arch_init.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include <stdint.h>
  25 #include <stdarg.h>
  26 #include <stdlib.h>
  27 #ifndef _WIN32
  28 #include <sys/types.h>
  29 #include <sys/mman.h>
  30 #endif
  31 #include "config.h"
  32 #include "monitor.h"
  33 #include "sysemu.h"
  34 #include "arch_init.h"
  35 #include "audio/audio.h"
  36 #include "hw/pc.h"
  37 #include "hw/pci.h"
  38 #include "hw/audiodev.h"
  39 #include "kvm.h"
  40 #include "migration.h"
  41 #include "net.h"
  42 #include "gdbstub.h"
  43 #include "hw/smbios.h"
  44 #include "exec-memory.h"
  45 #include "hw/pcspk.h"
  46
  47 #ifdef DEBUG_ARCH_INIT
  48 #define DPRINTF(fmt, ...) \
  49     do { fprintf(stdout, "arch_init: " fmt, ## __VA_ARGS__); } while (0)
  50 #else
  51 #define DPRINTF(fmt, ...) \
  52     do { } while (0)
  53 #endif
  54
  55 #ifdef TARGET_SPARC
  56 int graphic_width = 1024;
  57 int graphic_height = 768;
  58 int graphic_depth = 8;
  59 #else
  60 int graphic_width = 800;
  61 int graphic_height = 600;
  62 int graphic_depth = 15;
  63 #endif
  64
  65
  66 #if defined(TARGET_ALPHA)
  67 #define QEMU_ARCH QEMU_ARCH_ALPHA
  68 #elif defined(TARGET_ARM)
  69 #define QEMU_ARCH QEMU_ARCH_ARM
  70 #elif defined(TARGET_CRIS)
  71 #define QEMU_ARCH QEMU_ARCH_CRIS
  72 #elif defined(TARGET_I386)
  73 #define QEMU_ARCH QEMU_ARCH_I386
  74 #elif defined(TARGET_M68K)
  75 #define QEMU_ARCH QEMU_ARCH_M68K
  76 #elif defined(TARGET_LM32)
  77 #define QEMU_ARCH QEMU_ARCH_LM32
  78 #elif defined(TARGET_MICROBLAZE)
  79 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  80 #elif defined(TARGET_MIPS)
  81 #define QEMU_ARCH QEMU_ARCH_MIPS
  82 #elif defined(TARGET_PPC)
  83 #define QEMU_ARCH QEMU_ARCH_PPC
  84 #elif defined(TARGET_S390X)
  85 #define QEMU_ARCH QEMU_ARCH_S390X
  86 #elif defined(TARGET_SH4)
  87 #define QEMU_ARCH QEMU_ARCH_SH4
  88 #elif defined(TARGET_SPARC)
  89 #define QEMU_ARCH QEMU_ARCH_SPARC
  90 #elif defined(TARGET_XTENSA)
  91 #define QEMU_ARCH QEMU_ARCH_XTENSA
  92 #endif
  93
  94 const uint32_t arch_type = QEMU_ARCH;
  95
  96 /***********************************************************/
  97 /* ram save/restore */
  98
  99 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
 100 #define RAM_SAVE_FLAG_COMPRESS 0x02
 101 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
 102 #define RAM_SAVE_FLAG_PAGE     0x08
 103 #define RAM_SAVE_FLAG_EOS      0x10
 104 #define RAM_SAVE_FLAG_CONTINUE 0x20
 105
 106 #ifdef __ALTIVEC__
 107 #include <altivec.h>
 108 #define VECTYPE        vector unsigned char
 109 #define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
 110 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
 111 /* altivec.h may redefine the bool macro as vector type.
 112  * Reset it to POSIX semantics. */
 113 #undef bool
 114 #define bool _Bool
 115 #elif defined __SSE2__
 116 #include <emmintrin.h>
 117 #define VECTYPE        __m128i
 118 #define SPLAT(p)       _mm_set1_epi8(*(p))
 119 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
 120 #else
 121 #define VECTYPE        unsigned long
 122 #define SPLAT(p)       (*(p) * (~0UL / 255))
 123 #define ALL_EQ(v1, v2) ((v1) == (v2))
 124 #endif
 125
 126
 127 static struct defconfig_file {
 128     const char *filename;
 129     /* Indicates it is an user config file (disabled by -no-user-config) */
 130     bool userconfig;
 131 } default_config_files[] = {
 132     { CONFIG_QEMU_DATADIR "/cpus-" TARGET_ARCH ".conf",  false },
 133     { CONFIG_QEMU_CONFDIR "/qemu.conf",                   true },
 134     { CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", true },
 135     { NULL }, /* end of list */
 136 };
 137
 138
 139 int qemu_read_default_config_files(bool userconfig)
 140 {
 141     int ret;
 142     struct defconfig_file *f;
 143
 144     for (f = default_config_files; f->filename; f++) {
 145         if (!userconfig && f->userconfig) {
 146             continue;
 147         }
 148         ret = qemu_read_config_file(f->filename);
 149         if (ret < 0 && ret != -ENOENT) {
 150             return ret;
 151         }
 152     }
 153
 154     return 0;
 155 }
 156
 157 static int is_dup_page(uint8_t *page)
 158 {
 159     VECTYPE *p = (VECTYPE *)page;
 160     VECTYPE val = SPLAT(page);
 161     int i;
 162
 163     for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
 164         if (!ALL_EQ(val, p[i])) {
 165             return 0;
 166         }
 167     }
 168
 169     return 1;
 170 }
 171
 172 static void save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset,
 173         int cont, int flag)
 174 {
 175         qemu_put_be64(f, offset | cont | flag);
 176         if (!cont) {
 177                 qemu_put_byte(f, strlen(block->idstr));
 178                 qemu_put_buffer(f, (uint8_t *)block->idstr,
 179                                 strlen(block->idstr));
 180         }
 181
 182 }
 183
 184 static RAMBlock *last_block;
 185 static ram_addr_t last_offset;
 186
 187 static int ram_save_block(QEMUFile *f)
 188 {
 189     RAMBlock *block = last_block;
 190     ram_addr_t offset = last_offset;
 191     int bytes_sent = 0;
 192     MemoryRegion *mr;
 193
 194     if (!block)
 195         block = QLIST_FIRST(&ram_list.blocks);
 196
 197     do {
 198         mr = block->mr;
 199         if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE,
 200                                     DIRTY_MEMORY_MIGRATION)) {
 201             uint8_t *p;
 202             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 203
 204             memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
 205                                       DIRTY_MEMORY_MIGRATION);
 206
 207             p = memory_region_get_ram_ptr(mr) + offset;
 208
 209             if (is_dup_page(p)) {
 210                 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS);
 211                 qemu_put_byte(f, *p);
 212                 bytes_sent = 1;
 213             } else {
 214                 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
 215                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 216                 bytes_sent = TARGET_PAGE_SIZE;
 217             }
 218
 219             break;
 220         }
 221
 222         offset += TARGET_PAGE_SIZE;
 223         if (offset >= block->length) {
 224             offset = 0;
 225             block = QLIST_NEXT(block, next);
 226             if (!block)
 227                 block = QLIST_FIRST(&ram_list.blocks);
 228         }
 229     } while (block != last_block || offset != last_offset);
 230
 231     last_block = block;
 232     last_offset = offset;
 233
 234     return bytes_sent;
 235 }
 236
 237 static uint64_t bytes_transferred;
 238
 239 static ram_addr_t ram_save_remaining(void)
 240 {
 241     return ram_list.dirty_pages;
 242 }
 243
 244 uint64_t ram_bytes_remaining(void)
 245 {
 246     return ram_save_remaining() * TARGET_PAGE_SIZE;
 247 }
 248
 249 uint64_t ram_bytes_transferred(void)
 250 {
 251     return bytes_transferred;
 252 }
 253
 254 uint64_t ram_bytes_total(void)
 255 {
 256     RAMBlock *block;
 257     uint64_t total = 0;
 258
 259     QLIST_FOREACH(block, &ram_list.blocks, next)
 260         total += block->length;
 261
 262     return total;
 263 }
 264
 265 static int block_compar(const void *a, const void *b)
 266 {
 267     RAMBlock * const *ablock = a;
 268     RAMBlock * const *bblock = b;
 269
 270     return strcmp((*ablock)->idstr, (*bblock)->idstr);
 271 }
 272
 273 static void sort_ram_list(void)
 274 {
 275     RAMBlock *block, *nblock, **blocks;
 276     int n;
 277     n = 0;
 278     QLIST_FOREACH(block, &ram_list.blocks, next) {
 279         ++n;
 280     }
 281     blocks = g_malloc(n * sizeof *blocks);
 282     n = 0;
 283     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 284         blocks[n++] = block;
 285         QLIST_REMOVE(block, next);
 286     }
 287     qsort(blocks, n, sizeof *blocks, block_compar);
 288     while (--n >= 0) {
 289         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 290     }
 291     g_free(blocks);
 292 }
 293
 294 static void migration_end(void)
 295 {
 296     memory_global_dirty_log_stop();
 297 }
 298
 299 #define MAX_WAIT 50 /* ms, half buffered_file limit */
 300
 301 int ram_save_live(QEMUFile *f, int stage, void *opaque)
 302 {
 303     ram_addr_t addr;
 304     uint64_t bytes_transferred_last;
 305     double bwidth = 0;
 306     int ret;
 307     int i;
 308
 309     if (stage < 0) {
 310         migration_end();
 311         return 0;
 312     }
 313
 314     memory_global_sync_dirty_bitmap(get_system_memory());
 315
 316     if (stage == 1) {
 317         RAMBlock *block;
 318         bytes_transferred = 0;
 319         last_block = NULL;
 320         last_offset = 0;
 321         sort_ram_list();
 322
 323         /* Make sure all dirty bits are set */
 324         QLIST_FOREACH(block, &ram_list.blocks, next) {
 325             for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 326                 if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 327                                              DIRTY_MEMORY_MIGRATION)) {
 328                     memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
 329                 }
 330             }
 331         }
 332
 333         memory_global_dirty_log_start();
 334
 335         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 336
 337         QLIST_FOREACH(block, &ram_list.blocks, next) {
 338             qemu_put_byte(f, strlen(block->idstr));
 339             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 340             qemu_put_be64(f, block->length);
 341         }
 342     }
 343
 344     bytes_transferred_last = bytes_transferred;
 345     bwidth = qemu_get_clock_ns(rt_clock);
 346
 347     i = 0;
 348     while ((ret = qemu_file_rate_limit(f)) == 0) {
 349         int bytes_sent;
 350
 351         bytes_sent = ram_save_block(f);
 352         bytes_transferred += bytes_sent;
 353         if (bytes_sent == 0) { /* no more blocks */
 354             break;
 355         }
 356         /* we want to check in the 1st loop, just in case it was the 1st time
 357            and we had to sync the dirty bitmap.
 358            qemu_get_clock_ns() is a bit expensive, so we only check each some
 359            iterations
 360         */
 361         if ((i & 63) == 0) {
 362             uint64_t t1 = (qemu_get_clock_ns(rt_clock) - bwidth) / 1000000;
 363             if (t1 > MAX_WAIT) {
 364                 DPRINTF("big wait: " PRIu64 " milliseconds, %d iterations\n",
 365                         t1, i);
 366                 break;
 367             }
 368         }
 369         i++;
 370     }
 371
 372     if (ret < 0) {
 373         return ret;
 374     }
 375
 376     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 377     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 378
 379     /* if we haven't transferred anything this round, force expected_time to a
 380      * a very high value, but without crashing */
 381     if (bwidth == 0) {
 382         bwidth = 0.000001;
 383     }
 384
 385     /* try transferring iterative blocks of memory */
 386     if (stage == 3) {
 387         int bytes_sent;
 388
 389         /* flush all remaining blocks regardless of rate limiting */
 390         while ((bytes_sent = ram_save_block(f)) != 0) {
 391             bytes_transferred += bytes_sent;
 392         }
 393         memory_global_dirty_log_stop();
 394     }
 395
 396     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 397
 398     if (stage == 2) {
 399         uint64_t expected_time;
 400         expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 401
 402         DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
 403                 expected_time, migrate_max_downtime());
 404
 405         return expected_time <= migrate_max_downtime();
 406     }
 407     return 0;
 408 }
 409
 410 static inline void *host_from_stream_offset(QEMUFile *f,
 411                                             ram_addr_t offset,
 412                                             int flags)
 413 {
 414     static RAMBlock *block = NULL;
 415     char id[256];
 416     uint8_t len;
 417
 418     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 419         if (!block) {
 420             fprintf(stderr, "Ack, bad migration stream!\n");
 421             return NULL;
 422         }
 423
 424         return memory_region_get_ram_ptr(block->mr) + offset;
 425     }
 426
 427     len = qemu_get_byte(f);
 428     qemu_get_buffer(f, (uint8_t *)id, len);
 429     id[len] = 0;
 430
 431     QLIST_FOREACH(block, &ram_list.blocks, next) {
 432         if (!strncmp(id, block->idstr, sizeof(id)))
 433             return memory_region_get_ram_ptr(block->mr) + offset;
 434     }
 435
 436     fprintf(stderr, "Can't find block %s!\n", id);
 437     return NULL;
 438 }
 439
 440 int ram_load(QEMUFile *f, void *opaque, int version_id)
 441 {
 442     ram_addr_t addr;
 443     int flags, ret = 0;
 444     int error;
 445     static uint64_t seq_iter;
 446
 447     seq_iter++;
 448
 449     if (version_id < 4 || version_id > 4) {
 450         return -EINVAL;
 451     }
 452
 453     do {
 454         addr = qemu_get_be64(f);
 455
 456         flags = addr & ~TARGET_PAGE_MASK;
 457         addr &= TARGET_PAGE_MASK;
 458
 459         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 460             if (version_id == 4) {
 461                 /* Synchronize RAM block list */
 462                 char id[256];
 463                 ram_addr_t length;
 464                 ram_addr_t total_ram_bytes = addr;
 465
 466                 while (total_ram_bytes) {
 467                     RAMBlock *block;
 468                     uint8_t len;
 469
 470                     len = qemu_get_byte(f);
 471                     qemu_get_buffer(f, (uint8_t *)id, len);
 472                     id[len] = 0;
 473                     length = qemu_get_be64(f);
 474
 475                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 476                         if (!strncmp(id, block->idstr, sizeof(id))) {
 477                             if (block->length != length) {
 478                                 ret =  -EINVAL;
 479                                 goto done;
 480                             }
 481                             break;
 482                         }
 483                     }
 484
 485                     if (!block) {
 486                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 487                                 "accept migration\n", id);
 488                         ret = -EINVAL;
 489                         goto done;
 490                     }
 491
 492                     total_ram_bytes -= length;
 493                 }
 494             }
 495         }
 496
 497         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 498             void *host;
 499             uint8_t ch;
 500
 501             host = host_from_stream_offset(f, addr, flags);
 502             if (!host) {
 503                 return -EINVAL;
 504             }
 505
 506             ch = qemu_get_byte(f);
 507             memset(host, ch, TARGET_PAGE_SIZE);
 508 #ifndef _WIN32
 509             if (ch == 0 &&
 510                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 511                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 512             }
 513 #endif
 514         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 515             void *host;
 516
 517             host = host_from_stream_offset(f, addr, flags);
 518             if (!host) {
 519                 return -EINVAL;
 520             }
 521
 522             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 523         }
 524         error = qemu_file_get_error(f);
 525         if (error) {
 526             ret = error;
 527             goto done;
 528         }
 529     } while (!(flags & RAM_SAVE_FLAG_EOS));
 530
 531 done:
 532     DPRINTF("Completed load of VM with exit code %d seq iteration " PRIu64 "\n",
 533             ret, seq_iter);
 534     return ret;
 535 }
 536
 537 #ifdef HAS_AUDIO
 538 struct soundhw {
 539     const char *name;
 540     const char *descr;
 541     int enabled;
 542     int isa;
 543     union {
 544         int (*init_isa) (ISABus *bus);
 545         int (*init_pci) (PCIBus *bus);
 546     } init;
 547 };
 548
 549 static struct soundhw soundhw[] = {
 550 #ifdef HAS_AUDIO_CHOICE
 551 #ifdef CONFIG_PCSPK
 552     {
 553         "pcspk",
 554         "PC speaker",
 555         0,
 556         1,
 557         { .init_isa = pcspk_audio_init }
 558     },
 559 #endif
 560
 561 #ifdef CONFIG_SB16
 562     {
 563         "sb16",
 564         "Creative Sound Blaster 16",
 565         0,
 566         1,
 567         { .init_isa = SB16_init }
 568     },
 569 #endif
 570
 571 #ifdef CONFIG_CS4231A
 572     {
 573         "cs4231a",
 574         "CS4231A",
 575         0,
 576         1,
 577         { .init_isa = cs4231a_init }
 578     },
 579 #endif
 580
 581 #ifdef CONFIG_ADLIB
 582     {
 583         "adlib",
 584 #ifdef HAS_YMF262
 585         "Yamaha YMF262 (OPL3)",
 586 #else
 587         "Yamaha YM3812 (OPL2)",
 588 #endif
 589         0,
 590         1,
 591         { .init_isa = Adlib_init }
 592     },
 593 #endif
 594
 595 #ifdef CONFIG_GUS
 596     {
 597         "gus",
 598         "Gravis Ultrasound GF1",
 599         0,
 600         1,
 601         { .init_isa = GUS_init }
 602     },
 603 #endif
 604
 605 #ifdef CONFIG_AC97
 606     {
 607         "ac97",
 608         "Intel 82801AA AC97 Audio",
 609         0,
 610         0,
 611         { .init_pci = ac97_init }
 612     },
 613 #endif
 614
 615 #ifdef CONFIG_ES1370
 616     {
 617         "es1370",
 618         "ENSONIQ AudioPCI ES1370",
 619         0,
 620         0,
 621         { .init_pci = es1370_init }
 622     },
 623 #endif
 624
 625 #ifdef CONFIG_HDA
 626     {
 627         "hda",
 628         "Intel HD Audio",
 629         0,
 630         0,
 631         { .init_pci = intel_hda_and_codec_init }
 632     },
 633 #endif
 634
 635 #endif /* HAS_AUDIO_CHOICE */
 636
 637     { NULL, NULL, 0, 0, { NULL } }
 638 };
 639
 640 void select_soundhw(const char *optarg)
 641 {
 642     struct soundhw *c;
 643
 644     if (*optarg == '?') {
 645     show_valid_cards:
 646
 647         printf("Valid sound card names (comma separated):\n");
 648         for (c = soundhw; c->name; ++c) {
 649             printf ("%-11s %s\n", c->name, c->descr);
 650         }
 651         printf("\n-soundhw all will enable all of the above\n");
 652         exit(*optarg != '?');
 653     }
 654     else {
 655         size_t l;
 656         const char *p;
 657         char *e;
 658         int bad_card = 0;
 659
 660         if (!strcmp(optarg, "all")) {
 661             for (c = soundhw; c->name; ++c) {
 662                 c->enabled = 1;
 663             }
 664             return;
 665         }
 666
 667         p = optarg;
 668         while (*p) {
 669             e = strchr(p, ',');
 670             l = !e ? strlen(p) : (size_t) (e - p);
 671
 672             for (c = soundhw; c->name; ++c) {
 673                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 674                     c->enabled = 1;
 675                     break;
 676                 }
 677             }
 678
 679             if (!c->name) {
 680                 if (l > 80) {
 681                     fprintf(stderr,
 682                             "Unknown sound card name (too big to show)\n");
 683                 }
 684                 else {
 685                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 686                             (int) l, p);
 687                 }
 688                 bad_card = 1;
 689             }
 690             p += l + (e != NULL);
 691         }
 692
 693         if (bad_card) {
 694             goto show_valid_cards;
 695         }
 696     }
 697 }
 698
 699 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 700 {
 701     struct soundhw *c;
 702
 703     for (c = soundhw; c->name; ++c) {
 704         if (c->enabled) {
 705             if (c->isa) {
 706                 if (isa_bus) {
 707                     c->init.init_isa(isa_bus);
 708                 }
 709             } else {
 710                 if (pci_bus) {
 711                     c->init.init_pci(pci_bus);
 712                 }
 713             }
 714         }
 715     }
 716 }
 717 #else
 718 void select_soundhw(const char *optarg)
 719 {
 720 }
 721 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 722 {
 723 }
 724 #endif
 725
 726 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 727 {
 728     int ret;
 729
 730     if (strlen(str) != 36) {
 731         return -1;
 732     }
 733
 734     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 735                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 736                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 737                  &uuid[15]);
 738
 739     if (ret != 16) {
 740         return -1;
 741     }
 742 #ifdef TARGET_I386
 743     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 744 #endif
 745     return 0;
 746 }
 747
 748 void do_acpitable_option(const char *optarg)
 749 {
 750 #ifdef TARGET_I386
 751     if (acpi_table_add(optarg) < 0) {
 752         fprintf(stderr, "Wrong acpi table provided\n");
 753         exit(1);
 754     }
 755 #endif
 756 }
 757
 758 void do_smbios_option(const char *optarg)
 759 {
 760 #ifdef TARGET_I386
 761     if (smbios_entry_add(optarg) < 0) {
 762         fprintf(stderr, "Wrong smbios provided\n");
 763         exit(1);
 764     }
 765 #endif
 766 }
 767
 768 void cpudef_init(void)
 769 {
 770 #if defined(cpudef_setup)
 771     cpudef_setup(); /* parse cpu definitions in target config file */
 772 #endif
 773 }
 774
 775 int audio_available(void)
 776 {
 777 #ifdef HAS_AUDIO
 778     return 1;
 779 #else
 780     return 0;
 781 #endif
 782 }
 783
 784 int tcg_available(void)
 785 {
 786     return 1;
 787 }
 788
 789 int kvm_available(void)
 790 {
 791 #ifdef CONFIG_KVM
 792     return 1;
 793 #else
 794     return 0;
 795 #endif
 796 }
 797
 798 int xen_available(void)
 799 {
 800 #ifdef CONFIG_XEN
 801     return 1;
 802 #else
 803     return 0;
 804 #endif
 805 }