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     int ret;
 260
 261     if (stage < 0) {
 262         cpu_physical_memory_set_dirty_tracking(0);
 263         return 0;
 264     }
 265
 266     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 267         qemu_file_set_error(f, -EINVAL);
 268         return -EINVAL;
 269     }
 270
 271     if (stage == 1) {
 272         RAMBlock *block;
 273         bytes_transferred = 0;
 274         last_block = NULL;
 275         last_offset = 0;
 276         sort_ram_list();
 277
 278         /* Make sure all dirty bits are set */
 279         QLIST_FOREACH(block, &ram_list.blocks, next) {
 280             for (addr = block->offset; addr < block->offset + block->length;
 281                  addr += TARGET_PAGE_SIZE) {
 282                 if (!cpu_physical_memory_get_dirty(addr,
 283                                                    MIGRATION_DIRTY_FLAG)) {
 284                     cpu_physical_memory_set_dirty(addr);
 285                 }
 286             }
 287         }
 288
 289         /* Enable dirty memory tracking */
 290         cpu_physical_memory_set_dirty_tracking(1);
 291
 292         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 293
 294         QLIST_FOREACH(block, &ram_list.blocks, next) {
 295             qemu_put_byte(f, strlen(block->idstr));
 296             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 297             qemu_put_be64(f, block->length);
 298         }
 299     }
 300
 301     bytes_transferred_last = bytes_transferred;
 302     bwidth = qemu_get_clock_ns(rt_clock);
 303
 304     while ((ret = qemu_file_rate_limit(f)) == 0) {
 305         int bytes_sent;
 306
 307         bytes_sent = ram_save_block(f);
 308         bytes_transferred += bytes_sent;
 309         if (bytes_sent == 0) { /* no more blocks */
 310             break;
 311         }
 312     }
 313
 314     if (ret < 0) {
 315         return ret;
 316     }
 317
 318     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 319     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 320
 321     /* if we haven't transferred anything this round, force expected_time to a
 322      * a very high value, but without crashing */
 323     if (bwidth == 0) {
 324         bwidth = 0.000001;
 325     }
 326
 327     /* try transferring iterative blocks of memory */
 328     if (stage == 3) {
 329         int bytes_sent;
 330
 331         /* flush all remaining blocks regardless of rate limiting */
 332         while ((bytes_sent = ram_save_block(f)) != 0) {
 333             bytes_transferred += bytes_sent;
 334         }
 335         cpu_physical_memory_set_dirty_tracking(0);
 336     }
 337
 338     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 339
 340     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 341
 342     return (stage == 2) && (expected_time <= migrate_max_downtime());
 343 }
 344
 345 static inline void *host_from_stream_offset(QEMUFile *f,
 346                                             ram_addr_t offset,
 347                                             int flags)
 348 {
 349     static RAMBlock *block = NULL;
 350     char id[256];
 351     uint8_t len;
 352
 353     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 354         if (!block) {
 355             fprintf(stderr, "Ack, bad migration stream!\n");
 356             return NULL;
 357         }
 358
 359         return block->host + offset;
 360     }
 361
 362     len = qemu_get_byte(f);
 363     qemu_get_buffer(f, (uint8_t *)id, len);
 364     id[len] = 0;
 365
 366     QLIST_FOREACH(block, &ram_list.blocks, next) {
 367         if (!strncmp(id, block->idstr, sizeof(id)))
 368             return block->host + offset;
 369     }
 370
 371     fprintf(stderr, "Can't find block %s!\n", id);
 372     return NULL;
 373 }
 374
 375 int ram_load(QEMUFile *f, void *opaque, int version_id)
 376 {
 377     ram_addr_t addr;
 378     int flags;
 379     int error;
 380
 381     if (version_id < 3 || version_id > 4) {
 382         return -EINVAL;
 383     }
 384
 385     do {
 386         addr = qemu_get_be64(f);
 387
 388         flags = addr & ~TARGET_PAGE_MASK;
 389         addr &= TARGET_PAGE_MASK;
 390
 391         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 392             if (version_id == 3) {
 393                 if (addr != ram_bytes_total()) {
 394                     return -EINVAL;
 395                 }
 396             } else {
 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             if (version_id == 3)
 435                 host = qemu_get_ram_ptr(addr);
 436             else
 437                 host = host_from_stream_offset(f, addr, flags);
 438             if (!host) {
 439                 return -EINVAL;
 440             }
 441
 442             ch = qemu_get_byte(f);
 443             memset(host, ch, TARGET_PAGE_SIZE);
 444 #ifndef _WIN32
 445             if (ch == 0 &&
 446                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 447                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 448             }
 449 #endif
 450         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 451             void *host;
 452
 453             if (version_id == 3)
 454                 host = qemu_get_ram_ptr(addr);
 455             else
 456                 host = host_from_stream_offset(f, addr, flags);
 457
 458             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 459         }
 460         error = qemu_file_get_error(f);
 461         if (error) {
 462             return error;
 463         }
 464     } while (!(flags & RAM_SAVE_FLAG_EOS));
 465
 466     return 0;
 467 }
 468
 469 #ifdef HAS_AUDIO
 470 struct soundhw {
 471     const char *name;
 472     const char *descr;
 473     int enabled;
 474     int isa;
 475     union {
 476         int (*init_isa) (qemu_irq *pic);
 477         int (*init_pci) (PCIBus *bus);
 478     } init;
 479 };
 480
 481 static struct soundhw soundhw[] = {
 482 #ifdef HAS_AUDIO_CHOICE
 483 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 484     {
 485         "pcspk",
 486         "PC speaker",
 487         0,
 488         1,
 489         { .init_isa = pcspk_audio_init }
 490     },
 491 #endif
 492
 493 #ifdef CONFIG_SB16
 494     {
 495         "sb16",
 496         "Creative Sound Blaster 16",
 497         0,
 498         1,
 499         { .init_isa = SB16_init }
 500     },
 501 #endif
 502
 503 #ifdef CONFIG_CS4231A
 504     {
 505         "cs4231a",
 506         "CS4231A",
 507         0,
 508         1,
 509         { .init_isa = cs4231a_init }
 510     },
 511 #endif
 512
 513 #ifdef CONFIG_ADLIB
 514     {
 515         "adlib",
 516 #ifdef HAS_YMF262
 517         "Yamaha YMF262 (OPL3)",
 518 #else
 519         "Yamaha YM3812 (OPL2)",
 520 #endif
 521         0,
 522         1,
 523         { .init_isa = Adlib_init }
 524     },
 525 #endif
 526
 527 #ifdef CONFIG_GUS
 528     {
 529         "gus",
 530         "Gravis Ultrasound GF1",
 531         0,
 532         1,
 533         { .init_isa = GUS_init }
 534     },
 535 #endif
 536
 537 #ifdef CONFIG_AC97
 538     {
 539         "ac97",
 540         "Intel 82801AA AC97 Audio",
 541         0,
 542         0,
 543         { .init_pci = ac97_init }
 544     },
 545 #endif
 546
 547 #ifdef CONFIG_ES1370
 548     {
 549         "es1370",
 550         "ENSONIQ AudioPCI ES1370",
 551         0,
 552         0,
 553         { .init_pci = es1370_init }
 554     },
 555 #endif
 556
 557 #ifdef CONFIG_HDA
 558     {
 559         "hda",
 560         "Intel HD Audio",
 561         0,
 562         0,
 563         { .init_pci = intel_hda_and_codec_init }
 564     },
 565 #endif
 566
 567 #endif /* HAS_AUDIO_CHOICE */
 568
 569     { NULL, NULL, 0, 0, { NULL } }
 570 };
 571
 572 void select_soundhw(const char *optarg)
 573 {
 574     struct soundhw *c;
 575
 576     if (*optarg == '?') {
 577     show_valid_cards:
 578
 579         printf("Valid sound card names (comma separated):\n");
 580         for (c = soundhw; c->name; ++c) {
 581             printf ("%-11s %s\n", c->name, c->descr);
 582         }
 583         printf("\n-soundhw all will enable all of the above\n");
 584         exit(*optarg != '?');
 585     }
 586     else {
 587         size_t l;
 588         const char *p;
 589         char *e;
 590         int bad_card = 0;
 591
 592         if (!strcmp(optarg, "all")) {
 593             for (c = soundhw; c->name; ++c) {
 594                 c->enabled = 1;
 595             }
 596             return;
 597         }
 598
 599         p = optarg;
 600         while (*p) {
 601             e = strchr(p, ',');
 602             l = !e ? strlen(p) : (size_t) (e - p);
 603
 604             for (c = soundhw; c->name; ++c) {
 605                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 606                     c->enabled = 1;
 607                     break;
 608                 }
 609             }
 610
 611             if (!c->name) {
 612                 if (l > 80) {
 613                     fprintf(stderr,
 614                             "Unknown sound card name (too big to show)\n");
 615                 }
 616                 else {
 617                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 618                             (int) l, p);
 619                 }
 620                 bad_card = 1;
 621             }
 622             p += l + (e != NULL);
 623         }
 624
 625         if (bad_card) {
 626             goto show_valid_cards;
 627         }
 628     }
 629 }
 630
 631 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 632 {
 633     struct soundhw *c;
 634
 635     for (c = soundhw; c->name; ++c) {
 636         if (c->enabled) {
 637             if (c->isa) {
 638                 if (isa_pic) {
 639                     c->init.init_isa(isa_pic);
 640                 }
 641             } else {
 642                 if (pci_bus) {
 643                     c->init.init_pci(pci_bus);
 644                 }
 645             }
 646         }
 647     }
 648 }
 649 #else
 650 void select_soundhw(const char *optarg)
 651 {
 652 }
 653 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
 654 {
 655 }
 656 #endif
 657
 658 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 659 {
 660     int ret;
 661
 662     if (strlen(str) != 36) {
 663         return -1;
 664     }
 665
 666     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 667                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 668                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 669                  &uuid[15]);
 670
 671     if (ret != 16) {
 672         return -1;
 673     }
 674 #ifdef TARGET_I386
 675     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 676 #endif
 677     return 0;
 678 }
 679
 680 void do_acpitable_option(const char *optarg)
 681 {
 682 #ifdef TARGET_I386
 683     if (acpi_table_add(optarg) < 0) {
 684         fprintf(stderr, "Wrong acpi table provided\n");
 685         exit(1);
 686     }
 687 #endif
 688 }
 689
 690 void do_smbios_option(const char *optarg)
 691 {
 692 #ifdef TARGET_I386
 693     if (smbios_entry_add(optarg) < 0) {
 694         fprintf(stderr, "Wrong smbios provided\n");
 695         exit(1);
 696     }
 697 #endif
 698 }
 699
 700 void cpudef_init(void)
 701 {
 702 #if defined(cpudef_setup)
 703     cpudef_setup(); /* parse cpu definitions in target config file */
 704 #endif
 705 }
 706
 707 int audio_available(void)
 708 {
 709 #ifdef HAS_AUDIO
 710     return 1;
 711 #else
 712     return 0;
 713 #endif
 714 }
 715
 716 int tcg_available(void)
 717 {
 718     return 1;
 719 }
 720
 721 int kvm_available(void)
 722 {
 723 #ifdef CONFIG_KVM
 724     return 1;
 725 #else
 726     return 0;
 727 #endif
 728 }
 729
 730 int xen_available(void)
 731 {
 732 #ifdef CONFIG_XEN
 733     return 1;
 734 #else
 735     return 0;
 736 #endif
 737 }