1 /* 2 * SMBIOS Support 3 * 4 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. 5 * Copyright (C) 2013 Red Hat, Inc. 6 * 7 * Authors: 8 * Alex Williamson <alex.williamson@hp.com> 9 * Markus Armbruster <armbru@redhat.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2. See 12 * the COPYING file in the top-level directory. 13 * 14 * Contributions after 2012-01-13 are licensed under the terms of the 15 * GNU GPL, version 2 or (at your option) any later version. 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qemu/units.h" 20 #include "qapi/error.h" 21 #include "qemu/config-file.h" 22 #include "qemu/error-report.h" 23 #include "qemu/module.h" 24 #include "qemu/option.h" 25 #include "sysemu/sysemu.h" 26 #include "qemu/uuid.h" 27 #include "sysemu/cpus.h" 28 #include "hw/firmware/smbios.h" 29 #include "hw/loader.h" 30 #include "hw/boards.h" 31 #include "smbios_build.h" 32 33 /* legacy structures and constants for <= 2.0 machines */ 34 struct smbios_header { 35 uint16_t length; 36 uint8_t type; 37 } QEMU_PACKED; 38 39 struct smbios_field { 40 struct smbios_header header; 41 uint8_t type; 42 uint16_t offset; 43 uint8_t data[]; 44 } QEMU_PACKED; 45 46 struct smbios_table { 47 struct smbios_header header; 48 uint8_t data[]; 49 } QEMU_PACKED; 50 51 #define SMBIOS_FIELD_ENTRY 0 52 #define SMBIOS_TABLE_ENTRY 1 53 54 static uint8_t *smbios_entries; 55 static size_t smbios_entries_len; 56 static bool smbios_legacy = true; 57 static bool smbios_uuid_encoded = true; 58 /* end: legacy structures & constants for <= 2.0 machines */ 59 60 61 uint8_t *smbios_tables; 62 size_t smbios_tables_len; 63 unsigned smbios_table_max; 64 unsigned smbios_table_cnt; 65 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21; 66 67 static SmbiosEntryPoint ep; 68 69 static int smbios_type4_count = 0; 70 static bool smbios_immutable; 71 static bool smbios_have_defaults; 72 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets; 73 74 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1); 75 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1); 76 77 static struct { 78 const char *vendor, *version, *date; 79 bool have_major_minor, uefi; 80 uint8_t major, minor; 81 } type0; 82 83 static struct { 84 const char *manufacturer, *product, *version, *serial, *sku, *family; 85 /* uuid is in qemu_uuid */ 86 } type1; 87 88 static struct { 89 const char *manufacturer, *product, *version, *serial, *asset, *location; 90 } type2; 91 92 static struct { 93 const char *manufacturer, *version, *serial, *asset, *sku; 94 } type3; 95 96 static struct { 97 const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part; 98 } type4; 99 100 static struct { 101 size_t nvalues; 102 const char **values; 103 } type11; 104 105 static struct { 106 const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part; 107 uint16_t speed; 108 } type17; 109 110 static QemuOptsList qemu_smbios_opts = { 111 .name = "smbios", 112 .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), 113 .desc = { 114 /* 115 * no elements => accept any params 116 * validation will happen later 117 */ 118 { /* end of list */ } 119 } 120 }; 121 122 static const QemuOptDesc qemu_smbios_file_opts[] = { 123 { 124 .name = "file", 125 .type = QEMU_OPT_STRING, 126 .help = "binary file containing an SMBIOS element", 127 }, 128 { /* end of list */ } 129 }; 130 131 static const QemuOptDesc qemu_smbios_type0_opts[] = { 132 { 133 .name = "type", 134 .type = QEMU_OPT_NUMBER, 135 .help = "SMBIOS element type", 136 },{ 137 .name = "vendor", 138 .type = QEMU_OPT_STRING, 139 .help = "vendor name", 140 },{ 141 .name = "version", 142 .type = QEMU_OPT_STRING, 143 .help = "version number", 144 },{ 145 .name = "date", 146 .type = QEMU_OPT_STRING, 147 .help = "release date", 148 },{ 149 .name = "release", 150 .type = QEMU_OPT_STRING, 151 .help = "revision number", 152 },{ 153 .name = "uefi", 154 .type = QEMU_OPT_BOOL, 155 .help = "uefi support", 156 }, 157 { /* end of list */ } 158 }; 159 160 static const QemuOptDesc qemu_smbios_type1_opts[] = { 161 { 162 .name = "type", 163 .type = QEMU_OPT_NUMBER, 164 .help = "SMBIOS element type", 165 },{ 166 .name = "manufacturer", 167 .type = QEMU_OPT_STRING, 168 .help = "manufacturer name", 169 },{ 170 .name = "product", 171 .type = QEMU_OPT_STRING, 172 .help = "product name", 173 },{ 174 .name = "version", 175 .type = QEMU_OPT_STRING, 176 .help = "version number", 177 },{ 178 .name = "serial", 179 .type = QEMU_OPT_STRING, 180 .help = "serial number", 181 },{ 182 .name = "uuid", 183 .type = QEMU_OPT_STRING, 184 .help = "UUID", 185 },{ 186 .name = "sku", 187 .type = QEMU_OPT_STRING, 188 .help = "SKU number", 189 },{ 190 .name = "family", 191 .type = QEMU_OPT_STRING, 192 .help = "family name", 193 }, 194 { /* end of list */ } 195 }; 196 197 static const QemuOptDesc qemu_smbios_type2_opts[] = { 198 { 199 .name = "type", 200 .type = QEMU_OPT_NUMBER, 201 .help = "SMBIOS element type", 202 },{ 203 .name = "manufacturer", 204 .type = QEMU_OPT_STRING, 205 .help = "manufacturer name", 206 },{ 207 .name = "product", 208 .type = QEMU_OPT_STRING, 209 .help = "product name", 210 },{ 211 .name = "version", 212 .type = QEMU_OPT_STRING, 213 .help = "version number", 214 },{ 215 .name = "serial", 216 .type = QEMU_OPT_STRING, 217 .help = "serial number", 218 },{ 219 .name = "asset", 220 .type = QEMU_OPT_STRING, 221 .help = "asset tag number", 222 },{ 223 .name = "location", 224 .type = QEMU_OPT_STRING, 225 .help = "location in chassis", 226 }, 227 { /* end of list */ } 228 }; 229 230 static const QemuOptDesc qemu_smbios_type3_opts[] = { 231 { 232 .name = "type", 233 .type = QEMU_OPT_NUMBER, 234 .help = "SMBIOS element type", 235 },{ 236 .name = "manufacturer", 237 .type = QEMU_OPT_STRING, 238 .help = "manufacturer name", 239 },{ 240 .name = "version", 241 .type = QEMU_OPT_STRING, 242 .help = "version number", 243 },{ 244 .name = "serial", 245 .type = QEMU_OPT_STRING, 246 .help = "serial number", 247 },{ 248 .name = "asset", 249 .type = QEMU_OPT_STRING, 250 .help = "asset tag number", 251 },{ 252 .name = "sku", 253 .type = QEMU_OPT_STRING, 254 .help = "SKU number", 255 }, 256 { /* end of list */ } 257 }; 258 259 static const QemuOptDesc qemu_smbios_type4_opts[] = { 260 { 261 .name = "type", 262 .type = QEMU_OPT_NUMBER, 263 .help = "SMBIOS element type", 264 },{ 265 .name = "sock_pfx", 266 .type = QEMU_OPT_STRING, 267 .help = "socket designation string prefix", 268 },{ 269 .name = "manufacturer", 270 .type = QEMU_OPT_STRING, 271 .help = "manufacturer name", 272 },{ 273 .name = "version", 274 .type = QEMU_OPT_STRING, 275 .help = "version number", 276 },{ 277 .name = "serial", 278 .type = QEMU_OPT_STRING, 279 .help = "serial number", 280 },{ 281 .name = "asset", 282 .type = QEMU_OPT_STRING, 283 .help = "asset tag number", 284 },{ 285 .name = "part", 286 .type = QEMU_OPT_STRING, 287 .help = "part number", 288 }, 289 { /* end of list */ } 290 }; 291 292 static const QemuOptDesc qemu_smbios_type11_opts[] = { 293 { 294 .name = "value", 295 .type = QEMU_OPT_STRING, 296 .help = "OEM string data", 297 }, 298 }; 299 300 static const QemuOptDesc qemu_smbios_type17_opts[] = { 301 { 302 .name = "type", 303 .type = QEMU_OPT_NUMBER, 304 .help = "SMBIOS element type", 305 },{ 306 .name = "loc_pfx", 307 .type = QEMU_OPT_STRING, 308 .help = "device locator string prefix", 309 },{ 310 .name = "bank", 311 .type = QEMU_OPT_STRING, 312 .help = "bank locator string", 313 },{ 314 .name = "manufacturer", 315 .type = QEMU_OPT_STRING, 316 .help = "manufacturer name", 317 },{ 318 .name = "serial", 319 .type = QEMU_OPT_STRING, 320 .help = "serial number", 321 },{ 322 .name = "asset", 323 .type = QEMU_OPT_STRING, 324 .help = "asset tag number", 325 },{ 326 .name = "part", 327 .type = QEMU_OPT_STRING, 328 .help = "part number", 329 },{ 330 .name = "speed", 331 .type = QEMU_OPT_NUMBER, 332 .help = "maximum capable speed", 333 }, 334 { /* end of list */ } 335 }; 336 337 static void smbios_register_config(void) 338 { 339 qemu_add_opts(&qemu_smbios_opts); 340 } 341 342 opts_init(smbios_register_config); 343 344 static void smbios_validate_table(MachineState *ms) 345 { 346 uint32_t expect_t4_count = smbios_legacy ? 347 ms->smp.cpus : smbios_smp_sockets; 348 349 if (smbios_type4_count && smbios_type4_count != expect_t4_count) { 350 error_report("Expected %d SMBIOS Type 4 tables, got %d instead", 351 expect_t4_count, smbios_type4_count); 352 exit(1); 353 } 354 } 355 356 357 /* legacy setup functions for <= 2.0 machines */ 358 static void smbios_add_field(int type, int offset, const void *data, size_t len) 359 { 360 struct smbios_field *field; 361 362 if (!smbios_entries) { 363 smbios_entries_len = sizeof(uint16_t); 364 smbios_entries = g_malloc0(smbios_entries_len); 365 } 366 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 367 sizeof(*field) + len); 368 field = (struct smbios_field *)(smbios_entries + smbios_entries_len); 369 field->header.type = SMBIOS_FIELD_ENTRY; 370 field->header.length = cpu_to_le16(sizeof(*field) + len); 371 372 field->type = type; 373 field->offset = cpu_to_le16(offset); 374 memcpy(field->data, data, len); 375 376 smbios_entries_len += sizeof(*field) + len; 377 (*(uint16_t *)smbios_entries) = 378 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 379 } 380 381 static void smbios_maybe_add_str(int type, int offset, const char *data) 382 { 383 if (data) { 384 smbios_add_field(type, offset, data, strlen(data) + 1); 385 } 386 } 387 388 static void smbios_build_type_0_fields(void) 389 { 390 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str), 391 type0.vendor); 392 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str), 393 type0.version); 394 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, 395 bios_release_date_str), 396 type0.date); 397 if (type0.have_major_minor) { 398 smbios_add_field(0, offsetof(struct smbios_type_0, 399 system_bios_major_release), 400 &type0.major, 1); 401 smbios_add_field(0, offsetof(struct smbios_type_0, 402 system_bios_minor_release), 403 &type0.minor, 1); 404 } 405 } 406 407 static void smbios_build_type_1_fields(void) 408 { 409 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str), 410 type1.manufacturer); 411 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str), 412 type1.product); 413 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str), 414 type1.version); 415 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str), 416 type1.serial); 417 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str), 418 type1.sku); 419 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str), 420 type1.family); 421 if (qemu_uuid_set) { 422 /* We don't encode the UUID in the "wire format" here because this 423 * function is for legacy mode and needs to keep the guest ABI, and 424 * because we don't know what's the SMBIOS version advertised by the 425 * BIOS. 426 */ 427 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 428 &qemu_uuid, 16); 429 } 430 } 431 432 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length) 433 { 434 if (!smbios_legacy) { 435 *length = 0; 436 return NULL; 437 } 438 439 if (!smbios_immutable) { 440 smbios_build_type_0_fields(); 441 smbios_build_type_1_fields(); 442 smbios_validate_table(ms); 443 smbios_immutable = true; 444 } 445 *length = smbios_entries_len; 446 return smbios_entries; 447 } 448 /* end: legacy setup functions for <= 2.0 machines */ 449 450 451 bool smbios_skip_table(uint8_t type, bool required_table) 452 { 453 if (test_bit(type, have_binfile_bitmap)) { 454 return true; /* user provided their own binary blob(s) */ 455 } 456 if (test_bit(type, have_fields_bitmap)) { 457 return false; /* user provided fields via command line */ 458 } 459 if (smbios_have_defaults && required_table) { 460 return false; /* we're building tables, and this one's required */ 461 } 462 return true; 463 } 464 465 static void smbios_build_type_0_table(void) 466 { 467 SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */ 468 469 SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor); 470 SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version); 471 472 t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */ 473 474 SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date); 475 476 t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */ 477 478 t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */ 479 t->bios_characteristics_extension_bytes[0] = 0; 480 t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */ 481 if (type0.uefi) { 482 t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */ 483 } 484 485 if (type0.have_major_minor) { 486 t->system_bios_major_release = type0.major; 487 t->system_bios_minor_release = type0.minor; 488 } else { 489 t->system_bios_major_release = 0; 490 t->system_bios_minor_release = 0; 491 } 492 493 /* hardcoded in SeaBIOS */ 494 t->embedded_controller_major_release = 0xFF; 495 t->embedded_controller_minor_release = 0xFF; 496 497 SMBIOS_BUILD_TABLE_POST; 498 } 499 500 /* Encode UUID from the big endian encoding described on RFC4122 to the wire 501 * format specified by SMBIOS version 2.6. 502 */ 503 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in) 504 { 505 memcpy(uuid, in, 16); 506 if (smbios_uuid_encoded) { 507 uuid->time_low = bswap32(uuid->time_low); 508 uuid->time_mid = bswap16(uuid->time_mid); 509 uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version); 510 } 511 } 512 513 static void smbios_build_type_1_table(void) 514 { 515 SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */ 516 517 SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer); 518 SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product); 519 SMBIOS_TABLE_SET_STR(1, version_str, type1.version); 520 SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial); 521 if (qemu_uuid_set) { 522 smbios_encode_uuid(&t->uuid, &qemu_uuid); 523 } else { 524 memset(&t->uuid, 0, 16); 525 } 526 t->wake_up_type = 0x06; /* power switch */ 527 SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku); 528 SMBIOS_TABLE_SET_STR(1, family_str, type1.family); 529 530 SMBIOS_BUILD_TABLE_POST; 531 } 532 533 static void smbios_build_type_2_table(void) 534 { 535 SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */ 536 537 SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer); 538 SMBIOS_TABLE_SET_STR(2, product_str, type2.product); 539 SMBIOS_TABLE_SET_STR(2, version_str, type2.version); 540 SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial); 541 SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset); 542 t->feature_flags = 0x01; /* Motherboard */ 543 SMBIOS_TABLE_SET_STR(2, location_str, type2.location); 544 t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */ 545 t->board_type = 0x0A; /* Motherboard */ 546 t->contained_element_count = 0; 547 548 SMBIOS_BUILD_TABLE_POST; 549 } 550 551 static void smbios_build_type_3_table(void) 552 { 553 SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */ 554 555 SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer); 556 t->type = 0x01; /* Other */ 557 SMBIOS_TABLE_SET_STR(3, version_str, type3.version); 558 SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial); 559 SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset); 560 t->boot_up_state = 0x03; /* Safe */ 561 t->power_supply_state = 0x03; /* Safe */ 562 t->thermal_state = 0x03; /* Safe */ 563 t->security_status = 0x02; /* Unknown */ 564 t->oem_defined = cpu_to_le32(0); 565 t->height = 0; 566 t->number_of_power_cords = 0; 567 t->contained_element_count = 0; 568 t->contained_element_record_length = 0; 569 SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku); 570 571 SMBIOS_BUILD_TABLE_POST; 572 } 573 574 static void smbios_build_type_4_table(MachineState *ms, unsigned instance) 575 { 576 char sock_str[128]; 577 578 SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */ 579 580 snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance); 581 SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str); 582 t->processor_type = 0x03; /* CPU */ 583 t->processor_family = 0x01; /* Other */ 584 SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer); 585 t->processor_id[0] = cpu_to_le32(smbios_cpuid_version); 586 t->processor_id[1] = cpu_to_le32(smbios_cpuid_features); 587 SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version); 588 t->voltage = 0; 589 t->external_clock = cpu_to_le16(0); /* Unknown */ 590 /* SVVP requires max_speed and current_speed to not be unknown. */ 591 t->max_speed = cpu_to_le16(2000); /* 2000 MHz */ 592 t->current_speed = cpu_to_le16(2000); /* 2000 MHz */ 593 t->status = 0x41; /* Socket populated, CPU enabled */ 594 t->processor_upgrade = 0x01; /* Other */ 595 t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 596 t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 597 t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 598 SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial); 599 SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset); 600 SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part); 601 t->core_count = t->core_enabled = ms->smp.cores; 602 t->thread_count = ms->smp.threads; 603 t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ 604 t->processor_family2 = cpu_to_le16(0x01); /* Other */ 605 606 SMBIOS_BUILD_TABLE_POST; 607 smbios_type4_count++; 608 } 609 610 static void smbios_build_type_11_table(void) 611 { 612 char count_str[128]; 613 size_t i; 614 615 if (type11.nvalues == 0) { 616 return; 617 } 618 619 SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */ 620 621 snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues); 622 t->count = type11.nvalues; 623 624 for (i = 0; i < type11.nvalues; i++) { 625 SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]); 626 } 627 628 SMBIOS_BUILD_TABLE_POST; 629 } 630 631 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */ 632 633 static void smbios_build_type_16_table(unsigned dimm_cnt) 634 { 635 uint64_t size_kb; 636 637 SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */ 638 639 t->location = 0x01; /* Other */ 640 t->use = 0x03; /* System memory */ 641 t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */ 642 size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB; 643 if (size_kb < MAX_T16_STD_SZ) { 644 t->maximum_capacity = cpu_to_le32(size_kb); 645 t->extended_maximum_capacity = cpu_to_le64(0); 646 } else { 647 t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ); 648 t->extended_maximum_capacity = cpu_to_le64(ram_size); 649 } 650 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 651 t->number_of_memory_devices = cpu_to_le16(dimm_cnt); 652 653 SMBIOS_BUILD_TABLE_POST; 654 } 655 656 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */ 657 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */ 658 659 static void smbios_build_type_17_table(unsigned instance, uint64_t size) 660 { 661 char loc_str[128]; 662 uint64_t size_mb; 663 664 SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */ 665 666 t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 667 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 668 t->total_width = cpu_to_le16(0xFFFF); /* Unknown */ 669 t->data_width = cpu_to_le16(0xFFFF); /* Unknown */ 670 size_mb = QEMU_ALIGN_UP(size, MiB) / MiB; 671 if (size_mb < MAX_T17_STD_SZ) { 672 t->size = cpu_to_le16(size_mb); 673 t->extended_size = cpu_to_le32(0); 674 } else { 675 assert(size_mb < MAX_T17_EXT_SZ); 676 t->size = cpu_to_le16(MAX_T17_STD_SZ); 677 t->extended_size = cpu_to_le32(size_mb); 678 } 679 t->form_factor = 0x09; /* DIMM */ 680 t->device_set = 0; /* Not in a set */ 681 snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance); 682 SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str); 683 SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank); 684 t->memory_type = 0x07; /* RAM */ 685 t->type_detail = cpu_to_le16(0x02); /* Other */ 686 t->speed = cpu_to_le16(type17.speed); 687 SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer); 688 SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial); 689 SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset); 690 SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part); 691 t->attributes = 0; /* Unknown */ 692 t->configured_clock_speed = t->speed; /* reuse value for max speed */ 693 t->minimum_voltage = cpu_to_le16(0); /* Unknown */ 694 t->maximum_voltage = cpu_to_le16(0); /* Unknown */ 695 t->configured_voltage = cpu_to_le16(0); /* Unknown */ 696 697 SMBIOS_BUILD_TABLE_POST; 698 } 699 700 static void smbios_build_type_19_table(unsigned instance, 701 uint64_t start, uint64_t size) 702 { 703 uint64_t end, start_kb, end_kb; 704 705 SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */ 706 707 end = start + size - 1; 708 assert(end > start); 709 start_kb = start / KiB; 710 end_kb = end / KiB; 711 if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) { 712 t->starting_address = cpu_to_le32(start_kb); 713 t->ending_address = cpu_to_le32(end_kb); 714 t->extended_starting_address = 715 t->extended_ending_address = cpu_to_le64(0); 716 } else { 717 t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX); 718 t->extended_starting_address = cpu_to_le64(start); 719 t->extended_ending_address = cpu_to_le64(end); 720 } 721 t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 722 t->partition_width = 1; /* One device per row */ 723 724 SMBIOS_BUILD_TABLE_POST; 725 } 726 727 static void smbios_build_type_32_table(void) 728 { 729 SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */ 730 731 memset(t->reserved, 0, 6); 732 t->boot_status = 0; /* No errors detected */ 733 734 SMBIOS_BUILD_TABLE_POST; 735 } 736 737 static void smbios_build_type_127_table(void) 738 { 739 SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */ 740 SMBIOS_BUILD_TABLE_POST; 741 } 742 743 void smbios_set_cpuid(uint32_t version, uint32_t features) 744 { 745 smbios_cpuid_version = version; 746 smbios_cpuid_features = features; 747 } 748 749 #define SMBIOS_SET_DEFAULT(field, value) \ 750 if (!field) { \ 751 field = value; \ 752 } 753 754 void smbios_set_defaults(const char *manufacturer, const char *product, 755 const char *version, bool legacy_mode, 756 bool uuid_encoded, SmbiosEntryPointType ep_type) 757 { 758 smbios_have_defaults = true; 759 smbios_legacy = legacy_mode; 760 smbios_uuid_encoded = uuid_encoded; 761 smbios_ep_type = ep_type; 762 763 /* drop unwanted version of command-line file blob(s) */ 764 if (smbios_legacy) { 765 g_free(smbios_tables); 766 /* in legacy mode, also complain if fields were given for types > 1 */ 767 if (find_next_bit(have_fields_bitmap, 768 SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) { 769 error_report("can't process fields for smbios " 770 "types > 1 on machine versions < 2.1!"); 771 exit(1); 772 } 773 } else { 774 g_free(smbios_entries); 775 } 776 777 SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer); 778 SMBIOS_SET_DEFAULT(type1.product, product); 779 SMBIOS_SET_DEFAULT(type1.version, version); 780 SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer); 781 SMBIOS_SET_DEFAULT(type2.product, product); 782 SMBIOS_SET_DEFAULT(type2.version, version); 783 SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer); 784 SMBIOS_SET_DEFAULT(type3.version, version); 785 SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU"); 786 SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer); 787 SMBIOS_SET_DEFAULT(type4.version, version); 788 SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM"); 789 SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer); 790 } 791 792 static void smbios_entry_point_setup(void) 793 { 794 switch (smbios_ep_type) { 795 case SMBIOS_ENTRY_POINT_21: 796 memcpy(ep.ep21.anchor_string, "_SM_", 4); 797 memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5); 798 ep.ep21.length = sizeof(struct smbios_21_entry_point); 799 ep.ep21.entry_point_revision = 0; /* formatted_area reserved */ 800 memset(ep.ep21.formatted_area, 0, 5); 801 802 /* compliant with smbios spec v2.8 */ 803 ep.ep21.smbios_major_version = 2; 804 ep.ep21.smbios_minor_version = 8; 805 ep.ep21.smbios_bcd_revision = 0x28; 806 807 /* set during table construction, but BIOS may override: */ 808 ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len); 809 ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max); 810 ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt); 811 812 /* BIOS must recalculate */ 813 ep.ep21.checksum = 0; 814 ep.ep21.intermediate_checksum = 0; 815 ep.ep21.structure_table_address = cpu_to_le32(0); 816 817 break; 818 case SMBIOS_ENTRY_POINT_30: 819 memcpy(ep.ep30.anchor_string, "_SM3_", 5); 820 ep.ep30.length = sizeof(struct smbios_30_entry_point); 821 ep.ep30.entry_point_revision = 1; 822 ep.ep30.reserved = 0; 823 824 /* compliant with smbios spec 3.0 */ 825 ep.ep30.smbios_major_version = 3; 826 ep.ep30.smbios_minor_version = 0; 827 ep.ep30.smbios_doc_rev = 0; 828 829 /* set during table construct, but BIOS might override */ 830 ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len); 831 832 /* BIOS must recalculate */ 833 ep.ep30.checksum = 0; 834 ep.ep30.structure_table_address = cpu_to_le64(0); 835 836 break; 837 default: 838 abort(); 839 break; 840 } 841 } 842 843 void smbios_get_tables(MachineState *ms, 844 const struct smbios_phys_mem_area *mem_array, 845 const unsigned int mem_array_size, 846 uint8_t **tables, size_t *tables_len, 847 uint8_t **anchor, size_t *anchor_len) 848 { 849 unsigned i, dimm_cnt; 850 851 if (smbios_legacy) { 852 *tables = *anchor = NULL; 853 *tables_len = *anchor_len = 0; 854 return; 855 } 856 857 if (!smbios_immutable) { 858 smbios_build_type_0_table(); 859 smbios_build_type_1_table(); 860 smbios_build_type_2_table(); 861 smbios_build_type_3_table(); 862 863 smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus, 864 ms->smp.cores * ms->smp.threads); 865 assert(smbios_smp_sockets >= 1); 866 867 for (i = 0; i < smbios_smp_sockets; i++) { 868 smbios_build_type_4_table(ms, i); 869 } 870 871 smbios_build_type_11_table(); 872 873 #define MAX_DIMM_SZ (16 * GiB) 874 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \ 875 : ((ram_size - 1) % MAX_DIMM_SZ) + 1) 876 877 dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ; 878 879 smbios_build_type_16_table(dimm_cnt); 880 881 for (i = 0; i < dimm_cnt; i++) { 882 smbios_build_type_17_table(i, GET_DIMM_SZ); 883 } 884 885 for (i = 0; i < mem_array_size; i++) { 886 smbios_build_type_19_table(i, mem_array[i].address, 887 mem_array[i].length); 888 } 889 890 smbios_build_type_32_table(); 891 smbios_build_type_38_table(); 892 smbios_build_type_127_table(); 893 894 smbios_validate_table(ms); 895 smbios_entry_point_setup(); 896 smbios_immutable = true; 897 } 898 899 /* return tables blob and entry point (anchor), and their sizes */ 900 *tables = smbios_tables; 901 *tables_len = smbios_tables_len; 902 *anchor = (uint8_t *)&ep; 903 904 /* calculate length based on anchor string */ 905 if (!strncmp((char *)&ep, "_SM_", 4)) { 906 *anchor_len = sizeof(struct smbios_21_entry_point); 907 } else if (!strncmp((char *)&ep, "_SM3_", 5)) { 908 *anchor_len = sizeof(struct smbios_30_entry_point); 909 } else { 910 abort(); 911 } 912 } 913 914 static void save_opt(const char **dest, QemuOpts *opts, const char *name) 915 { 916 const char *val = qemu_opt_get(opts, name); 917 918 if (val) { 919 *dest = val; 920 } 921 } 922 923 924 struct opt_list { 925 const char *name; 926 size_t *ndest; 927 const char ***dest; 928 }; 929 930 static int save_opt_one(void *opaque, 931 const char *name, const char *value, 932 Error **errp) 933 { 934 struct opt_list *opt = opaque; 935 936 if (!g_str_equal(name, opt->name)) { 937 return 0; 938 } 939 940 *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1); 941 (*opt->dest)[*opt->ndest] = value; 942 (*opt->ndest)++; 943 return 0; 944 } 945 946 static void save_opt_list(size_t *ndest, const char ***dest, 947 QemuOpts *opts, const char *name) 948 { 949 struct opt_list opt = { 950 name, ndest, dest, 951 }; 952 qemu_opt_foreach(opts, save_opt_one, &opt, NULL); 953 } 954 955 void smbios_entry_add(QemuOpts *opts, Error **errp) 956 { 957 Error *err = NULL; 958 const char *val; 959 960 assert(!smbios_immutable); 961 962 val = qemu_opt_get(opts, "file"); 963 if (val) { 964 struct smbios_structure_header *header; 965 int size; 966 struct smbios_table *table; /* legacy mode only */ 967 968 qemu_opts_validate(opts, qemu_smbios_file_opts, &err); 969 if (err) { 970 error_propagate(errp, err); 971 return; 972 } 973 974 size = get_image_size(val); 975 if (size == -1 || size < sizeof(struct smbios_structure_header)) { 976 error_setg(errp, "Cannot read SMBIOS file %s", val); 977 return; 978 } 979 980 /* 981 * NOTE: standard double '\0' terminator expected, per smbios spec. 982 * (except in legacy mode, where the second '\0' is implicit and 983 * will be inserted by the BIOS). 984 */ 985 smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size); 986 header = (struct smbios_structure_header *)(smbios_tables + 987 smbios_tables_len); 988 989 if (load_image_size(val, (uint8_t *)header, size) != size) { 990 error_setg(errp, "Failed to load SMBIOS file %s", val); 991 return; 992 } 993 994 if (test_bit(header->type, have_fields_bitmap)) { 995 error_setg(errp, 996 "can't load type %d struct, fields already specified!", 997 header->type); 998 return; 999 } 1000 set_bit(header->type, have_binfile_bitmap); 1001 1002 if (header->type == 4) { 1003 smbios_type4_count++; 1004 } 1005 1006 smbios_tables_len += size; 1007 if (size > smbios_table_max) { 1008 smbios_table_max = size; 1009 } 1010 smbios_table_cnt++; 1011 1012 /* add a copy of the newly loaded blob to legacy smbios_entries */ 1013 /* NOTE: This code runs before smbios_set_defaults(), so we don't 1014 * yet know which mode (legacy vs. aggregate-table) will be 1015 * required. We therefore add the binary blob to both legacy 1016 * (smbios_entries) and aggregate (smbios_tables) tables, and 1017 * delete the one we don't need from smbios_set_defaults(), 1018 * once we know which machine version has been requested. 1019 */ 1020 if (!smbios_entries) { 1021 smbios_entries_len = sizeof(uint16_t); 1022 smbios_entries = g_malloc0(smbios_entries_len); 1023 } 1024 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 1025 size + sizeof(*table)); 1026 table = (struct smbios_table *)(smbios_entries + smbios_entries_len); 1027 table->header.type = SMBIOS_TABLE_ENTRY; 1028 table->header.length = cpu_to_le16(sizeof(*table) + size); 1029 memcpy(table->data, header, size); 1030 smbios_entries_len += sizeof(*table) + size; 1031 (*(uint16_t *)smbios_entries) = 1032 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 1033 /* end: add a copy of the newly loaded blob to legacy smbios_entries */ 1034 1035 return; 1036 } 1037 1038 val = qemu_opt_get(opts, "type"); 1039 if (val) { 1040 unsigned long type = strtoul(val, NULL, 0); 1041 1042 if (type > SMBIOS_MAX_TYPE) { 1043 error_setg(errp, "out of range!"); 1044 return; 1045 } 1046 1047 if (test_bit(type, have_binfile_bitmap)) { 1048 error_setg(errp, "can't add fields, binary file already loaded!"); 1049 return; 1050 } 1051 set_bit(type, have_fields_bitmap); 1052 1053 switch (type) { 1054 case 0: 1055 qemu_opts_validate(opts, qemu_smbios_type0_opts, &err); 1056 if (err) { 1057 error_propagate(errp, err); 1058 return; 1059 } 1060 save_opt(&type0.vendor, opts, "vendor"); 1061 save_opt(&type0.version, opts, "version"); 1062 save_opt(&type0.date, opts, "date"); 1063 type0.uefi = qemu_opt_get_bool(opts, "uefi", false); 1064 1065 val = qemu_opt_get(opts, "release"); 1066 if (val) { 1067 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { 1068 error_setg(errp, "Invalid release"); 1069 return; 1070 } 1071 type0.have_major_minor = true; 1072 } 1073 return; 1074 case 1: 1075 qemu_opts_validate(opts, qemu_smbios_type1_opts, &err); 1076 if (err) { 1077 error_propagate(errp, err); 1078 return; 1079 } 1080 save_opt(&type1.manufacturer, opts, "manufacturer"); 1081 save_opt(&type1.product, opts, "product"); 1082 save_opt(&type1.version, opts, "version"); 1083 save_opt(&type1.serial, opts, "serial"); 1084 save_opt(&type1.sku, opts, "sku"); 1085 save_opt(&type1.family, opts, "family"); 1086 1087 val = qemu_opt_get(opts, "uuid"); 1088 if (val) { 1089 if (qemu_uuid_parse(val, &qemu_uuid) != 0) { 1090 error_setg(errp, "Invalid UUID"); 1091 return; 1092 } 1093 qemu_uuid_set = true; 1094 } 1095 return; 1096 case 2: 1097 qemu_opts_validate(opts, qemu_smbios_type2_opts, &err); 1098 if (err) { 1099 error_propagate(errp, err); 1100 return; 1101 } 1102 save_opt(&type2.manufacturer, opts, "manufacturer"); 1103 save_opt(&type2.product, opts, "product"); 1104 save_opt(&type2.version, opts, "version"); 1105 save_opt(&type2.serial, opts, "serial"); 1106 save_opt(&type2.asset, opts, "asset"); 1107 save_opt(&type2.location, opts, "location"); 1108 return; 1109 case 3: 1110 qemu_opts_validate(opts, qemu_smbios_type3_opts, &err); 1111 if (err) { 1112 error_propagate(errp, err); 1113 return; 1114 } 1115 save_opt(&type3.manufacturer, opts, "manufacturer"); 1116 save_opt(&type3.version, opts, "version"); 1117 save_opt(&type3.serial, opts, "serial"); 1118 save_opt(&type3.asset, opts, "asset"); 1119 save_opt(&type3.sku, opts, "sku"); 1120 return; 1121 case 4: 1122 qemu_opts_validate(opts, qemu_smbios_type4_opts, &err); 1123 if (err) { 1124 error_propagate(errp, err); 1125 return; 1126 } 1127 save_opt(&type4.sock_pfx, opts, "sock_pfx"); 1128 save_opt(&type4.manufacturer, opts, "manufacturer"); 1129 save_opt(&type4.version, opts, "version"); 1130 save_opt(&type4.serial, opts, "serial"); 1131 save_opt(&type4.asset, opts, "asset"); 1132 save_opt(&type4.part, opts, "part"); 1133 return; 1134 case 11: 1135 qemu_opts_validate(opts, qemu_smbios_type11_opts, &err); 1136 if (err) { 1137 error_propagate(errp, err); 1138 return; 1139 } 1140 save_opt_list(&type11.nvalues, &type11.values, opts, "value"); 1141 return; 1142 case 17: 1143 qemu_opts_validate(opts, qemu_smbios_type17_opts, &err); 1144 if (err) { 1145 error_propagate(errp, err); 1146 return; 1147 } 1148 save_opt(&type17.loc_pfx, opts, "loc_pfx"); 1149 save_opt(&type17.bank, opts, "bank"); 1150 save_opt(&type17.manufacturer, opts, "manufacturer"); 1151 save_opt(&type17.serial, opts, "serial"); 1152 save_opt(&type17.asset, opts, "asset"); 1153 save_opt(&type17.part, opts, "part"); 1154 type17.speed = qemu_opt_get_number(opts, "speed", 0); 1155 return; 1156 default: 1157 error_setg(errp, 1158 "Don't know how to build fields for SMBIOS type %ld", 1159 type); 1160 return; 1161 } 1162 } 1163 1164 error_setg(errp, "Must specify type= or file="); 1165 } 1166