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