cpu-all.h

   1 /*
   2  * defines common to all virtual CPUs
   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 #ifndef CPU_ALL_H
  21 #define CPU_ALL_H
  22
  23 #if defined(__arm__) || defined(__sparc__)
  24 #define WORDS_ALIGNED
  25 #endif
  26
  27 /* some important defines:
  28  *
  29  * WORDS_ALIGNED : if defined, the host cpu can only make word aligned
  30  * memory accesses.
  31  *
  32  * WORDS_BIGENDIAN : if defined, the host cpu is big endian and
  33  * otherwise little endian.
  34  *
  35  * (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet))
  36  *
  37  * TARGET_WORDS_BIGENDIAN : same for target cpu
  38  */
  39
  40 #include "bswap.h"
  41
  42 #if defined(WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
  43 #define BSWAP_NEEDED
  44 #endif
  45
  46 #ifdef BSWAP_NEEDED
  47
  48 static inline uint16_t tswap16(uint16_t s)
  49 {
  50     return bswap16(s);
  51 }
  52
  53 static inline uint32_t tswap32(uint32_t s)
  54 {
  55     return bswap32(s);
  56 }
  57
  58 static inline uint64_t tswap64(uint64_t s)
  59 {
  60     return bswap64(s);
  61 }
  62
  63 static inline void tswap16s(uint16_t *s)
  64 {
  65     *s = bswap16(*s);
  66 }
  67
  68 static inline void tswap32s(uint32_t *s)
  69 {
  70     *s = bswap32(*s);
  71 }
  72
  73 static inline void tswap64s(uint64_t *s)
  74 {
  75     *s = bswap64(*s);
  76 }
  77
  78 #else
  79
  80 static inline uint16_t tswap16(uint16_t s)
  81 {
  82     return s;
  83 }
  84
  85 static inline uint32_t tswap32(uint32_t s)
  86 {
  87     return s;
  88 }
  89
  90 static inline uint64_t tswap64(uint64_t s)
  91 {
  92     return s;
  93 }
  94
  95 static inline void tswap16s(uint16_t *s)
  96 {
  97 }
  98
  99 static inline void tswap32s(uint32_t *s)
 100 {
 101 }
 102
 103 static inline void tswap64s(uint64_t *s)
 104 {
 105 }
 106
 107 #endif
 108
 109 #if TARGET_LONG_SIZE == 4
 110 #define tswapl(s) tswap32(s)
 111 #define tswapls(s) tswap32s((uint32_t *)(s))
 112 #define bswaptls(s) bswap32s(s)
 113 #else
 114 #define tswapl(s) tswap64(s)
 115 #define tswapls(s) tswap64s((uint64_t *)(s))
 116 #define bswaptls(s) bswap64s(s)
 117 #endif
 118
 119 /* NOTE: arm FPA is horrible as double 32 bit words are stored in big
 120    endian ! */
 121 typedef union {
 122     float64 d;
 123 #if defined(WORDS_BIGENDIAN) \
 124     || (defined(__arm__) && !defined(__VFP_FP__) && !defined(CONFIG_SOFTFLOAT))
 125     struct {
 126         uint32_t upper;
 127         uint32_t lower;
 128     } l;
 129 #else
 130     struct {
 131         uint32_t lower;
 132         uint32_t upper;
 133     } l;
 134 #endif
 135     uint64_t ll;
 136 } CPU_DoubleU;
 137
 138 /* CPU memory access without any memory or io remapping */
 139
 140 /*
 141  * the generic syntax for the memory accesses is:
 142  *
 143  * load: ld{type}{sign}{size}{endian}_{access_type}(ptr)
 144  *
 145  * store: st{type}{size}{endian}_{access_type}(ptr, val)
 146  *
 147  * type is:
 148  * (empty): integer access
 149  *   f    : float access
 150  *
 151  * sign is:
 152  * (empty): for floats or 32 bit size
 153  *   u    : unsigned
 154  *   s    : signed
 155  *
 156  * size is:
 157  *   b: 8 bits
 158  *   w: 16 bits
 159  *   l: 32 bits
 160  *   q: 64 bits
 161  *
 162  * endian is:
 163  * (empty): target cpu endianness or 8 bit access
 164  *   r    : reversed target cpu endianness (not implemented yet)
 165  *   be   : big endian (not implemented yet)
 166  *   le   : little endian (not implemented yet)
 167  *
 168  * access_type is:
 169  *   raw    : host memory access
 170  *   user   : user mode access using soft MMU
 171  *   kernel : kernel mode access using soft MMU
 172  */
 173 static inline int ldub_p(void *ptr)
 174 {
 175     return *(uint8_t *)ptr;
 176 }
 177
 178 static inline int ldsb_p(void *ptr)
 179 {
 180     return *(int8_t *)ptr;
 181 }
 182
 183 static inline void stb_p(void *ptr, int v)
 184 {
 185     *(uint8_t *)ptr = v;
 186 }
 187
 188 /* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the
 189    kernel handles unaligned load/stores may give better results, but
 190    it is a system wide setting : bad */
 191 #if !defined(TARGET_WORDS_BIGENDIAN) && (defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED))
 192
 193 /* conservative code for little endian unaligned accesses */
 194 static inline int lduw_p(void *ptr)
 195 {
 196 #ifdef __powerpc__
 197     int val;
 198     __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
 199     return val;
 200 #else
 201     uint8_t *p = ptr;
 202     return p[0] | (p[1] << 8);
 203 #endif
 204 }
 205
 206 static inline int ldsw_p(void *ptr)
 207 {
 208 #ifdef __powerpc__
 209     int val;
 210     __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
 211     return (int16_t)val;
 212 #else
 213     uint8_t *p = ptr;
 214     return (int16_t)(p[0] | (p[1] << 8));
 215 #endif
 216 }
 217
 218 static inline int ldl_p(void *ptr)
 219 {
 220 #ifdef __powerpc__
 221     int val;
 222     __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr));
 223     return val;
 224 #else
 225     uint8_t *p = ptr;
 226     return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
 227 #endif
 228 }
 229
 230 static inline uint64_t ldq_p(void *ptr)
 231 {
 232     uint8_t *p = ptr;
 233     uint32_t v1, v2;
 234     v1 = ldl_p(p);
 235     v2 = ldl_p(p + 4);
 236     return v1 | ((uint64_t)v2 << 32);
 237 }
 238
 239 static inline void stw_p(void *ptr, int v)
 240 {
 241 #ifdef __powerpc__
 242     __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr));
 243 #else
 244     uint8_t *p = ptr;
 245     p[0] = v;
 246     p[1] = v >> 8;
 247 #endif
 248 }
 249
 250 static inline void stl_p(void *ptr, int v)
 251 {
 252 #ifdef __powerpc__
 253     __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr));
 254 #else
 255     uint8_t *p = ptr;
 256     p[0] = v;
 257     p[1] = v >> 8;
 258     p[2] = v >> 16;
 259     p[3] = v >> 24;
 260 #endif
 261 }
 262
 263 static inline void stq_p(void *ptr, uint64_t v)
 264 {
 265     uint8_t *p = ptr;
 266     stl_p(p, (uint32_t)v);
 267     stl_p(p + 4, v >> 32);
 268 }
 269
 270 /* float access */
 271
 272 static inline float32 ldfl_p(void *ptr)
 273 {
 274     union {
 275         float32 f;
 276         uint32_t i;
 277     } u;
 278     u.i = ldl_p(ptr);
 279     return u.f;
 280 }
 281
 282 static inline void stfl_p(void *ptr, float32 v)
 283 {
 284     union {
 285         float32 f;
 286         uint32_t i;
 287     } u;
 288     u.f = v;
 289     stl_p(ptr, u.i);
 290 }
 291
 292 static inline float64 ldfq_p(void *ptr)
 293 {
 294     CPU_DoubleU u;
 295     u.l.lower = ldl_p(ptr);
 296     u.l.upper = ldl_p(ptr + 4);
 297     return u.d;
 298 }
 299
 300 static inline void stfq_p(void *ptr, float64 v)
 301 {
 302     CPU_DoubleU u;
 303     u.d = v;
 304     stl_p(ptr, u.l.lower);
 305     stl_p(ptr + 4, u.l.upper);
 306 }
 307
 308 #elif defined(TARGET_WORDS_BIGENDIAN) && (!defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED))
 309
 310 static inline int lduw_p(void *ptr)
 311 {
 312 #if defined(__i386__)
 313     int val;
 314     asm volatile ("movzwl %1, %0\n"
 315                   "xchgb %b0, %h0\n"
 316                   : "=q" (val)
 317                   : "m" (*(uint16_t *)ptr));
 318     return val;
 319 #else
 320     uint8_t *b = (uint8_t *) ptr;
 321     return ((b[0] << 8) | b[1]);
 322 #endif
 323 }
 324
 325 static inline int ldsw_p(void *ptr)
 326 {
 327 #if defined(__i386__)
 328     int val;
 329     asm volatile ("movzwl %1, %0\n"
 330                   "xchgb %b0, %h0\n"
 331                   : "=q" (val)
 332                   : "m" (*(uint16_t *)ptr));
 333     return (int16_t)val;
 334 #else
 335     uint8_t *b = (uint8_t *) ptr;
 336     return (int16_t)((b[0] << 8) | b[1]);
 337 #endif
 338 }
 339
 340 static inline int ldl_p(void *ptr)
 341 {
 342 #if defined(__i386__) || defined(__x86_64__)
 343     int val;
 344     asm volatile ("movl %1, %0\n"
 345                   "bswap %0\n"
 346                   : "=r" (val)
 347                   : "m" (*(uint32_t *)ptr));
 348     return val;
 349 #else
 350     uint8_t *b = (uint8_t *) ptr;
 351     return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
 352 #endif
 353 }
 354
 355 static inline uint64_t ldq_p(void *ptr)
 356 {
 357     uint32_t a,b;
 358     a = ldl_p(ptr);
 359     b = ldl_p(ptr+4);
 360     return (((uint64_t)a<<32)|b);
 361 }
 362
 363 static inline void stw_p(void *ptr, int v)
 364 {
 365 #if defined(__i386__)
 366     asm volatile ("xchgb %b0, %h0\n"
 367                   "movw %w0, %1\n"
 368                   : "=q" (v)
 369                   : "m" (*(uint16_t *)ptr), "0" (v));
 370 #else
 371     uint8_t *d = (uint8_t *) ptr;
 372     d[0] = v >> 8;
 373     d[1] = v;
 374 #endif
 375 }
 376
 377 static inline void stl_p(void *ptr, int v)
 378 {
 379 #if defined(__i386__) || defined(__x86_64__)
 380     asm volatile ("bswap %0\n"
 381                   "movl %0, %1\n"
 382                   : "=r" (v)
 383                   : "m" (*(uint32_t *)ptr), "0" (v));
 384 #else
 385     uint8_t *d = (uint8_t *) ptr;
 386     d[0] = v >> 24;
 387     d[1] = v >> 16;
 388     d[2] = v >> 8;
 389     d[3] = v;
 390 #endif
 391 }
 392
 393 static inline void stq_p(void *ptr, uint64_t v)
 394 {
 395     stl_p(ptr, v >> 32);
 396     stl_p(ptr + 4, v);
 397 }
 398
 399 /* float access */
 400
 401 static inline float32 ldfl_p(void *ptr)
 402 {
 403     union {
 404         float32 f;
 405         uint32_t i;
 406     } u;
 407     u.i = ldl_p(ptr);
 408     return u.f;
 409 }
 410
 411 static inline void stfl_p(void *ptr, float32 v)
 412 {
 413     union {
 414         float32 f;
 415         uint32_t i;
 416     } u;
 417     u.f = v;
 418     stl_p(ptr, u.i);
 419 }
 420
 421 static inline float64 ldfq_p(void *ptr)
 422 {
 423     CPU_DoubleU u;
 424     u.l.upper = ldl_p(ptr);
 425     u.l.lower = ldl_p(ptr + 4);
 426     return u.d;
 427 }
 428
 429 static inline void stfq_p(void *ptr, float64 v)
 430 {
 431     CPU_DoubleU u;
 432     u.d = v;
 433     stl_p(ptr, u.l.upper);
 434     stl_p(ptr + 4, u.l.lower);
 435 }
 436
 437 #else
 438
 439 static inline int lduw_p(void *ptr)
 440 {
 441     return *(uint16_t *)ptr;
 442 }
 443
 444 static inline int ldsw_p(void *ptr)
 445 {
 446     return *(int16_t *)ptr;
 447 }
 448
 449 static inline int ldl_p(void *ptr)
 450 {
 451     return *(uint32_t *)ptr;
 452 }
 453
 454 static inline uint64_t ldq_p(void *ptr)
 455 {
 456     return *(uint64_t *)ptr;
 457 }
 458
 459 static inline void stw_p(void *ptr, int v)
 460 {
 461     *(uint16_t *)ptr = v;
 462 }
 463
 464 static inline void stl_p(void *ptr, int v)
 465 {
 466     *(uint32_t *)ptr = v;
 467 }
 468
 469 static inline void stq_p(void *ptr, uint64_t v)
 470 {
 471     *(uint64_t *)ptr = v;
 472 }
 473
 474 /* float access */
 475
 476 static inline float32 ldfl_p(void *ptr)
 477 {
 478     return *(float32 *)ptr;
 479 }
 480
 481 static inline float64 ldfq_p(void *ptr)
 482 {
 483     return *(float64 *)ptr;
 484 }
 485
 486 static inline void stfl_p(void *ptr, float32 v)
 487 {
 488     *(float32 *)ptr = v;
 489 }
 490
 491 static inline void stfq_p(void *ptr, float64 v)
 492 {
 493     *(float64 *)ptr = v;
 494 }
 495 #endif
 496
 497 /* MMU memory access macros */
 498
 499 /* NOTE: we use double casts if pointers and target_ulong have
 500    different sizes */
 501 #define ldub_raw(p) ldub_p((uint8_t *)(long)(p))
 502 #define ldsb_raw(p) ldsb_p((uint8_t *)(long)(p))
 503 #define lduw_raw(p) lduw_p((uint8_t *)(long)(p))
 504 #define ldsw_raw(p) ldsw_p((uint8_t *)(long)(p))
 505 #define ldl_raw(p) ldl_p((uint8_t *)(long)(p))
 506 #define ldq_raw(p) ldq_p((uint8_t *)(long)(p))
 507 #define ldfl_raw(p) ldfl_p((uint8_t *)(long)(p))
 508 #define ldfq_raw(p) ldfq_p((uint8_t *)(long)(p))
 509 #define stb_raw(p, v) stb_p((uint8_t *)(long)(p), v)
 510 #define stw_raw(p, v) stw_p((uint8_t *)(long)(p), v)
 511 #define stl_raw(p, v) stl_p((uint8_t *)(long)(p), v)
 512 #define stq_raw(p, v) stq_p((uint8_t *)(long)(p), v)
 513 #define stfl_raw(p, v) stfl_p((uint8_t *)(long)(p), v)
 514 #define stfq_raw(p, v) stfq_p((uint8_t *)(long)(p), v)
 515
 516
 517 #if defined(CONFIG_USER_ONLY)
 518
 519 /* if user mode, no other memory access functions */
 520 #define ldub(p) ldub_raw(p)
 521 #define ldsb(p) ldsb_raw(p)
 522 #define lduw(p) lduw_raw(p)
 523 #define ldsw(p) ldsw_raw(p)
 524 #define ldl(p) ldl_raw(p)
 525 #define ldq(p) ldq_raw(p)
 526 #define ldfl(p) ldfl_raw(p)
 527 #define ldfq(p) ldfq_raw(p)
 528 #define stb(p, v) stb_raw(p, v)
 529 #define stw(p, v) stw_raw(p, v)
 530 #define stl(p, v) stl_raw(p, v)
 531 #define stq(p, v) stq_raw(p, v)
 532 #define stfl(p, v) stfl_raw(p, v)
 533 #define stfq(p, v) stfq_raw(p, v)
 534
 535 #define ldub_code(p) ldub_raw(p)
 536 #define ldsb_code(p) ldsb_raw(p)
 537 #define lduw_code(p) lduw_raw(p)
 538 #define ldsw_code(p) ldsw_raw(p)
 539 #define ldl_code(p) ldl_raw(p)
 540
 541 #define ldub_kernel(p) ldub_raw(p)
 542 #define ldsb_kernel(p) ldsb_raw(p)
 543 #define lduw_kernel(p) lduw_raw(p)
 544 #define ldsw_kernel(p) ldsw_raw(p)
 545 #define ldl_kernel(p) ldl_raw(p)
 546 #define ldfl_kernel(p) ldfl_raw(p)
 547 #define ldfq_kernel(p) ldfq_raw(p)
 548 #define stb_kernel(p, v) stb_raw(p, v)
 549 #define stw_kernel(p, v) stw_raw(p, v)
 550 #define stl_kernel(p, v) stl_raw(p, v)
 551 #define stq_kernel(p, v) stq_raw(p, v)
 552 #define stfl_kernel(p, v) stfl_raw(p, v)
 553 #define stfq_kernel(p, vt) stfq_raw(p, v)
 554
 555 #endif /* defined(CONFIG_USER_ONLY) */
 556
 557 /* page related stuff */
 558
 559 #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS)
 560 #define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1)
 561 #define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK)
 562
 563 extern unsigned long qemu_real_host_page_size;
 564 extern unsigned long qemu_host_page_bits;
 565 extern unsigned long qemu_host_page_size;
 566 extern unsigned long qemu_host_page_mask;
 567
 568 #define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask)
 569
 570 /* same as PROT_xxx */
 571 #define PAGE_READ      0x0001
 572 #define PAGE_WRITE     0x0002
 573 #define PAGE_EXEC      0x0004
 574 #define PAGE_BITS      (PAGE_READ | PAGE_WRITE | PAGE_EXEC)
 575 #define PAGE_VALID     0x0008
 576 /* original state of the write flag (used when tracking self-modifying
 577    code */
 578 #define PAGE_WRITE_ORG 0x0010
 579
 580 void page_dump(FILE *f);
 581 int page_get_flags(unsigned long address);
 582 void page_set_flags(unsigned long start, unsigned long end, int flags);
 583 void page_unprotect_range(uint8_t *data, unsigned long data_size);
 584
 585 #define SINGLE_CPU_DEFINES
 586 #ifdef SINGLE_CPU_DEFINES
 587
 588 #if defined(TARGET_I386)
 589
 590 #define CPUState CPUX86State
 591 #define cpu_init cpu_x86_init
 592 #define cpu_exec cpu_x86_exec
 593 #define cpu_gen_code cpu_x86_gen_code
 594 #define cpu_signal_handler cpu_x86_signal_handler
 595
 596 #elif defined(TARGET_ARM)
 597
 598 #define CPUState CPUARMState
 599 #define cpu_init cpu_arm_init
 600 #define cpu_exec cpu_arm_exec
 601 #define cpu_gen_code cpu_arm_gen_code
 602 #define cpu_signal_handler cpu_arm_signal_handler
 603
 604 #elif defined(TARGET_SPARC)
 605
 606 #define CPUState CPUSPARCState
 607 #define cpu_init cpu_sparc_init
 608 #define cpu_exec cpu_sparc_exec
 609 #define cpu_gen_code cpu_sparc_gen_code
 610 #define cpu_signal_handler cpu_sparc_signal_handler
 611
 612 #elif defined(TARGET_PPC)
 613
 614 #define CPUState CPUPPCState
 615 #define cpu_init cpu_ppc_init
 616 #define cpu_exec cpu_ppc_exec
 617 #define cpu_gen_code cpu_ppc_gen_code
 618 #define cpu_signal_handler cpu_ppc_signal_handler
 619
 620 #else
 621
 622 #error unsupported target CPU
 623
 624 #endif
 625
 626 #endif /* SINGLE_CPU_DEFINES */
 627
 628 void cpu_dump_state(CPUState *env, FILE *f,
 629                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
 630                     int flags);
 631
 632 void cpu_abort(CPUState *env, const char *fmt, ...);
 633 extern CPUState *cpu_single_env;
 634 extern int code_copy_enabled;
 635
 636 #define CPU_INTERRUPT_EXIT   0x01 /* wants exit from main loop */
 637 #define CPU_INTERRUPT_HARD   0x02 /* hardware interrupt pending */
 638 #define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
 639 #define CPU_INTERRUPT_TIMER  0x08 /* internal timer exception pending */
 640 void cpu_interrupt(CPUState *s, int mask);
 641 void cpu_reset_interrupt(CPUState *env, int mask);
 642
 643 int cpu_breakpoint_insert(CPUState *env, target_ulong pc);
 644 int cpu_breakpoint_remove(CPUState *env, target_ulong pc);
 645 void cpu_single_step(CPUState *env, int enabled);
 646 void cpu_reset(CPUState *s);
 647
 648 /* Return the physical page corresponding to a virtual one. Use it
 649    only for debugging because no protection checks are done. Return -1
 650    if no page found. */
 651 target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
 652
 653 #define CPU_LOG_TB_OUT_ASM (1 << 0)
 654 #define CPU_LOG_TB_IN_ASM  (1 << 1)
 655 #define CPU_LOG_TB_OP      (1 << 2)
 656 #define CPU_LOG_TB_OP_OPT  (1 << 3)
 657 #define CPU_LOG_INT        (1 << 4)
 658 #define CPU_LOG_EXEC       (1 << 5)
 659 #define CPU_LOG_PCALL      (1 << 6)
 660 #define CPU_LOG_IOPORT     (1 << 7)
 661 #define CPU_LOG_TB_CPU     (1 << 8)
 662
 663 /* define log items */
 664 typedef struct CPULogItem {
 665     int mask;
 666     const char *name;
 667     const char *help;
 668 } CPULogItem;
 669
 670 extern CPULogItem cpu_log_items[];
 671
 672 void cpu_set_log(int log_flags);
 673 void cpu_set_log_filename(const char *filename);
 674 int cpu_str_to_log_mask(const char *str);
 675
 676 /* IO ports API */
 677
 678 /* NOTE: as these functions may be even used when there is an isa
 679    brige on non x86 targets, we always defined them */
 680 #ifndef NO_CPU_IO_DEFS
 681 void cpu_outb(CPUState *env, int addr, int val);
 682 void cpu_outw(CPUState *env, int addr, int val);
 683 void cpu_outl(CPUState *env, int addr, int val);
 684 int cpu_inb(CPUState *env, int addr);
 685 int cpu_inw(CPUState *env, int addr);
 686 int cpu_inl(CPUState *env, int addr);
 687 #endif
 688
 689 /* memory API */
 690
 691 extern int phys_ram_size;
 692 extern int phys_ram_fd;
 693 extern uint8_t *phys_ram_base;
 694 extern uint8_t *phys_ram_dirty;
 695
 696 /* physical memory access */
 697 #define IO_MEM_NB_ENTRIES  256
 698 #define TLB_INVALID_MASK   (1 << 3)
 699 #define IO_MEM_SHIFT       4
 700
 701 #define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
 702 #define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
 703 #define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
 704 #define IO_MEM_CODE        (3 << IO_MEM_SHIFT) /* used internally, never use directly */
 705 #define IO_MEM_NOTDIRTY    (4 << IO_MEM_SHIFT) /* used internally, never use directly */
 706
 707 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
 708 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
 709
 710 void cpu_register_physical_memory(target_phys_addr_t start_addr,
 711                                   unsigned long size,
 712                                   unsigned long phys_offset);
 713 int cpu_register_io_memory(int io_index,
 714                            CPUReadMemoryFunc **mem_read,
 715                            CPUWriteMemoryFunc **mem_write,
 716                            void *opaque);
 717 CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index);
 718 CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index);
 719
 720 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
 721                             int len, int is_write);
 722 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
 723                                             uint8_t *buf, int len)
 724 {
 725     cpu_physical_memory_rw(addr, buf, len, 0);
 726 }
 727 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
 728                                              const uint8_t *buf, int len)
 729 {
 730     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
 731 }
 732 uint32_t ldl_phys(target_phys_addr_t addr);
 733 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
 734 void stl_phys(target_phys_addr_t addr, uint32_t val);
 735
 736 int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
 737                         uint8_t *buf, int len, int is_write);
 738
 739 #define VGA_DIRTY_FLAG 0x01
 740
 741 /* read dirty bit (return 0 or 1) */
 742 static inline int cpu_physical_memory_is_dirty(target_ulong addr)
 743 {
 744     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
 745 }
 746
 747 static inline int cpu_physical_memory_get_dirty(target_ulong addr,
 748                                                 int dirty_flags)
 749 {
 750     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
 751 }
 752
 753 static inline void cpu_physical_memory_set_dirty(target_ulong addr)
 754 {
 755     phys_ram_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
 756 }
 757
 758 void cpu_physical_memory_reset_dirty(target_ulong start, target_ulong end,
 759                                      int dirty_flags);
 760
 761 void dump_exec_info(FILE *f,
 762                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
 763
 764 #endif /* CPU_ALL_H */