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 RAMBlock *last_block;
 108 static ram_addr_t last_offset;
 109
 110 static int ram_save_block(QEMUFile *f)
 111 {
 112     RAMBlock *block = last_block;
 113     ram_addr_t offset = last_offset;
 114     ram_addr_t current_addr;
 115     int bytes_sent = 0;
 116
 117     if (!block)
 118         block = QLIST_FIRST(&ram_list.blocks);
 119
 120     current_addr = block->offset + offset;
 121
 122     do {
 123         if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
 124             uint8_t *p;
 125             int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
 126
 127             cpu_physical_memory_reset_dirty(current_addr,
 128                                             current_addr + TARGET_PAGE_SIZE,
 129                                             MIGRATION_DIRTY_FLAG);
 130
 131             p = block->host + offset;
 132
 133             if (is_dup_page(p, *p)) {
 134                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
 135                 if (!cont) {
 136                     qemu_put_byte(f, strlen(block->idstr));
 137                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 138                                     strlen(block->idstr));
 139                 }
 140                 qemu_put_byte(f, *p);
 141                 bytes_sent = 1;
 142             } else {
 143                 qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
 144                 if (!cont) {
 145                     qemu_put_byte(f, strlen(block->idstr));
 146                     qemu_put_buffer(f, (uint8_t *)block->idstr,
 147                                     strlen(block->idstr));
 148                 }
 149                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 150                 bytes_sent = TARGET_PAGE_SIZE;
 151             }
 152
 153             break;
 154         }
 155
 156         offset += TARGET_PAGE_SIZE;
 157         if (offset >= block->length) {
 158             offset = 0;
 159             block = QLIST_NEXT(block, next);
 160             if (!block)
 161                 block = QLIST_FIRST(&ram_list.blocks);
 162         }
 163
 164         current_addr = block->offset + offset;
 165
 166     } while (current_addr != last_block->offset + last_offset);
 167
 168     last_block = block;
 169     last_offset = offset;
 170
 171     return bytes_sent;
 172 }
 173
 174 static uint64_t bytes_transferred;
 175
 176 static ram_addr_t ram_save_remaining(void)
 177 {
 178     RAMBlock *block;
 179     ram_addr_t count = 0;
 180
 181     QLIST_FOREACH(block, &ram_list.blocks, next) {
 182         ram_addr_t addr;
 183         for (addr = block->offset; addr < block->offset + block->length;
 184              addr += TARGET_PAGE_SIZE) {
 185             if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 186                 count++;
 187             }
 188         }
 189     }
 190
 191     return count;
 192 }
 193
 194 uint64_t ram_bytes_remaining(void)
 195 {
 196     return ram_save_remaining() * TARGET_PAGE_SIZE;
 197 }
 198
 199 uint64_t ram_bytes_transferred(void)
 200 {
 201     return bytes_transferred;
 202 }
 203
 204 uint64_t ram_bytes_total(void)
 205 {
 206     RAMBlock *block;
 207     uint64_t total = 0;
 208
 209     QLIST_FOREACH(block, &ram_list.blocks, next)
 210         total += block->length;
 211
 212     return total;
 213 }
 214
 215 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 216 {
 217     ram_addr_t addr;
 218     uint64_t bytes_transferred_last;
 219     double bwidth = 0;
 220     uint64_t expected_time = 0;
 221
 222     if (stage < 0) {
 223         cpu_physical_memory_set_dirty_tracking(0);
 224         return 0;
 225     }
 226
 227     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 228         qemu_file_set_error(f);
 229         return 0;
 230     }
 231
 232     if (stage == 1) {
 233         RAMBlock *block;
 234         bytes_transferred = 0;
 235         last_block = NULL;
 236         last_offset = 0;
 237
 238         /* Make sure all dirty bits are set */
 239         QLIST_FOREACH(block, &ram_list.blocks, next) {
 240             for (addr = block->offset; addr < block->offset + block->length;
 241                  addr += TARGET_PAGE_SIZE) {
 242                 if (!cpu_physical_memory_get_dirty(addr,
 243                                                    MIGRATION_DIRTY_FLAG)) {
 244                     cpu_physical_memory_set_dirty(addr);
 245                 }
 246             }
 247         }
 248
 249         /* Enable dirty memory tracking */
 250         cpu_physical_memory_set_dirty_tracking(1);
 251
 252         qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
 253
 254         QLIST_FOREACH(block, &ram_list.blocks, next) {
 255             qemu_put_byte(f, strlen(block->idstr));
 256             qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
 257             qemu_put_be64(f, block->length);
 258         }
 259     }
 260
 261     bytes_transferred_last = bytes_transferred;
 262     bwidth = qemu_get_clock_ns(rt_clock);
 263
 264     while (!qemu_file_rate_limit(f)) {
 265         int bytes_sent;
 266
 267         bytes_sent = ram_save_block(f);
 268         bytes_transferred += bytes_sent;
 269         if (bytes_sent == 0) { /* no more blocks */
 270             break;
 271         }
 272     }
 273
 274     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 275     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 276
 277     /* if we haven't transferred anything this round, force expected_time to a
 278      * a very high value, but without crashing */
 279     if (bwidth == 0) {
 280         bwidth = 0.000001;
 281     }
 282
 283     /* try transferring iterative blocks of memory */
 284     if (stage == 3) {
 285         int bytes_sent;
 286
 287         /* flush all remaining blocks regardless of rate limiting */
 288         while ((bytes_sent = ram_save_block(f)) != 0) {
 289             bytes_transferred += bytes_sent;
 290         }
 291         cpu_physical_memory_set_dirty_tracking(0);
 292     }
 293
 294     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 295
 296     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 297
 298     return (stage == 2) && (expected_time <= migrate_max_downtime());
 299 }
 300
 301 static inline void *host_from_stream_offset(QEMUFile *f,
 302                                             ram_addr_t offset,
 303                                             int flags)
 304 {
 305     static RAMBlock *block = NULL;
 306     char id[256];
 307     uint8_t len;
 308
 309     if (flags & RAM_SAVE_FLAG_CONTINUE) {
 310         if (!block) {
 311             fprintf(stderr, "Ack, bad migration stream!\n");
 312             return NULL;
 313         }
 314
 315         return block->host + offset;
 316     }
 317
 318     len = qemu_get_byte(f);
 319     qemu_get_buffer(f, (uint8_t *)id, len);
 320     id[len] = 0;
 321
 322     QLIST_FOREACH(block, &ram_list.blocks, next) {
 323         if (!strncmp(id, block->idstr, sizeof(id)))
 324             return block->host + offset;
 325     }
 326
 327     fprintf(stderr, "Can't find block %s!\n", id);
 328     return NULL;
 329 }
 330
 331 int ram_load(QEMUFile *f, void *opaque, int version_id)
 332 {
 333     ram_addr_t addr;
 334     int flags;
 335
 336     if (version_id < 3 || version_id > 4) {
 337         return -EINVAL;
 338     }
 339
 340     do {
 341         addr = qemu_get_be64(f);
 342
 343         flags = addr & ~TARGET_PAGE_MASK;
 344         addr &= TARGET_PAGE_MASK;
 345
 346         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 347             if (version_id == 3) {
 348                 if (addr != ram_bytes_total()) {
 349                     return -EINVAL;
 350                 }
 351             } else {
 352                 /* Synchronize RAM block list */
 353                 char id[256];
 354                 ram_addr_t length;
 355                 ram_addr_t total_ram_bytes = addr;
 356
 357                 while (total_ram_bytes) {
 358                     RAMBlock *block;
 359                     uint8_t len;
 360
 361                     len = qemu_get_byte(f);
 362                     qemu_get_buffer(f, (uint8_t *)id, len);
 363                     id[len] = 0;
 364                     length = qemu_get_be64(f);
 365
 366                     QLIST_FOREACH(block, &ram_list.blocks, next) {
 367                         if (!strncmp(id, block->idstr, sizeof(id))) {
 368                             if (block->length != length)
 369                                 return -EINVAL;
 370                             break;
 371                         }
 372                     }
 373
 374                     if (!block) {
 375                         fprintf(stderr, "Unknown ramblock \"%s\", cannot "
 376                                 "accept migration\n", id);
 377                         return -EINVAL;
 378                     }
 379
 380                     total_ram_bytes -= length;
 381                 }
 382             }
 383         }
 384
 385         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 386             void *host;
 387             uint8_t ch;
 388
 389             if (version_id == 3)
 390                 host = qemu_get_ram_ptr(addr);
 391             else
 392                 host = host_from_stream_offset(f, addr, flags);
 393             if (!host) {
 394                 return -EINVAL;
 395             }
 396
 397             ch = qemu_get_byte(f);
 398             memset(host, ch, TARGET_PAGE_SIZE);
 399 #ifndef _WIN32
 400             if (ch == 0 &&
 401                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 402                 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
 403             }
 404 #endif
 405         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 406             void *host;
 407
 408             if (version_id == 3)
 409                 host = qemu_get_ram_ptr(addr);
 410             else
 411                 host = host_from_stream_offset(f, addr, flags);
 412
 413             qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
 414         }
 415         if (qemu_file_has_error(f)) {
 416             return -EIO;
 417         }
 418     } while (!(flags & RAM_SAVE_FLAG_EOS));
 419
 420     return 0;
 421 }
 422
 423 void qemu_service_io(void)
 424 {
 425     qemu_notify_event();
 426 }
 427
 428 #ifdef HAS_AUDIO
 429 struct soundhw soundhw[] = {
 430 #ifdef HAS_AUDIO_CHOICE
 431 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 432     {
 433         "pcspk",
 434         "PC speaker",
 435         0,
 436         1,
 437         { .init_isa = pcspk_audio_init }
 438     },
 439 #endif
 440
 441 #ifdef CONFIG_SB16
 442     {
 443         "sb16",
 444         "Creative Sound Blaster 16",
 445         0,
 446         1,
 447         { .init_isa = SB16_init }
 448     },
 449 #endif
 450
 451 #ifdef CONFIG_CS4231A
 452     {
 453         "cs4231a",
 454         "CS4231A",
 455         0,
 456         1,
 457         { .init_isa = cs4231a_init }
 458     },
 459 #endif
 460
 461 #ifdef CONFIG_ADLIB
 462     {
 463         "adlib",
 464 #ifdef HAS_YMF262
 465         "Yamaha YMF262 (OPL3)",
 466 #else
 467         "Yamaha YM3812 (OPL2)",
 468 #endif
 469         0,
 470         1,
 471         { .init_isa = Adlib_init }
 472     },
 473 #endif
 474
 475 #ifdef CONFIG_GUS
 476     {
 477         "gus",
 478         "Gravis Ultrasound GF1",
 479         0,
 480         1,
 481         { .init_isa = GUS_init }
 482     },
 483 #endif
 484
 485 #ifdef CONFIG_AC97
 486     {
 487         "ac97",
 488         "Intel 82801AA AC97 Audio",
 489         0,
 490         0,
 491         { .init_pci = ac97_init }
 492     },
 493 #endif
 494
 495 #ifdef CONFIG_ES1370
 496     {
 497         "es1370",
 498         "ENSONIQ AudioPCI ES1370",
 499         0,
 500         0,
 501         { .init_pci = es1370_init }
 502     },
 503 #endif
 504
 505 #endif /* HAS_AUDIO_CHOICE */
 506
 507     { NULL, NULL, 0, 0, { NULL } }
 508 };
 509
 510 void select_soundhw(const char *optarg)
 511 {
 512     struct soundhw *c;
 513
 514     if (*optarg == '?') {
 515     show_valid_cards:
 516
 517         printf("Valid sound card names (comma separated):\n");
 518         for (c = soundhw; c->name; ++c) {
 519             printf ("%-11s %s\n", c->name, c->descr);
 520         }
 521         printf("\n-soundhw all will enable all of the above\n");
 522         exit(*optarg != '?');
 523     }
 524     else {
 525         size_t l;
 526         const char *p;
 527         char *e;
 528         int bad_card = 0;
 529
 530         if (!strcmp(optarg, "all")) {
 531             for (c = soundhw; c->name; ++c) {
 532                 c->enabled = 1;
 533             }
 534             return;
 535         }
 536
 537         p = optarg;
 538         while (*p) {
 539             e = strchr(p, ',');
 540             l = !e ? strlen(p) : (size_t) (e - p);
 541
 542             for (c = soundhw; c->name; ++c) {
 543                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 544                     c->enabled = 1;
 545                     break;
 546                 }
 547             }
 548
 549             if (!c->name) {
 550                 if (l > 80) {
 551                     fprintf(stderr,
 552                             "Unknown sound card name (too big to show)\n");
 553                 }
 554                 else {
 555                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 556                             (int) l, p);
 557                 }
 558                 bad_card = 1;
 559             }
 560             p += l + (e != NULL);
 561         }
 562
 563         if (bad_card) {
 564             goto show_valid_cards;
 565         }
 566     }
 567 }
 568 #else
 569 void select_soundhw(const char *optarg)
 570 {
 571 }
 572 #endif
 573
 574 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 575 {
 576     int ret;
 577
 578     if (strlen(str) != 36) {
 579         return -1;
 580     }
 581
 582     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 583                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 584                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 585                  &uuid[15]);
 586
 587     if (ret != 16) {
 588         return -1;
 589     }
 590 #ifdef TARGET_I386
 591     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 592 #endif
 593     return 0;
 594 }
 595
 596 void do_acpitable_option(const char *optarg)
 597 {
 598 #ifdef TARGET_I386
 599     if (acpi_table_add(optarg) < 0) {
 600         fprintf(stderr, "Wrong acpi table provided\n");
 601         exit(1);
 602     }
 603 #endif
 604 }
 605
 606 void do_smbios_option(const char *optarg)
 607 {
 608 #ifdef TARGET_I386
 609     if (smbios_entry_add(optarg) < 0) {
 610         fprintf(stderr, "Wrong smbios provided\n");
 611         exit(1);
 612     }
 613 #endif
 614 }
 615
 616 void cpudef_init(void)
 617 {
 618 #if defined(cpudef_setup)
 619     cpudef_setup(); /* parse cpu definitions in target config file */
 620 #endif
 621 }
 622
 623 int audio_available(void)
 624 {
 625 #ifdef HAS_AUDIO
 626     return 1;
 627 #else
 628     return 0;
 629 #endif
 630 }
 631
 632 int kvm_available(void)
 633 {
 634 #ifdef CONFIG_KVM
 635     return 1;
 636 #else
 637     return 0;
 638 #endif
 639 }
 640
 641 int xen_available(void)
 642 {
 643 #ifdef CONFIG_XEN
 644     return 1;
 645 #else
 646     return 0;
 647 #endif
 648 }