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