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