hw/qdev-properties.c

   1 #include "net.h"
   2 #include "qdev.h"
   3 #include "qerror.h"
   4 #include "blockdev.h"
   5
   6 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
   7 {
   8     void *ptr = dev;
   9     ptr += prop->offset;
  10     return ptr;
  11 }
  12
  13 static uint32_t qdev_get_prop_mask(Property *prop)
  14 {
  15     assert(prop->info->type == PROP_TYPE_BIT);
  16     return 0x1 << prop->bitnr;
  17 }
  18
  19 static void bit_prop_set(DeviceState *dev, Property *props, bool val)
  20 {
  21     uint32_t *p = qdev_get_prop_ptr(dev, props);
  22     uint32_t mask = qdev_get_prop_mask(props);
  23     if (val)
  24         *p |= mask;
  25     else
  26         *p &= ~mask;
  27 }
  28
  29 static void qdev_prop_cpy(DeviceState *dev, Property *props, void *src)
  30 {
  31     if (props->info->type == PROP_TYPE_BIT) {
  32         bool *defval = src;
  33         bit_prop_set(dev, props, *defval);
  34     } else {
  35         char *dst = qdev_get_prop_ptr(dev, props);
  36         memcpy(dst, src, props->info->size);
  37     }
  38 }
  39
  40 /* Bit */
  41 static int parse_bit(DeviceState *dev, Property *prop, const char *str)
  42 {
  43     if (!strncasecmp(str, "on", 2))
  44         bit_prop_set(dev, prop, true);
  45     else if (!strncasecmp(str, "off", 3))
  46         bit_prop_set(dev, prop, false);
  47     else
  48         return -EINVAL;
  49     return 0;
  50 }
  51
  52 static int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len)
  53 {
  54     uint32_t *p = qdev_get_prop_ptr(dev, prop);
  55     return snprintf(dest, len, (*p & qdev_get_prop_mask(prop)) ? "on" : "off");
  56 }
  57
  58 PropertyInfo qdev_prop_bit = {
  59     .name  = "on/off",
  60     .type  = PROP_TYPE_BIT,
  61     .size  = sizeof(uint32_t),
  62     .parse = parse_bit,
  63     .print = print_bit,
  64 };
  65
  66 /* --- 8bit integer --- */
  67
  68 static int parse_uint8(DeviceState *dev, Property *prop, const char *str)
  69 {
  70     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
  71     char *end;
  72
  73     /* accept both hex and decimal */
  74     *ptr = strtoul(str, &end, 0);
  75     if ((*end != '\0') || (end == str)) {
  76         return -EINVAL;
  77     }
  78
  79     return 0;
  80 }
  81
  82 static int print_uint8(DeviceState *dev, Property *prop, char *dest, size_t len)
  83 {
  84     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
  85     return snprintf(dest, len, "%" PRIu8, *ptr);
  86 }
  87
  88 PropertyInfo qdev_prop_uint8 = {
  89     .name  = "uint8",
  90     .type  = PROP_TYPE_UINT8,
  91     .size  = sizeof(uint8_t),
  92     .parse = parse_uint8,
  93     .print = print_uint8,
  94 };
  95
  96 /* --- 16bit integer --- */
  97
  98 static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
  99 {
 100     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 101     char *end;
 102
 103     /* accept both hex and decimal */
 104     *ptr = strtoul(str, &end, 0);
 105     if ((*end != '\0') || (end == str)) {
 106         return -EINVAL;
 107     }
 108
 109     return 0;
 110 }
 111
 112 static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
 113 {
 114     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 115     return snprintf(dest, len, "%" PRIu16, *ptr);
 116 }
 117
 118 PropertyInfo qdev_prop_uint16 = {
 119     .name  = "uint16",
 120     .type  = PROP_TYPE_UINT16,
 121     .size  = sizeof(uint16_t),
 122     .parse = parse_uint16,
 123     .print = print_uint16,
 124 };
 125
 126 /* --- 32bit integer --- */
 127
 128 static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
 129 {
 130     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 131     char *end;
 132
 133     /* accept both hex and decimal */
 134     *ptr = strtoul(str, &end, 0);
 135     if ((*end != '\0') || (end == str)) {
 136         return -EINVAL;
 137     }
 138
 139     return 0;
 140 }
 141
 142 static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len)
 143 {
 144     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 145     return snprintf(dest, len, "%" PRIu32, *ptr);
 146 }
 147
 148 PropertyInfo qdev_prop_uint32 = {
 149     .name  = "uint32",
 150     .type  = PROP_TYPE_UINT32,
 151     .size  = sizeof(uint32_t),
 152     .parse = parse_uint32,
 153     .print = print_uint32,
 154 };
 155
 156 static int parse_int32(DeviceState *dev, Property *prop, const char *str)
 157 {
 158     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 159     char *end;
 160
 161     *ptr = strtol(str, &end, 10);
 162     if ((*end != '\0') || (end == str)) {
 163         return -EINVAL;
 164     }
 165
 166     return 0;
 167 }
 168
 169 static int print_int32(DeviceState *dev, Property *prop, char *dest, size_t len)
 170 {
 171     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 172     return snprintf(dest, len, "%" PRId32, *ptr);
 173 }
 174
 175 PropertyInfo qdev_prop_int32 = {
 176     .name  = "int32",
 177     .type  = PROP_TYPE_INT32,
 178     .size  = sizeof(int32_t),
 179     .parse = parse_int32,
 180     .print = print_int32,
 181 };
 182
 183 /* --- 32bit hex value --- */
 184
 185 static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
 186 {
 187     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 188     char *end;
 189
 190     *ptr = strtoul(str, &end, 16);
 191     if ((*end != '\0') || (end == str)) {
 192         return -EINVAL;
 193     }
 194
 195     return 0;
 196 }
 197
 198 static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
 199 {
 200     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 201     return snprintf(dest, len, "0x%" PRIx32, *ptr);
 202 }
 203
 204 PropertyInfo qdev_prop_hex32 = {
 205     .name  = "hex32",
 206     .type  = PROP_TYPE_UINT32,
 207     .size  = sizeof(uint32_t),
 208     .parse = parse_hex32,
 209     .print = print_hex32,
 210 };
 211
 212 /* --- 64bit integer --- */
 213
 214 static int parse_uint64(DeviceState *dev, Property *prop, const char *str)
 215 {
 216     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 217     char *end;
 218
 219     /* accept both hex and decimal */
 220     *ptr = strtoull(str, &end, 0);
 221     if ((*end != '\0') || (end == str)) {
 222         return -EINVAL;
 223     }
 224
 225     return 0;
 226 }
 227
 228 static int print_uint64(DeviceState *dev, Property *prop, char *dest, size_t len)
 229 {
 230     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 231     return snprintf(dest, len, "%" PRIu64, *ptr);
 232 }
 233
 234 PropertyInfo qdev_prop_uint64 = {
 235     .name  = "uint64",
 236     .type  = PROP_TYPE_UINT64,
 237     .size  = sizeof(uint64_t),
 238     .parse = parse_uint64,
 239     .print = print_uint64,
 240 };
 241
 242 /* --- 64bit hex value --- */
 243
 244 static int parse_hex64(DeviceState *dev, Property *prop, const char *str)
 245 {
 246     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 247     char *end;
 248
 249     *ptr = strtoull(str, &end, 16);
 250     if ((*end != '\0') || (end == str)) {
 251         return -EINVAL;
 252     }
 253
 254     return 0;
 255 }
 256
 257 static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len)
 258 {
 259     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 260     return snprintf(dest, len, "0x%" PRIx64, *ptr);
 261 }
 262
 263 PropertyInfo qdev_prop_hex64 = {
 264     .name  = "hex64",
 265     .type  = PROP_TYPE_UINT64,
 266     .size  = sizeof(uint64_t),
 267     .parse = parse_hex64,
 268     .print = print_hex64,
 269 };
 270
 271 /* --- string --- */
 272
 273 static int parse_string(DeviceState *dev, Property *prop, const char *str)
 274 {
 275     char **ptr = qdev_get_prop_ptr(dev, prop);
 276
 277     if (*ptr)
 278         qemu_free(*ptr);
 279     *ptr = qemu_strdup(str);
 280     return 0;
 281 }
 282
 283 static void free_string(DeviceState *dev, Property *prop)
 284 {
 285     qemu_free(*(char **)qdev_get_prop_ptr(dev, prop));
 286 }
 287
 288 static int print_string(DeviceState *dev, Property *prop, char *dest, size_t len)
 289 {
 290     char **ptr = qdev_get_prop_ptr(dev, prop);
 291     if (!*ptr)
 292         return snprintf(dest, len, "<null>");
 293     return snprintf(dest, len, "\"%s\"", *ptr);
 294 }
 295
 296 PropertyInfo qdev_prop_string = {
 297     .name  = "string",
 298     .type  = PROP_TYPE_STRING,
 299     .size  = sizeof(char*),
 300     .parse = parse_string,
 301     .print = print_string,
 302     .free  = free_string,
 303 };
 304
 305 /* --- drive --- */
 306
 307 static int parse_drive(DeviceState *dev, Property *prop, const char *str)
 308 {
 309     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 310     BlockDriverState *bs;
 311
 312     bs = bdrv_find(str);
 313     if (bs == NULL)
 314         return -ENOENT;
 315     if (bdrv_attach(bs, dev) < 0)
 316         return -EEXIST;
 317     *ptr = bs;
 318     return 0;
 319 }
 320
 321 static void free_drive(DeviceState *dev, Property *prop)
 322 {
 323     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 324
 325     if (*ptr) {
 326         bdrv_detach(*ptr, dev);
 327         blockdev_auto_del(*ptr);
 328     }
 329 }
 330
 331 static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
 332 {
 333     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 334     return snprintf(dest, len, "%s",
 335                     *ptr ? bdrv_get_device_name(*ptr) : "<null>");
 336 }
 337
 338 PropertyInfo qdev_prop_drive = {
 339     .name  = "drive",
 340     .type  = PROP_TYPE_DRIVE,
 341     .size  = sizeof(BlockDriverState *),
 342     .parse = parse_drive,
 343     .print = print_drive,
 344     .free  = free_drive,
 345 };
 346
 347 /* --- character device --- */
 348
 349 static int parse_chr(DeviceState *dev, Property *prop, const char *str)
 350 {
 351     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 352
 353     *ptr = qemu_chr_find(str);
 354     if (*ptr == NULL) {
 355         return -ENOENT;
 356     }
 357     if ((*ptr)->avail_connections < 1) {
 358         return -EEXIST;
 359     }
 360     --(*ptr)->avail_connections;
 361     return 0;
 362 }
 363
 364 static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
 365 {
 366     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 367
 368     if (*ptr && (*ptr)->label) {
 369         return snprintf(dest, len, "%s", (*ptr)->label);
 370     } else {
 371         return snprintf(dest, len, "<null>");
 372     }
 373 }
 374
 375 PropertyInfo qdev_prop_chr = {
 376     .name  = "chr",
 377     .type  = PROP_TYPE_CHR,
 378     .size  = sizeof(CharDriverState*),
 379     .parse = parse_chr,
 380     .print = print_chr,
 381 };
 382
 383 /* --- netdev device --- */
 384
 385 static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
 386 {
 387     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 388
 389     *ptr = qemu_find_netdev(str);
 390     if (*ptr == NULL)
 391         return -ENOENT;
 392     if ((*ptr)->peer) {
 393         return -EEXIST;
 394     }
 395     return 0;
 396 }
 397
 398 static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
 399 {
 400     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 401
 402     if (*ptr && (*ptr)->name) {
 403         return snprintf(dest, len, "%s", (*ptr)->name);
 404     } else {
 405         return snprintf(dest, len, "<null>");
 406     }
 407 }
 408
 409 PropertyInfo qdev_prop_netdev = {
 410     .name  = "netdev",
 411     .type  = PROP_TYPE_NETDEV,
 412     .size  = sizeof(VLANClientState*),
 413     .parse = parse_netdev,
 414     .print = print_netdev,
 415 };
 416
 417 /* --- vlan --- */
 418
 419 static int parse_vlan(DeviceState *dev, Property *prop, const char *str)
 420 {
 421     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 422     int id;
 423
 424     if (sscanf(str, "%d", &id) != 1)
 425         return -EINVAL;
 426     *ptr = qemu_find_vlan(id, 1);
 427     if (*ptr == NULL)
 428         return -ENOENT;
 429     return 0;
 430 }
 431
 432 static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
 433 {
 434     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 435
 436     if (*ptr) {
 437         return snprintf(dest, len, "%d", (*ptr)->id);
 438     } else {
 439         return snprintf(dest, len, "<null>");
 440     }
 441 }
 442
 443 PropertyInfo qdev_prop_vlan = {
 444     .name  = "vlan",
 445     .type  = PROP_TYPE_VLAN,
 446     .size  = sizeof(VLANClientState*),
 447     .parse = parse_vlan,
 448     .print = print_vlan,
 449 };
 450
 451 /* --- pointer --- */
 452
 453 /* Not a proper property, just for dirty hacks.  TODO Remove it!  */
 454 PropertyInfo qdev_prop_ptr = {
 455     .name  = "ptr",
 456     .type  = PROP_TYPE_PTR,
 457     .size  = sizeof(void*),
 458 };
 459
 460 /* --- mac address --- */
 461
 462 /*
 463  * accepted syntax versions:
 464  *   01:02:03:04:05:06
 465  *   01-02-03-04-05-06
 466  */
 467 static int parse_mac(DeviceState *dev, Property *prop, const char *str)
 468 {
 469     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 470     int i, pos;
 471     char *p;
 472
 473     for (i = 0, pos = 0; i < 6; i++, pos += 3) {
 474         if (!qemu_isxdigit(str[pos]))
 475             return -EINVAL;
 476         if (!qemu_isxdigit(str[pos+1]))
 477             return -EINVAL;
 478         if (i == 5) {
 479             if (str[pos+2] != '\0')
 480                 return -EINVAL;
 481         } else {
 482             if (str[pos+2] != ':' && str[pos+2] != '-')
 483                 return -EINVAL;
 484         }
 485         mac->a[i] = strtol(str+pos, &p, 16);
 486     }
 487     return 0;
 488 }
 489
 490 static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
 491 {
 492     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 493
 494     return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
 495                     mac->a[0], mac->a[1], mac->a[2],
 496                     mac->a[3], mac->a[4], mac->a[5]);
 497 }
 498
 499 PropertyInfo qdev_prop_macaddr = {
 500     .name  = "macaddr",
 501     .type  = PROP_TYPE_MACADDR,
 502     .size  = sizeof(MACAddr),
 503     .parse = parse_mac,
 504     .print = print_mac,
 505 };
 506
 507 /* --- pci address --- */
 508
 509 /*
 510  * bus-local address, i.e. "$slot" or "$slot.$fn"
 511  */
 512 static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str)
 513 {
 514     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 515     unsigned int slot, fn, n;
 516
 517     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
 518         fn = 0;
 519         if (sscanf(str, "%x%n", &slot, &n) != 1) {
 520             return -EINVAL;
 521         }
 522     }
 523     if (str[n] != '\0')
 524         return -EINVAL;
 525     if (fn > 7)
 526         return -EINVAL;
 527     *ptr = slot << 3 | fn;
 528     return 0;
 529 }
 530
 531 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 532 {
 533     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 534
 535     if (*ptr == -1) {
 536         return snprintf(dest, len, "<unset>");
 537     } else {
 538         return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
 539     }
 540 }
 541
 542 PropertyInfo qdev_prop_pci_devfn = {
 543     .name  = "pci-devfn",
 544     .type  = PROP_TYPE_UINT32,
 545     .size  = sizeof(uint32_t),
 546     .parse = parse_pci_devfn,
 547     .print = print_pci_devfn,
 548 };
 549
 550 /* --- public helpers --- */
 551
 552 static Property *qdev_prop_walk(Property *props, const char *name)
 553 {
 554     if (!props)
 555         return NULL;
 556     while (props->name) {
 557         if (strcmp(props->name, name) == 0)
 558             return props;
 559         props++;
 560     }
 561     return NULL;
 562 }
 563
 564 static Property *qdev_prop_find(DeviceState *dev, const char *name)
 565 {
 566     Property *prop;
 567
 568     /* device properties */
 569     prop = qdev_prop_walk(dev->info->props, name);
 570     if (prop)
 571         return prop;
 572
 573     /* bus properties */
 574     prop = qdev_prop_walk(dev->parent_bus->info->props, name);
 575     if (prop)
 576         return prop;
 577
 578     return NULL;
 579 }
 580
 581 int qdev_prop_exists(DeviceState *dev, const char *name)
 582 {
 583     return qdev_prop_find(dev, name) ? true : false;
 584 }
 585
 586 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
 587 {
 588     Property *prop;
 589     int ret;
 590
 591     prop = qdev_prop_find(dev, name);
 592     /*
 593      * TODO Properties without a parse method are just for dirty
 594      * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
 595      * marked for removal.  The test !prop->info->parse should be
 596      * removed along with it.
 597      */
 598     if (!prop || !prop->info->parse) {
 599         qerror_report(QERR_PROPERTY_NOT_FOUND, dev->info->name, name);
 600         return -1;
 601     }
 602     ret = prop->info->parse(dev, prop, value);
 603     if (ret < 0) {
 604         switch (ret) {
 605         case -EEXIST:
 606             qerror_report(QERR_PROPERTY_VALUE_IN_USE,
 607                           dev->info->name, name, value);
 608             break;
 609         default:
 610         case -EINVAL:
 611             qerror_report(QERR_PROPERTY_VALUE_BAD,
 612                           dev->info->name, name, value);
 613             break;
 614         case -ENOENT:
 615             qerror_report(QERR_PROPERTY_VALUE_NOT_FOUND,
 616                           dev->info->name, name, value);
 617             break;
 618         }
 619         return -1;
 620     }
 621     return 0;
 622 }
 623
 624 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
 625 {
 626     Property *prop;
 627
 628     prop = qdev_prop_find(dev, name);
 629     if (!prop) {
 630         fprintf(stderr, "%s: property \"%s.%s\" not found\n",
 631                 __FUNCTION__, dev->info->name, name);
 632         abort();
 633     }
 634     if (prop->info->type != type) {
 635         fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
 636                 __FUNCTION__, dev->info->name, name);
 637         abort();
 638     }
 639     qdev_prop_cpy(dev, prop, src);
 640 }
 641
 642 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
 643 {
 644     qdev_prop_set(dev, name, &value, PROP_TYPE_BIT);
 645 }
 646
 647 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
 648 {
 649     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
 650 }
 651
 652 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 653 {
 654     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
 655 }
 656
 657 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 658 {
 659     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
 660 }
 661
 662 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
 663 {
 664     qdev_prop_set(dev, name, &value, PROP_TYPE_INT32);
 665 }
 666
 667 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
 668 {
 669     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
 670 }
 671
 672 void qdev_prop_set_string(DeviceState *dev, const char *name, char *value)
 673 {
 674     qdev_prop_set(dev, name, &value, PROP_TYPE_STRING);
 675 }
 676
 677 int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value)
 678 {
 679     int res;
 680
 681     res = bdrv_attach(value, dev);
 682     if (res < 0) {
 683         error_report("Can't attach drive %s to %s.%s: %s",
 684                      bdrv_get_device_name(value),
 685                      dev->id ? dev->id : dev->info->name,
 686                      name, strerror(-res));
 687         return -1;
 688     }
 689     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 690     return 0;
 691 }
 692
 693 void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value)
 694 {
 695     if (qdev_prop_set_drive(dev, name, value) < 0) {
 696         exit(1);
 697     }
 698 }
 699 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
 700 {
 701     qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
 702 }
 703
 704 void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value)
 705 {
 706     qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV);
 707 }
 708
 709 void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value)
 710 {
 711     qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN);
 712 }
 713
 714 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
 715 {
 716     qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR);
 717 }
 718
 719 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 720 {
 721     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
 722 }
 723
 724 void qdev_prop_set_defaults(DeviceState *dev, Property *props)
 725 {
 726     if (!props)
 727         return;
 728     while (props->name) {
 729         if (props->defval) {
 730             qdev_prop_cpy(dev, props, props->defval);
 731         }
 732         props++;
 733     }
 734 }
 735
 736 static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
 737
 738 static void qdev_prop_register_global(GlobalProperty *prop)
 739 {
 740     QTAILQ_INSERT_TAIL(&global_props, prop, next);
 741 }
 742
 743 void qdev_prop_register_global_list(GlobalProperty *props)
 744 {
 745     int i;
 746
 747     for (i = 0; props[i].driver != NULL; i++) {
 748         qdev_prop_register_global(props+i);
 749     }
 750 }
 751
 752 void qdev_prop_set_globals(DeviceState *dev)
 753 {
 754     GlobalProperty *prop;
 755
 756     QTAILQ_FOREACH(prop, &global_props, next) {
 757         if (strcmp(dev->info->name, prop->driver) != 0 &&
 758             strcmp(dev->info->bus_info->name, prop->driver) != 0) {
 759             continue;
 760         }
 761         if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
 762             exit(1);
 763         }
 764     }
 765 }
 766
 767 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 768 {
 769     GlobalProperty *g;
 770
 771     g = qemu_mallocz(sizeof(*g));
 772     g->driver   = qemu_opt_get(opts, "driver");
 773     g->property = qemu_opt_get(opts, "property");
 774     g->value    = qemu_opt_get(opts, "value");
 775     qdev_prop_register_global(g);
 776     return 0;
 777 }
 778
 779 void qemu_add_globals(void)
 780 {
 781     qemu_opts_foreach(qemu_find_opts("global"), qdev_add_one_global, NULL, 0);
 782 }