1 /* 2 * SMBIOS Support 3 * 4 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. 5 * Copyright (C) 2013 Red Hat, Inc. 6 * 7 * Authors: 8 * Alex Williamson <alex.williamson@hp.com> 9 * Markus Armbruster <armbru@redhat.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2. See 12 * the COPYING file in the top-level directory. 13 * 14 * Contributions after 2012-01-13 are licensed under the terms of the 15 * GNU GPL, version 2 or (at your option) any later version. 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qemu/units.h" 20 #include "qapi/error.h" 21 #include "qemu/config-file.h" 22 #include "qemu/error-report.h" 23 #include "qemu/module.h" 24 #include "qemu/option.h" 25 #include "sysemu/sysemu.h" 26 #include "qemu/uuid.h" 27 #include "hw/firmware/smbios.h" 28 #include "hw/loader.h" 29 #include "hw/boards.h" 30 #include "smbios_build.h" 31 32 /* legacy structures and constants for <= 2.0 machines */ 33 struct smbios_header { 34 uint16_t length; 35 uint8_t type; 36 } QEMU_PACKED; 37 38 struct smbios_field { 39 struct smbios_header header; 40 uint8_t type; 41 uint16_t offset; 42 uint8_t data[]; 43 } QEMU_PACKED; 44 45 struct smbios_table { 46 struct smbios_header header; 47 uint8_t data[]; 48 } QEMU_PACKED; 49 50 #define SMBIOS_FIELD_ENTRY 0 51 #define SMBIOS_TABLE_ENTRY 1 52 53 static uint8_t *smbios_entries; 54 static size_t smbios_entries_len; 55 static bool smbios_legacy = true; 56 static bool smbios_uuid_encoded = true; 57 /* end: legacy structures & constants for <= 2.0 machines */ 58 59 60 uint8_t *smbios_tables; 61 size_t smbios_tables_len; 62 unsigned smbios_table_max; 63 unsigned smbios_table_cnt; 64 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21; 65 66 static SmbiosEntryPoint ep; 67 68 static int smbios_type4_count = 0; 69 static bool smbios_immutable; 70 static bool smbios_have_defaults; 71 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets; 72 73 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1); 74 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1); 75 76 static struct { 77 const char *vendor, *version, *date; 78 bool have_major_minor, uefi; 79 uint8_t major, minor; 80 } type0; 81 82 static struct { 83 const char *manufacturer, *product, *version, *serial, *sku, *family; 84 /* uuid is in qemu_uuid */ 85 } type1; 86 87 static struct { 88 const char *manufacturer, *product, *version, *serial, *asset, *location; 89 } type2; 90 91 static struct { 92 const char *manufacturer, *version, *serial, *asset, *sku; 93 } type3; 94 95 /* 96 * SVVP requires max_speed and current_speed to be set and not being 97 * 0 which counts as unknown (SMBIOS 3.1.0/Table 21). Set the 98 * default value to 2000MHz as we did before. 99 */ 100 #define DEFAULT_CPU_SPEED 2000 101 102 static struct { 103 const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part; 104 uint64_t max_speed; 105 uint64_t current_speed; 106 } type4 = { 107 .max_speed = DEFAULT_CPU_SPEED, 108 .current_speed = DEFAULT_CPU_SPEED 109 }; 110 111 static struct { 112 size_t nvalues; 113 char **values; 114 } type11; 115 116 static struct { 117 const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part; 118 uint16_t speed; 119 } type17; 120 121 static QemuOptsList qemu_smbios_opts = { 122 .name = "smbios", 123 .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), 124 .desc = { 125 /* 126 * no elements => accept any params 127 * validation will happen later 128 */ 129 { /* end of list */ } 130 } 131 }; 132 133 static const QemuOptDesc qemu_smbios_file_opts[] = { 134 { 135 .name = "file", 136 .type = QEMU_OPT_STRING, 137 .help = "binary file containing an SMBIOS element", 138 }, 139 { /* end of list */ } 140 }; 141 142 static const QemuOptDesc qemu_smbios_type0_opts[] = { 143 { 144 .name = "type", 145 .type = QEMU_OPT_NUMBER, 146 .help = "SMBIOS element type", 147 },{ 148 .name = "vendor", 149 .type = QEMU_OPT_STRING, 150 .help = "vendor name", 151 },{ 152 .name = "version", 153 .type = QEMU_OPT_STRING, 154 .help = "version number", 155 },{ 156 .name = "date", 157 .type = QEMU_OPT_STRING, 158 .help = "release date", 159 },{ 160 .name = "release", 161 .type = QEMU_OPT_STRING, 162 .help = "revision number", 163 },{ 164 .name = "uefi", 165 .type = QEMU_OPT_BOOL, 166 .help = "uefi support", 167 }, 168 { /* end of list */ } 169 }; 170 171 static const QemuOptDesc qemu_smbios_type1_opts[] = { 172 { 173 .name = "type", 174 .type = QEMU_OPT_NUMBER, 175 .help = "SMBIOS element type", 176 },{ 177 .name = "manufacturer", 178 .type = QEMU_OPT_STRING, 179 .help = "manufacturer name", 180 },{ 181 .name = "product", 182 .type = QEMU_OPT_STRING, 183 .help = "product name", 184 },{ 185 .name = "version", 186 .type = QEMU_OPT_STRING, 187 .help = "version number", 188 },{ 189 .name = "serial", 190 .type = QEMU_OPT_STRING, 191 .help = "serial number", 192 },{ 193 .name = "uuid", 194 .type = QEMU_OPT_STRING, 195 .help = "UUID", 196 },{ 197 .name = "sku", 198 .type = QEMU_OPT_STRING, 199 .help = "SKU number", 200 },{ 201 .name = "family", 202 .type = QEMU_OPT_STRING, 203 .help = "family name", 204 }, 205 { /* end of list */ } 206 }; 207 208 static const QemuOptDesc qemu_smbios_type2_opts[] = { 209 { 210 .name = "type", 211 .type = QEMU_OPT_NUMBER, 212 .help = "SMBIOS element type", 213 },{ 214 .name = "manufacturer", 215 .type = QEMU_OPT_STRING, 216 .help = "manufacturer name", 217 },{ 218 .name = "product", 219 .type = QEMU_OPT_STRING, 220 .help = "product name", 221 },{ 222 .name = "version", 223 .type = QEMU_OPT_STRING, 224 .help = "version number", 225 },{ 226 .name = "serial", 227 .type = QEMU_OPT_STRING, 228 .help = "serial number", 229 },{ 230 .name = "asset", 231 .type = QEMU_OPT_STRING, 232 .help = "asset tag number", 233 },{ 234 .name = "location", 235 .type = QEMU_OPT_STRING, 236 .help = "location in chassis", 237 }, 238 { /* end of list */ } 239 }; 240 241 static const QemuOptDesc qemu_smbios_type3_opts[] = { 242 { 243 .name = "type", 244 .type = QEMU_OPT_NUMBER, 245 .help = "SMBIOS element type", 246 },{ 247 .name = "manufacturer", 248 .type = QEMU_OPT_STRING, 249 .help = "manufacturer name", 250 },{ 251 .name = "version", 252 .type = QEMU_OPT_STRING, 253 .help = "version number", 254 },{ 255 .name = "serial", 256 .type = QEMU_OPT_STRING, 257 .help = "serial number", 258 },{ 259 .name = "asset", 260 .type = QEMU_OPT_STRING, 261 .help = "asset tag number", 262 },{ 263 .name = "sku", 264 .type = QEMU_OPT_STRING, 265 .help = "SKU number", 266 }, 267 { /* end of list */ } 268 }; 269 270 static const QemuOptDesc qemu_smbios_type4_opts[] = { 271 { 272 .name = "type", 273 .type = QEMU_OPT_NUMBER, 274 .help = "SMBIOS element type", 275 },{ 276 .name = "sock_pfx", 277 .type = QEMU_OPT_STRING, 278 .help = "socket designation string prefix", 279 },{ 280 .name = "manufacturer", 281 .type = QEMU_OPT_STRING, 282 .help = "manufacturer name", 283 },{ 284 .name = "version", 285 .type = QEMU_OPT_STRING, 286 .help = "version number", 287 },{ 288 .name = "max-speed", 289 .type = QEMU_OPT_NUMBER, 290 .help = "max speed in MHz", 291 },{ 292 .name = "current-speed", 293 .type = QEMU_OPT_NUMBER, 294 .help = "speed at system boot in MHz", 295 },{ 296 .name = "serial", 297 .type = QEMU_OPT_STRING, 298 .help = "serial number", 299 },{ 300 .name = "asset", 301 .type = QEMU_OPT_STRING, 302 .help = "asset tag number", 303 },{ 304 .name = "part", 305 .type = QEMU_OPT_STRING, 306 .help = "part number", 307 }, 308 { /* end of list */ } 309 }; 310 311 static const QemuOptDesc qemu_smbios_type11_opts[] = { 312 { 313 .name = "value", 314 .type = QEMU_OPT_STRING, 315 .help = "OEM string data", 316 }, 317 { 318 .name = "path", 319 .type = QEMU_OPT_STRING, 320 .help = "OEM string data from file", 321 }, 322 }; 323 324 static const QemuOptDesc qemu_smbios_type17_opts[] = { 325 { 326 .name = "type", 327 .type = QEMU_OPT_NUMBER, 328 .help = "SMBIOS element type", 329 },{ 330 .name = "loc_pfx", 331 .type = QEMU_OPT_STRING, 332 .help = "device locator string prefix", 333 },{ 334 .name = "bank", 335 .type = QEMU_OPT_STRING, 336 .help = "bank locator string", 337 },{ 338 .name = "manufacturer", 339 .type = QEMU_OPT_STRING, 340 .help = "manufacturer name", 341 },{ 342 .name = "serial", 343 .type = QEMU_OPT_STRING, 344 .help = "serial number", 345 },{ 346 .name = "asset", 347 .type = QEMU_OPT_STRING, 348 .help = "asset tag number", 349 },{ 350 .name = "part", 351 .type = QEMU_OPT_STRING, 352 .help = "part number", 353 },{ 354 .name = "speed", 355 .type = QEMU_OPT_NUMBER, 356 .help = "maximum capable speed", 357 }, 358 { /* end of list */ } 359 }; 360 361 static void smbios_register_config(void) 362 { 363 qemu_add_opts(&qemu_smbios_opts); 364 } 365 366 opts_init(smbios_register_config); 367 368 /* 369 * The SMBIOS 2.1 "structure table length" field in the 370 * entry point uses a 16-bit integer, so we're limited 371 * in total table size 372 */ 373 #define SMBIOS_21_MAX_TABLES_LEN 0xffff 374 375 static void smbios_validate_table(MachineState *ms) 376 { 377 uint32_t expect_t4_count = smbios_legacy ? 378 ms->smp.cpus : smbios_smp_sockets; 379 380 if (smbios_type4_count && smbios_type4_count != expect_t4_count) { 381 error_report("Expected %d SMBIOS Type 4 tables, got %d instead", 382 expect_t4_count, smbios_type4_count); 383 exit(1); 384 } 385 386 if (smbios_ep_type == SMBIOS_ENTRY_POINT_21 && 387 smbios_tables_len > SMBIOS_21_MAX_TABLES_LEN) { 388 error_report("SMBIOS 2.1 table length %zu exceeds %d", 389 smbios_tables_len, SMBIOS_21_MAX_TABLES_LEN); 390 exit(1); 391 } 392 } 393 394 395 /* legacy setup functions for <= 2.0 machines */ 396 static void smbios_add_field(int type, int offset, const void *data, size_t len) 397 { 398 struct smbios_field *field; 399 400 if (!smbios_entries) { 401 smbios_entries_len = sizeof(uint16_t); 402 smbios_entries = g_malloc0(smbios_entries_len); 403 } 404 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 405 sizeof(*field) + len); 406 field = (struct smbios_field *)(smbios_entries + smbios_entries_len); 407 field->header.type = SMBIOS_FIELD_ENTRY; 408 field->header.length = cpu_to_le16(sizeof(*field) + len); 409 410 field->type = type; 411 field->offset = cpu_to_le16(offset); 412 memcpy(field->data, data, len); 413 414 smbios_entries_len += sizeof(*field) + len; 415 (*(uint16_t *)smbios_entries) = 416 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 417 } 418 419 static void smbios_maybe_add_str(int type, int offset, const char *data) 420 { 421 if (data) { 422 smbios_add_field(type, offset, data, strlen(data) + 1); 423 } 424 } 425 426 static void smbios_build_type_0_fields(void) 427 { 428 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str), 429 type0.vendor); 430 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str), 431 type0.version); 432 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, 433 bios_release_date_str), 434 type0.date); 435 if (type0.have_major_minor) { 436 smbios_add_field(0, offsetof(struct smbios_type_0, 437 system_bios_major_release), 438 &type0.major, 1); 439 smbios_add_field(0, offsetof(struct smbios_type_0, 440 system_bios_minor_release), 441 &type0.minor, 1); 442 } 443 } 444 445 static void smbios_build_type_1_fields(void) 446 { 447 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str), 448 type1.manufacturer); 449 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str), 450 type1.product); 451 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str), 452 type1.version); 453 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str), 454 type1.serial); 455 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str), 456 type1.sku); 457 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str), 458 type1.family); 459 if (qemu_uuid_set) { 460 /* We don't encode the UUID in the "wire format" here because this 461 * function is for legacy mode and needs to keep the guest ABI, and 462 * because we don't know what's the SMBIOS version advertised by the 463 * BIOS. 464 */ 465 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 466 &qemu_uuid, 16); 467 } 468 } 469 470 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length) 471 { 472 if (!smbios_legacy) { 473 *length = 0; 474 return NULL; 475 } 476 477 if (!smbios_immutable) { 478 smbios_build_type_0_fields(); 479 smbios_build_type_1_fields(); 480 smbios_validate_table(ms); 481 smbios_immutable = true; 482 } 483 *length = smbios_entries_len; 484 return smbios_entries; 485 } 486 /* end: legacy setup functions for <= 2.0 machines */ 487 488 489 bool smbios_skip_table(uint8_t type, bool required_table) 490 { 491 if (test_bit(type, have_binfile_bitmap)) { 492 return true; /* user provided their own binary blob(s) */ 493 } 494 if (test_bit(type, have_fields_bitmap)) { 495 return false; /* user provided fields via command line */ 496 } 497 if (smbios_have_defaults && required_table) { 498 return false; /* we're building tables, and this one's required */ 499 } 500 return true; 501 } 502 503 static void smbios_build_type_0_table(void) 504 { 505 SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */ 506 507 SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor); 508 SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version); 509 510 t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */ 511 512 SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date); 513 514 t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */ 515 516 t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */ 517 t->bios_characteristics_extension_bytes[0] = 0; 518 t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */ 519 if (type0.uefi) { 520 t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */ 521 } 522 523 if (type0.have_major_minor) { 524 t->system_bios_major_release = type0.major; 525 t->system_bios_minor_release = type0.minor; 526 } else { 527 t->system_bios_major_release = 0; 528 t->system_bios_minor_release = 0; 529 } 530 531 /* hardcoded in SeaBIOS */ 532 t->embedded_controller_major_release = 0xFF; 533 t->embedded_controller_minor_release = 0xFF; 534 535 SMBIOS_BUILD_TABLE_POST; 536 } 537 538 /* Encode UUID from the big endian encoding described on RFC4122 to the wire 539 * format specified by SMBIOS version 2.6. 540 */ 541 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in) 542 { 543 memcpy(uuid, in, 16); 544 if (smbios_uuid_encoded) { 545 uuid->time_low = bswap32(uuid->time_low); 546 uuid->time_mid = bswap16(uuid->time_mid); 547 uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version); 548 } 549 } 550 551 static void smbios_build_type_1_table(void) 552 { 553 SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */ 554 555 SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer); 556 SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product); 557 SMBIOS_TABLE_SET_STR(1, version_str, type1.version); 558 SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial); 559 if (qemu_uuid_set) { 560 smbios_encode_uuid(&t->uuid, &qemu_uuid); 561 } else { 562 memset(&t->uuid, 0, 16); 563 } 564 t->wake_up_type = 0x06; /* power switch */ 565 SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku); 566 SMBIOS_TABLE_SET_STR(1, family_str, type1.family); 567 568 SMBIOS_BUILD_TABLE_POST; 569 } 570 571 static void smbios_build_type_2_table(void) 572 { 573 SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */ 574 575 SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer); 576 SMBIOS_TABLE_SET_STR(2, product_str, type2.product); 577 SMBIOS_TABLE_SET_STR(2, version_str, type2.version); 578 SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial); 579 SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset); 580 t->feature_flags = 0x01; /* Motherboard */ 581 SMBIOS_TABLE_SET_STR(2, location_str, type2.location); 582 t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */ 583 t->board_type = 0x0A; /* Motherboard */ 584 t->contained_element_count = 0; 585 586 SMBIOS_BUILD_TABLE_POST; 587 } 588 589 static void smbios_build_type_3_table(void) 590 { 591 SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */ 592 593 SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer); 594 t->type = 0x01; /* Other */ 595 SMBIOS_TABLE_SET_STR(3, version_str, type3.version); 596 SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial); 597 SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset); 598 t->boot_up_state = 0x03; /* Safe */ 599 t->power_supply_state = 0x03; /* Safe */ 600 t->thermal_state = 0x03; /* Safe */ 601 t->security_status = 0x02; /* Unknown */ 602 t->oem_defined = cpu_to_le32(0); 603 t->height = 0; 604 t->number_of_power_cords = 0; 605 t->contained_element_count = 0; 606 t->contained_element_record_length = 0; 607 SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku); 608 609 SMBIOS_BUILD_TABLE_POST; 610 } 611 612 static void smbios_build_type_4_table(MachineState *ms, unsigned instance) 613 { 614 char sock_str[128]; 615 616 SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */ 617 618 snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance); 619 SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str); 620 t->processor_type = 0x03; /* CPU */ 621 t->processor_family = 0x01; /* Other */ 622 SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer); 623 t->processor_id[0] = cpu_to_le32(smbios_cpuid_version); 624 t->processor_id[1] = cpu_to_le32(smbios_cpuid_features); 625 SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version); 626 t->voltage = 0; 627 t->external_clock = cpu_to_le16(0); /* Unknown */ 628 t->max_speed = cpu_to_le16(type4.max_speed); 629 t->current_speed = cpu_to_le16(type4.current_speed); 630 t->status = 0x41; /* Socket populated, CPU enabled */ 631 t->processor_upgrade = 0x01; /* Other */ 632 t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 633 t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 634 t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 635 SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial); 636 SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset); 637 SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part); 638 t->core_count = t->core_enabled = ms->smp.cores; 639 t->thread_count = ms->smp.threads; 640 t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ 641 t->processor_family2 = cpu_to_le16(0x01); /* Other */ 642 643 SMBIOS_BUILD_TABLE_POST; 644 smbios_type4_count++; 645 } 646 647 static void smbios_build_type_11_table(void) 648 { 649 char count_str[128]; 650 size_t i; 651 652 if (type11.nvalues == 0) { 653 return; 654 } 655 656 SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */ 657 658 snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues); 659 t->count = type11.nvalues; 660 661 for (i = 0; i < type11.nvalues; i++) { 662 SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]); 663 g_free(type11.values[i]); 664 type11.values[i] = NULL; 665 } 666 667 SMBIOS_BUILD_TABLE_POST; 668 } 669 670 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */ 671 672 static void smbios_build_type_16_table(unsigned dimm_cnt) 673 { 674 uint64_t size_kb; 675 676 SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */ 677 678 t->location = 0x01; /* Other */ 679 t->use = 0x03; /* System memory */ 680 t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */ 681 size_kb = QEMU_ALIGN_UP(current_machine->ram_size, KiB) / KiB; 682 if (size_kb < MAX_T16_STD_SZ) { 683 t->maximum_capacity = cpu_to_le32(size_kb); 684 t->extended_maximum_capacity = cpu_to_le64(0); 685 } else { 686 t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ); 687 t->extended_maximum_capacity = cpu_to_le64(current_machine->ram_size); 688 } 689 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 690 t->number_of_memory_devices = cpu_to_le16(dimm_cnt); 691 692 SMBIOS_BUILD_TABLE_POST; 693 } 694 695 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */ 696 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */ 697 698 static void smbios_build_type_17_table(unsigned instance, uint64_t size) 699 { 700 char loc_str[128]; 701 uint64_t size_mb; 702 703 SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */ 704 705 t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 706 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 707 t->total_width = cpu_to_le16(0xFFFF); /* Unknown */ 708 t->data_width = cpu_to_le16(0xFFFF); /* Unknown */ 709 size_mb = QEMU_ALIGN_UP(size, MiB) / MiB; 710 if (size_mb < MAX_T17_STD_SZ) { 711 t->size = cpu_to_le16(size_mb); 712 t->extended_size = cpu_to_le32(0); 713 } else { 714 assert(size_mb < MAX_T17_EXT_SZ); 715 t->size = cpu_to_le16(MAX_T17_STD_SZ); 716 t->extended_size = cpu_to_le32(size_mb); 717 } 718 t->form_factor = 0x09; /* DIMM */ 719 t->device_set = 0; /* Not in a set */ 720 snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance); 721 SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str); 722 SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank); 723 t->memory_type = 0x07; /* RAM */ 724 t->type_detail = cpu_to_le16(0x02); /* Other */ 725 t->speed = cpu_to_le16(type17.speed); 726 SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer); 727 SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial); 728 SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset); 729 SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part); 730 t->attributes = 0; /* Unknown */ 731 t->configured_clock_speed = t->speed; /* reuse value for max speed */ 732 t->minimum_voltage = cpu_to_le16(0); /* Unknown */ 733 t->maximum_voltage = cpu_to_le16(0); /* Unknown */ 734 t->configured_voltage = cpu_to_le16(0); /* Unknown */ 735 736 SMBIOS_BUILD_TABLE_POST; 737 } 738 739 static void smbios_build_type_19_table(unsigned instance, 740 uint64_t start, uint64_t size) 741 { 742 uint64_t end, start_kb, end_kb; 743 744 SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */ 745 746 end = start + size - 1; 747 assert(end > start); 748 start_kb = start / KiB; 749 end_kb = end / KiB; 750 if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) { 751 t->starting_address = cpu_to_le32(start_kb); 752 t->ending_address = cpu_to_le32(end_kb); 753 t->extended_starting_address = 754 t->extended_ending_address = cpu_to_le64(0); 755 } else { 756 t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX); 757 t->extended_starting_address = cpu_to_le64(start); 758 t->extended_ending_address = cpu_to_le64(end); 759 } 760 t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 761 t->partition_width = 1; /* One device per row */ 762 763 SMBIOS_BUILD_TABLE_POST; 764 } 765 766 static void smbios_build_type_32_table(void) 767 { 768 SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */ 769 770 memset(t->reserved, 0, 6); 771 t->boot_status = 0; /* No errors detected */ 772 773 SMBIOS_BUILD_TABLE_POST; 774 } 775 776 static void smbios_build_type_127_table(void) 777 { 778 SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */ 779 SMBIOS_BUILD_TABLE_POST; 780 } 781 782 void smbios_set_cpuid(uint32_t version, uint32_t features) 783 { 784 smbios_cpuid_version = version; 785 smbios_cpuid_features = features; 786 } 787 788 #define SMBIOS_SET_DEFAULT(field, value) \ 789 if (!field) { \ 790 field = value; \ 791 } 792 793 void smbios_set_defaults(const char *manufacturer, const char *product, 794 const char *version, bool legacy_mode, 795 bool uuid_encoded, SmbiosEntryPointType ep_type) 796 { 797 smbios_have_defaults = true; 798 smbios_legacy = legacy_mode; 799 smbios_uuid_encoded = uuid_encoded; 800 smbios_ep_type = ep_type; 801 802 /* drop unwanted version of command-line file blob(s) */ 803 if (smbios_legacy) { 804 g_free(smbios_tables); 805 /* in legacy mode, also complain if fields were given for types > 1 */ 806 if (find_next_bit(have_fields_bitmap, 807 SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) { 808 error_report("can't process fields for smbios " 809 "types > 1 on machine versions < 2.1!"); 810 exit(1); 811 } 812 } else { 813 g_free(smbios_entries); 814 } 815 816 SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer); 817 SMBIOS_SET_DEFAULT(type1.product, product); 818 SMBIOS_SET_DEFAULT(type1.version, version); 819 SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer); 820 SMBIOS_SET_DEFAULT(type2.product, product); 821 SMBIOS_SET_DEFAULT(type2.version, version); 822 SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer); 823 SMBIOS_SET_DEFAULT(type3.version, version); 824 SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU"); 825 SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer); 826 SMBIOS_SET_DEFAULT(type4.version, version); 827 SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM"); 828 SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer); 829 } 830 831 static void smbios_entry_point_setup(void) 832 { 833 switch (smbios_ep_type) { 834 case SMBIOS_ENTRY_POINT_21: 835 memcpy(ep.ep21.anchor_string, "_SM_", 4); 836 memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5); 837 ep.ep21.length = sizeof(struct smbios_21_entry_point); 838 ep.ep21.entry_point_revision = 0; /* formatted_area reserved */ 839 memset(ep.ep21.formatted_area, 0, 5); 840 841 /* compliant with smbios spec v2.8 */ 842 ep.ep21.smbios_major_version = 2; 843 ep.ep21.smbios_minor_version = 8; 844 ep.ep21.smbios_bcd_revision = 0x28; 845 846 /* set during table construction, but BIOS may override: */ 847 ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len); 848 ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max); 849 ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt); 850 851 /* BIOS must recalculate */ 852 ep.ep21.checksum = 0; 853 ep.ep21.intermediate_checksum = 0; 854 ep.ep21.structure_table_address = cpu_to_le32(0); 855 856 break; 857 case SMBIOS_ENTRY_POINT_30: 858 memcpy(ep.ep30.anchor_string, "_SM3_", 5); 859 ep.ep30.length = sizeof(struct smbios_30_entry_point); 860 ep.ep30.entry_point_revision = 1; 861 ep.ep30.reserved = 0; 862 863 /* compliant with smbios spec 3.0 */ 864 ep.ep30.smbios_major_version = 3; 865 ep.ep30.smbios_minor_version = 0; 866 ep.ep30.smbios_doc_rev = 0; 867 868 /* set during table construct, but BIOS might override */ 869 ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len); 870 871 /* BIOS must recalculate */ 872 ep.ep30.checksum = 0; 873 ep.ep30.structure_table_address = cpu_to_le64(0); 874 875 break; 876 default: 877 abort(); 878 break; 879 } 880 } 881 882 void smbios_get_tables(MachineState *ms, 883 const struct smbios_phys_mem_area *mem_array, 884 const unsigned int mem_array_size, 885 uint8_t **tables, size_t *tables_len, 886 uint8_t **anchor, size_t *anchor_len) 887 { 888 unsigned i, dimm_cnt; 889 890 if (smbios_legacy) { 891 *tables = *anchor = NULL; 892 *tables_len = *anchor_len = 0; 893 return; 894 } 895 896 if (!smbios_immutable) { 897 smbios_build_type_0_table(); 898 smbios_build_type_1_table(); 899 smbios_build_type_2_table(); 900 smbios_build_type_3_table(); 901 902 smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus, 903 ms->smp.cores * ms->smp.threads); 904 assert(smbios_smp_sockets >= 1); 905 906 for (i = 0; i < smbios_smp_sockets; i++) { 907 smbios_build_type_4_table(ms, i); 908 } 909 910 smbios_build_type_11_table(); 911 912 #define MAX_DIMM_SZ (16 * GiB) 913 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \ 914 : ((current_machine->ram_size - 1) % MAX_DIMM_SZ) + 1) 915 916 dimm_cnt = QEMU_ALIGN_UP(current_machine->ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ; 917 918 smbios_build_type_16_table(dimm_cnt); 919 920 for (i = 0; i < dimm_cnt; i++) { 921 smbios_build_type_17_table(i, GET_DIMM_SZ); 922 } 923 924 for (i = 0; i < mem_array_size; i++) { 925 smbios_build_type_19_table(i, mem_array[i].address, 926 mem_array[i].length); 927 } 928 929 smbios_build_type_32_table(); 930 smbios_build_type_38_table(); 931 smbios_build_type_127_table(); 932 933 smbios_validate_table(ms); 934 smbios_entry_point_setup(); 935 smbios_immutable = true; 936 } 937 938 /* return tables blob and entry point (anchor), and their sizes */ 939 *tables = smbios_tables; 940 *tables_len = smbios_tables_len; 941 *anchor = (uint8_t *)&ep; 942 943 /* calculate length based on anchor string */ 944 if (!strncmp((char *)&ep, "_SM_", 4)) { 945 *anchor_len = sizeof(struct smbios_21_entry_point); 946 } else if (!strncmp((char *)&ep, "_SM3_", 5)) { 947 *anchor_len = sizeof(struct smbios_30_entry_point); 948 } else { 949 abort(); 950 } 951 } 952 953 static void save_opt(const char **dest, QemuOpts *opts, const char *name) 954 { 955 const char *val = qemu_opt_get(opts, name); 956 957 if (val) { 958 *dest = val; 959 } 960 } 961 962 963 struct opt_list { 964 size_t *ndest; 965 char ***dest; 966 }; 967 968 static int save_opt_one(void *opaque, 969 const char *name, const char *value, 970 Error **errp) 971 { 972 struct opt_list *opt = opaque; 973 974 if (g_str_equal(name, "path")) { 975 g_autoptr(GByteArray) data = g_byte_array_new(); 976 g_autofree char *buf = g_new(char, 4096); 977 ssize_t ret; 978 int fd = qemu_open(value, O_RDONLY, errp); 979 if (fd < 0) { 980 return -1; 981 } 982 983 while (1) { 984 ret = read(fd, buf, 4096); 985 if (ret == 0) { 986 break; 987 } 988 if (ret < 0) { 989 error_setg(errp, "Unable to read from %s: %s", 990 value, strerror(errno)); 991 qemu_close(fd); 992 return -1; 993 } 994 if (memchr(buf, '\0', ret)) { 995 error_setg(errp, "NUL in OEM strings value in %s", value); 996 qemu_close(fd); 997 return -1; 998 } 999 g_byte_array_append(data, (guint8 *)buf, ret); 1000 } 1001 1002 qemu_close(fd); 1003 1004 *opt->dest = g_renew(char *, *opt->dest, (*opt->ndest) + 1); 1005 (*opt->dest)[*opt->ndest] = (char *)g_byte_array_free(data, FALSE); 1006 (*opt->ndest)++; 1007 data = NULL; 1008 } else if (g_str_equal(name, "value")) { 1009 *opt->dest = g_renew(char *, *opt->dest, (*opt->ndest) + 1); 1010 (*opt->dest)[*opt->ndest] = g_strdup(value); 1011 (*opt->ndest)++; 1012 } else if (!g_str_equal(name, "type")) { 1013 error_setg(errp, "Unexpected option %s", name); 1014 return -1; 1015 } 1016 1017 return 0; 1018 } 1019 1020 static bool save_opt_list(size_t *ndest, char ***dest, QemuOpts *opts, 1021 Error **errp) 1022 { 1023 struct opt_list opt = { 1024 ndest, dest, 1025 }; 1026 if (!qemu_opt_foreach(opts, save_opt_one, &opt, errp)) { 1027 return false; 1028 } 1029 return true; 1030 } 1031 1032 void smbios_entry_add(QemuOpts *opts, Error **errp) 1033 { 1034 const char *val; 1035 1036 assert(!smbios_immutable); 1037 1038 val = qemu_opt_get(opts, "file"); 1039 if (val) { 1040 struct smbios_structure_header *header; 1041 int size; 1042 struct smbios_table *table; /* legacy mode only */ 1043 1044 if (!qemu_opts_validate(opts, qemu_smbios_file_opts, errp)) { 1045 return; 1046 } 1047 1048 size = get_image_size(val); 1049 if (size == -1 || size < sizeof(struct smbios_structure_header)) { 1050 error_setg(errp, "Cannot read SMBIOS file %s", val); 1051 return; 1052 } 1053 1054 /* 1055 * NOTE: standard double '\0' terminator expected, per smbios spec. 1056 * (except in legacy mode, where the second '\0' is implicit and 1057 * will be inserted by the BIOS). 1058 */ 1059 smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size); 1060 header = (struct smbios_structure_header *)(smbios_tables + 1061 smbios_tables_len); 1062 1063 if (load_image_size(val, (uint8_t *)header, size) != size) { 1064 error_setg(errp, "Failed to load SMBIOS file %s", val); 1065 return; 1066 } 1067 1068 if (test_bit(header->type, have_fields_bitmap)) { 1069 error_setg(errp, 1070 "can't load type %d struct, fields already specified!", 1071 header->type); 1072 return; 1073 } 1074 set_bit(header->type, have_binfile_bitmap); 1075 1076 if (header->type == 4) { 1077 smbios_type4_count++; 1078 } 1079 1080 smbios_tables_len += size; 1081 if (size > smbios_table_max) { 1082 smbios_table_max = size; 1083 } 1084 smbios_table_cnt++; 1085 1086 /* add a copy of the newly loaded blob to legacy smbios_entries */ 1087 /* NOTE: This code runs before smbios_set_defaults(), so we don't 1088 * yet know which mode (legacy vs. aggregate-table) will be 1089 * required. We therefore add the binary blob to both legacy 1090 * (smbios_entries) and aggregate (smbios_tables) tables, and 1091 * delete the one we don't need from smbios_set_defaults(), 1092 * once we know which machine version has been requested. 1093 */ 1094 if (!smbios_entries) { 1095 smbios_entries_len = sizeof(uint16_t); 1096 smbios_entries = g_malloc0(smbios_entries_len); 1097 } 1098 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 1099 size + sizeof(*table)); 1100 table = (struct smbios_table *)(smbios_entries + smbios_entries_len); 1101 table->header.type = SMBIOS_TABLE_ENTRY; 1102 table->header.length = cpu_to_le16(sizeof(*table) + size); 1103 memcpy(table->data, header, size); 1104 smbios_entries_len += sizeof(*table) + size; 1105 (*(uint16_t *)smbios_entries) = 1106 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 1107 /* end: add a copy of the newly loaded blob to legacy smbios_entries */ 1108 1109 return; 1110 } 1111 1112 val = qemu_opt_get(opts, "type"); 1113 if (val) { 1114 unsigned long type = strtoul(val, NULL, 0); 1115 1116 if (type > SMBIOS_MAX_TYPE) { 1117 error_setg(errp, "out of range!"); 1118 return; 1119 } 1120 1121 if (test_bit(type, have_binfile_bitmap)) { 1122 error_setg(errp, "can't add fields, binary file already loaded!"); 1123 return; 1124 } 1125 set_bit(type, have_fields_bitmap); 1126 1127 switch (type) { 1128 case 0: 1129 if (!qemu_opts_validate(opts, qemu_smbios_type0_opts, errp)) { 1130 return; 1131 } 1132 save_opt(&type0.vendor, opts, "vendor"); 1133 save_opt(&type0.version, opts, "version"); 1134 save_opt(&type0.date, opts, "date"); 1135 type0.uefi = qemu_opt_get_bool(opts, "uefi", false); 1136 1137 val = qemu_opt_get(opts, "release"); 1138 if (val) { 1139 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { 1140 error_setg(errp, "Invalid release"); 1141 return; 1142 } 1143 type0.have_major_minor = true; 1144 } 1145 return; 1146 case 1: 1147 if (!qemu_opts_validate(opts, qemu_smbios_type1_opts, errp)) { 1148 return; 1149 } 1150 save_opt(&type1.manufacturer, opts, "manufacturer"); 1151 save_opt(&type1.product, opts, "product"); 1152 save_opt(&type1.version, opts, "version"); 1153 save_opt(&type1.serial, opts, "serial"); 1154 save_opt(&type1.sku, opts, "sku"); 1155 save_opt(&type1.family, opts, "family"); 1156 1157 val = qemu_opt_get(opts, "uuid"); 1158 if (val) { 1159 if (qemu_uuid_parse(val, &qemu_uuid) != 0) { 1160 error_setg(errp, "Invalid UUID"); 1161 return; 1162 } 1163 qemu_uuid_set = true; 1164 } 1165 return; 1166 case 2: 1167 if (!qemu_opts_validate(opts, qemu_smbios_type2_opts, errp)) { 1168 return; 1169 } 1170 save_opt(&type2.manufacturer, opts, "manufacturer"); 1171 save_opt(&type2.product, opts, "product"); 1172 save_opt(&type2.version, opts, "version"); 1173 save_opt(&type2.serial, opts, "serial"); 1174 save_opt(&type2.asset, opts, "asset"); 1175 save_opt(&type2.location, opts, "location"); 1176 return; 1177 case 3: 1178 if (!qemu_opts_validate(opts, qemu_smbios_type3_opts, errp)) { 1179 return; 1180 } 1181 save_opt(&type3.manufacturer, opts, "manufacturer"); 1182 save_opt(&type3.version, opts, "version"); 1183 save_opt(&type3.serial, opts, "serial"); 1184 save_opt(&type3.asset, opts, "asset"); 1185 save_opt(&type3.sku, opts, "sku"); 1186 return; 1187 case 4: 1188 if (!qemu_opts_validate(opts, qemu_smbios_type4_opts, errp)) { 1189 return; 1190 } 1191 save_opt(&type4.sock_pfx, opts, "sock_pfx"); 1192 save_opt(&type4.manufacturer, opts, "manufacturer"); 1193 save_opt(&type4.version, opts, "version"); 1194 save_opt(&type4.serial, opts, "serial"); 1195 save_opt(&type4.asset, opts, "asset"); 1196 save_opt(&type4.part, opts, "part"); 1197 type4.max_speed = qemu_opt_get_number(opts, "max-speed", 1198 DEFAULT_CPU_SPEED); 1199 type4.current_speed = qemu_opt_get_number(opts, "current-speed", 1200 DEFAULT_CPU_SPEED); 1201 if (type4.max_speed > UINT16_MAX || 1202 type4.current_speed > UINT16_MAX) { 1203 error_setg(errp, "SMBIOS CPU speed is too large (> %d)", 1204 UINT16_MAX); 1205 } 1206 return; 1207 case 11: 1208 if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) { 1209 return; 1210 } 1211 if (!save_opt_list(&type11.nvalues, &type11.values, opts, errp)) { 1212 return; 1213 } 1214 return; 1215 case 17: 1216 if (!qemu_opts_validate(opts, qemu_smbios_type17_opts, errp)) { 1217 return; 1218 } 1219 save_opt(&type17.loc_pfx, opts, "loc_pfx"); 1220 save_opt(&type17.bank, opts, "bank"); 1221 save_opt(&type17.manufacturer, opts, "manufacturer"); 1222 save_opt(&type17.serial, opts, "serial"); 1223 save_opt(&type17.asset, opts, "asset"); 1224 save_opt(&type17.part, opts, "part"); 1225 type17.speed = qemu_opt_get_number(opts, "speed", 0); 1226 return; 1227 default: 1228 error_setg(errp, 1229 "Don't know how to build fields for SMBIOS type %ld", 1230 type); 1231 return; 1232 } 1233 } 1234 1235 error_setg(errp, "Must specify type= or file="); 1236 } 1237