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