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 #include "exec-memory.h"
  45
  46 #ifdef TARGET_SPARC
  47 int graphic_width = 1024;
  48 int graphic_height = 768;
  49 int graphic_depth = 8;
  50 #else
  51 int graphic_width = 800;
  52 int graphic_height = 600;
  53 int graphic_depth = 15;
  54 #endif
  55
  56 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
  57
  58 #if defined(TARGET_ALPHA)
  59 #define QEMU_ARCH QEMU_ARCH_ALPHA
  60 #elif defined(TARGET_ARM)
  61 #define QEMU_ARCH QEMU_ARCH_ARM
  62 #elif defined(TARGET_CRIS)
  63 #define QEMU_ARCH QEMU_ARCH_CRIS
  64 #elif defined(TARGET_I386)
  65 #define QEMU_ARCH QEMU_ARCH_I386
  66 #elif defined(TARGET_M68K)
  67 #define QEMU_ARCH QEMU_ARCH_M68K
  68 #elif defined(TARGET_LM32)
  69 #define QEMU_ARCH QEMU_ARCH_LM32
  70 #elif defined(TARGET_MICROBLAZE)
  71 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  72 #elif defined(TARGET_MIPS)
  73 #define QEMU_ARCH QEMU_ARCH_MIPS
  74 #elif defined(TARGET_PPC)
  75 #define QEMU_ARCH QEMU_ARCH_PPC
  76 #elif defined(TARGET_S390X)
  77 #define QEMU_ARCH QEMU_ARCH_S390X
  78 #elif defined(TARGET_SH4)
  79 #define QEMU_ARCH QEMU_ARCH_SH4
  80 #elif defined(TARGET_SPARC)
  81 #define QEMU_ARCH QEMU_ARCH_SPARC
  82 #elif defined(TARGET_XTENSA)
  83 #define QEMU_ARCH QEMU_ARCH_XTENSA
  84 #endif
  85
  86 const uint32_t arch_type = QEMU_ARCH;
  87
  88 /***********************************************************/
  89 /* ram save/restore */
  90
  91 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
  92 #define RAM_SAVE_FLAG_COMPRESS 0x02
  93 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
  94 #define RAM_SAVE_FLAG_PAGE     0x08
  95 #define RAM_SAVE_FLAG_EOS      0x10
  96 #define RAM_SAVE_FLAG_CONTINUE 0x20
  97
  98 #ifdef __ALTIVEC__
  99 #include <altivec.h>
 100 #define VECTYPE        vector unsigned char
 101 #define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
 102 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
 103 #elif defined __SSE2__
 104 #include <emmintrin.h>
 105 #define VECTYPE        __m128i
 106 #define SPLAT(p)       _mm_set1_epi8(*(p))
 107 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
 108 #else
 109 #define VECTYPE        unsigned long
 110 #define SPLAT(p)       (*(p) * (~0UL / 255))
 111 #define ALL_EQ(v1, v2) ((v1) == (v2))
 112 #endif
 113
 114 static int is_dup_page(uint8_t *page)
 115 {
 116     VECTYPE *p = (VECTYPE *)page;
 117     VECTYPE val = SPLAT(page);
 118     int i;
 119
 120     for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
 121         if (!ALL_EQ(val, p[i])) {
 122             return 0;
 123         }
 124     }
 125
 126     return 1;
 127 }
 128
 129 static RAMBlock *last_block;
 130 static ram_addr_t last_offset;
 131
 132 static int ram_save_block(QEMUFile *f)
 133 {
 134     RAMBlock *block = last_block;
 135     ram_addr_t offset = last_offset;
 136     int bytes_sent = 0;
 137     MemoryRegion *mr;
 138
 139     if (!block)
 140         block = QLIST_FIRST(&ram_list.blocks);
 141
 142     do {
 143         mr = block->mr;
 144         if (memory_region_get_dirty(mr, offset, DIRTY_MEMORY_MIGRATION)) {
 145             uint8_t *p;
 146             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 147
 148             memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
 149                                       DIRTY_MEMORY_MIGRATION);
 150
 151             p = memory_region_get_ram_ptr(mr) + offset;
 152
 153             if (is_dup_page(p)) {
 154                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 155                 if (!cont) {
 156                     qemu_put_byte(f, strlen(block->idstr));
 157                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 158                                     strlen(block->idstr));
 159                 }
 160                 qemu_put_byte(f, *p);
 161                 bytes_sent = 1;
 162             } else {
 163                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 164                 if (!cont) {
 165                     qemu_put_byte(f, strlen(block->idstr));
 166                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 167                                     strlen(block->idstr));
 168                 }
 169                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 170                 bytes_sent = TARGET_PAGE_SIZE;
 171             }
 172
 173             break;
 174         }
 175
 176         offset += TARGET_PAGE_SIZE;
 177         if (offset >= block->length) {
 178             offset = 0;
 179             block = QLIST_NEXT(block, next);
 180             if (!block)
 181                 block = QLIST_FIRST(&ram_list.blocks);
 182         }
 183     } while (block != last_block || offset != last_offset);
 184
 185     last_block = block;
 186     last_offset = offset;
 187
 188     return bytes_sent;
 189 }
 190
 191 static uint64_t bytes_transferred;
 192
 193 static ram_addr_t ram_save_remaining(void)
 194 {
 195     RAMBlock *block;
 196     ram_addr_t count = 0;
 197
 198     QLIST_FOREACH(block, &ram_list.blocks, next) {
 199         ram_addr_t addr;
 200         for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 201             if (memory_region_get_dirty(block->mr, addr,
 202                                         DIRTY_MEMORY_MIGRATION)) {
 203                 count++;
 204             }
 205         }
 206     }
 207
 208     return count;
 209 }
 210
 211 uint64_t ram_bytes_remaining(void)
 212 {
 213     return ram_save_remaining() * TARGET_PAGE_SIZE;
 214 }
 215
 216 uint64_t ram_bytes_transferred(void)
 217 {
 218     return bytes_transferred;
 219 }
 220
 221 uint64_t ram_bytes_total(void)
 222 {
 223     RAMBlock *block;
 224     uint64_t total = 0;
 225
 226     QLIST_FOREACH(block, &ram_list.blocks, next)
 227         total += block->length;
 228
 229     return total;
 230 }
 231
 232 static int block_compar(const void *a, const void *b)
 233 {
 234     RAMBlock * const *ablock = a;
 235     RAMBlock * const *bblock = b;
 236
 237     return strcmp((*ablock)->idstr, (*bblock)->idstr);
 238 }
 239
 240 static void sort_ram_list(void)
 241 {
 242     RAMBlock *block, *nblock, **blocks;
 243     int n;
 244     n = 0;
 245     QLIST_FOREACH(block, &ram_list.blocks, next) {
 246         ++n;
 247     }
 248     blocks = g_malloc(n * sizeof *blocks);
 249     n = 0;
 250     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 251         blocks[n++] = block;
 252         QLIST_REMOVE(block, next);
 253     }
 254     qsort(blocks, n, sizeof *blocks, block_compar);
 255     while (--n >= 0) {
 256         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 257     }
 258     g_free(blocks);
 259 }
 260
 261 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 262 {
 263     ram_addr_t addr;
 264     uint64_t bytes_transferred_last;
 265     double bwidth = 0;
 266     uint64_t expected_time = 0;
 267     int ret;
 268
 269     if (stage < 0) {
 270         memory_global_dirty_log_stop();
 271         return 0;
 272     }
 273
 274     memory_global_sync_dirty_bitmap(get_system_memory());
 275
 276     if (stage == 1) {
 277         RAMBlock *block;
 278         bytes_transferred = 0;
 279         last_block = NULL;
 280         last_offset = 0;
 281         sort_ram_list();
 282
 283         /* Make sure all dirty bits are set */
 284         QLIST_FOREACH(block, &ram_list.blocks, next) {
 285             for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 286                 if (!memory_region_get_dirty(block->mr, addr,
 287                                              DIRTY_MEMORY_MIGRATION)) {
 288                     memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
 289                 }
 290             }
 291         }
 292
 293         memory_global_dirty_log_start();
 294
 295         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 296
 297         QLIST_FOREACH(block, &ram_list.blocks, next) {
 298             qemu_put_byte(f, strlen(block->idstr));
 299             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 300             qemu_put_be64(f, block->length);
 301         }
 302     }
 303
 304     bytes_transferred_last = bytes_transferred;
 305     bwidth = qemu_get_clock_ns(rt_clock);
 306
 307     while ((ret = qemu_file_rate_limit(f)) == 0) {
 308         int bytes_sent;
 309
 310         bytes_sent = ram_save_block(f);
 311         bytes_transferred += bytes_sent;
 312         if (bytes_sent == 0) { /* no more blocks */
 313             break;
 314         }
 315     }
 316
 317     if (ret < 0) {
 318         return ret;
 319     }
 320
 321     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 322     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 323
 324     /* if we haven't transferred anything this round, force expected_time to a
 325      * a very high value, but without crashing */
 326     if (bwidth == 0) {
 327         bwidth = 0.000001;
 328     }
 329
 330     /* try transferring iterative blocks of memory */
 331     if (stage == 3) {
 332         int bytes_sent;
 333
 334         /* flush all remaining blocks regardless of rate limiting */
 335         while ((bytes_sent = ram_save_block(f)) != 0) {
 336             bytes_transferred += bytes_sent;
 337         }
 338         memory_global_dirty_log_stop();
 339     }
 340
 341     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 342
 343     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 344
 345     return (stage == 2) && (expected_time <= migrate_max_downtime());
 346 }
 347
 348 static inline void *host_from_stream_offset(QEMUFile *f,
 349                                             ram_addr_t offset,
 350                                             int flags)
 351 {
 352     static RAMBlock *block = NULL;
 353     char id[256];
 354     uint8_t len;
 355
 356     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 357         if (!block) {
 358             fprintf(stderr, "Ack, bad migration stream!\n");
 359             return NULL;
 360         }
 361
 362         return memory_region_get_ram_ptr(block->mr) + offset;
 363     }
 364
 365     len = qemu_get_byte(f);
 366     qemu_get_buffer(f, (uint8_t *)id, len);
 367     id[len] = 0;
 368
 369     QLIST_FOREACH(block, &ram_list.blocks, next) {
 370         if (!strncmp(id, block->idstr, sizeof(id)))
 371             return memory_region_get_ram_ptr(block->mr) + offset;
 372     }
 373
 374     fprintf(stderr, "Can't find block %s!\n", id);
 375     return NULL;
 376 }
 377
 378 int ram_load(QEMUFile *f, void *opaque, int version_id)
 379 {
 380     ram_addr_t addr;
 381     int flags;
 382     int error;
 383
 384     if (version_id < 4 || version_id > 4) {
 385         return -EINVAL;
 386     }
 387
 388     do {
 389         addr = qemu_get_be64(f);
 390
 391         flags = addr & ~TARGET_PAGE_MASK;
 392         addr &= TARGET_PAGE_MASK;
 393
 394         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 395             if (version_id == 4) {
 396                 /* Synchronize RAM block list */
 397                 char id[256];
 398                 ram_addr_t length;
 399                 ram_addr_t total_ram_bytes = addr;
 400
 401                 while (total_ram_bytes) {
 402                     RAMBlock *block;
 403                     uint8_t len;
 404
 405                     len = qemu_get_byte(f);
 406                     qemu_get_buffer(f, (uint8_t *)id, len);
 407                     id[len] = 0;
 408                     length = qemu_get_be64(f);
 409
 410                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 411                         if (!strncmp(id, block->idstr, sizeof(id))) {
 412                             if (block->length != length)
 413                                 return -EINVAL;
 414                             break;
 415                         }
 416                     }
 417
 418                     if (!block) {
 419                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 420                                 "accept migration\n", id);
 421                         return -EINVAL;
 422                     }
 423
 424                     total_ram_bytes -= length;
 425                 }
 426             }
 427         }
 428
 429         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 430             void *host;
 431             uint8_t ch;
 432
 433             host = host_from_stream_offset(f, addr, flags);
 434             if (!host) {
 435                 return -EINVAL;
 436             }
 437
 438             ch = qemu_get_byte(f);
 439             memset(host, ch, TARGET_PAGE_SIZE);
 440 #ifndef _WIN32
 441             if (ch == 0 &&
 442                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 443                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 444             }
 445 #endif
 446         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 447             void *host;
 448
 449             host = host_from_stream_offset(f, addr, flags);
 450
 451             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 452         }
 453         error = qemu_file_get_error(f);
 454         if (error) {
 455             return error;
 456         }
 457     } while (!(flags & RAM_SAVE_FLAG_EOS));
 458
 459     return 0;
 460 }
 461
 462 #ifdef HAS_AUDIO
 463 struct soundhw {
 464     const char *name;
 465     const char *descr;
 466     int enabled;
 467     int isa;
 468     union {
 469         int (*init_isa) (ISABus *bus);
 470         int (*init_pci) (PCIBus *bus);
 471     } init;
 472 };
 473
 474 static struct soundhw soundhw[] = {
 475 #ifdef HAS_AUDIO_CHOICE
 476 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 477     {
 478         "pcspk",
 479         "PC speaker",
 480         0,
 481         1,
 482         { .init_isa = pcspk_audio_init }
 483     },
 484 #endif
 485
 486 #ifdef CONFIG_SB16
 487     {
 488         "sb16",
 489         "Creative Sound Blaster 16",
 490         0,
 491         1,
 492         { .init_isa = SB16_init }
 493     },
 494 #endif
 495
 496 #ifdef CONFIG_CS4231A
 497     {
 498         "cs4231a",
 499         "CS4231A",
 500         0,
 501         1,
 502         { .init_isa = cs4231a_init }
 503     },
 504 #endif
 505
 506 #ifdef CONFIG_ADLIB
 507     {
 508         "adlib",
 509 #ifdef HAS_YMF262
 510         "Yamaha YMF262 (OPL3)",
 511 #else
 512         "Yamaha YM3812 (OPL2)",
 513 #endif
 514         0,
 515         1,
 516         { .init_isa = Adlib_init }
 517     },
 518 #endif
 519
 520 #ifdef CONFIG_GUS
 521     {
 522         "gus",
 523         "Gravis Ultrasound GF1",
 524         0,
 525         1,
 526         { .init_isa = GUS_init }
 527     },
 528 #endif
 529
 530 #ifdef CONFIG_AC97
 531     {
 532         "ac97",
 533         "Intel 82801AA AC97 Audio",
 534         0,
 535         0,
 536         { .init_pci = ac97_init }
 537     },
 538 #endif
 539
 540 #ifdef CONFIG_ES1370
 541     {
 542         "es1370",
 543         "ENSONIQ AudioPCI ES1370",
 544         0,
 545         0,
 546         { .init_pci = es1370_init }
 547     },
 548 #endif
 549
 550 #ifdef CONFIG_HDA
 551     {
 552         "hda",
 553         "Intel HD Audio",
 554         0,
 555         0,
 556         { .init_pci = intel_hda_and_codec_init }
 557     },
 558 #endif
 559
 560 #endif /* HAS_AUDIO_CHOICE */
 561
 562     { NULL, NULL, 0, 0, { NULL } }
 563 };
 564
 565 void select_soundhw(const char *optarg)
 566 {
 567     struct soundhw *c;
 568
 569     if (*optarg == '?') {
 570     show_valid_cards:
 571
 572         printf("Valid sound card names (comma separated):\n");
 573         for (c = soundhw; c->name; ++c) {
 574             printf ("%-11s %s\n", c->name, c->descr);
 575         }
 576         printf("\n-soundhw all will enable all of the above\n");
 577         exit(*optarg != '?');
 578     }
 579     else {
 580         size_t l;
 581         const char *p;
 582         char *e;
 583         int bad_card = 0;
 584
 585         if (!strcmp(optarg, "all")) {
 586             for (c = soundhw; c->name; ++c) {
 587                 c->enabled = 1;
 588             }
 589             return;
 590         }
 591
 592         p = optarg;
 593         while (*p) {
 594             e = strchr(p, ',');
 595             l = !e ? strlen(p) : (size_t) (e - p);
 596
 597             for (c = soundhw; c->name; ++c) {
 598                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 599                     c->enabled = 1;
 600                     break;
 601                 }
 602             }
 603
 604             if (!c->name) {
 605                 if (l > 80) {
 606                     fprintf(stderr,
 607                             "Unknown sound card name (too big to show)\n");
 608                 }
 609                 else {
 610                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 611                             (int) l, p);
 612                 }
 613                 bad_card = 1;
 614             }
 615             p += l + (e != NULL);
 616         }
 617
 618         if (bad_card) {
 619             goto show_valid_cards;
 620         }
 621     }
 622 }
 623
 624 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 625 {
 626     struct soundhw *c;
 627
 628     for (c = soundhw; c->name; ++c) {
 629         if (c->enabled) {
 630             if (c->isa) {
 631                 if (isa_bus) {
 632                     c->init.init_isa(isa_bus);
 633                 }
 634             } else {
 635                 if (pci_bus) {
 636                     c->init.init_pci(pci_bus);
 637                 }
 638             }
 639         }
 640     }
 641 }
 642 #else
 643 void select_soundhw(const char *optarg)
 644 {
 645 }
 646 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 647 {
 648 }
 649 #endif
 650
 651 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 652 {
 653     int ret;
 654
 655     if (strlen(str) != 36) {
 656         return -1;
 657     }
 658
 659     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 660                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 661                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 662                  &uuid[15]);
 663
 664     if (ret != 16) {
 665         return -1;
 666     }
 667 #ifdef TARGET_I386
 668     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 669 #endif
 670     return 0;
 671 }
 672
 673 void do_acpitable_option(const char *optarg)
 674 {
 675 #ifdef TARGET_I386
 676     if (acpi_table_add(optarg) < 0) {
 677         fprintf(stderr, "Wrong acpi table provided\n");
 678         exit(1);
 679     }
 680 #endif
 681 }
 682
 683 void do_smbios_option(const char *optarg)
 684 {
 685 #ifdef TARGET_I386
 686     if (smbios_entry_add(optarg) < 0) {
 687         fprintf(stderr, "Wrong smbios provided\n");
 688         exit(1);
 689     }
 690 #endif
 691 }
 692
 693 void cpudef_init(void)
 694 {
 695 #if defined(cpudef_setup)
 696     cpudef_setup(); /* parse cpu definitions in target config file */
 697 #endif
 698 }
 699
 700 int audio_available(void)
 701 {
 702 #ifdef HAS_AUDIO
 703     return 1;
 704 #else
 705     return 0;
 706 #endif
 707 }
 708
 709 int tcg_available(void)
 710 {
 711     return 1;
 712 }
 713
 714 int kvm_available(void)
 715 {
 716 #ifdef CONFIG_KVM
 717     return 1;
 718 #else
 719     return 0;
 720 #endif
 721 }
 722
 723 int xen_available(void)
 724 {
 725 #ifdef CONFIG_XEN
 726     return 1;
 727 #else
 728     return 0;
 729 #endif
 730 }