hw/smbios/smbios.c

   1 /*
   2  * SMBIOS Support
   3  *
   4  * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
   5  * Copyright (C) 2013 Red Hat, Inc.
   6  *
   7  * Authors:
   8  *  Alex Williamson <alex.williamson@hp.com>
   9  *  Markus Armbruster <armbru@redhat.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2.  See
  12  * the COPYING file in the top-level directory.
  13  *
  14  * Contributions after 2012-01-13 are licensed under the terms of the
  15  * GNU GPL, version 2 or (at your option) any later version.
  16  */
  17
  18 #include "qemu/osdep.h"
  19 #include "qemu/units.h"
  20 #include "qapi/error.h"
  21 #include "qemu/config-file.h"
  22 #include "qemu/error-report.h"
  23 #include "qemu/option.h"
  24 #include "sysemu/sysemu.h"
  25 #include "qemu/uuid.h"
  26 #include "sysemu/cpus.h"
  27 #include "hw/firmware/smbios.h"
  28 #include "hw/loader.h"
  29 #include "exec/cpu-common.h"
  30 #include "smbios_build.h"
  31
  32 /* legacy structures and constants for <= 2.0 machines */
  33 struct smbios_header {
  34     uint16_t length;
  35     uint8_t type;
  36 } QEMU_PACKED;
  37
  38 struct smbios_field {
  39     struct smbios_header header;
  40     uint8_t type;
  41     uint16_t offset;
  42     uint8_t data[];
  43 } QEMU_PACKED;
  44
  45 struct smbios_table {
  46     struct smbios_header header;
  47     uint8_t data[];
  48 } QEMU_PACKED;
  49
  50 #define SMBIOS_FIELD_ENTRY 0
  51 #define SMBIOS_TABLE_ENTRY 1
  52
  53 static uint8_t *smbios_entries;
  54 static size_t smbios_entries_len;
  55 static bool smbios_legacy = true;
  56 static bool smbios_uuid_encoded = true;
  57 /* end: legacy structures & constants for <= 2.0 machines */
  58
  59
  60 uint8_t *smbios_tables;
  61 size_t smbios_tables_len;
  62 unsigned smbios_table_max;
  63 unsigned smbios_table_cnt;
  64 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
  65
  66 static SmbiosEntryPoint ep;
  67
  68 static int smbios_type4_count = 0;
  69 static bool smbios_immutable;
  70 static bool smbios_have_defaults;
  71 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
  72
  73 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
  74 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
  75
  76 static struct {
  77     const char *vendor, *version, *date;
  78     bool have_major_minor, uefi;
  79     uint8_t major, minor;
  80 } type0;
  81
  82 static struct {
  83     const char *manufacturer, *product, *version, *serial, *sku, *family;
  84     /* uuid is in qemu_uuid */
  85 } type1;
  86
  87 static struct {
  88     const char *manufacturer, *product, *version, *serial, *asset, *location;
  89 } type2;
  90
  91 static struct {
  92     const char *manufacturer, *version, *serial, *asset, *sku;
  93 } type3;
  94
  95 static struct {
  96     const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
  97 } type4;
  98
  99 static struct {
 100     size_t nvalues;
 101     const char **values;
 102 } type11;
 103
 104 static struct {
 105     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
 106     uint16_t speed;
 107 } type17;
 108
 109 static QemuOptsList qemu_smbios_opts = {
 110     .name = "smbios",
 111     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 112     .desc = {
 113         /*
 114          * no elements => accept any params
 115          * validation will happen later
 116          */
 117         { /* end of list */ }
 118     }
 119 };
 120
 121 static const QemuOptDesc qemu_smbios_file_opts[] = {
 122     {
 123         .name = "file",
 124         .type = QEMU_OPT_STRING,
 125         .help = "binary file containing an SMBIOS element",
 126     },
 127     { /* end of list */ }
 128 };
 129
 130 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 131     {
 132         .name = "type",
 133         .type = QEMU_OPT_NUMBER,
 134         .help = "SMBIOS element type",
 135     },{
 136         .name = "vendor",
 137         .type = QEMU_OPT_STRING,
 138         .help = "vendor name",
 139     },{
 140         .name = "version",
 141         .type = QEMU_OPT_STRING,
 142         .help = "version number",
 143     },{
 144         .name = "date",
 145         .type = QEMU_OPT_STRING,
 146         .help = "release date",
 147     },{
 148         .name = "release",
 149         .type = QEMU_OPT_STRING,
 150         .help = "revision number",
 151     },{
 152         .name = "uefi",
 153         .type = QEMU_OPT_BOOL,
 154         .help = "uefi support",
 155     },
 156     { /* end of list */ }
 157 };
 158
 159 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 160     {
 161         .name = "type",
 162         .type = QEMU_OPT_NUMBER,
 163         .help = "SMBIOS element type",
 164     },{
 165         .name = "manufacturer",
 166         .type = QEMU_OPT_STRING,
 167         .help = "manufacturer name",
 168     },{
 169         .name = "product",
 170         .type = QEMU_OPT_STRING,
 171         .help = "product name",
 172     },{
 173         .name = "version",
 174         .type = QEMU_OPT_STRING,
 175         .help = "version number",
 176     },{
 177         .name = "serial",
 178         .type = QEMU_OPT_STRING,
 179         .help = "serial number",
 180     },{
 181         .name = "uuid",
 182         .type = QEMU_OPT_STRING,
 183         .help = "UUID",
 184     },{
 185         .name = "sku",
 186         .type = QEMU_OPT_STRING,
 187         .help = "SKU number",
 188     },{
 189         .name = "family",
 190         .type = QEMU_OPT_STRING,
 191         .help = "family name",
 192     },
 193     { /* end of list */ }
 194 };
 195
 196 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 197     {
 198         .name = "type",
 199         .type = QEMU_OPT_NUMBER,
 200         .help = "SMBIOS element type",
 201     },{
 202         .name = "manufacturer",
 203         .type = QEMU_OPT_STRING,
 204         .help = "manufacturer name",
 205     },{
 206         .name = "product",
 207         .type = QEMU_OPT_STRING,
 208         .help = "product name",
 209     },{
 210         .name = "version",
 211         .type = QEMU_OPT_STRING,
 212         .help = "version number",
 213     },{
 214         .name = "serial",
 215         .type = QEMU_OPT_STRING,
 216         .help = "serial number",
 217     },{
 218         .name = "asset",
 219         .type = QEMU_OPT_STRING,
 220         .help = "asset tag number",
 221     },{
 222         .name = "location",
 223         .type = QEMU_OPT_STRING,
 224         .help = "location in chassis",
 225     },
 226     { /* end of list */ }
 227 };
 228
 229 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 230     {
 231         .name = "type",
 232         .type = QEMU_OPT_NUMBER,
 233         .help = "SMBIOS element type",
 234     },{
 235         .name = "manufacturer",
 236         .type = QEMU_OPT_STRING,
 237         .help = "manufacturer name",
 238     },{
 239         .name = "version",
 240         .type = QEMU_OPT_STRING,
 241         .help = "version number",
 242     },{
 243         .name = "serial",
 244         .type = QEMU_OPT_STRING,
 245         .help = "serial number",
 246     },{
 247         .name = "asset",
 248         .type = QEMU_OPT_STRING,
 249         .help = "asset tag number",
 250     },{
 251         .name = "sku",
 252         .type = QEMU_OPT_STRING,
 253         .help = "SKU number",
 254     },
 255     { /* end of list */ }
 256 };
 257
 258 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 259     {
 260         .name = "type",
 261         .type = QEMU_OPT_NUMBER,
 262         .help = "SMBIOS element type",
 263     },{
 264         .name = "sock_pfx",
 265         .type = QEMU_OPT_STRING,
 266         .help = "socket designation string prefix",
 267     },{
 268         .name = "manufacturer",
 269         .type = QEMU_OPT_STRING,
 270         .help = "manufacturer name",
 271     },{
 272         .name = "version",
 273         .type = QEMU_OPT_STRING,
 274         .help = "version number",
 275     },{
 276         .name = "serial",
 277         .type = QEMU_OPT_STRING,
 278         .help = "serial number",
 279     },{
 280         .name = "asset",
 281         .type = QEMU_OPT_STRING,
 282         .help = "asset tag number",
 283     },{
 284         .name = "part",
 285         .type = QEMU_OPT_STRING,
 286         .help = "part number",
 287     },
 288     { /* end of list */ }
 289 };
 290
 291 static const QemuOptDesc qemu_smbios_type11_opts[] = {
 292     {
 293         .name = "value",
 294         .type = QEMU_OPT_STRING,
 295         .help = "OEM string data",
 296     },
 297 };
 298
 299 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 300     {
 301         .name = "type",
 302         .type = QEMU_OPT_NUMBER,
 303         .help = "SMBIOS element type",
 304     },{
 305         .name = "loc_pfx",
 306         .type = QEMU_OPT_STRING,
 307         .help = "device locator string prefix",
 308     },{
 309         .name = "bank",
 310         .type = QEMU_OPT_STRING,
 311         .help = "bank locator string",
 312     },{
 313         .name = "manufacturer",
 314         .type = QEMU_OPT_STRING,
 315         .help = "manufacturer name",
 316     },{
 317         .name = "serial",
 318         .type = QEMU_OPT_STRING,
 319         .help = "serial number",
 320     },{
 321         .name = "asset",
 322         .type = QEMU_OPT_STRING,
 323         .help = "asset tag number",
 324     },{
 325         .name = "part",
 326         .type = QEMU_OPT_STRING,
 327         .help = "part number",
 328     },{
 329         .name = "speed",
 330         .type = QEMU_OPT_NUMBER,
 331         .help = "maximum capable speed",
 332     },
 333     { /* end of list */ }
 334 };
 335
 336 static void smbios_register_config(void)
 337 {
 338     qemu_add_opts(&qemu_smbios_opts);
 339 }
 340
 341 opts_init(smbios_register_config);
 342
 343 static void smbios_validate_table(void)
 344 {
 345     uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets;
 346
 347     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 348         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 349                      expect_t4_count, smbios_type4_count);
 350         exit(1);
 351     }
 352 }
 353
 354
 355 /* legacy setup functions for <= 2.0 machines */
 356 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 357 {
 358     struct smbios_field *field;
 359
 360     if (!smbios_entries) {
 361         smbios_entries_len = sizeof(uint16_t);
 362         smbios_entries = g_malloc0(smbios_entries_len);
 363     }
 364     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 365                                                   sizeof(*field) + len);
 366     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 367     field->header.type = SMBIOS_FIELD_ENTRY;
 368     field->header.length = cpu_to_le16(sizeof(*field) + len);
 369
 370     field->type = type;
 371     field->offset = cpu_to_le16(offset);
 372     memcpy(field->data, data, len);
 373
 374     smbios_entries_len += sizeof(*field) + len;
 375     (*(uint16_t *)smbios_entries) =
 376             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 377 }
 378
 379 static void smbios_maybe_add_str(int type, int offset, const char *data)
 380 {
 381     if (data) {
 382         smbios_add_field(type, offset, data, strlen(data) + 1);
 383     }
 384 }
 385
 386 static void smbios_build_type_0_fields(void)
 387 {
 388     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 389                          type0.vendor);
 390     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 391                          type0.version);
 392     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 393                                      bios_release_date_str),
 394                          type0.date);
 395     if (type0.have_major_minor) {
 396         smbios_add_field(0, offsetof(struct smbios_type_0,
 397                                      system_bios_major_release),
 398                          &type0.major, 1);
 399         smbios_add_field(0, offsetof(struct smbios_type_0,
 400                                      system_bios_minor_release),
 401                          &type0.minor, 1);
 402     }
 403 }
 404
 405 static void smbios_build_type_1_fields(void)
 406 {
 407     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 408                          type1.manufacturer);
 409     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 410                          type1.product);
 411     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 412                          type1.version);
 413     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 414                          type1.serial);
 415     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 416                          type1.sku);
 417     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 418                          type1.family);
 419     if (qemu_uuid_set) {
 420         /* We don't encode the UUID in the "wire format" here because this
 421          * function is for legacy mode and needs to keep the guest ABI, and
 422          * because we don't know what's the SMBIOS version advertised by the
 423          * BIOS.
 424          */
 425         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 426                          &qemu_uuid, 16);
 427     }
 428 }
 429
 430 uint8_t *smbios_get_table_legacy(size_t *length)
 431 {
 432     if (!smbios_legacy) {
 433         *length = 0;
 434         return NULL;
 435     }
 436
 437     if (!smbios_immutable) {
 438         smbios_build_type_0_fields();
 439         smbios_build_type_1_fields();
 440         smbios_validate_table();
 441         smbios_immutable = true;
 442     }
 443     *length = smbios_entries_len;
 444     return smbios_entries;
 445 }
 446 /* end: legacy setup functions for <= 2.0 machines */
 447
 448
 449 bool smbios_skip_table(uint8_t type, bool required_table)
 450 {
 451     if (test_bit(type, have_binfile_bitmap)) {
 452         return true; /* user provided their own binary blob(s) */
 453     }
 454     if (test_bit(type, have_fields_bitmap)) {
 455         return false; /* user provided fields via command line */
 456     }
 457     if (smbios_have_defaults && required_table) {
 458         return false; /* we're building tables, and this one's required */
 459     }
 460     return true;
 461 }
 462
 463 static void smbios_build_type_0_table(void)
 464 {
 465     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 466
 467     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 468     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 469
 470     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 471
 472     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 473
 474     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 475
 476     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 477     t->bios_characteristics_extension_bytes[0] = 0;
 478     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 479     if (type0.uefi) {
 480         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 481     }
 482
 483     if (type0.have_major_minor) {
 484         t->system_bios_major_release = type0.major;
 485         t->system_bios_minor_release = type0.minor;
 486     } else {
 487         t->system_bios_major_release = 0;
 488         t->system_bios_minor_release = 0;
 489     }
 490
 491     /* hardcoded in SeaBIOS */
 492     t->embedded_controller_major_release = 0xFF;
 493     t->embedded_controller_minor_release = 0xFF;
 494
 495     SMBIOS_BUILD_TABLE_POST;
 496 }
 497
 498 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 499  * format specified by SMBIOS version 2.6.
 500  */
 501 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 502 {
 503     memcpy(uuid, in, 16);
 504     if (smbios_uuid_encoded) {
 505         uuid->time_low = bswap32(uuid->time_low);
 506         uuid->time_mid = bswap16(uuid->time_mid);
 507         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 508     }
 509 }
 510
 511 static void smbios_build_type_1_table(void)
 512 {
 513     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 514
 515     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 516     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 517     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 518     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 519     if (qemu_uuid_set) {
 520         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 521     } else {
 522         memset(&t->uuid, 0, 16);
 523     }
 524     t->wake_up_type = 0x06; /* power switch */
 525     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 526     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 527
 528     SMBIOS_BUILD_TABLE_POST;
 529 }
 530
 531 static void smbios_build_type_2_table(void)
 532 {
 533     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 534
 535     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 536     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 537     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 538     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 539     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 540     t->feature_flags = 0x01; /* Motherboard */
 541     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 542     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 543     t->board_type = 0x0A; /* Motherboard */
 544     t->contained_element_count = 0;
 545
 546     SMBIOS_BUILD_TABLE_POST;
 547 }
 548
 549 static void smbios_build_type_3_table(void)
 550 {
 551     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 552
 553     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 554     t->type = 0x01; /* Other */
 555     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 556     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 557     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 558     t->boot_up_state = 0x03; /* Safe */
 559     t->power_supply_state = 0x03; /* Safe */
 560     t->thermal_state = 0x03; /* Safe */
 561     t->security_status = 0x02; /* Unknown */
 562     t->oem_defined = cpu_to_le32(0);
 563     t->height = 0;
 564     t->number_of_power_cords = 0;
 565     t->contained_element_count = 0;
 566     t->contained_element_record_length = 0;
 567     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 568
 569     SMBIOS_BUILD_TABLE_POST;
 570 }
 571
 572 static void smbios_build_type_4_table(unsigned instance)
 573 {
 574     char sock_str[128];
 575
 576     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 577
 578     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 579     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 580     t->processor_type = 0x03; /* CPU */
 581     t->processor_family = 0x01; /* Other */
 582     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 583     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 584     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 585     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 586     t->voltage = 0;
 587     t->external_clock = cpu_to_le16(0); /* Unknown */
 588     /* SVVP requires max_speed and current_speed to not be unknown. */
 589     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 590     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 591     t->status = 0x41; /* Socket populated, CPU enabled */
 592     t->processor_upgrade = 0x01; /* Other */
 593     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 594     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 595     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 596     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 597     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 598     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 599     t->core_count = t->core_enabled = smp_cores;
 600     t->thread_count = smp_threads;
 601     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 602     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 603
 604     SMBIOS_BUILD_TABLE_POST;
 605     smbios_type4_count++;
 606 }
 607
 608 static void smbios_build_type_11_table(void)
 609 {
 610     char count_str[128];
 611     size_t i;
 612
 613     if (type11.nvalues == 0) {
 614         return;
 615     }
 616
 617     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 618
 619     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 620     t->count = type11.nvalues;
 621
 622     for (i = 0; i < type11.nvalues; i++) {
 623         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 624     }
 625
 626     SMBIOS_BUILD_TABLE_POST;
 627 }
 628
 629 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 630
 631 static void smbios_build_type_16_table(unsigned dimm_cnt)
 632 {
 633     uint64_t size_kb;
 634
 635     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 636
 637     t->location = 0x01; /* Other */
 638     t->use = 0x03; /* System memory */
 639     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 640     size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
 641     if (size_kb < MAX_T16_STD_SZ) {
 642         t->maximum_capacity = cpu_to_le32(size_kb);
 643         t->extended_maximum_capacity = cpu_to_le64(0);
 644     } else {
 645         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 646         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 647     }
 648     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 649     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 650
 651     SMBIOS_BUILD_TABLE_POST;
 652 }
 653
 654 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 655 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 656
 657 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 658 {
 659     char loc_str[128];
 660     uint64_t size_mb;
 661
 662     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 663
 664     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 665     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 666     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 667     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 668     size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
 669     if (size_mb < MAX_T17_STD_SZ) {
 670         t->size = cpu_to_le16(size_mb);
 671         t->extended_size = cpu_to_le32(0);
 672     } else {
 673         assert(size_mb < MAX_T17_EXT_SZ);
 674         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 675         t->extended_size = cpu_to_le32(size_mb);
 676     }
 677     t->form_factor = 0x09; /* DIMM */
 678     t->device_set = 0; /* Not in a set */
 679     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 680     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 681     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 682     t->memory_type = 0x07; /* RAM */
 683     t->type_detail = cpu_to_le16(0x02); /* Other */
 684     t->speed = cpu_to_le16(type17.speed);
 685     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 686     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 687     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 688     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 689     t->attributes = 0; /* Unknown */
 690     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 691     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 692     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 693     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 694
 695     SMBIOS_BUILD_TABLE_POST;
 696 }
 697
 698 static void smbios_build_type_19_table(unsigned instance,
 699                                        uint64_t start, uint64_t size)
 700 {
 701     uint64_t end, start_kb, end_kb;
 702
 703     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 704
 705     end = start + size - 1;
 706     assert(end > start);
 707     start_kb = start / KiB;
 708     end_kb = end / KiB;
 709     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 710         t->starting_address = cpu_to_le32(start_kb);
 711         t->ending_address = cpu_to_le32(end_kb);
 712         t->extended_starting_address =
 713             t->extended_ending_address = cpu_to_le64(0);
 714     } else {
 715         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 716         t->extended_starting_address = cpu_to_le64(start);
 717         t->extended_ending_address = cpu_to_le64(end);
 718     }
 719     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 720     t->partition_width = 1; /* One device per row */
 721
 722     SMBIOS_BUILD_TABLE_POST;
 723 }
 724
 725 static void smbios_build_type_32_table(void)
 726 {
 727     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 728
 729     memset(t->reserved, 0, 6);
 730     t->boot_status = 0; /* No errors detected */
 731
 732     SMBIOS_BUILD_TABLE_POST;
 733 }
 734
 735 static void smbios_build_type_127_table(void)
 736 {
 737     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 738     SMBIOS_BUILD_TABLE_POST;
 739 }
 740
 741 void smbios_set_cpuid(uint32_t version, uint32_t features)
 742 {
 743     smbios_cpuid_version = version;
 744     smbios_cpuid_features = features;
 745 }
 746
 747 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 748     if (!field) {                                                         \
 749         field = value;                                                    \
 750     }
 751
 752 void smbios_set_defaults(const char *manufacturer, const char *product,
 753                          const char *version, bool legacy_mode,
 754                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 755 {
 756     smbios_have_defaults = true;
 757     smbios_legacy = legacy_mode;
 758     smbios_uuid_encoded = uuid_encoded;
 759     smbios_ep_type = ep_type;
 760
 761     /* drop unwanted version of command-line file blob(s) */
 762     if (smbios_legacy) {
 763         g_free(smbios_tables);
 764         /* in legacy mode, also complain if fields were given for types > 1 */
 765         if (find_next_bit(have_fields_bitmap,
 766                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 767             error_report("can't process fields for smbios "
 768                          "types > 1 on machine versions < 2.1!");
 769             exit(1);
 770         }
 771     } else {
 772         g_free(smbios_entries);
 773     }
 774
 775     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 776     SMBIOS_SET_DEFAULT(type1.product, product);
 777     SMBIOS_SET_DEFAULT(type1.version, version);
 778     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 779     SMBIOS_SET_DEFAULT(type2.product, product);
 780     SMBIOS_SET_DEFAULT(type2.version, version);
 781     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 782     SMBIOS_SET_DEFAULT(type3.version, version);
 783     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 784     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 785     SMBIOS_SET_DEFAULT(type4.version, version);
 786     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 787     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 788 }
 789
 790 static void smbios_entry_point_setup(void)
 791 {
 792     switch (smbios_ep_type) {
 793     case SMBIOS_ENTRY_POINT_21:
 794         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 795         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 796         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 797         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 798         memset(ep.ep21.formatted_area, 0, 5);
 799
 800         /* compliant with smbios spec v2.8 */
 801         ep.ep21.smbios_major_version = 2;
 802         ep.ep21.smbios_minor_version = 8;
 803         ep.ep21.smbios_bcd_revision = 0x28;
 804
 805         /* set during table construction, but BIOS may override: */
 806         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 807         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 808         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 809
 810         /* BIOS must recalculate */
 811         ep.ep21.checksum = 0;
 812         ep.ep21.intermediate_checksum = 0;
 813         ep.ep21.structure_table_address = cpu_to_le32(0);
 814
 815         break;
 816     case SMBIOS_ENTRY_POINT_30:
 817         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 818         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 819         ep.ep30.entry_point_revision = 1;
 820         ep.ep30.reserved = 0;
 821
 822         /* compliant with smbios spec 3.0 */
 823         ep.ep30.smbios_major_version = 3;
 824         ep.ep30.smbios_minor_version = 0;
 825         ep.ep30.smbios_doc_rev = 0;
 826
 827         /* set during table construct, but BIOS might override */
 828         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 829
 830         /* BIOS must recalculate */
 831         ep.ep30.checksum = 0;
 832         ep.ep30.structure_table_address = cpu_to_le64(0);
 833
 834         break;
 835     default:
 836         abort();
 837         break;
 838     }
 839 }
 840
 841 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
 842                        const unsigned int mem_array_size,
 843                        uint8_t **tables, size_t *tables_len,
 844                        uint8_t **anchor, size_t *anchor_len)
 845 {
 846     unsigned i, dimm_cnt;
 847
 848     if (smbios_legacy) {
 849         *tables = *anchor = NULL;
 850         *tables_len = *anchor_len = 0;
 851         return;
 852     }
 853
 854     if (!smbios_immutable) {
 855         smbios_build_type_0_table();
 856         smbios_build_type_1_table();
 857         smbios_build_type_2_table();
 858         smbios_build_type_3_table();
 859
 860         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 861         assert(smbios_smp_sockets >= 1);
 862
 863         for (i = 0; i < smbios_smp_sockets; i++) {
 864             smbios_build_type_4_table(i);
 865         }
 866
 867         smbios_build_type_11_table();
 868
 869 #define MAX_DIMM_SZ (16 * GiB)
 870 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 871                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 872
 873         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 874
 875         smbios_build_type_16_table(dimm_cnt);
 876
 877         for (i = 0; i < dimm_cnt; i++) {
 878             smbios_build_type_17_table(i, GET_DIMM_SZ);
 879         }
 880
 881         for (i = 0; i < mem_array_size; i++) {
 882             smbios_build_type_19_table(i, mem_array[i].address,
 883                                        mem_array[i].length);
 884         }
 885
 886         smbios_build_type_32_table();
 887         smbios_build_type_38_table();
 888         smbios_build_type_127_table();
 889
 890         smbios_validate_table();
 891         smbios_entry_point_setup();
 892         smbios_immutable = true;
 893     }
 894
 895     /* return tables blob and entry point (anchor), and their sizes */
 896     *tables = smbios_tables;
 897     *tables_len = smbios_tables_len;
 898     *anchor = (uint8_t *)&ep;
 899
 900     /* calculate length based on anchor string */
 901     if (!strncmp((char *)&ep, "_SM_", 4)) {
 902         *anchor_len = sizeof(struct smbios_21_entry_point);
 903     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 904         *anchor_len = sizeof(struct smbios_30_entry_point);
 905     } else {
 906         abort();
 907     }
 908 }
 909
 910 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 911 {
 912     const char *val = qemu_opt_get(opts, name);
 913
 914     if (val) {
 915         *dest = val;
 916     }
 917 }
 918
 919
 920 struct opt_list {
 921     const char *name;
 922     size_t *ndest;
 923     const char ***dest;
 924 };
 925
 926 static int save_opt_one(void *opaque,
 927                         const char *name, const char *value,
 928                         Error **errp)
 929 {
 930     struct opt_list *opt = opaque;
 931
 932     if (!g_str_equal(name, opt->name)) {
 933         return 0;
 934     }
 935
 936     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 937     (*opt->dest)[*opt->ndest] = value;
 938     (*opt->ndest)++;
 939     return 0;
 940 }
 941
 942 static void save_opt_list(size_t *ndest, const char ***dest,
 943                           QemuOpts *opts, const char *name)
 944 {
 945     struct opt_list opt = {
 946         name, ndest, dest,
 947     };
 948     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 949 }
 950
 951 void smbios_entry_add(QemuOpts *opts, Error **errp)
 952 {
 953     Error *err = NULL;
 954     const char *val;
 955
 956     assert(!smbios_immutable);
 957
 958     val = qemu_opt_get(opts, "file");
 959     if (val) {
 960         struct smbios_structure_header *header;
 961         int size;
 962         struct smbios_table *table; /* legacy mode only */
 963
 964         qemu_opts_validate(opts, qemu_smbios_file_opts, &err);
 965         if (err) {
 966             error_propagate(errp, err);
 967             return;
 968         }
 969
 970         size = get_image_size(val);
 971         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 972             error_setg(errp, "Cannot read SMBIOS file %s", val);
 973             return;
 974         }
 975
 976         /*
 977          * NOTE: standard double '\0' terminator expected, per smbios spec.
 978          * (except in legacy mode, where the second '\0' is implicit and
 979          *  will be inserted by the BIOS).
 980          */
 981         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 982         header = (struct smbios_structure_header *)(smbios_tables +
 983                                                     smbios_tables_len);
 984
 985         if (load_image_size(val, (uint8_t *)header, size) != size) {
 986             error_setg(errp, "Failed to load SMBIOS file %s", val);
 987             return;
 988         }
 989
 990         if (test_bit(header->type, have_fields_bitmap)) {
 991             error_setg(errp,
 992                        "can't load type %d struct, fields already specified!",
 993                        header->type);
 994             return;
 995         }
 996         set_bit(header->type, have_binfile_bitmap);
 997
 998         if (header->type == 4) {
 999             smbios_type4_count++;
1000         }
1001
1002         smbios_tables_len += size;
1003         if (size > smbios_table_max) {
1004             smbios_table_max = size;
1005         }
1006         smbios_table_cnt++;
1007
1008         /* add a copy of the newly loaded blob to legacy smbios_entries */
1009         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1010          *       yet know which mode (legacy vs. aggregate-table) will be
1011          *       required. We therefore add the binary blob to both legacy
1012          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1013          *       delete the one we don't need from smbios_set_defaults(),
1014          *       once we know which machine version has been requested.
1015          */
1016         if (!smbios_entries) {
1017             smbios_entries_len = sizeof(uint16_t);
1018             smbios_entries = g_malloc0(smbios_entries_len);
1019         }
1020         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1021                                                    size + sizeof(*table));
1022         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1023         table->header.type = SMBIOS_TABLE_ENTRY;
1024         table->header.length = cpu_to_le16(sizeof(*table) + size);
1025         memcpy(table->data, header, size);
1026         smbios_entries_len += sizeof(*table) + size;
1027         (*(uint16_t *)smbios_entries) =
1028                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1029         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1030
1031         return;
1032     }
1033
1034     val = qemu_opt_get(opts, "type");
1035     if (val) {
1036         unsigned long type = strtoul(val, NULL, 0);
1037
1038         if (type > SMBIOS_MAX_TYPE) {
1039             error_setg(errp, "out of range!");
1040             return;
1041         }
1042
1043         if (test_bit(type, have_binfile_bitmap)) {
1044             error_setg(errp, "can't add fields, binary file already loaded!");
1045             return;
1046         }
1047         set_bit(type, have_fields_bitmap);
1048
1049         switch (type) {
1050         case 0:
1051             qemu_opts_validate(opts, qemu_smbios_type0_opts, &err);
1052             if (err) {
1053                 error_propagate(errp, err);
1054                 return;
1055             }
1056             save_opt(&type0.vendor, opts, "vendor");
1057             save_opt(&type0.version, opts, "version");
1058             save_opt(&type0.date, opts, "date");
1059             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1060
1061             val = qemu_opt_get(opts, "release");
1062             if (val) {
1063                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1064                     error_setg(errp, "Invalid release");
1065                     return;
1066                 }
1067                 type0.have_major_minor = true;
1068             }
1069             return;
1070         case 1:
1071             qemu_opts_validate(opts, qemu_smbios_type1_opts, &err);
1072             if (err) {
1073                 error_propagate(errp, err);
1074                 return;
1075             }
1076             save_opt(&type1.manufacturer, opts, "manufacturer");
1077             save_opt(&type1.product, opts, "product");
1078             save_opt(&type1.version, opts, "version");
1079             save_opt(&type1.serial, opts, "serial");
1080             save_opt(&type1.sku, opts, "sku");
1081             save_opt(&type1.family, opts, "family");
1082
1083             val = qemu_opt_get(opts, "uuid");
1084             if (val) {
1085                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1086                     error_setg(errp, "Invalid UUID");
1087                     return;
1088                 }
1089                 qemu_uuid_set = true;
1090             }
1091             return;
1092         case 2:
1093             qemu_opts_validate(opts, qemu_smbios_type2_opts, &err);
1094             if (err) {
1095                 error_propagate(errp, err);
1096                 return;
1097             }
1098             save_opt(&type2.manufacturer, opts, "manufacturer");
1099             save_opt(&type2.product, opts, "product");
1100             save_opt(&type2.version, opts, "version");
1101             save_opt(&type2.serial, opts, "serial");
1102             save_opt(&type2.asset, opts, "asset");
1103             save_opt(&type2.location, opts, "location");
1104             return;
1105         case 3:
1106             qemu_opts_validate(opts, qemu_smbios_type3_opts, &err);
1107             if (err) {
1108                 error_propagate(errp, err);
1109                 return;
1110             }
1111             save_opt(&type3.manufacturer, opts, "manufacturer");
1112             save_opt(&type3.version, opts, "version");
1113             save_opt(&type3.serial, opts, "serial");
1114             save_opt(&type3.asset, opts, "asset");
1115             save_opt(&type3.sku, opts, "sku");
1116             return;
1117         case 4:
1118             qemu_opts_validate(opts, qemu_smbios_type4_opts, &err);
1119             if (err) {
1120                 error_propagate(errp, err);
1121                 return;
1122             }
1123             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1124             save_opt(&type4.manufacturer, opts, "manufacturer");
1125             save_opt(&type4.version, opts, "version");
1126             save_opt(&type4.serial, opts, "serial");
1127             save_opt(&type4.asset, opts, "asset");
1128             save_opt(&type4.part, opts, "part");
1129             return;
1130         case 11:
1131             qemu_opts_validate(opts, qemu_smbios_type11_opts, &err);
1132             if (err) {
1133                 error_propagate(errp, err);
1134                 return;
1135             }
1136             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1137             return;
1138         case 17:
1139             qemu_opts_validate(opts, qemu_smbios_type17_opts, &err);
1140             if (err) {
1141                 error_propagate(errp, err);
1142                 return;
1143             }
1144             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1145             save_opt(&type17.bank, opts, "bank");
1146             save_opt(&type17.manufacturer, opts, "manufacturer");
1147             save_opt(&type17.serial, opts, "serial");
1148             save_opt(&type17.asset, opts, "asset");
1149             save_opt(&type17.part, opts, "part");
1150             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1151             return;
1152         default:
1153             error_setg(errp,
1154                        "Don't know how to build fields for SMBIOS type %ld",
1155                        type);
1156             return;
1157         }
1158     }
1159
1160     error_setg(errp, "Must specify type= or file=");
1161 }