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                         if (!qemu_ram_alloc(NULL, id, length))
 373                             return -ENOMEM;
 374                     }
 375
 376                     total_ram_bytes -= length;
 377                 }
 378             }
 379         }
 380
 381         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 382             void *host;
 383             uint8_t ch;
 384
 385             if (version_id == 3)
 386                 host = qemu_get_ram_ptr(addr);
 387             else
 388                 host = host_from_stream_offset(f, addr, flags);
 389
 390             ch = qemu_get_byte(f);
 391             memset(host, ch, TARGET_PAGE_SIZE);
 392 #ifndef _WIN32
 393             if (ch == 0 &&
 394                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 395                 madvise(host, TARGET_PAGE_SIZE, MADV_DONTNEED);
 396             }
 397 #endif
 398         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 399             void *host;
 400
 401             if (version_id == 3)
 402                 host = qemu_get_ram_ptr(addr);
 403             else
 404                 host = host_from_stream_offset(f, addr, flags);
 405
 406             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 407         }
 408         if (qemu_file_has_error(f)) {
 409             return -EIO;
 410         }
 411     } while (!(flags & RAM_SAVE_FLAG_EOS));
 412
 413     return 0;
 414 }
 415
 416 void qemu_service_io(void)
 417 {
 418     qemu_notify_event();
 419 }
 420
 421 #ifdef HAS_AUDIO
 422 struct soundhw soundhw[] = {
 423 #ifdef HAS_AUDIO_CHOICE
 424 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 425     {
 426         "pcspk",
 427         "PC speaker",
 428         0,
 429         1,
 430         { .init_isa = pcspk_audio_init }
 431     },
 432 #endif
 433
 434 #ifdef CONFIG_SB16
 435     {
 436         "sb16",
 437         "Creative Sound Blaster 16",
 438         0,
 439         1,
 440         { .init_isa = SB16_init }
 441     },
 442 #endif
 443
 444 #ifdef CONFIG_CS4231A
 445     {
 446         "cs4231a",
 447         "CS4231A",
 448         0,
 449         1,
 450         { .init_isa = cs4231a_init }
 451     },
 452 #endif
 453
 454 #ifdef CONFIG_ADLIB
 455     {
 456         "adlib",
 457 #ifdef HAS_YMF262
 458         "Yamaha YMF262 (OPL3)",
 459 #else
 460         "Yamaha YM3812 (OPL2)",
 461 #endif
 462         0,
 463         1,
 464         { .init_isa = Adlib_init }
 465     },
 466 #endif
 467
 468 #ifdef CONFIG_GUS
 469     {
 470         "gus",
 471         "Gravis Ultrasound GF1",
 472         0,
 473         1,
 474         { .init_isa = GUS_init }
 475     },
 476 #endif
 477
 478 #ifdef CONFIG_AC97
 479     {
 480         "ac97",
 481         "Intel 82801AA AC97 Audio",
 482         0,
 483         0,
 484         { .init_pci = ac97_init }
 485     },
 486 #endif
 487
 488 #ifdef CONFIG_ES1370
 489     {
 490         "es1370",
 491         "ENSONIQ AudioPCI ES1370",
 492         0,
 493         0,
 494         { .init_pci = es1370_init }
 495     },
 496 #endif
 497
 498 #endif /* HAS_AUDIO_CHOICE */
 499
 500     { NULL, NULL, 0, 0, { NULL } }
 501 };
 502
 503 void select_soundhw(const char *optarg)
 504 {
 505     struct soundhw *c;
 506
 507     if (*optarg == '?') {
 508     show_valid_cards:
 509
 510         printf("Valid sound card names (comma separated):\n");
 511         for (c = soundhw; c->name; ++c) {
 512             printf ("%-11s %s\n", c->name, c->descr);
 513         }
 514         printf("\n-soundhw all will enable all of the above\n");
 515         exit(*optarg != '?');
 516     }
 517     else {
 518         size_t l;
 519         const char *p;
 520         char *e;
 521         int bad_card = 0;
 522
 523         if (!strcmp(optarg, "all")) {
 524             for (c = soundhw; c->name; ++c) {
 525                 c->enabled = 1;
 526             }
 527             return;
 528         }
 529
 530         p = optarg;
 531         while (*p) {
 532             e = strchr(p, ',');
 533             l = !e ? strlen(p) : (size_t) (e - p);
 534
 535             for (c = soundhw; c->name; ++c) {
 536                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 537                     c->enabled = 1;
 538                     break;
 539                 }
 540             }
 541
 542             if (!c->name) {
 543                 if (l > 80) {
 544                     fprintf(stderr,
 545                             "Unknown sound card name (too big to show)\n");
 546                 }
 547                 else {
 548                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 549                             (int) l, p);
 550                 }
 551                 bad_card = 1;
 552             }
 553             p += l + (e != NULL);
 554         }
 555
 556         if (bad_card) {
 557             goto show_valid_cards;
 558         }
 559     }
 560 }
 561 #else
 562 void select_soundhw(const char *optarg)
 563 {
 564 }
 565 #endif
 566
 567 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 568 {
 569     int ret;
 570
 571     if (strlen(str) != 36) {
 572         return -1;
 573     }
 574
 575     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 576                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 577                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 578                  &uuid[15]);
 579
 580     if (ret != 16) {
 581         return -1;
 582     }
 583 #ifdef TARGET_I386
 584     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 585 #endif
 586     return 0;
 587 }
 588
 589 void do_acpitable_option(const char *optarg)
 590 {
 591 #ifdef TARGET_I386
 592     if (acpi_table_add(optarg) < 0) {
 593         fprintf(stderr, "Wrong acpi table provided\n");
 594         exit(1);
 595     }
 596 #endif
 597 }
 598
 599 void do_smbios_option(const char *optarg)
 600 {
 601 #ifdef TARGET_I386
 602     if (smbios_entry_add(optarg) < 0) {
 603         fprintf(stderr, "Wrong smbios provided\n");
 604         exit(1);
 605     }
 606 #endif
 607 }
 608
 609 void cpudef_init(void)
 610 {
 611 #if defined(cpudef_setup)
 612     cpudef_setup(); /* parse cpu definitions in target config file */
 613 #endif
 614 }
 615
 616 int audio_available(void)
 617 {
 618 #ifdef HAS_AUDIO
 619     return 1;
 620 #else
 621     return 0;
 622 #endif
 623 }
 624
 625 int kvm_available(void)
 626 {
 627 #ifdef CONFIG_KVM
 628     return 1;
 629 #else
 630     return 0;
 631 #endif
 632 }
 633
 634 int xen_available(void)
 635 {
 636 #ifdef CONFIG_XEN
 637     return 1;
 638 #else
 639     return 0;
 640 #endif
 641 }