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