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_OPENRISC)
  83 #define QEMU_ARCH QEMU_ARCH_OPENRISC
  84 #elif defined(TARGET_PPC)
  85 #define QEMU_ARCH QEMU_ARCH_PPC
  86 #elif defined(TARGET_S390X)
  87 #define QEMU_ARCH QEMU_ARCH_S390X
  88 #elif defined(TARGET_SH4)
  89 #define QEMU_ARCH QEMU_ARCH_SH4
  90 #elif defined(TARGET_SPARC)
  91 #define QEMU_ARCH QEMU_ARCH_SPARC
  92 #elif defined(TARGET_XTENSA)
  93 #define QEMU_ARCH QEMU_ARCH_XTENSA
  94 #endif
  95
  96 const uint32_t arch_type = QEMU_ARCH;
  97
  98 /***********************************************************/
  99 /* ram save/restore */
 100
 101 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
 102 #define RAM_SAVE_FLAG_COMPRESS 0x02
 103 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
 104 #define RAM_SAVE_FLAG_PAGE     0x08
 105 #define RAM_SAVE_FLAG_EOS      0x10
 106 #define RAM_SAVE_FLAG_CONTINUE 0x20
 107
 108 #ifdef __ALTIVEC__
 109 #include <altivec.h>
 110 #define VECTYPE        vector unsigned char
 111 #define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
 112 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
 113 /* altivec.h may redefine the bool macro as vector type.
 114  * Reset it to POSIX semantics. */
 115 #undef bool
 116 #define bool _Bool
 117 #elif defined __SSE2__
 118 #include <emmintrin.h>
 119 #define VECTYPE        __m128i
 120 #define SPLAT(p)       _mm_set1_epi8(*(p))
 121 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
 122 #else
 123 #define VECTYPE        unsigned long
 124 #define SPLAT(p)       (*(p) * (~0UL / 255))
 125 #define ALL_EQ(v1, v2) ((v1) == (v2))
 126 #endif
 127
 128
 129 static struct defconfig_file {
 130     const char *filename;
 131     /* Indicates it is an user config file (disabled by -no-user-config) */
 132     bool userconfig;
 133 } default_config_files[] = {
 134     { CONFIG_QEMU_DATADIR "/cpus-" TARGET_ARCH ".conf",  false },
 135     { CONFIG_QEMU_CONFDIR "/qemu.conf",                   true },
 136     { CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", true },
 137     { NULL }, /* end of list */
 138 };
 139
 140
 141 int qemu_read_default_config_files(bool userconfig)
 142 {
 143     int ret;
 144     struct defconfig_file *f;
 145
 146     for (f = default_config_files; f->filename; f++) {
 147         if (!userconfig && f->userconfig) {
 148             continue;
 149         }
 150         ret = qemu_read_config_file(f->filename);
 151         if (ret < 0 && ret != -ENOENT) {
 152             return ret;
 153         }
 154     }
 155
 156     return 0;
 157 }
 158
 159 static int is_dup_page(uint8_t *page)
 160 {
 161     VECTYPE *p = (VECTYPE *)page;
 162     VECTYPE val = SPLAT(page);
 163     int i;
 164
 165     for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
 166         if (!ALL_EQ(val, p[i])) {
 167             return 0;
 168         }
 169     }
 170
 171     return 1;
 172 }
 173
 174 static void save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset,
 175         int cont, int flag)
 176 {
 177         qemu_put_be64(f, offset | cont | flag);
 178         if (!cont) {
 179                 qemu_put_byte(f, strlen(block->idstr));
 180                 qemu_put_buffer(f, (uint8_t *)block->idstr,
 181                                 strlen(block->idstr));
 182         }
 183
 184 }
 185
 186 static RAMBlock *last_block;
 187 static ram_addr_t last_offset;
 188
 189 static int ram_save_block(QEMUFile *f)
 190 {
 191     RAMBlock *block = last_block;
 192     ram_addr_t offset = last_offset;
 193     int bytes_sent = 0;
 194     MemoryRegion *mr;
 195
 196     if (!block)
 197         block = QLIST_FIRST(&ram_list.blocks);
 198
 199     do {
 200         mr = block->mr;
 201         if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE,
 202                                     DIRTY_MEMORY_MIGRATION)) {
 203             uint8_t *p;
 204             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 205
 206             memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
 207                                       DIRTY_MEMORY_MIGRATION);
 208
 209             p = memory_region_get_ram_ptr(mr) + offset;
 210
 211             if (is_dup_page(p)) {
 212                 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS);
 213                 qemu_put_byte(f, *p);
 214                 bytes_sent = 1;
 215             } else {
 216                 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
 217                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 218                 bytes_sent = TARGET_PAGE_SIZE;
 219             }
 220
 221             break;
 222         }
 223
 224         offset += TARGET_PAGE_SIZE;
 225         if (offset >= block->length) {
 226             offset = 0;
 227             block = QLIST_NEXT(block, next);
 228             if (!block)
 229                 block = QLIST_FIRST(&ram_list.blocks);
 230         }
 231     } while (block != last_block || offset != last_offset);
 232
 233     last_block = block;
 234     last_offset = offset;
 235
 236     return bytes_sent;
 237 }
 238
 239 static uint64_t bytes_transferred;
 240
 241 static ram_addr_t ram_save_remaining(void)
 242 {
 243     return ram_list.dirty_pages;
 244 }
 245
 246 uint64_t ram_bytes_remaining(void)
 247 {
 248     return ram_save_remaining() * TARGET_PAGE_SIZE;
 249 }
 250
 251 uint64_t ram_bytes_transferred(void)
 252 {
 253     return bytes_transferred;
 254 }
 255
 256 uint64_t ram_bytes_total(void)
 257 {
 258     RAMBlock *block;
 259     uint64_t total = 0;
 260
 261     QLIST_FOREACH(block, &ram_list.blocks, next)
 262         total += block->length;
 263
 264     return total;
 265 }
 266
 267 static int block_compar(const void *a, const void *b)
 268 {
 269     RAMBlock * const *ablock = a;
 270     RAMBlock * const *bblock = b;
 271
 272     return strcmp((*ablock)->idstr, (*bblock)->idstr);
 273 }
 274
 275 static void sort_ram_list(void)
 276 {
 277     RAMBlock *block, *nblock, **blocks;
 278     int n;
 279     n = 0;
 280     QLIST_FOREACH(block, &ram_list.blocks, next) {
 281         ++n;
 282     }
 283     blocks = g_malloc(n * sizeof *blocks);
 284     n = 0;
 285     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 286         blocks[n++] = block;
 287         QLIST_REMOVE(block, next);
 288     }
 289     qsort(blocks, n, sizeof *blocks, block_compar);
 290     while (--n >= 0) {
 291         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 292     }
 293     g_free(blocks);
 294 }
 295
 296 static void migration_end(void)
 297 {
 298     memory_global_dirty_log_stop();
 299 }
 300
 301 #define MAX_WAIT 50 /* ms, half buffered_file limit */
 302
 303 int ram_save_live(QEMUFile *f, int stage, void *opaque)
 304 {
 305     ram_addr_t addr;
 306     uint64_t bytes_transferred_last;
 307     double bwidth = 0;
 308     int ret;
 309     int i;
 310
 311     if (stage < 0) {
 312         migration_end();
 313         return 0;
 314     }
 315
 316     memory_global_sync_dirty_bitmap(get_system_memory());
 317
 318     if (stage == 1) {
 319         RAMBlock *block;
 320         bytes_transferred = 0;
 321         last_block = NULL;
 322         last_offset = 0;
 323         sort_ram_list();
 324
 325         /* Make sure all dirty bits are set */
 326         QLIST_FOREACH(block, &ram_list.blocks, next) {
 327             for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 328                 if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 329                                              DIRTY_MEMORY_MIGRATION)) {
 330                     memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
 331                 }
 332             }
 333         }
 334
 335         memory_global_dirty_log_start();
 336
 337         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 338
 339         QLIST_FOREACH(block, &ram_list.blocks, next) {
 340             qemu_put_byte(f, strlen(block->idstr));
 341             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 342             qemu_put_be64(f, block->length);
 343         }
 344     }
 345
 346     bytes_transferred_last = bytes_transferred;
 347     bwidth = qemu_get_clock_ns(rt_clock);
 348
 349     i = 0;
 350     while ((ret = qemu_file_rate_limit(f)) == 0) {
 351         int bytes_sent;
 352
 353         bytes_sent = ram_save_block(f);
 354         bytes_transferred += bytes_sent;
 355         if (bytes_sent == 0) { /* no more blocks */
 356             break;
 357         }
 358         /* we want to check in the 1st loop, just in case it was the 1st time
 359            and we had to sync the dirty bitmap.
 360            qemu_get_clock_ns() is a bit expensive, so we only check each some
 361            iterations
 362         */
 363         if ((i & 63) == 0) {
 364             uint64_t t1 = (qemu_get_clock_ns(rt_clock) - bwidth) / 1000000;
 365             if (t1 > MAX_WAIT) {
 366                 DPRINTF("big wait: " PRIu64 " milliseconds, %d iterations\n",
 367                         t1, i);
 368                 break;
 369             }
 370         }
 371         i++;
 372     }
 373
 374     if (ret < 0) {
 375         return ret;
 376     }
 377
 378     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 379     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 380
 381     /* if we haven't transferred anything this round, force expected_time to a
 382      * a very high value, but without crashing */
 383     if (bwidth == 0) {
 384         bwidth = 0.000001;
 385     }
 386
 387     /* try transferring iterative blocks of memory */
 388     if (stage == 3) {
 389         int bytes_sent;
 390
 391         /* flush all remaining blocks regardless of rate limiting */
 392         while ((bytes_sent = ram_save_block(f)) != 0) {
 393             bytes_transferred += bytes_sent;
 394         }
 395         memory_global_dirty_log_stop();
 396     }
 397
 398     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 399
 400     if (stage == 2) {
 401         uint64_t expected_time;
 402         expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 403
 404         DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
 405                 expected_time, migrate_max_downtime());
 406
 407         return expected_time <= migrate_max_downtime();
 408     }
 409     return 0;
 410 }
 411
 412 static inline void *host_from_stream_offset(QEMUFile *f,
 413                                             ram_addr_t offset,
 414                                             int flags)
 415 {
 416     static RAMBlock *block = NULL;
 417     char id[256];
 418     uint8_t len;
 419
 420     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 421         if (!block) {
 422             fprintf(stderr, "Ack, bad migration stream!\n");
 423             return NULL;
 424         }
 425
 426         return memory_region_get_ram_ptr(block->mr) + offset;
 427     }
 428
 429     len = qemu_get_byte(f);
 430     qemu_get_buffer(f, (uint8_t *)id, len);
 431     id[len] = 0;
 432
 433     QLIST_FOREACH(block, &ram_list.blocks, next) {
 434         if (!strncmp(id, block->idstr, sizeof(id)))
 435             return memory_region_get_ram_ptr(block->mr) + offset;
 436     }
 437
 438     fprintf(stderr, "Can't find block %s!\n", id);
 439     return NULL;
 440 }
 441
 442 int ram_load(QEMUFile *f, void *opaque, int version_id)
 443 {
 444     ram_addr_t addr;
 445     int flags, ret = 0;
 446     int error;
 447     static uint64_t seq_iter;
 448
 449     seq_iter++;
 450
 451     if (version_id < 4 || version_id > 4) {
 452         return -EINVAL;
 453     }
 454
 455     do {
 456         addr = qemu_get_be64(f);
 457
 458         flags = addr & ~TARGET_PAGE_MASK;
 459         addr &= TARGET_PAGE_MASK;
 460
 461         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 462             if (version_id == 4) {
 463                 /* Synchronize RAM block list */
 464                 char id[256];
 465                 ram_addr_t length;
 466                 ram_addr_t total_ram_bytes = addr;
 467
 468                 while (total_ram_bytes) {
 469                     RAMBlock *block;
 470                     uint8_t len;
 471
 472                     len = qemu_get_byte(f);
 473                     qemu_get_buffer(f, (uint8_t *)id, len);
 474                     id[len] = 0;
 475                     length = qemu_get_be64(f);
 476
 477                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 478                         if (!strncmp(id, block->idstr, sizeof(id))) {
 479                             if (block->length != length) {
 480                                 ret =  -EINVAL;
 481                                 goto done;
 482                             }
 483                             break;
 484                         }
 485                     }
 486
 487                     if (!block) {
 488                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 489                                 "accept migration\n", id);
 490                         ret = -EINVAL;
 491                         goto done;
 492                     }
 493
 494                     total_ram_bytes -= length;
 495                 }
 496             }
 497         }
 498
 499         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 500             void *host;
 501             uint8_t ch;
 502
 503             host = host_from_stream_offset(f, addr, flags);
 504             if (!host) {
 505                 return -EINVAL;
 506             }
 507
 508             ch = qemu_get_byte(f);
 509             memset(host, ch, TARGET_PAGE_SIZE);
 510 #ifndef _WIN32
 511             if (ch == 0 &&
 512                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 513                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 514             }
 515 #endif
 516         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 517             void *host;
 518
 519             host = host_from_stream_offset(f, addr, flags);
 520             if (!host) {
 521                 return -EINVAL;
 522             }
 523
 524             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 525         }
 526         error = qemu_file_get_error(f);
 527         if (error) {
 528             ret = error;
 529             goto done;
 530         }
 531     } while (!(flags & RAM_SAVE_FLAG_EOS));
 532
 533 done:
 534     DPRINTF("Completed load of VM with exit code %d seq iteration " PRIu64 "\n",
 535             ret, seq_iter);
 536     return ret;
 537 }
 538
 539 #ifdef HAS_AUDIO
 540 struct soundhw {
 541     const char *name;
 542     const char *descr;
 543     int enabled;
 544     int isa;
 545     union {
 546         int (*init_isa) (ISABus *bus);
 547         int (*init_pci) (PCIBus *bus);
 548     } init;
 549 };
 550
 551 static struct soundhw soundhw[] = {
 552 #ifdef HAS_AUDIO_CHOICE
 553 #ifdef CONFIG_PCSPK
 554     {
 555         "pcspk",
 556         "PC speaker",
 557         0,
 558         1,
 559         { .init_isa = pcspk_audio_init }
 560     },
 561 #endif
 562
 563 #ifdef CONFIG_SB16
 564     {
 565         "sb16",
 566         "Creative Sound Blaster 16",
 567         0,
 568         1,
 569         { .init_isa = SB16_init }
 570     },
 571 #endif
 572
 573 #ifdef CONFIG_CS4231A
 574     {
 575         "cs4231a",
 576         "CS4231A",
 577         0,
 578         1,
 579         { .init_isa = cs4231a_init }
 580     },
 581 #endif
 582
 583 #ifdef CONFIG_ADLIB
 584     {
 585         "adlib",
 586 #ifdef HAS_YMF262
 587         "Yamaha YMF262 (OPL3)",
 588 #else
 589         "Yamaha YM3812 (OPL2)",
 590 #endif
 591         0,
 592         1,
 593         { .init_isa = Adlib_init }
 594     },
 595 #endif
 596
 597 #ifdef CONFIG_GUS
 598     {
 599         "gus",
 600         "Gravis Ultrasound GF1",
 601         0,
 602         1,
 603         { .init_isa = GUS_init }
 604     },
 605 #endif
 606
 607 #ifdef CONFIG_AC97
 608     {
 609         "ac97",
 610         "Intel 82801AA AC97 Audio",
 611         0,
 612         0,
 613         { .init_pci = ac97_init }
 614     },
 615 #endif
 616
 617 #ifdef CONFIG_ES1370
 618     {
 619         "es1370",
 620         "ENSONIQ AudioPCI ES1370",
 621         0,
 622         0,
 623         { .init_pci = es1370_init }
 624     },
 625 #endif
 626
 627 #ifdef CONFIG_HDA
 628     {
 629         "hda",
 630         "Intel HD Audio",
 631         0,
 632         0,
 633         { .init_pci = intel_hda_and_codec_init }
 634     },
 635 #endif
 636
 637 #endif /* HAS_AUDIO_CHOICE */
 638
 639     { NULL, NULL, 0, 0, { NULL } }
 640 };
 641
 642 void select_soundhw(const char *optarg)
 643 {
 644     struct soundhw *c;
 645
 646     if (*optarg == '?') {
 647     show_valid_cards:
 648
 649         printf("Valid sound card names (comma separated):\n");
 650         for (c = soundhw; c->name; ++c) {
 651             printf ("%-11s %s\n", c->name, c->descr);
 652         }
 653         printf("\n-soundhw all will enable all of the above\n");
 654         exit(*optarg != '?');
 655     }
 656     else {
 657         size_t l;
 658         const char *p;
 659         char *e;
 660         int bad_card = 0;
 661
 662         if (!strcmp(optarg, "all")) {
 663             for (c = soundhw; c->name; ++c) {
 664                 c->enabled = 1;
 665             }
 666             return;
 667         }
 668
 669         p = optarg;
 670         while (*p) {
 671             e = strchr(p, ',');
 672             l = !e ? strlen(p) : (size_t) (e - p);
 673
 674             for (c = soundhw; c->name; ++c) {
 675                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 676                     c->enabled = 1;
 677                     break;
 678                 }
 679             }
 680
 681             if (!c->name) {
 682                 if (l > 80) {
 683                     fprintf(stderr,
 684                             "Unknown sound card name (too big to show)\n");
 685                 }
 686                 else {
 687                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 688                             (int) l, p);
 689                 }
 690                 bad_card = 1;
 691             }
 692             p += l + (e != NULL);
 693         }
 694
 695         if (bad_card) {
 696             goto show_valid_cards;
 697         }
 698     }
 699 }
 700
 701 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 702 {
 703     struct soundhw *c;
 704
 705     for (c = soundhw; c->name; ++c) {
 706         if (c->enabled) {
 707             if (c->isa) {
 708                 if (isa_bus) {
 709                     c->init.init_isa(isa_bus);
 710                 }
 711             } else {
 712                 if (pci_bus) {
 713                     c->init.init_pci(pci_bus);
 714                 }
 715             }
 716         }
 717     }
 718 }
 719 #else
 720 void select_soundhw(const char *optarg)
 721 {
 722 }
 723 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 724 {
 725 }
 726 #endif
 727
 728 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 729 {
 730     int ret;
 731
 732     if (strlen(str) != 36) {
 733         return -1;
 734     }
 735
 736     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 737                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 738                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 739                  &uuid[15]);
 740
 741     if (ret != 16) {
 742         return -1;
 743     }
 744 #ifdef TARGET_I386
 745     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 746 #endif
 747     return 0;
 748 }
 749
 750 void do_acpitable_option(const char *optarg)
 751 {
 752 #ifdef TARGET_I386
 753     if (acpi_table_add(optarg) < 0) {
 754         fprintf(stderr, "Wrong acpi table provided\n");
 755         exit(1);
 756     }
 757 #endif
 758 }
 759
 760 void do_smbios_option(const char *optarg)
 761 {
 762 #ifdef TARGET_I386
 763     if (smbios_entry_add(optarg) < 0) {
 764         fprintf(stderr, "Wrong smbios provided\n");
 765         exit(1);
 766     }
 767 #endif
 768 }
 769
 770 void cpudef_init(void)
 771 {
 772 #if defined(cpudef_setup)
 773     cpudef_setup(); /* parse cpu definitions in target config file */
 774 #endif
 775 }
 776
 777 int audio_available(void)
 778 {
 779 #ifdef HAS_AUDIO
 780     return 1;
 781 #else
 782     return 0;
 783 #endif
 784 }
 785
 786 int tcg_available(void)
 787 {
 788     return 1;
 789 }
 790
 791 int kvm_available(void)
 792 {
 793 #ifdef CONFIG_KVM
 794     return 1;
 795 #else
 796     return 0;
 797 #endif
 798 }
 799
 800 int xen_available(void)
 801 {
 802 #ifdef CONFIG_XEN
 803     return 1;
 804 #else
 805     return 0;
 806 #endif
 807 }