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     uint8_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     return 0;
 357 }
 358
 359 static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
 360 {
 361     CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
 362
 363     if (*ptr && (*ptr)->label) {
 364         return snprintf(dest, len, "%s", (*ptr)->label);
 365     } else {
 366         return snprintf(dest, len, "<null>");
 367     }
 368 }
 369
 370 PropertyInfo qdev_prop_chr = {
 371     .name  = "chr",
 372     .type  = PROP_TYPE_CHR,
 373     .size  = sizeof(CharDriverState*),
 374     .parse = parse_chr,
 375     .print = print_chr,
 376 };
 377
 378 /* --- netdev device --- */
 379
 380 static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
 381 {
 382     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 383
 384     *ptr = qemu_find_netdev(str);
 385     if (*ptr == NULL)
 386         return -ENOENT;
 387     if ((*ptr)->peer) {
 388         return -EEXIST;
 389     }
 390     return 0;
 391 }
 392
 393 static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
 394 {
 395     VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
 396
 397     if (*ptr && (*ptr)->name) {
 398         return snprintf(dest, len, "%s", (*ptr)->name);
 399     } else {
 400         return snprintf(dest, len, "<null>");
 401     }
 402 }
 403
 404 PropertyInfo qdev_prop_netdev = {
 405     .name  = "netdev",
 406     .type  = PROP_TYPE_NETDEV,
 407     .size  = sizeof(VLANClientState*),
 408     .parse = parse_netdev,
 409     .print = print_netdev,
 410 };
 411
 412 /* --- vlan --- */
 413
 414 static int parse_vlan(DeviceState *dev, Property *prop, const char *str)
 415 {
 416     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 417     int id;
 418
 419     if (sscanf(str, "%d", &id) != 1)
 420         return -EINVAL;
 421     *ptr = qemu_find_vlan(id, 1);
 422     if (*ptr == NULL)
 423         return -ENOENT;
 424     return 0;
 425 }
 426
 427 static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
 428 {
 429     VLANState **ptr = qdev_get_prop_ptr(dev, prop);
 430
 431     if (*ptr) {
 432         return snprintf(dest, len, "%d", (*ptr)->id);
 433     } else {
 434         return snprintf(dest, len, "<null>");
 435     }
 436 }
 437
 438 PropertyInfo qdev_prop_vlan = {
 439     .name  = "vlan",
 440     .type  = PROP_TYPE_VLAN,
 441     .size  = sizeof(VLANClientState*),
 442     .parse = parse_vlan,
 443     .print = print_vlan,
 444 };
 445
 446 /* --- pointer --- */
 447
 448 /* Not a proper property, just for dirty hacks.  TODO Remove it!  */
 449 PropertyInfo qdev_prop_ptr = {
 450     .name  = "ptr",
 451     .type  = PROP_TYPE_PTR,
 452     .size  = sizeof(void*),
 453 };
 454
 455 /* --- mac address --- */
 456
 457 /*
 458  * accepted syntax versions:
 459  *   01:02:03:04:05:06
 460  *   01-02-03-04-05-06
 461  */
 462 static int parse_mac(DeviceState *dev, Property *prop, const char *str)
 463 {
 464     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 465     int i, pos;
 466     char *p;
 467
 468     for (i = 0, pos = 0; i < 6; i++, pos += 3) {
 469         if (!qemu_isxdigit(str[pos]))
 470             return -EINVAL;
 471         if (!qemu_isxdigit(str[pos+1]))
 472             return -EINVAL;
 473         if (i == 5) {
 474             if (str[pos+2] != '\0')
 475                 return -EINVAL;
 476         } else {
 477             if (str[pos+2] != ':' && str[pos+2] != '-')
 478                 return -EINVAL;
 479         }
 480         mac->a[i] = strtol(str+pos, &p, 16);
 481     }
 482     return 0;
 483 }
 484
 485 static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
 486 {
 487     MACAddr *mac = qdev_get_prop_ptr(dev, prop);
 488
 489     return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
 490                     mac->a[0], mac->a[1], mac->a[2],
 491                     mac->a[3], mac->a[4], mac->a[5]);
 492 }
 493
 494 PropertyInfo qdev_prop_macaddr = {
 495     .name  = "macaddr",
 496     .type  = PROP_TYPE_MACADDR,
 497     .size  = sizeof(MACAddr),
 498     .parse = parse_mac,
 499     .print = print_mac,
 500 };
 501
 502 /* --- pci address --- */
 503
 504 /*
 505  * bus-local address, i.e. "$slot" or "$slot.$fn"
 506  */
 507 static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str)
 508 {
 509     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 510     unsigned int slot, fn, n;
 511
 512     if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) {
 513         fn = 0;
 514         if (sscanf(str, "%x%n", &slot, &n) != 1) {
 515             return -EINVAL;
 516         }
 517     }
 518     if (str[n] != '\0')
 519         return -EINVAL;
 520     if (fn > 7)
 521         return -EINVAL;
 522     *ptr = slot << 3 | fn;
 523     return 0;
 524 }
 525
 526 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len)
 527 {
 528     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 529
 530     if (*ptr == -1) {
 531         return snprintf(dest, len, "<unset>");
 532     } else {
 533         return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7);
 534     }
 535 }
 536
 537 PropertyInfo qdev_prop_pci_devfn = {
 538     .name  = "pci-devfn",
 539     .type  = PROP_TYPE_UINT32,
 540     .size  = sizeof(uint32_t),
 541     .parse = parse_pci_devfn,
 542     .print = print_pci_devfn,
 543 };
 544
 545 /* --- public helpers --- */
 546
 547 static Property *qdev_prop_walk(Property *props, const char *name)
 548 {
 549     if (!props)
 550         return NULL;
 551     while (props->name) {
 552         if (strcmp(props->name, name) == 0)
 553             return props;
 554         props++;
 555     }
 556     return NULL;
 557 }
 558
 559 static Property *qdev_prop_find(DeviceState *dev, const char *name)
 560 {
 561     Property *prop;
 562
 563     /* device properties */
 564     prop = qdev_prop_walk(dev->info->props, name);
 565     if (prop)
 566         return prop;
 567
 568     /* bus properties */
 569     prop = qdev_prop_walk(dev->parent_bus->info->props, name);
 570     if (prop)
 571         return prop;
 572
 573     return NULL;
 574 }
 575
 576 int qdev_prop_exists(DeviceState *dev, const char *name)
 577 {
 578     return qdev_prop_find(dev, name) ? true : false;
 579 }
 580
 581 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
 582 {
 583     Property *prop;
 584     int ret;
 585
 586     prop = qdev_prop_find(dev, name);
 587     /*
 588      * TODO Properties without a parse method are just for dirty
 589      * hacks.  qdev_prop_ptr is the only such PropertyInfo.  It's
 590      * marked for removal.  The test !prop->info->parse should be
 591      * removed along with it.
 592      */
 593     if (!prop || !prop->info->parse) {
 594         qerror_report(QERR_PROPERTY_NOT_FOUND, dev->info->name, name);
 595         return -1;
 596     }
 597     ret = prop->info->parse(dev, prop, value);
 598     if (ret < 0) {
 599         switch (ret) {
 600         case -EEXIST:
 601             qerror_report(QERR_PROPERTY_VALUE_IN_USE,
 602                           dev->info->name, name, value);
 603             break;
 604         default:
 605         case -EINVAL:
 606             qerror_report(QERR_PROPERTY_VALUE_BAD,
 607                           dev->info->name, name, value);
 608             break;
 609         case -ENOENT:
 610             qerror_report(QERR_PROPERTY_VALUE_NOT_FOUND,
 611                           dev->info->name, name, value);
 612             break;
 613         }
 614         return -1;
 615     }
 616     return 0;
 617 }
 618
 619 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
 620 {
 621     Property *prop;
 622
 623     prop = qdev_prop_find(dev, name);
 624     if (!prop) {
 625         fprintf(stderr, "%s: property \"%s.%s\" not found\n",
 626                 __FUNCTION__, dev->info->name, name);
 627         abort();
 628     }
 629     if (prop->info->type != type) {
 630         fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
 631                 __FUNCTION__, dev->info->name, name);
 632         abort();
 633     }
 634     qdev_prop_cpy(dev, prop, src);
 635 }
 636
 637 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value)
 638 {
 639     qdev_prop_set(dev, name, &value, PROP_TYPE_BIT);
 640 }
 641
 642 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
 643 {
 644     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
 645 }
 646
 647 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 648 {
 649     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
 650 }
 651
 652 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 653 {
 654     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
 655 }
 656
 657 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value)
 658 {
 659     qdev_prop_set(dev, name, &value, PROP_TYPE_INT32);
 660 }
 661
 662 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value)
 663 {
 664     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64);
 665 }
 666
 667 void qdev_prop_set_string(DeviceState *dev, const char *name, char *value)
 668 {
 669     qdev_prop_set(dev, name, &value, PROP_TYPE_STRING);
 670 }
 671
 672 int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value)
 673 {
 674     int res;
 675
 676     res = bdrv_attach(value, dev);
 677     if (res < 0) {
 678         error_report("Can't attach drive %s to %s.%s: %s",
 679                      bdrv_get_device_name(value),
 680                      dev->id ? dev->id : dev->info->name,
 681                      name, strerror(-res));
 682         return -1;
 683     }
 684     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 685     return 0;
 686 }
 687
 688 void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value)
 689 {
 690     if (qdev_prop_set_drive(dev, name, value) < 0) {
 691         exit(1);
 692     }
 693 }
 694 void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
 695 {
 696     qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
 697 }
 698
 699 void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value)
 700 {
 701     qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV);
 702 }
 703
 704 void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value)
 705 {
 706     qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN);
 707 }
 708
 709 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value)
 710 {
 711     qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR);
 712 }
 713
 714 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 715 {
 716     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
 717 }
 718
 719 void qdev_prop_set_defaults(DeviceState *dev, Property *props)
 720 {
 721     if (!props)
 722         return;
 723     while (props->name) {
 724         if (props->defval) {
 725             qdev_prop_cpy(dev, props, props->defval);
 726         }
 727         props++;
 728     }
 729 }
 730
 731 static QTAILQ_HEAD(, GlobalProperty) global_props = QTAILQ_HEAD_INITIALIZER(global_props);
 732
 733 static void qdev_prop_register_global(GlobalProperty *prop)
 734 {
 735     QTAILQ_INSERT_TAIL(&global_props, prop, next);
 736 }
 737
 738 void qdev_prop_register_global_list(GlobalProperty *props)
 739 {
 740     int i;
 741
 742     for (i = 0; props[i].driver != NULL; i++) {
 743         qdev_prop_register_global(props+i);
 744     }
 745 }
 746
 747 void qdev_prop_set_globals(DeviceState *dev)
 748 {
 749     GlobalProperty *prop;
 750
 751     QTAILQ_FOREACH(prop, &global_props, next) {
 752         if (strcmp(dev->info->name, prop->driver) != 0 &&
 753             strcmp(dev->info->bus_info->name, prop->driver) != 0) {
 754             continue;
 755         }
 756         if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
 757             exit(1);
 758         }
 759     }
 760 }
 761
 762 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 763 {
 764     GlobalProperty *g;
 765
 766     g = qemu_mallocz(sizeof(*g));
 767     g->driver   = qemu_opt_get(opts, "driver");
 768     g->property = qemu_opt_get(opts, "property");
 769     g->value    = qemu_opt_get(opts, "value");
 770     qdev_prop_register_global(g);
 771     return 0;
 772 }
 773
 774 void qemu_add_globals(void)
 775 {
 776     qemu_opts_foreach(qemu_find_opts("global"), qdev_add_one_global, NULL, 0);
 777 }