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