|---|
| 99 | "call %7\n"
|
|---|
| 100 | "movl %%eax, %0\n"
|
|---|
| 101 | "jmp 2f\n"
|
|---|
| 102 | "1:\n"
|
|---|
| 103 | "addl 12(%%edx), %%eax\n"
|
|---|
| 104 | #if DATA_SIZE == 1
|
|---|
| 105 | "movzbl (%%eax), %0\n"
|
|---|
| 106 | #elif DATA_SIZE == 2
|
|---|
| 107 | "movzwl (%%eax), %0\n"
|
|---|
| 108 | #elif DATA_SIZE == 4
|
|---|
| 109 | "movl (%%eax), %0\n"
|
|---|
| 110 | #else
|
|---|
| 111 | #error unsupported size
|
|---|
| 112 | #endif
|
|---|
| 113 | "2:\n"
|
|---|
| 114 | : "=r" (res)
|
|---|
| 115 | : "r" (ptr),
|
|---|
| 116 | "i" ((CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS),
|
|---|
| 117 | "i" (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
|
|---|
| 118 | "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
|
|---|
| 119 | "m" (*(uint32_t *)offsetof(CPUState, tlb_table[CPU_MMU_INDEX][0].addr_read)),
|
|---|
| 120 | "i" (CPU_MMU_INDEX),
|
|---|
| 121 | "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX))
|
|---|
| 122 | : "%eax", "%ecx", "%edx", "memory", "cc");
|
|---|
| 123 | return res;
|
|---|
| 124 | }
|
|---|
| 125 |
|
|---|
| 126 | #if DATA_SIZE <= 2
|
|---|
| 127 | static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 128 | {
|
|---|
| 129 | int res;
|
|---|
| 130 |
|
|---|
| 131 | asm volatile ("movl %1, %%edx\n"
|
|---|
| 132 | "movl %1, %%eax\n"
|
|---|
| 133 | "shrl %3, %%edx\n"
|
|---|
| 134 | "andl %4, %%eax\n"
|
|---|
| 135 | "andl %2, %%edx\n"
|
|---|
| 136 | "leal %5(%%edx, %%ebp), %%edx\n"
|
|---|
| 137 | "cmpl (%%edx), %%eax\n"
|
|---|
| 138 | "movl %1, %%eax\n"
|
|---|
| 139 | "je 1f\n"
|
|---|
| 140 | "movl %6, %%edx\n"
|
|---|
| 141 | "call %7\n"
|
|---|
| 142 | #if DATA_SIZE == 1
|
|---|
| 143 | "movsbl %%al, %0\n"
|
|---|
| 144 | #elif DATA_SIZE == 2
|
|---|
| 145 | "movswl %%ax, %0\n"
|
|---|
| 146 | #else
|
|---|
| 147 | #error unsupported size
|
|---|
| 148 | #endif
|
|---|
| 149 | "jmp 2f\n"
|
|---|
| 150 | "1:\n"
|
|---|
| 151 | "addl 12(%%edx), %%eax\n"
|
|---|
| 152 | #if DATA_SIZE == 1
|
|---|
| 153 | "movsbl (%%eax), %0\n"
|
|---|
| 154 | #elif DATA_SIZE == 2
|
|---|
| 155 | "movswl (%%eax), %0\n"
|
|---|
| 156 | #else
|
|---|
| 157 | #error unsupported size
|
|---|
| 158 | #endif
|
|---|
| 159 | "2:\n"
|
|---|
| 160 | : "=r" (res)
|
|---|
| 161 | : "r" (ptr),
|
|---|
| 162 | "i" ((CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS),
|
|---|
| 163 | "i" (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
|
|---|
| 164 | "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
|
|---|
| 165 | "m" (*(uint32_t *)offsetof(CPUState, tlb_table[CPU_MMU_INDEX][0].addr_read)),
|
|---|
| 166 | "i" (CPU_MMU_INDEX),
|
|---|
| 167 | "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX))
|
|---|
| 168 | : "%eax", "%ecx", "%edx", "memory", "cc");
|
|---|
| 169 | return res;
|
|---|
| 170 | }
|
|---|
| 171 | #endif
|
|---|
| 172 |
|
|---|
| 173 | static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v)
|
|---|
| 174 | {
|
|---|
| 175 | asm volatile ("movl %0, %%edx\n"
|
|---|
| 176 | "movl %0, %%eax\n"
|
|---|
| 177 | "shrl %3, %%edx\n"
|
|---|
| 178 | "andl %4, %%eax\n"
|
|---|
| 179 | "andl %2, %%edx\n"
|
|---|
| 180 | "leal %5(%%edx, %%ebp), %%edx\n"
|
|---|
| 181 | "cmpl (%%edx), %%eax\n"
|
|---|
| 182 | "movl %0, %%eax\n"
|
|---|
| 183 | "je 1f\n"
|
|---|
| 184 | #if DATA_SIZE == 1
|
|---|
| 185 | "movzbl %b1, %%edx\n"
|
|---|
| 186 | #elif DATA_SIZE == 2
|
|---|
| 187 | "movzwl %w1, %%edx\n"
|
|---|
| 188 | #elif DATA_SIZE == 4
|
|---|
| 189 | "movl %1, %%edx\n"
|
|---|
| 190 | #else
|
|---|
| 191 | #error unsupported size
|
|---|
| 192 | #endif
|
|---|
| 193 | "movl %6, %%ecx\n"
|
|---|
| 194 | "call %7\n"
|
|---|
| 195 | "jmp 2f\n"
|
|---|
| 196 | "1:\n"
|
|---|
| 197 | "addl 8(%%edx), %%eax\n"
|
|---|
| 198 | #if DATA_SIZE == 1
|
|---|
| 199 | "movb %b1, (%%eax)\n"
|
|---|
| 200 | #elif DATA_SIZE == 2
|
|---|
| 201 | "movw %w1, (%%eax)\n"
|
|---|
| 202 | #elif DATA_SIZE == 4
|
|---|
| 203 | "movl %1, (%%eax)\n"
|
|---|
| 204 | #else
|
|---|
| 205 | #error unsupported size
|
|---|
| 206 | #endif
|
|---|
| 207 | "2:\n"
|
|---|
| 208 | :
|
|---|
| 209 | : "r" (ptr),
|
|---|
| 210 | #if DATA_SIZE == 1
|
|---|
| 211 | "q" (v),
|
|---|
| 212 | #else
|
|---|
| 213 | "r" (v),
|
|---|
| 214 | #endif
|
|---|
| 215 | "i" ((CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS),
|
|---|
| 216 | "i" (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
|
|---|
| 217 | "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
|
|---|
| 218 | "m" (*(uint32_t *)offsetof(CPUState, tlb_table[CPU_MMU_INDEX][0].addr_write)),
|
|---|
| 219 | "i" (CPU_MMU_INDEX),
|
|---|
| 220 | "m" (*(uint8_t *)&glue(glue(__st, SUFFIX), MMUSUFFIX))
|
|---|
| 221 | : "%eax", "%ecx", "%edx", "memory", "cc");
|
|---|
| 222 | }
|
|---|
| 223 | #else
|
|---|
| 224 |
|
|---|
| 225 | /* generic load/store macros */
|
|---|
| 226 |
|
|---|
| 227 | #ifndef VBOX
|
|---|
| 228 | static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 229 | #else
|
|---|
| 230 | DECLINLINE(RES_TYPE) glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 231 | #endif
|
|---|
| 232 | {
|
|---|
| 233 |
|
|---|
| 234 | int page_index;
|
|---|
| 235 | RES_TYPE res;
|
|---|
| 236 | target_ulong addr;
|
|---|
| 237 | unsigned long physaddr;
|
|---|
| 238 | int mmu_idx;
|
|---|
| 239 |
|
|---|
| 240 | addr = ptr;
|
|---|
| 241 | page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|---|
| 242 | mmu_idx = CPU_MMU_INDEX;
|
|---|
| 243 | if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
|
|---|
| 244 | (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|---|
| 245 | res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
|
|---|
| 246 | } else {
|
|---|
| 247 | physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|---|
| 248 | res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)physaddr);
|
|---|
| 249 | }
|
|---|
| 250 | return res;
|
|---|
| 251 | }
|
|---|
| 252 |
|
|---|
| 253 | #if DATA_SIZE <= 2
|
|---|
| 254 | #ifndef VBOX
|
|---|
| 255 | static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 256 | #else
|
|---|
| 257 | DECLINLINE(int) glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr)
|
|---|
| 258 | #endif
|
|---|
| 259 | {
|
|---|
| 260 | int res, page_index;
|
|---|
| 261 | target_ulong addr;
|
|---|
| 262 | unsigned long physaddr;
|
|---|
| 263 | int mmu_idx;
|
|---|
| 264 |
|
|---|
| 265 | addr = ptr;
|
|---|
| 266 | page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|---|
| 267 | mmu_idx = CPU_MMU_INDEX;
|
|---|
| 268 | if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
|
|---|
| 269 | (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|---|
| 270 | res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
|
|---|
| 271 | } else {
|
|---|
| 272 | physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|---|
| 273 | res = glue(glue(lds, SUFFIX), _raw)((uint8_t *)physaddr);
|
|---|
| 274 | }
|
|---|
| 275 | return res;
|
|---|
| 276 | }
|
|---|
| 277 | #endif
|
|---|
| 278 |
|
|---|
| 279 | #if ACCESS_TYPE != (NB_MMU_MODES + 1)
|
|---|
| 280 |
|
|---|
| 281 | /* generic store macro */
|
|---|
| 282 | #ifndef VBOX
|
|---|
| 283 | static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v)
|
|---|
| 284 | #else
|
|---|
| 285 | DECLINLINE(void) glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v)
|
|---|
| 286 | #endif
|
|---|
| 287 | {
|
|---|
| 288 | int page_index;
|
|---|
| 289 | target_ulong addr;
|
|---|
| 290 | unsigned long physaddr;
|
|---|
| 291 | int mmu_idx;
|
|---|
| 292 |
|
|---|
| 293 | addr = ptr;
|
|---|
| 294 | page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
|---|
| 295 | mmu_idx = CPU_MMU_INDEX;
|
|---|
| 296 | if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write !=
|
|---|
| 297 | (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
|
|---|
| 298 | glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, mmu_idx);
|
|---|
| 299 | } else {
|
|---|
| 300 | physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|---|
| 301 | glue(glue(st, SUFFIX), _raw)((uint8_t *)physaddr, v);
|
|---|
| 302 | }
|
|---|
| 303 | }
|
|---|
| 304 |
|
|---|
| 305 | #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
|
|---|
| 306 |
|
|---|
| 307 | #endif /* !asm */
|
|---|
| 308 |
|
|---|
| 309 | #if ACCESS_TYPE != (NB_MMU_MODES + 1)
|
|---|
| 310 |
|
|---|
| 311 | #if DATA_SIZE == 8
|
|---|
| 312 | #ifndef VBOX
|
|---|
| 313 | static inline float64 glue(ldfq, MEMSUFFIX)(target_ulong ptr)
|
|---|
| 314 | #else
|
|---|
| 315 | DECLINLINE(float64) glue(ldfq, MEMSUFFIX)(target_ulong ptr)
|
|---|
| 316 | #endif
|
|---|
| 317 | {
|
|---|
| 318 | union {
|
|---|
| 319 | float64 d;
|
|---|
| 320 | uint64_t i;
|
|---|
| 321 | } u;
|
|---|
| 322 | u.i = glue(ldq, MEMSUFFIX)(ptr);
|
|---|
| 323 | return u.d;
|
|---|
| 324 | }
|
|---|
| 325 |
|
|---|
| 326 | #ifndef VBOX
|
|---|
| 327 | static inline void glue(stfq, MEMSUFFIX)(target_ulong ptr, float64 v)
|
|---|
| 328 | #else
|
|---|
| 329 | DECLINLINE(void) glue(stfq, MEMSUFFIX)(target_ulong ptr, float64 v)
|
|---|
| 330 | #endif
|
|---|
| 331 | {
|
|---|
| 332 | union {
|
|---|
| 333 | float64 d;
|
|---|
| 334 | uint64_t i;
|
|---|
| 335 | } u;
|
|---|
| 336 | u.d = v;
|
|---|
| 337 | glue(stq, MEMSUFFIX)(ptr, u.i);
|
|---|
| 338 | }
|
|---|
| 339 | #endif /* DATA_SIZE == 8 */
|
|---|
| 340 |
|
|---|
| 341 | #if DATA_SIZE == 4
|
|---|
| 342 | #ifndef VBOX
|
|---|
| 343 | static inline float32 glue(ldfl, MEMSUFFIX)(target_ulong ptr)
|
|---|
| 344 | #else
|
|---|
| 345 | DECLINLINE(float32) glue(ldfl, MEMSUFFIX)(target_ulong ptr)
|
|---|
| 346 | #endif
|
|---|
| 347 | {
|
|---|
| 348 | union {
|
|---|
| 349 | float32 f;
|
|---|
| 350 | uint32_t i;
|
|---|
| 351 | } u;
|
|---|
| 352 | u.i = glue(ldl, MEMSUFFIX)(ptr);
|
|---|
| 353 | return u.f;
|
|---|
| 354 | }
|
|---|
| 355 |
|
|---|
| 356 | #ifndef VBOX
|
|---|
| 357 | static inline void glue(stfl, MEMSUFFIX)(target_ulong ptr, float32 v)
|
|---|
| 358 | #else
|
|---|
| 359 | DECLINLINE(void) glue(stfl, MEMSUFFIX)(target_ulong ptr, float32 v)
|
|---|
| 360 | #endif
|
|---|
| 361 | {
|
|---|
| 362 | union {
|
|---|
| 363 | float32 f;
|
|---|
| 364 | uint32_t i;
|
|---|
| 365 | } u;
|
|---|
| 366 | u.f = v;
|
|---|
| 367 | glue(stl, MEMSUFFIX)(ptr, u.i);
|
|---|
| 368 | }
|
|---|
| 369 | #endif /* DATA_SIZE == 4 */
|
|---|
| 370 |
|
|---|
| 371 | #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
|
|---|
| 372 |
|
|---|
| 373 | #undef RES_TYPE
|
|---|
| 374 | #undef DATA_TYPE
|
|---|
| 375 | #undef DATA_STYPE
|
|---|
| 376 | #undef SUFFIX
|
|---|
| 377 | #undef USUFFIX
|
|---|
| 378 | #undef DATA_SIZE
|
|---|
| 379 | #undef CPU_MMU_INDEX
|
|---|
| 380 | #undef MMUSUFFIX
|
|---|
| 381 | #undef ADDR_READ
|
|---|
