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_LM32)
  68 #define QEMU_ARCH QEMU_ARCH_LM32
  69 #elif defined(TARGET_MICROBLAZE)
  70 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  71 #elif defined(TARGET_MIPS)
  72 #define QEMU_ARCH QEMU_ARCH_MIPS
  73 #elif defined(TARGET_PPC)
  74 #define QEMU_ARCH QEMU_ARCH_PPC
  75 #elif defined(TARGET_S390X)
  76 #define QEMU_ARCH QEMU_ARCH_S390X
  77 #elif defined(TARGET_SH4)
  78 #define QEMU_ARCH QEMU_ARCH_SH4
  79 #elif defined(TARGET_SPARC)
  80 #define QEMU_ARCH QEMU_ARCH_SPARC
  81 #elif defined(TARGET_XTENSA)
  82 #define QEMU_ARCH QEMU_ARCH_XTENSA
  83 #endif
  84
  85 const uint32_t arch_type = QEMU_ARCH;
  86
  87 /***********************************************************/
  88 /* ram save/restore */
  89
  90 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
  91 #define RAM_SAVE_FLAG_COMPRESS 0x02
  92 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
  93 #define RAM_SAVE_FLAG_PAGE     0x08
  94 #define RAM_SAVE_FLAG_EOS      0x10
  95 #define RAM_SAVE_FLAG_CONTINUE 0x20
  96
  97 static int is_dup_page(uint8_t *page, uint8_t ch)
  98 {
  99     uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
 100     uint32_t *array = (uint32_t *)page;
 101     int i;
 102
 103     for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
 104         if (array[i] != val) {
 105             return 0;
 106         }
 107     }
 108
 109     return 1;
 110 }
 111
 112 static RAMBlock *last_block;
 113 static ram_addr_t last_offset;
 114
 115 static int ram_save_block(QEMUFile *f)
 116 {
 117     RAMBlock *block = last_block;
 118     ram_addr_t offset = last_offset;
 119     ram_addr_t current_addr;
 120     int bytes_sent = 0;
 121
 122     if (!block)
 123         block = QLIST_FIRST(&ram_list.blocks);
 124
 125     current_addr = block->offset + offset;
 126
 127     do {
 128         if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
 129             uint8_t *p;
 130             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 131
 132             cpu_physical_memory_reset_dirty(current_addr,
 133                                             current_addr + TARGET_PAGE_SIZE,
 134                                             MIGRATION_DIRTY_FLAG);
 135
 136             p = block->host + offset;
 137
 138             if (is_dup_page(p, *p)) {
 139                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 140                 if (!cont) {
 141                     qemu_put_byte(f, strlen(block->idstr));
 142                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 143                                     strlen(block->idstr));
 144                 }
 145                 qemu_put_byte(f, *p);
 146                 bytes_sent = 1;
 147             } else {
 148                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 149                 if (!cont) {
 150                     qemu_put_byte(f, strlen(block->idstr));
 151                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 152                                     strlen(block->idstr));
 153                 }
 154                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 155                 bytes_sent = TARGET_PAGE_SIZE;
 156             }
 157
 158             break;
 159         }
 160
 161         offset += TARGET_PAGE_SIZE;
 162         if (offset >= block->length) {
 163             offset = 0;
 164             block = QLIST_NEXT(block, next);
 165             if (!block)
 166                 block = QLIST_FIRST(&ram_list.blocks);
 167         }
 168
 169         current_addr = block->offset + offset;
 170
 171     } while (current_addr != last_block->offset + last_offset);
 172
 173     last_block = block;
 174     last_offset = offset;
 175
 176     return bytes_sent;
 177 }
 178
 179 static uint64_t bytes_transferred;
 180
 181 static ram_addr_t ram_save_remaining(void)
 182 {
 183     RAMBlock *block;
 184     ram_addr_t count = 0;
 185
 186     QLIST_FOREACH(block, &ram_list.blocks, next) {
 187         ram_addr_t addr;
 188         for (addr = block->offset; addr < block->offset + block->length;
 189              addr += TARGET_PAGE_SIZE) {
 190             if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 191                 count++;
 192             }
 193         }
 194     }
 195
 196     return count;
 197 }
 198
 199 uint64_t ram_bytes_remaining(void)
 200 {
 201     return ram_save_remaining() * TARGET_PAGE_SIZE;
 202 }
 203
 204 uint64_t ram_bytes_transferred(void)
 205 {
 206     return bytes_transferred;
 207 }
 208
 209 uint64_t ram_bytes_total(void)
 210 {
 211     RAMBlock *block;
 212     uint64_t total = 0;
 213
 214     QLIST_FOREACH(block, &ram_list.blocks, next)
 215         total += block->length;
 216
 217     return total;
 218 }
 219
 220 static int block_compar(const void *a, const void *b)
 221 {
 222     RAMBlock * const *ablock = a;
 223     RAMBlock * const *bblock = b;
 224     if ((*ablock)->offset < (*bblock)->offset) {
 225         return -1;
 226     } else if ((*ablock)->offset > (*bblock)->offset) {
 227         return 1;
 228     }
 229     return 0;
 230 }
 231
 232 static void sort_ram_list(void)
 233 {
 234     RAMBlock *block, *nblock, **blocks;
 235     int n;
 236     n = 0;
 237     QLIST_FOREACH(block, &ram_list.blocks, next) {
 238         ++n;
 239     }
 240     blocks = g_malloc(n * sizeof *blocks);
 241     n = 0;
 242     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 243         blocks[n++] = block;
 244         QLIST_REMOVE(block, next);
 245     }
 246     qsort(blocks, n, sizeof *blocks, block_compar);
 247     while (--n >= 0) {
 248         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 249     }
 250     g_free(blocks);
 251 }
 252
 253 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 254 {
 255     ram_addr_t addr;
 256     uint64_t bytes_transferred_last;
 257     double bwidth = 0;
 258     uint64_t expected_time = 0;
 259
 260     if (stage < 0) {
 261         cpu_physical_memory_set_dirty_tracking(0);
 262         return 0;
 263     }
 264
 265     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 266         qemu_file_set_error(f);
 267         return 0;
 268     }
 269
 270     if (stage == 1) {
 271         RAMBlock *block;
 272         bytes_transferred = 0;
 273         last_block = NULL;
 274         last_offset = 0;
 275         sort_ram_list();
 276
 277         /* Make sure all dirty bits are set */
 278         QLIST_FOREACH(block, &ram_list.blocks, next) {
 279             for (addr = block->offset; addr < block->offset + block->length;
 280                  addr += TARGET_PAGE_SIZE) {
 281                 if (!cpu_physical_memory_get_dirty(addr,
 282                                                    MIGRATION_DIRTY_FLAG)) {
 283                     cpu_physical_memory_set_dirty(addr);
 284                 }
 285             }
 286         }
 287
 288         /* Enable dirty memory tracking */
 289         cpu_physical_memory_set_dirty_tracking(1);
 290
 291         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 292
 293         QLIST_FOREACH(block, &ram_list.blocks, next) {
 294             qemu_put_byte(f, strlen(block->idstr));
 295             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 296             qemu_put_be64(f, block->length);
 297         }
 298     }
 299
 300     bytes_transferred_last = bytes_transferred;
 301     bwidth = qemu_get_clock_ns(rt_clock);
 302
 303     while (!qemu_file_rate_limit(f)) {
 304         int bytes_sent;
 305
 306         bytes_sent = ram_save_block(f);
 307         bytes_transferred += bytes_sent;
 308         if (bytes_sent == 0) { /* no more blocks */
 309             break;
 310         }
 311     }
 312
 313     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 314     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 315
 316     /* if we haven't transferred anything this round, force expected_time to a
 317      * a very high value, but without crashing */
 318     if (bwidth == 0) {
 319         bwidth = 0.000001;
 320     }
 321
 322     /* try transferring iterative blocks of memory */
 323     if (stage == 3) {
 324         int bytes_sent;
 325
 326         /* flush all remaining blocks regardless of rate limiting */
 327         while ((bytes_sent = ram_save_block(f)) != 0) {
 328             bytes_transferred += bytes_sent;
 329         }
 330         cpu_physical_memory_set_dirty_tracking(0);
 331     }
 332
 333     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 334
 335     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 336
 337     return (stage == 2) && (expected_time <= migrate_max_downtime());
 338 }
 339
 340 static inline void *host_from_stream_offset(QEMUFile *f,
 341                                             ram_addr_t offset,
 342                                             int flags)
 343 {
 344     static RAMBlock *block = NULL;
 345     char id[256];
 346     uint8_t len;
 347
 348     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 349         if (!block) {
 350             fprintf(stderr, "Ack, bad migration stream!\n");
 351             return NULL;
 352         }
 353
 354         return block->host + offset;
 355     }
 356
 357     len = qemu_get_byte(f);
 358     qemu_get_buffer(f, (uint8_t *)id, len);
 359     id[len] = 0;
 360
 361     QLIST_FOREACH(block, &ram_list.blocks, next) {
 362         if (!strncmp(id, block->idstr, sizeof(id)))
 363             return block->host + offset;
 364     }
 365
 366     fprintf(stderr, "Can't find block %s!\n", id);
 367     return NULL;
 368 }
 369
 370 int ram_load(QEMUFile *f, void *opaque, int version_id)
 371 {
 372     ram_addr_t addr;
 373     int flags;
 374
 375     if (version_id < 3 || version_id > 4) {
 376         return -EINVAL;
 377     }
 378
 379     do {
 380         addr = qemu_get_be64(f);
 381
 382         flags = addr & ~TARGET_PAGE_MASK;
 383         addr &= TARGET_PAGE_MASK;
 384
 385         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 386             if (version_id == 3) {
 387                 if (addr != ram_bytes_total()) {
 388                     return -EINVAL;
 389                 }
 390             } else {
 391                 /* Synchronize RAM block list */
 392                 char id[256];
 393                 ram_addr_t length;
 394                 ram_addr_t total_ram_bytes = addr;
 395
 396                 while (total_ram_bytes) {
 397                     RAMBlock *block;
 398                     uint8_t len;
 399
 400                     len = qemu_get_byte(f);
 401                     qemu_get_buffer(f, (uint8_t *)id, len);
 402                     id[len] = 0;
 403                     length = qemu_get_be64(f);
 404
 405                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 406                         if (!strncmp(id, block->idstr, sizeof(id))) {
 407                             if (block->length != length)
 408                                 return -EINVAL;
 409                             break;
 410                         }
 411                     }
 412
 413                     if (!block) {
 414                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 415                                 "accept migration\n", id);
 416                         return -EINVAL;
 417                     }
 418
 419                     total_ram_bytes -= length;
 420                 }
 421             }
 422         }
 423
 424         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 425             void *host;
 426             uint8_t ch;
 427
 428             if (version_id == 3)
 429                 host = qemu_get_ram_ptr(addr);
 430             else
 431                 host = host_from_stream_offset(f, addr, flags);
 432             if (!host) {
 433                 return -EINVAL;
 434             }
 435
 436             ch = qemu_get_byte(f);
 437             memset(host, ch, TARGET_PAGE_SIZE);
 438 #ifndef _WIN32
 439             if (ch == 0 &&
 440                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 441                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 442             }
 443 #endif
 444         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 445             void *host;
 446
 447             if (version_id == 3)
 448                 host = qemu_get_ram_ptr(addr);
 449             else
 450                 host = host_from_stream_offset(f, addr, flags);
 451
 452             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 453         }
 454         if (qemu_file_has_error(f)) {
 455             return -EIO;
 456         }
 457     } while (!(flags & RAM_SAVE_FLAG_EOS));
 458
 459     return 0;
 460 }
 461
 462 void qemu_service_io(void)
 463 {
 464     qemu_notify_event();
 465 }
 466
 467 #ifdef HAS_AUDIO
 468 struct soundhw {
 469     const char *name;
 470     const char *descr;
 471     int enabled;
 472     int isa;
 473     union {
 474         int (*init_isa) (qemu_irq *pic);
 475         int (*init_pci) (PCIBus *bus);
 476     } init;
 477 };
 478
 479 static struct soundhw soundhw[] = {
 480 #ifdef HAS_AUDIO_CHOICE
 481 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 482     {
 483         "pcspk",
 484         "PC speaker",
 485         0,
 486         1,
 487         { .init_isa = pcspk_audio_init }
 488     },
 489 #endif
 490
 491 #ifdef CONFIG_SB16
 492     {
 493         "sb16",
 494         "Creative Sound Blaster 16",
 495         0,
 496         1,
 497         { .init_isa = SB16_init }
 498     },
 499 #endif
 500
 501 #ifdef CONFIG_CS4231A
 502     {
 503         "cs4231a",
 504         "CS4231A",
 505         0,
 506         1,
 507         { .init_isa = cs4231a_init }
 508     },
 509 #endif
 510
 511 #ifdef CONFIG_ADLIB
 512     {
 513         "adlib",
 514 #ifdef HAS_YMF262
 515         "Yamaha YMF262 (OPL3)",
 516 #else
 517         "Yamaha YM3812 (OPL2)",
 518 #endif
 519         0,
 520         1,
 521         { .init_isa = Adlib_init }
 522     },
 523 #endif
 524
 525 #ifdef CONFIG_GUS
 526     {
 527         "gus",
 528         "Gravis Ultrasound GF1",
 529         0,
 530         1,
 531         { .init_isa = GUS_init }
 532     },
 533 #endif
 534
 535 #ifdef CONFIG_AC97
 536     {
 537         "ac97",
 538         "Intel 82801AA AC97 Audio",
 539         0,
 540         0,
 541         { .init_pci = ac97_init }
 542     },
 543 #endif
 544
 545 #ifdef CONFIG_ES1370
 546     {
 547         "es1370",
 548         "ENSONIQ AudioPCI ES1370",
 549         0,
 550         0,
 551         { .init_pci = es1370_init }
 552     },
 553 #endif
 554
 555 #ifdef CONFIG_HDA
 556     {
 557         "hda",
 558         "Intel HD Audio",
 559         0,
 560         0,
 561         { .init_pci = intel_hda_and_codec_init }
 562     },
 563 #endif
 564
 565 #endif /* HAS_AUDIO_CHOICE */
 566
 567     { NULL, NULL, 0, 0, { NULL } }
 568 };
 569
 570 void select_soundhw(const char *optarg)
 571 {
 572     struct soundhw *c;
 573
 574     if (*optarg == '?') {
 575     show_valid_cards:
 576
 577         printf("Valid sound card names (comma separated):\n");
 578         for (c = soundhw; c->name; ++c) {
 579             printf ("%-11s %s\n", c->name, c->descr);
 580         }
 581         printf("\n-soundhw all will enable all of the above\n");
 582         exit(*optarg != '?');
 583     }
 584     else {
 585         size_t l;
 586         const char *p;
 587         char *e;
 588         int bad_card = 0;
 589
 590         if (!strcmp(optarg, "all")) {
 591             for (c = soundhw; c->name; ++c) {
 592                 c->enabled = 1;
 593             }
 594             return;
 595         }
 596
 597         p = optarg;
 598         while (*p) {
 599             e = strchr(p, ',');
 600             l = !e ? strlen(p) : (size_t) (e - p);
 601
 602             for (c = soundhw; c->name; ++c) {
 603                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 604                     c->enabled = 1;
 605                     break;
 606                 }
 607             }
 608
 609             if (!c->name) {
 610                 if (l > 80) {
 611                     fprintf(stderr,
 612                             "Unknown sound card name (too big to show)\n");
 613                 }
 614                 else {
 615                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 616                             (int) l, p);
 617                 }
 618                 bad_card = 1;
 619             }
 620             p += l + (e != NULL);
 621         }
 622
 623         if (bad_card) {
 624             goto show_valid_cards;
 625         }
 626     }
 627 }
 628
 629 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 630 {
 631     struct soundhw *c;
 632
 633     for (c = soundhw; c->name; ++c) {
 634         if (c->enabled) {
 635             if (c->isa) {
 636                 if (isa_pic) {
 637                     c->init.init_isa(isa_pic);
 638                 }
 639             } else {
 640                 if (pci_bus) {
 641                     c->init.init_pci(pci_bus);
 642                 }
 643             }
 644         }
 645     }
 646 }
 647 #else
 648 void select_soundhw(const char *optarg)
 649 {
 650 }
 651 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 652 {
 653 }
 654 #endif
 655
 656 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 657 {
 658     int ret;
 659
 660     if (strlen(str) != 36) {
 661         return -1;
 662     }
 663
 664     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 665                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 666                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 667                  &uuid[15]);
 668
 669     if (ret != 16) {
 670         return -1;
 671     }
 672 #ifdef TARGET_I386
 673     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 674 #endif
 675     return 0;
 676 }
 677
 678 void do_acpitable_option(const char *optarg)
 679 {
 680 #ifdef TARGET_I386
 681     if (acpi_table_add(optarg) < 0) {
 682         fprintf(stderr, "Wrong acpi table provided\n");
 683         exit(1);
 684     }
 685 #endif
 686 }
 687
 688 void do_smbios_option(const char *optarg)
 689 {
 690 #ifdef TARGET_I386
 691     if (smbios_entry_add(optarg) < 0) {
 692         fprintf(stderr, "Wrong smbios provided\n");
 693         exit(1);
 694     }
 695 #endif
 696 }
 697
 698 void cpudef_init(void)
 699 {
 700 #if defined(cpudef_setup)
 701     cpudef_setup(); /* parse cpu definitions in target config file */
 702 #endif
 703 }
 704
 705 int audio_available(void)
 706 {
 707 #ifdef HAS_AUDIO
 708     return 1;
 709 #else
 710     return 0;
 711 #endif
 712 }
 713
 714 int tcg_available(void)
 715 {
 716     return 1;
 717 }
 718
 719 int kvm_available(void)
 720 {
 721 #ifdef CONFIG_KVM
 722     return 1;
 723 #else
 724     return 0;
 725 #endif
 726 }
 727
 728 int xen_available(void)
 729 {
 730 #ifdef CONFIG_XEN
 731     return 1;
 732 #else
 733     return 0;
 734 #endif
 735 }