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 int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
 317 {
 318     DriveInfo **ptr = qdev_get_prop_ptr(dev, prop);
 319     return snprintf(dest, len, "%s", (*ptr) ? (*ptr)->id : "<null>");
 320 }
 321
 322 PropertyInfo qdev_prop_drive = {
 323     .name  = "drive",
 324     .type  = PROP_TYPE_DRIVE,
 325     .size  = sizeof(DriveInfo*),
 326     .parse = parse_drive,
 327     .print = print_drive,
 328 };
 329
 330 /* --- character device --- */
 331
 332 static int parse_chr(DeviceState *dev, Property *prop, const char *str)
 333 {
 334     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 335
 336     *ptr = qemu_chr_find(str);
 337     if (*ptr == NULL)
 338         return -ENOENT;
 339     return 0;
 340 }
 341
 342 static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
 343 {
 344     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 345
 346     if (*ptr && (*ptr)->label) {
 347         return snprintf(dest, len, "%s", (*ptr)->label);
 348     } else {
 349         return snprintf(dest, len, "<null>");
 350     }
 351 }
 352
 353 PropertyInfo qdev_prop_chr = {
 354     .name  = "chr",
 355     .type  = PROP_TYPE_CHR,
 356     .size  = sizeof(CharDriverState*),
 357     .parse = parse_chr,
 358     .print = print_chr,
 359 };
 360
 361 /* --- netdev device --- */
 362
 363 static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
 364 {
 365     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 366
 367     *ptr = qemu_find_netdev(str);
 368     if (*ptr == NULL)
 369         return -ENOENT;
 370     if ((*ptr)->peer) {
 371         return -EEXIST;
 372     }
 373     return 0;
 374 }
 375
 376 static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
 377 {
 378     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 379
 380     if (*ptr && (*ptr)->name) {
 381         return snprintf(dest, len, "%s", (*ptr)->name);
 382     } else {
 383         return snprintf(dest, len, "<null>");
 384     }
 385 }
 386
 387 PropertyInfo qdev_prop_netdev = {
 388     .name  = "netdev",
 389     .type  = PROP_TYPE_NETDEV,
 390     .size  = sizeof(VLANClientState*),
 391     .parse = parse_netdev,
 392     .print = print_netdev,
 393 };
 394
 395 /* --- vlan --- */
 396
 397 static int parse_vlan(DeviceState *dev, Property *prop, const char *str)
 398 {
 399     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 400     int id;
 401
 402     if (sscanf(str, "%d", &id) != 1)
 403         return -EINVAL;
 404     *ptr = qemu_find_vlan(id, 1);
 405     if (*ptr == NULL)
 406         return -ENOENT;
 407     return 0;
 408 }
 409
 410 static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
 411 {
 412     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 413
 414     if (*ptr) {
 415         return snprintf(dest, len, "%d", (*ptr)->id);
 416     } else {
 417         return snprintf(dest, len, "<null>");
 418     }
 419 }
 420
 421 PropertyInfo qdev_prop_vlan = {
 422     .name  = "vlan",
 423     .type  = PROP_TYPE_VLAN,
 424     .size  = sizeof(VLANClientState*),
 425     .parse = parse_vlan,
 426     .print = print_vlan,
 427 };
 428
 429 /* --- pointer --- */
 430
 431 /* Not a proper property, just for dirty hacks.  TODO Remove it!  */
 432 PropertyInfo qdev_prop_ptr = {
 433     .name  = "ptr",
 434     .type  = PROP_TYPE_PTR,
 435     .size  = sizeof(void*),
 436 };
 437
 438 /* --- mac address --- */
 439
 440 /*
 441  * accepted syntax versions:
 442  *   01:02:03:04:05:06
 443  *   01-02-03-04-05-06
 444  */
 445 static int parse_mac(DeviceState *dev, Property *prop, const char *str)
 446 {
 447     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 448     int i, pos;
 449     char *p;
 450
 451     for (i = 0, pos = 0; i < 6; i++, pos += 3) {
 452         if (!qemu_isxdigit(str[pos]))
 453             return -EINVAL;
 454         if (!qemu_isxdigit(str[pos+1]))
 455             return -EINVAL;
 456         if (i == 5) {
 457             if (str[pos+2] != '\0')
 458                 return -EINVAL;
 459         } else {
 460             if (str[pos+2] != ':' && str[pos+2] != '-')
 461                 return -EINVAL;
 462         }
 463         mac->a[i] = strtol(str+pos, &p, 16);
 464     }
 465     return 0;
 466 }
 467
 468 static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
 469 {
 470     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 471
 472     return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
 473                     mac->a[0], mac->a[1], mac->a[2],
 474                     mac->a[3], mac->a[4], mac->a[5]);
 475 }
 476
 477 PropertyInfo qdev_prop_macaddr = {
 478     .name  = "macaddr",
 479     .type  = PROP_TYPE_MACADDR,
 480     .size  = sizeof(MACAddr),
 481     .parse = parse_mac,
 482     .print = print_mac,
 483 };
 484
 485 /* --- pci address --- */
 486
 487 /*
 488  * bus-local address, i.e. "$slot" or "$slot.$fn"
 489  */
 490 static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str)
 491 {
 492     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 493     unsigned int slot, fn, n;
 494
 495     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
 496         fn = 0;
 497         if (sscanf(str, "%x%n", &slot, &n) != 1) {
 498             return -EINVAL;
 499         }
 500     }
 501     if (str[n] != '\0')
 502         return -EINVAL;
 503     if (fn > 7)
 504         return -EINVAL;
 505     *ptr = slot << 3 | fn;
 506     return 0;
 507 }
 508
 509 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 510 {
 511     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 512
 513     if (*ptr == -1) {
 514         return snprintf(dest, len, "<unset>");
 515     } else {
 516         return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
 517     }
 518 }
 519
 520 PropertyInfo qdev_prop_pci_devfn = {
 521     .name  = "pci-devfn",
 522     .type  = PROP_TYPE_UINT32,
 523     .size  = sizeof(uint32_t),
 524     .parse = parse_pci_devfn,
 525     .print = print_pci_devfn,
 526 };
 527
 528 /* --- public helpers --- */
 529
 530 static Property *qdev_prop_walk(Property *props, const char *name)
 531 {
 532     if (!props)
 533         return NULL;
 534     while (props->name) {
 535         if (strcmp(props->name, name) == 0)
 536             return props;
 537         props++;
 538     }
 539     return NULL;
 540 }
 541
 542 static Property *qdev_prop_find(DeviceState *dev, const char *name)
 543 {
 544     Property *prop;
 545
 546     /* device properties */
 547     prop = qdev_prop_walk(dev->info->props, name);
 548     if (prop)
 549         return prop;
 550
 551     /* bus properties */
 552     prop = qdev_prop_walk(dev->parent_bus->info->props, name);
 553     if (prop)
 554         return prop;
 555
 556     return NULL;
 557 }
 558
 559 int qdev_prop_exists(DeviceState *dev, const char *name)
 560 {
 561     return qdev_prop_find(dev, name) ? true : false;
 562 }
 563
 564 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
 565 {
 566     Property *prop;
 567     int ret;
 568
 569     prop = qdev_prop_find(dev, name);
 570     /*
 571      * TODO Properties without a parse method are just for dirty
 572      * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
 573      * marked for removal.  The test !prop->info->parse should be
 574      * removed along with it.
 575      */
 576     if (!prop || !prop->info->parse) {
 577         qerror_report(QERR_PROPERTY_NOT_FOUND, dev->info->name, name);
 578         return -1;
 579     }
 580     ret = prop->info->parse(dev, prop, value);
 581     if (ret < 0) {
 582         switch (ret) {
 583         case -EEXIST:
 584             qerror_report(QERR_PROPERTY_VALUE_IN_USE,
 585                           dev->info->name, name, value);
 586             break;
 587         default:
 588         case -EINVAL:
 589             qerror_report(QERR_PROPERTY_VALUE_BAD,
 590                           dev->info->name, name, value);
 591             break;
 592         case -ENOENT:
 593             qerror_report(QERR_PROPERTY_VALUE_NOT_FOUND,
 594                           dev->info->name, name, value);
 595             break;
 596         }
 597         return -1;
 598     }
 599     return 0;
 600 }
 601
 602 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
 603 {
 604     Property *prop;
 605
 606     prop = qdev_prop_find(dev, name);
 607     if (!prop) {
 608         fprintf(stderr, "%s: property \"%s.%s\" not found\n",
 609                 __FUNCTION__, dev->info->name, name);
 610         abort();
 611     }
 612     if (prop->info->type != type) {
 613         fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
 614                 __FUNCTION__, dev->info->name, name);
 615         abort();
 616     }
 617     qdev_prop_cpy(dev, prop, src);
 618 }
 619
 620 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
 621 {
 622     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
 623 }
 624
 625 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 626 {
 627     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
 628 }
 629
 630 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 631 {
 632     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
 633 }
 634
 635 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
 636 {
 637     qdev_prop_set(dev, name, &value, PROP_TYPE_INT32);
 638 }
 639
 640 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
 641 {
 642     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
 643 }
 644
 645 void qdev_prop_set_string(DeviceState *dev, const char *name, char *value)
 646 {
 647     qdev_prop_set(dev, name, &value, PROP_TYPE_STRING);
 648 }
 649
 650 void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value)
 651 {
 652     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 653 }
 654
 655 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
 656 {
 657     qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
 658 }
 659
 660 void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value)
 661 {
 662     qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV);
 663 }
 664
 665 void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value)
 666 {
 667     qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN);
 668 }
 669
 670 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
 671 {
 672     qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR);
 673 }
 674
 675 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 676 {
 677     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
 678 }
 679
 680 void qdev_prop_set_defaults(DeviceState *dev, Property *props)
 681 {
 682     if (!props)
 683         return;
 684     while (props->name) {
 685         if (props->defval) {
 686             qdev_prop_cpy(dev, props, props->defval);
 687         }
 688         props++;
 689     }
 690 }
 691
 692 static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
 693
 694 static void qdev_prop_register_global(GlobalProperty *prop)
 695 {
 696     QTAILQ_INSERT_TAIL(&global_props, prop, next);
 697 }
 698
 699 void qdev_prop_register_global_list(GlobalProperty *props)
 700 {
 701     int i;
 702
 703     for (i = 0; props[i].driver != NULL; i++) {
 704         qdev_prop_register_global(props+i);
 705     }
 706 }
 707
 708 void qdev_prop_set_globals(DeviceState *dev)
 709 {
 710     GlobalProperty *prop;
 711
 712     QTAILQ_FOREACH(prop, &global_props, next) {
 713         if (strcmp(dev->info->name, prop->driver) != 0 &&
 714             strcmp(dev->info->bus_info->name, prop->driver) != 0) {
 715             continue;
 716         }
 717         if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
 718             exit(1);
 719         }
 720     }
 721 }
 722
 723 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 724 {
 725     GlobalProperty *g;
 726
 727     g = qemu_mallocz(sizeof(*g));
 728     g->driver   = qemu_opt_get(opts, "driver");
 729     g->property = qemu_opt_get(opts, "property");
 730     g->value    = qemu_opt_get(opts, "value");
 731     qdev_prop_register_global(g);
 732     return 0;
 733 }
 734
 735 void qemu_add_globals(void)
 736 {
 737     qemu_opts_foreach(&qemu_global_opts, qdev_add_one_global, NULL, 0);
 738 }