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 #include <stdlib.h> 27 #ifndef _WIN32 28 #include <sys/types.h> 29 #include <sys/mman.h> 30 #endif 31 #include "config.h" 32 #include "monitor.h" 33 #include "sysemu.h" 34 #include "arch_init.h" 35 #include "audio/audio.h" 36 #include "hw/irq.h" 37 #include "hw/pci.h" 38 #include "hw/audiodev.h" 39 #include "kvm.h" 40 #include "migration.h" 41 #include "net.h" 42 #include "gdbstub.h" 43 #include "hw/smbios.h" 44 45 #ifdef TARGET_SPARC 46 int graphic_width = 1024; 47 int graphic_height = 768; 48 int graphic_depth = 8; 49 #else 50 int graphic_width = 800; 51 int graphic_height = 600; 52 int graphic_depth = 15; 53 #endif 54 55 const char arch_config_name[] = CONFIG_QEMU_SHAREDIR "/target-" TARGET_ARCH ".conf"; 56 57 #if defined(TARGET_ALPHA) 58 #define QEMU_ARCH QEMU_ARCH_ALPHA 59 #elif defined(TARGET_ARM) 60 #define QEMU_ARCH QEMU_ARCH_ARM 61 #elif defined(TARGET_CRIS) 62 #define QEMU_ARCH QEMU_ARCH_CRIS 63 #elif defined(TARGET_I386) 64 #define QEMU_ARCH QEMU_ARCH_I386 65 #elif defined(TARGET_M68K) 66 #define QEMU_ARCH QEMU_ARCH_M68K 67 #elif defined(TARGET_LM32) 68 #define QEMU_ARCH QEMU_ARCH_LM32 69 #elif defined(TARGET_MICROBLAZE) 70 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE 71 #elif defined(TARGET_MIPS) 72 #define QEMU_ARCH QEMU_ARCH_MIPS 73 #elif defined(TARGET_PPC) 74 #define QEMU_ARCH QEMU_ARCH_PPC 75 #elif defined(TARGET_S390X) 76 #define QEMU_ARCH QEMU_ARCH_S390X 77 #elif defined(TARGET_SH4) 78 #define QEMU_ARCH QEMU_ARCH_SH4 79 #elif defined(TARGET_SPARC) 80 #define QEMU_ARCH QEMU_ARCH_SPARC 81 #endif 82 83 const uint32_t arch_type = QEMU_ARCH; 84 85 #if 1 86 /***********************************************************/ 87 /* ram save/restore */ 88 89 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */ 90 #define RAM_SAVE_FLAG_COMPRESS 0x02 91 #define RAM_SAVE_FLAG_MEM_SIZE 0x04 92 #define RAM_SAVE_FLAG_PAGE 0x08 93 #define RAM_SAVE_FLAG_EOS 0x10 94 #define RAM_SAVE_FLAG_CONTINUE 0x20 95 96 static int is_dup_page(uint8_t *page, uint8_t ch) 97 { 98 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch; 99 uint32_t *array = (uint32_t *)page; 100 int i; 101 102 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) { 103 if (array[i] != val) { 104 return 0; 105 } 106 } 107 108 return 1; 109 } 110 111 static RAMBlock *last_block; 112 static ram_addr_t last_offset; 113 114 static int ram_save_block(QEMUFile *f) 115 { 116 RAMBlock *block = last_block; 117 ram_addr_t offset = last_offset; 118 ram_addr_t current_addr; 119 int bytes_sent = 0; 120 121 if (!block) 122 block = QLIST_FIRST(&ram_list.blocks); 123 124 current_addr = block->offset + offset; 125 126 do { 127 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) { 128 uint8_t *p; 129 int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0; 130 131 cpu_physical_memory_reset_dirty(current_addr, 132 current_addr + TARGET_PAGE_SIZE, 133 MIGRATION_DIRTY_FLAG); 134 135 p = block->host + offset; 136 137 if (is_dup_page(p, *p)) { 138 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS); 139 if (!cont) { 140 qemu_put_byte(f, strlen(block->idstr)); 141 qemu_put_buffer(f, (uint8_t *)block->idstr, 142 strlen(block->idstr)); 143 } 144 qemu_put_byte(f, *p); 145 bytes_sent = 1; 146 } else { 147 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE); 148 if (!cont) { 149 qemu_put_byte(f, strlen(block->idstr)); 150 qemu_put_buffer(f, (uint8_t *)block->idstr, 151 strlen(block->idstr)); 152 } 153 qemu_put_buffer(f, p, TARGET_PAGE_SIZE); 154 bytes_sent = TARGET_PAGE_SIZE; 155 } 156 157 break; 158 } 159 160 offset += TARGET_PAGE_SIZE; 161 if (offset >= block->length) { 162 offset = 0; 163 block = QLIST_NEXT(block, next); 164 if (!block) 165 block = QLIST_FIRST(&ram_list.blocks); 166 } 167 168 current_addr = block->offset + offset; 169 170 } while (current_addr != last_block->offset + last_offset); 171 172 last_block = block; 173 last_offset = offset; 174 175 return bytes_sent; 176 } 177 178 static uint64_t bytes_transferred; 179 180 static ram_addr_t ram_save_remaining(void) 181 { 182 RAMBlock *block; 183 ram_addr_t count = 0; 184 185 QLIST_FOREACH(block, &ram_list.blocks, next) { 186 ram_addr_t addr; 187 for (addr = block->offset; addr < block->offset + block->length; 188 addr += TARGET_PAGE_SIZE) { 189 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) { 190 count++; 191 } 192 } 193 } 194 195 return count; 196 } 197 198 uint64_t ram_bytes_remaining(void) 199 { 200 return ram_save_remaining() * TARGET_PAGE_SIZE; 201 } 202 203 uint64_t ram_bytes_transferred(void) 204 { 205 return bytes_transferred; 206 } 207 208 uint64_t ram_bytes_total(void) 209 { 210 RAMBlock *block; 211 uint64_t total = 0; 212 213 QLIST_FOREACH(block, &ram_list.blocks, next) 214 total += block->length; 215 216 return total; 217 } 218 219 static int block_compar(const void *a, const void *b) 220 { 221 RAMBlock * const *ablock = a; 222 RAMBlock * const *bblock = b; 223 if ((*ablock)->offset < (*bblock)->offset) { 224 return -1; 225 } else if ((*ablock)->offset > (*bblock)->offset) { 226 return 1; 227 } 228 return 0; 229 } 230 231 static void sort_ram_list(void) 232 { 233 RAMBlock *block, *nblock, **blocks; 234 int n; 235 n = 0; 236 QLIST_FOREACH(block, &ram_list.blocks, next) { 237 ++n; 238 } 239 blocks = qemu_malloc(n * sizeof *blocks); 240 n = 0; 241 QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) { 242 blocks[n++] = block; 243 QLIST_REMOVE(block, next); 244 } 245 qsort(blocks, n, sizeof *blocks, block_compar); 246 while (--n >= 0) { 247 QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next); 248 } 249 qemu_free(blocks); 250 } 251 252 int ram_save_live(QEMUFile *f, int stage, void *opaque) 253 { 254 ram_addr_t addr; 255 uint64_t bytes_transferred_last; 256 double bwidth = 0; 257 uint64_t expected_time = 0; 258 259 if (stage < 0) { 260 cpu_physical_memory_set_dirty_tracking(0); 261 return 0; 262 } 263 264 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) { 265 qemu_file_set_error(f); 266 return 0; 267 } 268 269 if (stage == 1) { 270 RAMBlock *block; 271 bytes_transferred = 0; 272 last_block = NULL; 273 last_offset = 0; 274 sort_ram_list(); 275 276 /* Make sure all dirty bits are set */ 277 QLIST_FOREACH(block, &ram_list.blocks, next) { 278 for (addr = block->offset; addr < block->offset + block->length; 279 addr += TARGET_PAGE_SIZE) { 280 if (!cpu_physical_memory_get_dirty(addr, 281 MIGRATION_DIRTY_FLAG)) { 282 cpu_physical_memory_set_dirty(addr); 283 } 284 } 285 } 286 287 /* Enable dirty memory tracking */ 288 cpu_physical_memory_set_dirty_tracking(1); 289 290 qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE); 291 292 QLIST_FOREACH(block, &ram_list.blocks, next) { 293 qemu_put_byte(f, strlen(block->idstr)); 294 qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr)); 295 qemu_put_be64(f, block->length); 296 } 297 } 298 299 bytes_transferred_last = bytes_transferred; 300 bwidth = qemu_get_clock_ns(rt_clock); 301 302 while (!qemu_file_rate_limit(f)) { 303 int bytes_sent; 304 305 bytes_sent = ram_save_block(f); 306 bytes_transferred += bytes_sent; 307 if (bytes_sent == 0) { /* no more blocks */ 308 break; 309 } 310 } 311 312 bwidth = qemu_get_clock_ns(rt_clock) - bwidth; 313 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; 314 315 /* if we haven't transferred anything this round, force expected_time to a 316 * a very high value, but without crashing */ 317 if (bwidth == 0) { 318 bwidth = 0.000001; 319 } 320 321 /* try transferring iterative blocks of memory */ 322 if (stage == 3) { 323 int bytes_sent; 324 325 /* flush all remaining blocks regardless of rate limiting */ 326 while ((bytes_sent = ram_save_block(f)) != 0) { 327 bytes_transferred += bytes_sent; 328 } 329 cpu_physical_memory_set_dirty_tracking(0); 330 } 331 332 qemu_put_be64(f, RAM_SAVE_FLAG_EOS); 333 334 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; 335 336 return (stage == 2) && (expected_time <= migrate_max_downtime()); 337 } 338 339 static inline void *host_from_stream_offset(QEMUFile *f, 340 ram_addr_t offset, 341 int flags) 342 { 343 static RAMBlock *block = NULL; 344 char id[256]; 345 uint8_t len; 346 347 if (flags & RAM_SAVE_FLAG_CONTINUE) { 348 if (!block) { 349 fprintf(stderr, "Ack, bad migration stream!\n"); 350 return NULL; 351 } 352 353 return block->host + offset; 354 } 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 return block->host + offset; 363 } 364 365 fprintf(stderr, "Can't find block %s!\n", id); 366 return NULL; 367 } 368 369 int ram_load(QEMUFile *f, void *opaque, int version_id) 370 { 371 ram_addr_t addr; 372 int flags; 373 374 if (version_id < 3 || version_id > 4) { 375 return -EINVAL; 376 } 377 378 do { 379 addr = qemu_get_be64(f); 380 381 flags = addr & ~TARGET_PAGE_MASK; 382 addr &= TARGET_PAGE_MASK; 383 384 if (flags & RAM_SAVE_FLAG_MEM_SIZE) { 385 if (version_id != 3) { 386 if (addr != ram_bytes_total()) { 387 return -EINVAL; 388 } 389 } else { 390 /* Synchronize RAM block list */ 391 char id[256]; 392 ram_addr_t length; 393 ram_addr_t total_ram_bytes = addr; 394 395 while (total_ram_bytes) { 396 RAMBlock *block; 397 uint8_t len; 398 399 len = qemu_get_byte(f); 400 qemu_get_buffer(f, (uint8_t *)id, len); 401 id[len] = 0; 402 length = qemu_get_be64(f); 403 404 QLIST_FOREACH(block, &ram_list.blocks, next) { 405 if (!strncmp(id, block->idstr, sizeof(id))) { 406 if (block->length != length) 407 return -EINVAL; 408 break; 409 } 410 } 411 412 if (!block) { 413 fprintf(stderr, "Unknown ramblock \"%s\", cannot " 414 "accept migration\n", id); 415 return -EINVAL; 416 } 417 418 total_ram_bytes -= length; 419 } 420 } 421 } else if (flags & RAM_SAVE_FLAG_COMPRESS) { 422 void *host; 423 uint8_t ch; 424 425 if (version_id != 3) 426 host = qemu_get_ram_ptr(addr); 427 else 428 host = host_from_stream_offset(f, addr, flags); 429 if (!host) { 430 return -EINVAL; 431 } 432 433 ch = qemu_get_byte(f); 434 memset(host, ch, TARGET_PAGE_SIZE); 435 #ifndef _WIN32 436 if (ch == 0 && 437 (!kvm_enabled() || kvm_has_sync_mmu())) { 438 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED); 439 } 440 #endif 441 } else if (flags & RAM_SAVE_FLAG_PAGE) { 442 void *host; 443 444 if (version_id != 3) 445 host = qemu_get_ram_ptr(addr); 446 else 447 host = host_from_stream_offset(f, addr, flags); 448 449 qemu_get_buffer(f, host, TARGET_PAGE_SIZE); 450 } 451 if (qemu_file_has_error(f)) { 452 return -EIO; 453 } 454 } while (!(flags & RAM_SAVE_FLAG_EOS)); 455 456 return 0; 457 } 458 #endif 459 460 void qemu_service_io(void) 461 { 462 qemu_notify_event(); 463 } 464 465 #ifdef HAS_AUDIO 466 struct soundhw { 467 const char *name; 468 const char *descr; 469 int enabled; 470 int isa; 471 union { 472 int (*init_isa) (qemu_irq *pic); 473 int (*init_pci) (PCIBus *bus); 474 } init; 475 }; 476 477 static struct soundhw soundhw[] = { 478 #ifdef HAS_AUDIO_CHOICE 479 #if defined(TARGET_I386) || defined(TARGET_MIPS) 480 { 481 "pcspk", 482 "PC speaker", 483 0, 484 1, 485 { .init_isa = pcspk_audio_init } 486 }, 487 #endif 488 489 #ifdef CONFIG_SB16 490 { 491 "sb16", 492 "Creative Sound Blaster 16", 493 0, 494 1, 495 { .init_isa = SB16_init } 496 }, 497 #endif 498 499 #ifdef CONFIG_CS4231A 500 { 501 "cs4231a", 502 "CS4231A", 503 0, 504 1, 505 { .init_isa = cs4231a_init } 506 }, 507 #endif 508 509 #ifdef CONFIG_ADLIB 510 { 511 "adlib", 512 #ifdef HAS_YMF262 513 "Yamaha YMF262 (OPL3)", 514 #else 515 "Yamaha YM3812 (OPL2)", 516 #endif 517 0, 518 1, 519 { .init_isa = Adlib_init } 520 }, 521 #endif 522 523 #ifdef CONFIG_GUS 524 { 525 "gus", 526 "Gravis Ultrasound GF1", 527 0, 528 1, 529 { .init_isa = GUS_init } 530 }, 531 #endif 532 533 #ifdef CONFIG_AC97 534 { 535 "ac97", 536 "Intel 82801AA AC97 Audio", 537 0, 538 0, 539 { .init_pci = ac97_init } 540 }, 541 #endif 542 543 #ifdef CONFIG_ES1370 544 { 545 "es1370", 546 "ENSONIQ AudioPCI ES1370", 547 0, 548 0, 549 { .init_pci = es1370_init } 550 }, 551 #endif 552 553 #ifdef CONFIG_HDA 554 { 555 "hda", 556 "Intel HD Audio", 557 0, 558 0, 559 { .init_pci = intel_hda_and_codec_init } 560 }, 561 #endif 562 563 #endif /* HAS_AUDIO_CHOICE */ 564 565 { NULL, NULL, 0, 0, { NULL } } 566 }; 567 568 void select_soundhw(const char *optarg) 569 { 570 struct soundhw *c; 571 572 if (*optarg == '?') { 573 show_valid_cards: 574 575 printf("Valid sound card names (comma separated):\n"); 576 for (c = soundhw; c->name; ++c) { 577 printf ("%-11s %s\n", c->name, c->descr); 578 } 579 printf("\n-soundhw all will enable all of the above\n"); 580 exit(*optarg != '?'); 581 } 582 else { 583 size_t l; 584 const char *p; 585 char *e; 586 int bad_card = 0; 587 588 if (!strcmp(optarg, "all")) { 589 for (c = soundhw; c->name; ++c) { 590 c->enabled = 1; 591 } 592 return; 593 } 594 595 p = optarg; 596 while (*p) { 597 e = strchr(p, ','); 598 l = !e ? strlen(p) : (size_t) (e - p); 599 600 for (c = soundhw; c->name; ++c) { 601 if (!strncmp(c->name, p, l) && !c->name[l]) { 602 c->enabled = 1; 603 break; 604 } 605 } 606 607 if (!c->name) { 608 if (l > 80) { 609 fprintf(stderr, 610 "Unknown sound card name (too big to show)\n"); 611 } 612 else { 613 fprintf(stderr, "Unknown sound card name `%.*s'\n", 614 (int) l, p); 615 } 616 bad_card = 1; 617 } 618 p += l + (e != NULL); 619 } 620 621 if (bad_card) { 622 goto show_valid_cards; 623 } 624 } 625 } 626 627 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus) 628 { 629 struct soundhw *c; 630 631 for (c = soundhw; c->name; ++c) { 632 if (c->enabled) { 633 if (c->isa) { 634 if (isa_pic) { 635 c->init.init_isa(isa_pic); 636 } 637 } else { 638 if (pci_bus) { 639 c->init.init_pci(pci_bus); 640 } 641 } 642 } 643 } 644 } 645 #else 646 void select_soundhw(const char *optarg) 647 { 648 } 649 void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus) 650 { 651 } 652 #endif 653 654 int qemu_uuid_parse(const char *str, uint8_t *uuid) 655 { 656 int ret; 657 658 if (strlen(str) != 36) { 659 return -1; 660 } 661 662 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3], 663 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9], 664 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], 665 &uuid[15]); 666 667 if (ret != 16) { 668 return -1; 669 } 670 #ifdef TARGET_I386 671 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid); 672 #endif 673 return 0; 674 } 675 676 #if 0 677 void do_acpitable_option(const char *optarg) 678 { 679 #ifdef TARGET_I386 680 if (acpi_table_add(optarg) < 0) { 681 fprintf(stderr, "Wrong acpi table provided\n"); 682 exit(1); 683 } 684 #endif 685 } 686 #endif 687 688 void do_smbios_option(const char *optarg) 689 { 690 #ifdef TARGET_I386 691 if (smbios_entry_add(optarg) < 0) { 692 fprintf(stderr, "Wrong smbios provided\n"); 693 exit(1); 694 } 695 #endif 696 } 697 698 void cpudef_init(void) 699 { 700 #if defined(cpudef_setup) 701 cpudef_setup(); /* parse cpu definitions in target config file */ 702 #endif 703 } 704 705 int audio_available(void) 706 { 707 #ifdef HAS_AUDIO 708 return 1; 709 #else 710 return 0; 711 #endif 712 } 713 714 int kvm_available(void) 715 { 716 #ifdef CONFIG_KVM 717 return 1; 718 #else 719 return 0; 720 #endif 721 } 722 723 int xen_available(void) 724 { 725 #ifdef CONFIG_XEN 726 return 1; 727 #else 728 return 0; 729 #endif 730 } 731
