1 /* 2 * SMBIOS Support 3 * 4 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. 5 * Copyright (C) 2013 Red Hat, Inc. 6 * 7 * Authors: 8 * Alex Williamson <alex.williamson@hp.com> 9 * Markus Armbruster <armbru@redhat.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2. See 12 * the COPYING file in the top-level directory. 13 * 14 * Contributions after 2012-01-13 are licensed under the terms of the 15 * GNU GPL, version 2 or (at your option) any later version. 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qapi/error.h" 20 #include "qemu/config-file.h" 21 #include "qemu/error-report.h" 22 #include "sysemu/sysemu.h" 23 #include "qemu/uuid.h" 24 #include "sysemu/cpus.h" 25 #include "hw/smbios/smbios.h" 26 #include "hw/loader.h" 27 #include "exec/cpu-common.h" 28 #include "smbios_build.h" 29 #include "hw/smbios/ipmi.h" 30 31 /* legacy structures and constants for <= 2.0 machines */ 32 struct smbios_header { 33 uint16_t length; 34 uint8_t type; 35 } QEMU_PACKED; 36 37 struct smbios_field { 38 struct smbios_header header; 39 uint8_t type; 40 uint16_t offset; 41 uint8_t data[]; 42 } QEMU_PACKED; 43 44 struct smbios_table { 45 struct smbios_header header; 46 uint8_t data[]; 47 } QEMU_PACKED; 48 49 #define SMBIOS_FIELD_ENTRY 0 50 #define SMBIOS_TABLE_ENTRY 1 51 52 static uint8_t *smbios_entries; 53 static size_t smbios_entries_len; 54 static bool smbios_legacy = true; 55 static bool smbios_uuid_encoded = true; 56 /* end: legacy structures & constants for <= 2.0 machines */ 57 58 59 uint8_t *smbios_tables; 60 size_t smbios_tables_len; 61 unsigned smbios_table_max; 62 unsigned smbios_table_cnt; 63 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21; 64 65 static SmbiosEntryPoint ep; 66 67 static int smbios_type4_count = 0; 68 static bool smbios_immutable; 69 static bool smbios_have_defaults; 70 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets; 71 72 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1); 73 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1); 74 75 static struct { 76 const char *vendor, *version, *date; 77 bool have_major_minor, uefi; 78 uint8_t major, minor; 79 } type0; 80 81 static struct { 82 const char *manufacturer, *product, *version, *serial, *sku, *family; 83 /* uuid is in qemu_uuid */ 84 } type1; 85 86 static struct { 87 const char *manufacturer, *product, *version, *serial, *asset, *location; 88 } type2; 89 90 static struct { 91 const char *manufacturer, *version, *serial, *asset, *sku; 92 } type3; 93 94 static struct { 95 const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part; 96 } type4; 97 98 static struct { 99 size_t nvalues; 100 const char **values; 101 } type11; 102 103 static struct { 104 const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part; 105 uint16_t speed; 106 } type17; 107 108 static QemuOptsList qemu_smbios_opts = { 109 .name = "smbios", 110 .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), 111 .desc = { 112 /* 113 * no elements => accept any params 114 * validation will happen later 115 */ 116 { /* end of list */ } 117 } 118 }; 119 120 static const QemuOptDesc qemu_smbios_file_opts[] = { 121 { 122 .name = "file", 123 .type = QEMU_OPT_STRING, 124 .help = "binary file containing an SMBIOS element", 125 }, 126 { /* end of list */ } 127 }; 128 129 static const QemuOptDesc qemu_smbios_type0_opts[] = { 130 { 131 .name = "type", 132 .type = QEMU_OPT_NUMBER, 133 .help = "SMBIOS element type", 134 },{ 135 .name = "vendor", 136 .type = QEMU_OPT_STRING, 137 .help = "vendor name", 138 },{ 139 .name = "version", 140 .type = QEMU_OPT_STRING, 141 .help = "version number", 142 },{ 143 .name = "date", 144 .type = QEMU_OPT_STRING, 145 .help = "release date", 146 },{ 147 .name = "release", 148 .type = QEMU_OPT_STRING, 149 .help = "revision number", 150 },{ 151 .name = "uefi", 152 .type = QEMU_OPT_BOOL, 153 .help = "uefi support", 154 }, 155 { /* end of list */ } 156 }; 157 158 static const QemuOptDesc qemu_smbios_type1_opts[] = { 159 { 160 .name = "type", 161 .type = QEMU_OPT_NUMBER, 162 .help = "SMBIOS element type", 163 },{ 164 .name = "manufacturer", 165 .type = QEMU_OPT_STRING, 166 .help = "manufacturer name", 167 },{ 168 .name = "product", 169 .type = QEMU_OPT_STRING, 170 .help = "product name", 171 },{ 172 .name = "version", 173 .type = QEMU_OPT_STRING, 174 .help = "version number", 175 },{ 176 .name = "serial", 177 .type = QEMU_OPT_STRING, 178 .help = "serial number", 179 },{ 180 .name = "uuid", 181 .type = QEMU_OPT_STRING, 182 .help = "UUID", 183 },{ 184 .name = "sku", 185 .type = QEMU_OPT_STRING, 186 .help = "SKU number", 187 },{ 188 .name = "family", 189 .type = QEMU_OPT_STRING, 190 .help = "family name", 191 }, 192 { /* end of list */ } 193 }; 194 195 static const QemuOptDesc qemu_smbios_type2_opts[] = { 196 { 197 .name = "type", 198 .type = QEMU_OPT_NUMBER, 199 .help = "SMBIOS element type", 200 },{ 201 .name = "manufacturer", 202 .type = QEMU_OPT_STRING, 203 .help = "manufacturer name", 204 },{ 205 .name = "product", 206 .type = QEMU_OPT_STRING, 207 .help = "product name", 208 },{ 209 .name = "version", 210 .type = QEMU_OPT_STRING, 211 .help = "version number", 212 },{ 213 .name = "serial", 214 .type = QEMU_OPT_STRING, 215 .help = "serial number", 216 },{ 217 .name = "asset", 218 .type = QEMU_OPT_STRING, 219 .help = "asset tag number", 220 },{ 221 .name = "location", 222 .type = QEMU_OPT_STRING, 223 .help = "location in chassis", 224 }, 225 { /* end of list */ } 226 }; 227 228 static const QemuOptDesc qemu_smbios_type3_opts[] = { 229 { 230 .name = "type", 231 .type = QEMU_OPT_NUMBER, 232 .help = "SMBIOS element type", 233 },{ 234 .name = "manufacturer", 235 .type = QEMU_OPT_STRING, 236 .help = "manufacturer name", 237 },{ 238 .name = "version", 239 .type = QEMU_OPT_STRING, 240 .help = "version number", 241 },{ 242 .name = "serial", 243 .type = QEMU_OPT_STRING, 244 .help = "serial number", 245 },{ 246 .name = "asset", 247 .type = QEMU_OPT_STRING, 248 .help = "asset tag number", 249 },{ 250 .name = "sku", 251 .type = QEMU_OPT_STRING, 252 .help = "SKU number", 253 }, 254 { /* end of list */ } 255 }; 256 257 static const QemuOptDesc qemu_smbios_type4_opts[] = { 258 { 259 .name = "type", 260 .type = QEMU_OPT_NUMBER, 261 .help = "SMBIOS element type", 262 },{ 263 .name = "sock_pfx", 264 .type = QEMU_OPT_STRING, 265 .help = "socket designation string prefix", 266 },{ 267 .name = "manufacturer", 268 .type = QEMU_OPT_STRING, 269 .help = "manufacturer name", 270 },{ 271 .name = "version", 272 .type = QEMU_OPT_STRING, 273 .help = "version number", 274 },{ 275 .name = "serial", 276 .type = QEMU_OPT_STRING, 277 .help = "serial number", 278 },{ 279 .name = "asset", 280 .type = QEMU_OPT_STRING, 281 .help = "asset tag number", 282 },{ 283 .name = "part", 284 .type = QEMU_OPT_STRING, 285 .help = "part number", 286 }, 287 { /* end of list */ } 288 }; 289 290 static const QemuOptDesc qemu_smbios_type11_opts[] = { 291 { 292 .name = "value", 293 .type = QEMU_OPT_STRING, 294 .help = "OEM string data", 295 }, 296 }; 297 298 static const QemuOptDesc qemu_smbios_type17_opts[] = { 299 { 300 .name = "type", 301 .type = QEMU_OPT_NUMBER, 302 .help = "SMBIOS element type", 303 },{ 304 .name = "loc_pfx", 305 .type = QEMU_OPT_STRING, 306 .help = "device locator string prefix", 307 },{ 308 .name = "bank", 309 .type = QEMU_OPT_STRING, 310 .help = "bank locator string", 311 },{ 312 .name = "manufacturer", 313 .type = QEMU_OPT_STRING, 314 .help = "manufacturer name", 315 },{ 316 .name = "serial", 317 .type = QEMU_OPT_STRING, 318 .help = "serial number", 319 },{ 320 .name = "asset", 321 .type = QEMU_OPT_STRING, 322 .help = "asset tag number", 323 },{ 324 .name = "part", 325 .type = QEMU_OPT_STRING, 326 .help = "part number", 327 },{ 328 .name = "speed", 329 .type = QEMU_OPT_NUMBER, 330 .help = "maximum capable speed", 331 }, 332 { /* end of list */ } 333 }; 334 335 static void smbios_register_config(void) 336 { 337 qemu_add_opts(&qemu_smbios_opts); 338 } 339 340 opts_init(smbios_register_config); 341 342 static void smbios_validate_table(void) 343 { 344 uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets; 345 346 if (smbios_type4_count && smbios_type4_count != expect_t4_count) { 347 error_report("Expected %d SMBIOS Type 4 tables, got %d instead", 348 expect_t4_count, smbios_type4_count); 349 exit(1); 350 } 351 } 352 353 354 /* legacy setup functions for <= 2.0 machines */ 355 static void smbios_add_field(int type, int offset, const void *data, size_t len) 356 { 357 struct smbios_field *field; 358 359 if (!smbios_entries) { 360 smbios_entries_len = sizeof(uint16_t); 361 smbios_entries = g_malloc0(smbios_entries_len); 362 } 363 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 364 sizeof(*field) + len); 365 field = (struct smbios_field *)(smbios_entries + smbios_entries_len); 366 field->header.type = SMBIOS_FIELD_ENTRY; 367 field->header.length = cpu_to_le16(sizeof(*field) + len); 368 369 field->type = type; 370 field->offset = cpu_to_le16(offset); 371 memcpy(field->data, data, len); 372 373 smbios_entries_len += sizeof(*field) + len; 374 (*(uint16_t *)smbios_entries) = 375 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 376 } 377 378 static void smbios_maybe_add_str(int type, int offset, const char *data) 379 { 380 if (data) { 381 smbios_add_field(type, offset, data, strlen(data) + 1); 382 } 383 } 384 385 static void smbios_build_type_0_fields(void) 386 { 387 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str), 388 type0.vendor); 389 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str), 390 type0.version); 391 smbios_maybe_add_str(0, offsetof(struct smbios_type_0, 392 bios_release_date_str), 393 type0.date); 394 if (type0.have_major_minor) { 395 smbios_add_field(0, offsetof(struct smbios_type_0, 396 system_bios_major_release), 397 &type0.major, 1); 398 smbios_add_field(0, offsetof(struct smbios_type_0, 399 system_bios_minor_release), 400 &type0.minor, 1); 401 } 402 } 403 404 static void smbios_build_type_1_fields(void) 405 { 406 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str), 407 type1.manufacturer); 408 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str), 409 type1.product); 410 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str), 411 type1.version); 412 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str), 413 type1.serial); 414 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str), 415 type1.sku); 416 smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str), 417 type1.family); 418 if (qemu_uuid_set) { 419 /* We don't encode the UUID in the "wire format" here because this 420 * function is for legacy mode and needs to keep the guest ABI, and 421 * because we don't know what's the SMBIOS version advertised by the 422 * BIOS. 423 */ 424 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 425 &qemu_uuid, 16); 426 } 427 } 428 429 uint8_t *smbios_get_table_legacy(size_t *length) 430 { 431 if (!smbios_legacy) { 432 *length = 0; 433 return NULL; 434 } 435 436 if (!smbios_immutable) { 437 smbios_build_type_0_fields(); 438 smbios_build_type_1_fields(); 439 smbios_validate_table(); 440 smbios_immutable = true; 441 } 442 *length = smbios_entries_len; 443 return smbios_entries; 444 } 445 /* end: legacy setup functions for <= 2.0 machines */ 446 447 448 bool smbios_skip_table(uint8_t type, bool required_table) 449 { 450 if (test_bit(type, have_binfile_bitmap)) { 451 return true; /* user provided their own binary blob(s) */ 452 } 453 if (test_bit(type, have_fields_bitmap)) { 454 return false; /* user provided fields via command line */ 455 } 456 if (smbios_have_defaults && required_table) { 457 return false; /* we're building tables, and this one's required */ 458 } 459 return true; 460 } 461 462 static void smbios_build_type_0_table(void) 463 { 464 SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */ 465 466 SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor); 467 SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version); 468 469 t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */ 470 471 SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date); 472 473 t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */ 474 475 t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */ 476 t->bios_characteristics_extension_bytes[0] = 0; 477 t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */ 478 if (type0.uefi) { 479 t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */ 480 } 481 482 if (type0.have_major_minor) { 483 t->system_bios_major_release = type0.major; 484 t->system_bios_minor_release = type0.minor; 485 } else { 486 t->system_bios_major_release = 0; 487 t->system_bios_minor_release = 0; 488 } 489 490 /* hardcoded in SeaBIOS */ 491 t->embedded_controller_major_release = 0xFF; 492 t->embedded_controller_minor_release = 0xFF; 493 494 SMBIOS_BUILD_TABLE_POST; 495 } 496 497 /* Encode UUID from the big endian encoding described on RFC4122 to the wire 498 * format specified by SMBIOS version 2.6. 499 */ 500 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in) 501 { 502 memcpy(uuid, in, 16); 503 if (smbios_uuid_encoded) { 504 uuid->time_low = bswap32(uuid->time_low); 505 uuid->time_mid = bswap16(uuid->time_mid); 506 uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version); 507 } 508 } 509 510 static void smbios_build_type_1_table(void) 511 { 512 SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */ 513 514 SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer); 515 SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product); 516 SMBIOS_TABLE_SET_STR(1, version_str, type1.version); 517 SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial); 518 if (qemu_uuid_set) { 519 smbios_encode_uuid(&t->uuid, &qemu_uuid); 520 } else { 521 memset(&t->uuid, 0, 16); 522 } 523 t->wake_up_type = 0x06; /* power switch */ 524 SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku); 525 SMBIOS_TABLE_SET_STR(1, family_str, type1.family); 526 527 SMBIOS_BUILD_TABLE_POST; 528 } 529 530 static void smbios_build_type_2_table(void) 531 { 532 SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */ 533 534 SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer); 535 SMBIOS_TABLE_SET_STR(2, product_str, type2.product); 536 SMBIOS_TABLE_SET_STR(2, version_str, type2.version); 537 SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial); 538 SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset); 539 t->feature_flags = 0x01; /* Motherboard */ 540 SMBIOS_TABLE_SET_STR(2, location_str, type2.location); 541 t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */ 542 t->board_type = 0x0A; /* Motherboard */ 543 t->contained_element_count = 0; 544 545 SMBIOS_BUILD_TABLE_POST; 546 } 547 548 static void smbios_build_type_3_table(void) 549 { 550 SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */ 551 552 SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer); 553 t->type = 0x01; /* Other */ 554 SMBIOS_TABLE_SET_STR(3, version_str, type3.version); 555 SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial); 556 SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset); 557 t->boot_up_state = 0x03; /* Safe */ 558 t->power_supply_state = 0x03; /* Safe */ 559 t->thermal_state = 0x03; /* Safe */ 560 t->security_status = 0x02; /* Unknown */ 561 t->oem_defined = cpu_to_le32(0); 562 t->height = 0; 563 t->number_of_power_cords = 0; 564 t->contained_element_count = 0; 565 SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku); 566 567 SMBIOS_BUILD_TABLE_POST; 568 } 569 570 static void smbios_build_type_4_table(unsigned instance) 571 { 572 char sock_str[128]; 573 574 SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */ 575 576 snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance); 577 SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str); 578 t->processor_type = 0x03; /* CPU */ 579 t->processor_family = 0x01; /* Other */ 580 SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer); 581 t->processor_id[0] = cpu_to_le32(smbios_cpuid_version); 582 t->processor_id[1] = cpu_to_le32(smbios_cpuid_features); 583 SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version); 584 t->voltage = 0; 585 t->external_clock = cpu_to_le16(0); /* Unknown */ 586 /* SVVP requires max_speed and current_speed to not be unknown. */ 587 t->max_speed = cpu_to_le16(2000); /* 2000 MHz */ 588 t->current_speed = cpu_to_le16(2000); /* 2000 MHz */ 589 t->status = 0x41; /* Socket populated, CPU enabled */ 590 t->processor_upgrade = 0x01; /* Other */ 591 t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 592 t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 593 t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */ 594 SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial); 595 SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset); 596 SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part); 597 t->core_count = t->core_enabled = smp_cores; 598 t->thread_count = smp_threads; 599 t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ 600 t->processor_family2 = cpu_to_le16(0x01); /* Other */ 601 602 SMBIOS_BUILD_TABLE_POST; 603 smbios_type4_count++; 604 } 605 606 static void smbios_build_type_11_table(void) 607 { 608 char count_str[128]; 609 size_t i; 610 611 if (type11.nvalues == 0) { 612 return; 613 } 614 615 SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */ 616 617 snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues); 618 t->count = type11.nvalues; 619 620 for (i = 0; i < type11.nvalues; i++) { 621 SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]); 622 } 623 624 SMBIOS_BUILD_TABLE_POST; 625 } 626 627 #define ONE_KB ((ram_addr_t)1 << 10) 628 #define ONE_MB ((ram_addr_t)1 << 20) 629 #define ONE_GB ((ram_addr_t)1 << 30) 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, ONE_KB) / ONE_KB; 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, ONE_MB) / ONE_MB; 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 / ONE_KB; 710 end_kb = end / ONE_KB; 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(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(smp_cpus, smp_cores * smp_threads); 863 assert(smbios_smp_sockets >= 1); 864 865 for (i = 0; i < smbios_smp_sockets; i++) { 866 smbios_build_type_4_table(i); 867 } 868 869 smbios_build_type_11_table(); 870 871 #define MAX_DIMM_SZ (16ll * ONE_GB) 872 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \ 873 : ((ram_size - 1) % MAX_DIMM_SZ) + 1) 874 875 dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ; 876 877 smbios_build_type_16_table(dimm_cnt); 878 879 for (i = 0; i < dimm_cnt; i++) { 880 smbios_build_type_17_table(i, GET_DIMM_SZ); 881 } 882 883 for (i = 0; i < mem_array_size; i++) { 884 smbios_build_type_19_table(i, mem_array[i].address, 885 mem_array[i].length); 886 } 887 888 smbios_build_type_32_table(); 889 smbios_build_type_38_table(); 890 smbios_build_type_127_table(); 891 892 smbios_validate_table(); 893 smbios_entry_point_setup(); 894 smbios_immutable = true; 895 } 896 897 /* return tables blob and entry point (anchor), and their sizes */ 898 *tables = smbios_tables; 899 *tables_len = smbios_tables_len; 900 *anchor = (uint8_t *)&ep; 901 902 /* calculate length based on anchor string */ 903 if (!strncmp((char *)&ep, "_SM_", 4)) { 904 *anchor_len = sizeof(struct smbios_21_entry_point); 905 } else if (!strncmp((char *)&ep, "_SM3_", 5)) { 906 *anchor_len = sizeof(struct smbios_30_entry_point); 907 } else { 908 abort(); 909 } 910 } 911 912 static void save_opt(const char **dest, QemuOpts *opts, const char *name) 913 { 914 const char *val = qemu_opt_get(opts, name); 915 916 if (val) { 917 *dest = val; 918 } 919 } 920 921 922 struct opt_list { 923 const char *name; 924 size_t *ndest; 925 const char ***dest; 926 }; 927 928 static int save_opt_one(void *opaque, 929 const char *name, const char *value, 930 Error **errp) 931 { 932 struct opt_list *opt = opaque; 933 934 if (!g_str_equal(name, opt->name)) { 935 return 0; 936 } 937 938 *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1); 939 (*opt->dest)[*opt->ndest] = value; 940 (*opt->ndest)++; 941 return 0; 942 } 943 944 static void save_opt_list(size_t *ndest, const char ***dest, 945 QemuOpts *opts, const char *name) 946 { 947 struct opt_list opt = { 948 name, ndest, dest, 949 }; 950 qemu_opt_foreach(opts, save_opt_one, &opt, NULL); 951 } 952 953 void smbios_entry_add(QemuOpts *opts, Error **errp) 954 { 955 const char *val; 956 957 assert(!smbios_immutable); 958 959 val = qemu_opt_get(opts, "file"); 960 if (val) { 961 struct smbios_structure_header *header; 962 int size; 963 struct smbios_table *table; /* legacy mode only */ 964 965 qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal); 966 967 size = get_image_size(val); 968 if (size == -1 || size < sizeof(struct smbios_structure_header)) { 969 error_report("Cannot read SMBIOS file %s", val); 970 exit(1); 971 } 972 973 /* 974 * NOTE: standard double '\0' terminator expected, per smbios spec. 975 * (except in legacy mode, where the second '\0' is implicit and 976 * will be inserted by the BIOS). 977 */ 978 smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size); 979 header = (struct smbios_structure_header *)(smbios_tables + 980 smbios_tables_len); 981 982 if (load_image(val, (uint8_t *)header) != size) { 983 error_report("Failed to load SMBIOS file %s", val); 984 exit(1); 985 } 986 987 if (test_bit(header->type, have_fields_bitmap)) { 988 error_report("can't load type %d struct, fields already specified!", 989 header->type); 990 exit(1); 991 } 992 set_bit(header->type, have_binfile_bitmap); 993 994 if (header->type == 4) { 995 smbios_type4_count++; 996 } 997 998 smbios_tables_len += size; 999 if (size > smbios_table_max) { 1000 smbios_table_max = size; 1001 } 1002 smbios_table_cnt++; 1003 1004 /* add a copy of the newly loaded blob to legacy smbios_entries */ 1005 /* NOTE: This code runs before smbios_set_defaults(), so we don't 1006 * yet know which mode (legacy vs. aggregate-table) will be 1007 * required. We therefore add the binary blob to both legacy 1008 * (smbios_entries) and aggregate (smbios_tables) tables, and 1009 * delete the one we don't need from smbios_set_defaults(), 1010 * once we know which machine version has been requested. 1011 */ 1012 if (!smbios_entries) { 1013 smbios_entries_len = sizeof(uint16_t); 1014 smbios_entries = g_malloc0(smbios_entries_len); 1015 } 1016 smbios_entries = g_realloc(smbios_entries, smbios_entries_len + 1017 size + sizeof(*table)); 1018 table = (struct smbios_table *)(smbios_entries + smbios_entries_len); 1019 table->header.type = SMBIOS_TABLE_ENTRY; 1020 table->header.length = cpu_to_le16(sizeof(*table) + size); 1021 memcpy(table->data, header, size); 1022 smbios_entries_len += sizeof(*table) + size; 1023 (*(uint16_t *)smbios_entries) = 1024 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); 1025 /* end: add a copy of the newly loaded blob to legacy smbios_entries */ 1026 1027 return; 1028 } 1029 1030 val = qemu_opt_get(opts, "type"); 1031 if (val) { 1032 unsigned long type = strtoul(val, NULL, 0); 1033 1034 if (type > SMBIOS_MAX_TYPE) { 1035 error_report("out of range!"); 1036 exit(1); 1037 } 1038 1039 if (test_bit(type, have_binfile_bitmap)) { 1040 error_report("can't add fields, binary file already loaded!"); 1041 exit(1); 1042 } 1043 set_bit(type, have_fields_bitmap); 1044 1045 switch (type) { 1046 case 0: 1047 qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal); 1048 save_opt(&type0.vendor, opts, "vendor"); 1049 save_opt(&type0.version, opts, "version"); 1050 save_opt(&type0.date, opts, "date"); 1051 type0.uefi = qemu_opt_get_bool(opts, "uefi", false); 1052 1053 val = qemu_opt_get(opts, "release"); 1054 if (val) { 1055 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { 1056 error_report("Invalid release"); 1057 exit(1); 1058 } 1059 type0.have_major_minor = true; 1060 } 1061 return; 1062 case 1: 1063 qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal); 1064 save_opt(&type1.manufacturer, opts, "manufacturer"); 1065 save_opt(&type1.product, opts, "product"); 1066 save_opt(&type1.version, opts, "version"); 1067 save_opt(&type1.serial, opts, "serial"); 1068 save_opt(&type1.sku, opts, "sku"); 1069 save_opt(&type1.family, opts, "family"); 1070 1071 val = qemu_opt_get(opts, "uuid"); 1072 if (val) { 1073 if (qemu_uuid_parse(val, &qemu_uuid) != 0) { 1074 error_report("Invalid UUID"); 1075 exit(1); 1076 } 1077 qemu_uuid_set = true; 1078 } 1079 return; 1080 case 2: 1081 qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal); 1082 save_opt(&type2.manufacturer, opts, "manufacturer"); 1083 save_opt(&type2.product, opts, "product"); 1084 save_opt(&type2.version, opts, "version"); 1085 save_opt(&type2.serial, opts, "serial"); 1086 save_opt(&type2.asset, opts, "asset"); 1087 save_opt(&type2.location, opts, "location"); 1088 return; 1089 case 3: 1090 qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal); 1091 save_opt(&type3.manufacturer, opts, "manufacturer"); 1092 save_opt(&type3.version, opts, "version"); 1093 save_opt(&type3.serial, opts, "serial"); 1094 save_opt(&type3.asset, opts, "asset"); 1095 save_opt(&type3.sku, opts, "sku"); 1096 return; 1097 case 4: 1098 qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal); 1099 save_opt(&type4.sock_pfx, opts, "sock_pfx"); 1100 save_opt(&type4.manufacturer, opts, "manufacturer"); 1101 save_opt(&type4.version, opts, "version"); 1102 save_opt(&type4.serial, opts, "serial"); 1103 save_opt(&type4.asset, opts, "asset"); 1104 save_opt(&type4.part, opts, "part"); 1105 return; 1106 case 11: 1107 qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal); 1108 save_opt_list(&type11.nvalues, &type11.values, opts, "value"); 1109 return; 1110 case 17: 1111 qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal); 1112 save_opt(&type17.loc_pfx, opts, "loc_pfx"); 1113 save_opt(&type17.bank, opts, "bank"); 1114 save_opt(&type17.manufacturer, opts, "manufacturer"); 1115 save_opt(&type17.serial, opts, "serial"); 1116 save_opt(&type17.asset, opts, "asset"); 1117 save_opt(&type17.part, opts, "part"); 1118 type17.speed = qemu_opt_get_number(opts, "speed", 0); 1119 return; 1120 default: 1121 error_report("Don't know how to build fields for SMBIOS type %ld", 1122 type); 1123 exit(1); 1124 } 1125 } 1126 1127 error_report("Must specify type= or file="); 1128 exit(1); 1129 } 1130