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