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