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