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 /* 96 * SVVP requires max_speed and current_speed to be set and not being 97 * 0 which counts as unknown (SMBIOS 3.1.0/Table 21). Set the 98 * default value to 2000MHz as we did before. 99 */ 100 #define DEFAULT_CPU_SPEED 2000 101 102 static struct { 103 const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part; 104 uint64_t max_speed; 105 uint64_t current_speed; 106 } type4 = { 107 .max_speed = DEFAULT_CPU_SPEED, 108 .current_speed = DEFAULT_CPU_SPEED 109 }; 110 111 static struct { 112 size_t nvalues; 113 const char **values; 114 } type11; 115 116 static struct { 117 const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part; 118 uint16_t speed; 119 } type17; 120 121 static QemuOptsList qemu_smbios_opts = { 122 .name = "smbios", 123 .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), 124 .desc = { 125 /* 126 * no elements => accept any params 127 * validation will happen later 128 */ 129 { /* end of list */ } 130 } 131 }; 132 133 static const QemuOptDesc qemu_smbios_file_opts[] = { 134 { 135 .name = "file", 136 .type = QEMU_OPT_STRING, 137 .help = "binary file containing an SMBIOS element", 138 }, 139 { /* end of list */ } 140 }; 141 142 static const QemuOptDesc qemu_smbios_type0_opts[] = { 143 { 144 .name = "type", 145 .type = QEMU_OPT_NUMBER, 146 .help = "SMBIOS element type", 147 },{ 148 .name = "vendor", 149 .type = QEMU_OPT_STRING, 150 .help = "vendor name", 151 },{ 152 .name = "version", 153 .type = QEMU_OPT_STRING, 154 .help = "version number", 155 },{ 156 .name = "date", 157 .type = QEMU_OPT_STRING, 158 .help = "release date", 159 },{ 160 .name = "release", 161 .type = QEMU_OPT_STRING, 162 .help = "revision number", 163 },{ 164 .name = "uefi", 165 .type = QEMU_OPT_BOOL, 166 .help = "uefi support", 167 }, 168 { /* end of list */ } 169 }; 170 171 static const QemuOptDesc qemu_smbios_type1_opts[] = { 172 { 173 .name = "type", 174 .type = QEMU_OPT_NUMBER, 175 .help = "SMBIOS element type", 176 },{ 177 .name = "manufacturer", 178 .type = QEMU_OPT_STRING, 179 .help = "manufacturer name", 180 },{ 181 .name = "product", 182 .type = QEMU_OPT_STRING, 183 .help = "product name", 184 },{ 185 .name = "version", 186 .type = QEMU_OPT_STRING, 187 .help = "version number", 188 },{ 189 .name = "serial", 190 .type = QEMU_OPT_STRING, 191 .help = "serial number", 192 },{ 193 .name = "uuid", 194 .type = QEMU_OPT_STRING, 195 .help = "UUID", 196 },{ 197 .name = "sku", 198 .type = QEMU_OPT_STRING, 199 .help = "SKU number", 200 },{ 201 .name = "family", 202 .type = QEMU_OPT_STRING, 203 .help = "family name", 204 }, 205 { /* end of list */ } 206 }; 207 208 static const QemuOptDesc qemu_smbios_type2_opts[] = { 209 { 210 .name = "type", 211 .type = QEMU_OPT_NUMBER, 212 .help = "SMBIOS element type", 213 },{ 214 .name = "manufacturer", 215 .type = QEMU_OPT_STRING, 216 .help = "manufacturer name", 217 },{ 218 .name = "product", 219 .type = QEMU_OPT_STRING, 220 .help = "product name", 221 },{ 222 .name = "version", 223 .type = QEMU_OPT_STRING, 224 .help = "version number", 225 },{ 226 .name = "serial", 227 .type = QEMU_OPT_STRING, 228 .help = "serial number", 229 },{ 230 .name = "asset", 231 .type = QEMU_OPT_STRING, 232 .help = "asset tag number", 233 },{ 234 .name = "location", 235 .type = QEMU_OPT_STRING, 236 .help = "location in chassis", 237 }, 238 { /* end of list */ } 239 }; 240 241 static const QemuOptDesc qemu_smbios_type3_opts[] = { 242 { 243 .name = "type", 244 .type = QEMU_OPT_NUMBER, 245 .help = "SMBIOS element type", 246 },{ 247 .name = "manufacturer", 248 .type = QEMU_OPT_STRING, 249 .help = "manufacturer name", 250 },{ 251 .name = "version", 252 .type = QEMU_OPT_STRING, 253 .help = "version number", 254 },{ 255 .name = "serial", 256 .type = QEMU_OPT_STRING, 257 .help = "serial number", 258 },{ 259 .name = "asset", 260 .type = QEMU_OPT_STRING, 261 .help = "asset tag number", 262 },{ 263 .name = "sku", 264 .type = QEMU_OPT_STRING, 265 .help = "SKU number", 266 }, 267 { /* end of list */ } 268 }; 269 270 static const QemuOptDesc qemu_smbios_type4_opts[] = { 271 { 272 .name = "type", 273 .type = QEMU_OPT_NUMBER, 274 .help = "SMBIOS element type", 275 },{ 276 .name = "sock_pfx", 277 .type = QEMU_OPT_STRING, 278 .help = "socket designation string prefix", 279 },{ 280 .name = "manufacturer", 281 .type = QEMU_OPT_STRING, 282 .help = "manufacturer name", 283 },{ 284 .name = "version", 285 .type = QEMU_OPT_STRING, 286 .help = "version number", 287 },{ 288 .name = "max-speed", 289 .type = QEMU_OPT_NUMBER, 290 .help = "max speed in MHz", 291 },{ 292 .name = "current-speed", 293 .type = QEMU_OPT_NUMBER, 294 .help = "speed at system boot in MHz", 295 },{ 296 .name = "serial", 297 .type = QEMU_OPT_STRING, 298 .help = "serial number", 299 },{ 300 .name = "asset", 301 .type = QEMU_OPT_STRING, 302 .help = "asset tag number", 303 },{ 304 .name = "part", 305 .type = QEMU_OPT_STRING, 306 .help = "part number", 307 }, 308 { /* end of list */ } 309 }; 310 311 static const QemuOptDesc qemu_smbios_type11_opts[] = { 312 { 313 .name = "value", 314 .type = QEMU_OPT_STRING, 315 .help = "OEM string data", 316 }, 317 }; 318 319 static const QemuOptDesc qemu_smbios_type17_opts[] = { 320 { 321 .name = "type", 322 .type = QEMU_OPT_NUMBER, 323 .help = "SMBIOS element type", 324 },{ 325 .name = "loc_pfx", 326 .type = QEMU_OPT_STRING, 327 .help = "device locator string prefix", 328 },{ 329 .name = "bank", 330 .type = QEMU_OPT_STRING, 331 .help = "bank locator string", 332 },{ 333 .name = "manufacturer", 334 .type = QEMU_OPT_STRING, 335 .help = "manufacturer name", 336 },{ 337 .name = "serial", 338 .type = QEMU_OPT_STRING, 339 .help = "serial number", 340 },{ 341 .name = "asset", 342 .type = QEMU_OPT_STRING, 343 .help = "asset tag number", 344 },{ 345 .name = "part", 346 .type = QEMU_OPT_STRING, 347 .help = "part number", 348 },{ 349 .name = "speed", 350 .type = QEMU_OPT_NUMBER, 351 .help = "maximum capable speed", 352 }, 353 { /* end of list */ } 354 }; 355 356 static void smbios_register_config(void) 357 { 358 qemu_add_opts(&qemu_smbios_opts); 359 } 360 361 opts_init(smbios_register_config); 362 363 static void smbios_validate_table(MachineState *ms) 364 { 365 uint32_t expect_t4_count = smbios_legacy ? 366 ms->smp.cpus : smbios_smp_sockets; 367 368 if (smbios_type4_count && smbios_type4_count != expect_t4_count) { 369 error_report("Expected %d SMBIOS Type 4 tables, got %d instead", 370 expect_t4_count, smbios_type4_count); 371 exit(1); 372 } 373 } 374 375 376 /* legacy setup functions for <= 2.0 machines */ 377 static void smbios_add_field(int type, int offset, const void *data, size_t len) 378 { 379 struct smbios_field *field; 380 381 if (!smbios_entries) { 382 smbios_entries_len = sizeof(uint16_t); 383 smbios_entries = g_malloc0(smbios_entries_len); 384 } 385 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 386 sizeof(*field) + len); 387 field = (struct smbios_field *)(smbios_entries + smbios_entries_len); 388 field->header.type = SMBIOS_FIELD_ENTRY; 389 field->header.length = cpu_to_le16(sizeof(*field) + len); 390 391 field->type = type; 392 field->offset = cpu_to_le16(offset); 393 memcpy(field->data, data, len); 394 395 smbios_entries_len += sizeof(*field) + len; 396 (*(uint16_t *)smbios_entries) = 397 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 398 } 399 400 static void smbios_maybe_add_str(int type, int offset, const char *data) 401 { 402 if (data) { 403 smbios_add_field(type, offset, data, strlen(data) + 1); 404 } 405 } 406 407 static void smbios_build_type_0_fields(void) 408 { 409 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str), 410 type0.vendor); 411 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str), 412 type0.version); 413 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, 414 bios_release_date_str), 415 type0.date); 416 if (type0.have_major_minor) { 417 smbios_add_field(0, offsetof(struct smbios_type_0, 418 system_bios_major_release), 419 &type0.major, 1); 420 smbios_add_field(0, offsetof(struct smbios_type_0, 421 system_bios_minor_release), 422 &type0.minor, 1); 423 } 424 } 425 426 static void smbios_build_type_1_fields(void) 427 { 428 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str), 429 type1.manufacturer); 430 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str), 431 type1.product); 432 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str), 433 type1.version); 434 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str), 435 type1.serial); 436 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str), 437 type1.sku); 438 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str), 439 type1.family); 440 if (qemu_uuid_set) { 441 /* We don't encode the UUID in the "wire format" here because this 442 * function is for legacy mode and needs to keep the guest ABI, and 443 * because we don't know what's the SMBIOS version advertised by the 444 * BIOS. 445 */ 446 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 447 &qemu_uuid, 16); 448 } 449 } 450 451 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length) 452 { 453 if (!smbios_legacy) { 454 *length = 0; 455 return NULL; 456 } 457 458 if (!smbios_immutable) { 459 smbios_build_type_0_fields(); 460 smbios_build_type_1_fields(); 461 smbios_validate_table(ms); 462 smbios_immutable = true; 463 } 464 *length = smbios_entries_len; 465 return smbios_entries; 466 } 467 /* end: legacy setup functions for <= 2.0 machines */ 468 469 470 bool smbios_skip_table(uint8_t type, bool required_table) 471 { 472 if (test_bit(type, have_binfile_bitmap)) { 473 return true; /* user provided their own binary blob(s) */ 474 } 475 if (test_bit(type, have_fields_bitmap)) { 476 return false; /* user provided fields via command line */ 477 } 478 if (smbios_have_defaults && required_table) { 479 return false; /* we're building tables, and this one's required */ 480 } 481 return true; 482 } 483 484 static void smbios_build_type_0_table(void) 485 { 486 SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */ 487 488 SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor); 489 SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version); 490 491 t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */ 492 493 SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date); 494 495 t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */ 496 497 t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */ 498 t->bios_characteristics_extension_bytes[0] = 0; 499 t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */ 500 if (type0.uefi) { 501 t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */ 502 } 503 504 if (type0.have_major_minor) { 505 t->system_bios_major_release = type0.major; 506 t->system_bios_minor_release = type0.minor; 507 } else { 508 t->system_bios_major_release = 0; 509 t->system_bios_minor_release = 0; 510 } 511 512 /* hardcoded in SeaBIOS */ 513 t->embedded_controller_major_release = 0xFF; 514 t->embedded_controller_minor_release = 0xFF; 515 516 SMBIOS_BUILD_TABLE_POST; 517 } 518 519 /* Encode UUID from the big endian encoding described on RFC4122 to the wire 520 * format specified by SMBIOS version 2.6. 521 */ 522 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in) 523 { 524 memcpy(uuid, in, 16); 525 if (smbios_uuid_encoded) { 526 uuid->time_low = bswap32(uuid->time_low); 527 uuid->time_mid = bswap16(uuid->time_mid); 528 uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version); 529 } 530 } 531 532 static void smbios_build_type_1_table(void) 533 { 534 SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */ 535 536 SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer); 537 SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product); 538 SMBIOS_TABLE_SET_STR(1, version_str, type1.version); 539 SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial); 540 if (qemu_uuid_set) { 541 smbios_encode_uuid(&t->uuid, &qemu_uuid); 542 } else { 543 memset(&t->uuid, 0, 16); 544 } 545 t->wake_up_type = 0x06; /* power switch */ 546 SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku); 547 SMBIOS_TABLE_SET_STR(1, family_str, type1.family); 548 549 SMBIOS_BUILD_TABLE_POST; 550 } 551 552 static void smbios_build_type_2_table(void) 553 { 554 SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */ 555 556 SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer); 557 SMBIOS_TABLE_SET_STR(2, product_str, type2.product); 558 SMBIOS_TABLE_SET_STR(2, version_str, type2.version); 559 SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial); 560 SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset); 561 t->feature_flags = 0x01; /* Motherboard */ 562 SMBIOS_TABLE_SET_STR(2, location_str, type2.location); 563 t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */ 564 t->board_type = 0x0A; /* Motherboard */ 565 t->contained_element_count = 0; 566 567 SMBIOS_BUILD_TABLE_POST; 568 } 569 570 static void smbios_build_type_3_table(void) 571 { 572 SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */ 573 574 SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer); 575 t->type = 0x01; /* Other */ 576 SMBIOS_TABLE_SET_STR(3, version_str, type3.version); 577 SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial); 578 SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset); 579 t->boot_up_state = 0x03; /* Safe */ 580 t->power_supply_state = 0x03; /* Safe */ 581 t->thermal_state = 0x03; /* Safe */ 582 t->security_status = 0x02; /* Unknown */ 583 t->oem_defined = cpu_to_le32(0); 584 t->height = 0; 585 t->number_of_power_cords = 0; 586 t->contained_element_count = 0; 587 t->contained_element_record_length = 0; 588 SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku); 589 590 SMBIOS_BUILD_TABLE_POST; 591 } 592 593 static void smbios_build_type_4_table(MachineState *ms, unsigned instance) 594 { 595 char sock_str[128]; 596 597 SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */ 598 599 snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance); 600 SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str); 601 t->processor_type = 0x03; /* CPU */ 602 t->processor_family = 0x01; /* Other */ 603 SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer); 604 t->processor_id[0] = cpu_to_le32(smbios_cpuid_version); 605 t->processor_id[1] = cpu_to_le32(smbios_cpuid_features); 606 SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version); 607 t->voltage = 0; 608 t->external_clock = cpu_to_le16(0); /* Unknown */ 609 t->max_speed = cpu_to_le16(type4.max_speed); 610 t->current_speed = cpu_to_le16(type4.current_speed); 611 t->status = 0x41; /* Socket populated, CPU enabled */ 612 t->processor_upgrade = 0x01; /* Other */ 613 t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 614 t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 615 t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 616 SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial); 617 SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset); 618 SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part); 619 t->core_count = t->core_enabled = ms->smp.cores; 620 t->thread_count = ms->smp.threads; 621 t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ 622 t->processor_family2 = cpu_to_le16(0x01); /* Other */ 623 624 SMBIOS_BUILD_TABLE_POST; 625 smbios_type4_count++; 626 } 627 628 static void smbios_build_type_11_table(void) 629 { 630 char count_str[128]; 631 size_t i; 632 633 if (type11.nvalues == 0) { 634 return; 635 } 636 637 SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */ 638 639 snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues); 640 t->count = type11.nvalues; 641 642 for (i = 0; i < type11.nvalues; i++) { 643 SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]); 644 } 645 646 SMBIOS_BUILD_TABLE_POST; 647 } 648 649 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */ 650 651 static void smbios_build_type_16_table(unsigned dimm_cnt) 652 { 653 uint64_t size_kb; 654 655 SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */ 656 657 t->location = 0x01; /* Other */ 658 t->use = 0x03; /* System memory */ 659 t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */ 660 size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB; 661 if (size_kb < MAX_T16_STD_SZ) { 662 t->maximum_capacity = cpu_to_le32(size_kb); 663 t->extended_maximum_capacity = cpu_to_le64(0); 664 } else { 665 t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ); 666 t->extended_maximum_capacity = cpu_to_le64(ram_size); 667 } 668 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 669 t->number_of_memory_devices = cpu_to_le16(dimm_cnt); 670 671 SMBIOS_BUILD_TABLE_POST; 672 } 673 674 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */ 675 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */ 676 677 static void smbios_build_type_17_table(unsigned instance, uint64_t size) 678 { 679 char loc_str[128]; 680 uint64_t size_mb; 681 682 SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */ 683 684 t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 685 t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */ 686 t->total_width = cpu_to_le16(0xFFFF); /* Unknown */ 687 t->data_width = cpu_to_le16(0xFFFF); /* Unknown */ 688 size_mb = QEMU_ALIGN_UP(size, MiB) / MiB; 689 if (size_mb < MAX_T17_STD_SZ) { 690 t->size = cpu_to_le16(size_mb); 691 t->extended_size = cpu_to_le32(0); 692 } else { 693 assert(size_mb < MAX_T17_EXT_SZ); 694 t->size = cpu_to_le16(MAX_T17_STD_SZ); 695 t->extended_size = cpu_to_le32(size_mb); 696 } 697 t->form_factor = 0x09; /* DIMM */ 698 t->device_set = 0; /* Not in a set */ 699 snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance); 700 SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str); 701 SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank); 702 t->memory_type = 0x07; /* RAM */ 703 t->type_detail = cpu_to_le16(0x02); /* Other */ 704 t->speed = cpu_to_le16(type17.speed); 705 SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer); 706 SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial); 707 SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset); 708 SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part); 709 t->attributes = 0; /* Unknown */ 710 t->configured_clock_speed = t->speed; /* reuse value for max speed */ 711 t->minimum_voltage = cpu_to_le16(0); /* Unknown */ 712 t->maximum_voltage = cpu_to_le16(0); /* Unknown */ 713 t->configured_voltage = cpu_to_le16(0); /* Unknown */ 714 715 SMBIOS_BUILD_TABLE_POST; 716 } 717 718 static void smbios_build_type_19_table(unsigned instance, 719 uint64_t start, uint64_t size) 720 { 721 uint64_t end, start_kb, end_kb; 722 723 SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */ 724 725 end = start + size - 1; 726 assert(end > start); 727 start_kb = start / KiB; 728 end_kb = end / KiB; 729 if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) { 730 t->starting_address = cpu_to_le32(start_kb); 731 t->ending_address = cpu_to_le32(end_kb); 732 t->extended_starting_address = 733 t->extended_ending_address = cpu_to_le64(0); 734 } else { 735 t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX); 736 t->extended_starting_address = cpu_to_le64(start); 737 t->extended_ending_address = cpu_to_le64(end); 738 } 739 t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */ 740 t->partition_width = 1; /* One device per row */ 741 742 SMBIOS_BUILD_TABLE_POST; 743 } 744 745 static void smbios_build_type_32_table(void) 746 { 747 SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */ 748 749 memset(t->reserved, 0, 6); 750 t->boot_status = 0; /* No errors detected */ 751 752 SMBIOS_BUILD_TABLE_POST; 753 } 754 755 static void smbios_build_type_127_table(void) 756 { 757 SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */ 758 SMBIOS_BUILD_TABLE_POST; 759 } 760 761 void smbios_set_cpuid(uint32_t version, uint32_t features) 762 { 763 smbios_cpuid_version = version; 764 smbios_cpuid_features = features; 765 } 766 767 #define SMBIOS_SET_DEFAULT(field, value) \ 768 if (!field) { \ 769 field = value; \ 770 } 771 772 void smbios_set_defaults(const char *manufacturer, const char *product, 773 const char *version, bool legacy_mode, 774 bool uuid_encoded, SmbiosEntryPointType ep_type) 775 { 776 smbios_have_defaults = true; 777 smbios_legacy = legacy_mode; 778 smbios_uuid_encoded = uuid_encoded; 779 smbios_ep_type = ep_type; 780 781 /* drop unwanted version of command-line file blob(s) */ 782 if (smbios_legacy) { 783 g_free(smbios_tables); 784 /* in legacy mode, also complain if fields were given for types > 1 */ 785 if (find_next_bit(have_fields_bitmap, 786 SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) { 787 error_report("can't process fields for smbios " 788 "types > 1 on machine versions < 2.1!"); 789 exit(1); 790 } 791 } else { 792 g_free(smbios_entries); 793 } 794 795 SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer); 796 SMBIOS_SET_DEFAULT(type1.product, product); 797 SMBIOS_SET_DEFAULT(type1.version, version); 798 SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer); 799 SMBIOS_SET_DEFAULT(type2.product, product); 800 SMBIOS_SET_DEFAULT(type2.version, version); 801 SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer); 802 SMBIOS_SET_DEFAULT(type3.version, version); 803 SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU"); 804 SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer); 805 SMBIOS_SET_DEFAULT(type4.version, version); 806 SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM"); 807 SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer); 808 } 809 810 static void smbios_entry_point_setup(void) 811 { 812 switch (smbios_ep_type) { 813 case SMBIOS_ENTRY_POINT_21: 814 memcpy(ep.ep21.anchor_string, "_SM_", 4); 815 memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5); 816 ep.ep21.length = sizeof(struct smbios_21_entry_point); 817 ep.ep21.entry_point_revision = 0; /* formatted_area reserved */ 818 memset(ep.ep21.formatted_area, 0, 5); 819 820 /* compliant with smbios spec v2.8 */ 821 ep.ep21.smbios_major_version = 2; 822 ep.ep21.smbios_minor_version = 8; 823 ep.ep21.smbios_bcd_revision = 0x28; 824 825 /* set during table construction, but BIOS may override: */ 826 ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len); 827 ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max); 828 ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt); 829 830 /* BIOS must recalculate */ 831 ep.ep21.checksum = 0; 832 ep.ep21.intermediate_checksum = 0; 833 ep.ep21.structure_table_address = cpu_to_le32(0); 834 835 break; 836 case SMBIOS_ENTRY_POINT_30: 837 memcpy(ep.ep30.anchor_string, "_SM3_", 5); 838 ep.ep30.length = sizeof(struct smbios_30_entry_point); 839 ep.ep30.entry_point_revision = 1; 840 ep.ep30.reserved = 0; 841 842 /* compliant with smbios spec 3.0 */ 843 ep.ep30.smbios_major_version = 3; 844 ep.ep30.smbios_minor_version = 0; 845 ep.ep30.smbios_doc_rev = 0; 846 847 /* set during table construct, but BIOS might override */ 848 ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len); 849 850 /* BIOS must recalculate */ 851 ep.ep30.checksum = 0; 852 ep.ep30.structure_table_address = cpu_to_le64(0); 853 854 break; 855 default: 856 abort(); 857 break; 858 } 859 } 860 861 void smbios_get_tables(MachineState *ms, 862 const struct smbios_phys_mem_area *mem_array, 863 const unsigned int mem_array_size, 864 uint8_t **tables, size_t *tables_len, 865 uint8_t **anchor, size_t *anchor_len) 866 { 867 unsigned i, dimm_cnt; 868 869 if (smbios_legacy) { 870 *tables = *anchor = NULL; 871 *tables_len = *anchor_len = 0; 872 return; 873 } 874 875 if (!smbios_immutable) { 876 smbios_build_type_0_table(); 877 smbios_build_type_1_table(); 878 smbios_build_type_2_table(); 879 smbios_build_type_3_table(); 880 881 smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus, 882 ms->smp.cores * ms->smp.threads); 883 assert(smbios_smp_sockets >= 1); 884 885 for (i = 0; i < smbios_smp_sockets; i++) { 886 smbios_build_type_4_table(ms, i); 887 } 888 889 smbios_build_type_11_table(); 890 891 #define MAX_DIMM_SZ (16 * GiB) 892 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \ 893 : ((ram_size - 1) % MAX_DIMM_SZ) + 1) 894 895 dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ; 896 897 smbios_build_type_16_table(dimm_cnt); 898 899 for (i = 0; i < dimm_cnt; i++) { 900 smbios_build_type_17_table(i, GET_DIMM_SZ); 901 } 902 903 for (i = 0; i < mem_array_size; i++) { 904 smbios_build_type_19_table(i, mem_array[i].address, 905 mem_array[i].length); 906 } 907 908 smbios_build_type_32_table(); 909 smbios_build_type_38_table(); 910 smbios_build_type_127_table(); 911 912 smbios_validate_table(ms); 913 smbios_entry_point_setup(); 914 smbios_immutable = true; 915 } 916 917 /* return tables blob and entry point (anchor), and their sizes */ 918 *tables = smbios_tables; 919 *tables_len = smbios_tables_len; 920 *anchor = (uint8_t *)&ep; 921 922 /* calculate length based on anchor string */ 923 if (!strncmp((char *)&ep, "_SM_", 4)) { 924 *anchor_len = sizeof(struct smbios_21_entry_point); 925 } else if (!strncmp((char *)&ep, "_SM3_", 5)) { 926 *anchor_len = sizeof(struct smbios_30_entry_point); 927 } else { 928 abort(); 929 } 930 } 931 932 static void save_opt(const char **dest, QemuOpts *opts, const char *name) 933 { 934 const char *val = qemu_opt_get(opts, name); 935 936 if (val) { 937 *dest = val; 938 } 939 } 940 941 942 struct opt_list { 943 const char *name; 944 size_t *ndest; 945 const char ***dest; 946 }; 947 948 static int save_opt_one(void *opaque, 949 const char *name, const char *value, 950 Error **errp) 951 { 952 struct opt_list *opt = opaque; 953 954 if (!g_str_equal(name, opt->name)) { 955 return 0; 956 } 957 958 *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1); 959 (*opt->dest)[*opt->ndest] = value; 960 (*opt->ndest)++; 961 return 0; 962 } 963 964 static void save_opt_list(size_t *ndest, const char ***dest, 965 QemuOpts *opts, const char *name) 966 { 967 struct opt_list opt = { 968 name, ndest, dest, 969 }; 970 qemu_opt_foreach(opts, save_opt_one, &opt, NULL); 971 } 972 973 void smbios_entry_add(QemuOpts *opts, Error **errp) 974 { 975 const char *val; 976 977 assert(!smbios_immutable); 978 979 val = qemu_opt_get(opts, "file"); 980 if (val) { 981 struct smbios_structure_header *header; 982 int size; 983 struct smbios_table *table; /* legacy mode only */ 984 985 if (!qemu_opts_validate(opts, qemu_smbios_file_opts, errp)) { 986 return; 987 } 988 989 size = get_image_size(val); 990 if (size == -1 || size < sizeof(struct smbios_structure_header)) { 991 error_setg(errp, "Cannot read SMBIOS file %s", val); 992 return; 993 } 994 995 /* 996 * NOTE: standard double '\0' terminator expected, per smbios spec. 997 * (except in legacy mode, where the second '\0' is implicit and 998 * will be inserted by the BIOS). 999 */ 1000 smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size); 1001 header = (struct smbios_structure_header *)(smbios_tables + 1002 smbios_tables_len); 1003 1004 if (load_image_size(val, (uint8_t *)header, size) != size) { 1005 error_setg(errp, "Failed to load SMBIOS file %s", val); 1006 return; 1007 } 1008 1009 if (test_bit(header->type, have_fields_bitmap)) { 1010 error_setg(errp, 1011 "can't load type %d struct, fields already specified!", 1012 header->type); 1013 return; 1014 } 1015 set_bit(header->type, have_binfile_bitmap); 1016 1017 if (header->type == 4) { 1018 smbios_type4_count++; 1019 } 1020 1021 smbios_tables_len += size; 1022 if (size > smbios_table_max) { 1023 smbios_table_max = size; 1024 } 1025 smbios_table_cnt++; 1026 1027 /* add a copy of the newly loaded blob to legacy smbios_entries */ 1028 /* NOTE: This code runs before smbios_set_defaults(), so we don't 1029 * yet know which mode (legacy vs. aggregate-table) will be 1030 * required. We therefore add the binary blob to both legacy 1031 * (smbios_entries) and aggregate (smbios_tables) tables, and 1032 * delete the one we don't need from smbios_set_defaults(), 1033 * once we know which machine version has been requested. 1034 */ 1035 if (!smbios_entries) { 1036 smbios_entries_len = sizeof(uint16_t); 1037 smbios_entries = g_malloc0(smbios_entries_len); 1038 } 1039 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 1040 size + sizeof(*table)); 1041 table = (struct smbios_table *)(smbios_entries + smbios_entries_len); 1042 table->header.type = SMBIOS_TABLE_ENTRY; 1043 table->header.length = cpu_to_le16(sizeof(*table) + size); 1044 memcpy(table->data, header, size); 1045 smbios_entries_len += sizeof(*table) + size; 1046 (*(uint16_t *)smbios_entries) = 1047 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 1048 /* end: add a copy of the newly loaded blob to legacy smbios_entries */ 1049 1050 return; 1051 } 1052 1053 val = qemu_opt_get(opts, "type"); 1054 if (val) { 1055 unsigned long type = strtoul(val, NULL, 0); 1056 1057 if (type > SMBIOS_MAX_TYPE) { 1058 error_setg(errp, "out of range!"); 1059 return; 1060 } 1061 1062 if (test_bit(type, have_binfile_bitmap)) { 1063 error_setg(errp, "can't add fields, binary file already loaded!"); 1064 return; 1065 } 1066 set_bit(type, have_fields_bitmap); 1067 1068 switch (type) { 1069 case 0: 1070 if (!qemu_opts_validate(opts, qemu_smbios_type0_opts, errp)) { 1071 return; 1072 } 1073 save_opt(&type0.vendor, opts, "vendor"); 1074 save_opt(&type0.version, opts, "version"); 1075 save_opt(&type0.date, opts, "date"); 1076 type0.uefi = qemu_opt_get_bool(opts, "uefi", false); 1077 1078 val = qemu_opt_get(opts, "release"); 1079 if (val) { 1080 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { 1081 error_setg(errp, "Invalid release"); 1082 return; 1083 } 1084 type0.have_major_minor = true; 1085 } 1086 return; 1087 case 1: 1088 if (!qemu_opts_validate(opts, qemu_smbios_type1_opts, errp)) { 1089 return; 1090 } 1091 save_opt(&type1.manufacturer, opts, "manufacturer"); 1092 save_opt(&type1.product, opts, "product"); 1093 save_opt(&type1.version, opts, "version"); 1094 save_opt(&type1.serial, opts, "serial"); 1095 save_opt(&type1.sku, opts, "sku"); 1096 save_opt(&type1.family, opts, "family"); 1097 1098 val = qemu_opt_get(opts, "uuid"); 1099 if (val) { 1100 if (qemu_uuid_parse(val, &qemu_uuid) != 0) { 1101 error_setg(errp, "Invalid UUID"); 1102 return; 1103 } 1104 qemu_uuid_set = true; 1105 } 1106 return; 1107 case 2: 1108 if (!qemu_opts_validate(opts, qemu_smbios_type2_opts, errp)) { 1109 return; 1110 } 1111 save_opt(&type2.manufacturer, opts, "manufacturer"); 1112 save_opt(&type2.product, opts, "product"); 1113 save_opt(&type2.version, opts, "version"); 1114 save_opt(&type2.serial, opts, "serial"); 1115 save_opt(&type2.asset, opts, "asset"); 1116 save_opt(&type2.location, opts, "location"); 1117 return; 1118 case 3: 1119 if (!qemu_opts_validate(opts, qemu_smbios_type3_opts, errp)) { 1120 return; 1121 } 1122 save_opt(&type3.manufacturer, opts, "manufacturer"); 1123 save_opt(&type3.version, opts, "version"); 1124 save_opt(&type3.serial, opts, "serial"); 1125 save_opt(&type3.asset, opts, "asset"); 1126 save_opt(&type3.sku, opts, "sku"); 1127 return; 1128 case 4: 1129 if (!qemu_opts_validate(opts, qemu_smbios_type4_opts, errp)) { 1130 return; 1131 } 1132 save_opt(&type4.sock_pfx, opts, "sock_pfx"); 1133 save_opt(&type4.manufacturer, opts, "manufacturer"); 1134 save_opt(&type4.version, opts, "version"); 1135 save_opt(&type4.serial, opts, "serial"); 1136 save_opt(&type4.asset, opts, "asset"); 1137 save_opt(&type4.part, opts, "part"); 1138 type4.max_speed = qemu_opt_get_number(opts, "max-speed", 1139 DEFAULT_CPU_SPEED); 1140 type4.current_speed = qemu_opt_get_number(opts, "current-speed", 1141 DEFAULT_CPU_SPEED); 1142 if (type4.max_speed > UINT16_MAX || 1143 type4.current_speed > UINT16_MAX) { 1144 error_setg(errp, "SMBIOS CPU speed is too large (> %d)", 1145 UINT16_MAX); 1146 } 1147 return; 1148 case 11: 1149 if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) { 1150 return; 1151 } 1152 save_opt_list(&type11.nvalues, &type11.values, opts, "value"); 1153 return; 1154 case 17: 1155 if (!qemu_opts_validate(opts, qemu_smbios_type17_opts, errp)) { 1156 return; 1157 } 1158 save_opt(&type17.loc_pfx, opts, "loc_pfx"); 1159 save_opt(&type17.bank, opts, "bank"); 1160 save_opt(&type17.manufacturer, opts, "manufacturer"); 1161 save_opt(&type17.serial, opts, "serial"); 1162 save_opt(&type17.asset, opts, "asset"); 1163 save_opt(&type17.part, opts, "part"); 1164 type17.speed = qemu_opt_get_number(opts, "speed", 0); 1165 return; 1166 default: 1167 error_setg(errp, 1168 "Don't know how to build fields for SMBIOS type %ld", 1169 type); 1170 return; 1171 } 1172 } 1173 1174 error_setg(errp, "Must specify type= or file="); 1175 } 1176