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