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