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 #ifndef _WIN32
  27 #include <sys/types.h>
  28 #include <sys/mman.h>
  29 #endif
  30 #include "config.h"
  31 #include "monitor.h"
  32 #include "sysemu.h"
  33 #include "arch_init.h"
  34 #include "audio/audio.h"
  35 #include "hw/pc.h"
  36 #include "hw/pci.h"
  37 #include "hw/audiodev.h"
  38 #include "kvm.h"
  39 #include "migration.h"
  40 #include "net.h"
  41 #include "gdbstub.h"
  42 #include "hw/smbios.h"
  43
  44 #ifdef TARGET_SPARC
  45 int graphic_width = 1024;
  46 int graphic_height = 768;
  47 int graphic_depth = 8;
  48 #else
  49 int graphic_width = 800;
  50 int graphic_height = 600;
  51 int graphic_depth = 15;
  52 #endif
  53
  54 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
  55
  56 #if defined(TARGET_ALPHA)
  57 #define QEMU_ARCH QEMU_ARCH_ALPHA
  58 #elif defined(TARGET_ARM)
  59 #define QEMU_ARCH QEMU_ARCH_ARM
  60 #elif defined(TARGET_CRIS)
  61 #define QEMU_ARCH QEMU_ARCH_CRIS
  62 #elif defined(TARGET_I386)
  63 #define QEMU_ARCH QEMU_ARCH_I386
  64 #elif defined(TARGET_M68K)
  65 #define QEMU_ARCH QEMU_ARCH_M68K
  66 #elif defined(TARGET_MICROBLAZE)
  67 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  68 #elif defined(TARGET_MIPS)
  69 #define QEMU_ARCH QEMU_ARCH_MIPS
  70 #elif defined(TARGET_PPC)
  71 #define QEMU_ARCH QEMU_ARCH_PPC
  72 #elif defined(TARGET_S390X)
  73 #define QEMU_ARCH QEMU_ARCH_S390X
  74 #elif defined(TARGET_SH4)
  75 #define QEMU_ARCH QEMU_ARCH_SH4
  76 #elif defined(TARGET_SPARC)
  77 #define QEMU_ARCH QEMU_ARCH_SPARC
  78 #endif
  79
  80 const uint32_t arch_type = QEMU_ARCH;
  81
  82 /***********************************************************/
  83 /* ram save/restore */
  84
  85 #define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
  86 #define RAM_SAVE_FLAG_COMPRESS 0x02
  87 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
  88 #define RAM_SAVE_FLAG_PAGE     0x08
  89 #define RAM_SAVE_FLAG_EOS      0x10
  90 #define RAM_SAVE_FLAG_CONTINUE 0x20
  91
  92 static int is_dup_page(uint8_t *page, uint8_t ch)
  93 {
  94     uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
  95     uint32_t *array = (uint32_t *)page;
  96     int i;
  97
  98     for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
  99         if (array[i] != val) {
 100             return 0;
 101         }
 102     }
 103
 104     return 1;
 105 }
 106
 107 static RAMBlock *last_block;
 108 static ram_addr_t last_offset;
 109
 110 static int ram_save_block(QEMUFile *f)
 111 {
 112     RAMBlock *block = last_block;
 113     ram_addr_t offset = last_offset;
 114     ram_addr_t current_addr;
 115     int bytes_sent = 0;
 116
 117     if (!block)
 118         block = QLIST_FIRST(&ram_list.blocks);
 119
 120     current_addr = block->offset + offset;
 121
 122     do {
 123         if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
 124             uint8_t *p;
 125             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 126
 127             cpu_physical_memory_reset_dirty(current_addr,
 128                                             current_addr + TARGET_PAGE_SIZE,
 129                                             MIGRATION_DIRTY_FLAG);
 130
 131             p = block->host + offset;
 132
 133             if (is_dup_page(p, *p)) {
 134                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 135                 if (!cont) {
 136                     qemu_put_byte(f, strlen(block->idstr));
 137                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 138                                     strlen(block->idstr));
 139                 }
 140                 qemu_put_byte(f, *p);
 141                 bytes_sent = 1;
 142             } else {
 143                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 144                 if (!cont) {
 145                     qemu_put_byte(f, strlen(block->idstr));
 146                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 147                                     strlen(block->idstr));
 148                 }
 149                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 150                 bytes_sent = TARGET_PAGE_SIZE;
 151             }
 152
 153             break;
 154         }
 155
 156         offset += TARGET_PAGE_SIZE;
 157         if (offset >= block->length) {
 158             offset = 0;
 159             block = QLIST_NEXT(block, next);
 160             if (!block)
 161                 block = QLIST_FIRST(&ram_list.blocks);
 162         }
 163
 164         current_addr = block->offset + offset;
 165
 166     } while (current_addr != last_block->offset + last_offset);
 167
 168     last_block = block;
 169     last_offset = offset;
 170
 171     return bytes_sent;
 172 }
 173
 174 static uint64_t bytes_transferred;
 175
 176 static ram_addr_t ram_save_remaining(void)
 177 {
 178     RAMBlock *block;
 179     ram_addr_t count = 0;
 180
 181     QLIST_FOREACH(block, &ram_list.blocks, next) {
 182         ram_addr_t addr;
 183         for (addr = block->offset; addr < block->offset + block->length;
 184              addr += TARGET_PAGE_SIZE) {
 185             if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 186                 count++;
 187             }
 188         }
 189     }
 190
 191     return count;
 192 }
 193
 194 uint64_t ram_bytes_remaining(void)
 195 {
 196     return ram_save_remaining() * TARGET_PAGE_SIZE;
 197 }
 198
 199 uint64_t ram_bytes_transferred(void)
 200 {
 201     return bytes_transferred;
 202 }
 203
 204 uint64_t ram_bytes_total(void)
 205 {
 206     RAMBlock *block;
 207     uint64_t total = 0;
 208
 209     QLIST_FOREACH(block, &ram_list.blocks, next)
 210         total += block->length;
 211
 212     return total;
 213 }
 214
 215 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 216 {
 217     ram_addr_t addr;
 218     uint64_t bytes_transferred_last;
 219     double bwidth = 0;
 220     uint64_t expected_time = 0;
 221
 222     if (stage < 0) {
 223         cpu_physical_memory_set_dirty_tracking(0);
 224         return 0;
 225     }
 226
 227     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 228         qemu_file_set_error(f);
 229         return 0;
 230     }
 231
 232     if (stage == 1) {
 233         RAMBlock *block;
 234         bytes_transferred = 0;
 235         last_block = NULL;
 236         last_offset = 0;
 237
 238         /* Make sure all dirty bits are set */
 239         QLIST_FOREACH(block, &ram_list.blocks, next) {
 240             for (addr = block->offset; addr < block->offset + block->length;
 241                  addr += TARGET_PAGE_SIZE) {
 242                 if (!cpu_physical_memory_get_dirty(addr,
 243                                                    MIGRATION_DIRTY_FLAG)) {
 244                     cpu_physical_memory_set_dirty(addr);
 245                 }
 246             }
 247         }
 248
 249         /* Enable dirty memory tracking */
 250         cpu_physical_memory_set_dirty_tracking(1);
 251
 252         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 253
 254         QLIST_FOREACH(block, &ram_list.blocks, next) {
 255             qemu_put_byte(f, strlen(block->idstr));
 256             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 257             qemu_put_be64(f, block->length);
 258         }
 259     }
 260
 261     bytes_transferred_last = bytes_transferred;
 262     bwidth = qemu_get_clock_ns(rt_clock);
 263
 264     while (!qemu_file_rate_limit(f)) {
 265         int bytes_sent;
 266
 267         bytes_sent = ram_save_block(f);
 268         bytes_transferred += bytes_sent;
 269         if (bytes_sent == 0) { /* no more blocks */
 270             break;
 271         }
 272     }
 273
 274     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 275     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 276
 277     /* if we haven't transferred anything this round, force expected_time to a
 278      * a very high value, but without crashing */
 279     if (bwidth == 0) {
 280         bwidth = 0.000001;
 281     }
 282
 283     /* try transferring iterative blocks of memory */
 284     if (stage == 3) {
 285         int bytes_sent;
 286
 287         /* flush all remaining blocks regardless of rate limiting */
 288         while ((bytes_sent = ram_save_block(f)) != 0) {
 289             bytes_transferred += bytes_sent;
 290         }
 291         cpu_physical_memory_set_dirty_tracking(0);
 292     }
 293
 294     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 295
 296     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 297
 298     return (stage == 2) && (expected_time <= migrate_max_downtime());
 299 }
 300
 301 static inline void *host_from_stream_offset(QEMUFile *f,
 302                                             ram_addr_t offset,
 303                                             int flags)
 304 {
 305     static RAMBlock *block = NULL;
 306     char id[256];
 307     uint8_t len;
 308
 309     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 310         if (!block) {
 311             fprintf(stderr, "Ack, bad migration stream!\n");
 312             return NULL;
 313         }
 314
 315         return block->host + offset;
 316     }
 317
 318     len = qemu_get_byte(f);
 319     qemu_get_buffer(f, (uint8_t *)id, len);
 320     id[len] = 0;
 321
 322     QLIST_FOREACH(block, &ram_list.blocks, next) {
 323         if (!strncmp(id, block->idstr, sizeof(id)))
 324             return block->host + offset;
 325     }
 326
 327     fprintf(stderr, "Can't find block %s!\n", id);
 328     return NULL;
 329 }
 330
 331 int ram_load(QEMUFile *f, void *opaque, int version_id)
 332 {
 333     ram_addr_t addr;
 334     int flags;
 335
 336     if (version_id < 3 || version_id > 4) {
 337         return -EINVAL;
 338     }
 339
 340     do {
 341         addr = qemu_get_be64(f);
 342
 343         flags = addr & ~TARGET_PAGE_MASK;
 344         addr &= TARGET_PAGE_MASK;
 345
 346         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 347             if (version_id == 3) {
 348                 if (addr != ram_bytes_total()) {
 349                     return -EINVAL;
 350                 }
 351             } else {
 352                 /* Synchronize RAM block list */
 353                 char id[256];
 354                 ram_addr_t length;
 355                 ram_addr_t total_ram_bytes = addr;
 356
 357                 while (total_ram_bytes) {
 358                     RAMBlock *block;
 359                     uint8_t len;
 360
 361                     len = qemu_get_byte(f);
 362                     qemu_get_buffer(f, (uint8_t *)id, len);
 363                     id[len] = 0;
 364                     length = qemu_get_be64(f);
 365
 366                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 367                         if (!strncmp(id, block->idstr, sizeof(id))) {
 368                             if (block->length != length)
 369                                 return -EINVAL;
 370                             break;
 371                         }
 372                     }
 373
 374                     if (!block) {
 375                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 376                                 "accept migration\n", id);
 377                         return -EINVAL;
 378                     }
 379
 380                     total_ram_bytes -= length;
 381                 }
 382             }
 383         }
 384
 385         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 386             void *host;
 387             uint8_t ch;
 388
 389             if (version_id == 3)
 390                 host = qemu_get_ram_ptr(addr);
 391             else
 392                 host = host_from_stream_offset(f, addr, flags);
 393
 394             ch = qemu_get_byte(f);
 395             memset(host, ch, TARGET_PAGE_SIZE);
 396 #ifndef _WIN32
 397             if (ch == 0 &&
 398                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 399                 madvise(host, TARGET_PAGE_SIZE, MADV_DONTNEED);
 400             }
 401 #endif
 402         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 403             void *host;
 404
 405             if (version_id == 3)
 406                 host = qemu_get_ram_ptr(addr);
 407             else
 408                 host = host_from_stream_offset(f, addr, flags);
 409
 410             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 411         }
 412         if (qemu_file_has_error(f)) {
 413             return -EIO;
 414         }
 415     } while (!(flags & RAM_SAVE_FLAG_EOS));
 416
 417     return 0;
 418 }
 419
 420 void qemu_service_io(void)
 421 {
 422     qemu_notify_event();
 423 }
 424
 425 #ifdef HAS_AUDIO
 426 struct soundhw soundhw[] = {
 427 #ifdef HAS_AUDIO_CHOICE
 428 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 429     {
 430         "pcspk",
 431         "PC speaker",
 432         0,
 433         1,
 434         { .init_isa = pcspk_audio_init }
 435     },
 436 #endif
 437
 438 #ifdef CONFIG_SB16
 439     {
 440         "sb16",
 441         "Creative Sound Blaster 16",
 442         0,
 443         1,
 444         { .init_isa = SB16_init }
 445     },
 446 #endif
 447
 448 #ifdef CONFIG_CS4231A
 449     {
 450         "cs4231a",
 451         "CS4231A",
 452         0,
 453         1,
 454         { .init_isa = cs4231a_init }
 455     },
 456 #endif
 457
 458 #ifdef CONFIG_ADLIB
 459     {
 460         "adlib",
 461 #ifdef HAS_YMF262
 462         "Yamaha YMF262 (OPL3)",
 463 #else
 464         "Yamaha YM3812 (OPL2)",
 465 #endif
 466         0,
 467         1,
 468         { .init_isa = Adlib_init }
 469     },
 470 #endif
 471
 472 #ifdef CONFIG_GUS
 473     {
 474         "gus",
 475         "Gravis Ultrasound GF1",
 476         0,
 477         1,
 478         { .init_isa = GUS_init }
 479     },
 480 #endif
 481
 482 #ifdef CONFIG_AC97
 483     {
 484         "ac97",
 485         "Intel 82801AA AC97 Audio",
 486         0,
 487         0,
 488         { .init_pci = ac97_init }
 489     },
 490 #endif
 491
 492 #ifdef CONFIG_ES1370
 493     {
 494         "es1370",
 495         "ENSONIQ AudioPCI ES1370",
 496         0,
 497         0,
 498         { .init_pci = es1370_init }
 499     },
 500 #endif
 501
 502 #endif /* HAS_AUDIO_CHOICE */
 503
 504     { NULL, NULL, 0, 0, { NULL } }
 505 };
 506
 507 void select_soundhw(const char *optarg)
 508 {
 509     struct soundhw *c;
 510
 511     if (*optarg == '?') {
 512     show_valid_cards:
 513
 514         printf("Valid sound card names (comma separated):\n");
 515         for (c = soundhw; c->name; ++c) {
 516             printf ("%-11s %s\n", c->name, c->descr);
 517         }
 518         printf("\n-soundhw all will enable all of the above\n");
 519         exit(*optarg != '?');
 520     }
 521     else {
 522         size_t l;
 523         const char *p;
 524         char *e;
 525         int bad_card = 0;
 526
 527         if (!strcmp(optarg, "all")) {
 528             for (c = soundhw; c->name; ++c) {
 529                 c->enabled = 1;
 530             }
 531             return;
 532         }
 533
 534         p = optarg;
 535         while (*p) {
 536             e = strchr(p, ',');
 537             l = !e ? strlen(p) : (size_t) (e - p);
 538
 539             for (c = soundhw; c->name; ++c) {
 540                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 541                     c->enabled = 1;
 542                     break;
 543                 }
 544             }
 545
 546             if (!c->name) {
 547                 if (l > 80) {
 548                     fprintf(stderr,
 549                             "Unknown sound card name (too big to show)\n");
 550                 }
 551                 else {
 552                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 553                             (int) l, p);
 554                 }
 555                 bad_card = 1;
 556             }
 557             p += l + (e != NULL);
 558         }
 559
 560         if (bad_card) {
 561             goto show_valid_cards;
 562         }
 563     }
 564 }
 565 #else
 566 void select_soundhw(const char *optarg)
 567 {
 568 }
 569 #endif
 570
 571 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 572 {
 573     int ret;
 574
 575     if (strlen(str) != 36) {
 576         return -1;
 577     }
 578
 579     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 580                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 581                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 582                  &uuid[15]);
 583
 584     if (ret != 16) {
 585         return -1;
 586     }
 587 #ifdef TARGET_I386
 588     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 589 #endif
 590     return 0;
 591 }
 592
 593 void do_acpitable_option(const char *optarg)
 594 {
 595 #ifdef TARGET_I386
 596     if (acpi_table_add(optarg) < 0) {
 597         fprintf(stderr, "Wrong acpi table provided\n");
 598         exit(1);
 599     }
 600 #endif
 601 }
 602
 603 void do_smbios_option(const char *optarg)
 604 {
 605 #ifdef TARGET_I386
 606     if (smbios_entry_add(optarg) < 0) {
 607         fprintf(stderr, "Wrong smbios provided\n");
 608         exit(1);
 609     }
 610 #endif
 611 }
 612
 613 void cpudef_init(void)
 614 {
 615 #if defined(cpudef_setup)
 616     cpudef_setup(); /* parse cpu definitions in target config file */
 617 #endif
 618 }
 619
 620 int audio_available(void)
 621 {
 622 #ifdef HAS_AUDIO
 623     return 1;
 624 #else
 625     return 0;
 626 #endif
 627 }
 628
 629 int kvm_available(void)
 630 {
 631 #ifdef CONFIG_KVM
 632     return 1;
 633 #else
 634     return 0;
 635 #endif
 636 }
 637
 638 int xen_available(void)
 639 {
 640 #ifdef CONFIG_XEN
 641     return 1;
 642 #else
 643     return 0;
 644 #endif
 645 }