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         cpu_physical_memory_set_dirty_tracking(0);
 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         /* Enable dirty memory tracking */
 278         cpu_physical_memory_set_dirty_tracking(1);
 279
 280         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 281
 282         QLIST_FOREACH(block, &ram_list.blocks, next) {
 283             qemu_put_byte(f, strlen(block->idstr));
 284             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 285             qemu_put_be64(f, block->length);
 286         }
 287     }
 288
 289     bytes_transferred_last = bytes_transferred;
 290     bwidth = qemu_get_clock_ns(rt_clock);
 291
 292     while ((ret = qemu_file_rate_limit(f)) == 0) {
 293         int bytes_sent;
 294
 295         bytes_sent = ram_save_block(f);
 296         bytes_transferred += bytes_sent;
 297         if (bytes_sent == 0) { /* no more blocks */
 298             break;
 299         }
 300     }
 301
 302     if (ret < 0) {
 303         return ret;
 304     }
 305
 306     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 307     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 308
 309     /* if we haven't transferred anything this round, force expected_time to a
 310      * a very high value, but without crashing */
 311     if (bwidth == 0) {
 312         bwidth = 0.000001;
 313     }
 314
 315     /* try transferring iterative blocks of memory */
 316     if (stage == 3) {
 317         int bytes_sent;
 318
 319         /* flush all remaining blocks regardless of rate limiting */
 320         while ((bytes_sent = ram_save_block(f)) != 0) {
 321             bytes_transferred += bytes_sent;
 322         }
 323         cpu_physical_memory_set_dirty_tracking(0);
 324     }
 325
 326     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 327
 328     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 329
 330     return (stage == 2) && (expected_time <= migrate_max_downtime());
 331 }
 332
 333 static inline void *host_from_stream_offset(QEMUFile *f,
 334                                             ram_addr_t offset,
 335                                             int flags)
 336 {
 337     static RAMBlock *block = NULL;
 338     char id[256];
 339     uint8_t len;
 340
 341     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 342         if (!block) {
 343             fprintf(stderr, "Ack, bad migration stream!\n");
 344             return NULL;
 345         }
 346
 347         return memory_region_get_ram_ptr(block->mr) + offset;
 348     }
 349
 350     len = qemu_get_byte(f);
 351     qemu_get_buffer(f, (uint8_t *)id, len);
 352     id[len] = 0;
 353
 354     QLIST_FOREACH(block, &ram_list.blocks, next) {
 355         if (!strncmp(id, block->idstr, sizeof(id)))
 356             return memory_region_get_ram_ptr(block->mr) + offset;
 357     }
 358
 359     fprintf(stderr, "Can't find block %s!\n", id);
 360     return NULL;
 361 }
 362
 363 int ram_load(QEMUFile *f, void *opaque, int version_id)
 364 {
 365     ram_addr_t addr;
 366     int flags;
 367     int error;
 368
 369     if (version_id < 4 || version_id > 4) {
 370         return -EINVAL;
 371     }
 372
 373     do {
 374         addr = qemu_get_be64(f);
 375
 376         flags = addr & ~TARGET_PAGE_MASK;
 377         addr &= TARGET_PAGE_MASK;
 378
 379         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 380             if (version_id == 4) {
 381                 /* Synchronize RAM block list */
 382                 char id[256];
 383                 ram_addr_t length;
 384                 ram_addr_t total_ram_bytes = addr;
 385
 386                 while (total_ram_bytes) {
 387                     RAMBlock *block;
 388                     uint8_t len;
 389
 390                     len = qemu_get_byte(f);
 391                     qemu_get_buffer(f, (uint8_t *)id, len);
 392                     id[len] = 0;
 393                     length = qemu_get_be64(f);
 394
 395                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 396                         if (!strncmp(id, block->idstr, sizeof(id))) {
 397                             if (block->length != length)
 398                                 return -EINVAL;
 399                             break;
 400                         }
 401                     }
 402
 403                     if (!block) {
 404                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 405                                 "accept migration\n", id);
 406                         return -EINVAL;
 407                     }
 408
 409                     total_ram_bytes -= length;
 410                 }
 411             }
 412         }
 413
 414         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 415             void *host;
 416             uint8_t ch;
 417
 418             host = host_from_stream_offset(f, addr, flags);
 419             if (!host) {
 420                 return -EINVAL;
 421             }
 422
 423             ch = qemu_get_byte(f);
 424             memset(host, ch, TARGET_PAGE_SIZE);
 425 #ifndef _WIN32
 426             if (ch == 0 &&
 427                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 428                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 429             }
 430 #endif
 431         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 432             void *host;
 433
 434             host = host_from_stream_offset(f, addr, flags);
 435
 436             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 437         }
 438         error = qemu_file_get_error(f);
 439         if (error) {
 440             return error;
 441         }
 442     } while (!(flags & RAM_SAVE_FLAG_EOS));
 443
 444     return 0;
 445 }
 446
 447 #ifdef HAS_AUDIO
 448 struct soundhw {
 449     const char *name;
 450     const char *descr;
 451     int enabled;
 452     int isa;
 453     union {
 454         int (*init_isa) (ISABus *bus);
 455         int (*init_pci) (PCIBus *bus);
 456     } init;
 457 };
 458
 459 static struct soundhw soundhw[] = {
 460 #ifdef HAS_AUDIO_CHOICE
 461 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 462     {
 463         "pcspk",
 464         "PC speaker",
 465         0,
 466         1,
 467         { .init_isa = pcspk_audio_init }
 468     },
 469 #endif
 470
 471 #ifdef CONFIG_SB16
 472     {
 473         "sb16",
 474         "Creative Sound Blaster 16",
 475         0,
 476         1,
 477         { .init_isa = SB16_init }
 478     },
 479 #endif
 480
 481 #ifdef CONFIG_CS4231A
 482     {
 483         "cs4231a",
 484         "CS4231A",
 485         0,
 486         1,
 487         { .init_isa = cs4231a_init }
 488     },
 489 #endif
 490
 491 #ifdef CONFIG_ADLIB
 492     {
 493         "adlib",
 494 #ifdef HAS_YMF262
 495         "Yamaha YMF262 (OPL3)",
 496 #else
 497         "Yamaha YM3812 (OPL2)",
 498 #endif
 499         0,
 500         1,
 501         { .init_isa = Adlib_init }
 502     },
 503 #endif
 504
 505 #ifdef CONFIG_GUS
 506     {
 507         "gus",
 508         "Gravis Ultrasound GF1",
 509         0,
 510         1,
 511         { .init_isa = GUS_init }
 512     },
 513 #endif
 514
 515 #ifdef CONFIG_AC97
 516     {
 517         "ac97",
 518         "Intel 82801AA AC97 Audio",
 519         0,
 520         0,
 521         { .init_pci = ac97_init }
 522     },
 523 #endif
 524
 525 #ifdef CONFIG_ES1370
 526     {
 527         "es1370",
 528         "ENSONIQ AudioPCI ES1370",
 529         0,
 530         0,
 531         { .init_pci = es1370_init }
 532     },
 533 #endif
 534
 535 #ifdef CONFIG_HDA
 536     {
 537         "hda",
 538         "Intel HD Audio",
 539         0,
 540         0,
 541         { .init_pci = intel_hda_and_codec_init }
 542     },
 543 #endif
 544
 545 #endif /* HAS_AUDIO_CHOICE */
 546
 547     { NULL, NULL, 0, 0, { NULL } }
 548 };
 549
 550 void select_soundhw(const char *optarg)
 551 {
 552     struct soundhw *c;
 553
 554     if (*optarg == '?') {
 555     show_valid_cards:
 556
 557         printf("Valid sound card names (comma separated):\n");
 558         for (c = soundhw; c->name; ++c) {
 559             printf ("%-11s %s\n", c->name, c->descr);
 560         }
 561         printf("\n-soundhw all will enable all of the above\n");
 562         exit(*optarg != '?');
 563     }
 564     else {
 565         size_t l;
 566         const char *p;
 567         char *e;
 568         int bad_card = 0;
 569
 570         if (!strcmp(optarg, "all")) {
 571             for (c = soundhw; c->name; ++c) {
 572                 c->enabled = 1;
 573             }
 574             return;
 575         }
 576
 577         p = optarg;
 578         while (*p) {
 579             e = strchr(p, ',');
 580             l = !e ? strlen(p) : (size_t) (e - p);
 581
 582             for (c = soundhw; c->name; ++c) {
 583                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 584                     c->enabled = 1;
 585                     break;
 586                 }
 587             }
 588
 589             if (!c->name) {
 590                 if (l > 80) {
 591                     fprintf(stderr,
 592                             "Unknown sound card name (too big to show)\n");
 593                 }
 594                 else {
 595                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 596                             (int) l, p);
 597                 }
 598                 bad_card = 1;
 599             }
 600             p += l + (e != NULL);
 601         }
 602
 603         if (bad_card) {
 604             goto show_valid_cards;
 605         }
 606     }
 607 }
 608
 609 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 610 {
 611     struct soundhw *c;
 612
 613     for (c = soundhw; c->name; ++c) {
 614         if (c->enabled) {
 615             if (c->isa) {
 616                 if (isa_bus) {
 617                     c->init.init_isa(isa_bus);
 618                 }
 619             } else {
 620                 if (pci_bus) {
 621                     c->init.init_pci(pci_bus);
 622                 }
 623             }
 624         }
 625     }
 626 }
 627 #else
 628 void select_soundhw(const char *optarg)
 629 {
 630 }
 631 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
 632 {
 633 }
 634 #endif
 635
 636 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 637 {
 638     int ret;
 639
 640     if (strlen(str) != 36) {
 641         return -1;
 642     }
 643
 644     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 645                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 646                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 647                  &uuid[15]);
 648
 649     if (ret != 16) {
 650         return -1;
 651     }
 652 #ifdef TARGET_I386
 653     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 654 #endif
 655     return 0;
 656 }
 657
 658 void do_acpitable_option(const char *optarg)
 659 {
 660 #ifdef TARGET_I386
 661     if (acpi_table_add(optarg) < 0) {
 662         fprintf(stderr, "Wrong acpi table provided\n");
 663         exit(1);
 664     }
 665 #endif
 666 }
 667
 668 void do_smbios_option(const char *optarg)
 669 {
 670 #ifdef TARGET_I386
 671     if (smbios_entry_add(optarg) < 0) {
 672         fprintf(stderr, "Wrong smbios provided\n");
 673         exit(1);
 674     }
 675 #endif
 676 }
 677
 678 void cpudef_init(void)
 679 {
 680 #if defined(cpudef_setup)
 681     cpudef_setup(); /* parse cpu definitions in target config file */
 682 #endif
 683 }
 684
 685 int audio_available(void)
 686 {
 687 #ifdef HAS_AUDIO
 688     return 1;
 689 #else
 690     return 0;
 691 #endif
 692 }
 693
 694 int tcg_available(void)
 695 {
 696     return 1;
 697 }
 698
 699 int kvm_available(void)
 700 {
 701 #ifdef CONFIG_KVM
 702     return 1;
 703 #else
 704     return 0;
 705 #endif
 706 }
 707
 708 int xen_available(void)
 709 {
 710 #ifdef CONFIG_XEN
 711     return 1;
 712 #else
 713     return 0;
 714 #endif
 715 }