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