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/mman.h>
  28 #endif
  29 #include "config.h"
  30 #include "monitor.h"
  31 #include "sysemu.h"
  32 #include "arch_init.h"
  33 #include "audio/audio.h"
  34 #include "hw/pc.h"
  35 #include "hw/pci.h"
  36 #include "hw/audiodev.h"
  37 #include "kvm.h"
  38 #include "migration.h"
  39 #include "net.h"
  40 #include "gdbstub.h"
  41 #include "hw/smbios.h"
  42
  43 #ifdef TARGET_SPARC
  44 int graphic_width = 1024;
  45 int graphic_height = 768;
  46 int graphic_depth = 8;
  47 #else
  48 int graphic_width = 800;
  49 int graphic_height = 600;
  50 int graphic_depth = 15;
  51 #endif
  52
  53 const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
  54
  55 #if defined(TARGET_ALPHA)
  56 #define QEMU_ARCH QEMU_ARCH_ALPHA
  57 #elif defined(TARGET_ARM)
  58 #define QEMU_ARCH QEMU_ARCH_ARM
  59 #elif defined(TARGET_CRIS)
  60 #define QEMU_ARCH QEMU_ARCH_CRIS
  61 #elif defined(TARGET_I386)
  62 #define QEMU_ARCH QEMU_ARCH_I386
  63 #elif defined(TARGET_M68K)
  64 #define QEMU_ARCH QEMU_ARCH_M68K
  65 #elif defined(TARGET_MICROBLAZE)
  66 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
  67 #elif defined(TARGET_MIPS)
  68 #define QEMU_ARCH QEMU_ARCH_MIPS
  69 #elif defined(TARGET_PPC)
  70 #define QEMU_ARCH QEMU_ARCH_PPC
  71 #elif defined(TARGET_S390X)
  72 #define QEMU_ARCH QEMU_ARCH_S390X
  73 #elif defined(TARGET_SH4)
  74 #define QEMU_ARCH QEMU_ARCH_SH4
  75 #elif defined(TARGET_SPARC)
  76 #define QEMU_ARCH QEMU_ARCH_SPARC
  77 #endif
  78
  79 const uint32_t arch_type = QEMU_ARCH;
  80
  81 /***********************************************************/
  82 /* ram save/restore */
  83
  84 #define RAM_SAVE_FLAG_FULL      0x01 /* Obsolete, not used anymore */
  85 #define RAM_SAVE_FLAG_COMPRESS  0x02
  86 #define RAM_SAVE_FLAG_MEM_SIZE  0x04
  87 #define RAM_SAVE_FLAG_PAGE      0x08
  88 #define RAM_SAVE_FLAG_EOS       0x10
  89
  90 static int is_dup_page(uint8_t *page, uint8_t ch)
  91 {
  92     uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
  93     uint32_t *array = (uint32_t *)page;
  94     int i;
  95
  96     for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
  97         if (array[i] != val) {
  98             return 0;
  99         }
 100     }
 101
 102     return 1;
 103 }
 104
 105 static int ram_save_block(QEMUFile *f)
 106 {
 107     static ram_addr_t current_addr = 0;
 108     ram_addr_t saved_addr = current_addr;
 109     ram_addr_t addr = 0;
 110     int found = 0;
 111
 112     while (addr < last_ram_offset) {
 113         if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
 114             uint8_t *p;
 115
 116             cpu_physical_memory_reset_dirty(current_addr,
 117                                             current_addr + TARGET_PAGE_SIZE,
 118                                             MIGRATION_DIRTY_FLAG);
 119
 120             p = qemu_get_ram_ptr(current_addr);
 121
 122             if (is_dup_page(p, *p)) {
 123                 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
 124                 qemu_put_byte(f, *p);
 125             } else {
 126                 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
 127                 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
 128             }
 129
 130             found = 1;
 131             break;
 132         }
 133         addr += TARGET_PAGE_SIZE;
 134         current_addr = (saved_addr + addr) % last_ram_offset;
 135     }
 136
 137     return found;
 138 }
 139
 140 static uint64_t bytes_transferred;
 141
 142 static ram_addr_t ram_save_remaining(void)
 143 {
 144     ram_addr_t addr;
 145     ram_addr_t count = 0;
 146
 147     for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
 148         if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 149             count++;
 150         }
 151     }
 152
 153     return count;
 154 }
 155
 156 uint64_t ram_bytes_remaining(void)
 157 {
 158     return ram_save_remaining() * TARGET_PAGE_SIZE;
 159 }
 160
 161 uint64_t ram_bytes_transferred(void)
 162 {
 163     return bytes_transferred;
 164 }
 165
 166 uint64_t ram_bytes_total(void)
 167 {
 168     return last_ram_offset;
 169 }
 170
 171 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 172 {
 173     ram_addr_t addr;
 174     uint64_t bytes_transferred_last;
 175     double bwidth = 0;
 176     uint64_t expected_time = 0;
 177
 178     if (stage < 0) {
 179         cpu_physical_memory_set_dirty_tracking(0);
 180         return 0;
 181     }
 182
 183     if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
 184         qemu_file_set_error(f);
 185         return 0;
 186     }
 187
 188     if (stage == 1) {
 189         bytes_transferred = 0;
 190
 191         /* Make sure all dirty bits are set */
 192         for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
 193             if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
 194                 cpu_physical_memory_set_dirty(addr);
 195             }
 196         }
 197
 198         /* Enable dirty memory tracking */
 199         cpu_physical_memory_set_dirty_tracking(1);
 200
 201         qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
 202     }
 203
 204     bytes_transferred_last = bytes_transferred;
 205     bwidth = qemu_get_clock_ns(rt_clock);
 206
 207     while (!qemu_file_rate_limit(f)) {
 208         int ret;
 209
 210         ret = ram_save_block(f);
 211         bytes_transferred += ret * TARGET_PAGE_SIZE;
 212         if (ret == 0) { /* no more blocks */
 213             break;
 214         }
 215     }
 216
 217     bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
 218     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 219
 220     /* if we haven't transferred anything this round, force expected_time to a
 221      * a very high value, but without crashing */
 222     if (bwidth == 0) {
 223         bwidth = 0.000001;
 224     }
 225
 226     /* try transferring iterative blocks of memory */
 227     if (stage == 3) {
 228         /* flush all remaining blocks regardless of rate limiting */
 229         while (ram_save_block(f) != 0) {
 230             bytes_transferred += TARGET_PAGE_SIZE;
 231         }
 232         cpu_physical_memory_set_dirty_tracking(0);
 233     }
 234
 235     qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
 236
 237     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 238
 239     return (stage == 2) && (expected_time <= migrate_max_downtime());
 240 }
 241
 242 int ram_load(QEMUFile *f, void *opaque, int version_id)
 243 {
 244     ram_addr_t addr;
 245     int flags;
 246
 247     if (version_id != 3) {
 248         return -EINVAL;
 249     }
 250
 251     do {
 252         addr = qemu_get_be64(f);
 253
 254         flags = addr & ~TARGET_PAGE_MASK;
 255         addr &= TARGET_PAGE_MASK;
 256
 257         if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
 258             if (addr != last_ram_offset) {
 259                 return -EINVAL;
 260             }
 261         }
 262
 263         if (flags & RAM_SAVE_FLAG_COMPRESS) {
 264             uint8_t ch = qemu_get_byte(f);
 265             memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
 266 #ifndef _WIN32
 267             if (ch == 0 &&
 268                 (!kvm_enabled() || kvm_has_sync_mmu())) {
 269                 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE,
 270                         MADV_DONTNEED);
 271             }
 272 #endif
 273         } else if (flags & RAM_SAVE_FLAG_PAGE) {
 274             qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
 275         }
 276         if (qemu_file_has_error(f)) {
 277             return -EIO;
 278         }
 279     } while (!(flags & RAM_SAVE_FLAG_EOS));
 280
 281     return 0;
 282 }
 283
 284 void qemu_service_io(void)
 285 {
 286     qemu_notify_event();
 287 }
 288
 289 #ifdef HAS_AUDIO
 290 struct soundhw soundhw[] = {
 291 #ifdef HAS_AUDIO_CHOICE
 292 #if defined(TARGET_I386) || defined(TARGET_MIPS)
 293     {
 294         "pcspk",
 295         "PC speaker",
 296         0,
 297         1,
 298         { .init_isa = pcspk_audio_init }
 299     },
 300 #endif
 301
 302 #ifdef CONFIG_SB16
 303     {
 304         "sb16",
 305         "Creative Sound Blaster 16",
 306         0,
 307         1,
 308         { .init_isa = SB16_init }
 309     },
 310 #endif
 311
 312 #ifdef CONFIG_CS4231A
 313     {
 314         "cs4231a",
 315         "CS4231A",
 316         0,
 317         1,
 318         { .init_isa = cs4231a_init }
 319     },
 320 #endif
 321
 322 #ifdef CONFIG_ADLIB
 323     {
 324         "adlib",
 325 #ifdef HAS_YMF262
 326         "Yamaha YMF262 (OPL3)",
 327 #else
 328         "Yamaha YM3812 (OPL2)",
 329 #endif
 330         0,
 331         1,
 332         { .init_isa = Adlib_init }
 333     },
 334 #endif
 335
 336 #ifdef CONFIG_GUS
 337     {
 338         "gus",
 339         "Gravis Ultrasound GF1",
 340         0,
 341         1,
 342         { .init_isa = GUS_init }
 343     },
 344 #endif
 345
 346 #ifdef CONFIG_AC97
 347     {
 348         "ac97",
 349         "Intel 82801AA AC97 Audio",
 350         0,
 351         0,
 352         { .init_pci = ac97_init }
 353     },
 354 #endif
 355
 356 #ifdef CONFIG_ES1370
 357     {
 358         "es1370",
 359         "ENSONIQ AudioPCI ES1370",
 360         0,
 361         0,
 362         { .init_pci = es1370_init }
 363     },
 364 #endif
 365
 366 #endif /* HAS_AUDIO_CHOICE */
 367
 368     { NULL, NULL, 0, 0, { NULL } }
 369 };
 370
 371 void select_soundhw(const char *optarg)
 372 {
 373     struct soundhw *c;
 374
 375     if (*optarg == '?') {
 376     show_valid_cards:
 377
 378         printf("Valid sound card names (comma separated):\n");
 379         for (c = soundhw; c->name; ++c) {
 380             printf ("%-11s %s\n", c->name, c->descr);
 381         }
 382         printf("\n-soundhw all will enable all of the above\n");
 383         exit(*optarg != '?');
 384     }
 385     else {
 386         size_t l;
 387         const char *p;
 388         char *e;
 389         int bad_card = 0;
 390
 391         if (!strcmp(optarg, "all")) {
 392             for (c = soundhw; c->name; ++c) {
 393                 c->enabled = 1;
 394             }
 395             return;
 396         }
 397
 398         p = optarg;
 399         while (*p) {
 400             e = strchr(p, ',');
 401             l = !e ? strlen(p) : (size_t) (e - p);
 402
 403             for (c = soundhw; c->name; ++c) {
 404                 if (!strncmp(c->name, p, l) && !c->name[l]) {
 405                     c->enabled = 1;
 406                     break;
 407                 }
 408             }
 409
 410             if (!c->name) {
 411                 if (l > 80) {
 412                     fprintf(stderr,
 413                             "Unknown sound card name (too big to show)\n");
 414                 }
 415                 else {
 416                     fprintf(stderr, "Unknown sound card name `%.*s'\n",
 417                             (int) l, p);
 418                 }
 419                 bad_card = 1;
 420             }
 421             p += l + (e != NULL);
 422         }
 423
 424         if (bad_card) {
 425             goto show_valid_cards;
 426         }
 427     }
 428 }
 429 #else
 430 void select_soundhw(const char *optarg)
 431 {
 432 }
 433 #endif
 434
 435 int qemu_uuid_parse(const char *str, uint8_t *uuid)
 436 {
 437     int ret;
 438
 439     if (strlen(str) != 36) {
 440         return -1;
 441     }
 442
 443     ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
 444                  &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
 445                  &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
 446                  &uuid[15]);
 447
 448     if (ret != 16) {
 449         return -1;
 450     }
 451 #ifdef TARGET_I386
 452     smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
 453 #endif
 454     return 0;
 455 }
 456
 457 void do_acpitable_option(const char *optarg)
 458 {
 459 #ifdef TARGET_I386
 460     if (acpi_table_add(optarg) < 0) {
 461         fprintf(stderr, "Wrong acpi table provided\n");
 462         exit(1);
 463     }
 464 #endif
 465 }
 466
 467 void do_smbios_option(const char *optarg)
 468 {
 469 #ifdef TARGET_I386
 470     if (smbios_entry_add(optarg) < 0) {
 471         fprintf(stderr, "Wrong smbios provided\n");
 472         exit(1);
 473     }
 474 #endif
 475 }
 476
 477 void cpudef_init(void)
 478 {
 479 #if defined(cpudef_setup)
 480     cpudef_setup(); /* parse cpu definitions in target config file */
 481 #endif
 482 }
 483
 484 int audio_available(void)
 485 {
 486 #ifdef HAS_AUDIO
 487     return 1;
 488 #else
 489     return 0;
 490 #endif
 491 }
 492
 493 int kvm_available(void)
 494 {
 495 #ifdef CONFIG_KVM
 496     return 1;
 497 #else
 498     return 0;
 499 #endif
 500 }
 501
 502 int xen_available(void)
 503 {
 504 #ifdef CONFIG_XEN
 505     return 1;
 506 #else
 507     return 0;
 508 #endif
 509 }