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