1 #include "qemu/osdep.h" 2 #include "net/net.h" 3 #include "hw/qdev-properties.h" 4 #include "qapi/error.h" 5 #include "hw/pci/pci.h" 6 #include "qapi/qapi-types-block.h" 7 #include "qapi/qapi-types-misc.h" 8 #include "qapi/qmp/qerror.h" 9 #include "qemu/ctype.h" 10 #include "qemu/error-report.h" 11 #include "hw/block/block.h" 12 #include "net/hub.h" 13 #include "qapi/visitor.h" 14 #include "chardev/char.h" 15 #include "qemu/uuid.h" 16 17 void qdev_prop_set_after_realize(DeviceState *dev, const char *name, 18 Error **errp) 19 { 20 if (dev->id) { 21 error_setg(errp, "Attempt to set property '%s' on device '%s' " 22 "(type '%s') after it was realized", name, dev->id, 23 object_get_typename(OBJECT(dev))); 24 } else { 25 error_setg(errp, "Attempt to set property '%s' on anonymous device " 26 "(type '%s') after it was realized", name, 27 object_get_typename(OBJECT(dev))); 28 } 29 } 30 31 void qdev_prop_allow_set_link_before_realize(const Object *obj, 32 const char *name, 33 Object *val, Error **errp) 34 { 35 DeviceState *dev = DEVICE(obj); 36 37 if (dev->realized) { 38 error_setg(errp, "Attempt to set link property '%s' on device '%s' " 39 "(type '%s') after it was realized", 40 name, dev->id, object_get_typename(obj)); 41 } 42 } 43 44 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop) 45 { 46 void *ptr = dev; 47 ptr += prop->offset; 48 return ptr; 49 } 50 51 static void get_enum(Object *obj, Visitor *v, const char *name, void *opaque, 52 Error **errp) 53 { 54 DeviceState *dev = DEVICE(obj); 55 Property *prop = opaque; 56 int *ptr = qdev_get_prop_ptr(dev, prop); 57 58 visit_type_enum(v, prop->name, ptr, prop->info->enum_table, errp); 59 } 60 61 static void set_enum(Object *obj, Visitor *v, const char *name, void *opaque, 62 Error **errp) 63 { 64 DeviceState *dev = DEVICE(obj); 65 Property *prop = opaque; 66 int *ptr = qdev_get_prop_ptr(dev, prop); 67 68 if (dev->realized) { 69 qdev_prop_set_after_realize(dev, name, errp); 70 return; 71 } 72 73 visit_type_enum(v, prop->name, ptr, prop->info->enum_table, errp); 74 } 75 76 static void set_default_value_enum(Object *obj, const Property *prop) 77 { 78 object_property_set_str(obj, 79 qapi_enum_lookup(prop->info->enum_table, 80 prop->defval.i), 81 prop->name, &error_abort); 82 } 83 84 /* Bit */ 85 86 static uint32_t qdev_get_prop_mask(Property *prop) 87 { 88 assert(prop->info == &qdev_prop_bit); 89 return 0x1 << prop->bitnr; 90 } 91 92 static void bit_prop_set(DeviceState *dev, Property *props, bool val) 93 { 94 uint32_t *p = qdev_get_prop_ptr(dev, props); 95 uint32_t mask = qdev_get_prop_mask(props); 96 if (val) { 97 *p |= mask; 98 } else { 99 *p &= ~mask; 100 } 101 } 102 103 static void prop_get_bit(Object *obj, Visitor *v, const char *name, 104 void *opaque, Error **errp) 105 { 106 DeviceState *dev = DEVICE(obj); 107 Property *prop = opaque; 108 uint32_t *p = qdev_get_prop_ptr(dev, prop); 109 bool value = (*p & qdev_get_prop_mask(prop)) != 0; 110 111 visit_type_bool(v, name, &value, errp); 112 } 113 114 static void prop_set_bit(Object *obj, Visitor *v, const char *name, 115 void *opaque, Error **errp) 116 { 117 DeviceState *dev = DEVICE(obj); 118 Property *prop = opaque; 119 Error *local_err = NULL; 120 bool value; 121 122 if (dev->realized) { 123 qdev_prop_set_after_realize(dev, name, errp); 124 return; 125 } 126 127 visit_type_bool(v, name, &value, &local_err); 128 if (local_err) { 129 error_propagate(errp, local_err); 130 return; 131 } 132 bit_prop_set(dev, prop, value); 133 } 134 135 static void set_default_value_bool(Object *obj, const Property *prop) 136 { 137 object_property_set_bool(obj, prop->defval.u, prop->name, &error_abort); 138 } 139 140 const PropertyInfo qdev_prop_bit = { 141 .name = "bool", 142 .description = "on/off", 143 .get = prop_get_bit, 144 .set = prop_set_bit, 145 .set_default_value = set_default_value_bool, 146 }; 147 148 /* Bit64 */ 149 150 static uint64_t qdev_get_prop_mask64(Property *prop) 151 { 152 assert(prop->info == &qdev_prop_bit64); 153 return 0x1ull << prop->bitnr; 154 } 155 156 static void bit64_prop_set(DeviceState *dev, Property *props, bool val) 157 { 158 uint64_t *p = qdev_get_prop_ptr(dev, props); 159 uint64_t mask = qdev_get_prop_mask64(props); 160 if (val) { 161 *p |= mask; 162 } else { 163 *p &= ~mask; 164 } 165 } 166 167 static void prop_get_bit64(Object *obj, Visitor *v, const char *name, 168 void *opaque, Error **errp) 169 { 170 DeviceState *dev = DEVICE(obj); 171 Property *prop = opaque; 172 uint64_t *p = qdev_get_prop_ptr(dev, prop); 173 bool value = (*p & qdev_get_prop_mask64(prop)) != 0; 174 175 visit_type_bool(v, name, &value, errp); 176 } 177 178 static void prop_set_bit64(Object *obj, Visitor *v, const char *name, 179 void *opaque, Error **errp) 180 { 181 DeviceState *dev = DEVICE(obj); 182 Property *prop = opaque; 183 Error *local_err = NULL; 184 bool value; 185 186 if (dev->realized) { 187 qdev_prop_set_after_realize(dev, name, errp); 188 return; 189 } 190 191 visit_type_bool(v, name, &value, &local_err); 192 if (local_err) { 193 error_propagate(errp, local_err); 194 return; 195 } 196 bit64_prop_set(dev, prop, value); 197 } 198 199 const PropertyInfo qdev_prop_bit64 = { 200 .name = "bool", 201 .description = "on/off", 202 .get = prop_get_bit64, 203 .set = prop_set_bit64, 204 .set_default_value = set_default_value_bool, 205 }; 206 207 /* --- bool --- */ 208 209 static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque, 210 Error **errp) 211 { 212 DeviceState *dev = DEVICE(obj); 213 Property *prop = opaque; 214 bool *ptr = qdev_get_prop_ptr(dev, prop); 215 216 visit_type_bool(v, name, ptr, errp); 217 } 218 219 static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque, 220 Error **errp) 221 { 222 DeviceState *dev = DEVICE(obj); 223 Property *prop = opaque; 224 bool *ptr = qdev_get_prop_ptr(dev, prop); 225 226 if (dev->realized) { 227 qdev_prop_set_after_realize(dev, name, errp); 228 return; 229 } 230 231 visit_type_bool(v, name, ptr, errp); 232 } 233 234 const PropertyInfo qdev_prop_bool = { 235 .name = "bool", 236 .get = get_bool, 237 .set = set_bool, 238 .set_default_value = set_default_value_bool, 239 }; 240 241 /* --- 8bit integer --- */ 242 243 static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque, 244 Error **errp) 245 { 246 DeviceState *dev = DEVICE(obj); 247 Property *prop = opaque; 248 uint8_t *ptr = qdev_get_prop_ptr(dev, prop); 249 250 visit_type_uint8(v, name, ptr, errp); 251 } 252 253 static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque, 254 Error **errp) 255 { 256 DeviceState *dev = DEVICE(obj); 257 Property *prop = opaque; 258 uint8_t *ptr = qdev_get_prop_ptr(dev, prop); 259 260 if (dev->realized) { 261 qdev_prop_set_after_realize(dev, name, errp); 262 return; 263 } 264 265 visit_type_uint8(v, name, ptr, errp); 266 } 267 268 static void set_default_value_int(Object *obj, const Property *prop) 269 { 270 object_property_set_int(obj, prop->defval.i, prop->name, &error_abort); 271 } 272 273 static void set_default_value_uint(Object *obj, const Property *prop) 274 { 275 object_property_set_uint(obj, prop->defval.u, prop->name, &error_abort); 276 } 277 278 const PropertyInfo qdev_prop_uint8 = { 279 .name = "uint8", 280 .get = get_uint8, 281 .set = set_uint8, 282 .set_default_value = set_default_value_uint, 283 }; 284 285 /* --- 16bit integer --- */ 286 287 static void get_uint16(Object *obj, Visitor *v, const char *name, 288 void *opaque, Error **errp) 289 { 290 DeviceState *dev = DEVICE(obj); 291 Property *prop = opaque; 292 uint16_t *ptr = qdev_get_prop_ptr(dev, prop); 293 294 visit_type_uint16(v, name, ptr, errp); 295 } 296 297 static void set_uint16(Object *obj, Visitor *v, const char *name, 298 void *opaque, Error **errp) 299 { 300 DeviceState *dev = DEVICE(obj); 301 Property *prop = opaque; 302 uint16_t *ptr = qdev_get_prop_ptr(dev, prop); 303 304 if (dev->realized) { 305 qdev_prop_set_after_realize(dev, name, errp); 306 return; 307 } 308 309 visit_type_uint16(v, name, ptr, errp); 310 } 311 312 const PropertyInfo qdev_prop_uint16 = { 313 .name = "uint16", 314 .get = get_uint16, 315 .set = set_uint16, 316 .set_default_value = set_default_value_uint, 317 }; 318 319 /* --- 32bit integer --- */ 320 321 static void get_uint32(Object *obj, Visitor *v, const char *name, 322 void *opaque, Error **errp) 323 { 324 DeviceState *dev = DEVICE(obj); 325 Property *prop = opaque; 326 uint32_t *ptr = qdev_get_prop_ptr(dev, prop); 327 328 visit_type_uint32(v, name, ptr, errp); 329 } 330 331 static void set_uint32(Object *obj, Visitor *v, const char *name, 332 void *opaque, Error **errp) 333 { 334 DeviceState *dev = DEVICE(obj); 335 Property *prop = opaque; 336 uint32_t *ptr = qdev_get_prop_ptr(dev, prop); 337 338 if (dev->realized) { 339 qdev_prop_set_after_realize(dev, name, errp); 340 return; 341 } 342 343 visit_type_uint32(v, name, ptr, errp); 344 } 345 346 static void get_int32(Object *obj, Visitor *v, const char *name, void *opaque, 347 Error **errp) 348 { 349 DeviceState *dev = DEVICE(obj); 350 Property *prop = opaque; 351 int32_t *ptr = qdev_get_prop_ptr(dev, prop); 352 353 visit_type_int32(v, name, ptr, errp); 354 } 355 356 static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque, 357 Error **errp) 358 { 359 DeviceState *dev = DEVICE(obj); 360 Property *prop = opaque; 361 int32_t *ptr = qdev_get_prop_ptr(dev, prop); 362 363 if (dev->realized) { 364 qdev_prop_set_after_realize(dev, name, errp); 365 return; 366 } 367 368 visit_type_int32(v, name, ptr, errp); 369 } 370 371 const PropertyInfo qdev_prop_uint32 = { 372 .name = "uint32", 373 .get = get_uint32, 374 .set = set_uint32, 375 .set_default_value = set_default_value_uint, 376 }; 377 378 const PropertyInfo qdev_prop_int32 = { 379 .name = "int32", 380 .get = get_int32, 381 .set = set_int32, 382 .set_default_value = set_default_value_int, 383 }; 384 385 /* --- 64bit integer --- */ 386 387 static void get_uint64(Object *obj, Visitor *v, const char *name, 388 void *opaque, Error **errp) 389 { 390 DeviceState *dev = DEVICE(obj); 391 Property *prop = opaque; 392 uint64_t *ptr = qdev_get_prop_ptr(dev, prop); 393 394 visit_type_uint64(v, name, ptr, errp); 395 } 396 397 static void set_uint64(Object *obj, Visitor *v, const char *name, 398 void *opaque, Error **errp) 399 { 400 DeviceState *dev = DEVICE(obj); 401 Property *prop = opaque; 402 uint64_t *ptr = qdev_get_prop_ptr(dev, prop); 403 404 if (dev->realized) { 405 qdev_prop_set_after_realize(dev, name, errp); 406 return; 407 } 408 409 visit_type_uint64(v, name, ptr, errp); 410 } 411 412 static void get_int64(Object *obj, Visitor *v, const char *name, 413 void *opaque, Error **errp) 414 { 415 DeviceState *dev = DEVICE(obj); 416 Property *prop = opaque; 417 int64_t *ptr = qdev_get_prop_ptr(dev, prop); 418 419 visit_type_int64(v, name, ptr, errp); 420 } 421 422 static void set_int64(Object *obj, Visitor *v, const char *name, 423 void *opaque, Error **errp) 424 { 425 DeviceState *dev = DEVICE(obj); 426 Property *prop = opaque; 427 int64_t *ptr = qdev_get_prop_ptr(dev, prop); 428 429 if (dev->realized) { 430 qdev_prop_set_after_realize(dev, name, errp); 431 return; 432 } 433 434 visit_type_int64(v, name, ptr, errp); 435 } 436 437 const PropertyInfo qdev_prop_uint64 = { 438 .name = "uint64", 439 .get = get_uint64, 440 .set = set_uint64, 441 .set_default_value = set_default_value_uint, 442 }; 443 444 const PropertyInfo qdev_prop_int64 = { 445 .name = "int64", 446 .get = get_int64, 447 .set = set_int64, 448 .set_default_value = set_default_value_int, 449 }; 450 451 /* --- string --- */ 452 453 static void release_string(Object *obj, const char *name, void *opaque) 454 { 455 Property *prop = opaque; 456 g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop)); 457 } 458 459 static void get_string(Object *obj, Visitor *v, const char *name, 460 void *opaque, Error **errp) 461 { 462 DeviceState *dev = DEVICE(obj); 463 Property *prop = opaque; 464 char **ptr = qdev_get_prop_ptr(dev, prop); 465 466 if (!*ptr) { 467 char *str = (char *)""; 468 visit_type_str(v, name, &str, errp); 469 } else { 470 visit_type_str(v, name, ptr, errp); 471 } 472 } 473 474 static void set_string(Object *obj, Visitor *v, const char *name, 475 void *opaque, Error **errp) 476 { 477 DeviceState *dev = DEVICE(obj); 478 Property *prop = opaque; 479 char **ptr = qdev_get_prop_ptr(dev, prop); 480 Error *local_err = NULL; 481 char *str; 482 483 if (dev->realized) { 484 qdev_prop_set_after_realize(dev, name, errp); 485 return; 486 } 487 488 visit_type_str(v, name, &str, &local_err); 489 if (local_err) { 490 error_propagate(errp, local_err); 491 return; 492 } 493 g_free(*ptr); 494 *ptr = str; 495 } 496 497 const PropertyInfo qdev_prop_string = { 498 .name = "str", 499 .release = release_string, 500 .get = get_string, 501 .set = set_string, 502 }; 503 504 /* --- mac address --- */ 505 506 /* 507 * accepted syntax versions: 508 * 01:02:03:04:05:06 509 * 01-02-03-04-05-06 510 */ 511 static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque, 512 Error **errp) 513 { 514 DeviceState *dev = DEVICE(obj); 515 Property *prop = opaque; 516 MACAddr *mac = qdev_get_prop_ptr(dev, prop); 517 char buffer[2 * 6 + 5 + 1]; 518 char *p = buffer; 519 520 snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x", 521 mac->a[0], mac->a[1], mac->a[2], 522 mac->a[3], mac->a[4], mac->a[5]); 523 524 visit_type_str(v, name, &p, errp); 525 } 526 527 static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque, 528 Error **errp) 529 { 530 DeviceState *dev = DEVICE(obj); 531 Property *prop = opaque; 532 MACAddr *mac = qdev_get_prop_ptr(dev, prop); 533 Error *local_err = NULL; 534 int i, pos; 535 char *str, *p; 536 537 if (dev->realized) { 538 qdev_prop_set_after_realize(dev, name, errp); 539 return; 540 } 541 542 visit_type_str(v, name, &str, &local_err); 543 if (local_err) { 544 error_propagate(errp, local_err); 545 return; 546 } 547 548 for (i = 0, pos = 0; i < 6; i++, pos += 3) { 549 if (!qemu_isxdigit(str[pos])) { 550 goto inval; 551 } 552 if (!qemu_isxdigit(str[pos+1])) { 553 goto inval; 554 } 555 if (i == 5) { 556 if (str[pos+2] != '\0') { 557 goto inval; 558 } 559 } else { 560 if (str[pos+2] != ':' && str[pos+2] != '-') { 561 goto inval; 562 } 563 } 564 mac->a[i] = strtol(str+pos, &p, 16); 565 } 566 g_free(str); 567 return; 568 569 inval: 570 error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); 571 g_free(str); 572 } 573 574 const PropertyInfo qdev_prop_macaddr = { 575 .name = "str", 576 .description = "Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56", 577 .get = get_mac, 578 .set = set_mac, 579 }; 580 581 /* --- on/off/auto --- */ 582 583 const PropertyInfo qdev_prop_on_off_auto = { 584 .name = "OnOffAuto", 585 .description = "on/off/auto", 586 .enum_table = &OnOffAuto_lookup, 587 .get = get_enum, 588 .set = set_enum, 589 .set_default_value = set_default_value_enum, 590 }; 591 592 /* --- lost tick policy --- */ 593 594 QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int)); 595 596 const PropertyInfo qdev_prop_losttickpolicy = { 597 .name = "LostTickPolicy", 598 .enum_table = &LostTickPolicy_lookup, 599 .get = get_enum, 600 .set = set_enum, 601 .set_default_value = set_default_value_enum, 602 }; 603 604 /* --- Block device error handling policy --- */ 605 606 QEMU_BUILD_BUG_ON(sizeof(BlockdevOnError) != sizeof(int)); 607 608 const PropertyInfo qdev_prop_blockdev_on_error = { 609 .name = "BlockdevOnError", 610 .description = "Error handling policy, " 611 "report/ignore/enospc/stop/auto", 612 .enum_table = &BlockdevOnError_lookup, 613 .get = get_enum, 614 .set = set_enum, 615 .set_default_value = set_default_value_enum, 616 }; 617 618 /* --- BIOS CHS translation */ 619 620 QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int)); 621 622 const PropertyInfo qdev_prop_bios_chs_trans = { 623 .name = "BiosAtaTranslation", 624 .description = "Logical CHS translation algorithm, " 625 "auto/none/lba/large/rechs", 626 .enum_table = &BiosAtaTranslation_lookup, 627 .get = get_enum, 628 .set = set_enum, 629 .set_default_value = set_default_value_enum, 630 }; 631 632 /* --- FDC default drive types */ 633 634 const PropertyInfo qdev_prop_fdc_drive_type = { 635 .name = "FdcDriveType", 636 .description = "FDC drive type, " 637 "144/288/120/none/auto", 638 .enum_table = &FloppyDriveType_lookup, 639 .get = get_enum, 640 .set = set_enum, 641 .set_default_value = set_default_value_enum, 642 }; 643 644 /* --- pci address --- */ 645 646 /* 647 * bus-local address, i.e. "$slot" or "$slot.$fn" 648 */ 649 static void set_pci_devfn(Object *obj, Visitor *v, const char *name, 650 void *opaque, Error **errp) 651 { 652 DeviceState *dev = DEVICE(obj); 653 Property *prop = opaque; 654 int32_t value, *ptr = qdev_get_prop_ptr(dev, prop); 655 unsigned int slot, fn, n; 656 Error *local_err = NULL; 657 char *str; 658 659 if (dev->realized) { 660 qdev_prop_set_after_realize(dev, name, errp); 661 return; 662 } 663 664 visit_type_str(v, name, &str, &local_err); 665 if (local_err) { 666 error_free(local_err); 667 local_err = NULL; 668 visit_type_int32(v, name, &value, &local_err); 669 if (local_err) { 670 error_propagate(errp, local_err); 671 } else if (value < -1 || value > 255) { 672 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, 673 name ? name : "null", "pci_devfn"); 674 } else { 675 *ptr = value; 676 } 677 return; 678 } 679 680 if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { 681 fn = 0; 682 if (sscanf(str, "%x%n", &slot, &n) != 1) { 683 goto invalid; 684 } 685 } 686 if (str[n] != '\0' || fn > 7 || slot > 31) { 687 goto invalid; 688 } 689 *ptr = slot << 3 | fn; 690 g_free(str); 691 return; 692 693 invalid: 694 error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); 695 g_free(str); 696 } 697 698 static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, 699 size_t len) 700 { 701 int32_t *ptr = qdev_get_prop_ptr(dev, prop); 702 703 if (*ptr == -1) { 704 return snprintf(dest, len, "<unset>"); 705 } else { 706 return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); 707 } 708 } 709 710 const PropertyInfo qdev_prop_pci_devfn = { 711 .name = "int32", 712 .description = "Slot and optional function number, example: 06.0 or 06", 713 .print = print_pci_devfn, 714 .get = get_int32, 715 .set = set_pci_devfn, 716 .set_default_value = set_default_value_int, 717 }; 718 719 /* --- blocksize --- */ 720 721 static void set_blocksize(Object *obj, Visitor *v, const char *name, 722 void *opaque, Error **errp) 723 { 724 DeviceState *dev = DEVICE(obj); 725 Property *prop = opaque; 726 uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop); 727 Error *local_err = NULL; 728 const int64_t min = 512; 729 const int64_t max = 32768; 730 731 if (dev->realized) { 732 qdev_prop_set_after_realize(dev, name, errp); 733 return; 734 } 735 736 visit_type_uint16(v, name, &value, &local_err); 737 if (local_err) { 738 error_propagate(errp, local_err); 739 return; 740 } 741 /* value of 0 means "unset" */ 742 if (value && (value < min || value > max)) { 743 error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, 744 dev->id ? : "", name, (int64_t)value, min, max); 745 return; 746 } 747 748 /* We rely on power-of-2 blocksizes for bitmasks */ 749 if ((value & (value - 1)) != 0) { 750 error_setg(errp, 751 "Property %s.%s doesn't take value '%" PRId64 "', it's not a power of 2", 752 dev->id ?: "", name, (int64_t)value); 753 return; 754 } 755 756 *ptr = value; 757 } 758 759 const PropertyInfo qdev_prop_blocksize = { 760 .name = "uint16", 761 .description = "A power of two between 512 and 32768", 762 .get = get_uint16, 763 .set = set_blocksize, 764 .set_default_value = set_default_value_uint, 765 }; 766 767 /* --- pci host address --- */ 768 769 static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 770 void *opaque, Error **errp) 771 { 772 DeviceState *dev = DEVICE(obj); 773 Property *prop = opaque; 774 PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop); 775 char buffer[] = "ffff:ff:ff.f"; 776 char *p = buffer; 777 int rc = 0; 778 779 /* 780 * Catch "invalid" device reference from vfio-pci and allow the 781 * default buffer representing the non-existent device to be used. 782 */ 783 if (~addr->domain || ~addr->bus || ~addr->slot || ~addr->function) { 784 rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%0d", 785 addr->domain, addr->bus, addr->slot, addr->function); 786 assert(rc == sizeof(buffer) - 1); 787 } 788 789 visit_type_str(v, name, &p, errp); 790 } 791 792 /* 793 * Parse [<domain>:]<bus>:<slot>.<func> 794 * if <domain> is not supplied, it's assumed to be 0. 795 */ 796 static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 797 void *opaque, Error **errp) 798 { 799 DeviceState *dev = DEVICE(obj); 800 Property *prop = opaque; 801 PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop); 802 Error *local_err = NULL; 803 char *str, *p; 804 char *e; 805 unsigned long val; 806 unsigned long dom = 0, bus = 0; 807 unsigned int slot = 0, func = 0; 808 809 if (dev->realized) { 810 qdev_prop_set_after_realize(dev, name, errp); 811 return; 812 } 813 814 visit_type_str(v, name, &str, &local_err); 815 if (local_err) { 816 error_propagate(errp, local_err); 817 return; 818 } 819 820 p = str; 821 val = strtoul(p, &e, 16); 822 if (e == p || *e != ':') { 823 goto inval; 824 } 825 bus = val; 826 827 p = e + 1; 828 val = strtoul(p, &e, 16); 829 if (e == p) { 830 goto inval; 831 } 832 if (*e == ':') { 833 dom = bus; 834 bus = val; 835 p = e + 1; 836 val = strtoul(p, &e, 16); 837 if (e == p) { 838 goto inval; 839 } 840 } 841 slot = val; 842 843 if (*e != '.') { 844 goto inval; 845 } 846 p = e + 1; 847 val = strtoul(p, &e, 10); 848 if (e == p) { 849 goto inval; 850 } 851 func = val; 852 853 if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) { 854 goto inval; 855 } 856 857 if (*e) { 858 goto inval; 859 } 860 861 addr->domain = dom; 862 addr->bus = bus; 863 addr->slot = slot; 864 addr->function = func; 865 866 g_free(str); 867 return; 868 869 inval: 870 error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); 871 g_free(str); 872 } 873 874 const PropertyInfo qdev_prop_pci_host_devaddr = { 875 .name = "str", 876 .description = "Address (bus/device/function) of " 877 "the host device, example: 04:10.0", 878 .get = get_pci_host_devaddr, 879 .set = set_pci_host_devaddr, 880 }; 881 882 /* --- UUID --- */ 883 884 static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 885 Error **errp) 886 { 887 DeviceState *dev = DEVICE(obj); 888 Property *prop = opaque; 889 QemuUUID *uuid = qdev_get_prop_ptr(dev, prop); 890 char buffer[UUID_FMT_LEN + 1]; 891 char *p = buffer; 892 893 qemu_uuid_unparse(uuid, buffer); 894 895 visit_type_str(v, name, &p, errp); 896 } 897 898 #define UUID_VALUE_AUTO "auto" 899 900 static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 901 Error **errp) 902 { 903 DeviceState *dev = DEVICE(obj); 904 Property *prop = opaque; 905 QemuUUID *uuid = qdev_get_prop_ptr(dev, prop); 906 Error *local_err = NULL; 907 char *str; 908 909 if (dev->realized) { 910 qdev_prop_set_after_realize(dev, name, errp); 911 return; 912 } 913 914 visit_type_str(v, name, &str, &local_err); 915 if (local_err) { 916 error_propagate(errp, local_err); 917 return; 918 } 919 920 if (!strcmp(str, UUID_VALUE_AUTO)) { 921 qemu_uuid_generate(uuid); 922 } else if (qemu_uuid_parse(str, uuid) < 0) { 923 error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); 924 } 925 g_free(str); 926 } 927 928 static void set_default_uuid_auto(Object *obj, const Property *prop) 929 { 930 object_property_set_str(obj, UUID_VALUE_AUTO, prop->name, &error_abort); 931 } 932 933 const PropertyInfo qdev_prop_uuid = { 934 .name = "str", 935 .description = "UUID (aka GUID) or \"" UUID_VALUE_AUTO 936 "\" for random value (default)", 937 .get = get_uuid, 938 .set = set_uuid, 939 .set_default_value = set_default_uuid_auto, 940 }; 941 942 /* --- support for array properties --- */ 943 944 /* Used as an opaque for the object properties we add for each 945 * array element. Note that the struct Property must be first 946 * in the struct so that a pointer to this works as the opaque 947 * for the underlying element's property hooks as well as for 948 * our own release callback. 949 */ 950 typedef struct { 951 struct Property prop; 952 char *propname; 953 ObjectPropertyRelease *release; 954 } ArrayElementProperty; 955 956 /* object property release callback for array element properties: 957 * we call the underlying element's property release hook, and 958 * then free the memory we allocated when we added the property. 959 */ 960 static void array_element_release(Object *obj, const char *name, void *opaque) 961 { 962 ArrayElementProperty *p = opaque; 963 if (p->release) { 964 p->release(obj, name, opaque); 965 } 966 g_free(p->propname); 967 g_free(p); 968 } 969 970 static void set_prop_arraylen(Object *obj, Visitor *v, const char *name, 971 void *opaque, Error **errp) 972 { 973 /* Setter for the property which defines the length of a 974 * variable-sized property array. As well as actually setting the 975 * array-length field in the device struct, we have to create the 976 * array itself and dynamically add the corresponding properties. 977 */ 978 DeviceState *dev = DEVICE(obj); 979 Property *prop = opaque; 980 uint32_t *alenptr = qdev_get_prop_ptr(dev, prop); 981 void **arrayptr = (void *)dev + prop->arrayoffset; 982 Error *local_err = NULL; 983 void *eltptr; 984 const char *arrayname; 985 int i; 986 987 if (dev->realized) { 988 qdev_prop_set_after_realize(dev, name, errp); 989 return; 990 } 991 if (*alenptr) { 992 error_setg(errp, "array size property %s may not be set more than once", 993 name); 994 return; 995 } 996 visit_type_uint32(v, name, alenptr, &local_err); 997 if (local_err) { 998 error_propagate(errp, local_err); 999 return; 1000 } 1001 if (!*alenptr) { 1002 return; 1003 } 1004 1005 /* DEFINE_PROP_ARRAY guarantees that name should start with this prefix; 1006 * strip it off so we can get the name of the array itself. 1007 */ 1008 assert(strncmp(name, PROP_ARRAY_LEN_PREFIX, 1009 strlen(PROP_ARRAY_LEN_PREFIX)) == 0); 1010 arrayname = name + strlen(PROP_ARRAY_LEN_PREFIX); 1011 1012 /* Note that it is the responsibility of the individual device's deinit 1013 * to free the array proper. 1014 */ 1015 *arrayptr = eltptr = g_malloc0(*alenptr * prop->arrayfieldsize); 1016 for (i = 0; i < *alenptr; i++, eltptr += prop->arrayfieldsize) { 1017 char *propname = g_strdup_printf("%s[%d]", arrayname, i); 1018 ArrayElementProperty *arrayprop = g_new0(ArrayElementProperty, 1); 1019 arrayprop->release = prop->arrayinfo->release; 1020 arrayprop->propname = propname; 1021 arrayprop->prop.info = prop->arrayinfo; 1022 arrayprop->prop.name = propname; 1023 /* This ugly piece of pointer arithmetic sets up the offset so 1024 * that when the underlying get/set hooks call qdev_get_prop_ptr 1025 * they get the right answer despite the array element not actually 1026 * being inside the device struct. 1027 */ 1028 arrayprop->prop.offset = eltptr - (void *)dev; 1029 assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr); 1030 object_property_add(obj, propname, 1031 arrayprop->prop.info->name, 1032 arrayprop->prop.info->get, 1033 arrayprop->prop.info->set, 1034 array_element_release, 1035 arrayprop, &local_err); 1036 if (local_err) { 1037 error_propagate(errp, local_err); 1038 return; 1039 } 1040 } 1041 } 1042 1043 const PropertyInfo qdev_prop_arraylen = { 1044 .name = "uint32", 1045 .get = get_uint32, 1046 .set = set_prop_arraylen, 1047 .set_default_value = set_default_value_uint, 1048 }; 1049 1050 /* --- public helpers --- */ 1051 1052 static Property *qdev_prop_walk(Property *props, const char *name) 1053 { 1054 if (!props) { 1055 return NULL; 1056 } 1057 while (props->name) { 1058 if (strcmp(props->name, name) == 0) { 1059 return props; 1060 } 1061 props++; 1062 } 1063 return NULL; 1064 } 1065 1066 static Property *qdev_prop_find(DeviceState *dev, const char *name) 1067 { 1068 ObjectClass *class; 1069 Property *prop; 1070 1071 /* device properties */ 1072 class = object_get_class(OBJECT(dev)); 1073 do { 1074 prop = qdev_prop_walk(DEVICE_CLASS(class)->props, name); 1075 if (prop) { 1076 return prop; 1077 } 1078 class = object_class_get_parent(class); 1079 } while (class != object_class_by_name(TYPE_DEVICE)); 1080 1081 return NULL; 1082 } 1083 1084 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev, 1085 Property *prop, const char *value) 1086 { 1087 switch (ret) { 1088 case -EEXIST: 1089 error_setg(errp, "Property '%s.%s' can't take value '%s', it's in use", 1090 object_get_typename(OBJECT(dev)), prop->name, value); 1091 break; 1092 default: 1093 case -EINVAL: 1094 error_setg(errp, QERR_PROPERTY_VALUE_BAD, 1095 object_get_typename(OBJECT(dev)), prop->name, value); 1096 break; 1097 case -ENOENT: 1098 error_setg(errp, "Property '%s.%s' can't find value '%s'", 1099 object_get_typename(OBJECT(dev)), prop->name, value); 1100 break; 1101 case 0: 1102 break; 1103 } 1104 } 1105 1106 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value) 1107 { 1108 object_property_set_bool(OBJECT(dev), value, name, &error_abort); 1109 } 1110 1111 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value) 1112 { 1113 object_property_set_int(OBJECT(dev), value, name, &error_abort); 1114 } 1115 1116 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value) 1117 { 1118 object_property_set_int(OBJECT(dev), value, name, &error_abort); 1119 } 1120 1121 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value) 1122 { 1123 object_property_set_int(OBJECT(dev), value, name, &error_abort); 1124 } 1125 1126 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value) 1127 { 1128 object_property_set_int(OBJECT(dev), value, name, &error_abort); 1129 } 1130 1131 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value) 1132 { 1133 object_property_set_int(OBJECT(dev), value, name, &error_abort); 1134 } 1135 1136 void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value) 1137 { 1138 object_property_set_str(OBJECT(dev), value, name, &error_abort); 1139 } 1140 1141 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, 1142 const uint8_t *value) 1143 { 1144 char str[2 * 6 + 5 + 1]; 1145 snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x", 1146 value[0], value[1], value[2], value[3], value[4], value[5]); 1147 1148 object_property_set_str(OBJECT(dev), str, name, &error_abort); 1149 } 1150 1151 void qdev_prop_set_enum(DeviceState *dev, const char *name, int value) 1152 { 1153 Property *prop; 1154 1155 prop = qdev_prop_find(dev, name); 1156 object_property_set_str(OBJECT(dev), 1157 qapi_enum_lookup(prop->info->enum_table, value), 1158 name, &error_abort); 1159 } 1160 1161 static GPtrArray *global_props(void) 1162 { 1163 static GPtrArray *gp; 1164 1165 if (!gp) { 1166 gp = g_ptr_array_new(); 1167 } 1168 1169 return gp; 1170 } 1171 1172 void qdev_prop_register_global(GlobalProperty *prop) 1173 { 1174 g_ptr_array_add(global_props(), prop); 1175 } 1176 1177 int qdev_prop_check_globals(void) 1178 { 1179 int i, ret = 0; 1180 1181 for (i = 0; i < global_props()->len; i++) { 1182 GlobalProperty *prop; 1183 ObjectClass *oc; 1184 DeviceClass *dc; 1185 1186 prop = g_ptr_array_index(global_props(), i); 1187 if (prop->used) { 1188 continue; 1189 } 1190 oc = object_class_by_name(prop->driver); 1191 oc = object_class_dynamic_cast(oc, TYPE_DEVICE); 1192 if (!oc) { 1193 warn_report("global %s.%s has invalid class name", 1194 prop->driver, prop->property); 1195 ret = 1; 1196 continue; 1197 } 1198 dc = DEVICE_CLASS(oc); 1199 if (!dc->hotpluggable && !prop->used) { 1200 warn_report("global %s.%s=%s not used", 1201 prop->driver, prop->property, prop->value); 1202 ret = 1; 1203 continue; 1204 } 1205 } 1206 return ret; 1207 } 1208 1209 void qdev_prop_set_globals(DeviceState *dev) 1210 { 1211 object_apply_global_props(OBJECT(dev), global_props(), 1212 dev->hotplugged ? NULL : &error_fatal); 1213 } 1214 1215 /* --- 64bit unsigned int 'size' type --- */ 1216 1217 static void get_size(Object *obj, Visitor *v, const char *name, void *opaque, 1218 Error **errp) 1219 { 1220 DeviceState *dev = DEVICE(obj); 1221 Property *prop = opaque; 1222 uint64_t *ptr = qdev_get_prop_ptr(dev, prop); 1223 1224 visit_type_size(v, name, ptr, errp); 1225 } 1226 1227 static void set_size(Object *obj, Visitor *v, const char *name, void *opaque, 1228 Error **errp) 1229 { 1230 DeviceState *dev = DEVICE(obj); 1231 Property *prop = opaque; 1232 uint64_t *ptr = qdev_get_prop_ptr(dev, prop); 1233 1234 visit_type_size(v, name, ptr, errp); 1235 } 1236 1237 const PropertyInfo qdev_prop_size = { 1238 .name = "size", 1239 .get = get_size, 1240 .set = set_size, 1241 .set_default_value = set_default_value_uint, 1242 }; 1243 1244 /* --- object link property --- */ 1245 1246 static void create_link_property(Object *obj, Property *prop, Error **errp) 1247 { 1248 Object **child = qdev_get_prop_ptr(DEVICE(obj), prop); 1249 1250 object_property_add_link(obj, prop->name, prop->link_type, 1251 child, 1252 qdev_prop_allow_set_link_before_realize, 1253 OBJ_PROP_LINK_STRONG, 1254 errp); 1255 } 1256 1257 const PropertyInfo qdev_prop_link = { 1258 .name = "link", 1259 .create = create_link_property, 1260 }; 1261 1262 /* --- OffAutoPCIBAR off/auto/bar0/bar1/bar2/bar3/bar4/bar5 --- */ 1263 1264 const PropertyInfo qdev_prop_off_auto_pcibar = { 1265 .name = "OffAutoPCIBAR", 1266 .description = "off/auto/bar0/bar1/bar2/bar3/bar4/bar5", 1267 .enum_table = &OffAutoPCIBAR_lookup, 1268 .get = get_enum, 1269 .set = set_enum, 1270 .set_default_value = set_default_value_enum, 1271 }; 1272 1273 /* --- PCIELinkSpeed 2_5/5/8/16 -- */ 1274 1275 static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 1276 void *opaque, Error **errp) 1277 { 1278 DeviceState *dev = DEVICE(obj); 1279 Property *prop = opaque; 1280 PCIExpLinkSpeed *p = qdev_get_prop_ptr(dev, prop); 1281 int speed; 1282 1283 switch (*p) { 1284 case QEMU_PCI_EXP_LNK_2_5GT: 1285 speed = PCIE_LINK_SPEED_2_5; 1286 break; 1287 case QEMU_PCI_EXP_LNK_5GT: 1288 speed = PCIE_LINK_SPEED_5; 1289 break; 1290 case QEMU_PCI_EXP_LNK_8GT: 1291 speed = PCIE_LINK_SPEED_8; 1292 break; 1293 case QEMU_PCI_EXP_LNK_16GT: 1294 speed = PCIE_LINK_SPEED_16; 1295 break; 1296 default: 1297 /* Unreachable */ 1298 abort(); 1299 } 1300 1301 visit_type_enum(v, prop->name, &speed, prop->info->enum_table, errp); 1302 } 1303 1304 static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 1305 void *opaque, Error **errp) 1306 { 1307 DeviceState *dev = DEVICE(obj); 1308 Property *prop = opaque; 1309 PCIExpLinkSpeed *p = qdev_get_prop_ptr(dev, prop); 1310 int speed; 1311 Error *local_err = NULL; 1312 1313 if (dev->realized) { 1314 qdev_prop_set_after_realize(dev, name, errp); 1315 return; 1316 } 1317 1318 visit_type_enum(v, prop->name, &speed, prop->info->enum_table, &local_err); 1319 if (local_err) { 1320 error_propagate(errp, local_err); 1321 return; 1322 } 1323 1324 switch (speed) { 1325 case PCIE_LINK_SPEED_2_5: 1326 *p = QEMU_PCI_EXP_LNK_2_5GT; 1327 break; 1328 case PCIE_LINK_SPEED_5: 1329 *p = QEMU_PCI_EXP_LNK_5GT; 1330 break; 1331 case PCIE_LINK_SPEED_8: 1332 *p = QEMU_PCI_EXP_LNK_8GT; 1333 break; 1334 case PCIE_LINK_SPEED_16: 1335 *p = QEMU_PCI_EXP_LNK_16GT; 1336 break; 1337 default: 1338 /* Unreachable */ 1339 abort(); 1340 } 1341 } 1342 1343 const PropertyInfo qdev_prop_pcie_link_speed = { 1344 .name = "PCIELinkSpeed", 1345 .description = "2_5/5/8/16", 1346 .enum_table = &PCIELinkSpeed_lookup, 1347 .get = get_prop_pcielinkspeed, 1348 .set = set_prop_pcielinkspeed, 1349 .set_default_value = set_default_value_enum, 1350 }; 1351 1352 /* --- PCIELinkWidth 1/2/4/8/12/16/32 -- */ 1353 1354 static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1355 void *opaque, Error **errp) 1356 { 1357 DeviceState *dev = DEVICE(obj); 1358 Property *prop = opaque; 1359 PCIExpLinkWidth *p = qdev_get_prop_ptr(dev, prop); 1360 int width; 1361 1362 switch (*p) { 1363 case QEMU_PCI_EXP_LNK_X1: 1364 width = PCIE_LINK_WIDTH_1; 1365 break; 1366 case QEMU_PCI_EXP_LNK_X2: 1367 width = PCIE_LINK_WIDTH_2; 1368 break; 1369 case QEMU_PCI_EXP_LNK_X4: 1370 width = PCIE_LINK_WIDTH_4; 1371 break; 1372 case QEMU_PCI_EXP_LNK_X8: 1373 width = PCIE_LINK_WIDTH_8; 1374 break; 1375 case QEMU_PCI_EXP_LNK_X12: 1376 width = PCIE_LINK_WIDTH_12; 1377 break; 1378 case QEMU_PCI_EXP_LNK_X16: 1379 width = PCIE_LINK_WIDTH_16; 1380 break; 1381 case QEMU_PCI_EXP_LNK_X32: 1382 width = PCIE_LINK_WIDTH_32; 1383 break; 1384 default: 1385 /* Unreachable */ 1386 abort(); 1387 } 1388 1389 visit_type_enum(v, prop->name, &width, prop->info->enum_table, errp); 1390 } 1391 1392 static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1393 void *opaque, Error **errp) 1394 { 1395 DeviceState *dev = DEVICE(obj); 1396 Property *prop = opaque; 1397 PCIExpLinkWidth *p = qdev_get_prop_ptr(dev, prop); 1398 int width; 1399 Error *local_err = NULL; 1400 1401 if (dev->realized) { 1402 qdev_prop_set_after_realize(dev, name, errp); 1403 return; 1404 } 1405 1406 visit_type_enum(v, prop->name, &width, prop->info->enum_table, &local_err); 1407 if (local_err) { 1408 error_propagate(errp, local_err); 1409 return; 1410 } 1411 1412 switch (width) { 1413 case PCIE_LINK_WIDTH_1: 1414 *p = QEMU_PCI_EXP_LNK_X1; 1415 break; 1416 case PCIE_LINK_WIDTH_2: 1417 *p = QEMU_PCI_EXP_LNK_X2; 1418 break; 1419 case PCIE_LINK_WIDTH_4: 1420 *p = QEMU_PCI_EXP_LNK_X4; 1421 break; 1422 case PCIE_LINK_WIDTH_8: 1423 *p = QEMU_PCI_EXP_LNK_X8; 1424 break; 1425 case PCIE_LINK_WIDTH_12: 1426 *p = QEMU_PCI_EXP_LNK_X12; 1427 break; 1428 case PCIE_LINK_WIDTH_16: 1429 *p = QEMU_PCI_EXP_LNK_X16; 1430 break; 1431 case PCIE_LINK_WIDTH_32: 1432 *p = QEMU_PCI_EXP_LNK_X32; 1433 break; 1434 default: 1435 /* Unreachable */ 1436 abort(); 1437 } 1438 } 1439 1440 const PropertyInfo qdev_prop_pcie_link_width = { 1441 .name = "PCIELinkWidth", 1442 .description = "1/2/4/8/12/16/32", 1443 .enum_table = &PCIELinkWidth_lookup, 1444 .get = get_prop_pcielinkwidth, 1445 .set = set_prop_pcielinkwidth, 1446 .set_default_value = set_default_value_enum, 1447 }; 1448