1 /* 2 * SMBIOS Support 3 * 4 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. 5 * Copyright (C) 2013 Red Hat, Inc. 6 * 7 * Authors: 8 * Alex Williamson <alex.williamson@hp.com> 9 * Markus Armbruster <armbru@redhat.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2. See 12 * the COPYING file in the top-level directory. 13 * 14 * Contributions after 2012-01-13 are licensed under the terms of the 15 * GNU GPL, version 2 or (at your option) any later version. 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qemu/units.h" 20 #include "qapi/error.h" 21 #include "qemu/config-file.h" 22 #include "qemu/error-report.h" 23 #include "qemu/module.h" 24 #include "qemu/option.h" 25 #include "sysemu/sysemu.h" 26 #include "qemu/uuid.h" 27 #include "hw/firmware/smbios.h" 28 #include "hw/loader.h" 29 #include "hw/boards.h" 30 #include "smbios_build.h" 31 32 /* legacy structures and constants for <= 2.0 machines */ 33 struct smbios_header { 34 uint16_t length; 35 uint8_t type; 36 } QEMU_PACKED; 37 38 struct smbios_field { 39 struct smbios_header header; 40 uint8_t type; 41 uint16_t offset; 42 uint8_t data[]; 43 } QEMU_PACKED; 44 45 struct smbios_table { 46 struct smbios_header header; 47 uint8_t data[]; 48 } QEMU_PACKED; 49 50 #define SMBIOS_FIELD_ENTRY 0 51 #define SMBIOS_TABLE_ENTRY 1 52 53 static uint8_t *smbios_entries; 54 static size_t smbios_entries_len; 55 static bool smbios_legacy = true; 56 static bool smbios_uuid_encoded = true; 57 /* end: legacy structures & constants for <= 2.0 machines */ 58 59 60 uint8_t *smbios_tables; 61 size_t smbios_tables_len; 62 unsigned smbios_table_max; 63 unsigned smbios_table_cnt; 64 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21; 65 66 static SmbiosEntryPoint ep; 67 68 static int smbios_type4_count = 0; 69 static bool smbios_immutable; 70 static bool smbios_have_defaults; 71 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets; 72 73 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1); 74 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1); 75 76 static struct { 77 const char *vendor, *version, *date; 78 bool have_major_minor, uefi; 79 uint8_t major, minor; 80 } type0; 81 82 static struct { 83 const char *manufacturer, *product, *version, *serial, *sku, *family; 84 /* uuid is in qemu_uuid */ 85 } type1; 86 87 static struct { 88 const char *manufacturer, *product, *version, *serial, *asset, *location; 89 } type2; 90 91 static struct { 92 const char *manufacturer, *version, *serial, *asset, *sku; 93 } type3; 94 95 static struct { 96 const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part; 97 } type4; 98 99 static struct { 100 size_t nvalues; 101 const char **values; 102 } type11; 103 104 static struct { 105 const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part; 106 uint16_t speed; 107 } type17; 108 109 static QemuOptsList qemu_smbios_opts = { 110 .name = "smbios", 111 .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), 112 .desc = { 113 /* 114 * no elements => accept any params 115 * validation will happen later 116 */ 117 { /* end of list */ } 118 } 119 }; 120 121 static const QemuOptDesc qemu_smbios_file_opts[] = { 122 { 123 .name = "file", 124 .type = QEMU_OPT_STRING, 125 .help = "binary file containing an SMBIOS element", 126 }, 127 { /* end of list */ } 128 }; 129 130 static const QemuOptDesc qemu_smbios_type0_opts[] = { 131 { 132 .name = "type", 133 .type = QEMU_OPT_NUMBER, 134 .help = "SMBIOS element type", 135 },{ 136 .name = "vendor", 137 .type = QEMU_OPT_STRING, 138 .help = "vendor name", 139 },{ 140 .name = "version", 141 .type = QEMU_OPT_STRING, 142 .help = "version number", 143 },{ 144 .name = "date", 145 .type = QEMU_OPT_STRING, 146 .help = "release date", 147 },{ 148 .name = "release", 149 .type = QEMU_OPT_STRING, 150 .help = "revision number", 151 },{ 152 .name = "uefi", 153 .type = QEMU_OPT_BOOL, 154 .help = "uefi support", 155 }, 156 { /* end of list */ } 157 }; 158 159 static const QemuOptDesc qemu_smbios_type1_opts[] = { 160 { 161 .name = "type", 162 .type = QEMU_OPT_NUMBER, 163 .help = "SMBIOS element type", 164 },{ 165 .name = "manufacturer", 166 .type = QEMU_OPT_STRING, 167 .help = "manufacturer name", 168 },{ 169 .name = "product", 170 .type = QEMU_OPT_STRING, 171 .help = "product name", 172 },{ 173 .name = "version", 174 .type = QEMU_OPT_STRING, 175 .help = "version number", 176 },{ 177 .name = "serial", 178 .type = QEMU_OPT_STRING, 179 .help = "serial number", 180 },{ 181 .name = "uuid", 182 .type = QEMU_OPT_STRING, 183 .help = "UUID", 184 },{ 185 .name = "sku", 186 .type = QEMU_OPT_STRING, 187 .help = "SKU number", 188 },{ 189 .name = "family", 190 .type = QEMU_OPT_STRING, 191 .help = "family name", 192 }, 193 { /* end of list */ } 194 }; 195 196 static const QemuOptDesc qemu_smbios_type2_opts[] = { 197 { 198 .name = "type", 199 .type = QEMU_OPT_NUMBER, 200 .help = "SMBIOS element type", 201 },{ 202 .name = "manufacturer", 203 .type = QEMU_OPT_STRING, 204 .help = "manufacturer name", 205 },{ 206 .name = "product", 207 .type = QEMU_OPT_STRING, 208 .help = "product name", 209 },{ 210 .name = "version", 211 .type = QEMU_OPT_STRING, 212 .help = "version number", 213 },{ 214 .name = "serial", 215 .type = QEMU_OPT_STRING, 216 .help = "serial number", 217 },{ 218 .name = "asset", 219 .type = QEMU_OPT_STRING, 220 .help = "asset tag number", 221 },{ 222 .name = "location", 223 .type = QEMU_OPT_STRING, 224 .help = "location in chassis", 225 }, 226 { /* end of list */ } 227 }; 228 229 static const QemuOptDesc qemu_smbios_type3_opts[] = { 230 { 231 .name = "type", 232 .type = QEMU_OPT_NUMBER, 233 .help = "SMBIOS element type", 234 },{ 235 .name = "manufacturer", 236 .type = QEMU_OPT_STRING, 237 .help = "manufacturer name", 238 },{ 239 .name = "version", 240 .type = QEMU_OPT_STRING, 241 .help = "version number", 242 },{ 243 .name = "serial", 244 .type = QEMU_OPT_STRING, 245 .help = "serial number", 246 },{ 247 .name = "asset", 248 .type = QEMU_OPT_STRING, 249 .help = "asset tag number", 250 },{ 251 .name = "sku", 252 .type = QEMU_OPT_STRING, 253 .help = "SKU number", 254 }, 255 { /* end of list */ } 256 }; 257 258 static const QemuOptDesc qemu_smbios_type4_opts[] = { 259 { 260 .name = "type", 261 .type = QEMU_OPT_NUMBER, 262 .help = "SMBIOS element type", 263 },{ 264 .name = "sock_pfx", 265 .type = QEMU_OPT_STRING, 266 .help = "socket designation string prefix", 267 },{ 268 .name = "manufacturer", 269 .type = QEMU_OPT_STRING, 270 .help = "manufacturer name", 271 },{ 272 .name = "version", 273 .type = QEMU_OPT_STRING, 274 .help = "version number", 275 },{ 276 .name = "serial", 277 .type = QEMU_OPT_STRING, 278 .help = "serial number", 279 },{ 280 .name = "asset", 281 .type = QEMU_OPT_STRING, 282 .help = "asset tag number", 283 },{ 284 .name = "part", 285 .type = QEMU_OPT_STRING, 286 .help = "part number", 287 }, 288 { /* end of list */ } 289 }; 290 291 static const QemuOptDesc qemu_smbios_type11_opts[] = { 292 { 293 .name = "value", 294 .type = QEMU_OPT_STRING, 295 .help = "OEM string data", 296 }, 297 }; 298 299 static const QemuOptDesc qemu_smbios_type17_opts[] = { 300 { 301 .name = "type", 302 .type = QEMU_OPT_NUMBER, 303 .help = "SMBIOS element type", 304 },{ 305 .name = "loc_pfx", 306 .type = QEMU_OPT_STRING, 307 .help = "device locator string prefix", 308 },{ 309 .name = "bank", 310 .type = QEMU_OPT_STRING, 311 .help = "bank locator string", 312 },{ 313 .name = "manufacturer", 314 .type = QEMU_OPT_STRING, 315 .help = "manufacturer name", 316 },{ 317 .name = "serial", 318 .type = QEMU_OPT_STRING, 319 .help = "serial number", 320 },{ 321 .name = "asset", 322 .type = QEMU_OPT_STRING, 323 .help = "asset tag number", 324 },{ 325 .name = "part", 326 .type = QEMU_OPT_STRING, 327 .help = "part number", 328 },{ 329 .name = "speed", 330 .type = QEMU_OPT_NUMBER, 331 .help = "maximum capable speed", 332 }, 333 { /* end of list */ } 334 }; 335 336 static void smbios_register_config(void) 337 { 338 qemu_add_opts(&qemu_smbios_opts); 339 } 340 341 opts_init(smbios_register_config); 342 343 static void smbios_validate_table(MachineState *ms) 344 { 345 uint32_t expect_t4_count = smbios_legacy ? 346 ms->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(MachineState *ms, 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(ms); 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(MachineState *ms, 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 = ms->smp.cores; 601 t->thread_count = ms->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(MachineState *ms, 843 const struct smbios_phys_mem_area *mem_array, 844 const unsigned int mem_array_size, 845 uint8_t **tables, size_t *tables_len, 846 uint8_t **anchor, size_t *anchor_len) 847 { 848 unsigned i, dimm_cnt; 849 850 if (smbios_legacy) { 851 *tables = *anchor = NULL; 852 *tables_len = *anchor_len = 0; 853 return; 854 } 855 856 if (!smbios_immutable) { 857 smbios_build_type_0_table(); 858 smbios_build_type_1_table(); 859 smbios_build_type_2_table(); 860 smbios_build_type_3_table(); 861 862 smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus, 863 ms->smp.cores * ms->smp.threads); 864 assert(smbios_smp_sockets >= 1); 865 866 for (i = 0; i < smbios_smp_sockets; i++) { 867 smbios_build_type_4_table(ms, i); 868 } 869 870 smbios_build_type_11_table(); 871 872 #define MAX_DIMM_SZ (16 * GiB) 873 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \ 874 : ((ram_size - 1) % MAX_DIMM_SZ) + 1) 875 876 dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ; 877 878 smbios_build_type_16_table(dimm_cnt); 879 880 for (i = 0; i < dimm_cnt; i++) { 881 smbios_build_type_17_table(i, GET_DIMM_SZ); 882 } 883 884 for (i = 0; i < mem_array_size; i++) { 885 smbios_build_type_19_table(i, mem_array[i].address, 886 mem_array[i].length); 887 } 888 889 smbios_build_type_32_table(); 890 smbios_build_type_38_table(); 891 smbios_build_type_127_table(); 892 893 smbios_validate_table(ms); 894 smbios_entry_point_setup(); 895 smbios_immutable = true; 896 } 897 898 /* return tables blob and entry point (anchor), and their sizes */ 899 *tables = smbios_tables; 900 *tables_len = smbios_tables_len; 901 *anchor = (uint8_t *)&ep; 902 903 /* calculate length based on anchor string */ 904 if (!strncmp((char *)&ep, "_SM_", 4)) { 905 *anchor_len = sizeof(struct smbios_21_entry_point); 906 } else if (!strncmp((char *)&ep, "_SM3_", 5)) { 907 *anchor_len = sizeof(struct smbios_30_entry_point); 908 } else { 909 abort(); 910 } 911 } 912 913 static void save_opt(const char **dest, QemuOpts *opts, const char *name) 914 { 915 const char *val = qemu_opt_get(opts, name); 916 917 if (val) { 918 *dest = val; 919 } 920 } 921 922 923 struct opt_list { 924 const char *name; 925 size_t *ndest; 926 const char ***dest; 927 }; 928 929 static int save_opt_one(void *opaque, 930 const char *name, const char *value, 931 Error **errp) 932 { 933 struct opt_list *opt = opaque; 934 935 if (!g_str_equal(name, opt->name)) { 936 return 0; 937 } 938 939 *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1); 940 (*opt->dest)[*opt->ndest] = value; 941 (*opt->ndest)++; 942 return 0; 943 } 944 945 static void save_opt_list(size_t *ndest, const char ***dest, 946 QemuOpts *opts, const char *name) 947 { 948 struct opt_list opt = { 949 name, ndest, dest, 950 }; 951 qemu_opt_foreach(opts, save_opt_one, &opt, NULL); 952 } 953 954 void smbios_entry_add(QemuOpts *opts, Error **errp) 955 { 956 const char *val; 957 958 assert(!smbios_immutable); 959 960 val = qemu_opt_get(opts, "file"); 961 if (val) { 962 struct smbios_structure_header *header; 963 int size; 964 struct smbios_table *table; /* legacy mode only */ 965 966 if (!qemu_opts_validate(opts, qemu_smbios_file_opts, errp)) { 967 return; 968 } 969 970 size = get_image_size(val); 971 if (size == -1 || size < sizeof(struct smbios_structure_header)) { 972 error_setg(errp, "Cannot read SMBIOS file %s", val); 973 return; 974 } 975 976 /* 977 * NOTE: standard double '\0' terminator expected, per smbios spec. 978 * (except in legacy mode, where the second '\0' is implicit and 979 * will be inserted by the BIOS). 980 */ 981 smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size); 982 header = (struct smbios_structure_header *)(smbios_tables + 983 smbios_tables_len); 984 985 if (load_image_size(val, (uint8_t *)header, size) != size) { 986 error_setg(errp, "Failed to load SMBIOS file %s", val); 987 return; 988 } 989 990 if (test_bit(header->type, have_fields_bitmap)) { 991 error_setg(errp, 992 "can't load type %d struct, fields already specified!", 993 header->type); 994 return; 995 } 996 set_bit(header->type, have_binfile_bitmap); 997 998 if (header->type == 4) { 999 smbios_type4_count++; 1000 } 1001 1002 smbios_tables_len += size; 1003 if (size > smbios_table_max) { 1004 smbios_table_max = size; 1005 } 1006 smbios_table_cnt++; 1007 1008 /* add a copy of the newly loaded blob to legacy smbios_entries */ 1009 /* NOTE: This code runs before smbios_set_defaults(), so we don't 1010 * yet know which mode (legacy vs. aggregate-table) will be 1011 * required. We therefore add the binary blob to both legacy 1012 * (smbios_entries) and aggregate (smbios_tables) tables, and 1013 * delete the one we don't need from smbios_set_defaults(), 1014 * once we know which machine version has been requested. 1015 */ 1016 if (!smbios_entries) { 1017 smbios_entries_len = sizeof(uint16_t); 1018 smbios_entries = g_malloc0(smbios_entries_len); 1019 } 1020 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 1021 size + sizeof(*table)); 1022 table = (struct smbios_table *)(smbios_entries + smbios_entries_len); 1023 table->header.type = SMBIOS_TABLE_ENTRY; 1024 table->header.length = cpu_to_le16(sizeof(*table) + size); 1025 memcpy(table->data, header, size); 1026 smbios_entries_len += sizeof(*table) + size; 1027 (*(uint16_t *)smbios_entries) = 1028 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 1029 /* end: add a copy of the newly loaded blob to legacy smbios_entries */ 1030 1031 return; 1032 } 1033 1034 val = qemu_opt_get(opts, "type"); 1035 if (val) { 1036 unsigned long type = strtoul(val, NULL, 0); 1037 1038 if (type > SMBIOS_MAX_TYPE) { 1039 error_setg(errp, "out of range!"); 1040 return; 1041 } 1042 1043 if (test_bit(type, have_binfile_bitmap)) { 1044 error_setg(errp, "can't add fields, binary file already loaded!"); 1045 return; 1046 } 1047 set_bit(type, have_fields_bitmap); 1048 1049 switch (type) { 1050 case 0: 1051 if (!qemu_opts_validate(opts, qemu_smbios_type0_opts, errp)) { 1052 return; 1053 } 1054 save_opt(&type0.vendor, opts, "vendor"); 1055 save_opt(&type0.version, opts, "version"); 1056 save_opt(&type0.date, opts, "date"); 1057 type0.uefi = qemu_opt_get_bool(opts, "uefi", false); 1058 1059 val = qemu_opt_get(opts, "release"); 1060 if (val) { 1061 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { 1062 error_setg(errp, "Invalid release"); 1063 return; 1064 } 1065 type0.have_major_minor = true; 1066 } 1067 return; 1068 case 1: 1069 if (!qemu_opts_validate(opts, qemu_smbios_type1_opts, errp)) { 1070 return; 1071 } 1072 save_opt(&type1.manufacturer, opts, "manufacturer"); 1073 save_opt(&type1.product, opts, "product"); 1074 save_opt(&type1.version, opts, "version"); 1075 save_opt(&type1.serial, opts, "serial"); 1076 save_opt(&type1.sku, opts, "sku"); 1077 save_opt(&type1.family, opts, "family"); 1078 1079 val = qemu_opt_get(opts, "uuid"); 1080 if (val) { 1081 if (qemu_uuid_parse(val, &qemu_uuid) != 0) { 1082 error_setg(errp, "Invalid UUID"); 1083 return; 1084 } 1085 qemu_uuid_set = true; 1086 } 1087 return; 1088 case 2: 1089 if (!qemu_opts_validate(opts, qemu_smbios_type2_opts, errp)) { 1090 return; 1091 } 1092 save_opt(&type2.manufacturer, opts, "manufacturer"); 1093 save_opt(&type2.product, opts, "product"); 1094 save_opt(&type2.version, opts, "version"); 1095 save_opt(&type2.serial, opts, "serial"); 1096 save_opt(&type2.asset, opts, "asset"); 1097 save_opt(&type2.location, opts, "location"); 1098 return; 1099 case 3: 1100 if (!qemu_opts_validate(opts, qemu_smbios_type3_opts, errp)) { 1101 return; 1102 } 1103 save_opt(&type3.manufacturer, opts, "manufacturer"); 1104 save_opt(&type3.version, opts, "version"); 1105 save_opt(&type3.serial, opts, "serial"); 1106 save_opt(&type3.asset, opts, "asset"); 1107 save_opt(&type3.sku, opts, "sku"); 1108 return; 1109 case 4: 1110 if (!qemu_opts_validate(opts, qemu_smbios_type4_opts, errp)) { 1111 return; 1112 } 1113 save_opt(&type4.sock_pfx, opts, "sock_pfx"); 1114 save_opt(&type4.manufacturer, opts, "manufacturer"); 1115 save_opt(&type4.version, opts, "version"); 1116 save_opt(&type4.serial, opts, "serial"); 1117 save_opt(&type4.asset, opts, "asset"); 1118 save_opt(&type4.part, opts, "part"); 1119 return; 1120 case 11: 1121 if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) { 1122 return; 1123 } 1124 save_opt_list(&type11.nvalues, &type11.values, opts, "value"); 1125 return; 1126 case 17: 1127 if (!qemu_opts_validate(opts, qemu_smbios_type17_opts, errp)) { 1128 return; 1129 } 1130 save_opt(&type17.loc_pfx, opts, "loc_pfx"); 1131 save_opt(&type17.bank, opts, "bank"); 1132 save_opt(&type17.manufacturer, opts, "manufacturer"); 1133 save_opt(&type17.serial, opts, "serial"); 1134 save_opt(&type17.asset, opts, "asset"); 1135 save_opt(&type17.part, opts, "part"); 1136 type17.speed = qemu_opt_get_number(opts, "speed", 0); 1137 return; 1138 default: 1139 error_setg(errp, 1140 "Don't know how to build fields for SMBIOS type %ld", 1141 type); 1142 return; 1143 } 1144 } 1145 1146 error_setg(errp, "Must specify type= or file="); 1147 } 1148