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