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 /* --- 8bit hex value --- */
  97
  98 static int parse_hex8(DeviceState *dev, Property *prop, const char *str)
  99 {
 100     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 101     char *end;
 102
 103     *ptr = strtoul(str, &end, 16);
 104     if ((*end != '\0') || (end == str)) {
 105         return -EINVAL;
 106     }
 107
 108     return 0;
 109 }
 110
 111 static int print_hex8(DeviceState *dev, Property *prop, char *dest, size_t len)
 112 {
 113     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 114     return snprintf(dest, len, "0x%" PRIx8, *ptr);
 115 }
 116
 117 PropertyInfo qdev_prop_hex8 = {
 118     .name  = "hex8",
 119     .type  = PROP_TYPE_UINT8,
 120     .size  = sizeof(uint8_t),
 121     .parse = parse_hex8,
 122     .print = print_hex8,
 123 };
 124
 125 /* --- 16bit integer --- */
 126
 127 static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
 128 {
 129     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 130     char *end;
 131
 132     /* accept both hex and decimal */
 133     *ptr = strtoul(str, &end, 0);
 134     if ((*end != '\0') || (end == str)) {
 135         return -EINVAL;
 136     }
 137
 138     return 0;
 139 }
 140
 141 static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
 142 {
 143     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 144     return snprintf(dest, len, "%" PRIu16, *ptr);
 145 }
 146
 147 PropertyInfo qdev_prop_uint16 = {
 148     .name  = "uint16",
 149     .type  = PROP_TYPE_UINT16,
 150     .size  = sizeof(uint16_t),
 151     .parse = parse_uint16,
 152     .print = print_uint16,
 153 };
 154
 155 /* --- 32bit integer --- */
 156
 157 static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
 158 {
 159     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 160     char *end;
 161
 162     /* accept both hex and decimal */
 163     *ptr = strtoul(str, &end, 0);
 164     if ((*end != '\0') || (end == str)) {
 165         return -EINVAL;
 166     }
 167
 168     return 0;
 169 }
 170
 171 static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len)
 172 {
 173     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 174     return snprintf(dest, len, "%" PRIu32, *ptr);
 175 }
 176
 177 PropertyInfo qdev_prop_uint32 = {
 178     .name  = "uint32",
 179     .type  = PROP_TYPE_UINT32,
 180     .size  = sizeof(uint32_t),
 181     .parse = parse_uint32,
 182     .print = print_uint32,
 183 };
 184
 185 static int parse_int32(DeviceState *dev, Property *prop, const char *str)
 186 {
 187     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 188     char *end;
 189
 190     *ptr = strtol(str, &end, 10);
 191     if ((*end != '\0') || (end == str)) {
 192         return -EINVAL;
 193     }
 194
 195     return 0;
 196 }
 197
 198 static int print_int32(DeviceState *dev, Property *prop, char *dest, size_t len)
 199 {
 200     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 201     return snprintf(dest, len, "%" PRId32, *ptr);
 202 }
 203
 204 PropertyInfo qdev_prop_int32 = {
 205     .name  = "int32",
 206     .type  = PROP_TYPE_INT32,
 207     .size  = sizeof(int32_t),
 208     .parse = parse_int32,
 209     .print = print_int32,
 210 };
 211
 212 /* --- 32bit hex value --- */
 213
 214 static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
 215 {
 216     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 217     char *end;
 218
 219     *ptr = strtoul(str, &end, 16);
 220     if ((*end != '\0') || (end == str)) {
 221         return -EINVAL;
 222     }
 223
 224     return 0;
 225 }
 226
 227 static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
 228 {
 229     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 230     return snprintf(dest, len, "0x%" PRIx32, *ptr);
 231 }
 232
 233 PropertyInfo qdev_prop_hex32 = {
 234     .name  = "hex32",
 235     .type  = PROP_TYPE_UINT32,
 236     .size  = sizeof(uint32_t),
 237     .parse = parse_hex32,
 238     .print = print_hex32,
 239 };
 240
 241 /* --- 64bit integer --- */
 242
 243 static int parse_uint64(DeviceState *dev, Property *prop, const char *str)
 244 {
 245     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 246     char *end;
 247
 248     /* accept both hex and decimal */
 249     *ptr = strtoull(str, &end, 0);
 250     if ((*end != '\0') || (end == str)) {
 251         return -EINVAL;
 252     }
 253
 254     return 0;
 255 }
 256
 257 static int print_uint64(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, "%" PRIu64, *ptr);
 261 }
 262
 263 PropertyInfo qdev_prop_uint64 = {
 264     .name  = "uint64",
 265     .type  = PROP_TYPE_UINT64,
 266     .size  = sizeof(uint64_t),
 267     .parse = parse_uint64,
 268     .print = print_uint64,
 269 };
 270
 271 /* --- 64bit hex value --- */
 272
 273 static int parse_hex64(DeviceState *dev, Property *prop, const char *str)
 274 {
 275     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 276     char *end;
 277
 278     *ptr = strtoull(str, &end, 16);
 279     if ((*end != '\0') || (end == str)) {
 280         return -EINVAL;
 281     }
 282
 283     return 0;
 284 }
 285
 286 static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len)
 287 {
 288     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 289     return snprintf(dest, len, "0x%" PRIx64, *ptr);
 290 }
 291
 292 PropertyInfo qdev_prop_hex64 = {
 293     .name  = "hex64",
 294     .type  = PROP_TYPE_UINT64,
 295     .size  = sizeof(uint64_t),
 296     .parse = parse_hex64,
 297     .print = print_hex64,
 298 };
 299
 300 /* --- string --- */
 301
 302 static int parse_string(DeviceState *dev, Property *prop, const char *str)
 303 {
 304     char **ptr = qdev_get_prop_ptr(dev, prop);
 305
 306     if (*ptr)
 307         g_free(*ptr);
 308     *ptr = g_strdup(str);
 309     return 0;
 310 }
 311
 312 static void free_string(DeviceState *dev, Property *prop)
 313 {
 314     g_free(*(char **)qdev_get_prop_ptr(dev, prop));
 315 }
 316
 317 static int print_string(DeviceState *dev, Property *prop, char *dest, size_t len)
 318 {
 319     char **ptr = qdev_get_prop_ptr(dev, prop);
 320     if (!*ptr)
 321         return snprintf(dest, len, "<null>");
 322     return snprintf(dest, len, "\"%s\"", *ptr);
 323 }
 324
 325 PropertyInfo qdev_prop_string = {
 326     .name  = "string",
 327     .type  = PROP_TYPE_STRING,
 328     .size  = sizeof(char*),
 329     .parse = parse_string,
 330     .print = print_string,
 331     .free  = free_string,
 332 };
 333
 334 /* --- drive --- */
 335
 336 static int parse_drive(DeviceState *dev, Property *prop, const char *str)
 337 {
 338     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 339     BlockDriverState *bs;
 340
 341     bs = bdrv_find(str);
 342     if (bs == NULL)
 343         return -ENOENT;
 344     if (bdrv_attach_dev(bs, dev) < 0)
 345         return -EEXIST;
 346     *ptr = bs;
 347     return 0;
 348 }
 349
 350 static void free_drive(DeviceState *dev, Property *prop)
 351 {
 352     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 353
 354     if (*ptr) {
 355         bdrv_detach_dev(*ptr, dev);
 356         blockdev_auto_del(*ptr);
 357     }
 358 }
 359
 360 static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
 361 {
 362     BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 363     return snprintf(dest, len, "%s",
 364                     *ptr ? bdrv_get_device_name(*ptr) : "<null>");
 365 }
 366
 367 PropertyInfo qdev_prop_drive = {
 368     .name  = "drive",
 369     .type  = PROP_TYPE_DRIVE,
 370     .size  = sizeof(BlockDriverState *),
 371     .parse = parse_drive,
 372     .print = print_drive,
 373     .free  = free_drive,
 374 };
 375
 376 /* --- character device --- */
 377
 378 static int parse_chr(DeviceState *dev, Property *prop, const char *str)
 379 {
 380     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 381
 382     *ptr = qemu_chr_find(str);
 383     if (*ptr == NULL) {
 384         return -ENOENT;
 385     }
 386     if ((*ptr)->avail_connections < 1) {
 387         return -EEXIST;
 388     }
 389     --(*ptr)->avail_connections;
 390     return 0;
 391 }
 392
 393 static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
 394 {
 395     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 396
 397     if (*ptr && (*ptr)->label) {
 398         return snprintf(dest, len, "%s", (*ptr)->label);
 399     } else {
 400         return snprintf(dest, len, "<null>");
 401     }
 402 }
 403
 404 PropertyInfo qdev_prop_chr = {
 405     .name  = "chr",
 406     .type  = PROP_TYPE_CHR,
 407     .size  = sizeof(CharDriverState*),
 408     .parse = parse_chr,
 409     .print = print_chr,
 410 };
 411
 412 /* --- netdev device --- */
 413
 414 static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
 415 {
 416     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 417
 418     *ptr = qemu_find_netdev(str);
 419     if (*ptr == NULL)
 420         return -ENOENT;
 421     if ((*ptr)->peer) {
 422         return -EEXIST;
 423     }
 424     return 0;
 425 }
 426
 427 static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
 428 {
 429     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 430
 431     if (*ptr && (*ptr)->name) {
 432         return snprintf(dest, len, "%s", (*ptr)->name);
 433     } else {
 434         return snprintf(dest, len, "<null>");
 435     }
 436 }
 437
 438 PropertyInfo qdev_prop_netdev = {
 439     .name  = "netdev",
 440     .type  = PROP_TYPE_NETDEV,
 441     .size  = sizeof(VLANClientState*),
 442     .parse = parse_netdev,
 443     .print = print_netdev,
 444 };
 445
 446 /* --- vlan --- */
 447
 448 static int parse_vlan(DeviceState *dev, Property *prop, const char *str)
 449 {
 450     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 451     int id;
 452
 453     if (sscanf(str, "%d", &id) != 1)
 454         return -EINVAL;
 455     *ptr = qemu_find_vlan(id, 1);
 456     if (*ptr == NULL)
 457         return -ENOENT;
 458     return 0;
 459 }
 460
 461 static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
 462 {
 463     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 464
 465     if (*ptr) {
 466         return snprintf(dest, len, "%d", (*ptr)->id);
 467     } else {
 468         return snprintf(dest, len, "<null>");
 469     }
 470 }
 471
 472 PropertyInfo qdev_prop_vlan = {
 473     .name  = "vlan",
 474     .type  = PROP_TYPE_VLAN,
 475     .size  = sizeof(VLANClientState*),
 476     .parse = parse_vlan,
 477     .print = print_vlan,
 478 };
 479
 480 /* --- pointer --- */
 481
 482 /* Not a proper property, just for dirty hacks.  TODO Remove it!  */
 483 PropertyInfo qdev_prop_ptr = {
 484     .name  = "ptr",
 485     .type  = PROP_TYPE_PTR,
 486     .size  = sizeof(void*),
 487 };
 488
 489 /* --- mac address --- */
 490
 491 /*
 492  * accepted syntax versions:
 493  *   01:02:03:04:05:06
 494  *   01-02-03-04-05-06
 495  */
 496 static int parse_mac(DeviceState *dev, Property *prop, const char *str)
 497 {
 498     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 499     int i, pos;
 500     char *p;
 501
 502     for (i = 0, pos = 0; i < 6; i++, pos += 3) {
 503         if (!qemu_isxdigit(str[pos]))
 504             return -EINVAL;
 505         if (!qemu_isxdigit(str[pos+1]))
 506             return -EINVAL;
 507         if (i == 5) {
 508             if (str[pos+2] != '\0')
 509                 return -EINVAL;
 510         } else {
 511             if (str[pos+2] != ':' && str[pos+2] != '-')
 512                 return -EINVAL;
 513         }
 514         mac->a[i] = strtol(str+pos, &p, 16);
 515     }
 516     return 0;
 517 }
 518
 519 static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
 520 {
 521     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 522
 523     return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
 524                     mac->a[0], mac->a[1], mac->a[2],
 525                     mac->a[3], mac->a[4], mac->a[5]);
 526 }
 527
 528 PropertyInfo qdev_prop_macaddr = {
 529     .name  = "macaddr",
 530     .type  = PROP_TYPE_MACADDR,
 531     .size  = sizeof(MACAddr),
 532     .parse = parse_mac,
 533     .print = print_mac,
 534 };
 535
 536 /* --- pci address --- */
 537
 538 /*
 539  * bus-local address, i.e. "$slot" or "$slot.$fn"
 540  */
 541 static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str)
 542 {
 543     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 544     unsigned int slot, fn, n;
 545
 546     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
 547         fn = 0;
 548         if (sscanf(str, "%x%n", &slot, &n) != 1) {
 549             return -EINVAL;
 550         }
 551     }
 552     if (str[n] != '\0')
 553         return -EINVAL;
 554     if (fn > 7)
 555         return -EINVAL;
 556     if (slot > 31)
 557         return -EINVAL;
 558     *ptr = slot << 3 | fn;
 559     return 0;
 560 }
 561
 562 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 563 {
 564     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 565
 566     if (*ptr == -1) {
 567         return snprintf(dest, len, "<unset>");
 568     } else {
 569         return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
 570     }
 571 }
 572
 573 PropertyInfo qdev_prop_pci_devfn = {
 574     .name  = "pci-devfn",
 575     .type  = PROP_TYPE_UINT32,
 576     .size  = sizeof(uint32_t),
 577     .parse = parse_pci_devfn,
 578     .print = print_pci_devfn,
 579 };
 580
 581 /* --- public helpers --- */
 582
 583 static Property *qdev_prop_walk(Property *props, const char *name)
 584 {
 585     if (!props)
 586         return NULL;
 587     while (props->name) {
 588         if (strcmp(props->name, name) == 0)
 589             return props;
 590         props++;
 591     }
 592     return NULL;
 593 }
 594
 595 static Property *qdev_prop_find(DeviceState *dev, const char *name)
 596 {
 597     Property *prop;
 598
 599     /* device properties */
 600     prop = qdev_prop_walk(dev->info->props, name);
 601     if (prop)
 602         return prop;
 603
 604     /* bus properties */
 605     prop = qdev_prop_walk(dev->parent_bus->info->props, name);
 606     if (prop)
 607         return prop;
 608
 609     return NULL;
 610 }
 611
 612 int qdev_prop_exists(DeviceState *dev, const char *name)
 613 {
 614     return qdev_prop_find(dev, name) ? true : false;
 615 }
 616
 617 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
 618 {
 619     Property *prop;
 620     int ret;
 621
 622     prop = qdev_prop_find(dev, name);
 623     /*
 624      * TODO Properties without a parse method are just for dirty
 625      * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
 626      * marked for removal.  The test !prop->info->parse should be
 627      * removed along with it.
 628      */
 629     if (!prop || !prop->info->parse) {
 630         qerror_report(QERR_PROPERTY_NOT_FOUND, dev->info->name, name);
 631         return -1;
 632     }
 633     ret = prop->info->parse(dev, prop, value);
 634     if (ret < 0) {
 635         switch (ret) {
 636         case -EEXIST:
 637             qerror_report(QERR_PROPERTY_VALUE_IN_USE,
 638                           dev->info->name, name, value);
 639             break;
 640         default:
 641         case -EINVAL:
 642             qerror_report(QERR_PROPERTY_VALUE_BAD,
 643                           dev->info->name, name, value);
 644             break;
 645         case -ENOENT:
 646             qerror_report(QERR_PROPERTY_VALUE_NOT_FOUND,
 647                           dev->info->name, name, value);
 648             break;
 649         }
 650         return -1;
 651     }
 652     return 0;
 653 }
 654
 655 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
 656 {
 657     Property *prop;
 658
 659     prop = qdev_prop_find(dev, name);
 660     if (!prop) {
 661         fprintf(stderr, "%s: property \"%s.%s\" not found\n",
 662                 __FUNCTION__, dev->info->name, name);
 663         abort();
 664     }
 665     if (prop->info->type != type) {
 666         fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
 667                 __FUNCTION__, dev->info->name, name);
 668         abort();
 669     }
 670     qdev_prop_cpy(dev, prop, src);
 671 }
 672
 673 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
 674 {
 675     qdev_prop_set(dev, name, &value, PROP_TYPE_BIT);
 676 }
 677
 678 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
 679 {
 680     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
 681 }
 682
 683 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 684 {
 685     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
 686 }
 687
 688 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 689 {
 690     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
 691 }
 692
 693 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
 694 {
 695     qdev_prop_set(dev, name, &value, PROP_TYPE_INT32);
 696 }
 697
 698 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
 699 {
 700     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
 701 }
 702
 703 void qdev_prop_set_string(DeviceState *dev, const char *name, char *value)
 704 {
 705     qdev_prop_set(dev, name, &value, PROP_TYPE_STRING);
 706 }
 707
 708 int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value)
 709 {
 710     int res;
 711
 712     res = bdrv_attach_dev(value, dev);
 713     if (res < 0) {
 714         error_report("Can't attach drive %s to %s.%s: %s",
 715                      bdrv_get_device_name(value),
 716                      dev->id ? dev->id : dev->info->name,
 717                      name, strerror(-res));
 718         return -1;
 719     }
 720     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 721     return 0;
 722 }
 723
 724 void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value)
 725 {
 726     if (qdev_prop_set_drive(dev, name, value) < 0) {
 727         exit(1);
 728     }
 729 }
 730 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
 731 {
 732     qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
 733 }
 734
 735 void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value)
 736 {
 737     qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV);
 738 }
 739
 740 void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value)
 741 {
 742     qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN);
 743 }
 744
 745 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
 746 {
 747     qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR);
 748 }
 749
 750 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 751 {
 752     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
 753 }
 754
 755 void qdev_prop_set_defaults(DeviceState *dev, Property *props)
 756 {
 757     if (!props)
 758         return;
 759     while (props->name) {
 760         if (props->defval) {
 761             qdev_prop_cpy(dev, props, props->defval);
 762         }
 763         props++;
 764     }
 765 }
 766
 767 static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
 768
 769 static void qdev_prop_register_global(GlobalProperty *prop)
 770 {
 771     QTAILQ_INSERT_TAIL(&global_props, prop, next);
 772 }
 773
 774 void qdev_prop_register_global_list(GlobalProperty *props)
 775 {
 776     int i;
 777
 778     for (i = 0; props[i].driver != NULL; i++) {
 779         qdev_prop_register_global(props+i);
 780     }
 781 }
 782
 783 void qdev_prop_set_globals(DeviceState *dev)
 784 {
 785     GlobalProperty *prop;
 786
 787     QTAILQ_FOREACH(prop, &global_props, next) {
 788         if (strcmp(dev->info->name, prop->driver) != 0 &&
 789             strcmp(dev->info->bus_info->name, prop->driver) != 0) {
 790             continue;
 791         }
 792         if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
 793             exit(1);
 794         }
 795     }
 796 }
 797
 798 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 799 {
 800     GlobalProperty *g;
 801
 802     g = g_malloc0(sizeof(*g));
 803     g->driver   = qemu_opt_get(opts, "driver");
 804     g->property = qemu_opt_get(opts, "property");
 805     g->value    = qemu_opt_get(opts, "value");
 806     qdev_prop_register_global(g);
 807     return 0;
 808 }
 809
 810 void qemu_add_globals(void)
 811 {
 812     qemu_opts_foreach(qemu_find_opts("global"), qdev_add_one_global, NULL, 0);
 813 }