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
  45 #ifdef TARGET_SPARC
  46 int graphic_width = 1024;
  47 int graphic_height = 768;
  48 int graphic_depth = 8;
  49 #else
  50 int graphic_width = 800;
  51 int graphic_height = 600;
  52 int graphic_depth = 15;
  53 #endif
  54
  55 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
  56
  57 #if defined(TARGET_ALPHA)
  58 #define QEMU_ARCH QEMU_ARCH_ALPHA
  59 #elif defined(TARGET_ARM)
  60 #define QEMU_ARCH QEMU_ARCH_ARM
  61 #elif defined(TARGET_CRIS)
  62 #define QEMU_ARCH QEMU_ARCH_CRIS
  63 #elif defined(TARGET_I386)
  64 #define QEMU_ARCH QEMU_ARCH_I386
  65 #elif defined(TARGET_M68K)
  66 #define QEMU_ARCH QEMU_ARCH_M68K
  67 #elif defined(TARGET_MICROBLAZE)
  68 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  69 #elif defined(TARGET_MIPS)
  70 #define QEMU_ARCH QEMU_ARCH_MIPS
  71 #elif defined(TARGET_PPC)
  72 #define QEMU_ARCH QEMU_ARCH_PPC
  73 #elif defined(TARGET_S390X)
  74 #define QEMU_ARCH QEMU_ARCH_S390X
  75 #elif defined(TARGET_SH4)
  76 #define QEMU_ARCH QEMU_ARCH_SH4
  77 #elif defined(TARGET_SPARC)
  78 #define QEMU_ARCH QEMU_ARCH_SPARC
  79 #endif
  80
  81 const uint32_t arch_type = QEMU_ARCH;
  82
  83 /***********************************************************/
  84 /* ram save/restore */
  85
  86 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
  87 #define RAM_SAVE_FLAG_COMPRESS 0x02
  88 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
  89 #define RAM_SAVE_FLAG_PAGE     0x08
  90 #define RAM_SAVE_FLAG_EOS      0x10
  91 #define RAM_SAVE_FLAG_CONTINUE 0x20
  92
  93 static int is_dup_page(uint8_t *page, uint8_t ch)
  94 {
  95     uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
  96     uint32_t *array = (uint32_t *)page;
  97     int i;
  98
  99     for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
 100         if (array[i] != val) {
 101             return 0;
 102         }
 103     }
 104
 105     return 1;
 106 }
 107
 108 static RAMBlock *last_block;
 109 static ram_addr_t last_offset;
 110
 111 static int ram_save_block(QEMUFile *f)
 112 {
 113     RAMBlock *block = last_block;
 114     ram_addr_t offset = last_offset;
 115     ram_addr_t current_addr;
 116     int bytes_sent = 0;
 117
 118     if (!block)
 119         block = QLIST_FIRST(&ram_list.blocks);
 120
 121     current_addr = block->offset + offset;
 122
 123     do {
 124         if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
 125             uint8_t *p;
 126             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 127
 128             cpu_physical_memory_reset_dirty(current_addr,
 129                                             current_addr + TARGET_PAGE_SIZE,
 130                                             MIGRATION_DIRTY_FLAG);
 131
 132             p = block->host + offset;
 133
 134             if (is_dup_page(p, *p)) {
 135                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 136                 if (!cont) {
 137                     qemu_put_byte(f, strlen(block->idstr));
 138                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 139                                     strlen(block->idstr));
 140                 }
 141                 qemu_put_byte(f, *p);
 142                 bytes_sent = 1;
 143             } else {
 144                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 145                 if (!cont) {
 146                     qemu_put_byte(f, strlen(block->idstr));
 147                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 148                                     strlen(block->idstr));
 149                 }
 150                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 151                 bytes_sent = TARGET_PAGE_SIZE;
 152             }
 153
 154             break;
 155         }
 156
 157         offset += TARGET_PAGE_SIZE;
 158         if (offset >= block->length) {
 159             offset = 0;
 160             block = QLIST_NEXT(block, next);
 161             if (!block)
 162                 block = QLIST_FIRST(&ram_list.blocks);
 163         }
 164
 165         current_addr = block->offset + offset;
 166
 167     } while (current_addr != last_block->offset + last_offset);
 168
 169     last_block = block;
 170     last_offset = offset;
 171
 172     return bytes_sent;
 173 }
 174
 175 static uint64_t bytes_transferred;
 176
 177 static ram_addr_t ram_save_remaining(void)
 178 {
 179     RAMBlock *block;
 180     ram_addr_t count = 0;
 181
 182     QLIST_FOREACH(block, &ram_list.blocks, next) {
 183         ram_addr_t addr;
 184         for (addr = block->offset; addr < block->offset + block->length;
 185              addr += TARGET_PAGE_SIZE) {
 186             if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 187                 count++;
 188             }
 189         }
 190     }
 191
 192     return count;
 193 }
 194
 195 uint64_t ram_bytes_remaining(void)
 196 {
 197     return ram_save_remaining() * TARGET_PAGE_SIZE;
 198 }
 199
 200 uint64_t ram_bytes_transferred(void)
 201 {
 202     return bytes_transferred;
 203 }
 204
 205 uint64_t ram_bytes_total(void)
 206 {
 207     RAMBlock *block;
 208     uint64_t total = 0;
 209
 210     QLIST_FOREACH(block, &ram_list.blocks, next)
 211         total += block->length;
 212
 213     return total;
 214 }
 215
 216 static int block_compar(const void *a, const void *b)
 217 {
 218     RAMBlock * const *ablock = a;
 219     RAMBlock * const *bblock = b;
 220     if ((*ablock)->offset < (*bblock)->offset) {
 221         return -1;
 222     } else if ((*ablock)->offset > (*bblock)->offset) {
 223         return 1;
 224     }
 225     return 0;
 226 }
 227
 228 static void sort_ram_list(void)
 229 {
 230     RAMBlock *block, *nblock, **blocks;
 231     int n;
 232     n = 0;
 233     QLIST_FOREACH(block, &ram_list.blocks, next) {
 234         ++n;
 235     }
 236     blocks = qemu_malloc(n * sizeof *blocks);
 237     n = 0;
 238     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 239         blocks[n++] = block;
 240         QLIST_REMOVE(block, next);
 241     }
 242     qsort(blocks, n, sizeof *blocks, block_compar);
 243     while (--n >= 0) {
 244         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 245     }
 246     qemu_free(blocks);
 247 }
 248
 249 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 250 {
 251     ram_addr_t addr;
 252     uint64_t bytes_transferred_last;
 253     double bwidth = 0;
 254     uint64_t expected_time = 0;
 255
 256     if (stage < 0) {
 257         cpu_physical_memory_set_dirty_tracking(0);
 258         return 0;
 259     }
 260
 261     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 262         qemu_file_set_error(f);
 263         return 0;
 264     }
 265
 266     if (stage == 1) {
 267         RAMBlock *block;
 268         bytes_transferred = 0;
 269         last_block = NULL;
 270         last_offset = 0;
 271         sort_ram_list();
 272
 273         /* Make sure all dirty bits are set */
 274         QLIST_FOREACH(block, &ram_list.blocks, next) {
 275             for (addr = block->offset; addr < block->offset + block->length;
 276                  addr += TARGET_PAGE_SIZE) {
 277                 if (!cpu_physical_memory_get_dirty(addr,
 278                                                    MIGRATION_DIRTY_FLAG)) {
 279                     cpu_physical_memory_set_dirty(addr);
 280                 }
 281             }
 282         }
 283
 284         /* Enable dirty memory tracking */
 285         cpu_physical_memory_set_dirty_tracking(1);
 286
 287         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 288
 289         QLIST_FOREACH(block, &ram_list.blocks, next) {
 290             qemu_put_byte(f, strlen(block->idstr));
 291             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 292             qemu_put_be64(f, block->length);
 293         }
 294     }
 295
 296     bytes_transferred_last = bytes_transferred;
 297     bwidth = qemu_get_clock_ns(rt_clock);
 298
 299     while (!qemu_file_rate_limit(f)) {
 300         int bytes_sent;
 301
 302         bytes_sent = ram_save_block(f);
 303         bytes_transferred += bytes_sent;
 304         if (bytes_sent == 0) { /* no more blocks */
 305             break;
 306         }
 307     }
 308
 309     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 310     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 311
 312     /* if we haven't transferred anything this round, force expected_time to a
 313      * a very high value, but without crashing */
 314     if (bwidth == 0) {
 315         bwidth = 0.000001;
 316     }
 317
 318     /* try transferring iterative blocks of memory */
 319     if (stage == 3) {
 320         int bytes_sent;
 321
 322         /* flush all remaining blocks regardless of rate limiting */
 323         while ((bytes_sent = ram_save_block(f)) != 0) {
 324             bytes_transferred += bytes_sent;
 325         }
 326         cpu_physical_memory_set_dirty_tracking(0);
 327     }
 328
 329     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 330
 331     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 332
 333     return (stage == 2) && (expected_time <= migrate_max_downtime());
 334 }
 335
 336 static inline void *host_from_stream_offset(QEMUFile *f,
 337                                             ram_addr_t offset,
 338                                             int flags)
 339 {
 340     static RAMBlock *block = NULL;
 341     char id[256];
 342     uint8_t len;
 343
 344     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 345         if (!block) {
 346             fprintf(stderr, "Ack, bad migration stream!\n");
 347             return NULL;
 348         }
 349
 350         return block->host + offset;
 351     }
 352
 353     len = qemu_get_byte(f);
 354     qemu_get_buffer(f, (uint8_t *)id, len);
 355     id[len] = 0;
 356
 357     QLIST_FOREACH(block, &ram_list.blocks, next) {
 358         if (!strncmp(id, block->idstr, sizeof(id)))
 359             return block->host + offset;
 360     }
 361
 362     fprintf(stderr, "Can't find block %s!\n", id);
 363     return NULL;
 364 }
 365
 366 int ram_load(QEMUFile *f, void *opaque, int version_id)
 367 {
 368     ram_addr_t addr;
 369     int flags;
 370
 371     if (version_id < 3 || version_id > 4) {
 372         return -EINVAL;
 373     }
 374
 375     do {
 376         addr = qemu_get_be64(f);
 377
 378         flags = addr & ~TARGET_PAGE_MASK;
 379         addr &= TARGET_PAGE_MASK;
 380
 381         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 382             if (version_id == 3) {
 383                 if (addr != ram_bytes_total()) {
 384                     return -EINVAL;
 385                 }
 386             } else {
 387                 /* Synchronize RAM block list */
 388                 char id[256];
 389                 ram_addr_t length;
 390                 ram_addr_t total_ram_bytes = addr;
 391
 392                 while (total_ram_bytes) {
 393                     RAMBlock *block;
 394                     uint8_t len;
 395
 396                     len = qemu_get_byte(f);
 397                     qemu_get_buffer(f, (uint8_t *)id, len);
 398                     id[len] = 0;
 399                     length = qemu_get_be64(f);
 400
 401                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 402                         if (!strncmp(id, block->idstr, sizeof(id))) {
 403                             if (block->length != length)
 404                                 return -EINVAL;
 405                             break;
 406                         }
 407                     }
 408
 409                     if (!block) {
 410                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 411                                 "accept migration\n", id);
 412                         return -EINVAL;
 413                     }
 414
 415                     total_ram_bytes -= length;
 416                 }
 417             }
 418         }
 419
 420         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 421             void *host;
 422             uint8_t ch;
 423
 424             if (version_id == 3)
 425                 host = qemu_get_ram_ptr(addr);
 426             else
 427                 host = host_from_stream_offset(f, addr, flags);
 428             if (!host) {
 429                 return -EINVAL;
 430             }
 431
 432             ch = qemu_get_byte(f);
 433             memset(host, ch, TARGET_PAGE_SIZE);
 434 #ifndef _WIN32
 435             if (ch == 0 &&
 436                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 437                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 438             }
 439 #endif
 440         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 441             void *host;
 442
 443             if (version_id == 3)
 444                 host = qemu_get_ram_ptr(addr);
 445             else
 446                 host = host_from_stream_offset(f, addr, flags);
 447
 448             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 449         }
 450         if (qemu_file_has_error(f)) {
 451             return -EIO;
 452         }
 453     } while (!(flags & RAM_SAVE_FLAG_EOS));
 454
 455     return 0;
 456 }
 457
 458 void qemu_service_io(void)
 459 {
 460     qemu_notify_event();
 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) (qemu_irq *pic);
 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(qemu_irq *isa_pic, 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_pic) {
 633                     c->init.init_isa(isa_pic);
 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(qemu_irq *isa_pic, 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 kvm_available(void)
 711 {
 712 #ifdef CONFIG_KVM
 713     return 1;
 714 #else
 715     return 0;
 716 #endif
 717 }
 718
 719 int xen_available(void)
 720 {
 721 #ifdef CONFIG_XEN
 722     return 1;
 723 #else
 724     return 0;
 725 #endif
 726 }