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