1 /* 2 * qdev property parsing 3 * (parts specific for qemu-system-*) 4 * 5 * This file is based on code from hw/qdev-properties.c from 6 * commit 074a86fccd185616469dfcdc0e157f438aebba18, 7 * Copyright (c) Gerd Hoffmann <kraxel@redhat.com> and other contributors. 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "hw/qdev-properties.h" 15 #include "hw/qdev-properties-system.h" 16 #include "qapi/error.h" 17 #include "qapi/visitor.h" 18 #include "qapi/qapi-types-block.h" 19 #include "qapi/qapi-types-machine.h" 20 #include "qapi/qapi-types-migration.h" 21 #include "qapi/qapi-visit-virtio.h" 22 #include "qapi/qmp/qerror.h" 23 #include "qemu/ctype.h" 24 #include "qemu/cutils.h" 25 #include "qemu/units.h" 26 #include "qemu/uuid.h" 27 #include "qemu/error-report.h" 28 #include "qdev-prop-internal.h" 29 30 #include "audio/audio.h" 31 #include "chardev/char-fe.h" 32 #include "sysemu/block-backend.h" 33 #include "sysemu/blockdev.h" 34 #include "net/net.h" 35 #include "hw/pci/pci.h" 36 #include "hw/pci/pcie.h" 37 #include "hw/i386/x86.h" 38 #include "util/block-helpers.h" 39 40 static bool check_prop_still_unset(Object *obj, const char *name, 41 const void *old_val, const char *new_val, 42 bool allow_override, Error **errp) 43 { 44 const GlobalProperty *prop = qdev_find_global_prop(obj, name); 45 46 if (!old_val || (!prop && allow_override)) { 47 return true; 48 } 49 50 if (prop) { 51 error_setg(errp, "-global %s.%s=... conflicts with %s=%s", 52 prop->driver, prop->property, name, new_val); 53 } else { 54 /* Error message is vague, but a better one would be hard */ 55 error_setg(errp, "%s=%s conflicts, and override is not implemented", 56 name, new_val); 57 } 58 return false; 59 } 60 61 62 /* --- drive --- */ 63 64 static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque, 65 Error **errp) 66 { 67 Property *prop = opaque; 68 void **ptr = object_field_prop_ptr(obj, prop); 69 const char *value; 70 char *p; 71 72 if (*ptr) { 73 value = blk_name(*ptr); 74 if (!*value) { 75 BlockDriverState *bs = blk_bs(*ptr); 76 if (bs) { 77 value = bdrv_get_node_name(bs); 78 } 79 } 80 } else { 81 value = ""; 82 } 83 84 p = g_strdup(value); 85 visit_type_str(v, name, &p, errp); 86 g_free(p); 87 } 88 89 static void set_drive_helper(Object *obj, Visitor *v, const char *name, 90 void *opaque, bool iothread, Error **errp) 91 { 92 DeviceState *dev = DEVICE(obj); 93 Property *prop = opaque; 94 void **ptr = object_field_prop_ptr(obj, prop); 95 char *str; 96 BlockBackend *blk; 97 bool blk_created = false; 98 int ret; 99 BlockDriverState *bs; 100 AioContext *ctx; 101 102 if (!visit_type_str(v, name, &str, errp)) { 103 return; 104 } 105 106 if (!check_prop_still_unset(obj, name, *ptr, str, true, errp)) { 107 return; 108 } 109 110 if (*ptr) { 111 /* BlockBackend already exists. So, we want to change attached node */ 112 blk = *ptr; 113 ctx = blk_get_aio_context(blk); 114 bs = bdrv_lookup_bs(NULL, str, errp); 115 if (!bs) { 116 return; 117 } 118 119 if (ctx != bdrv_get_aio_context(bs)) { 120 error_setg(errp, "Different aio context is not supported for new " 121 "node"); 122 } 123 124 blk_replace_bs(blk, bs, errp); 125 return; 126 } 127 128 if (!*str) { 129 g_free(str); 130 *ptr = NULL; 131 return; 132 } 133 134 blk = blk_by_name(str); 135 if (!blk) { 136 bs = bdrv_lookup_bs(NULL, str, NULL); 137 if (bs) { 138 /* 139 * If the device supports iothreads, it will make sure to move the 140 * block node to the right AioContext if necessary (or fail if this 141 * isn't possible because of other users). Devices that are not 142 * aware of iothreads require their BlockBackends to be in the main 143 * AioContext. 144 */ 145 ctx = bdrv_get_aio_context(bs); 146 blk = blk_new(iothread ? ctx : qemu_get_aio_context(), 147 0, BLK_PERM_ALL); 148 blk_created = true; 149 150 ret = blk_insert_bs(blk, bs, errp); 151 if (ret < 0) { 152 goto fail; 153 } 154 } 155 } 156 if (!blk) { 157 error_setg(errp, "Property '%s.%s' can't find value '%s'", 158 object_get_typename(OBJECT(dev)), name, str); 159 goto fail; 160 } 161 if (blk_attach_dev(blk, dev) < 0) { 162 DriveInfo *dinfo = blk_legacy_dinfo(blk); 163 164 if (dinfo && dinfo->type != IF_NONE) { 165 error_setg(errp, "Drive '%s' is already in use because " 166 "it has been automatically connected to another " 167 "device (did you need 'if=none' in the drive options?)", 168 str); 169 } else { 170 error_setg(errp, "Drive '%s' is already in use by another device", 171 str); 172 } 173 goto fail; 174 } 175 176 *ptr = blk; 177 178 fail: 179 if (blk_created) { 180 /* If we need to keep a reference, blk_attach_dev() took it */ 181 blk_unref(blk); 182 } 183 184 g_free(str); 185 } 186 187 static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque, 188 Error **errp) 189 { 190 set_drive_helper(obj, v, name, opaque, false, errp); 191 } 192 193 static void set_drive_iothread(Object *obj, Visitor *v, const char *name, 194 void *opaque, Error **errp) 195 { 196 set_drive_helper(obj, v, name, opaque, true, errp); 197 } 198 199 static void release_drive(Object *obj, const char *name, void *opaque) 200 { 201 DeviceState *dev = DEVICE(obj); 202 Property *prop = opaque; 203 BlockBackend **ptr = object_field_prop_ptr(obj, prop); 204 205 if (*ptr) { 206 blockdev_auto_del(*ptr); 207 blk_detach_dev(*ptr, dev); 208 } 209 } 210 211 const PropertyInfo qdev_prop_drive = { 212 .name = "str", 213 .description = "Node name or ID of a block device to use as a backend", 214 .realized_set_allowed = true, 215 .get = get_drive, 216 .set = set_drive, 217 .release = release_drive, 218 }; 219 220 const PropertyInfo qdev_prop_drive_iothread = { 221 .name = "str", 222 .description = "Node name or ID of a block device to use as a backend", 223 .realized_set_allowed = true, 224 .get = get_drive, 225 .set = set_drive_iothread, 226 .release = release_drive, 227 }; 228 229 /* --- character device --- */ 230 231 static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque, 232 Error **errp) 233 { 234 CharBackend *be = object_field_prop_ptr(obj, opaque); 235 char *p; 236 237 p = g_strdup(be->chr && be->chr->label ? be->chr->label : ""); 238 visit_type_str(v, name, &p, errp); 239 g_free(p); 240 } 241 242 static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque, 243 Error **errp) 244 { 245 ERRP_GUARD(); 246 Property *prop = opaque; 247 CharBackend *be = object_field_prop_ptr(obj, prop); 248 Chardev *s; 249 char *str; 250 251 if (!visit_type_str(v, name, &str, errp)) { 252 return; 253 } 254 255 /* 256 * TODO Should this really be an error? If no, the old value 257 * needs to be released before we store the new one. 258 */ 259 if (!check_prop_still_unset(obj, name, be->chr, str, false, errp)) { 260 return; 261 } 262 263 if (!*str) { 264 g_free(str); 265 be->chr = NULL; 266 return; 267 } 268 269 s = qemu_chr_find(str); 270 if (s == NULL) { 271 error_setg(errp, "Property '%s.%s' can't find value '%s'", 272 object_get_typename(obj), name, str); 273 } else if (!qemu_chr_fe_init(be, s, errp)) { 274 error_prepend(errp, "Property '%s.%s' can't take value '%s': ", 275 object_get_typename(obj), name, str); 276 } 277 g_free(str); 278 } 279 280 static void release_chr(Object *obj, const char *name, void *opaque) 281 { 282 Property *prop = opaque; 283 CharBackend *be = object_field_prop_ptr(obj, prop); 284 285 qemu_chr_fe_deinit(be, false); 286 } 287 288 const PropertyInfo qdev_prop_chr = { 289 .name = "str", 290 .description = "ID of a chardev to use as a backend", 291 .get = get_chr, 292 .set = set_chr, 293 .release = release_chr, 294 }; 295 296 /* --- mac address --- */ 297 298 /* 299 * accepted syntax versions: 300 * 01:02:03:04:05:06 301 * 01-02-03-04-05-06 302 */ 303 static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque, 304 Error **errp) 305 { 306 Property *prop = opaque; 307 MACAddr *mac = object_field_prop_ptr(obj, prop); 308 char buffer[2 * 6 + 5 + 1]; 309 char *p = buffer; 310 311 snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x", 312 mac->a[0], mac->a[1], mac->a[2], 313 mac->a[3], mac->a[4], mac->a[5]); 314 315 visit_type_str(v, name, &p, errp); 316 } 317 318 static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque, 319 Error **errp) 320 { 321 Property *prop = opaque; 322 MACAddr *mac = object_field_prop_ptr(obj, prop); 323 int i, pos; 324 char *str; 325 const char *p; 326 327 if (!visit_type_str(v, name, &str, errp)) { 328 return; 329 } 330 331 for (i = 0, pos = 0; i < 6; i++, pos += 3) { 332 long val; 333 334 if (!qemu_isxdigit(str[pos])) { 335 goto inval; 336 } 337 if (!qemu_isxdigit(str[pos + 1])) { 338 goto inval; 339 } 340 if (i == 5) { 341 if (str[pos + 2] != '\0') { 342 goto inval; 343 } 344 } else { 345 if (str[pos + 2] != ':' && str[pos + 2] != '-') { 346 goto inval; 347 } 348 } 349 if (qemu_strtol(str + pos, &p, 16, &val) < 0 || val > 0xff) { 350 goto inval; 351 } 352 mac->a[i] = val; 353 } 354 g_free(str); 355 return; 356 357 inval: 358 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 359 g_free(str); 360 } 361 362 const PropertyInfo qdev_prop_macaddr = { 363 .name = "str", 364 .description = "Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56", 365 .get = get_mac, 366 .set = set_mac, 367 }; 368 369 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, 370 const uint8_t *value) 371 { 372 char str[2 * 6 + 5 + 1]; 373 snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x", 374 value[0], value[1], value[2], value[3], value[4], value[5]); 375 376 object_property_set_str(OBJECT(dev), name, str, &error_abort); 377 } 378 379 /* --- netdev device --- */ 380 static void get_netdev(Object *obj, Visitor *v, const char *name, 381 void *opaque, Error **errp) 382 { 383 Property *prop = opaque; 384 NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); 385 char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : ""); 386 387 visit_type_str(v, name, &p, errp); 388 g_free(p); 389 } 390 391 static void set_netdev(Object *obj, Visitor *v, const char *name, 392 void *opaque, Error **errp) 393 { 394 Property *prop = opaque; 395 NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); 396 NetClientState **ncs = peers_ptr->ncs; 397 NetClientState *peers[MAX_QUEUE_NUM]; 398 int queues, err = 0, i = 0; 399 char *str; 400 401 if (!visit_type_str(v, name, &str, errp)) { 402 return; 403 } 404 405 queues = qemu_find_net_clients_except(str, peers, 406 NET_CLIENT_DRIVER_NIC, 407 MAX_QUEUE_NUM); 408 if (queues == 0) { 409 err = -ENOENT; 410 goto out; 411 } 412 413 if (queues > MAX_QUEUE_NUM) { 414 error_setg(errp, "queues of backend '%s'(%d) exceeds QEMU limitation(%d)", 415 str, queues, MAX_QUEUE_NUM); 416 goto out; 417 } 418 419 for (i = 0; i < queues; i++) { 420 if (peers[i]->peer) { 421 err = -EEXIST; 422 goto out; 423 } 424 425 /* 426 * TODO Should this really be an error? If no, the old value 427 * needs to be released before we store the new one. 428 */ 429 if (!check_prop_still_unset(obj, name, ncs[i], str, false, errp)) { 430 goto out; 431 } 432 433 if (peers[i]->info->check_peer_type) { 434 if (!peers[i]->info->check_peer_type(peers[i], obj->class, errp)) { 435 goto out; 436 } 437 } 438 439 ncs[i] = peers[i]; 440 ncs[i]->queue_index = i; 441 } 442 443 peers_ptr->queues = queues; 444 445 out: 446 error_set_from_qdev_prop_error(errp, err, obj, prop->name, str); 447 g_free(str); 448 } 449 450 const PropertyInfo qdev_prop_netdev = { 451 .name = "str", 452 .description = "ID of a netdev to use as a backend", 453 .get = get_netdev, 454 .set = set_netdev, 455 }; 456 457 458 /* --- audiodev --- */ 459 static void get_audiodev(Object *obj, Visitor *v, const char* name, 460 void *opaque, Error **errp) 461 { 462 Property *prop = opaque; 463 QEMUSoundCard *card = object_field_prop_ptr(obj, prop); 464 char *p = g_strdup(audio_get_id(card)); 465 466 visit_type_str(v, name, &p, errp); 467 g_free(p); 468 } 469 470 static void set_audiodev(Object *obj, Visitor *v, const char* name, 471 void *opaque, Error **errp) 472 { 473 Property *prop = opaque; 474 QEMUSoundCard *card = object_field_prop_ptr(obj, prop); 475 AudioState *state; 476 g_autofree char *str = NULL; 477 478 if (!visit_type_str(v, name, &str, errp)) { 479 return; 480 } 481 482 state = audio_state_by_name(str, errp); 483 if (state) { 484 card->state = state; 485 } 486 } 487 488 const PropertyInfo qdev_prop_audiodev = { 489 .name = "str", 490 .description = "ID of an audiodev to use as a backend", 491 /* release done on shutdown */ 492 .get = get_audiodev, 493 .set = set_audiodev, 494 }; 495 496 bool qdev_prop_set_drive_err(DeviceState *dev, const char *name, 497 BlockBackend *value, Error **errp) 498 { 499 const char *ref = ""; 500 501 if (value) { 502 ref = blk_name(value); 503 if (!*ref) { 504 const BlockDriverState *bs = blk_bs(value); 505 if (bs) { 506 ref = bdrv_get_node_name(bs); 507 } 508 } 509 } 510 511 return object_property_set_str(OBJECT(dev), name, ref, errp); 512 } 513 514 void qdev_prop_set_drive(DeviceState *dev, const char *name, 515 BlockBackend *value) 516 { 517 qdev_prop_set_drive_err(dev, name, value, &error_abort); 518 } 519 520 void qdev_prop_set_chr(DeviceState *dev, const char *name, 521 Chardev *value) 522 { 523 assert(!value || value->label); 524 object_property_set_str(OBJECT(dev), name, value ? value->label : "", 525 &error_abort); 526 } 527 528 void qdev_prop_set_netdev(DeviceState *dev, const char *name, 529 NetClientState *value) 530 { 531 assert(!value || value->name); 532 object_property_set_str(OBJECT(dev), name, value ? value->name : "", 533 &error_abort); 534 } 535 536 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) 537 { 538 qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); 539 if (nd->netdev) { 540 qdev_prop_set_netdev(dev, "netdev", nd->netdev); 541 } 542 if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && 543 object_property_find(OBJECT(dev), "vectors")) { 544 qdev_prop_set_uint32(dev, "vectors", nd->nvectors); 545 } 546 nd->instantiated = 1; 547 } 548 549 /* --- lost tick policy --- */ 550 551 static void qdev_propinfo_set_losttickpolicy(Object *obj, Visitor *v, 552 const char *name, void *opaque, 553 Error **errp) 554 { 555 Property *prop = opaque; 556 int *ptr = object_field_prop_ptr(obj, prop); 557 int value; 558 559 if (!visit_type_enum(v, name, &value, prop->info->enum_table, errp)) { 560 return; 561 } 562 563 if (value == LOST_TICK_POLICY_SLEW) { 564 MachineState *ms = MACHINE(qdev_get_machine()); 565 566 if (!object_dynamic_cast(OBJECT(ms), TYPE_X86_MACHINE)) { 567 error_setg(errp, 568 "the 'slew' policy is only available for x86 machines"); 569 return; 570 } 571 } 572 573 *ptr = value; 574 } 575 576 QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int)); 577 578 const PropertyInfo qdev_prop_losttickpolicy = { 579 .name = "LostTickPolicy", 580 .enum_table = &LostTickPolicy_lookup, 581 .get = qdev_propinfo_get_enum, 582 .set = qdev_propinfo_set_losttickpolicy, 583 .set_default_value = qdev_propinfo_set_default_value_enum, 584 }; 585 586 /* --- blocksize --- */ 587 588 static void set_blocksize(Object *obj, Visitor *v, const char *name, 589 void *opaque, Error **errp) 590 { 591 DeviceState *dev = DEVICE(obj); 592 Property *prop = opaque; 593 uint32_t *ptr = object_field_prop_ptr(obj, prop); 594 uint64_t value; 595 Error *local_err = NULL; 596 597 if (!visit_type_size(v, name, &value, errp)) { 598 return; 599 } 600 check_block_size(dev->id ? : "", name, value, &local_err); 601 if (local_err) { 602 error_propagate(errp, local_err); 603 return; 604 } 605 *ptr = value; 606 } 607 608 const PropertyInfo qdev_prop_blocksize = { 609 .name = "size", 610 .description = "A power of two between " MIN_BLOCK_SIZE_STR 611 " and " MAX_BLOCK_SIZE_STR, 612 .get = qdev_propinfo_get_size32, 613 .set = set_blocksize, 614 .set_default_value = qdev_propinfo_set_default_value_uint, 615 }; 616 617 /* --- Block device error handling policy --- */ 618 619 QEMU_BUILD_BUG_ON(sizeof(BlockdevOnError) != sizeof(int)); 620 621 const PropertyInfo qdev_prop_blockdev_on_error = { 622 .name = "BlockdevOnError", 623 .description = "Error handling policy, " 624 "report/ignore/enospc/stop/auto", 625 .enum_table = &BlockdevOnError_lookup, 626 .get = qdev_propinfo_get_enum, 627 .set = qdev_propinfo_set_enum, 628 .set_default_value = qdev_propinfo_set_default_value_enum, 629 }; 630 631 /* --- BIOS CHS translation */ 632 633 QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int)); 634 635 const PropertyInfo qdev_prop_bios_chs_trans = { 636 .name = "BiosAtaTranslation", 637 .description = "Logical CHS translation algorithm, " 638 "auto/none/lba/large/rechs", 639 .enum_table = &BiosAtaTranslation_lookup, 640 .get = qdev_propinfo_get_enum, 641 .set = qdev_propinfo_set_enum, 642 .set_default_value = qdev_propinfo_set_default_value_enum, 643 }; 644 645 /* --- FDC default drive types */ 646 647 const PropertyInfo qdev_prop_fdc_drive_type = { 648 .name = "FdcDriveType", 649 .description = "FDC drive type, " 650 "144/288/120/none/auto", 651 .enum_table = &FloppyDriveType_lookup, 652 .get = qdev_propinfo_get_enum, 653 .set = qdev_propinfo_set_enum, 654 .set_default_value = qdev_propinfo_set_default_value_enum, 655 }; 656 657 /* --- MultiFDCompression --- */ 658 659 const PropertyInfo qdev_prop_multifd_compression = { 660 .name = "MultiFDCompression", 661 .description = "multifd_compression values, " 662 "none/zlib/zstd", 663 .enum_table = &MultiFDCompression_lookup, 664 .get = qdev_propinfo_get_enum, 665 .set = qdev_propinfo_set_enum, 666 .set_default_value = qdev_propinfo_set_default_value_enum, 667 }; 668 669 /* --- MigMode --- */ 670 671 QEMU_BUILD_BUG_ON(sizeof(MigMode) != sizeof(int)); 672 673 const PropertyInfo qdev_prop_mig_mode = { 674 .name = "MigMode", 675 .description = "mig_mode values, " 676 "normal,cpr-reboot", 677 .enum_table = &MigMode_lookup, 678 .get = qdev_propinfo_get_enum, 679 .set = qdev_propinfo_set_enum, 680 .set_default_value = qdev_propinfo_set_default_value_enum, 681 }; 682 683 /* --- GranuleMode --- */ 684 685 QEMU_BUILD_BUG_ON(sizeof(GranuleMode) != sizeof(int)); 686 687 const PropertyInfo qdev_prop_granule_mode = { 688 .name = "GranuleMode", 689 .description = "granule_mode values, " 690 "4k, 8k, 16k, 64k, host", 691 .enum_table = &GranuleMode_lookup, 692 .get = qdev_propinfo_get_enum, 693 .set = qdev_propinfo_set_enum, 694 .set_default_value = qdev_propinfo_set_default_value_enum, 695 }; 696 697 /* --- Reserved Region --- */ 698 699 /* 700 * Accepted syntax: 701 * <low address>:<high address>:<type> 702 * where low/high addresses are uint64_t in hexadecimal 703 * and type is a non-negative decimal integer 704 */ 705 static void get_reserved_region(Object *obj, Visitor *v, const char *name, 706 void *opaque, Error **errp) 707 { 708 Property *prop = opaque; 709 ReservedRegion *rr = object_field_prop_ptr(obj, prop); 710 char buffer[64]; 711 char *p = buffer; 712 int rc; 713 714 rc = snprintf(buffer, sizeof(buffer), "0x%"PRIx64":0x%"PRIx64":%u", 715 range_lob(&rr->range), range_upb(&rr->range), rr->type); 716 assert(rc < sizeof(buffer)); 717 718 visit_type_str(v, name, &p, errp); 719 } 720 721 static void set_reserved_region(Object *obj, Visitor *v, const char *name, 722 void *opaque, Error **errp) 723 { 724 Property *prop = opaque; 725 ReservedRegion *rr = object_field_prop_ptr(obj, prop); 726 const char *endptr; 727 uint64_t lob, upb; 728 char *str; 729 int ret; 730 731 if (!visit_type_str(v, name, &str, errp)) { 732 return; 733 } 734 735 ret = qemu_strtou64(str, &endptr, 16, &lob); 736 if (ret) { 737 error_setg(errp, "start address of '%s'" 738 " must be a hexadecimal integer", name); 739 goto out; 740 } 741 if (*endptr != ':') { 742 goto separator_error; 743 } 744 745 ret = qemu_strtou64(endptr + 1, &endptr, 16, &upb); 746 if (ret) { 747 error_setg(errp, "end address of '%s'" 748 " must be a hexadecimal integer", name); 749 goto out; 750 } 751 if (*endptr != ':') { 752 goto separator_error; 753 } 754 755 range_set_bounds(&rr->range, lob, upb); 756 757 ret = qemu_strtoui(endptr + 1, &endptr, 10, &rr->type); 758 if (ret) { 759 error_setg(errp, "type of '%s'" 760 " must be a non-negative decimal integer", name); 761 } 762 goto out; 763 764 separator_error: 765 error_setg(errp, "reserved region fields must be separated with ':'"); 766 out: 767 g_free(str); 768 return; 769 } 770 771 const PropertyInfo qdev_prop_reserved_region = { 772 .name = "reserved_region", 773 .description = "Reserved Region, example: 0xFEE00000:0xFEEFFFFF:0", 774 .get = get_reserved_region, 775 .set = set_reserved_region, 776 }; 777 778 /* --- pci address --- */ 779 780 /* 781 * bus-local address, i.e. "$slot" or "$slot.$fn" 782 */ 783 static void set_pci_devfn(Object *obj, Visitor *v, const char *name, 784 void *opaque, Error **errp) 785 { 786 Property *prop = opaque; 787 int32_t value, *ptr = object_field_prop_ptr(obj, prop); 788 unsigned int slot, fn, n; 789 char *str; 790 791 if (!visit_type_str(v, name, &str, NULL)) { 792 if (!visit_type_int32(v, name, &value, errp)) { 793 return; 794 } 795 if (value < -1 || value > 255) { 796 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, 797 name ? name : "null", "a value between -1 and 255"); 798 return; 799 } 800 *ptr = value; 801 return; 802 } 803 804 if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { 805 fn = 0; 806 if (sscanf(str, "%x%n", &slot, &n) != 1) { 807 goto invalid; 808 } 809 } 810 if (str[n] != '\0' || fn > 7 || slot > 31) { 811 goto invalid; 812 } 813 *ptr = slot << 3 | fn; 814 g_free(str); 815 return; 816 817 invalid: 818 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 819 g_free(str); 820 } 821 822 static int print_pci_devfn(Object *obj, Property *prop, char *dest, 823 size_t len) 824 { 825 int32_t *ptr = object_field_prop_ptr(obj, prop); 826 827 if (*ptr == -1) { 828 return snprintf(dest, len, "<unset>"); 829 } else { 830 return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); 831 } 832 } 833 834 const PropertyInfo qdev_prop_pci_devfn = { 835 .name = "int32", 836 .description = "Slot and optional function number, example: 06.0 or 06", 837 .print = print_pci_devfn, 838 .get = qdev_propinfo_get_int32, 839 .set = set_pci_devfn, 840 .set_default_value = qdev_propinfo_set_default_value_int, 841 }; 842 843 /* --- pci host address --- */ 844 845 static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 846 void *opaque, Error **errp) 847 { 848 Property *prop = opaque; 849 PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); 850 char buffer[] = "ffff:ff:ff.f"; 851 char *p = buffer; 852 int rc = 0; 853 854 /* 855 * Catch "invalid" device reference from vfio-pci and allow the 856 * default buffer representing the non-existent device to be used. 857 */ 858 if (~addr->domain || ~addr->bus || ~addr->slot || ~addr->function) { 859 rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%0d", 860 addr->domain, addr->bus, addr->slot, addr->function); 861 assert(rc == sizeof(buffer) - 1); 862 } 863 864 visit_type_str(v, name, &p, errp); 865 } 866 867 /* 868 * Parse [<domain>:]<bus>:<slot>.<func> 869 * if <domain> is not supplied, it's assumed to be 0. 870 */ 871 static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 872 void *opaque, Error **errp) 873 { 874 Property *prop = opaque; 875 PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); 876 char *str, *p; 877 char *e; 878 unsigned long val; 879 unsigned long dom = 0, bus = 0; 880 unsigned int slot = 0, func = 0; 881 882 if (!visit_type_str(v, name, &str, errp)) { 883 return; 884 } 885 886 p = str; 887 val = strtoul(p, &e, 16); 888 if (e == p || *e != ':') { 889 goto inval; 890 } 891 bus = val; 892 893 p = e + 1; 894 val = strtoul(p, &e, 16); 895 if (e == p) { 896 goto inval; 897 } 898 if (*e == ':') { 899 dom = bus; 900 bus = val; 901 p = e + 1; 902 val = strtoul(p, &e, 16); 903 if (e == p) { 904 goto inval; 905 } 906 } 907 slot = val; 908 909 if (*e != '.') { 910 goto inval; 911 } 912 p = e + 1; 913 val = strtoul(p, &e, 10); 914 if (e == p) { 915 goto inval; 916 } 917 func = val; 918 919 if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) { 920 goto inval; 921 } 922 923 if (*e) { 924 goto inval; 925 } 926 927 addr->domain = dom; 928 addr->bus = bus; 929 addr->slot = slot; 930 addr->function = func; 931 932 g_free(str); 933 return; 934 935 inval: 936 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 937 g_free(str); 938 } 939 940 const PropertyInfo qdev_prop_pci_host_devaddr = { 941 .name = "str", 942 .description = "Address (bus/device/function) of " 943 "the host device, example: 04:10.0", 944 .get = get_pci_host_devaddr, 945 .set = set_pci_host_devaddr, 946 }; 947 948 /* --- OffAutoPCIBAR off/auto/bar0/bar1/bar2/bar3/bar4/bar5 --- */ 949 950 const PropertyInfo qdev_prop_off_auto_pcibar = { 951 .name = "OffAutoPCIBAR", 952 .description = "off/auto/bar0/bar1/bar2/bar3/bar4/bar5", 953 .enum_table = &OffAutoPCIBAR_lookup, 954 .get = qdev_propinfo_get_enum, 955 .set = qdev_propinfo_set_enum, 956 .set_default_value = qdev_propinfo_set_default_value_enum, 957 }; 958 959 /* --- PCIELinkSpeed 2_5/5/8/16 -- */ 960 961 static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 962 void *opaque, Error **errp) 963 { 964 Property *prop = opaque; 965 PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); 966 int speed; 967 968 switch (*p) { 969 case QEMU_PCI_EXP_LNK_2_5GT: 970 speed = PCIE_LINK_SPEED_2_5; 971 break; 972 case QEMU_PCI_EXP_LNK_5GT: 973 speed = PCIE_LINK_SPEED_5; 974 break; 975 case QEMU_PCI_EXP_LNK_8GT: 976 speed = PCIE_LINK_SPEED_8; 977 break; 978 case QEMU_PCI_EXP_LNK_16GT: 979 speed = PCIE_LINK_SPEED_16; 980 break; 981 default: 982 /* Unreachable */ 983 abort(); 984 } 985 986 visit_type_enum(v, name, &speed, prop->info->enum_table, errp); 987 } 988 989 static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 990 void *opaque, Error **errp) 991 { 992 Property *prop = opaque; 993 PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); 994 int speed; 995 996 if (!visit_type_enum(v, name, &speed, prop->info->enum_table, 997 errp)) { 998 return; 999 } 1000 1001 switch (speed) { 1002 case PCIE_LINK_SPEED_2_5: 1003 *p = QEMU_PCI_EXP_LNK_2_5GT; 1004 break; 1005 case PCIE_LINK_SPEED_5: 1006 *p = QEMU_PCI_EXP_LNK_5GT; 1007 break; 1008 case PCIE_LINK_SPEED_8: 1009 *p = QEMU_PCI_EXP_LNK_8GT; 1010 break; 1011 case PCIE_LINK_SPEED_16: 1012 *p = QEMU_PCI_EXP_LNK_16GT; 1013 break; 1014 default: 1015 /* Unreachable */ 1016 abort(); 1017 } 1018 } 1019 1020 const PropertyInfo qdev_prop_pcie_link_speed = { 1021 .name = "PCIELinkSpeed", 1022 .description = "2_5/5/8/16", 1023 .enum_table = &PCIELinkSpeed_lookup, 1024 .get = get_prop_pcielinkspeed, 1025 .set = set_prop_pcielinkspeed, 1026 .set_default_value = qdev_propinfo_set_default_value_enum, 1027 }; 1028 1029 /* --- PCIELinkWidth 1/2/4/8/12/16/32 -- */ 1030 1031 static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1032 void *opaque, Error **errp) 1033 { 1034 Property *prop = opaque; 1035 PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); 1036 int width; 1037 1038 switch (*p) { 1039 case QEMU_PCI_EXP_LNK_X1: 1040 width = PCIE_LINK_WIDTH_1; 1041 break; 1042 case QEMU_PCI_EXP_LNK_X2: 1043 width = PCIE_LINK_WIDTH_2; 1044 break; 1045 case QEMU_PCI_EXP_LNK_X4: 1046 width = PCIE_LINK_WIDTH_4; 1047 break; 1048 case QEMU_PCI_EXP_LNK_X8: 1049 width = PCIE_LINK_WIDTH_8; 1050 break; 1051 case QEMU_PCI_EXP_LNK_X12: 1052 width = PCIE_LINK_WIDTH_12; 1053 break; 1054 case QEMU_PCI_EXP_LNK_X16: 1055 width = PCIE_LINK_WIDTH_16; 1056 break; 1057 case QEMU_PCI_EXP_LNK_X32: 1058 width = PCIE_LINK_WIDTH_32; 1059 break; 1060 default: 1061 /* Unreachable */ 1062 abort(); 1063 } 1064 1065 visit_type_enum(v, name, &width, prop->info->enum_table, errp); 1066 } 1067 1068 static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1069 void *opaque, Error **errp) 1070 { 1071 Property *prop = opaque; 1072 PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); 1073 int width; 1074 1075 if (!visit_type_enum(v, name, &width, prop->info->enum_table, 1076 errp)) { 1077 return; 1078 } 1079 1080 switch (width) { 1081 case PCIE_LINK_WIDTH_1: 1082 *p = QEMU_PCI_EXP_LNK_X1; 1083 break; 1084 case PCIE_LINK_WIDTH_2: 1085 *p = QEMU_PCI_EXP_LNK_X2; 1086 break; 1087 case PCIE_LINK_WIDTH_4: 1088 *p = QEMU_PCI_EXP_LNK_X4; 1089 break; 1090 case PCIE_LINK_WIDTH_8: 1091 *p = QEMU_PCI_EXP_LNK_X8; 1092 break; 1093 case PCIE_LINK_WIDTH_12: 1094 *p = QEMU_PCI_EXP_LNK_X12; 1095 break; 1096 case PCIE_LINK_WIDTH_16: 1097 *p = QEMU_PCI_EXP_LNK_X16; 1098 break; 1099 case PCIE_LINK_WIDTH_32: 1100 *p = QEMU_PCI_EXP_LNK_X32; 1101 break; 1102 default: 1103 /* Unreachable */ 1104 abort(); 1105 } 1106 } 1107 1108 const PropertyInfo qdev_prop_pcie_link_width = { 1109 .name = "PCIELinkWidth", 1110 .description = "1/2/4/8/12/16/32", 1111 .enum_table = &PCIELinkWidth_lookup, 1112 .get = get_prop_pcielinkwidth, 1113 .set = set_prop_pcielinkwidth, 1114 .set_default_value = qdev_propinfo_set_default_value_enum, 1115 }; 1116 1117 /* --- UUID --- */ 1118 1119 static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 1120 Error **errp) 1121 { 1122 Property *prop = opaque; 1123 QemuUUID *uuid = object_field_prop_ptr(obj, prop); 1124 char buffer[UUID_STR_LEN]; 1125 char *p = buffer; 1126 1127 qemu_uuid_unparse(uuid, buffer); 1128 1129 visit_type_str(v, name, &p, errp); 1130 } 1131 1132 #define UUID_VALUE_AUTO "auto" 1133 1134 static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 1135 Error **errp) 1136 { 1137 Property *prop = opaque; 1138 QemuUUID *uuid = object_field_prop_ptr(obj, prop); 1139 char *str; 1140 1141 if (!visit_type_str(v, name, &str, errp)) { 1142 return; 1143 } 1144 1145 if (!strcmp(str, UUID_VALUE_AUTO)) { 1146 qemu_uuid_generate(uuid); 1147 } else if (qemu_uuid_parse(str, uuid) < 0) { 1148 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 1149 } 1150 g_free(str); 1151 } 1152 1153 static void set_default_uuid_auto(ObjectProperty *op, const Property *prop) 1154 { 1155 object_property_set_default_str(op, UUID_VALUE_AUTO); 1156 } 1157 1158 const PropertyInfo qdev_prop_uuid = { 1159 .name = "str", 1160 .description = "UUID (aka GUID) or \"" UUID_VALUE_AUTO 1161 "\" for random value (default)", 1162 .get = get_uuid, 1163 .set = set_uuid, 1164 .set_default_value = set_default_uuid_auto, 1165 }; 1166 1167 /* --- s390 cpu entitlement policy --- */ 1168 1169 QEMU_BUILD_BUG_ON(sizeof(CpuS390Entitlement) != sizeof(int)); 1170 1171 const PropertyInfo qdev_prop_cpus390entitlement = { 1172 .name = "CpuS390Entitlement", 1173 .description = "low/medium (default)/high", 1174 .enum_table = &CpuS390Entitlement_lookup, 1175 .get = qdev_propinfo_get_enum, 1176 .set = qdev_propinfo_set_enum, 1177 .set_default_value = qdev_propinfo_set_default_value_enum, 1178 }; 1179 1180 /* --- IOThreadVirtQueueMappingList --- */ 1181 1182 static void get_iothread_vq_mapping_list(Object *obj, Visitor *v, 1183 const char *name, void *opaque, Error **errp) 1184 { 1185 IOThreadVirtQueueMappingList **prop_ptr = 1186 object_field_prop_ptr(obj, opaque); 1187 1188 visit_type_IOThreadVirtQueueMappingList(v, name, prop_ptr, errp); 1189 } 1190 1191 static void set_iothread_vq_mapping_list(Object *obj, Visitor *v, 1192 const char *name, void *opaque, Error **errp) 1193 { 1194 IOThreadVirtQueueMappingList **prop_ptr = 1195 object_field_prop_ptr(obj, opaque); 1196 IOThreadVirtQueueMappingList *list; 1197 1198 if (!visit_type_IOThreadVirtQueueMappingList(v, name, &list, errp)) { 1199 return; 1200 } 1201 1202 qapi_free_IOThreadVirtQueueMappingList(*prop_ptr); 1203 *prop_ptr = list; 1204 } 1205 1206 static void release_iothread_vq_mapping_list(Object *obj, 1207 const char *name, void *opaque) 1208 { 1209 IOThreadVirtQueueMappingList **prop_ptr = 1210 object_field_prop_ptr(obj, opaque); 1211 1212 qapi_free_IOThreadVirtQueueMappingList(*prop_ptr); 1213 *prop_ptr = NULL; 1214 } 1215 1216 const PropertyInfo qdev_prop_iothread_vq_mapping_list = { 1217 .name = "IOThreadVirtQueueMappingList", 1218 .description = "IOThread virtqueue mapping list [{\"iothread\":\"<id>\", " 1219 "\"vqs\":[1,2,3,...]},...]", 1220 .get = get_iothread_vq_mapping_list, 1221 .set = set_iothread_vq_mapping_list, 1222 .release = release_iothread_vq_mapping_list, 1223 }; 1224