hw/qdev-properties.c

   1 #include "net.h"
   2 #include "qdev.h"
   3 #include "qerror.h"
   4
   5 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
   6 {
   7     void *ptr = dev;
   8     ptr += prop->offset;
   9     return ptr;
  10 }
  11
  12 static uint32_t qdev_get_prop_mask(Property *prop)
  13 {
  14     assert(prop->info->type == PROP_TYPE_BIT);
  15     return 0x1 << prop->bitnr;
  16 }
  17
  18 static void bit_prop_set(DeviceState *dev, Property *props, bool val)
  19 {
  20     uint32_t *p = qdev_get_prop_ptr(dev, props);
  21     uint32_t mask = qdev_get_prop_mask(props);
  22     if (val)
  23         *p |= mask;
  24     else
  25         *p &= ~mask;
  26 }
  27
  28 static void qdev_prop_cpy(DeviceState *dev, Property *props, void *src)
  29 {
  30     if (props->info->type == PROP_TYPE_BIT) {
  31         bool *defval = src;
  32         bit_prop_set(dev, props, *defval);
  33     } else {
  34         char *dst = qdev_get_prop_ptr(dev, props);
  35         memcpy(dst, src, props->info->size);
  36     }
  37 }
  38
  39 /* Bit */
  40 static int parse_bit(DeviceState *dev, Property *prop, const char *str)
  41 {
  42     if (!strncasecmp(str, "on", 2))
  43         bit_prop_set(dev, prop, true);
  44     else if (!strncasecmp(str, "off", 3))
  45         bit_prop_set(dev, prop, false);
  46     else
  47         return -EINVAL;
  48     return 0;
  49 }
  50
  51 static int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len)
  52 {
  53     uint8_t *p = qdev_get_prop_ptr(dev, prop);
  54     return snprintf(dest, len, (*p & qdev_get_prop_mask(prop)) ? "on" : "off");
  55 }
  56
  57 PropertyInfo qdev_prop_bit = {
  58     .name  = "on/off",
  59     .type  = PROP_TYPE_BIT,
  60     .size  = sizeof(uint32_t),
  61     .parse = parse_bit,
  62     .print = print_bit,
  63 };
  64
  65 /* --- 8bit integer --- */
  66
  67 static int parse_uint8(DeviceState *dev, Property *prop, const char *str)
  68 {
  69     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
  70     char *end;
  71
  72     /* accept both hex and decimal */
  73     *ptr = strtoul(str, &end, 0);
  74     if ((*end != '\0') || (end == str)) {
  75         return -EINVAL;
  76     }
  77
  78     return 0;
  79 }
  80
  81 static int print_uint8(DeviceState *dev, Property *prop, char *dest, size_t len)
  82 {
  83     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
  84     return snprintf(dest, len, "%" PRIu8, *ptr);
  85 }
  86
  87 PropertyInfo qdev_prop_uint8 = {
  88     .name  = "uint8",
  89     .type  = PROP_TYPE_UINT8,
  90     .size  = sizeof(uint8_t),
  91     .parse = parse_uint8,
  92     .print = print_uint8,
  93 };
  94
  95 /* --- 16bit integer --- */
  96
  97 static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
  98 {
  99     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 100     char *end;
 101
 102     /* accept both hex and decimal */
 103     *ptr = strtoul(str, &end, 0);
 104     if ((*end != '\0') || (end == str)) {
 105         return -EINVAL;
 106     }
 107
 108     return 0;
 109 }
 110
 111 static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
 112 {
 113     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 114     return snprintf(dest, len, "%" PRIu16, *ptr);
 115 }
 116
 117 PropertyInfo qdev_prop_uint16 = {
 118     .name  = "uint16",
 119     .type  = PROP_TYPE_UINT16,
 120     .size  = sizeof(uint16_t),
 121     .parse = parse_uint16,
 122     .print = print_uint16,
 123 };
 124
 125 /* --- 32bit integer --- */
 126
 127 static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
 128 {
 129     uint32_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_uint32(DeviceState *dev, Property *prop, char *dest, size_t len)
 142 {
 143     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 144     return snprintf(dest, len, "%" PRIu32, *ptr);
 145 }
 146
 147 PropertyInfo qdev_prop_uint32 = {
 148     .name  = "uint32",
 149     .type  = PROP_TYPE_UINT32,
 150     .size  = sizeof(uint32_t),
 151     .parse = parse_uint32,
 152     .print = print_uint32,
 153 };
 154
 155 static int parse_int32(DeviceState *dev, Property *prop, const char *str)
 156 {
 157     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 158     char *end;
 159
 160     *ptr = strtol(str, &end, 10);
 161     if ((*end != '\0') || (end == str)) {
 162         return -EINVAL;
 163     }
 164
 165     return 0;
 166 }
 167
 168 static int print_int32(DeviceState *dev, Property *prop, char *dest, size_t len)
 169 {
 170     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 171     return snprintf(dest, len, "%" PRId32, *ptr);
 172 }
 173
 174 PropertyInfo qdev_prop_int32 = {
 175     .name  = "int32",
 176     .type  = PROP_TYPE_INT32,
 177     .size  = sizeof(int32_t),
 178     .parse = parse_int32,
 179     .print = print_int32,
 180 };
 181
 182 /* --- 32bit hex value --- */
 183
 184 static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
 185 {
 186     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 187     char *end;
 188
 189     *ptr = strtoul(str, &end, 16);
 190     if ((*end != '\0') || (end == str)) {
 191         return -EINVAL;
 192     }
 193
 194     return 0;
 195 }
 196
 197 static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
 198 {
 199     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 200     return snprintf(dest, len, "0x%" PRIx32, *ptr);
 201 }
 202
 203 PropertyInfo qdev_prop_hex32 = {
 204     .name  = "hex32",
 205     .type  = PROP_TYPE_UINT32,
 206     .size  = sizeof(uint32_t),
 207     .parse = parse_hex32,
 208     .print = print_hex32,
 209 };
 210
 211 /* --- 64bit integer --- */
 212
 213 static int parse_uint64(DeviceState *dev, Property *prop, const char *str)
 214 {
 215     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 216     char *end;
 217
 218     /* accept both hex and decimal */
 219     *ptr = strtoull(str, &end, 0);
 220     if ((*end != '\0') || (end == str)) {
 221         return -EINVAL;
 222     }
 223
 224     return 0;
 225 }
 226
 227 static int print_uint64(DeviceState *dev, Property *prop, char *dest, size_t len)
 228 {
 229     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 230     return snprintf(dest, len, "%" PRIu64, *ptr);
 231 }
 232
 233 PropertyInfo qdev_prop_uint64 = {
 234     .name  = "uint64",
 235     .type  = PROP_TYPE_UINT64,
 236     .size  = sizeof(uint64_t),
 237     .parse = parse_uint64,
 238     .print = print_uint64,
 239 };
 240
 241 /* --- 64bit hex value --- */
 242
 243 static int parse_hex64(DeviceState *dev, Property *prop, const char *str)
 244 {
 245     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 246     char *end;
 247
 248     *ptr = strtoull(str, &end, 16);
 249     if ((*end != '\0') || (end == str)) {
 250         return -EINVAL;
 251     }
 252
 253     return 0;
 254 }
 255
 256 static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len)
 257 {
 258     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 259     return snprintf(dest, len, "0x%" PRIx64, *ptr);
 260 }
 261
 262 PropertyInfo qdev_prop_hex64 = {
 263     .name  = "hex64",
 264     .type  = PROP_TYPE_UINT64,
 265     .size  = sizeof(uint64_t),
 266     .parse = parse_hex64,
 267     .print = print_hex64,
 268 };
 269
 270 /* --- string --- */
 271
 272 static int parse_string(DeviceState *dev, Property *prop, const char *str)
 273 {
 274     char **ptr = qdev_get_prop_ptr(dev, prop);
 275
 276     if (*ptr)
 277         qemu_free(*ptr);
 278     *ptr = qemu_strdup(str);
 279     return 0;
 280 }
 281
 282 static void free_string(DeviceState *dev, Property *prop)
 283 {
 284     qemu_free(*(char **)qdev_get_prop_ptr(dev, prop));
 285 }
 286
 287 static int print_string(DeviceState *dev, Property *prop, char *dest, size_t len)
 288 {
 289     char **ptr = qdev_get_prop_ptr(dev, prop);
 290     if (!*ptr)
 291         return snprintf(dest, len, "<null>");
 292     return snprintf(dest, len, "\"%s\"", *ptr);
 293 }
 294
 295 PropertyInfo qdev_prop_string = {
 296     .name  = "string",
 297     .type  = PROP_TYPE_STRING,
 298     .size  = sizeof(char*),
 299     .parse = parse_string,
 300     .print = print_string,
 301     .free  = free_string,
 302 };
 303
 304 /* --- drive --- */
 305
 306 static int parse_drive(DeviceState *dev, Property *prop, const char *str)
 307 {
 308     DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
 309
 310     *ptr = drive_get_by_id(str);
 311     if (*ptr == NULL)
 312         return -ENOENT;
 313     return 0;
 314 }
 315
 316 static void free_drive(DeviceState *dev, Property *prop)
 317 {
 318     DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
 319
 320     if (*ptr) {
 321         blockdev_auto_del((*ptr)->bdrv);
 322     }
 323 }
 324
 325 static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
 326 {
 327     DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
 328     return snprintf(dest, len, "%s", (*ptr) ? (*ptr)->id : "<null>");
 329 }
 330
 331 PropertyInfo qdev_prop_drive = {
 332     .name  = "drive",
 333     .type  = PROP_TYPE_DRIVE,
 334     .size  = sizeof(DriveInfo*),
 335     .parse = parse_drive,
 336     .print = print_drive,
 337     .free  = free_drive,
 338 };
 339
 340 /* --- character device --- */
 341
 342 static int parse_chr(DeviceState *dev, Property *prop, const char *str)
 343 {
 344     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 345
 346     *ptr = qemu_chr_find(str);
 347     if (*ptr == NULL)
 348         return -ENOENT;
 349     return 0;
 350 }
 351
 352 static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
 353 {
 354     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 355
 356     if (*ptr && (*ptr)->label) {
 357         return snprintf(dest, len, "%s", (*ptr)->label);
 358     } else {
 359         return snprintf(dest, len, "<null>");
 360     }
 361 }
 362
 363 PropertyInfo qdev_prop_chr = {
 364     .name  = "chr",
 365     .type  = PROP_TYPE_CHR,
 366     .size  = sizeof(CharDriverState*),
 367     .parse = parse_chr,
 368     .print = print_chr,
 369 };
 370
 371 /* --- netdev device --- */
 372
 373 static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
 374 {
 375     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 376
 377     *ptr = qemu_find_netdev(str);
 378     if (*ptr == NULL)
 379         return -ENOENT;
 380     if ((*ptr)->peer) {
 381         return -EEXIST;
 382     }
 383     return 0;
 384 }
 385
 386 static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
 387 {
 388     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 389
 390     if (*ptr && (*ptr)->name) {
 391         return snprintf(dest, len, "%s", (*ptr)->name);
 392     } else {
 393         return snprintf(dest, len, "<null>");
 394     }
 395 }
 396
 397 PropertyInfo qdev_prop_netdev = {
 398     .name  = "netdev",
 399     .type  = PROP_TYPE_NETDEV,
 400     .size  = sizeof(VLANClientState*),
 401     .parse = parse_netdev,
 402     .print = print_netdev,
 403 };
 404
 405 /* --- vlan --- */
 406
 407 static int parse_vlan(DeviceState *dev, Property *prop, const char *str)
 408 {
 409     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 410     int id;
 411
 412     if (sscanf(str, "%d", &id) != 1)
 413         return -EINVAL;
 414     *ptr = qemu_find_vlan(id, 1);
 415     if (*ptr == NULL)
 416         return -ENOENT;
 417     return 0;
 418 }
 419
 420 static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
 421 {
 422     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 423
 424     if (*ptr) {
 425         return snprintf(dest, len, "%d", (*ptr)->id);
 426     } else {
 427         return snprintf(dest, len, "<null>");
 428     }
 429 }
 430
 431 PropertyInfo qdev_prop_vlan = {
 432     .name  = "vlan",
 433     .type  = PROP_TYPE_VLAN,
 434     .size  = sizeof(VLANClientState*),
 435     .parse = parse_vlan,
 436     .print = print_vlan,
 437 };
 438
 439 /* --- pointer --- */
 440
 441 /* Not a proper property, just for dirty hacks.  TODO Remove it!  */
 442 PropertyInfo qdev_prop_ptr = {
 443     .name  = "ptr",
 444     .type  = PROP_TYPE_PTR,
 445     .size  = sizeof(void*),
 446 };
 447
 448 /* --- mac address --- */
 449
 450 /*
 451  * accepted syntax versions:
 452  *   01:02:03:04:05:06
 453  *   01-02-03-04-05-06
 454  */
 455 static int parse_mac(DeviceState *dev, Property *prop, const char *str)
 456 {
 457     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 458     int i, pos;
 459     char *p;
 460
 461     for (i = 0, pos = 0; i < 6; i++, pos += 3) {
 462         if (!qemu_isxdigit(str[pos]))
 463             return -EINVAL;
 464         if (!qemu_isxdigit(str[pos+1]))
 465             return -EINVAL;
 466         if (i == 5) {
 467             if (str[pos+2] != '\0')
 468                 return -EINVAL;
 469         } else {
 470             if (str[pos+2] != ':' && str[pos+2] != '-')
 471                 return -EINVAL;
 472         }
 473         mac->a[i] = strtol(str+pos, &p, 16);
 474     }
 475     return 0;
 476 }
 477
 478 static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
 479 {
 480     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 481
 482     return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
 483                     mac->a[0], mac->a[1], mac->a[2],
 484                     mac->a[3], mac->a[4], mac->a[5]);
 485 }
 486
 487 PropertyInfo qdev_prop_macaddr = {
 488     .name  = "macaddr",
 489     .type  = PROP_TYPE_MACADDR,
 490     .size  = sizeof(MACAddr),
 491     .parse = parse_mac,
 492     .print = print_mac,
 493 };
 494
 495 /* --- pci address --- */
 496
 497 /*
 498  * bus-local address, i.e. "$slot" or "$slot.$fn"
 499  */
 500 static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str)
 501 {
 502     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 503     unsigned int slot, fn, n;
 504
 505     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
 506         fn = 0;
 507         if (sscanf(str, "%x%n", &slot, &n) != 1) {
 508             return -EINVAL;
 509         }
 510     }
 511     if (str[n] != '\0')
 512         return -EINVAL;
 513     if (fn > 7)
 514         return -EINVAL;
 515     *ptr = slot << 3 | fn;
 516     return 0;
 517 }
 518
 519 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 520 {
 521     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 522
 523     if (*ptr == -1) {
 524         return snprintf(dest, len, "<unset>");
 525     } else {
 526         return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
 527     }
 528 }
 529
 530 PropertyInfo qdev_prop_pci_devfn = {
 531     .name  = "pci-devfn",
 532     .type  = PROP_TYPE_UINT32,
 533     .size  = sizeof(uint32_t),
 534     .parse = parse_pci_devfn,
 535     .print = print_pci_devfn,
 536 };
 537
 538 /* --- public helpers --- */
 539
 540 static Property *qdev_prop_walk(Property *props, const char *name)
 541 {
 542     if (!props)
 543         return NULL;
 544     while (props->name) {
 545         if (strcmp(props->name, name) == 0)
 546             return props;
 547         props++;
 548     }
 549     return NULL;
 550 }
 551
 552 static Property *qdev_prop_find(DeviceState *dev, const char *name)
 553 {
 554     Property *prop;
 555
 556     /* device properties */
 557     prop = qdev_prop_walk(dev->info->props, name);
 558     if (prop)
 559         return prop;
 560
 561     /* bus properties */
 562     prop = qdev_prop_walk(dev->parent_bus->info->props, name);
 563     if (prop)
 564         return prop;
 565
 566     return NULL;
 567 }
 568
 569 int qdev_prop_exists(DeviceState *dev, const char *name)
 570 {
 571     return qdev_prop_find(dev, name) ? true : false;
 572 }
 573
 574 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
 575 {
 576     Property *prop;
 577     int ret;
 578
 579     prop = qdev_prop_find(dev, name);
 580     /*
 581      * TODO Properties without a parse method are just for dirty
 582      * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
 583      * marked for removal.  The test !prop->info->parse should be
 584      * removed along with it.
 585      */
 586     if (!prop || !prop->info->parse) {
 587         qerror_report(QERR_PROPERTY_NOT_FOUND, dev->info->name, name);
 588         return -1;
 589     }
 590     ret = prop->info->parse(dev, prop, value);
 591     if (ret < 0) {
 592         switch (ret) {
 593         case -EEXIST:
 594             qerror_report(QERR_PROPERTY_VALUE_IN_USE,
 595                           dev->info->name, name, value);
 596             break;
 597         default:
 598         case -EINVAL:
 599             qerror_report(QERR_PROPERTY_VALUE_BAD,
 600                           dev->info->name, name, value);
 601             break;
 602         case -ENOENT:
 603             qerror_report(QERR_PROPERTY_VALUE_NOT_FOUND,
 604                           dev->info->name, name, value);
 605             break;
 606         }
 607         return -1;
 608     }
 609     return 0;
 610 }
 611
 612 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
 613 {
 614     Property *prop;
 615
 616     prop = qdev_prop_find(dev, name);
 617     if (!prop) {
 618         fprintf(stderr, "%s: property \"%s.%s\" not found\n",
 619                 __FUNCTION__, dev->info->name, name);
 620         abort();
 621     }
 622     if (prop->info->type != type) {
 623         fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
 624                 __FUNCTION__, dev->info->name, name);
 625         abort();
 626     }
 627     qdev_prop_cpy(dev, prop, src);
 628 }
 629
 630 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
 631 {
 632     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
 633 }
 634
 635 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 636 {
 637     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
 638 }
 639
 640 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 641 {
 642     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
 643 }
 644
 645 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
 646 {
 647     qdev_prop_set(dev, name, &value, PROP_TYPE_INT32);
 648 }
 649
 650 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
 651 {
 652     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
 653 }
 654
 655 void qdev_prop_set_string(DeviceState *dev, const char *name, char *value)
 656 {
 657     qdev_prop_set(dev, name, &value, PROP_TYPE_STRING);
 658 }
 659
 660 void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value)
 661 {
 662     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 663 }
 664
 665 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
 666 {
 667     qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
 668 }
 669
 670 void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value)
 671 {
 672     qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV);
 673 }
 674
 675 void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value)
 676 {
 677     qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN);
 678 }
 679
 680 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
 681 {
 682     qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR);
 683 }
 684
 685 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 686 {
 687     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
 688 }
 689
 690 void qdev_prop_set_defaults(DeviceState *dev, Property *props)
 691 {
 692     if (!props)
 693         return;
 694     while (props->name) {
 695         if (props->defval) {
 696             qdev_prop_cpy(dev, props, props->defval);
 697         }
 698         props++;
 699     }
 700 }
 701
 702 static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
 703
 704 static void qdev_prop_register_global(GlobalProperty *prop)
 705 {
 706     QTAILQ_INSERT_TAIL(&global_props, prop, next);
 707 }
 708
 709 void qdev_prop_register_global_list(GlobalProperty *props)
 710 {
 711     int i;
 712
 713     for (i = 0; props[i].driver != NULL; i++) {
 714         qdev_prop_register_global(props+i);
 715     }
 716 }
 717
 718 void qdev_prop_set_globals(DeviceState *dev)
 719 {
 720     GlobalProperty *prop;
 721
 722     QTAILQ_FOREACH(prop, &global_props, next) {
 723         if (strcmp(dev->info->name, prop->driver) != 0 &&
 724             strcmp(dev->info->bus_info->name, prop->driver) != 0) {
 725             continue;
 726         }
 727         if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
 728             exit(1);
 729         }
 730     }
 731 }
 732
 733 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 734 {
 735     GlobalProperty *g;
 736
 737     g = qemu_mallocz(sizeof(*g));
 738     g->driver   = qemu_opt_get(opts, "driver");
 739     g->property = qemu_opt_get(opts, "property");
 740     g->value    = qemu_opt_get(opts, "value");
 741     qdev_prop_register_global(g);
 742     return 0;
 743 }
 744
 745 void qemu_add_globals(void)
 746 {
 747     qemu_opts_foreach(&qemu_global_opts, qdev_add_one_global, NULL, 0);
 748 }