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     RAMBlock *block;
 242     ram_addr_t count = 0;
 243
 244     QLIST_FOREACH(block, &ram_list.blocks, next) {
 245         ram_addr_t addr;
 246         for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 247             if (memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 248                                         DIRTY_MEMORY_MIGRATION)) {
 249                 count++;
 250             }
 251         }
 252     }
 253
 254     return count;
 255 }
 256
 257 uint64_t ram_bytes_remaining(void)
 258 {
 259     return ram_save_remaining() * TARGET_PAGE_SIZE;
 260 }
 261
 262 uint64_t ram_bytes_transferred(void)
 263 {
 264     return bytes_transferred;
 265 }
 266
 267 uint64_t ram_bytes_total(void)
 268 {
 269     RAMBlock *block;
 270     uint64_t total = 0;
 271
 272     QLIST_FOREACH(block, &ram_list.blocks, next)
 273         total += block->length;
 274
 275     return total;
 276 }
 277
 278 static int block_compar(const void *a, const void *b)
 279 {
 280     RAMBlock * const *ablock = a;
 281     RAMBlock * const *bblock = b;
 282
 283     return strcmp((*ablock)->idstr, (*bblock)->idstr);
 284 }
 285
 286 static void sort_ram_list(void)
 287 {
 288     RAMBlock *block, *nblock, **blocks;
 289     int n;
 290     n = 0;
 291     QLIST_FOREACH(block, &ram_list.blocks, next) {
 292         ++n;
 293     }
 294     blocks = g_malloc(n * sizeof *blocks);
 295     n = 0;
 296     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 297         blocks[n++] = block;
 298         QLIST_REMOVE(block, next);
 299     }
 300     qsort(blocks, n, sizeof *blocks, block_compar);
 301     while (--n >= 0) {
 302         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 303     }
 304     g_free(blocks);
 305 }
 306
 307 static void migration_end(void)
 308 {
 309     memory_global_dirty_log_stop();
 310 }
 311
 312 #define MAX_WAIT 50 /* ms, half buffered_file limit */
 313
 314 int ram_save_live(QEMUFile *f, int stage, void *opaque)
 315 {
 316     ram_addr_t addr;
 317     uint64_t bytes_transferred_last;
 318     double bwidth = 0;
 319     int ret;
 320     int i;
 321
 322     if (stage < 0) {
 323         migration_end();
 324         return 0;
 325     }
 326
 327     memory_global_sync_dirty_bitmap(get_system_memory());
 328
 329     if (stage == 1) {
 330         RAMBlock *block;
 331         bytes_transferred = 0;
 332         last_block = NULL;
 333         last_offset = 0;
 334         sort_ram_list();
 335
 336         /* Make sure all dirty bits are set */
 337         QLIST_FOREACH(block, &ram_list.blocks, next) {
 338             for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 339                 if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 340                                              DIRTY_MEMORY_MIGRATION)) {
 341                     memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
 342                 }
 343             }
 344         }
 345
 346         memory_global_dirty_log_start();
 347
 348         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 349
 350         QLIST_FOREACH(block, &ram_list.blocks, next) {
 351             qemu_put_byte(f, strlen(block->idstr));
 352             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 353             qemu_put_be64(f, block->length);
 354         }
 355     }
 356
 357     bytes_transferred_last = bytes_transferred;
 358     bwidth = qemu_get_clock_ns(rt_clock);
 359
 360     i = 0;
 361     while ((ret = qemu_file_rate_limit(f)) == 0) {
 362         int bytes_sent;
 363
 364         bytes_sent = ram_save_block(f);
 365         bytes_transferred += bytes_sent;
 366         if (bytes_sent == 0) { /* no more blocks */
 367             break;
 368         }
 369         /* we want to check in the 1st loop, just in case it was the 1st time
 370            and we had to sync the dirty bitmap.
 371            qemu_get_clock_ns() is a bit expensive, so we only check each some
 372            iterations
 373         */
 374         if ((i & 63) == 0) {
 375             uint64_t t1 = (qemu_get_clock_ns(rt_clock) - bwidth) / 1000000;
 376             if (t1 > MAX_WAIT) {
 377                 DPRINTF("big wait: " PRIu64 " milliseconds, %d iterations\n",
 378                         t1, i);
 379                 break;
 380             }
 381         }
 382         i++;
 383     }
 384
 385     if (ret < 0) {
 386         return ret;
 387     }
 388
 389     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 390     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 391
 392     /* if we haven't transferred anything this round, force expected_time to a
 393      * a very high value, but without crashing */
 394     if (bwidth == 0) {
 395         bwidth = 0.000001;
 396     }
 397
 398     /* try transferring iterative blocks of memory */
 399     if (stage == 3) {
 400         int bytes_sent;
 401
 402         /* flush all remaining blocks regardless of rate limiting */
 403         while ((bytes_sent = ram_save_block(f)) != 0) {
 404             bytes_transferred += bytes_sent;
 405         }
 406         memory_global_dirty_log_stop();
 407     }
 408
 409     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 410
 411     if (stage == 2) {
 412         uint64_t expected_time;
 413         expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 414
 415         DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
 416                 expected_time, migrate_max_downtime());
 417
 418         return expected_time <= migrate_max_downtime();
 419     }
 420     return 0;
 421 }
 422
 423 static inline void *host_from_stream_offset(QEMUFile *f,
 424                                             ram_addr_t offset,
 425                                             int flags)
 426 {
 427     static RAMBlock *block = NULL;
 428     char id[256];
 429     uint8_t len;
 430
 431     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 432         if (!block) {
 433             fprintf(stderr, "Ack, bad migration stream!\n");
 434             return NULL;
 435         }
 436
 437         return memory_region_get_ram_ptr(block->mr) + offset;
 438     }
 439
 440     len = qemu_get_byte(f);
 441     qemu_get_buffer(f, (uint8_t *)id, len);
 442     id[len] = 0;
 443
 444     QLIST_FOREACH(block, &ram_list.blocks, next) {
 445         if (!strncmp(id, block->idstr, sizeof(id)))
 446             return memory_region_get_ram_ptr(block->mr) + offset;
 447     }
 448
 449     fprintf(stderr, "Can't find block %s!\n", id);
 450     return NULL;
 451 }
 452
 453 int ram_load(QEMUFile *f, void *opaque, int version_id)
 454 {
 455     ram_addr_t addr;
 456     int flags, ret = 0;
 457     int error;
 458     static uint64_t seq_iter;
 459
 460     seq_iter++;
 461
 462     if (version_id < 4 || version_id > 4) {
 463         return -EINVAL;
 464     }
 465
 466     do {
 467         addr = qemu_get_be64(f);
 468
 469         flags = addr & ~TARGET_PAGE_MASK;
 470         addr &= TARGET_PAGE_MASK;
 471
 472         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 473             if (version_id == 4) {
 474                 /* Synchronize RAM block list */
 475                 char id[256];
 476                 ram_addr_t length;
 477                 ram_addr_t total_ram_bytes = addr;
 478
 479                 while (total_ram_bytes) {
 480                     RAMBlock *block;
 481                     uint8_t len;
 482
 483                     len = qemu_get_byte(f);
 484                     qemu_get_buffer(f, (uint8_t *)id, len);
 485                     id[len] = 0;
 486                     length = qemu_get_be64(f);
 487
 488                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 489                         if (!strncmp(id, block->idstr, sizeof(id))) {
 490                             if (block->length != length) {
 491                                 ret =  -EINVAL;
 492                                 goto done;
 493                             }
 494                             break;
 495                         }
 496                     }
 497
 498                     if (!block) {
 499                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 500                                 "accept migration\n", id);
 501                         ret = -EINVAL;
 502                         goto done;
 503                     }
 504
 505                     total_ram_bytes -= length;
 506                 }
 507             }
 508         }
 509
 510         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 511             void *host;
 512             uint8_t ch;
 513
 514             host = host_from_stream_offset(f, addr, flags);
 515             if (!host) {
 516                 return -EINVAL;
 517             }
 518
 519             ch = qemu_get_byte(f);
 520             memset(host, ch, TARGET_PAGE_SIZE);
 521 #ifndef _WIN32
 522             if (ch == 0 &&
 523                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 524                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 525             }
 526 #endif
 527         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 528             void *host;
 529
 530             host = host_from_stream_offset(f, addr, flags);
 531             if (!host) {
 532                 return -EINVAL;
 533             }
 534
 535             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 536         }
 537         error = qemu_file_get_error(f);
 538         if (error) {
 539             ret = error;
 540             goto done;
 541         }
 542     } while (!(flags & RAM_SAVE_FLAG_EOS));
 543
 544 done:
 545     DPRINTF("Completed load of VM with exit code %d seq iteration " PRIu64 "\n",
 546             ret, seq_iter);
 547     return ret;
 548 }
 549
 550 #ifdef HAS_AUDIO
 551 struct soundhw {
 552     const char *name;
 553     const char *descr;
 554     int enabled;
 555     int isa;
 556     union {
 557         int (*init_isa) (ISABus *bus);
 558         int (*init_pci) (PCIBus *bus);
 559     } init;
 560 };
 561
 562 static struct soundhw soundhw[] = {
 563 #ifdef HAS_AUDIO_CHOICE
 564 #ifdef CONFIG_PCSPK
 565     {
 566         "pcspk",
 567         "PC speaker",
 568         0,
 569         1,
 570         { .init_isa = pcspk_audio_init }
 571     },
 572 #endif
 573
 574 #ifdef CONFIG_SB16
 575     {
 576         "sb16",
 577         "Creative Sound Blaster 16",
 578         0,
 579         1,
 580         { .init_isa = SB16_init }
 581     },
 582 #endif
 583
 584 #ifdef CONFIG_CS4231A
 585     {
 586         "cs4231a",
 587         "CS4231A",
 588         0,
 589         1,
 590         { .init_isa = cs4231a_init }
 591     },
 592 #endif
 593
 594 #ifdef CONFIG_ADLIB
 595     {
 596         "adlib",
 597 #ifdef HAS_YMF262
 598         "Yamaha YMF262 (OPL3)",
 599 #else
 600         "Yamaha YM3812 (OPL2)",
 601 #endif
 602         0,
 603         1,
 604         { .init_isa = Adlib_init }
 605     },
 606 #endif
 607
 608 #ifdef CONFIG_GUS
 609     {
 610         "gus",
 611         "Gravis Ultrasound GF1",
 612         0,
 613         1,
 614         { .init_isa = GUS_init }
 615     },
 616 #endif
 617
 618 #ifdef CONFIG_AC97
 619     {
 620         "ac97",
 621         "Intel 82801AA AC97 Audio",
 622         0,
 623         0,
 624         { .init_pci = ac97_init }
 625     },
 626 #endif
 627
 628 #ifdef CONFIG_ES1370
 629     {
 630         "es1370",
 631         "ENSONIQ AudioPCI ES1370",
 632         0,
 633         0,
 634         { .init_pci = es1370_init }
 635     },
 636 #endif
 637
 638 #ifdef CONFIG_HDA
 639     {
 640         "hda",
 641         "Intel HD Audio",
 642         0,
 643         0,
 644         { .init_pci = intel_hda_and_codec_init }
 645     },
 646 #endif
 647
 648 #endif /* HAS_AUDIO_CHOICE */
 649
 650     { NULL, NULL, 0, 0, { NULL } }
 651 };
 652
 653 void select_soundhw(const char *optarg)
 654 {
 655     struct soundhw *c;
 656
 657     if (*optarg == '?') {
 658     show_valid_cards:
 659
 660         printf("Valid sound card names (comma separated):\n");
 661         for (c = soundhw; c->name; ++c) {
 662             printf ("%-11s %s\n", c->name, c->descr);
 663         }
 664         printf("\n-soundhw all will enable all of the above\n");
 665         exit(*optarg != '?');
 666     }
 667     else {
 668         size_t l;
 669         const char *p;
 670         char *e;
 671         int bad_card = 0;
 672
 673         if (!strcmp(optarg, "all")) {
 674             for (c = soundhw; c->name; ++c) {
 675                 c->enabled = 1;
 676             }
 677             return;
 678         }
 679
 680         p = optarg;
 681         while (*p) {
 682             e = strchr(p, ',');
 683             l = !e ? strlen(p) : (size_t) (e - p);
 684
 685             for (c = soundhw; c->name; ++c) {
 686                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 687                     c->enabled = 1;
 688                     break;
 689                 }
 690             }
 691
 692             if (!c->name) {
 693                 if (l > 80) {
 694                     fprintf(stderr,
 695                             "Unknown sound card name (too big to show)\n");
 696                 }
 697                 else {
 698                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 699                             (int) l, p);
 700                 }
 701                 bad_card = 1;
 702             }
 703             p += l + (e != NULL);
 704         }
 705
 706         if (bad_card) {
 707             goto show_valid_cards;
 708         }
 709     }
 710 }
 711
 712 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 713 {
 714     struct soundhw *c;
 715
 716     for (c = soundhw; c->name; ++c) {
 717         if (c->enabled) {
 718             if (c->isa) {
 719                 if (isa_bus) {
 720                     c->init.init_isa(isa_bus);
 721                 }
 722             } else {
 723                 if (pci_bus) {
 724                     c->init.init_pci(pci_bus);
 725                 }
 726             }
 727         }
 728     }
 729 }
 730 #else
 731 void select_soundhw(const char *optarg)
 732 {
 733 }
 734 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 735 {
 736 }
 737 #endif
 738
 739 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 740 {
 741     int ret;
 742
 743     if (strlen(str) != 36) {
 744         return -1;
 745     }
 746
 747     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 748                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 749                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 750                  &uuid[15]);
 751
 752     if (ret != 16) {
 753         return -1;
 754     }
 755 #ifdef TARGET_I386
 756     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 757 #endif
 758     return 0;
 759 }
 760
 761 void do_acpitable_option(const char *optarg)
 762 {
 763 #ifdef TARGET_I386
 764     if (acpi_table_add(optarg) < 0) {
 765         fprintf(stderr, "Wrong acpi table provided\n");
 766         exit(1);
 767     }
 768 #endif
 769 }
 770
 771 void do_smbios_option(const char *optarg)
 772 {
 773 #ifdef TARGET_I386
 774     if (smbios_entry_add(optarg) < 0) {
 775         fprintf(stderr, "Wrong smbios provided\n");
 776         exit(1);
 777     }
 778 #endif
 779 }
 780
 781 void cpudef_init(void)
 782 {
 783 #if defined(cpudef_setup)
 784     cpudef_setup(); /* parse cpu definitions in target config file */
 785 #endif
 786 }
 787
 788 int audio_available(void)
 789 {
 790 #ifdef HAS_AUDIO
 791     return 1;
 792 #else
 793     return 0;
 794 #endif
 795 }
 796
 797 int tcg_available(void)
 798 {
 799     return 1;
 800 }
 801
 802 int kvm_available(void)
 803 {
 804 #ifdef CONFIG_KVM
 805     return 1;
 806 #else
 807     return 0;
 808 #endif
 809 }
 810
 811 int xen_available(void)
 812 {
 813 #ifdef CONFIG_XEN
 814     return 1;
 815 #else
 816     return 0;
 817 #endif
 818 }