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/module.h"
  24 #include "qemu/option.h"
  25 #include "sysemu/sysemu.h"
  26 #include "qemu/uuid.h"
  27 #include "hw/firmware/smbios.h"
  28 #include "hw/loader.h"
  29 #include "hw/boards.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(MachineState *ms)
 344 {
 345     uint32_t expect_t4_count = smbios_legacy ?
 346                                         ms->smp.cpus : smbios_smp_sockets;
 347
 348     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 349         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 350                      expect_t4_count, smbios_type4_count);
 351         exit(1);
 352     }
 353 }
 354
 355
 356 /* legacy setup functions for <= 2.0 machines */
 357 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 358 {
 359     struct smbios_field *field;
 360
 361     if (!smbios_entries) {
 362         smbios_entries_len = sizeof(uint16_t);
 363         smbios_entries = g_malloc0(smbios_entries_len);
 364     }
 365     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 366                                                   sizeof(*field) + len);
 367     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 368     field->header.type = SMBIOS_FIELD_ENTRY;
 369     field->header.length = cpu_to_le16(sizeof(*field) + len);
 370
 371     field->type = type;
 372     field->offset = cpu_to_le16(offset);
 373     memcpy(field->data, data, len);
 374
 375     smbios_entries_len += sizeof(*field) + len;
 376     (*(uint16_t *)smbios_entries) =
 377             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 378 }
 379
 380 static void smbios_maybe_add_str(int type, int offset, const char *data)
 381 {
 382     if (data) {
 383         smbios_add_field(type, offset, data, strlen(data) + 1);
 384     }
 385 }
 386
 387 static void smbios_build_type_0_fields(void)
 388 {
 389     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 390                          type0.vendor);
 391     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 392                          type0.version);
 393     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 394                                      bios_release_date_str),
 395                          type0.date);
 396     if (type0.have_major_minor) {
 397         smbios_add_field(0, offsetof(struct smbios_type_0,
 398                                      system_bios_major_release),
 399                          &type0.major, 1);
 400         smbios_add_field(0, offsetof(struct smbios_type_0,
 401                                      system_bios_minor_release),
 402                          &type0.minor, 1);
 403     }
 404 }
 405
 406 static void smbios_build_type_1_fields(void)
 407 {
 408     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 409                          type1.manufacturer);
 410     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 411                          type1.product);
 412     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 413                          type1.version);
 414     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 415                          type1.serial);
 416     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 417                          type1.sku);
 418     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 419                          type1.family);
 420     if (qemu_uuid_set) {
 421         /* We don't encode the UUID in the "wire format" here because this
 422          * function is for legacy mode and needs to keep the guest ABI, and
 423          * because we don't know what's the SMBIOS version advertised by the
 424          * BIOS.
 425          */
 426         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 427                          &qemu_uuid, 16);
 428     }
 429 }
 430
 431 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length)
 432 {
 433     if (!smbios_legacy) {
 434         *length = 0;
 435         return NULL;
 436     }
 437
 438     if (!smbios_immutable) {
 439         smbios_build_type_0_fields();
 440         smbios_build_type_1_fields();
 441         smbios_validate_table(ms);
 442         smbios_immutable = true;
 443     }
 444     *length = smbios_entries_len;
 445     return smbios_entries;
 446 }
 447 /* end: legacy setup functions for <= 2.0 machines */
 448
 449
 450 bool smbios_skip_table(uint8_t type, bool required_table)
 451 {
 452     if (test_bit(type, have_binfile_bitmap)) {
 453         return true; /* user provided their own binary blob(s) */
 454     }
 455     if (test_bit(type, have_fields_bitmap)) {
 456         return false; /* user provided fields via command line */
 457     }
 458     if (smbios_have_defaults && required_table) {
 459         return false; /* we're building tables, and this one's required */
 460     }
 461     return true;
 462 }
 463
 464 static void smbios_build_type_0_table(void)
 465 {
 466     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 467
 468     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 469     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 470
 471     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 472
 473     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 474
 475     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 476
 477     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 478     t->bios_characteristics_extension_bytes[0] = 0;
 479     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 480     if (type0.uefi) {
 481         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 482     }
 483
 484     if (type0.have_major_minor) {
 485         t->system_bios_major_release = type0.major;
 486         t->system_bios_minor_release = type0.minor;
 487     } else {
 488         t->system_bios_major_release = 0;
 489         t->system_bios_minor_release = 0;
 490     }
 491
 492     /* hardcoded in SeaBIOS */
 493     t->embedded_controller_major_release = 0xFF;
 494     t->embedded_controller_minor_release = 0xFF;
 495
 496     SMBIOS_BUILD_TABLE_POST;
 497 }
 498
 499 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 500  * format specified by SMBIOS version 2.6.
 501  */
 502 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 503 {
 504     memcpy(uuid, in, 16);
 505     if (smbios_uuid_encoded) {
 506         uuid->time_low = bswap32(uuid->time_low);
 507         uuid->time_mid = bswap16(uuid->time_mid);
 508         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 509     }
 510 }
 511
 512 static void smbios_build_type_1_table(void)
 513 {
 514     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 515
 516     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 517     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 518     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 519     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 520     if (qemu_uuid_set) {
 521         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 522     } else {
 523         memset(&t->uuid, 0, 16);
 524     }
 525     t->wake_up_type = 0x06; /* power switch */
 526     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 527     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 528
 529     SMBIOS_BUILD_TABLE_POST;
 530 }
 531
 532 static void smbios_build_type_2_table(void)
 533 {
 534     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 535
 536     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 537     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 538     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 539     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 540     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 541     t->feature_flags = 0x01; /* Motherboard */
 542     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 543     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 544     t->board_type = 0x0A; /* Motherboard */
 545     t->contained_element_count = 0;
 546
 547     SMBIOS_BUILD_TABLE_POST;
 548 }
 549
 550 static void smbios_build_type_3_table(void)
 551 {
 552     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 553
 554     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 555     t->type = 0x01; /* Other */
 556     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 557     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 558     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 559     t->boot_up_state = 0x03; /* Safe */
 560     t->power_supply_state = 0x03; /* Safe */
 561     t->thermal_state = 0x03; /* Safe */
 562     t->security_status = 0x02; /* Unknown */
 563     t->oem_defined = cpu_to_le32(0);
 564     t->height = 0;
 565     t->number_of_power_cords = 0;
 566     t->contained_element_count = 0;
 567     t->contained_element_record_length = 0;
 568     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 569
 570     SMBIOS_BUILD_TABLE_POST;
 571 }
 572
 573 static void smbios_build_type_4_table(MachineState *ms, unsigned instance)
 574 {
 575     char sock_str[128];
 576
 577     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 578
 579     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 580     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 581     t->processor_type = 0x03; /* CPU */
 582     t->processor_family = 0x01; /* Other */
 583     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 584     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 585     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 586     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 587     t->voltage = 0;
 588     t->external_clock = cpu_to_le16(0); /* Unknown */
 589     /* SVVP requires max_speed and current_speed to not be unknown. */
 590     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 591     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 592     t->status = 0x41; /* Socket populated, CPU enabled */
 593     t->processor_upgrade = 0x01; /* Other */
 594     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 595     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 596     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 597     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 598     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 599     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 600     t->core_count = t->core_enabled = ms->smp.cores;
 601     t->thread_count = ms->smp.threads;
 602     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 603     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 604
 605     SMBIOS_BUILD_TABLE_POST;
 606     smbios_type4_count++;
 607 }
 608
 609 static void smbios_build_type_11_table(void)
 610 {
 611     char count_str[128];
 612     size_t i;
 613
 614     if (type11.nvalues == 0) {
 615         return;
 616     }
 617
 618     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 619
 620     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 621     t->count = type11.nvalues;
 622
 623     for (i = 0; i < type11.nvalues; i++) {
 624         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 625     }
 626
 627     SMBIOS_BUILD_TABLE_POST;
 628 }
 629
 630 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 631
 632 static void smbios_build_type_16_table(unsigned dimm_cnt)
 633 {
 634     uint64_t size_kb;
 635
 636     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 637
 638     t->location = 0x01; /* Other */
 639     t->use = 0x03; /* System memory */
 640     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 641     size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
 642     if (size_kb < MAX_T16_STD_SZ) {
 643         t->maximum_capacity = cpu_to_le32(size_kb);
 644         t->extended_maximum_capacity = cpu_to_le64(0);
 645     } else {
 646         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 647         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 648     }
 649     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 650     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 651
 652     SMBIOS_BUILD_TABLE_POST;
 653 }
 654
 655 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 656 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 657
 658 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 659 {
 660     char loc_str[128];
 661     uint64_t size_mb;
 662
 663     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 664
 665     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 666     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 667     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 668     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 669     size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
 670     if (size_mb < MAX_T17_STD_SZ) {
 671         t->size = cpu_to_le16(size_mb);
 672         t->extended_size = cpu_to_le32(0);
 673     } else {
 674         assert(size_mb < MAX_T17_EXT_SZ);
 675         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 676         t->extended_size = cpu_to_le32(size_mb);
 677     }
 678     t->form_factor = 0x09; /* DIMM */
 679     t->device_set = 0; /* Not in a set */
 680     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 681     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 682     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 683     t->memory_type = 0x07; /* RAM */
 684     t->type_detail = cpu_to_le16(0x02); /* Other */
 685     t->speed = cpu_to_le16(type17.speed);
 686     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 687     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 688     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 689     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 690     t->attributes = 0; /* Unknown */
 691     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 692     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 693     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 694     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 695
 696     SMBIOS_BUILD_TABLE_POST;
 697 }
 698
 699 static void smbios_build_type_19_table(unsigned instance,
 700                                        uint64_t start, uint64_t size)
 701 {
 702     uint64_t end, start_kb, end_kb;
 703
 704     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 705
 706     end = start + size - 1;
 707     assert(end > start);
 708     start_kb = start / KiB;
 709     end_kb = end / KiB;
 710     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 711         t->starting_address = cpu_to_le32(start_kb);
 712         t->ending_address = cpu_to_le32(end_kb);
 713         t->extended_starting_address =
 714             t->extended_ending_address = cpu_to_le64(0);
 715     } else {
 716         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 717         t->extended_starting_address = cpu_to_le64(start);
 718         t->extended_ending_address = cpu_to_le64(end);
 719     }
 720     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 721     t->partition_width = 1; /* One device per row */
 722
 723     SMBIOS_BUILD_TABLE_POST;
 724 }
 725
 726 static void smbios_build_type_32_table(void)
 727 {
 728     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 729
 730     memset(t->reserved, 0, 6);
 731     t->boot_status = 0; /* No errors detected */
 732
 733     SMBIOS_BUILD_TABLE_POST;
 734 }
 735
 736 static void smbios_build_type_127_table(void)
 737 {
 738     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 739     SMBIOS_BUILD_TABLE_POST;
 740 }
 741
 742 void smbios_set_cpuid(uint32_t version, uint32_t features)
 743 {
 744     smbios_cpuid_version = version;
 745     smbios_cpuid_features = features;
 746 }
 747
 748 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 749     if (!field) {                                                         \
 750         field = value;                                                    \
 751     }
 752
 753 void smbios_set_defaults(const char *manufacturer, const char *product,
 754                          const char *version, bool legacy_mode,
 755                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 756 {
 757     smbios_have_defaults = true;
 758     smbios_legacy = legacy_mode;
 759     smbios_uuid_encoded = uuid_encoded;
 760     smbios_ep_type = ep_type;
 761
 762     /* drop unwanted version of command-line file blob(s) */
 763     if (smbios_legacy) {
 764         g_free(smbios_tables);
 765         /* in legacy mode, also complain if fields were given for types > 1 */
 766         if (find_next_bit(have_fields_bitmap,
 767                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 768             error_report("can't process fields for smbios "
 769                          "types > 1 on machine versions < 2.1!");
 770             exit(1);
 771         }
 772     } else {
 773         g_free(smbios_entries);
 774     }
 775
 776     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 777     SMBIOS_SET_DEFAULT(type1.product, product);
 778     SMBIOS_SET_DEFAULT(type1.version, version);
 779     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 780     SMBIOS_SET_DEFAULT(type2.product, product);
 781     SMBIOS_SET_DEFAULT(type2.version, version);
 782     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 783     SMBIOS_SET_DEFAULT(type3.version, version);
 784     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 785     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 786     SMBIOS_SET_DEFAULT(type4.version, version);
 787     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 788     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 789 }
 790
 791 static void smbios_entry_point_setup(void)
 792 {
 793     switch (smbios_ep_type) {
 794     case SMBIOS_ENTRY_POINT_21:
 795         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 796         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 797         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 798         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 799         memset(ep.ep21.formatted_area, 0, 5);
 800
 801         /* compliant with smbios spec v2.8 */
 802         ep.ep21.smbios_major_version = 2;
 803         ep.ep21.smbios_minor_version = 8;
 804         ep.ep21.smbios_bcd_revision = 0x28;
 805
 806         /* set during table construction, but BIOS may override: */
 807         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 808         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 809         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 810
 811         /* BIOS must recalculate */
 812         ep.ep21.checksum = 0;
 813         ep.ep21.intermediate_checksum = 0;
 814         ep.ep21.structure_table_address = cpu_to_le32(0);
 815
 816         break;
 817     case SMBIOS_ENTRY_POINT_30:
 818         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 819         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 820         ep.ep30.entry_point_revision = 1;
 821         ep.ep30.reserved = 0;
 822
 823         /* compliant with smbios spec 3.0 */
 824         ep.ep30.smbios_major_version = 3;
 825         ep.ep30.smbios_minor_version = 0;
 826         ep.ep30.smbios_doc_rev = 0;
 827
 828         /* set during table construct, but BIOS might override */
 829         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 830
 831         /* BIOS must recalculate */
 832         ep.ep30.checksum = 0;
 833         ep.ep30.structure_table_address = cpu_to_le64(0);
 834
 835         break;
 836     default:
 837         abort();
 838         break;
 839     }
 840 }
 841
 842 void smbios_get_tables(MachineState *ms,
 843                        const struct smbios_phys_mem_area *mem_array,
 844                        const unsigned int mem_array_size,
 845                        uint8_t **tables, size_t *tables_len,
 846                        uint8_t **anchor, size_t *anchor_len)
 847 {
 848     unsigned i, dimm_cnt;
 849
 850     if (smbios_legacy) {
 851         *tables = *anchor = NULL;
 852         *tables_len = *anchor_len = 0;
 853         return;
 854     }
 855
 856     if (!smbios_immutable) {
 857         smbios_build_type_0_table();
 858         smbios_build_type_1_table();
 859         smbios_build_type_2_table();
 860         smbios_build_type_3_table();
 861
 862         smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus,
 863                                           ms->smp.cores * ms->smp.threads);
 864         assert(smbios_smp_sockets >= 1);
 865
 866         for (i = 0; i < smbios_smp_sockets; i++) {
 867             smbios_build_type_4_table(ms, i);
 868         }
 869
 870         smbios_build_type_11_table();
 871
 872 #define MAX_DIMM_SZ (16 * GiB)
 873 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 874                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 875
 876         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 877
 878         smbios_build_type_16_table(dimm_cnt);
 879
 880         for (i = 0; i < dimm_cnt; i++) {
 881             smbios_build_type_17_table(i, GET_DIMM_SZ);
 882         }
 883
 884         for (i = 0; i < mem_array_size; i++) {
 885             smbios_build_type_19_table(i, mem_array[i].address,
 886                                        mem_array[i].length);
 887         }
 888
 889         smbios_build_type_32_table();
 890         smbios_build_type_38_table();
 891         smbios_build_type_127_table();
 892
 893         smbios_validate_table(ms);
 894         smbios_entry_point_setup();
 895         smbios_immutable = true;
 896     }
 897
 898     /* return tables blob and entry point (anchor), and their sizes */
 899     *tables = smbios_tables;
 900     *tables_len = smbios_tables_len;
 901     *anchor = (uint8_t *)&ep;
 902
 903     /* calculate length based on anchor string */
 904     if (!strncmp((char *)&ep, "_SM_", 4)) {
 905         *anchor_len = sizeof(struct smbios_21_entry_point);
 906     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 907         *anchor_len = sizeof(struct smbios_30_entry_point);
 908     } else {
 909         abort();
 910     }
 911 }
 912
 913 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 914 {
 915     const char *val = qemu_opt_get(opts, name);
 916
 917     if (val) {
 918         *dest = val;
 919     }
 920 }
 921
 922
 923 struct opt_list {
 924     const char *name;
 925     size_t *ndest;
 926     const char ***dest;
 927 };
 928
 929 static int save_opt_one(void *opaque,
 930                         const char *name, const char *value,
 931                         Error **errp)
 932 {
 933     struct opt_list *opt = opaque;
 934
 935     if (!g_str_equal(name, opt->name)) {
 936         return 0;
 937     }
 938
 939     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 940     (*opt->dest)[*opt->ndest] = value;
 941     (*opt->ndest)++;
 942     return 0;
 943 }
 944
 945 static void save_opt_list(size_t *ndest, const char ***dest,
 946                           QemuOpts *opts, const char *name)
 947 {
 948     struct opt_list opt = {
 949         name, ndest, dest,
 950     };
 951     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 952 }
 953
 954 void smbios_entry_add(QemuOpts *opts, Error **errp)
 955 {
 956     const char *val;
 957
 958     assert(!smbios_immutable);
 959
 960     val = qemu_opt_get(opts, "file");
 961     if (val) {
 962         struct smbios_structure_header *header;
 963         int size;
 964         struct smbios_table *table; /* legacy mode only */
 965
 966         if (!qemu_opts_validate(opts, qemu_smbios_file_opts, errp)) {
 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             if (!qemu_opts_validate(opts, qemu_smbios_type0_opts, errp)) {
1052                 return;
1053             }
1054             save_opt(&type0.vendor, opts, "vendor");
1055             save_opt(&type0.version, opts, "version");
1056             save_opt(&type0.date, opts, "date");
1057             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1058
1059             val = qemu_opt_get(opts, "release");
1060             if (val) {
1061                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1062                     error_setg(errp, "Invalid release");
1063                     return;
1064                 }
1065                 type0.have_major_minor = true;
1066             }
1067             return;
1068         case 1:
1069             if (!qemu_opts_validate(opts, qemu_smbios_type1_opts, errp)) {
1070                 return;
1071             }
1072             save_opt(&type1.manufacturer, opts, "manufacturer");
1073             save_opt(&type1.product, opts, "product");
1074             save_opt(&type1.version, opts, "version");
1075             save_opt(&type1.serial, opts, "serial");
1076             save_opt(&type1.sku, opts, "sku");
1077             save_opt(&type1.family, opts, "family");
1078
1079             val = qemu_opt_get(opts, "uuid");
1080             if (val) {
1081                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1082                     error_setg(errp, "Invalid UUID");
1083                     return;
1084                 }
1085                 qemu_uuid_set = true;
1086             }
1087             return;
1088         case 2:
1089             if (!qemu_opts_validate(opts, qemu_smbios_type2_opts, errp)) {
1090                 return;
1091             }
1092             save_opt(&type2.manufacturer, opts, "manufacturer");
1093             save_opt(&type2.product, opts, "product");
1094             save_opt(&type2.version, opts, "version");
1095             save_opt(&type2.serial, opts, "serial");
1096             save_opt(&type2.asset, opts, "asset");
1097             save_opt(&type2.location, opts, "location");
1098             return;
1099         case 3:
1100             if (!qemu_opts_validate(opts, qemu_smbios_type3_opts, errp)) {
1101                 return;
1102             }
1103             save_opt(&type3.manufacturer, opts, "manufacturer");
1104             save_opt(&type3.version, opts, "version");
1105             save_opt(&type3.serial, opts, "serial");
1106             save_opt(&type3.asset, opts, "asset");
1107             save_opt(&type3.sku, opts, "sku");
1108             return;
1109         case 4:
1110             if (!qemu_opts_validate(opts, qemu_smbios_type4_opts, errp)) {
1111                 return;
1112             }
1113             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1114             save_opt(&type4.manufacturer, opts, "manufacturer");
1115             save_opt(&type4.version, opts, "version");
1116             save_opt(&type4.serial, opts, "serial");
1117             save_opt(&type4.asset, opts, "asset");
1118             save_opt(&type4.part, opts, "part");
1119             return;
1120         case 11:
1121             if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) {
1122                 return;
1123             }
1124             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1125             return;
1126         case 17:
1127             if (!qemu_opts_validate(opts, qemu_smbios_type17_opts, errp)) {
1128                 return;
1129             }
1130             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1131             save_opt(&type17.bank, opts, "bank");
1132             save_opt(&type17.manufacturer, opts, "manufacturer");
1133             save_opt(&type17.serial, opts, "serial");
1134             save_opt(&type17.asset, opts, "asset");
1135             save_opt(&type17.part, opts, "part");
1136             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1137             return;
1138         default:
1139             error_setg(errp,
1140                        "Don't know how to build fields for SMBIOS type %ld",
1141                        type);
1142             return;
1143         }
1144     }
1145
1146     error_setg(errp, "Must specify type= or file=");
1147 }