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__) || defined(__mips__)
  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(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
 192
 193 /* conservative code for little endian unaligned accesses */
 194 static inline int lduw_le_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_le_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_le_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_le_p(void *ptr)
 231 {
 232     uint8_t *p = ptr;
 233     uint32_t v1, v2;
 234     v1 = ldl_le_p(p);
 235     v2 = ldl_le_p(p + 4);
 236     return v1 | ((uint64_t)v2 << 32);
 237 }
 238
 239 static inline void stw_le_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_le_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_le_p(void *ptr, uint64_t v)
 264 {
 265     uint8_t *p = ptr;
 266     stl_le_p(p, (uint32_t)v);
 267     stl_le_p(p + 4, v >> 32);
 268 }
 269
 270 /* float access */
 271
 272 static inline float32 ldfl_le_p(void *ptr)
 273 {
 274     union {
 275         float32 f;
 276         uint32_t i;
 277     } u;
 278     u.i = ldl_le_p(ptr);
 279     return u.f;
 280 }
 281
 282 static inline void stfl_le_p(void *ptr, float32 v)
 283 {
 284     union {
 285         float32 f;
 286         uint32_t i;
 287     } u;
 288     u.f = v;
 289     stl_le_p(ptr, u.i);
 290 }
 291
 292 static inline float64 ldfq_le_p(void *ptr)
 293 {
 294     CPU_DoubleU u;
 295     u.l.lower = ldl_le_p(ptr);
 296     u.l.upper = ldl_le_p(ptr + 4);
 297     return u.d;
 298 }
 299
 300 static inline void stfq_le_p(void *ptr, float64 v)
 301 {
 302     CPU_DoubleU u;
 303     u.d = v;
 304     stl_le_p(ptr, u.l.lower);
 305     stl_le_p(ptr + 4, u.l.upper);
 306 }
 307
 308 #else
 309
 310 static inline int lduw_le_p(void *ptr)
 311 {
 312     return *(uint16_t *)ptr;
 313 }
 314
 315 static inline int ldsw_le_p(void *ptr)
 316 {
 317     return *(int16_t *)ptr;
 318 }
 319
 320 static inline int ldl_le_p(void *ptr)
 321 {
 322     return *(uint32_t *)ptr;
 323 }
 324
 325 static inline uint64_t ldq_le_p(void *ptr)
 326 {
 327     return *(uint64_t *)ptr;
 328 }
 329
 330 static inline void stw_le_p(void *ptr, int v)
 331 {
 332     *(uint16_t *)ptr = v;
 333 }
 334
 335 static inline void stl_le_p(void *ptr, int v)
 336 {
 337     *(uint32_t *)ptr = v;
 338 }
 339
 340 static inline void stq_le_p(void *ptr, uint64_t v)
 341 {
 342     *(uint64_t *)ptr = v;
 343 }
 344
 345 /* float access */
 346
 347 static inline float32 ldfl_le_p(void *ptr)
 348 {
 349     return *(float32 *)ptr;
 350 }
 351
 352 static inline float64 ldfq_le_p(void *ptr)
 353 {
 354     return *(float64 *)ptr;
 355 }
 356
 357 static inline void stfl_le_p(void *ptr, float32 v)
 358 {
 359     *(float32 *)ptr = v;
 360 }
 361
 362 static inline void stfq_le_p(void *ptr, float64 v)
 363 {
 364     *(float64 *)ptr = v;
 365 }
 366 #endif
 367
 368 #if !defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
 369
 370 static inline int lduw_be_p(void *ptr)
 371 {
 372 #if defined(__i386__)
 373     int val;
 374     asm volatile ("movzwl %1, %0\n"
 375                   "xchgb %b0, %h0\n"
 376                   : "=q" (val)
 377                   : "m" (*(uint16_t *)ptr));
 378     return val;
 379 #else
 380     uint8_t *b = (uint8_t *) ptr;
 381     return ((b[0] << 8) | b[1]);
 382 #endif
 383 }
 384
 385 static inline int ldsw_be_p(void *ptr)
 386 {
 387 #if defined(__i386__)
 388     int val;
 389     asm volatile ("movzwl %1, %0\n"
 390                   "xchgb %b0, %h0\n"
 391                   : "=q" (val)
 392                   : "m" (*(uint16_t *)ptr));
 393     return (int16_t)val;
 394 #else
 395     uint8_t *b = (uint8_t *) ptr;
 396     return (int16_t)((b[0] << 8) | b[1]);
 397 #endif
 398 }
 399
 400 static inline int ldl_be_p(void *ptr)
 401 {
 402 #if defined(__i386__) || defined(__x86_64__)
 403     int val;
 404     asm volatile ("movl %1, %0\n"
 405                   "bswap %0\n"
 406                   : "=r" (val)
 407                   : "m" (*(uint32_t *)ptr));
 408     return val;
 409 #else
 410     uint8_t *b = (uint8_t *) ptr;
 411     return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
 412 #endif
 413 }
 414
 415 static inline uint64_t ldq_be_p(void *ptr)
 416 {
 417     uint32_t a,b;
 418     a = ldl_be_p(ptr);
 419     b = ldl_be_p(ptr+4);
 420     return (((uint64_t)a<<32)|b);
 421 }
 422
 423 static inline void stw_be_p(void *ptr, int v)
 424 {
 425 #if defined(__i386__)
 426     asm volatile ("xchgb %b0, %h0\n"
 427                   "movw %w0, %1\n"
 428                   : "=q" (v)
 429                   : "m" (*(uint16_t *)ptr), "0" (v));
 430 #else
 431     uint8_t *d = (uint8_t *) ptr;
 432     d[0] = v >> 8;
 433     d[1] = v;
 434 #endif
 435 }
 436
 437 static inline void stl_be_p(void *ptr, int v)
 438 {
 439 #if defined(__i386__) || defined(__x86_64__)
 440     asm volatile ("bswap %0\n"
 441                   "movl %0, %1\n"
 442                   : "=r" (v)
 443                   : "m" (*(uint32_t *)ptr), "0" (v));
 444 #else
 445     uint8_t *d = (uint8_t *) ptr;
 446     d[0] = v >> 24;
 447     d[1] = v >> 16;
 448     d[2] = v >> 8;
 449     d[3] = v;
 450 #endif
 451 }
 452
 453 static inline void stq_be_p(void *ptr, uint64_t v)
 454 {
 455     stl_be_p(ptr, v >> 32);
 456     stl_be_p(ptr + 4, v);
 457 }
 458
 459 /* float access */
 460
 461 static inline float32 ldfl_be_p(void *ptr)
 462 {
 463     union {
 464         float32 f;
 465         uint32_t i;
 466     } u;
 467     u.i = ldl_be_p(ptr);
 468     return u.f;
 469 }
 470
 471 static inline void stfl_be_p(void *ptr, float32 v)
 472 {
 473     union {
 474         float32 f;
 475         uint32_t i;
 476     } u;
 477     u.f = v;
 478     stl_be_p(ptr, u.i);
 479 }
 480
 481 static inline float64 ldfq_be_p(void *ptr)
 482 {
 483     CPU_DoubleU u;
 484     u.l.upper = ldl_be_p(ptr);
 485     u.l.lower = ldl_be_p(ptr + 4);
 486     return u.d;
 487 }
 488
 489 static inline void stfq_be_p(void *ptr, float64 v)
 490 {
 491     CPU_DoubleU u;
 492     u.d = v;
 493     stl_be_p(ptr, u.l.upper);
 494     stl_be_p(ptr + 4, u.l.lower);
 495 }
 496
 497 #else
 498
 499 static inline int lduw_be_p(void *ptr)
 500 {
 501     return *(uint16_t *)ptr;
 502 }
 503
 504 static inline int ldsw_be_p(void *ptr)
 505 {
 506     return *(int16_t *)ptr;
 507 }
 508
 509 static inline int ldl_be_p(void *ptr)
 510 {
 511     return *(uint32_t *)ptr;
 512 }
 513
 514 static inline uint64_t ldq_be_p(void *ptr)
 515 {
 516     return *(uint64_t *)ptr;
 517 }
 518
 519 static inline void stw_be_p(void *ptr, int v)
 520 {
 521     *(uint16_t *)ptr = v;
 522 }
 523
 524 static inline void stl_be_p(void *ptr, int v)
 525 {
 526     *(uint32_t *)ptr = v;
 527 }
 528
 529 static inline void stq_be_p(void *ptr, uint64_t v)
 530 {
 531     *(uint64_t *)ptr = v;
 532 }
 533
 534 /* float access */
 535
 536 static inline float32 ldfl_be_p(void *ptr)
 537 {
 538     return *(float32 *)ptr;
 539 }
 540
 541 static inline float64 ldfq_be_p(void *ptr)
 542 {
 543     return *(float64 *)ptr;
 544 }
 545
 546 static inline void stfl_be_p(void *ptr, float32 v)
 547 {
 548     *(float32 *)ptr = v;
 549 }
 550
 551 static inline void stfq_be_p(void *ptr, float64 v)
 552 {
 553     *(float64 *)ptr = v;
 554 }
 555
 556 #endif
 557
 558 /* target CPU memory access functions */
 559 #if defined(TARGET_WORDS_BIGENDIAN)
 560 #define lduw_p(p) lduw_be_p(p)
 561 #define ldsw_p(p) ldsw_be_p(p)
 562 #define ldl_p(p) ldl_be_p(p)
 563 #define ldq_p(p) ldq_be_p(p)
 564 #define ldfl_p(p) ldfl_be_p(p)
 565 #define ldfq_p(p) ldfq_be_p(p)
 566 #define stw_p(p, v) stw_be_p(p, v)
 567 #define stl_p(p, v) stl_be_p(p, v)
 568 #define stq_p(p, v) stq_be_p(p, v)
 569 #define stfl_p(p, v) stfl_be_p(p, v)
 570 #define stfq_p(p, v) stfq_be_p(p, v)
 571 #else
 572 #define lduw_p(p) lduw_le_p(p)
 573 #define ldsw_p(p) ldsw_le_p(p)
 574 #define ldl_p(p) ldl_le_p(p)
 575 #define ldq_p(p) ldq_le_p(p)
 576 #define ldfl_p(p) ldfl_le_p(p)
 577 #define ldfq_p(p) ldfq_le_p(p)
 578 #define stw_p(p, v) stw_le_p(p, v)
 579 #define stl_p(p, v) stl_le_p(p, v)
 580 #define stq_p(p, v) stq_le_p(p, v)
 581 #define stfl_p(p, v) stfl_le_p(p, v)
 582 #define stfq_p(p, v) stfq_le_p(p, v)
 583 #endif
 584
 585 /* MMU memory access macros */
 586
 587 #if defined(CONFIG_USER_ONLY)
 588 /* On some host systems the guest address space is reserved on the host.
 589  * This allows the guest address space to be offset to a convenient location.
 590  */
 591 //#define GUEST_BASE 0x20000000
 592 #define GUEST_BASE 0
 593
 594 /* All direct uses of g2h and h2g need to go away for usermode softmmu.  */
 595 #define g2h(x) ((void *)((unsigned long)(x) + GUEST_BASE))
 596 #define h2g(x) ((target_ulong)(x - GUEST_BASE))
 597
 598 #define saddr(x) g2h(x)
 599 #define laddr(x) g2h(x)
 600
 601 #else /* !CONFIG_USER_ONLY */
 602 /* NOTE: we use double casts if pointers and target_ulong have
 603    different sizes */
 604 #define saddr(x) (uint8_t *)(long)(x)
 605 #define laddr(x) (uint8_t *)(long)(x)
 606 #endif
 607
 608 #define ldub_raw(p) ldub_p(laddr((p)))
 609 #define ldsb_raw(p) ldsb_p(laddr((p)))
 610 #define lduw_raw(p) lduw_p(laddr((p)))
 611 #define ldsw_raw(p) ldsw_p(laddr((p)))
 612 #define ldl_raw(p) ldl_p(laddr((p)))
 613 #define ldq_raw(p) ldq_p(laddr((p)))
 614 #define ldfl_raw(p) ldfl_p(laddr((p)))
 615 #define ldfq_raw(p) ldfq_p(laddr((p)))
 616 #define stb_raw(p, v) stb_p(saddr((p)), v)
 617 #define stw_raw(p, v) stw_p(saddr((p)), v)
 618 #define stl_raw(p, v) stl_p(saddr((p)), v)
 619 #define stq_raw(p, v) stq_p(saddr((p)), v)
 620 #define stfl_raw(p, v) stfl_p(saddr((p)), v)
 621 #define stfq_raw(p, v) stfq_p(saddr((p)), v)
 622
 623
 624 #if defined(CONFIG_USER_ONLY)
 625
 626 /* if user mode, no other memory access functions */
 627 #define ldub(p) ldub_raw(p)
 628 #define ldsb(p) ldsb_raw(p)
 629 #define lduw(p) lduw_raw(p)
 630 #define ldsw(p) ldsw_raw(p)
 631 #define ldl(p) ldl_raw(p)
 632 #define ldq(p) ldq_raw(p)
 633 #define ldfl(p) ldfl_raw(p)
 634 #define ldfq(p) ldfq_raw(p)
 635 #define stb(p, v) stb_raw(p, v)
 636 #define stw(p, v) stw_raw(p, v)
 637 #define stl(p, v) stl_raw(p, v)
 638 #define stq(p, v) stq_raw(p, v)
 639 #define stfl(p, v) stfl_raw(p, v)
 640 #define stfq(p, v) stfq_raw(p, v)
 641
 642 #define ldub_code(p) ldub_raw(p)
 643 #define ldsb_code(p) ldsb_raw(p)
 644 #define lduw_code(p) lduw_raw(p)
 645 #define ldsw_code(p) ldsw_raw(p)
 646 #define ldl_code(p) ldl_raw(p)
 647 #define ldq_code(p) ldq_raw(p)
 648
 649 #define ldub_kernel(p) ldub_raw(p)
 650 #define ldsb_kernel(p) ldsb_raw(p)
 651 #define lduw_kernel(p) lduw_raw(p)
 652 #define ldsw_kernel(p) ldsw_raw(p)
 653 #define ldl_kernel(p) ldl_raw(p)
 654 #define ldq_kernel(p) ldq_raw(p)
 655 #define ldfl_kernel(p) ldfl_raw(p)
 656 #define ldfq_kernel(p) ldfq_raw(p)
 657 #define stb_kernel(p, v) stb_raw(p, v)
 658 #define stw_kernel(p, v) stw_raw(p, v)
 659 #define stl_kernel(p, v) stl_raw(p, v)
 660 #define stq_kernel(p, v) stq_raw(p, v)
 661 #define stfl_kernel(p, v) stfl_raw(p, v)
 662 #define stfq_kernel(p, vt) stfq_raw(p, v)
 663
 664 #endif /* defined(CONFIG_USER_ONLY) */
 665
 666 /* page related stuff */
 667
 668 #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS)
 669 #define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1)
 670 #define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK)
 671
 672 /* ??? These should be the larger of unsigned long and target_ulong.  */
 673 extern unsigned long qemu_real_host_page_size;
 674 extern unsigned long qemu_host_page_bits;
 675 extern unsigned long qemu_host_page_size;
 676 extern unsigned long qemu_host_page_mask;
 677
 678 #define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask)
 679
 680 /* same as PROT_xxx */
 681 #define PAGE_READ      0x0001
 682 #define PAGE_WRITE     0x0002
 683 #define PAGE_EXEC      0x0004
 684 #define PAGE_BITS      (PAGE_READ | PAGE_WRITE | PAGE_EXEC)
 685 #define PAGE_VALID     0x0008
 686 /* original state of the write flag (used when tracking self-modifying
 687    code */
 688 #define PAGE_WRITE_ORG 0x0010
 689
 690 void page_dump(FILE *f);
 691 int page_get_flags(target_ulong address);
 692 void page_set_flags(target_ulong start, target_ulong end, int flags);
 693 void page_unprotect_range(target_ulong data, target_ulong data_size);
 694
 695 CPUState *cpu_copy(CPUState *env);
 696
 697 void cpu_dump_state(CPUState *env, FILE *f,
 698                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
 699                     int flags);
 700 void cpu_dump_statistics (CPUState *env, FILE *f,
 701                           int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
 702                           int flags);
 703
 704 void cpu_abort(CPUState *env, const char *fmt, ...)
 705     __attribute__ ((__format__ (__printf__, 2, 3)))
 706     __attribute__ ((__noreturn__));
 707 extern CPUState *first_cpu;
 708 extern CPUState *cpu_single_env;
 709 extern int code_copy_enabled;
 710
 711 #define CPU_INTERRUPT_EXIT   0x01 /* wants exit from main loop */
 712 #define CPU_INTERRUPT_HARD   0x02 /* hardware interrupt pending */
 713 #define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
 714 #define CPU_INTERRUPT_TIMER  0x08 /* internal timer exception pending */
 715 #define CPU_INTERRUPT_FIQ    0x10 /* Fast interrupt pending.  */
 716 #define CPU_INTERRUPT_HALT   0x20 /* CPU halt wanted */
 717 #define CPU_INTERRUPT_SMI    0x40 /* (x86 only) SMI interrupt pending */
 718 #define CPU_INTERRUPT_DEBUG  0x80 /* Debug event occured.  */
 719
 720 void cpu_interrupt(CPUState *s, int mask);
 721 void cpu_reset_interrupt(CPUState *env, int mask);
 722
 723 int cpu_watchpoint_insert(CPUState *env, target_ulong addr);
 724 int cpu_watchpoint_remove(CPUState *env, target_ulong addr);
 725 int cpu_breakpoint_insert(CPUState *env, target_ulong pc);
 726 int cpu_breakpoint_remove(CPUState *env, target_ulong pc);
 727 void cpu_single_step(CPUState *env, int enabled);
 728 void cpu_reset(CPUState *s);
 729
 730 /* Return the physical page corresponding to a virtual one. Use it
 731    only for debugging because no protection checks are done. Return -1
 732    if no page found. */
 733 target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
 734
 735 #define CPU_LOG_TB_OUT_ASM (1 << 0)
 736 #define CPU_LOG_TB_IN_ASM  (1 << 1)
 737 #define CPU_LOG_TB_OP      (1 << 2)
 738 #define CPU_LOG_TB_OP_OPT  (1 << 3)
 739 #define CPU_LOG_INT        (1 << 4)
 740 #define CPU_LOG_EXEC       (1 << 5)
 741 #define CPU_LOG_PCALL      (1 << 6)
 742 #define CPU_LOG_IOPORT     (1 << 7)
 743 #define CPU_LOG_TB_CPU     (1 << 8)
 744
 745 /* define log items */
 746 typedef struct CPULogItem {
 747     int mask;
 748     const char *name;
 749     const char *help;
 750 } CPULogItem;
 751
 752 extern CPULogItem cpu_log_items[];
 753
 754 void cpu_set_log(int log_flags);
 755 void cpu_set_log_filename(const char *filename);
 756 int cpu_str_to_log_mask(const char *str);
 757
 758 /* IO ports API */
 759
 760 /* NOTE: as these functions may be even used when there is an isa
 761    brige on non x86 targets, we always defined them */
 762 #ifndef NO_CPU_IO_DEFS
 763 void cpu_outb(CPUState *env, int addr, int val);
 764 void cpu_outw(CPUState *env, int addr, int val);
 765 void cpu_outl(CPUState *env, int addr, int val);
 766 int cpu_inb(CPUState *env, int addr);
 767 int cpu_inw(CPUState *env, int addr);
 768 int cpu_inl(CPUState *env, int addr);
 769 #endif
 770
 771 /* memory API */
 772
 773 extern int phys_ram_size;
 774 extern int phys_ram_fd;
 775 extern uint8_t *phys_ram_base;
 776 extern uint8_t *phys_ram_dirty;
 777
 778 /* physical memory access */
 779 #define TLB_INVALID_MASK   (1 << 3)
 780 #define IO_MEM_SHIFT       4
 781 #define IO_MEM_NB_ENTRIES  (1 << (TARGET_PAGE_BITS  - IO_MEM_SHIFT))
 782
 783 #define IO_MEM_RAM         (0 << IO_MEM_SHIFT) /* hardcoded offset */
 784 #define IO_MEM_ROM         (1 << IO_MEM_SHIFT) /* hardcoded offset */
 785 #define IO_MEM_UNASSIGNED  (2 << IO_MEM_SHIFT)
 786 #define IO_MEM_NOTDIRTY    (4 << IO_MEM_SHIFT) /* used internally, never use directly */
 787 /* acts like a ROM when read and like a device when written. As an
 788    exception, the write memory callback gets the ram offset instead of
 789    the physical address */
 790 #define IO_MEM_ROMD        (1)
 791 #define IO_MEM_SUBPAGE     (2)
 792
 793 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
 794 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
 795
 796 void cpu_register_physical_memory(target_phys_addr_t start_addr,
 797                                   unsigned long size,
 798                                   unsigned long phys_offset);
 799 uint32_t cpu_get_physical_page_desc(target_phys_addr_t addr);
 800 ram_addr_t qemu_ram_alloc(unsigned int size);
 801 void qemu_ram_free(ram_addr_t addr);
 802 int cpu_register_io_memory(int io_index,
 803                            CPUReadMemoryFunc **mem_read,
 804                            CPUWriteMemoryFunc **mem_write,
 805                            void *opaque);
 806 CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index);
 807 CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index);
 808
 809 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
 810                             int len, int is_write);
 811 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
 812                                             uint8_t *buf, int len)
 813 {
 814     cpu_physical_memory_rw(addr, buf, len, 0);
 815 }
 816 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
 817                                              const uint8_t *buf, int len)
 818 {
 819     cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
 820 }
 821 uint32_t ldub_phys(target_phys_addr_t addr);
 822 uint32_t lduw_phys(target_phys_addr_t addr);
 823 uint32_t ldl_phys(target_phys_addr_t addr);
 824 uint64_t ldq_phys(target_phys_addr_t addr);
 825 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
 826 void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
 827 void stb_phys(target_phys_addr_t addr, uint32_t val);
 828 void stw_phys(target_phys_addr_t addr, uint32_t val);
 829 void stl_phys(target_phys_addr_t addr, uint32_t val);
 830 void stq_phys(target_phys_addr_t addr, uint64_t val);
 831
 832 void cpu_physical_memory_write_rom(target_phys_addr_t addr,
 833                                    const uint8_t *buf, int len);
 834 int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
 835                         uint8_t *buf, int len, int is_write);
 836
 837 #define VGA_DIRTY_FLAG  0x01
 838 #define CODE_DIRTY_FLAG 0x02
 839
 840 /* read dirty bit (return 0 or 1) */
 841 static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
 842 {
 843     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
 844 }
 845
 846 static inline int cpu_physical_memory_get_dirty(ram_addr_t addr,
 847                                                 int dirty_flags)
 848 {
 849     return phys_ram_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
 850 }
 851
 852 static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
 853 {
 854     phys_ram_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
 855 }
 856
 857 void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
 858                                      int dirty_flags);
 859 void cpu_tlb_update_dirty(CPUState *env);
 860
 861 void dump_exec_info(FILE *f,
 862                     int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
 863
 864 /*******************************************/
 865 /* host CPU ticks (if available) */
 866
 867 #if defined(__powerpc__)
 868
 869 static inline uint32_t get_tbl(void)
 870 {
 871     uint32_t tbl;
 872     asm volatile("mftb %0" : "=r" (tbl));
 873     return tbl;
 874 }
 875
 876 static inline uint32_t get_tbu(void)
 877 {
 878         uint32_t tbl;
 879         asm volatile("mftbu %0" : "=r" (tbl));
 880         return tbl;
 881 }
 882
 883 static inline int64_t cpu_get_real_ticks(void)
 884 {
 885     uint32_t l, h, h1;
 886     /* NOTE: we test if wrapping has occurred */
 887     do {
 888         h = get_tbu();
 889         l = get_tbl();
 890         h1 = get_tbu();
 891     } while (h != h1);
 892     return ((int64_t)h << 32) | l;
 893 }
 894
 895 #elif defined(__i386__)
 896
 897 static inline int64_t cpu_get_real_ticks(void)
 898 {
 899     int64_t val;
 900     asm volatile ("rdtsc" : "=A" (val));
 901     return val;
 902 }
 903
 904 #elif defined(__x86_64__)
 905
 906 static inline int64_t cpu_get_real_ticks(void)
 907 {
 908     uint32_t low,high;
 909     int64_t val;
 910     asm volatile("rdtsc" : "=a" (low), "=d" (high));
 911     val = high;
 912     val <<= 32;
 913     val |= low;
 914     return val;
 915 }
 916
 917 #elif defined(__ia64)
 918
 919 static inline int64_t cpu_get_real_ticks(void)
 920 {
 921         int64_t val;
 922         asm volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory");
 923         return val;
 924 }
 925
 926 #elif defined(__s390__)
 927
 928 static inline int64_t cpu_get_real_ticks(void)
 929 {
 930     int64_t val;
 931     asm volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc");
 932     return val;
 933 }
 934
 935 #elif defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__)
 936
 937 static inline int64_t cpu_get_real_ticks (void)
 938 {
 939 #if     defined(_LP64)
 940         uint64_t        rval;
 941         asm volatile("rd %%tick,%0" : "=r"(rval));
 942         return rval;
 943 #else
 944         union {
 945                 uint64_t i64;
 946                 struct {
 947                         uint32_t high;
 948                         uint32_t low;
 949                 }       i32;
 950         } rval;
 951         asm volatile("rd %%tick,%1; srlx %1,32,%0"
 952                 : "=r"(rval.i32.high), "=r"(rval.i32.low));
 953         return rval.i64;
 954 #endif
 955 }
 956
 957 #elif defined(__mips__)
 958
 959 static inline int64_t cpu_get_real_ticks(void)
 960 {
 961 #if __mips_isa_rev >= 2
 962     uint32_t count;
 963     static uint32_t cyc_per_count = 0;
 964
 965     if (!cyc_per_count)
 966         __asm__ __volatile__("rdhwr %0, $3" : "=r" (cyc_per_count));
 967
 968     __asm__ __volatile__("rdhwr %1, $2" : "=r" (count));
 969     return (int64_t)(count * cyc_per_count);
 970 #else
 971     /* FIXME */
 972     static int64_t ticks = 0;
 973     return ticks++;
 974 #endif
 975 }
 976
 977 #else
 978 /* The host CPU doesn't have an easily accessible cycle counter.
 979    Just return a monotonically increasing value.  This will be
 980    totally wrong, but hopefully better than nothing.  */
 981 static inline int64_t cpu_get_real_ticks (void)
 982 {
 983     static int64_t ticks = 0;
 984     return ticks++;
 985 }
 986 #endif
 987
 988 /* profiling */
 989 #ifdef CONFIG_PROFILER
 990 static inline int64_t profile_getclock(void)
 991 {
 992     return cpu_get_real_ticks();
 993 }
 994
 995 extern int64_t kqemu_time, kqemu_time_start;
 996 extern int64_t qemu_time, qemu_time_start;
 997 extern int64_t tlb_flush_time;
 998 extern int64_t kqemu_exec_count;
 999 extern int64_t dev_time;
1000 extern int64_t kqemu_ret_int_count;
1001 extern int64_t kqemu_ret_excp_count;
1002 extern int64_t kqemu_ret_intr_count;
1003
1004 #endif
1005
1006 #endif /* CPU_ALL_H */