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 "system/block-backend.h" 33 #include "system/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 bool qdev_prop_sanitize_s390x_loadparm(uint8_t *loadparm, const char *str, 62 Error **errp) 63 { 64 int i, len; 65 66 len = strlen(str); 67 if (len > 8) { 68 error_setg(errp, "'loadparm' can only contain up to 8 characters"); 69 return false; 70 } 71 72 for (i = 0; i < len; i++) { 73 uint8_t c = qemu_toupper(str[i]); /* mimic HMC */ 74 75 if (qemu_isalnum(c) || c == '.' || c == ' ') { 76 loadparm[i] = c; 77 } else { 78 error_setg(errp, 79 "invalid character in 'loadparm': '%c' (ASCII 0x%02x)", 80 c, c); 81 return false; 82 } 83 } 84 85 return true; 86 } 87 88 /* --- drive --- */ 89 90 static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque, 91 Error **errp) 92 { 93 const Property *prop = opaque; 94 void **ptr = object_field_prop_ptr(obj, prop); 95 const char *value; 96 char *p; 97 98 if (*ptr) { 99 value = blk_name(*ptr); 100 if (!*value) { 101 BlockDriverState *bs = blk_bs(*ptr); 102 if (bs) { 103 value = bdrv_get_node_name(bs); 104 } 105 } 106 } else { 107 value = ""; 108 } 109 110 p = g_strdup(value); 111 visit_type_str(v, name, &p, errp); 112 g_free(p); 113 } 114 115 static void set_drive_helper(Object *obj, Visitor *v, const char *name, 116 void *opaque, bool iothread, Error **errp) 117 { 118 DeviceState *dev = DEVICE(obj); 119 const Property *prop = opaque; 120 void **ptr = object_field_prop_ptr(obj, prop); 121 char *str; 122 BlockBackend *blk; 123 bool blk_created = false; 124 int ret; 125 BlockDriverState *bs; 126 AioContext *ctx; 127 128 if (!visit_type_str(v, name, &str, errp)) { 129 return; 130 } 131 132 if (!check_prop_still_unset(obj, name, *ptr, str, true, errp)) { 133 return; 134 } 135 136 if (*ptr) { 137 /* BlockBackend already exists. So, we want to change attached node */ 138 blk = *ptr; 139 ctx = blk_get_aio_context(blk); 140 bs = bdrv_lookup_bs(NULL, str, errp); 141 if (!bs) { 142 return; 143 } 144 145 if (ctx != bdrv_get_aio_context(bs)) { 146 error_setg(errp, "Different aio context is not supported for new " 147 "node"); 148 } 149 150 blk_replace_bs(blk, bs, errp); 151 return; 152 } 153 154 if (!*str) { 155 g_free(str); 156 *ptr = NULL; 157 return; 158 } 159 160 blk = blk_by_name(str); 161 if (!blk) { 162 bs = bdrv_lookup_bs(NULL, str, NULL); 163 if (bs) { 164 /* 165 * If the device supports iothreads, it will make sure to move the 166 * block node to the right AioContext if necessary (or fail if this 167 * isn't possible because of other users). Devices that are not 168 * aware of iothreads require their BlockBackends to be in the main 169 * AioContext. 170 */ 171 ctx = bdrv_get_aio_context(bs); 172 blk = blk_new(iothread ? ctx : qemu_get_aio_context(), 173 0, BLK_PERM_ALL); 174 blk_created = true; 175 176 ret = blk_insert_bs(blk, bs, errp); 177 if (ret < 0) { 178 goto fail; 179 } 180 } 181 } 182 if (!blk) { 183 error_setg(errp, "Property '%s.%s' can't find value '%s'", 184 object_get_typename(OBJECT(dev)), name, str); 185 goto fail; 186 } 187 if (blk_attach_dev(blk, dev) < 0) { 188 DriveInfo *dinfo = blk_legacy_dinfo(blk); 189 190 if (dinfo && dinfo->type != IF_NONE) { 191 error_setg(errp, "Drive '%s' is already in use because " 192 "it has been automatically connected to another " 193 "device (did you need 'if=none' in the drive options?)", 194 str); 195 } else { 196 error_setg(errp, "Drive '%s' is already in use by another device", 197 str); 198 } 199 goto fail; 200 } 201 202 *ptr = blk; 203 204 fail: 205 if (blk_created) { 206 /* If we need to keep a reference, blk_attach_dev() took it */ 207 blk_unref(blk); 208 } 209 210 g_free(str); 211 } 212 213 static void set_drive(Object *obj, Visitor *v, const char *name, void *opaque, 214 Error **errp) 215 { 216 set_drive_helper(obj, v, name, opaque, false, errp); 217 } 218 219 static void set_drive_iothread(Object *obj, Visitor *v, const char *name, 220 void *opaque, Error **errp) 221 { 222 set_drive_helper(obj, v, name, opaque, true, errp); 223 } 224 225 static void release_drive(Object *obj, const char *name, void *opaque) 226 { 227 DeviceState *dev = DEVICE(obj); 228 const Property *prop = opaque; 229 BlockBackend **ptr = object_field_prop_ptr(obj, prop); 230 231 if (*ptr) { 232 blockdev_auto_del(*ptr); 233 blk_detach_dev(*ptr, dev); 234 } 235 } 236 237 const PropertyInfo qdev_prop_drive = { 238 .type = "str", 239 .description = "Node name or ID of a block device to use as a backend", 240 .realized_set_allowed = true, 241 .get = get_drive, 242 .set = set_drive, 243 .release = release_drive, 244 }; 245 246 const PropertyInfo qdev_prop_drive_iothread = { 247 .type = "str", 248 .description = "Node name or ID of a block device to use as a backend", 249 .realized_set_allowed = true, 250 .get = get_drive, 251 .set = set_drive_iothread, 252 .release = release_drive, 253 }; 254 255 /* --- character device --- */ 256 257 static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque, 258 Error **errp) 259 { 260 CharBackend *be = object_field_prop_ptr(obj, opaque); 261 char *p; 262 263 p = g_strdup(be->chr && be->chr->label ? be->chr->label : ""); 264 visit_type_str(v, name, &p, errp); 265 g_free(p); 266 } 267 268 static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque, 269 Error **errp) 270 { 271 ERRP_GUARD(); 272 const Property *prop = opaque; 273 CharBackend *be = object_field_prop_ptr(obj, prop); 274 Chardev *s; 275 char *str; 276 277 if (!visit_type_str(v, name, &str, errp)) { 278 return; 279 } 280 281 /* 282 * TODO Should this really be an error? If no, the old value 283 * needs to be released before we store the new one. 284 */ 285 if (!check_prop_still_unset(obj, name, be->chr, str, false, errp)) { 286 return; 287 } 288 289 if (!*str) { 290 g_free(str); 291 be->chr = NULL; 292 return; 293 } 294 295 s = qemu_chr_find(str); 296 if (s == NULL) { 297 error_setg(errp, "Property '%s.%s' can't find value '%s'", 298 object_get_typename(obj), name, str); 299 } else if (!qemu_chr_fe_init(be, s, errp)) { 300 error_prepend(errp, "Property '%s.%s' can't take value '%s': ", 301 object_get_typename(obj), name, str); 302 } 303 g_free(str); 304 } 305 306 static void release_chr(Object *obj, const char *name, void *opaque) 307 { 308 const Property *prop = opaque; 309 CharBackend *be = object_field_prop_ptr(obj, prop); 310 311 qemu_chr_fe_deinit(be, false); 312 } 313 314 const PropertyInfo qdev_prop_chr = { 315 .type = "str", 316 .description = "ID of a chardev to use as a backend", 317 .get = get_chr, 318 .set = set_chr, 319 .release = release_chr, 320 }; 321 322 /* --- mac address --- */ 323 324 /* 325 * accepted syntax versions: 326 * 01:02:03:04:05:06 327 * 01-02-03-04-05-06 328 */ 329 static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque, 330 Error **errp) 331 { 332 const Property *prop = opaque; 333 MACAddr *mac = object_field_prop_ptr(obj, prop); 334 char buffer[2 * 6 + 5 + 1]; 335 char *p = buffer; 336 337 snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x", 338 mac->a[0], mac->a[1], mac->a[2], 339 mac->a[3], mac->a[4], mac->a[5]); 340 341 visit_type_str(v, name, &p, errp); 342 } 343 344 static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque, 345 Error **errp) 346 { 347 const Property *prop = opaque; 348 MACAddr *mac = object_field_prop_ptr(obj, prop); 349 int i, pos; 350 char *str; 351 const char *p; 352 353 if (!visit_type_str(v, name, &str, errp)) { 354 return; 355 } 356 357 for (i = 0, pos = 0; i < 6; i++, pos += 3) { 358 long val; 359 360 if (!qemu_isxdigit(str[pos])) { 361 goto inval; 362 } 363 if (!qemu_isxdigit(str[pos + 1])) { 364 goto inval; 365 } 366 if (i == 5) { 367 if (str[pos + 2] != '\0') { 368 goto inval; 369 } 370 } else { 371 if (str[pos + 2] != ':' && str[pos + 2] != '-') { 372 goto inval; 373 } 374 } 375 if (qemu_strtol(str + pos, &p, 16, &val) < 0 || val > 0xff) { 376 goto inval; 377 } 378 mac->a[i] = val; 379 } 380 g_free(str); 381 return; 382 383 inval: 384 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 385 g_free(str); 386 } 387 388 const PropertyInfo qdev_prop_macaddr = { 389 .type = "str", 390 .description = "Ethernet 6-byte MAC Address, example: 52:54:00:12:34:56", 391 .get = get_mac, 392 .set = set_mac, 393 }; 394 395 void qdev_prop_set_macaddr(DeviceState *dev, const char *name, 396 const uint8_t *value) 397 { 398 char str[2 * 6 + 5 + 1]; 399 snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x", 400 value[0], value[1], value[2], value[3], value[4], value[5]); 401 402 object_property_set_str(OBJECT(dev), name, str, &error_abort); 403 } 404 405 /* --- netdev device --- */ 406 static void get_netdev(Object *obj, Visitor *v, const char *name, 407 void *opaque, Error **errp) 408 { 409 const Property *prop = opaque; 410 NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); 411 char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : ""); 412 413 visit_type_str(v, name, &p, errp); 414 g_free(p); 415 } 416 417 static void set_netdev(Object *obj, Visitor *v, const char *name, 418 void *opaque, Error **errp) 419 { 420 const Property *prop = opaque; 421 NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); 422 NetClientState **ncs = peers_ptr->ncs; 423 NetClientState *peers[MAX_QUEUE_NUM]; 424 int queues, err = 0, i = 0; 425 char *str; 426 427 if (!visit_type_str(v, name, &str, errp)) { 428 return; 429 } 430 431 queues = qemu_find_net_clients_except(str, peers, 432 NET_CLIENT_DRIVER_NIC, 433 MAX_QUEUE_NUM); 434 if (queues == 0) { 435 err = -ENOENT; 436 goto out; 437 } 438 439 if (queues > MAX_QUEUE_NUM) { 440 error_setg(errp, "queues of backend '%s'(%d) exceeds QEMU limitation(%d)", 441 str, queues, MAX_QUEUE_NUM); 442 goto out; 443 } 444 445 for (i = 0; i < queues; i++) { 446 if (peers[i]->peer) { 447 err = -EEXIST; 448 goto out; 449 } 450 451 /* 452 * TODO Should this really be an error? If no, the old value 453 * needs to be released before we store the new one. 454 */ 455 if (!check_prop_still_unset(obj, name, ncs[i], str, false, errp)) { 456 goto out; 457 } 458 459 if (peers[i]->info->check_peer_type) { 460 if (!peers[i]->info->check_peer_type(peers[i], obj->class, errp)) { 461 goto out; 462 } 463 } 464 465 ncs[i] = peers[i]; 466 ncs[i]->queue_index = i; 467 } 468 469 peers_ptr->queues = queues; 470 471 out: 472 error_set_from_qdev_prop_error(errp, err, obj, prop->name, str); 473 g_free(str); 474 } 475 476 const PropertyInfo qdev_prop_netdev = { 477 .type = "str", 478 .description = "ID of a netdev to use as a backend", 479 .get = get_netdev, 480 .set = set_netdev, 481 }; 482 483 484 /* --- audiodev --- */ 485 static void get_audiodev(Object *obj, Visitor *v, const char* name, 486 void *opaque, Error **errp) 487 { 488 const Property *prop = opaque; 489 QEMUSoundCard *card = object_field_prop_ptr(obj, prop); 490 char *p = g_strdup(audio_get_id(card)); 491 492 visit_type_str(v, name, &p, errp); 493 g_free(p); 494 } 495 496 static void set_audiodev(Object *obj, Visitor *v, const char* name, 497 void *opaque, Error **errp) 498 { 499 const Property *prop = opaque; 500 QEMUSoundCard *card = object_field_prop_ptr(obj, prop); 501 AudioState *state; 502 g_autofree char *str = NULL; 503 504 if (!visit_type_str(v, name, &str, errp)) { 505 return; 506 } 507 508 state = audio_state_by_name(str, errp); 509 if (state) { 510 card->state = state; 511 } 512 } 513 514 const PropertyInfo qdev_prop_audiodev = { 515 .type = "str", 516 .description = "ID of an audiodev to use as a backend", 517 /* release done on shutdown */ 518 .get = get_audiodev, 519 .set = set_audiodev, 520 }; 521 522 bool qdev_prop_set_drive_err(DeviceState *dev, const char *name, 523 BlockBackend *value, Error **errp) 524 { 525 const char *ref = ""; 526 527 if (value) { 528 ref = blk_name(value); 529 if (!*ref) { 530 const BlockDriverState *bs = blk_bs(value); 531 if (bs) { 532 ref = bdrv_get_node_name(bs); 533 } 534 } 535 } 536 537 return object_property_set_str(OBJECT(dev), name, ref, errp); 538 } 539 540 void qdev_prop_set_drive(DeviceState *dev, const char *name, 541 BlockBackend *value) 542 { 543 qdev_prop_set_drive_err(dev, name, value, &error_abort); 544 } 545 546 void qdev_prop_set_chr(DeviceState *dev, const char *name, 547 Chardev *value) 548 { 549 assert(!value || value->label); 550 object_property_set_str(OBJECT(dev), name, value ? value->label : "", 551 &error_abort); 552 } 553 554 void qdev_prop_set_netdev(DeviceState *dev, const char *name, 555 NetClientState *value) 556 { 557 assert(!value || value->name); 558 object_property_set_str(OBJECT(dev), name, value ? value->name : "", 559 &error_abort); 560 } 561 562 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) 563 { 564 qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); 565 if (nd->netdev) { 566 qdev_prop_set_netdev(dev, "netdev", nd->netdev); 567 } 568 if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && 569 object_property_find(OBJECT(dev), "vectors")) { 570 qdev_prop_set_uint32(dev, "vectors", nd->nvectors); 571 } 572 nd->instantiated = 1; 573 } 574 575 /* --- lost tick policy --- */ 576 577 static void qdev_propinfo_set_losttickpolicy(Object *obj, Visitor *v, 578 const char *name, void *opaque, 579 Error **errp) 580 { 581 const Property *prop = opaque; 582 int *ptr = object_field_prop_ptr(obj, prop); 583 int value; 584 585 if (!visit_type_enum(v, name, &value, prop->info->enum_table, errp)) { 586 return; 587 } 588 589 if (value == LOST_TICK_POLICY_SLEW) { 590 MachineState *ms = MACHINE(qdev_get_machine()); 591 592 if (!object_dynamic_cast(OBJECT(ms), TYPE_X86_MACHINE)) { 593 error_setg(errp, 594 "the 'slew' policy is only available for x86 machines"); 595 return; 596 } 597 } 598 599 *ptr = value; 600 } 601 602 QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int)); 603 604 const PropertyInfo qdev_prop_losttickpolicy = { 605 .type = "LostTickPolicy", 606 .description = "Policy for handling lost ticks (discard/delay/slew)", 607 .enum_table = &LostTickPolicy_lookup, 608 .get = qdev_propinfo_get_enum, 609 .set = qdev_propinfo_set_losttickpolicy, 610 .set_default_value = qdev_propinfo_set_default_value_enum, 611 }; 612 613 /* --- blocksize --- */ 614 615 static void set_blocksize(Object *obj, Visitor *v, const char *name, 616 void *opaque, Error **errp) 617 { 618 const Property *prop = opaque; 619 uint32_t *ptr = object_field_prop_ptr(obj, prop); 620 uint64_t value; 621 622 if (!visit_type_size(v, name, &value, errp)) { 623 return; 624 } 625 if (!check_block_size(name, value, errp)) { 626 return; 627 } 628 *ptr = value; 629 } 630 631 const PropertyInfo qdev_prop_blocksize = { 632 .type = "size", 633 .description = "A power of two between " MIN_BLOCK_SIZE_STR 634 " and " MAX_BLOCK_SIZE_STR, 635 .get = qdev_propinfo_get_size32, 636 .set = set_blocksize, 637 .set_default_value = qdev_propinfo_set_default_value_uint, 638 }; 639 640 /* --- Block device error handling policy --- */ 641 642 QEMU_BUILD_BUG_ON(sizeof(BlockdevOnError) != sizeof(int)); 643 644 const PropertyInfo qdev_prop_blockdev_on_error = { 645 .type = "BlockdevOnError", 646 .description = "Error handling policy (report/ignore/enospc/stop/auto)", 647 .enum_table = &BlockdevOnError_lookup, 648 .get = qdev_propinfo_get_enum, 649 .set = qdev_propinfo_set_enum, 650 .set_default_value = qdev_propinfo_set_default_value_enum, 651 }; 652 653 /* --- BIOS CHS translation */ 654 655 QEMU_BUILD_BUG_ON(sizeof(BiosAtaTranslation) != sizeof(int)); 656 657 const PropertyInfo qdev_prop_bios_chs_trans = { 658 .type = "BiosAtaTranslation", 659 .description = "Logical CHS translation algorithm " 660 " (auto/none/lba/large/rechs)", 661 .enum_table = &BiosAtaTranslation_lookup, 662 .get = qdev_propinfo_get_enum, 663 .set = qdev_propinfo_set_enum, 664 .set_default_value = qdev_propinfo_set_default_value_enum, 665 }; 666 667 /* --- FDC default drive types */ 668 669 const PropertyInfo qdev_prop_fdc_drive_type = { 670 .type = "FloppyDriveType", 671 .description = "Floppy drive type (144/288/120/none/auto)", 672 .enum_table = &FloppyDriveType_lookup, 673 .get = qdev_propinfo_get_enum, 674 .set = qdev_propinfo_set_enum, 675 .set_default_value = qdev_propinfo_set_default_value_enum, 676 }; 677 678 /* --- MultiFDCompression --- */ 679 680 const PropertyInfo qdev_prop_multifd_compression = { 681 .type = "MultiFDCompression", 682 .description = "multifd_compression values" 683 " (none/zlib/zstd/qpl/uadk/qatzip)", 684 .enum_table = &MultiFDCompression_lookup, 685 .get = qdev_propinfo_get_enum, 686 .set = qdev_propinfo_set_enum, 687 .set_default_value = qdev_propinfo_set_default_value_enum, 688 }; 689 690 /* --- MigMode --- */ 691 692 QEMU_BUILD_BUG_ON(sizeof(MigMode) != sizeof(int)); 693 694 const PropertyInfo qdev_prop_mig_mode = { 695 .type = "MigMode", 696 .description = "Migration mode (normal/cpr-reboot)", 697 .enum_table = &MigMode_lookup, 698 .get = qdev_propinfo_get_enum, 699 .set = qdev_propinfo_set_enum, 700 .set_default_value = qdev_propinfo_set_default_value_enum, 701 }; 702 703 /* --- GranuleMode --- */ 704 705 QEMU_BUILD_BUG_ON(sizeof(GranuleMode) != sizeof(int)); 706 707 const PropertyInfo qdev_prop_granule_mode = { 708 .type = "GranuleMode", 709 .description = "Granule page size (4k/8k/16k/64k/host)", 710 .enum_table = &GranuleMode_lookup, 711 .get = qdev_propinfo_get_enum, 712 .set = qdev_propinfo_set_enum, 713 .set_default_value = qdev_propinfo_set_default_value_enum, 714 }; 715 716 const PropertyInfo qdev_prop_zero_page_detection = { 717 .type = "ZeroPageDetection", 718 .description = "Zero page detection (none/legacy/multifd)", 719 .enum_table = &ZeroPageDetection_lookup, 720 .get = qdev_propinfo_get_enum, 721 .set = qdev_propinfo_set_enum, 722 .set_default_value = qdev_propinfo_set_default_value_enum, 723 }; 724 725 /* --- Reserved Region --- */ 726 727 /* 728 * Accepted syntax: 729 * <low address>:<high address>:<type> 730 * where low/high addresses are uint64_t in hexadecimal 731 * and type is a non-negative decimal integer 732 */ 733 static void get_reserved_region(Object *obj, Visitor *v, const char *name, 734 void *opaque, Error **errp) 735 { 736 const Property *prop = opaque; 737 ReservedRegion *rr = object_field_prop_ptr(obj, prop); 738 char buffer[64]; 739 char *p = buffer; 740 int rc; 741 742 rc = snprintf(buffer, sizeof(buffer), "0x%"PRIx64":0x%"PRIx64":%u", 743 range_lob(&rr->range), range_upb(&rr->range), rr->type); 744 assert(rc < sizeof(buffer)); 745 746 visit_type_str(v, name, &p, errp); 747 } 748 749 static void set_reserved_region(Object *obj, Visitor *v, const char *name, 750 void *opaque, Error **errp) 751 { 752 const Property *prop = opaque; 753 ReservedRegion *rr = object_field_prop_ptr(obj, prop); 754 const char *endptr; 755 uint64_t lob, upb; 756 char *str; 757 int ret; 758 759 if (!visit_type_str(v, name, &str, errp)) { 760 return; 761 } 762 763 ret = qemu_strtou64(str, &endptr, 16, &lob); 764 if (ret) { 765 error_setg(errp, "start address of '%s'" 766 " must be a hexadecimal integer", name); 767 goto out; 768 } 769 if (*endptr != ':') { 770 goto separator_error; 771 } 772 773 ret = qemu_strtou64(endptr + 1, &endptr, 16, &upb); 774 if (ret) { 775 error_setg(errp, "end address of '%s'" 776 " must be a hexadecimal integer", name); 777 goto out; 778 } 779 if (*endptr != ':') { 780 goto separator_error; 781 } 782 783 range_set_bounds(&rr->range, lob, upb); 784 785 ret = qemu_strtoui(endptr + 1, &endptr, 10, &rr->type); 786 if (ret) { 787 error_setg(errp, "type of '%s'" 788 " must be a non-negative decimal integer", name); 789 } 790 goto out; 791 792 separator_error: 793 error_setg(errp, "reserved region fields must be separated with ':'"); 794 out: 795 g_free(str); 796 return; 797 } 798 799 const PropertyInfo qdev_prop_reserved_region = { 800 .type = "str", 801 .description = "Reserved Region, example: 0xFEE00000:0xFEEFFFFF:0", 802 .get = get_reserved_region, 803 .set = set_reserved_region, 804 }; 805 806 /* --- pci address --- */ 807 808 /* 809 * bus-local address, i.e. "$slot" or "$slot.$fn" 810 */ 811 static void set_pci_devfn(Object *obj, Visitor *v, const char *name, 812 void *opaque, Error **errp) 813 { 814 const Property *prop = opaque; 815 g_autofree GenericAlternate *alt; 816 int32_t value, *ptr = object_field_prop_ptr(obj, prop); 817 unsigned int slot, fn, n; 818 g_autofree char *str = NULL; 819 820 if (!visit_start_alternate(v, name, &alt, sizeof(*alt), errp)) { 821 return; 822 } 823 824 switch (alt->type) { 825 case QTYPE_QSTRING: 826 if (!visit_type_str(v, name, &str, errp)) { 827 goto out; 828 } 829 830 if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { 831 fn = 0; 832 if (sscanf(str, "%x%n", &slot, &n) != 1) { 833 goto invalid; 834 } 835 } 836 if (str[n] != '\0' || fn > 7 || slot > 31) { 837 goto invalid; 838 } 839 *ptr = slot << 3 | fn; 840 break; 841 842 case QTYPE_QNUM: 843 if (!visit_type_int32(v, name, &value, errp)) { 844 goto out; 845 } 846 if (value < -1 || value > 255) { 847 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, 848 name ? name : "null", "a value between -1 and 255"); 849 goto out; 850 } 851 *ptr = value; 852 break; 853 854 default: 855 error_setg(errp, "Invalid parameter type for '%s', expected int or str", 856 name ? name : "null"); 857 goto out; 858 } 859 860 goto out; 861 862 invalid: 863 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 864 out: 865 visit_end_alternate(v, (void **) &alt); 866 } 867 868 static int print_pci_devfn(Object *obj, const Property *prop, char *dest, 869 size_t len) 870 { 871 int32_t *ptr = object_field_prop_ptr(obj, prop); 872 873 if (*ptr == -1) { 874 return snprintf(dest, len, "<unset>"); 875 } else { 876 return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); 877 } 878 } 879 880 const PropertyInfo qdev_prop_pci_devfn = { 881 .type = "str", 882 .description = "Slot and optional function number, example: 06.0 or 06", 883 .print = print_pci_devfn, 884 .get = qdev_propinfo_get_int32, 885 .set = set_pci_devfn, 886 .set_default_value = qdev_propinfo_set_default_value_int, 887 }; 888 889 /* --- pci host address --- */ 890 891 static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 892 void *opaque, Error **errp) 893 { 894 const Property *prop = opaque; 895 PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); 896 char buffer[] = "ffff:ff:ff.f"; 897 char *p = buffer; 898 int rc = 0; 899 900 /* 901 * Catch "invalid" device reference from vfio-pci and allow the 902 * default buffer representing the non-existent device to be used. 903 */ 904 if (~addr->domain || ~addr->bus || ~addr->slot || ~addr->function) { 905 rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%0d", 906 addr->domain, addr->bus, addr->slot, addr->function); 907 assert(rc == sizeof(buffer) - 1); 908 } 909 910 visit_type_str(v, name, &p, errp); 911 } 912 913 /* 914 * Parse [<domain>:]<bus>:<slot>.<func> 915 * if <domain> is not supplied, it's assumed to be 0. 916 */ 917 static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name, 918 void *opaque, Error **errp) 919 { 920 const Property *prop = opaque; 921 PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); 922 char *str, *p; 923 char *e; 924 unsigned long val; 925 unsigned long dom = 0, bus = 0; 926 unsigned int slot = 0, func = 0; 927 928 if (!visit_type_str(v, name, &str, errp)) { 929 return; 930 } 931 932 p = str; 933 val = strtoul(p, &e, 16); 934 if (e == p || *e != ':') { 935 goto inval; 936 } 937 bus = val; 938 939 p = e + 1; 940 val = strtoul(p, &e, 16); 941 if (e == p) { 942 goto inval; 943 } 944 if (*e == ':') { 945 dom = bus; 946 bus = val; 947 p = e + 1; 948 val = strtoul(p, &e, 16); 949 if (e == p) { 950 goto inval; 951 } 952 } 953 slot = val; 954 955 if (*e != '.') { 956 goto inval; 957 } 958 p = e + 1; 959 val = strtoul(p, &e, 10); 960 if (e == p) { 961 goto inval; 962 } 963 func = val; 964 965 if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) { 966 goto inval; 967 } 968 969 if (*e) { 970 goto inval; 971 } 972 973 addr->domain = dom; 974 addr->bus = bus; 975 addr->slot = slot; 976 addr->function = func; 977 978 g_free(str); 979 return; 980 981 inval: 982 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 983 g_free(str); 984 } 985 986 const PropertyInfo qdev_prop_pci_host_devaddr = { 987 .type = "str", 988 .description = "Address (bus:device.function) of " 989 "the host device, example: 04:10.0", 990 .get = get_pci_host_devaddr, 991 .set = set_pci_host_devaddr, 992 }; 993 994 /* --- OffAutoPCIBAR off/auto/bar0/bar1/bar2/bar3/bar4/bar5 --- */ 995 996 const PropertyInfo qdev_prop_off_auto_pcibar = { 997 .type = "OffAutoPCIBAR", 998 .description = "off/auto/bar0/bar1/bar2/bar3/bar4/bar5", 999 .enum_table = &OffAutoPCIBAR_lookup, 1000 .get = qdev_propinfo_get_enum, 1001 .set = qdev_propinfo_set_enum, 1002 .set_default_value = qdev_propinfo_set_default_value_enum, 1003 }; 1004 1005 /* --- PCIELinkSpeed 2_5/5/8/16/32/64 -- */ 1006 1007 static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 1008 void *opaque, Error **errp) 1009 { 1010 const Property *prop = opaque; 1011 PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); 1012 int speed; 1013 1014 switch (*p) { 1015 case QEMU_PCI_EXP_LNK_2_5GT: 1016 speed = PCIE_LINK_SPEED_2_5; 1017 break; 1018 case QEMU_PCI_EXP_LNK_5GT: 1019 speed = PCIE_LINK_SPEED_5; 1020 break; 1021 case QEMU_PCI_EXP_LNK_8GT: 1022 speed = PCIE_LINK_SPEED_8; 1023 break; 1024 case QEMU_PCI_EXP_LNK_16GT: 1025 speed = PCIE_LINK_SPEED_16; 1026 break; 1027 case QEMU_PCI_EXP_LNK_32GT: 1028 speed = PCIE_LINK_SPEED_32; 1029 break; 1030 case QEMU_PCI_EXP_LNK_64GT: 1031 speed = PCIE_LINK_SPEED_64; 1032 break; 1033 default: 1034 /* Unreachable */ 1035 abort(); 1036 } 1037 1038 visit_type_enum(v, name, &speed, prop->info->enum_table, errp); 1039 } 1040 1041 static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, 1042 void *opaque, Error **errp) 1043 { 1044 const Property *prop = opaque; 1045 PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); 1046 int speed; 1047 1048 if (!visit_type_enum(v, name, &speed, prop->info->enum_table, 1049 errp)) { 1050 return; 1051 } 1052 1053 switch (speed) { 1054 case PCIE_LINK_SPEED_2_5: 1055 *p = QEMU_PCI_EXP_LNK_2_5GT; 1056 break; 1057 case PCIE_LINK_SPEED_5: 1058 *p = QEMU_PCI_EXP_LNK_5GT; 1059 break; 1060 case PCIE_LINK_SPEED_8: 1061 *p = QEMU_PCI_EXP_LNK_8GT; 1062 break; 1063 case PCIE_LINK_SPEED_16: 1064 *p = QEMU_PCI_EXP_LNK_16GT; 1065 break; 1066 case PCIE_LINK_SPEED_32: 1067 *p = QEMU_PCI_EXP_LNK_32GT; 1068 break; 1069 case PCIE_LINK_SPEED_64: 1070 *p = QEMU_PCI_EXP_LNK_64GT; 1071 break; 1072 default: 1073 /* Unreachable */ 1074 abort(); 1075 } 1076 } 1077 1078 const PropertyInfo qdev_prop_pcie_link_speed = { 1079 .type = "PCIELinkSpeed", 1080 .description = "2_5/5/8/16/32/64", 1081 .enum_table = &PCIELinkSpeed_lookup, 1082 .get = get_prop_pcielinkspeed, 1083 .set = set_prop_pcielinkspeed, 1084 .set_default_value = qdev_propinfo_set_default_value_enum, 1085 }; 1086 1087 /* --- PCIELinkWidth 1/2/4/8/12/16/32 -- */ 1088 1089 static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1090 void *opaque, Error **errp) 1091 { 1092 const Property *prop = opaque; 1093 PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); 1094 int width; 1095 1096 switch (*p) { 1097 case QEMU_PCI_EXP_LNK_X1: 1098 width = PCIE_LINK_WIDTH_1; 1099 break; 1100 case QEMU_PCI_EXP_LNK_X2: 1101 width = PCIE_LINK_WIDTH_2; 1102 break; 1103 case QEMU_PCI_EXP_LNK_X4: 1104 width = PCIE_LINK_WIDTH_4; 1105 break; 1106 case QEMU_PCI_EXP_LNK_X8: 1107 width = PCIE_LINK_WIDTH_8; 1108 break; 1109 case QEMU_PCI_EXP_LNK_X12: 1110 width = PCIE_LINK_WIDTH_12; 1111 break; 1112 case QEMU_PCI_EXP_LNK_X16: 1113 width = PCIE_LINK_WIDTH_16; 1114 break; 1115 case QEMU_PCI_EXP_LNK_X32: 1116 width = PCIE_LINK_WIDTH_32; 1117 break; 1118 default: 1119 /* Unreachable */ 1120 abort(); 1121 } 1122 1123 visit_type_enum(v, name, &width, prop->info->enum_table, errp); 1124 } 1125 1126 static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, 1127 void *opaque, Error **errp) 1128 { 1129 const Property *prop = opaque; 1130 PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); 1131 int width; 1132 1133 if (!visit_type_enum(v, name, &width, prop->info->enum_table, 1134 errp)) { 1135 return; 1136 } 1137 1138 switch (width) { 1139 case PCIE_LINK_WIDTH_1: 1140 *p = QEMU_PCI_EXP_LNK_X1; 1141 break; 1142 case PCIE_LINK_WIDTH_2: 1143 *p = QEMU_PCI_EXP_LNK_X2; 1144 break; 1145 case PCIE_LINK_WIDTH_4: 1146 *p = QEMU_PCI_EXP_LNK_X4; 1147 break; 1148 case PCIE_LINK_WIDTH_8: 1149 *p = QEMU_PCI_EXP_LNK_X8; 1150 break; 1151 case PCIE_LINK_WIDTH_12: 1152 *p = QEMU_PCI_EXP_LNK_X12; 1153 break; 1154 case PCIE_LINK_WIDTH_16: 1155 *p = QEMU_PCI_EXP_LNK_X16; 1156 break; 1157 case PCIE_LINK_WIDTH_32: 1158 *p = QEMU_PCI_EXP_LNK_X32; 1159 break; 1160 default: 1161 /* Unreachable */ 1162 abort(); 1163 } 1164 } 1165 1166 const PropertyInfo qdev_prop_pcie_link_width = { 1167 .type = "PCIELinkWidth", 1168 .description = "1/2/4/8/12/16/32", 1169 .enum_table = &PCIELinkWidth_lookup, 1170 .get = get_prop_pcielinkwidth, 1171 .set = set_prop_pcielinkwidth, 1172 .set_default_value = qdev_propinfo_set_default_value_enum, 1173 }; 1174 1175 /* --- UUID --- */ 1176 1177 static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 1178 Error **errp) 1179 { 1180 const Property *prop = opaque; 1181 QemuUUID *uuid = object_field_prop_ptr(obj, prop); 1182 char buffer[UUID_STR_LEN]; 1183 char *p = buffer; 1184 1185 qemu_uuid_unparse(uuid, buffer); 1186 1187 visit_type_str(v, name, &p, errp); 1188 } 1189 1190 #define UUID_VALUE_AUTO "auto" 1191 1192 static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque, 1193 Error **errp) 1194 { 1195 const Property *prop = opaque; 1196 QemuUUID *uuid = object_field_prop_ptr(obj, prop); 1197 char *str; 1198 1199 if (!visit_type_str(v, name, &str, errp)) { 1200 return; 1201 } 1202 1203 if (!strcmp(str, UUID_VALUE_AUTO)) { 1204 qemu_uuid_generate(uuid); 1205 } else if (qemu_uuid_parse(str, uuid) < 0) { 1206 error_set_from_qdev_prop_error(errp, EINVAL, obj, name, str); 1207 } 1208 g_free(str); 1209 } 1210 1211 static void set_default_uuid_auto(ObjectProperty *op, const Property *prop) 1212 { 1213 object_property_set_default_str(op, UUID_VALUE_AUTO); 1214 } 1215 1216 const PropertyInfo qdev_prop_uuid = { 1217 .type = "str", 1218 .description = "UUID (aka GUID) or \"" UUID_VALUE_AUTO 1219 "\" for random value (default)", 1220 .get = get_uuid, 1221 .set = set_uuid, 1222 .set_default_value = set_default_uuid_auto, 1223 }; 1224 1225 /* --- s390 cpu entitlement policy --- */ 1226 1227 QEMU_BUILD_BUG_ON(sizeof(S390CpuEntitlement) != sizeof(int)); 1228 1229 const PropertyInfo qdev_prop_cpus390entitlement = { 1230 .type = "S390CpuEntitlement", 1231 .description = "auto/low/medium/high (default medium)", 1232 .enum_table = &S390CpuEntitlement_lookup, 1233 .get = qdev_propinfo_get_enum, 1234 .set = qdev_propinfo_set_enum, 1235 .set_default_value = qdev_propinfo_set_default_value_enum, 1236 }; 1237 1238 /* --- IOThreadVirtQueueMappingList --- */ 1239 1240 static void get_iothread_vq_mapping_list(Object *obj, Visitor *v, 1241 const char *name, void *opaque, Error **errp) 1242 { 1243 IOThreadVirtQueueMappingList **prop_ptr = 1244 object_field_prop_ptr(obj, opaque); 1245 1246 visit_type_IOThreadVirtQueueMappingList(v, name, prop_ptr, errp); 1247 } 1248 1249 static void set_iothread_vq_mapping_list(Object *obj, Visitor *v, 1250 const char *name, void *opaque, Error **errp) 1251 { 1252 IOThreadVirtQueueMappingList **prop_ptr = 1253 object_field_prop_ptr(obj, opaque); 1254 IOThreadVirtQueueMappingList *list; 1255 1256 if (!visit_type_IOThreadVirtQueueMappingList(v, name, &list, errp)) { 1257 return; 1258 } 1259 1260 qapi_free_IOThreadVirtQueueMappingList(*prop_ptr); 1261 *prop_ptr = list; 1262 } 1263 1264 static void release_iothread_vq_mapping_list(Object *obj, 1265 const char *name, void *opaque) 1266 { 1267 IOThreadVirtQueueMappingList **prop_ptr = 1268 object_field_prop_ptr(obj, opaque); 1269 1270 qapi_free_IOThreadVirtQueueMappingList(*prop_ptr); 1271 *prop_ptr = NULL; 1272 } 1273 1274 const PropertyInfo qdev_prop_iothread_vq_mapping_list = { 1275 .type = "IOThreadVirtQueueMappingList", 1276 .description = "IOThread virtqueue mapping list [{\"iothread\":\"<id>\", " 1277 "\"vqs\":[1,2,3,...]},...]", 1278 .get = get_iothread_vq_mapping_list, 1279 .set = set_iothread_vq_mapping_list, 1280 .release = release_iothread_vq_mapping_list, 1281 }; 1282 1283 /* --- Endian modes */ 1284 1285 const PropertyInfo qdev_prop_endian_mode = { 1286 .type = "EndianMode", 1287 .description = "Endian mode, big/little/unspecified", 1288 .enum_table = &EndianMode_lookup, 1289 .get = qdev_propinfo_get_enum, 1290 .set = qdev_propinfo_set_enum, 1291 .set_default_value = qdev_propinfo_set_default_value_enum, 1292 }; 1293 1294 const PropertyInfo qdev_prop_vmapple_virtio_blk_variant = { 1295 .type = "VMAppleVirtioBlkVariant", 1296 .description = "unspecified/root/aux", 1297 .enum_table = &VMAppleVirtioBlkVariant_lookup, 1298 .get = qdev_propinfo_get_enum, 1299 .set = qdev_propinfo_set_enum, 1300 .set_default_value = qdev_propinfo_set_default_value_enum, 1301 }; 1302