| 1 | #include "qemu/osdep.h" |
| 2 | #include "hw/core/qdev-properties.h" |
| 3 | #include "qapi/error.h" |
| 4 | #include "qapi/qapi-types-misc.h" |
| 5 | #include "qapi/qapi-visit-common.h" |
| 6 | #include "qobject/qlist.h" |
| 7 | #include "qemu/ctype.h" |
| 8 | #include "qemu/error-report.h" |
| 9 | #include "qapi/visitor.h" |
| 10 | #include "qemu/units.h" |
| 11 | #include "qemu/cutils.h" |
| 12 | #include "qdev-prop-internal.h" |
| 13 | #include "qom/compat-properties.h" |
| 14 | #include "qom/qom-qobject.h" |
| 15 | |
| 16 | void qdev_prop_set_after_realize(DeviceState *dev, const char *name, |
| 17 | Error **errp) |
| 18 | { |
| 19 | if (dev->id) { |
| 20 | error_setg(errp, "Attempt to set property '%s' on device '%s' " |
| 21 | "(type '%s') after it was realized", name, dev->id, |
| 22 | object_get_typename(OBJECT(dev))); |
| 23 | } else { |
| 24 | error_setg(errp, "Attempt to set property '%s' on anonymous device " |
| 25 | "(type '%s') after it was realized", name, |
| 26 | object_get_typename(OBJECT(dev))); |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | /* returns: true if property is allowed to be set, false otherwise */ |
| 31 | static bool qdev_prop_allow_set(Object *obj, const char *name, |
| 32 | const PropertyInfo *info, Error **errp) |
| 33 | { |
| 34 | DeviceState *dev = DEVICE(obj); |
| 35 | |
| 36 | if (dev->realized && !info->realized_set_allowed) { |
| 37 | qdev_prop_set_after_realize(dev, name, errp); |
| 38 | return false; |
| 39 | } |
| 40 | return true; |
| 41 | } |
| 42 | |
| 43 | void qdev_prop_allow_set_link_before_realize(const Object *obj, |
| 44 | const char *name, |
| 45 | Object *val, Error **errp) |
| 46 | { |
| 47 | DeviceState *dev = DEVICE(obj); |
| 48 | |
| 49 | if (dev->realized) { |
| 50 | error_setg(errp, "Attempt to set link property '%s' on device '%s' " |
| 51 | "(type '%s') after it was realized", |
| 52 | name, dev->id, object_get_typename(obj)); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | void *object_field_prop_ptr(Object *obj, const Property *prop) |
| 57 | { |
| 58 | void *ptr = obj; |
| 59 | ptr += prop->offset; |
| 60 | return ptr; |
| 61 | } |
| 62 | |
| 63 | static void field_prop_get(Object *obj, Visitor *v, const char *name, |
| 64 | void *opaque, Error **errp) |
| 65 | { |
| 66 | const Property *prop = opaque; |
| 67 | return prop->info->get(obj, v, name, opaque, errp); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * field_prop_getter: Return getter function to be used for property |
| 72 | * |
| 73 | * Return value can be NULL if @info has no getter function. |
| 74 | */ |
| 75 | static ObjectPropertyAccessor *field_prop_getter(const PropertyInfo *info) |
| 76 | { |
| 77 | return info->get ? field_prop_get : NULL; |
| 78 | } |
| 79 | |
| 80 | static void field_prop_set(Object *obj, Visitor *v, const char *name, |
| 81 | void *opaque, Error **errp) |
| 82 | { |
| 83 | const Property *prop = opaque; |
| 84 | |
| 85 | if (!qdev_prop_allow_set(obj, name, prop->info, errp)) { |
| 86 | return; |
| 87 | } |
| 88 | |
| 89 | return prop->info->set(obj, v, name, opaque, errp); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * field_prop_setter: Return setter function to be used for property |
| 94 | * |
| 95 | * Return value can be NULL if @info has not setter function. |
| 96 | */ |
| 97 | static ObjectPropertyAccessor *field_prop_setter(const PropertyInfo *info) |
| 98 | { |
| 99 | return info->set ? field_prop_set : NULL; |
| 100 | } |
| 101 | |
| 102 | void qdev_propinfo_get_enum(Object *obj, Visitor *v, const char *name, |
| 103 | void *opaque, Error **errp) |
| 104 | { |
| 105 | const Property *prop = opaque; |
| 106 | int *ptr = object_field_prop_ptr(obj, prop); |
| 107 | |
| 108 | visit_type_enum(v, name, ptr, prop->info->enum_table, errp); |
| 109 | } |
| 110 | |
| 111 | void qdev_propinfo_set_enum(Object *obj, Visitor *v, const char *name, |
| 112 | void *opaque, Error **errp) |
| 113 | { |
| 114 | const Property *prop = opaque; |
| 115 | int *ptr = object_field_prop_ptr(obj, prop); |
| 116 | |
| 117 | visit_type_enum(v, name, ptr, prop->info->enum_table, errp); |
| 118 | } |
| 119 | |
| 120 | void qdev_propinfo_set_default_value_enum(ObjectProperty *op, |
| 121 | const Property *prop) |
| 122 | { |
| 123 | object_property_set_default_str(op, |
| 124 | qapi_enum_lookup(prop->info->enum_table, prop->defval.i)); |
| 125 | } |
| 126 | |
| 127 | /* Bit */ |
| 128 | |
| 129 | static uint32_t qdev_get_prop_mask(const Property *prop) |
| 130 | { |
| 131 | assert(prop->info == &qdev_prop_bit); |
| 132 | return 0x1 << prop->bitnr; |
| 133 | } |
| 134 | |
| 135 | static void bit_prop_set(Object *obj, const Property *props, bool val) |
| 136 | { |
| 137 | uint32_t *p = object_field_prop_ptr(obj, props); |
| 138 | uint32_t mask = qdev_get_prop_mask(props); |
| 139 | if (val) { |
| 140 | *p |= mask; |
| 141 | } else { |
| 142 | *p &= ~mask; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | static void prop_get_bit(Object *obj, Visitor *v, const char *name, |
| 147 | void *opaque, Error **errp) |
| 148 | { |
| 149 | const Property *prop = opaque; |
| 150 | uint32_t *p = object_field_prop_ptr(obj, prop); |
| 151 | bool value = (*p & qdev_get_prop_mask(prop)) != 0; |
| 152 | |
| 153 | visit_type_bool(v, name, &value, errp); |
| 154 | } |
| 155 | |
| 156 | static void prop_set_bit(Object *obj, Visitor *v, const char *name, |
| 157 | void *opaque, Error **errp) |
| 158 | { |
| 159 | const Property *prop = opaque; |
| 160 | bool value; |
| 161 | |
| 162 | if (!visit_type_bool(v, name, &value, errp)) { |
| 163 | return; |
| 164 | } |
| 165 | bit_prop_set(obj, prop, value); |
| 166 | } |
| 167 | |
| 168 | static void set_default_value_bool(ObjectProperty *op, const Property *prop) |
| 169 | { |
| 170 | object_property_set_default_bool(op, prop->defval.u); |
| 171 | } |
| 172 | |
| 173 | const PropertyInfo qdev_prop_bit = { |
| 174 | .type = "bool", |
| 175 | .description = "on/off", |
| 176 | .get = prop_get_bit, |
| 177 | .set = prop_set_bit, |
| 178 | .set_default_value = set_default_value_bool, |
| 179 | }; |
| 180 | |
| 181 | /* Bit64 */ |
| 182 | |
| 183 | static uint64_t qdev_get_prop_mask64(const Property *prop) |
| 184 | { |
| 185 | assert(prop->info == &qdev_prop_bit64 || |
| 186 | prop->info == &qdev_prop_on_off_auto_bit64); |
| 187 | return 0x1ull << prop->bitnr; |
| 188 | } |
| 189 | |
| 190 | static void bit64_prop_set(Object *obj, const Property *props, bool val) |
| 191 | { |
| 192 | uint64_t *p = object_field_prop_ptr(obj, props); |
| 193 | uint64_t mask = qdev_get_prop_mask64(props); |
| 194 | if (val) { |
| 195 | *p |= mask; |
| 196 | } else { |
| 197 | *p &= ~mask; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | static void prop_get_bit64(Object *obj, Visitor *v, const char *name, |
| 202 | void *opaque, Error **errp) |
| 203 | { |
| 204 | const Property *prop = opaque; |
| 205 | uint64_t *p = object_field_prop_ptr(obj, prop); |
| 206 | bool value = (*p & qdev_get_prop_mask64(prop)) != 0; |
| 207 | |
| 208 | visit_type_bool(v, name, &value, errp); |
| 209 | } |
| 210 | |
| 211 | static void prop_set_bit64(Object *obj, Visitor *v, const char *name, |
| 212 | void *opaque, Error **errp) |
| 213 | { |
| 214 | const Property *prop = opaque; |
| 215 | bool value; |
| 216 | |
| 217 | if (!visit_type_bool(v, name, &value, errp)) { |
| 218 | return; |
| 219 | } |
| 220 | bit64_prop_set(obj, prop, value); |
| 221 | } |
| 222 | |
| 223 | const PropertyInfo qdev_prop_bit64 = { |
| 224 | .type = "bool", |
| 225 | .description = "on/off", |
| 226 | .get = prop_get_bit64, |
| 227 | .set = prop_set_bit64, |
| 228 | .set_default_value = set_default_value_bool, |
| 229 | }; |
| 230 | |
| 231 | static void prop_get_on_off_auto_bit64(Object *obj, Visitor *v, |
| 232 | const char *name, void *opaque, |
| 233 | Error **errp) |
| 234 | { |
| 235 | Property *prop = opaque; |
| 236 | OnOffAutoBit64 *p = object_field_prop_ptr(obj, prop); |
| 237 | OnOffAuto value; |
| 238 | uint64_t mask = qdev_get_prop_mask64(prop); |
| 239 | |
| 240 | if (p->auto_bits & mask) { |
| 241 | value = ON_OFF_AUTO_AUTO; |
| 242 | } else if (p->on_bits & mask) { |
| 243 | value = ON_OFF_AUTO_ON; |
| 244 | } else { |
| 245 | value = ON_OFF_AUTO_OFF; |
| 246 | } |
| 247 | |
| 248 | visit_type_OnOffAuto(v, name, &value, errp); |
| 249 | } |
| 250 | |
| 251 | static void prop_set_on_off_auto_bit64(Object *obj, Visitor *v, |
| 252 | const char *name, void *opaque, |
| 253 | Error **errp) |
| 254 | { |
| 255 | Property *prop = opaque; |
| 256 | OnOffAutoBit64 *p = object_field_prop_ptr(obj, prop); |
| 257 | OnOffAuto value; |
| 258 | uint64_t mask = qdev_get_prop_mask64(prop); |
| 259 | |
| 260 | if (!visit_type_OnOffAuto(v, name, &value, errp)) { |
| 261 | return; |
| 262 | } |
| 263 | |
| 264 | switch (value) { |
| 265 | case ON_OFF_AUTO_AUTO: |
| 266 | p->on_bits &= ~mask; |
| 267 | p->auto_bits |= mask; |
| 268 | break; |
| 269 | |
| 270 | case ON_OFF_AUTO_ON: |
| 271 | p->on_bits |= mask; |
| 272 | p->auto_bits &= ~mask; |
| 273 | break; |
| 274 | |
| 275 | case ON_OFF_AUTO_OFF: |
| 276 | p->on_bits &= ~mask; |
| 277 | p->auto_bits &= ~mask; |
| 278 | break; |
| 279 | |
| 280 | case ON_OFF_AUTO__MAX: |
| 281 | g_assert_not_reached(); |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | const PropertyInfo qdev_prop_on_off_auto_bit64 = { |
| 286 | .type = "OnOffAuto", |
| 287 | .description = "on/off/auto", |
| 288 | .enum_table = &OnOffAuto_lookup, |
| 289 | .get = prop_get_on_off_auto_bit64, |
| 290 | .set = prop_set_on_off_auto_bit64, |
| 291 | .set_default_value = qdev_propinfo_set_default_value_enum, |
| 292 | }; |
| 293 | |
| 294 | /* --- bool --- */ |
| 295 | |
| 296 | static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque, |
| 297 | Error **errp) |
| 298 | { |
| 299 | const Property *prop = opaque; |
| 300 | bool *ptr = object_field_prop_ptr(obj, prop); |
| 301 | |
| 302 | visit_type_bool(v, name, ptr, errp); |
| 303 | } |
| 304 | |
| 305 | static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque, |
| 306 | Error **errp) |
| 307 | { |
| 308 | const Property *prop = opaque; |
| 309 | bool *ptr = object_field_prop_ptr(obj, prop); |
| 310 | |
| 311 | visit_type_bool(v, name, ptr, errp); |
| 312 | } |
| 313 | |
| 314 | const PropertyInfo qdev_prop_bool = { |
| 315 | .type = "bool", |
| 316 | .description = "on/off", |
| 317 | .get = get_bool, |
| 318 | .set = set_bool, |
| 319 | .set_default_value = set_default_value_bool, |
| 320 | }; |
| 321 | |
| 322 | /* --- 8bit integer --- */ |
| 323 | |
| 324 | static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque, |
| 325 | Error **errp) |
| 326 | { |
| 327 | const Property *prop = opaque; |
| 328 | uint8_t *ptr = object_field_prop_ptr(obj, prop); |
| 329 | |
| 330 | visit_type_uint8(v, name, ptr, errp); |
| 331 | } |
| 332 | |
| 333 | static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque, |
| 334 | Error **errp) |
| 335 | { |
| 336 | const Property *prop = opaque; |
| 337 | uint8_t *ptr = object_field_prop_ptr(obj, prop); |
| 338 | |
| 339 | visit_type_uint8(v, name, ptr, errp); |
| 340 | } |
| 341 | |
| 342 | void qdev_propinfo_set_default_value_int(ObjectProperty *op, |
| 343 | const Property *prop) |
| 344 | { |
| 345 | object_property_set_default_int(op, prop->defval.i); |
| 346 | } |
| 347 | |
| 348 | void qdev_propinfo_set_default_value_uint(ObjectProperty *op, |
| 349 | const Property *prop) |
| 350 | { |
| 351 | object_property_set_default_uint(op, prop->defval.u); |
| 352 | } |
| 353 | |
| 354 | const PropertyInfo qdev_prop_uint8 = { |
| 355 | .type = "uint8", |
| 356 | .get = get_uint8, |
| 357 | .set = set_uint8, |
| 358 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 359 | }; |
| 360 | |
| 361 | /* --- 16bit integer --- */ |
| 362 | |
| 363 | static void get_uint16(Object *obj, Visitor *v, const char *name, |
| 364 | void *opaque, Error **errp) |
| 365 | { |
| 366 | const Property *prop = opaque; |
| 367 | uint16_t *ptr = object_field_prop_ptr(obj, prop); |
| 368 | |
| 369 | visit_type_uint16(v, name, ptr, errp); |
| 370 | } |
| 371 | |
| 372 | static void set_uint16(Object *obj, Visitor *v, const char *name, |
| 373 | void *opaque, Error **errp) |
| 374 | { |
| 375 | const Property *prop = opaque; |
| 376 | uint16_t *ptr = object_field_prop_ptr(obj, prop); |
| 377 | |
| 378 | visit_type_uint16(v, name, ptr, errp); |
| 379 | } |
| 380 | |
| 381 | const PropertyInfo qdev_prop_uint16 = { |
| 382 | .type = "uint16", |
| 383 | .get = get_uint16, |
| 384 | .set = set_uint16, |
| 385 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 386 | }; |
| 387 | |
| 388 | /* --- 32bit integer --- */ |
| 389 | |
| 390 | static void get_uint32(Object *obj, Visitor *v, const char *name, |
| 391 | void *opaque, Error **errp) |
| 392 | { |
| 393 | const Property *prop = opaque; |
| 394 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 395 | |
| 396 | visit_type_uint32(v, name, ptr, errp); |
| 397 | } |
| 398 | |
| 399 | static void set_uint32(Object *obj, Visitor *v, const char *name, |
| 400 | void *opaque, Error **errp) |
| 401 | { |
| 402 | const Property *prop = opaque; |
| 403 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 404 | |
| 405 | visit_type_uint32(v, name, ptr, errp); |
| 406 | } |
| 407 | |
| 408 | void qdev_propinfo_get_int32(Object *obj, Visitor *v, const char *name, |
| 409 | void *opaque, Error **errp) |
| 410 | { |
| 411 | const Property *prop = opaque; |
| 412 | int32_t *ptr = object_field_prop_ptr(obj, prop); |
| 413 | |
| 414 | visit_type_int32(v, name, ptr, errp); |
| 415 | } |
| 416 | |
| 417 | static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque, |
| 418 | Error **errp) |
| 419 | { |
| 420 | const Property *prop = opaque; |
| 421 | int32_t *ptr = object_field_prop_ptr(obj, prop); |
| 422 | |
| 423 | visit_type_int32(v, name, ptr, errp); |
| 424 | } |
| 425 | |
| 426 | const PropertyInfo qdev_prop_uint32 = { |
| 427 | .type = "uint32", |
| 428 | .get = get_uint32, |
| 429 | .set = set_uint32, |
| 430 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 431 | }; |
| 432 | |
| 433 | const PropertyInfo qdev_prop_int32 = { |
| 434 | .type = "int32", |
| 435 | .get = qdev_propinfo_get_int32, |
| 436 | .set = set_int32, |
| 437 | .set_default_value = qdev_propinfo_set_default_value_int, |
| 438 | }; |
| 439 | |
| 440 | /* --- 64bit integer --- */ |
| 441 | |
| 442 | static void get_uint64(Object *obj, Visitor *v, const char *name, |
| 443 | void *opaque, Error **errp) |
| 444 | { |
| 445 | const Property *prop = opaque; |
| 446 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 447 | |
| 448 | visit_type_uint64(v, name, ptr, errp); |
| 449 | } |
| 450 | |
| 451 | static void set_uint64(Object *obj, Visitor *v, const char *name, |
| 452 | void *opaque, Error **errp) |
| 453 | { |
| 454 | const Property *prop = opaque; |
| 455 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 456 | |
| 457 | visit_type_uint64(v, name, ptr, errp); |
| 458 | } |
| 459 | |
| 460 | static void get_int64(Object *obj, Visitor *v, const char *name, |
| 461 | void *opaque, Error **errp) |
| 462 | { |
| 463 | const Property *prop = opaque; |
| 464 | int64_t *ptr = object_field_prop_ptr(obj, prop); |
| 465 | |
| 466 | visit_type_int64(v, name, ptr, errp); |
| 467 | } |
| 468 | |
| 469 | static void set_int64(Object *obj, Visitor *v, const char *name, |
| 470 | void *opaque, Error **errp) |
| 471 | { |
| 472 | const Property *prop = opaque; |
| 473 | int64_t *ptr = object_field_prop_ptr(obj, prop); |
| 474 | |
| 475 | visit_type_int64(v, name, ptr, errp); |
| 476 | } |
| 477 | |
| 478 | const PropertyInfo qdev_prop_uint64 = { |
| 479 | .type = "uint64", |
| 480 | .get = get_uint64, |
| 481 | .set = set_uint64, |
| 482 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 483 | }; |
| 484 | |
| 485 | const PropertyInfo qdev_prop_int64 = { |
| 486 | .type = "int64", |
| 487 | .get = get_int64, |
| 488 | .set = set_int64, |
| 489 | .set_default_value = qdev_propinfo_set_default_value_int, |
| 490 | }; |
| 491 | |
| 492 | static void set_uint64_checkmask(Object *obj, Visitor *v, const char *name, |
| 493 | void *opaque, Error **errp) |
| 494 | { |
| 495 | const Property *prop = opaque; |
| 496 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 497 | |
| 498 | if (!visit_type_uint64(v, name, ptr, errp)) { |
| 499 | return; |
| 500 | } |
| 501 | if (*ptr & ~prop->bitmask) { |
| 502 | error_setg(errp, "Property value for '%s' has bits outside mask '0x%" PRIx64 "'", |
| 503 | name, prop->bitmask); |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | const PropertyInfo qdev_prop_uint64_checkmask = { |
| 508 | .type = "uint64", |
| 509 | .get = get_uint64, |
| 510 | .set = set_uint64_checkmask, |
| 511 | }; |
| 512 | |
| 513 | /* --- pointer-size integer --- */ |
| 514 | |
| 515 | static void get_usize(Object *obj, Visitor *v, const char *name, void *opaque, |
| 516 | Error **errp) |
| 517 | { |
| 518 | const Property *prop = opaque; |
| 519 | |
| 520 | #if HOST_LONG_BITS == 32 |
| 521 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 522 | visit_type_uint32(v, name, ptr, errp); |
| 523 | #else |
| 524 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 525 | visit_type_uint64(v, name, ptr, errp); |
| 526 | #endif |
| 527 | } |
| 528 | |
| 529 | static void set_usize(Object *obj, Visitor *v, const char *name, void *opaque, |
| 530 | Error **errp) |
| 531 | { |
| 532 | const Property *prop = opaque; |
| 533 | |
| 534 | #if HOST_LONG_BITS == 32 |
| 535 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 536 | visit_type_uint32(v, name, ptr, errp); |
| 537 | #else |
| 538 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 539 | visit_type_uint64(v, name, ptr, errp); |
| 540 | #endif |
| 541 | } |
| 542 | |
| 543 | const PropertyInfo qdev_prop_usize = { |
| 544 | .type = "usize", |
| 545 | .get = get_usize, |
| 546 | .set = set_usize, |
| 547 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 548 | }; |
| 549 | |
| 550 | /* --- string --- */ |
| 551 | |
| 552 | static void release_string(Object *obj, const char *name, void *opaque) |
| 553 | { |
| 554 | const Property *prop = opaque; |
| 555 | |
| 556 | g_clear_pointer((char **)object_field_prop_ptr(obj, prop), g_free); |
| 557 | } |
| 558 | |
| 559 | static void get_string(Object *obj, Visitor *v, const char *name, |
| 560 | void *opaque, Error **errp) |
| 561 | { |
| 562 | const Property *prop = opaque; |
| 563 | char **ptr = object_field_prop_ptr(obj, prop); |
| 564 | |
| 565 | if (!*ptr) { |
| 566 | char *str = (char *)""; |
| 567 | visit_type_str(v, name, &str, errp); |
| 568 | } else { |
| 569 | visit_type_str(v, name, ptr, errp); |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | static void set_string(Object *obj, Visitor *v, const char *name, |
| 574 | void *opaque, Error **errp) |
| 575 | { |
| 576 | const Property *prop = opaque; |
| 577 | char **ptr = object_field_prop_ptr(obj, prop); |
| 578 | char *str; |
| 579 | |
| 580 | if (!visit_type_str(v, name, &str, errp)) { |
| 581 | return; |
| 582 | } |
| 583 | g_free(*ptr); |
| 584 | *ptr = str; |
| 585 | } |
| 586 | |
| 587 | const PropertyInfo qdev_prop_string = { |
| 588 | .type = "str", |
| 589 | .release = release_string, |
| 590 | .get = get_string, |
| 591 | .set = set_string, |
| 592 | }; |
| 593 | |
| 594 | /* --- on/off/auto --- */ |
| 595 | |
| 596 | const PropertyInfo qdev_prop_on_off_auto = { |
| 597 | .type = "OnOffAuto", |
| 598 | .description = "on/off/auto", |
| 599 | .enum_table = &OnOffAuto_lookup, |
| 600 | .get = qdev_propinfo_get_enum, |
| 601 | .set = qdev_propinfo_set_enum, |
| 602 | .set_default_value = qdev_propinfo_set_default_value_enum, |
| 603 | }; |
| 604 | |
| 605 | /* --- 32bit unsigned int 'size' type --- */ |
| 606 | |
| 607 | void qdev_propinfo_get_size32(Object *obj, Visitor *v, const char *name, |
| 608 | void *opaque, Error **errp) |
| 609 | { |
| 610 | const Property *prop = opaque; |
| 611 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 612 | uint64_t value = *ptr; |
| 613 | |
| 614 | visit_type_size(v, name, &value, errp); |
| 615 | } |
| 616 | |
| 617 | static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque, |
| 618 | Error **errp) |
| 619 | { |
| 620 | const Property *prop = opaque; |
| 621 | uint32_t *ptr = object_field_prop_ptr(obj, prop); |
| 622 | uint64_t value; |
| 623 | |
| 624 | if (!visit_type_size(v, name, &value, errp)) { |
| 625 | return; |
| 626 | } |
| 627 | |
| 628 | if (value > UINT32_MAX) { |
| 629 | error_setg(errp, |
| 630 | "Property %s.%s doesn't take value %" PRIu64 |
| 631 | " (maximum: %u)", |
| 632 | object_get_typename(obj), name, value, UINT32_MAX); |
| 633 | return; |
| 634 | } |
| 635 | |
| 636 | *ptr = value; |
| 637 | } |
| 638 | |
| 639 | const PropertyInfo qdev_prop_size32 = { |
| 640 | .type = "size", |
| 641 | .get = qdev_propinfo_get_size32, |
| 642 | .set = set_size32, |
| 643 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 644 | }; |
| 645 | |
| 646 | /* --- support for array properties --- */ |
| 647 | |
| 648 | typedef struct ArrayElementList ArrayElementList; |
| 649 | |
| 650 | struct ArrayElementList { |
| 651 | ArrayElementList *next; |
| 652 | void *value; |
| 653 | }; |
| 654 | |
| 655 | /* |
| 656 | * Given an array property @parent_prop in @obj, return a Property for a |
| 657 | * specific element of the array. Arrays are backed by an uint32_t length field |
| 658 | * and an element array. @elem points at an element in this element array. |
| 659 | */ |
| 660 | static Property array_elem_prop(Object *obj, const Property *parent_prop, |
| 661 | const char *name, char *elem) |
| 662 | { |
| 663 | return (Property) { |
| 664 | .info = parent_prop->arrayinfo, |
| 665 | .name = name, |
| 666 | /* |
| 667 | * This ugly piece of pointer arithmetic sets up the offset so |
| 668 | * that when the underlying release hook calls qdev_get_prop_ptr |
| 669 | * they get the right answer despite the array element not actually |
| 670 | * being inside the device struct. |
| 671 | */ |
| 672 | .offset = (uintptr_t)elem - (uintptr_t)obj, |
| 673 | .link_type = parent_prop->link_type, |
| 674 | }; |
| 675 | } |
| 676 | |
| 677 | /* |
| 678 | * Object property release callback for array properties: We call the |
| 679 | * underlying element's property release hook for each element and free the |
| 680 | * property array. |
| 681 | */ |
| 682 | static void release_prop_array(Object *obj, const char *name, void *opaque) |
| 683 | { |
| 684 | const Property *prop = opaque; |
| 685 | uint32_t *alenptr = object_field_prop_ptr(obj, prop); |
| 686 | void **arrayptr = (void *)obj + prop->arrayoffset; |
| 687 | char *elem = *arrayptr; |
| 688 | int i; |
| 689 | |
| 690 | if (prop->arrayinfo->release) { |
| 691 | for (i = 0; i < *alenptr; i++) { |
| 692 | Property elem_prop = array_elem_prop(obj, prop, name, elem); |
| 693 | prop->arrayinfo->release(obj, NULL, &elem_prop); |
| 694 | elem += prop->arrayfieldsize; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | g_clear_pointer(arrayptr, g_free); |
| 699 | *alenptr = 0; |
| 700 | } |
| 701 | |
| 702 | /* |
| 703 | * Setter for an array property. This sets both the array length (which |
| 704 | * is technically the property field in the object) and the array itself |
| 705 | * (a pointer to which is stored in the additional field described by |
| 706 | * prop->arrayoffset). |
| 707 | */ |
| 708 | static void set_prop_array(Object *obj, Visitor *v, const char *name, |
| 709 | void *opaque, Error **errp) |
| 710 | { |
| 711 | ERRP_GUARD(); |
| 712 | const Property *prop = opaque; |
| 713 | uint32_t *alenptr = object_field_prop_ptr(obj, prop); |
| 714 | void **arrayptr = (void *)obj + prop->arrayoffset; |
| 715 | ArrayElementList *list, *elem, *next; |
| 716 | const size_t size = sizeof(*list); |
| 717 | char *elemptr; |
| 718 | bool ok = true; |
| 719 | |
| 720 | if (*alenptr) { |
| 721 | error_setg(errp, "array size property %s may not be set more than once", |
| 722 | name); |
| 723 | return; |
| 724 | } |
| 725 | |
| 726 | if (!visit_start_list(v, name, (GenericList **) &list, size, errp)) { |
| 727 | return; |
| 728 | } |
| 729 | |
| 730 | /* Read the whole input into a temporary list */ |
| 731 | elem = list; |
| 732 | while (elem) { |
| 733 | Property elem_prop; |
| 734 | |
| 735 | elem->value = g_malloc0(prop->arrayfieldsize); |
| 736 | elem_prop = array_elem_prop(obj, prop, name, elem->value); |
| 737 | prop->arrayinfo->set(obj, v, NULL, &elem_prop, errp); |
| 738 | if (*errp) { |
| 739 | ok = false; |
| 740 | goto out_obj; |
| 741 | } |
| 742 | if (*alenptr == INT_MAX) { |
| 743 | error_setg(errp, "array is too big"); |
| 744 | return; |
| 745 | } |
| 746 | (*alenptr)++; |
| 747 | elem = (ArrayElementList *) visit_next_list(v, (GenericList*) elem, |
| 748 | size); |
| 749 | } |
| 750 | |
| 751 | ok = visit_check_list(v, errp); |
| 752 | out_obj: |
| 753 | visit_end_list(v, (void**) &list); |
| 754 | |
| 755 | if (!ok) { |
| 756 | for (elem = list; elem; elem = next) { |
| 757 | Property elem_prop = array_elem_prop(obj, prop, name, |
| 758 | elem->value); |
| 759 | if (prop->arrayinfo->release) { |
| 760 | prop->arrayinfo->release(obj, NULL, &elem_prop); |
| 761 | } |
| 762 | next = elem->next; |
| 763 | g_free(elem->value); |
| 764 | g_free(elem); |
| 765 | } |
| 766 | return; |
| 767 | } |
| 768 | |
| 769 | /* |
| 770 | * Now that we know how big the array has to be, move the data over to a |
| 771 | * linear array and free the temporary list. |
| 772 | */ |
| 773 | *arrayptr = g_malloc_n(*alenptr, prop->arrayfieldsize); |
| 774 | elemptr = *arrayptr; |
| 775 | for (elem = list; elem; elem = next) { |
| 776 | memcpy(elemptr, elem->value, prop->arrayfieldsize); |
| 777 | elemptr += prop->arrayfieldsize; |
| 778 | next = elem->next; |
| 779 | g_free(elem->value); |
| 780 | g_free(elem); |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | static void get_prop_array(Object *obj, Visitor *v, const char *name, |
| 785 | void *opaque, Error **errp) |
| 786 | { |
| 787 | ERRP_GUARD(); |
| 788 | const Property *prop = opaque; |
| 789 | uint32_t *alenptr = object_field_prop_ptr(obj, prop); |
| 790 | void **arrayptr = (void *)obj + prop->arrayoffset; |
| 791 | char *elemptr = *arrayptr; |
| 792 | ArrayElementList *list = NULL, *elem; |
| 793 | ArrayElementList **tail = &list; |
| 794 | const size_t size = sizeof(*list); |
| 795 | int i; |
| 796 | bool ok; |
| 797 | |
| 798 | /* At least the string output visitor needs a real list */ |
| 799 | for (i = 0; i < *alenptr; i++) { |
| 800 | elem = g_new0(ArrayElementList, 1); |
| 801 | elem->value = elemptr; |
| 802 | elemptr += prop->arrayfieldsize; |
| 803 | |
| 804 | *tail = elem; |
| 805 | tail = &elem->next; |
| 806 | } |
| 807 | |
| 808 | if (!visit_start_list(v, name, (GenericList **) &list, size, errp)) { |
| 809 | return; |
| 810 | } |
| 811 | |
| 812 | elem = list; |
| 813 | while (elem) { |
| 814 | Property elem_prop = array_elem_prop(obj, prop, name, elem->value); |
| 815 | prop->arrayinfo->get(obj, v, NULL, &elem_prop, errp); |
| 816 | if (*errp) { |
| 817 | goto out_obj; |
| 818 | } |
| 819 | elem = (ArrayElementList *) visit_next_list(v, (GenericList*) elem, |
| 820 | size); |
| 821 | } |
| 822 | |
| 823 | /* visit_check_list() can only fail for input visitors */ |
| 824 | ok = visit_check_list(v, errp); |
| 825 | assert(ok); |
| 826 | |
| 827 | out_obj: |
| 828 | visit_end_list(v, (void**) &list); |
| 829 | |
| 830 | while (list) { |
| 831 | elem = list; |
| 832 | list = elem->next; |
| 833 | g_free(elem); |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | static void default_prop_array(ObjectProperty *op, const Property *prop) |
| 838 | { |
| 839 | object_property_set_default_list(op); |
| 840 | } |
| 841 | |
| 842 | const PropertyInfo qdev_prop_array = { |
| 843 | .type = "list", |
| 844 | .get = get_prop_array, |
| 845 | .set = set_prop_array, |
| 846 | .release = release_prop_array, |
| 847 | .set_default_value = default_prop_array, |
| 848 | }; |
| 849 | |
| 850 | /* --- public helpers --- */ |
| 851 | |
| 852 | static const Property *qdev_prop_walk(DeviceClass *cls, const char *name) |
| 853 | { |
| 854 | for (int i = 0, n = cls->props_count_; i < n; ++i) { |
| 855 | const Property *prop = &cls->props_[i]; |
| 856 | if (strcmp(prop->name, name) == 0) { |
| 857 | return prop; |
| 858 | } |
| 859 | } |
| 860 | return NULL; |
| 861 | } |
| 862 | |
| 863 | static const Property *qdev_prop_find(DeviceState *dev, const char *name) |
| 864 | { |
| 865 | ObjectClass *class; |
| 866 | const Property *prop; |
| 867 | |
| 868 | /* device properties */ |
| 869 | class = object_get_class(OBJECT(dev)); |
| 870 | do { |
| 871 | prop = qdev_prop_walk(DEVICE_CLASS(class), name); |
| 872 | if (prop) { |
| 873 | return prop; |
| 874 | } |
| 875 | class = object_class_get_parent(class); |
| 876 | } while (class != object_class_by_name(TYPE_DEVICE)); |
| 877 | |
| 878 | return NULL; |
| 879 | } |
| 880 | |
| 881 | void error_set_from_qdev_prop_error(Error **errp, int ret, Object *obj, |
| 882 | const char *name, const char *value) |
| 883 | { |
| 884 | switch (ret) { |
| 885 | case -EEXIST: |
| 886 | error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use", |
| 887 | object_get_typename(obj), name, value); |
| 888 | break; |
| 889 | default: |
| 890 | case -EINVAL: |
| 891 | error_setg(errp, "Property '%s.%s' doesn't take value '%s'", |
| 892 | object_get_typename(obj), name, value); |
| 893 | break; |
| 894 | case -ENOENT: |
| 895 | error_setg(errp, "Property '%s.%s' can't find value '%s'", |
| 896 | object_get_typename(obj), name, value); |
| 897 | break; |
| 898 | case 0: |
| 899 | break; |
| 900 | } |
| 901 | } |
| 902 | |
| 903 | void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value) |
| 904 | { |
| 905 | object_property_set_bool(OBJECT(dev), name, value, &error_abort); |
| 906 | } |
| 907 | |
| 908 | void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value) |
| 909 | { |
| 910 | object_property_set_int(OBJECT(dev), name, value, &error_abort); |
| 911 | } |
| 912 | |
| 913 | void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value) |
| 914 | { |
| 915 | object_property_set_int(OBJECT(dev), name, value, &error_abort); |
| 916 | } |
| 917 | |
| 918 | void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value) |
| 919 | { |
| 920 | object_property_set_int(OBJECT(dev), name, value, &error_abort); |
| 921 | } |
| 922 | |
| 923 | void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value) |
| 924 | { |
| 925 | object_property_set_int(OBJECT(dev), name, value, &error_abort); |
| 926 | } |
| 927 | |
| 928 | void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value) |
| 929 | { |
| 930 | object_property_set_int(OBJECT(dev), name, value, &error_abort); |
| 931 | } |
| 932 | |
| 933 | void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value) |
| 934 | { |
| 935 | object_property_set_str(OBJECT(dev), name, value, &error_abort); |
| 936 | } |
| 937 | |
| 938 | void qdev_prop_set_enum(DeviceState *dev, const char *name, int value) |
| 939 | { |
| 940 | const Property *prop; |
| 941 | |
| 942 | prop = qdev_prop_find(dev, name); |
| 943 | object_property_set_str(OBJECT(dev), name, |
| 944 | qapi_enum_lookup(prop->info->enum_table, value), |
| 945 | &error_abort); |
| 946 | } |
| 947 | |
| 948 | void qdev_prop_set_array(DeviceState *dev, const char *name, QList *values) |
| 949 | { |
| 950 | object_property_set_qobject(OBJECT(dev), name, QOBJECT(values), |
| 951 | &error_abort); |
| 952 | qobject_unref(values); |
| 953 | } |
| 954 | |
| 955 | void qlist_append_link(QList *qlist, Object *obj) |
| 956 | { |
| 957 | g_autofree char *path = object_get_canonical_path(obj); |
| 958 | qlist_append_str(qlist, path); |
| 959 | } |
| 960 | |
| 961 | static GPtrArray *global_props(void) |
| 962 | { |
| 963 | static GPtrArray *gp; |
| 964 | |
| 965 | if (!gp) { |
| 966 | gp = g_ptr_array_new(); |
| 967 | } |
| 968 | |
| 969 | return gp; |
| 970 | } |
| 971 | |
| 972 | void qdev_prop_register_global(GlobalProperty *prop) |
| 973 | { |
| 974 | g_ptr_array_add(global_props(), prop); |
| 975 | } |
| 976 | |
| 977 | const GlobalProperty *qdev_find_global_prop(Object *obj, |
| 978 | const char *name) |
| 979 | { |
| 980 | GPtrArray *props = global_props(); |
| 981 | const GlobalProperty *p; |
| 982 | int i; |
| 983 | |
| 984 | for (i = 0; i < props->len; i++) { |
| 985 | p = g_ptr_array_index(props, i); |
| 986 | if (object_dynamic_cast(obj, p->driver) |
| 987 | && !strcmp(p->property, name)) { |
| 988 | return p; |
| 989 | } |
| 990 | } |
| 991 | return NULL; |
| 992 | } |
| 993 | |
| 994 | int qdev_prop_check_globals(void) |
| 995 | { |
| 996 | int i, ret = 0; |
| 997 | |
| 998 | for (i = 0; i < global_props()->len; i++) { |
| 999 | GlobalProperty *prop; |
| 1000 | ObjectClass *oc; |
| 1001 | DeviceClass *dc; |
| 1002 | |
| 1003 | prop = g_ptr_array_index(global_props(), i); |
| 1004 | if (prop->used) { |
| 1005 | continue; |
| 1006 | } |
| 1007 | oc = object_class_by_name(prop->driver); |
| 1008 | oc = object_class_dynamic_cast(oc, TYPE_DEVICE); |
| 1009 | if (!oc) { |
| 1010 | warn_report("global %s.%s has invalid class name", |
| 1011 | prop->driver, prop->property); |
| 1012 | ret = 1; |
| 1013 | continue; |
| 1014 | } |
| 1015 | dc = DEVICE_CLASS(oc); |
| 1016 | if (!dc->hotpluggable && !prop->used) { |
| 1017 | warn_report("global %s.%s=%s not used", |
| 1018 | prop->driver, prop->property, prop->value); |
| 1019 | ret = 1; |
| 1020 | continue; |
| 1021 | } |
| 1022 | } |
| 1023 | return ret; |
| 1024 | } |
| 1025 | |
| 1026 | void qdev_prop_set_globals(DeviceState *dev) |
| 1027 | { |
| 1028 | object_apply_global_props(OBJECT(dev), global_props(), |
| 1029 | dev->hotplugged ? NULL : &error_fatal); |
| 1030 | } |
| 1031 | |
| 1032 | /* --- 64bit unsigned int 'size' type --- */ |
| 1033 | |
| 1034 | static void get_size(Object *obj, Visitor *v, const char *name, void *opaque, |
| 1035 | Error **errp) |
| 1036 | { |
| 1037 | const Property *prop = opaque; |
| 1038 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 1039 | |
| 1040 | visit_type_size(v, name, ptr, errp); |
| 1041 | } |
| 1042 | |
| 1043 | static void set_size(Object *obj, Visitor *v, const char *name, void *opaque, |
| 1044 | Error **errp) |
| 1045 | { |
| 1046 | const Property *prop = opaque; |
| 1047 | uint64_t *ptr = object_field_prop_ptr(obj, prop); |
| 1048 | |
| 1049 | visit_type_size(v, name, ptr, errp); |
| 1050 | } |
| 1051 | |
| 1052 | const PropertyInfo qdev_prop_size = { |
| 1053 | .type = "size", |
| 1054 | .get = get_size, |
| 1055 | .set = set_size, |
| 1056 | .set_default_value = qdev_propinfo_set_default_value_uint, |
| 1057 | }; |
| 1058 | |
| 1059 | /* --- object link property --- */ |
| 1060 | |
| 1061 | static ObjectProperty *create_link_property(ObjectClass *oc, const char *name, |
| 1062 | const Property *prop) |
| 1063 | { |
| 1064 | return object_class_property_add_link(oc, name, prop->link_type, |
| 1065 | prop->offset, |
| 1066 | qdev_prop_allow_set_link_before_realize, |
| 1067 | OBJ_PROP_LINK_STRONG); |
| 1068 | } |
| 1069 | |
| 1070 | /* |
| 1071 | * The logic in these get_link() and set_link() functions is similar |
| 1072 | * to that used for single-element link properties in the |
| 1073 | * object_get_link_property() and object_set_link_property() functions. |
| 1074 | * The difference is largely in how we get the expected type of the |
| 1075 | * link: for us it is in the Property struct, and for a single link |
| 1076 | * property it is part of the property name on the object. |
| 1077 | */ |
| 1078 | static void get_link(Object *obj, Visitor *v, const char *name, void *opaque, |
| 1079 | Error **errp) |
| 1080 | { |
| 1081 | const Property *prop = opaque; |
| 1082 | Object **targetp = object_field_prop_ptr(obj, prop); |
| 1083 | g_autofree char *path = NULL; |
| 1084 | |
| 1085 | if (*targetp) { |
| 1086 | path = object_get_canonical_path(*targetp); |
| 1087 | visit_type_str(v, name, &path, errp); |
| 1088 | } else { |
| 1089 | path = g_strdup(""); |
| 1090 | visit_type_str(v, name, &path, errp); |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | static void set_link(Object *obj, Visitor *v, const char *name, void *opaque, |
| 1095 | Error **errp) |
| 1096 | { |
| 1097 | const Property *prop = opaque; |
| 1098 | Object **targetp = object_field_prop_ptr(obj, prop); |
| 1099 | g_autofree char *path = NULL; |
| 1100 | Object *new_target, *old_target = *targetp; |
| 1101 | |
| 1102 | ERRP_GUARD(); |
| 1103 | |
| 1104 | /* Get the path to the object we want to set the link to */ |
| 1105 | if (!visit_type_str(v, name, &path, errp)) { |
| 1106 | return; |
| 1107 | } |
| 1108 | |
| 1109 | /* Now get the pointer to the actual object */ |
| 1110 | if (*path) { |
| 1111 | new_target = object_resolve_and_typecheck(path, prop->name, |
| 1112 | prop->link_type, errp); |
| 1113 | if (!new_target) { |
| 1114 | return; |
| 1115 | } |
| 1116 | } else { |
| 1117 | new_target = NULL; |
| 1118 | } |
| 1119 | |
| 1120 | /* |
| 1121 | * Our link properties are always OBJ_PROP_LINK_STRONG and |
| 1122 | * have the allow_set_link_before_realize check. |
| 1123 | */ |
| 1124 | qdev_prop_allow_set_link_before_realize(obj, prop->name, new_target, errp); |
| 1125 | if (*errp) { |
| 1126 | return; |
| 1127 | } |
| 1128 | |
| 1129 | *targetp = new_target; |
| 1130 | object_ref(new_target); |
| 1131 | object_unref(old_target); |
| 1132 | } |
| 1133 | |
| 1134 | const PropertyInfo qdev_prop_link = { |
| 1135 | .type = "link", |
| 1136 | .create = create_link_property, |
| 1137 | /* |
| 1138 | * Since we have a create method, the get and set are used |
| 1139 | * only in get_prop_array() and set_prop_array() for the case |
| 1140 | * where we have an array of link properties. |
| 1141 | */ |
| 1142 | .get = get_link, |
| 1143 | .set = set_link, |
| 1144 | }; |
| 1145 | |
| 1146 | void qdev_property_add_static(DeviceState *dev, const Property *prop) |
| 1147 | { |
| 1148 | Object *obj = OBJECT(dev); |
| 1149 | ObjectProperty *op; |
| 1150 | |
| 1151 | assert(!prop->info->create); |
| 1152 | |
| 1153 | op = object_property_add(obj, prop->name, prop->info->type, |
| 1154 | field_prop_getter(prop->info), |
| 1155 | field_prop_setter(prop->info), |
| 1156 | prop->info->release, |
| 1157 | (Property *)prop); |
| 1158 | |
| 1159 | object_property_set_description(obj, prop->name, |
| 1160 | prop->info->description); |
| 1161 | |
| 1162 | if (prop->set_default) { |
| 1163 | prop->info->set_default_value(op, prop); |
| 1164 | if (op->init) { |
| 1165 | op->init(obj, op); |
| 1166 | } |
| 1167 | } |
| 1168 | } |
| 1169 | |
| 1170 | static void qdev_class_add_property(DeviceClass *klass, const char *name, |
| 1171 | const Property *prop) |
| 1172 | { |
| 1173 | ObjectClass *oc = OBJECT_CLASS(klass); |
| 1174 | ObjectProperty *op; |
| 1175 | |
| 1176 | if (prop->info->create) { |
| 1177 | op = prop->info->create(oc, name, prop); |
| 1178 | } else { |
| 1179 | op = object_class_property_add(oc, |
| 1180 | name, prop->info->type, |
| 1181 | field_prop_getter(prop->info), |
| 1182 | field_prop_setter(prop->info), |
| 1183 | prop->info->release, |
| 1184 | (Property *)prop); |
| 1185 | } |
| 1186 | if (prop->set_default) { |
| 1187 | prop->info->set_default_value(op, prop); |
| 1188 | } |
| 1189 | object_class_property_set_description(oc, name, prop->info->description); |
| 1190 | } |
| 1191 | |
| 1192 | void device_class_set_props_n(DeviceClass *dc, const Property *props, size_t n) |
| 1193 | { |
| 1194 | /* We used a hole in DeviceClass because that's still a lot. */ |
| 1195 | assert(n <= UINT16_MAX); |
| 1196 | assert(n != 0); |
| 1197 | |
| 1198 | dc->props_ = props; |
| 1199 | dc->props_count_ = n; |
| 1200 | |
| 1201 | for (size_t i = 0; i < n; ++i) { |
| 1202 | const Property *prop = &props[i]; |
| 1203 | assert(prop->name); |
| 1204 | qdev_class_add_property(dc, prop->name, prop); |
| 1205 | } |
| 1206 | } |
| 1207 | |
| 1208 | void qdev_alias_all_properties(DeviceState *target, Object *source) |
| 1209 | { |
| 1210 | ObjectClass *class; |
| 1211 | ObjectPropertyIterator iter; |
| 1212 | ObjectProperty *prop; |
| 1213 | |
| 1214 | class = object_get_class(OBJECT(target)); |
| 1215 | |
| 1216 | object_class_property_iter_init(&iter, class); |
| 1217 | while ((prop = object_property_iter_next(&iter))) { |
| 1218 | if (object_property_find(source, prop->name)) { |
| 1219 | continue; /* skip duplicate properties */ |
| 1220 | } |
| 1221 | |
| 1222 | object_property_add_alias(source, prop->name, |
| 1223 | OBJECT(target), prop->name); |
| 1224 | } |
| 1225 | } |