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, -EINVAL);
 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     int error;
 375
 376     if (version_id < 3 || version_id > 4) {
 377         return -EINVAL;
 378     }
 379
 380     do {
 381         addr = qemu_get_be64(f);
 382
 383         flags = addr & ~TARGET_PAGE_MASK;
 384         addr &= TARGET_PAGE_MASK;
 385
 386         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 387             if (version_id == 3) {
 388                 if (addr != ram_bytes_total()) {
 389                     return -EINVAL;
 390                 }
 391             } else {
 392                 /* Synchronize RAM block list */
 393                 char id[256];
 394                 ram_addr_t length;
 395                 ram_addr_t total_ram_bytes = addr;
 396
 397                 while (total_ram_bytes) {
 398                     RAMBlock *block;
 399                     uint8_t len;
 400
 401                     len = qemu_get_byte(f);
 402                     qemu_get_buffer(f, (uint8_t *)id, len);
 403                     id[len] = 0;
 404                     length = qemu_get_be64(f);
 405
 406                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 407                         if (!strncmp(id, block->idstr, sizeof(id))) {
 408                             if (block->length != length)
 409                                 return -EINVAL;
 410                             break;
 411                         }
 412                     }
 413
 414                     if (!block) {
 415                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 416                                 "accept migration\n", id);
 417                         return -EINVAL;
 418                     }
 419
 420                     total_ram_bytes -= length;
 421                 }
 422             }
 423         }
 424
 425         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 426             void *host;
 427             uint8_t ch;
 428
 429             if (version_id == 3)
 430                 host = qemu_get_ram_ptr(addr);
 431             else
 432                 host = host_from_stream_offset(f, addr, flags);
 433             if (!host) {
 434                 return -EINVAL;
 435             }
 436
 437             ch = qemu_get_byte(f);
 438             memset(host, ch, TARGET_PAGE_SIZE);
 439 #ifndef _WIN32
 440             if (ch == 0 &&
 441                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 442                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 443             }
 444 #endif
 445         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 446             void *host;
 447
 448             if (version_id == 3)
 449                 host = qemu_get_ram_ptr(addr);
 450             else
 451                 host = host_from_stream_offset(f, addr, flags);
 452
 453             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 454         }
 455         error = qemu_file_get_error(f);
 456         if (error) {
 457             return error;
 458         }
 459     } while (!(flags & RAM_SAVE_FLAG_EOS));
 460
 461     return 0;
 462 }
 463
 464 #ifdef HAS_AUDIO
 465 struct soundhw {
 466     const char *name;
 467     const char *descr;
 468     int enabled;
 469     int isa;
 470     union {
 471         int (*init_isa) (qemu_irq *pic);
 472         int (*init_pci) (PCIBus *bus);
 473     } init;
 474 };
 475
 476 static struct soundhw soundhw[] = {
 477 #ifdef HAS_AUDIO_CHOICE
 478 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 479     {
 480         "pcspk",
 481         "PC speaker",
 482         0,
 483         1,
 484         { .init_isa = pcspk_audio_init }
 485     },
 486 #endif
 487
 488 #ifdef CONFIG_SB16
 489     {
 490         "sb16",
 491         "Creative Sound Blaster 16",
 492         0,
 493         1,
 494         { .init_isa = SB16_init }
 495     },
 496 #endif
 497
 498 #ifdef CONFIG_CS4231A
 499     {
 500         "cs4231a",
 501         "CS4231A",
 502         0,
 503         1,
 504         { .init_isa = cs4231a_init }
 505     },
 506 #endif
 507
 508 #ifdef CONFIG_ADLIB
 509     {
 510         "adlib",
 511 #ifdef HAS_YMF262
 512         "Yamaha YMF262 (OPL3)",
 513 #else
 514         "Yamaha YM3812 (OPL2)",
 515 #endif
 516         0,
 517         1,
 518         { .init_isa = Adlib_init }
 519     },
 520 #endif
 521
 522 #ifdef CONFIG_GUS
 523     {
 524         "gus",
 525         "Gravis Ultrasound GF1",
 526         0,
 527         1,
 528         { .init_isa = GUS_init }
 529     },
 530 #endif
 531
 532 #ifdef CONFIG_AC97
 533     {
 534         "ac97",
 535         "Intel 82801AA AC97 Audio",
 536         0,
 537         0,
 538         { .init_pci = ac97_init }
 539     },
 540 #endif
 541
 542 #ifdef CONFIG_ES1370
 543     {
 544         "es1370",
 545         "ENSONIQ AudioPCI ES1370",
 546         0,
 547         0,
 548         { .init_pci = es1370_init }
 549     },
 550 #endif
 551
 552 #ifdef CONFIG_HDA
 553     {
 554         "hda",
 555         "Intel HD Audio",
 556         0,
 557         0,
 558         { .init_pci = intel_hda_and_codec_init }
 559     },
 560 #endif
 561
 562 #endif /* HAS_AUDIO_CHOICE */
 563
 564     { NULL, NULL, 0, 0, { NULL } }
 565 };
 566
 567 void select_soundhw(const char *optarg)
 568 {
 569     struct soundhw *c;
 570
 571     if (*optarg == '?') {
 572     show_valid_cards:
 573
 574         printf("Valid sound card names (comma separated):\n");
 575         for (c = soundhw; c->name; ++c) {
 576             printf ("%-11s %s\n", c->name, c->descr);
 577         }
 578         printf("\n-soundhw all will enable all of the above\n");
 579         exit(*optarg != '?');
 580     }
 581     else {
 582         size_t l;
 583         const char *p;
 584         char *e;
 585         int bad_card = 0;
 586
 587         if (!strcmp(optarg, "all")) {
 588             for (c = soundhw; c->name; ++c) {
 589                 c->enabled = 1;
 590             }
 591             return;
 592         }
 593
 594         p = optarg;
 595         while (*p) {
 596             e = strchr(p, ',');
 597             l = !e ? strlen(p) : (size_t) (e - p);
 598
 599             for (c = soundhw; c->name; ++c) {
 600                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 601                     c->enabled = 1;
 602                     break;
 603                 }
 604             }
 605
 606             if (!c->name) {
 607                 if (l > 80) {
 608                     fprintf(stderr,
 609                             "Unknown sound card name (too big to show)\n");
 610                 }
 611                 else {
 612                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 613                             (int) l, p);
 614                 }
 615                 bad_card = 1;
 616             }
 617             p += l + (e != NULL);
 618         }
 619
 620         if (bad_card) {
 621             goto show_valid_cards;
 622         }
 623     }
 624 }
 625
 626 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 627 {
 628     struct soundhw *c;
 629
 630     for (c = soundhw; c->name; ++c) {
 631         if (c->enabled) {
 632             if (c->isa) {
 633                 if (isa_pic) {
 634                     c->init.init_isa(isa_pic);
 635                 }
 636             } else {
 637                 if (pci_bus) {
 638                     c->init.init_pci(pci_bus);
 639                 }
 640             }
 641         }
 642     }
 643 }
 644 #else
 645 void select_soundhw(const char *optarg)
 646 {
 647 }
 648 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 649 {
 650 }
 651 #endif
 652
 653 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 654 {
 655     int ret;
 656
 657     if (strlen(str) != 36) {
 658         return -1;
 659     }
 660
 661     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 662                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 663                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 664                  &uuid[15]);
 665
 666     if (ret != 16) {
 667         return -1;
 668     }
 669 #ifdef TARGET_I386
 670     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 671 #endif
 672     return 0;
 673 }
 674
 675 void do_acpitable_option(const char *optarg)
 676 {
 677 #ifdef TARGET_I386
 678     if (acpi_table_add(optarg) < 0) {
 679         fprintf(stderr, "Wrong acpi table provided\n");
 680         exit(1);
 681     }
 682 #endif
 683 }
 684
 685 void do_smbios_option(const char *optarg)
 686 {
 687 #ifdef TARGET_I386
 688     if (smbios_entry_add(optarg) < 0) {
 689         fprintf(stderr, "Wrong smbios provided\n");
 690         exit(1);
 691     }
 692 #endif
 693 }
 694
 695 void cpudef_init(void)
 696 {
 697 #if defined(cpudef_setup)
 698     cpudef_setup(); /* parse cpu definitions in target config file */
 699 #endif
 700 }
 701
 702 int audio_available(void)
 703 {
 704 #ifdef HAS_AUDIO
 705     return 1;
 706 #else
 707     return 0;
 708 #endif
 709 }
 710
 711 int tcg_available(void)
 712 {
 713     return 1;
 714 }
 715
 716 int kvm_available(void)
 717 {
 718 #ifdef CONFIG_KVM
 719     return 1;
 720 #else
 721     return 0;
 722 #endif
 723 }
 724
 725 int xen_available(void)
 726 {
 727 #ifdef CONFIG_XEN
 728     return 1;
 729 #else
 730     return 0;
 731 #endif
 732 }