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 #include "hw/pcspk.h"
  46
  47 #ifdef TARGET_SPARC
  48 int graphic_width = 1024;
  49 int graphic_height = 768;
  50 int graphic_depth = 8;
  51 #else
  52 int graphic_width = 800;
  53 int graphic_height = 600;
  54 int graphic_depth = 15;
  55 #endif
  56
  57 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
  58
  59 #if defined(TARGET_ALPHA)
  60 #define QEMU_ARCH QEMU_ARCH_ALPHA
  61 #elif defined(TARGET_ARM)
  62 #define QEMU_ARCH QEMU_ARCH_ARM
  63 #elif defined(TARGET_CRIS)
  64 #define QEMU_ARCH QEMU_ARCH_CRIS
  65 #elif defined(TARGET_I386)
  66 #define QEMU_ARCH QEMU_ARCH_I386
  67 #elif defined(TARGET_M68K)
  68 #define QEMU_ARCH QEMU_ARCH_M68K
  69 #elif defined(TARGET_LM32)
  70 #define QEMU_ARCH QEMU_ARCH_LM32
  71 #elif defined(TARGET_MICROBLAZE)
  72 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  73 #elif defined(TARGET_MIPS)
  74 #define QEMU_ARCH QEMU_ARCH_MIPS
  75 #elif defined(TARGET_PPC)
  76 #define QEMU_ARCH QEMU_ARCH_PPC
  77 #elif defined(TARGET_S390X)
  78 #define QEMU_ARCH QEMU_ARCH_S390X
  79 #elif defined(TARGET_SH4)
  80 #define QEMU_ARCH QEMU_ARCH_SH4
  81 #elif defined(TARGET_SPARC)
  82 #define QEMU_ARCH QEMU_ARCH_SPARC
  83 #elif defined(TARGET_XTENSA)
  84 #define QEMU_ARCH QEMU_ARCH_XTENSA
  85 #endif
  86
  87 const uint32_t arch_type = QEMU_ARCH;
  88
  89 /***********************************************************/
  90 /* ram save/restore */
  91
  92 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
  93 #define RAM_SAVE_FLAG_COMPRESS 0x02
  94 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
  95 #define RAM_SAVE_FLAG_PAGE     0x08
  96 #define RAM_SAVE_FLAG_EOS      0x10
  97 #define RAM_SAVE_FLAG_CONTINUE 0x20
  98
  99 #ifdef __ALTIVEC__
 100 #include <altivec.h>
 101 #define VECTYPE        vector unsigned char
 102 #define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
 103 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
 104 #elif defined __SSE2__
 105 #include <emmintrin.h>
 106 #define VECTYPE        __m128i
 107 #define SPLAT(p)       _mm_set1_epi8(*(p))
 108 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
 109 #else
 110 #define VECTYPE        unsigned long
 111 #define SPLAT(p)       (*(p) * (~0UL / 255))
 112 #define ALL_EQ(v1, v2) ((v1) == (v2))
 113 #endif
 114
 115 static int is_dup_page(uint8_t *page)
 116 {
 117     VECTYPE *p = (VECTYPE *)page;
 118     VECTYPE val = SPLAT(page);
 119     int i;
 120
 121     for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
 122         if (!ALL_EQ(val, p[i])) {
 123             return 0;
 124         }
 125     }
 126
 127     return 1;
 128 }
 129
 130 static RAMBlock *last_block;
 131 static ram_addr_t last_offset;
 132
 133 static int ram_save_block(QEMUFile *f)
 134 {
 135     RAMBlock *block = last_block;
 136     ram_addr_t offset = last_offset;
 137     int bytes_sent = 0;
 138     MemoryRegion *mr;
 139
 140     if (!block)
 141         block = QLIST_FIRST(&ram_list.blocks);
 142
 143     do {
 144         mr = block->mr;
 145         if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE,
 146                                     DIRTY_MEMORY_MIGRATION)) {
 147             uint8_t *p;
 148             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 149
 150             memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
 151                                       DIRTY_MEMORY_MIGRATION);
 152
 153             p = memory_region_get_ram_ptr(mr) + offset;
 154
 155             if (is_dup_page(p)) {
 156                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 157                 if (!cont) {
 158                     qemu_put_byte(f, strlen(block->idstr));
 159                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 160                                     strlen(block->idstr));
 161                 }
 162                 qemu_put_byte(f, *p);
 163                 bytes_sent = 1;
 164             } else {
 165                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 166                 if (!cont) {
 167                     qemu_put_byte(f, strlen(block->idstr));
 168                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 169                                     strlen(block->idstr));
 170                 }
 171                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 172                 bytes_sent = TARGET_PAGE_SIZE;
 173             }
 174
 175             break;
 176         }
 177
 178         offset += TARGET_PAGE_SIZE;
 179         if (offset >= block->length) {
 180             offset = 0;
 181             block = QLIST_NEXT(block, next);
 182             if (!block)
 183                 block = QLIST_FIRST(&ram_list.blocks);
 184         }
 185     } while (block != last_block || offset != last_offset);
 186
 187     last_block = block;
 188     last_offset = offset;
 189
 190     return bytes_sent;
 191 }
 192
 193 static uint64_t bytes_transferred;
 194
 195 static ram_addr_t ram_save_remaining(void)
 196 {
 197     RAMBlock *block;
 198     ram_addr_t count = 0;
 199
 200     QLIST_FOREACH(block, &ram_list.blocks, next) {
 201         ram_addr_t addr;
 202         for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 203             if (memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 204                                         DIRTY_MEMORY_MIGRATION)) {
 205                 count++;
 206             }
 207         }
 208     }
 209
 210     return count;
 211 }
 212
 213 uint64_t ram_bytes_remaining(void)
 214 {
 215     return ram_save_remaining() * TARGET_PAGE_SIZE;
 216 }
 217
 218 uint64_t ram_bytes_transferred(void)
 219 {
 220     return bytes_transferred;
 221 }
 222
 223 uint64_t ram_bytes_total(void)
 224 {
 225     RAMBlock *block;
 226     uint64_t total = 0;
 227
 228     QLIST_FOREACH(block, &ram_list.blocks, next)
 229         total += block->length;
 230
 231     return total;
 232 }
 233
 234 static int block_compar(const void *a, const void *b)
 235 {
 236     RAMBlock * const *ablock = a;
 237     RAMBlock * const *bblock = b;
 238
 239     return strcmp((*ablock)->idstr, (*bblock)->idstr);
 240 }
 241
 242 static void sort_ram_list(void)
 243 {
 244     RAMBlock *block, *nblock, **blocks;
 245     int n;
 246     n = 0;
 247     QLIST_FOREACH(block, &ram_list.blocks, next) {
 248         ++n;
 249     }
 250     blocks = g_malloc(n * sizeof *blocks);
 251     n = 0;
 252     QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
 253         blocks[n++] = block;
 254         QLIST_REMOVE(block, next);
 255     }
 256     qsort(blocks, n, sizeof *blocks, block_compar);
 257     while (--n >= 0) {
 258         QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
 259     }
 260     g_free(blocks);
 261 }
 262
 263 int ram_save_live(QEMUFile *f, int stage, void *opaque)
 264 {
 265     ram_addr_t addr;
 266     uint64_t bytes_transferred_last;
 267     double bwidth = 0;
 268     uint64_t expected_time = 0;
 269     int ret;
 270
 271     if (stage < 0) {
 272         memory_global_dirty_log_stop();
 273         return 0;
 274     }
 275
 276     memory_global_sync_dirty_bitmap(get_system_memory());
 277
 278     if (stage == 1) {
 279         RAMBlock *block;
 280         bytes_transferred = 0;
 281         last_block = NULL;
 282         last_offset = 0;
 283         sort_ram_list();
 284
 285         /* Make sure all dirty bits are set */
 286         QLIST_FOREACH(block, &ram_list.blocks, next) {
 287             for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
 288                 if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
 289                                              DIRTY_MEMORY_MIGRATION)) {
 290                     memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
 291                 }
 292             }
 293         }
 294
 295         memory_global_dirty_log_start();
 296
 297         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 298
 299         QLIST_FOREACH(block, &ram_list.blocks, next) {
 300             qemu_put_byte(f, strlen(block->idstr));
 301             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 302             qemu_put_be64(f, block->length);
 303         }
 304     }
 305
 306     bytes_transferred_last = bytes_transferred;
 307     bwidth = qemu_get_clock_ns(rt_clock);
 308
 309     while ((ret = qemu_file_rate_limit(f)) == 0) {
 310         int bytes_sent;
 311
 312         bytes_sent = ram_save_block(f);
 313         bytes_transferred += bytes_sent;
 314         if (bytes_sent == 0) { /* no more blocks */
 315             break;
 316         }
 317     }
 318
 319     if (ret < 0) {
 320         return ret;
 321     }
 322
 323     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 324     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 325
 326     /* if we haven't transferred anything this round, force expected_time to a
 327      * a very high value, but without crashing */
 328     if (bwidth == 0) {
 329         bwidth = 0.000001;
 330     }
 331
 332     /* try transferring iterative blocks of memory */
 333     if (stage == 3) {
 334         int bytes_sent;
 335
 336         /* flush all remaining blocks regardless of rate limiting */
 337         while ((bytes_sent = ram_save_block(f)) != 0) {
 338             bytes_transferred += bytes_sent;
 339         }
 340         memory_global_dirty_log_stop();
 341     }
 342
 343     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 344
 345     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 346
 347     return (stage == 2) && (expected_time <= migrate_max_downtime());
 348 }
 349
 350 static inline void *host_from_stream_offset(QEMUFile *f,
 351                                             ram_addr_t offset,
 352                                             int flags)
 353 {
 354     static RAMBlock *block = NULL;
 355     char id[256];
 356     uint8_t len;
 357
 358     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 359         if (!block) {
 360             fprintf(stderr, "Ack, bad migration stream!\n");
 361             return NULL;
 362         }
 363
 364         return memory_region_get_ram_ptr(block->mr) + offset;
 365     }
 366
 367     len = qemu_get_byte(f);
 368     qemu_get_buffer(f, (uint8_t *)id, len);
 369     id[len] = 0;
 370
 371     QLIST_FOREACH(block, &ram_list.blocks, next) {
 372         if (!strncmp(id, block->idstr, sizeof(id)))
 373             return memory_region_get_ram_ptr(block->mr) + offset;
 374     }
 375
 376     fprintf(stderr, "Can't find block %s!\n", id);
 377     return NULL;
 378 }
 379
 380 int ram_load(QEMUFile *f, void *opaque, int version_id)
 381 {
 382     ram_addr_t addr;
 383     int flags;
 384     int error;
 385
 386     if (version_id < 4 || version_id > 4) {
 387         return -EINVAL;
 388     }
 389
 390     do {
 391         addr = qemu_get_be64(f);
 392
 393         flags = addr & ~TARGET_PAGE_MASK;
 394         addr &= TARGET_PAGE_MASK;
 395
 396         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 397             if (version_id == 4) {
 398                 /* Synchronize RAM block list */
 399                 char id[256];
 400                 ram_addr_t length;
 401                 ram_addr_t total_ram_bytes = addr;
 402
 403                 while (total_ram_bytes) {
 404                     RAMBlock *block;
 405                     uint8_t len;
 406
 407                     len = qemu_get_byte(f);
 408                     qemu_get_buffer(f, (uint8_t *)id, len);
 409                     id[len] = 0;
 410                     length = qemu_get_be64(f);
 411
 412                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 413                         if (!strncmp(id, block->idstr, sizeof(id))) {
 414                             if (block->length != length)
 415                                 return -EINVAL;
 416                             break;
 417                         }
 418                     }
 419
 420                     if (!block) {
 421                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 422                                 "accept migration\n", id);
 423                         return -EINVAL;
 424                     }
 425
 426                     total_ram_bytes -= length;
 427                 }
 428             }
 429         }
 430
 431         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 432             void *host;
 433             uint8_t ch;
 434
 435             host = host_from_stream_offset(f, addr, flags);
 436             if (!host) {
 437                 return -EINVAL;
 438             }
 439
 440             ch = qemu_get_byte(f);
 441             memset(host, ch, TARGET_PAGE_SIZE);
 442 #ifndef _WIN32
 443             if (ch == 0 &&
 444                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 445                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 446             }
 447 #endif
 448         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 449             void *host;
 450
 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) (ISABus *bus);
 472         int (*init_pci) (PCIBus *bus);
 473     } init;
 474 };
 475
 476 static struct soundhw soundhw[] = {
 477 #ifdef HAS_AUDIO_CHOICE
 478 #ifdef CONFIG_PCSPK
 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(ISABus *isa_bus, 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_bus) {
 634                     c->init.init_isa(isa_bus);
 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(ISABus *isa_bus, 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 }