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 "sysemu/cpus.h"
  28 #include "hw/firmware/smbios.h"
  29 #include "hw/loader.h"
  30 #include "hw/boards.h"
  31 #include "smbios_build.h"
  32
  33 /* legacy structures and constants for <= 2.0 machines */
  34 struct smbios_header {
  35     uint16_t length;
  36     uint8_t type;
  37 } QEMU_PACKED;
  38
  39 struct smbios_field {
  40     struct smbios_header header;
  41     uint8_t type;
  42     uint16_t offset;
  43     uint8_t data[];
  44 } QEMU_PACKED;
  45
  46 struct smbios_table {
  47     struct smbios_header header;
  48     uint8_t data[];
  49 } QEMU_PACKED;
  50
  51 #define SMBIOS_FIELD_ENTRY 0
  52 #define SMBIOS_TABLE_ENTRY 1
  53
  54 static uint8_t *smbios_entries;
  55 static size_t smbios_entries_len;
  56 static bool smbios_legacy = true;
  57 static bool smbios_uuid_encoded = true;
  58 /* end: legacy structures & constants for <= 2.0 machines */
  59
  60
  61 uint8_t *smbios_tables;
  62 size_t smbios_tables_len;
  63 unsigned smbios_table_max;
  64 unsigned smbios_table_cnt;
  65 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
  66
  67 static SmbiosEntryPoint ep;
  68
  69 static int smbios_type4_count = 0;
  70 static bool smbios_immutable;
  71 static bool smbios_have_defaults;
  72 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
  73
  74 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
  75 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
  76
  77 static struct {
  78     const char *vendor, *version, *date;
  79     bool have_major_minor, uefi;
  80     uint8_t major, minor;
  81 } type0;
  82
  83 static struct {
  84     const char *manufacturer, *product, *version, *serial, *sku, *family;
  85     /* uuid is in qemu_uuid */
  86 } type1;
  87
  88 static struct {
  89     const char *manufacturer, *product, *version, *serial, *asset, *location;
  90 } type2;
  91
  92 static struct {
  93     const char *manufacturer, *version, *serial, *asset, *sku;
  94 } type3;
  95
  96 static struct {
  97     const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
  98 } type4;
  99
 100 static struct {
 101     size_t nvalues;
 102     const char **values;
 103 } type11;
 104
 105 static struct {
 106     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
 107     uint16_t speed;
 108 } type17;
 109
 110 static QemuOptsList qemu_smbios_opts = {
 111     .name = "smbios",
 112     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 113     .desc = {
 114         /*
 115          * no elements => accept any params
 116          * validation will happen later
 117          */
 118         { /* end of list */ }
 119     }
 120 };
 121
 122 static const QemuOptDesc qemu_smbios_file_opts[] = {
 123     {
 124         .name = "file",
 125         .type = QEMU_OPT_STRING,
 126         .help = "binary file containing an SMBIOS element",
 127     },
 128     { /* end of list */ }
 129 };
 130
 131 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 132     {
 133         .name = "type",
 134         .type = QEMU_OPT_NUMBER,
 135         .help = "SMBIOS element type",
 136     },{
 137         .name = "vendor",
 138         .type = QEMU_OPT_STRING,
 139         .help = "vendor name",
 140     },{
 141         .name = "version",
 142         .type = QEMU_OPT_STRING,
 143         .help = "version number",
 144     },{
 145         .name = "date",
 146         .type = QEMU_OPT_STRING,
 147         .help = "release date",
 148     },{
 149         .name = "release",
 150         .type = QEMU_OPT_STRING,
 151         .help = "revision number",
 152     },{
 153         .name = "uefi",
 154         .type = QEMU_OPT_BOOL,
 155         .help = "uefi support",
 156     },
 157     { /* end of list */ }
 158 };
 159
 160 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 161     {
 162         .name = "type",
 163         .type = QEMU_OPT_NUMBER,
 164         .help = "SMBIOS element type",
 165     },{
 166         .name = "manufacturer",
 167         .type = QEMU_OPT_STRING,
 168         .help = "manufacturer name",
 169     },{
 170         .name = "product",
 171         .type = QEMU_OPT_STRING,
 172         .help = "product name",
 173     },{
 174         .name = "version",
 175         .type = QEMU_OPT_STRING,
 176         .help = "version number",
 177     },{
 178         .name = "serial",
 179         .type = QEMU_OPT_STRING,
 180         .help = "serial number",
 181     },{
 182         .name = "uuid",
 183         .type = QEMU_OPT_STRING,
 184         .help = "UUID",
 185     },{
 186         .name = "sku",
 187         .type = QEMU_OPT_STRING,
 188         .help = "SKU number",
 189     },{
 190         .name = "family",
 191         .type = QEMU_OPT_STRING,
 192         .help = "family name",
 193     },
 194     { /* end of list */ }
 195 };
 196
 197 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 198     {
 199         .name = "type",
 200         .type = QEMU_OPT_NUMBER,
 201         .help = "SMBIOS element type",
 202     },{
 203         .name = "manufacturer",
 204         .type = QEMU_OPT_STRING,
 205         .help = "manufacturer name",
 206     },{
 207         .name = "product",
 208         .type = QEMU_OPT_STRING,
 209         .help = "product name",
 210     },{
 211         .name = "version",
 212         .type = QEMU_OPT_STRING,
 213         .help = "version number",
 214     },{
 215         .name = "serial",
 216         .type = QEMU_OPT_STRING,
 217         .help = "serial number",
 218     },{
 219         .name = "asset",
 220         .type = QEMU_OPT_STRING,
 221         .help = "asset tag number",
 222     },{
 223         .name = "location",
 224         .type = QEMU_OPT_STRING,
 225         .help = "location in chassis",
 226     },
 227     { /* end of list */ }
 228 };
 229
 230 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 231     {
 232         .name = "type",
 233         .type = QEMU_OPT_NUMBER,
 234         .help = "SMBIOS element type",
 235     },{
 236         .name = "manufacturer",
 237         .type = QEMU_OPT_STRING,
 238         .help = "manufacturer name",
 239     },{
 240         .name = "version",
 241         .type = QEMU_OPT_STRING,
 242         .help = "version number",
 243     },{
 244         .name = "serial",
 245         .type = QEMU_OPT_STRING,
 246         .help = "serial number",
 247     },{
 248         .name = "asset",
 249         .type = QEMU_OPT_STRING,
 250         .help = "asset tag number",
 251     },{
 252         .name = "sku",
 253         .type = QEMU_OPT_STRING,
 254         .help = "SKU number",
 255     },
 256     { /* end of list */ }
 257 };
 258
 259 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 260     {
 261         .name = "type",
 262         .type = QEMU_OPT_NUMBER,
 263         .help = "SMBIOS element type",
 264     },{
 265         .name = "sock_pfx",
 266         .type = QEMU_OPT_STRING,
 267         .help = "socket designation string prefix",
 268     },{
 269         .name = "manufacturer",
 270         .type = QEMU_OPT_STRING,
 271         .help = "manufacturer name",
 272     },{
 273         .name = "version",
 274         .type = QEMU_OPT_STRING,
 275         .help = "version number",
 276     },{
 277         .name = "serial",
 278         .type = QEMU_OPT_STRING,
 279         .help = "serial number",
 280     },{
 281         .name = "asset",
 282         .type = QEMU_OPT_STRING,
 283         .help = "asset tag number",
 284     },{
 285         .name = "part",
 286         .type = QEMU_OPT_STRING,
 287         .help = "part number",
 288     },
 289     { /* end of list */ }
 290 };
 291
 292 static const QemuOptDesc qemu_smbios_type11_opts[] = {
 293     {
 294         .name = "value",
 295         .type = QEMU_OPT_STRING,
 296         .help = "OEM string data",
 297     },
 298 };
 299
 300 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 301     {
 302         .name = "type",
 303         .type = QEMU_OPT_NUMBER,
 304         .help = "SMBIOS element type",
 305     },{
 306         .name = "loc_pfx",
 307         .type = QEMU_OPT_STRING,
 308         .help = "device locator string prefix",
 309     },{
 310         .name = "bank",
 311         .type = QEMU_OPT_STRING,
 312         .help = "bank locator string",
 313     },{
 314         .name = "manufacturer",
 315         .type = QEMU_OPT_STRING,
 316         .help = "manufacturer name",
 317     },{
 318         .name = "serial",
 319         .type = QEMU_OPT_STRING,
 320         .help = "serial number",
 321     },{
 322         .name = "asset",
 323         .type = QEMU_OPT_STRING,
 324         .help = "asset tag number",
 325     },{
 326         .name = "part",
 327         .type = QEMU_OPT_STRING,
 328         .help = "part number",
 329     },{
 330         .name = "speed",
 331         .type = QEMU_OPT_NUMBER,
 332         .help = "maximum capable speed",
 333     },
 334     { /* end of list */ }
 335 };
 336
 337 static void smbios_register_config(void)
 338 {
 339     qemu_add_opts(&qemu_smbios_opts);
 340 }
 341
 342 opts_init(smbios_register_config);
 343
 344 static void smbios_validate_table(MachineState *ms)
 345 {
 346     uint32_t expect_t4_count = smbios_legacy ?
 347                                         ms->smp.cpus : smbios_smp_sockets;
 348
 349     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 350         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 351                      expect_t4_count, smbios_type4_count);
 352         exit(1);
 353     }
 354 }
 355
 356
 357 /* legacy setup functions for <= 2.0 machines */
 358 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 359 {
 360     struct smbios_field *field;
 361
 362     if (!smbios_entries) {
 363         smbios_entries_len = sizeof(uint16_t);
 364         smbios_entries = g_malloc0(smbios_entries_len);
 365     }
 366     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 367                                                   sizeof(*field) + len);
 368     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 369     field->header.type = SMBIOS_FIELD_ENTRY;
 370     field->header.length = cpu_to_le16(sizeof(*field) + len);
 371
 372     field->type = type;
 373     field->offset = cpu_to_le16(offset);
 374     memcpy(field->data, data, len);
 375
 376     smbios_entries_len += sizeof(*field) + len;
 377     (*(uint16_t *)smbios_entries) =
 378             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 379 }
 380
 381 static void smbios_maybe_add_str(int type, int offset, const char *data)
 382 {
 383     if (data) {
 384         smbios_add_field(type, offset, data, strlen(data) + 1);
 385     }
 386 }
 387
 388 static void smbios_build_type_0_fields(void)
 389 {
 390     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 391                          type0.vendor);
 392     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 393                          type0.version);
 394     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 395                                      bios_release_date_str),
 396                          type0.date);
 397     if (type0.have_major_minor) {
 398         smbios_add_field(0, offsetof(struct smbios_type_0,
 399                                      system_bios_major_release),
 400                          &type0.major, 1);
 401         smbios_add_field(0, offsetof(struct smbios_type_0,
 402                                      system_bios_minor_release),
 403                          &type0.minor, 1);
 404     }
 405 }
 406
 407 static void smbios_build_type_1_fields(void)
 408 {
 409     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 410                          type1.manufacturer);
 411     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 412                          type1.product);
 413     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 414                          type1.version);
 415     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 416                          type1.serial);
 417     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 418                          type1.sku);
 419     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 420                          type1.family);
 421     if (qemu_uuid_set) {
 422         /* We don't encode the UUID in the "wire format" here because this
 423          * function is for legacy mode and needs to keep the guest ABI, and
 424          * because we don't know what's the SMBIOS version advertised by the
 425          * BIOS.
 426          */
 427         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 428                          &qemu_uuid, 16);
 429     }
 430 }
 431
 432 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length)
 433 {
 434     if (!smbios_legacy) {
 435         *length = 0;
 436         return NULL;
 437     }
 438
 439     if (!smbios_immutable) {
 440         smbios_build_type_0_fields();
 441         smbios_build_type_1_fields();
 442         smbios_validate_table(ms);
 443         smbios_immutable = true;
 444     }
 445     *length = smbios_entries_len;
 446     return smbios_entries;
 447 }
 448 /* end: legacy setup functions for <= 2.0 machines */
 449
 450
 451 bool smbios_skip_table(uint8_t type, bool required_table)
 452 {
 453     if (test_bit(type, have_binfile_bitmap)) {
 454         return true; /* user provided their own binary blob(s) */
 455     }
 456     if (test_bit(type, have_fields_bitmap)) {
 457         return false; /* user provided fields via command line */
 458     }
 459     if (smbios_have_defaults && required_table) {
 460         return false; /* we're building tables, and this one's required */
 461     }
 462     return true;
 463 }
 464
 465 static void smbios_build_type_0_table(void)
 466 {
 467     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 468
 469     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 470     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 471
 472     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 473
 474     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 475
 476     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 477
 478     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 479     t->bios_characteristics_extension_bytes[0] = 0;
 480     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 481     if (type0.uefi) {
 482         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 483     }
 484
 485     if (type0.have_major_minor) {
 486         t->system_bios_major_release = type0.major;
 487         t->system_bios_minor_release = type0.minor;
 488     } else {
 489         t->system_bios_major_release = 0;
 490         t->system_bios_minor_release = 0;
 491     }
 492
 493     /* hardcoded in SeaBIOS */
 494     t->embedded_controller_major_release = 0xFF;
 495     t->embedded_controller_minor_release = 0xFF;
 496
 497     SMBIOS_BUILD_TABLE_POST;
 498 }
 499
 500 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 501  * format specified by SMBIOS version 2.6.
 502  */
 503 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 504 {
 505     memcpy(uuid, in, 16);
 506     if (smbios_uuid_encoded) {
 507         uuid->time_low = bswap32(uuid->time_low);
 508         uuid->time_mid = bswap16(uuid->time_mid);
 509         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 510     }
 511 }
 512
 513 static void smbios_build_type_1_table(void)
 514 {
 515     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 516
 517     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 518     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 519     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 520     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 521     if (qemu_uuid_set) {
 522         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 523     } else {
 524         memset(&t->uuid, 0, 16);
 525     }
 526     t->wake_up_type = 0x06; /* power switch */
 527     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 528     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 529
 530     SMBIOS_BUILD_TABLE_POST;
 531 }
 532
 533 static void smbios_build_type_2_table(void)
 534 {
 535     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 536
 537     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 538     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 539     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 540     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 541     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 542     t->feature_flags = 0x01; /* Motherboard */
 543     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 544     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 545     t->board_type = 0x0A; /* Motherboard */
 546     t->contained_element_count = 0;
 547
 548     SMBIOS_BUILD_TABLE_POST;
 549 }
 550
 551 static void smbios_build_type_3_table(void)
 552 {
 553     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 554
 555     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 556     t->type = 0x01; /* Other */
 557     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 558     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 559     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 560     t->boot_up_state = 0x03; /* Safe */
 561     t->power_supply_state = 0x03; /* Safe */
 562     t->thermal_state = 0x03; /* Safe */
 563     t->security_status = 0x02; /* Unknown */
 564     t->oem_defined = cpu_to_le32(0);
 565     t->height = 0;
 566     t->number_of_power_cords = 0;
 567     t->contained_element_count = 0;
 568     t->contained_element_record_length = 0;
 569     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 570
 571     SMBIOS_BUILD_TABLE_POST;
 572 }
 573
 574 static void smbios_build_type_4_table(MachineState *ms, unsigned instance)
 575 {
 576     char sock_str[128];
 577
 578     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 579
 580     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 581     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 582     t->processor_type = 0x03; /* CPU */
 583     t->processor_family = 0x01; /* Other */
 584     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 585     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 586     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 587     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 588     t->voltage = 0;
 589     t->external_clock = cpu_to_le16(0); /* Unknown */
 590     /* SVVP requires max_speed and current_speed to not be unknown. */
 591     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 592     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 593     t->status = 0x41; /* Socket populated, CPU enabled */
 594     t->processor_upgrade = 0x01; /* Other */
 595     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 596     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 597     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 598     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 599     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 600     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 601     t->core_count = t->core_enabled = ms->smp.cores;
 602     t->thread_count = ms->smp.threads;
 603     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 604     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 605
 606     SMBIOS_BUILD_TABLE_POST;
 607     smbios_type4_count++;
 608 }
 609
 610 static void smbios_build_type_11_table(void)
 611 {
 612     char count_str[128];
 613     size_t i;
 614
 615     if (type11.nvalues == 0) {
 616         return;
 617     }
 618
 619     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 620
 621     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 622     t->count = type11.nvalues;
 623
 624     for (i = 0; i < type11.nvalues; i++) {
 625         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 626     }
 627
 628     SMBIOS_BUILD_TABLE_POST;
 629 }
 630
 631 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 632
 633 static void smbios_build_type_16_table(unsigned dimm_cnt)
 634 {
 635     uint64_t size_kb;
 636
 637     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 638
 639     t->location = 0x01; /* Other */
 640     t->use = 0x03; /* System memory */
 641     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 642     size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
 643     if (size_kb < MAX_T16_STD_SZ) {
 644         t->maximum_capacity = cpu_to_le32(size_kb);
 645         t->extended_maximum_capacity = cpu_to_le64(0);
 646     } else {
 647         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 648         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 649     }
 650     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 651     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 652
 653     SMBIOS_BUILD_TABLE_POST;
 654 }
 655
 656 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 657 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 658
 659 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 660 {
 661     char loc_str[128];
 662     uint64_t size_mb;
 663
 664     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 665
 666     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 667     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 668     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 669     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 670     size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
 671     if (size_mb < MAX_T17_STD_SZ) {
 672         t->size = cpu_to_le16(size_mb);
 673         t->extended_size = cpu_to_le32(0);
 674     } else {
 675         assert(size_mb < MAX_T17_EXT_SZ);
 676         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 677         t->extended_size = cpu_to_le32(size_mb);
 678     }
 679     t->form_factor = 0x09; /* DIMM */
 680     t->device_set = 0; /* Not in a set */
 681     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 682     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 683     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 684     t->memory_type = 0x07; /* RAM */
 685     t->type_detail = cpu_to_le16(0x02); /* Other */
 686     t->speed = cpu_to_le16(type17.speed);
 687     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 688     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 689     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 690     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 691     t->attributes = 0; /* Unknown */
 692     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 693     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 694     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 695     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 696
 697     SMBIOS_BUILD_TABLE_POST;
 698 }
 699
 700 static void smbios_build_type_19_table(unsigned instance,
 701                                        uint64_t start, uint64_t size)
 702 {
 703     uint64_t end, start_kb, end_kb;
 704
 705     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 706
 707     end = start + size - 1;
 708     assert(end > start);
 709     start_kb = start / KiB;
 710     end_kb = end / KiB;
 711     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 712         t->starting_address = cpu_to_le32(start_kb);
 713         t->ending_address = cpu_to_le32(end_kb);
 714         t->extended_starting_address =
 715             t->extended_ending_address = cpu_to_le64(0);
 716     } else {
 717         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 718         t->extended_starting_address = cpu_to_le64(start);
 719         t->extended_ending_address = cpu_to_le64(end);
 720     }
 721     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 722     t->partition_width = 1; /* One device per row */
 723
 724     SMBIOS_BUILD_TABLE_POST;
 725 }
 726
 727 static void smbios_build_type_32_table(void)
 728 {
 729     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 730
 731     memset(t->reserved, 0, 6);
 732     t->boot_status = 0; /* No errors detected */
 733
 734     SMBIOS_BUILD_TABLE_POST;
 735 }
 736
 737 static void smbios_build_type_127_table(void)
 738 {
 739     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 740     SMBIOS_BUILD_TABLE_POST;
 741 }
 742
 743 void smbios_set_cpuid(uint32_t version, uint32_t features)
 744 {
 745     smbios_cpuid_version = version;
 746     smbios_cpuid_features = features;
 747 }
 748
 749 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 750     if (!field) {                                                         \
 751         field = value;                                                    \
 752     }
 753
 754 void smbios_set_defaults(const char *manufacturer, const char *product,
 755                          const char *version, bool legacy_mode,
 756                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 757 {
 758     smbios_have_defaults = true;
 759     smbios_legacy = legacy_mode;
 760     smbios_uuid_encoded = uuid_encoded;
 761     smbios_ep_type = ep_type;
 762
 763     /* drop unwanted version of command-line file blob(s) */
 764     if (smbios_legacy) {
 765         g_free(smbios_tables);
 766         /* in legacy mode, also complain if fields were given for types > 1 */
 767         if (find_next_bit(have_fields_bitmap,
 768                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 769             error_report("can't process fields for smbios "
 770                          "types > 1 on machine versions < 2.1!");
 771             exit(1);
 772         }
 773     } else {
 774         g_free(smbios_entries);
 775     }
 776
 777     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 778     SMBIOS_SET_DEFAULT(type1.product, product);
 779     SMBIOS_SET_DEFAULT(type1.version, version);
 780     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 781     SMBIOS_SET_DEFAULT(type2.product, product);
 782     SMBIOS_SET_DEFAULT(type2.version, version);
 783     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 784     SMBIOS_SET_DEFAULT(type3.version, version);
 785     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 786     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 787     SMBIOS_SET_DEFAULT(type4.version, version);
 788     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 789     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 790 }
 791
 792 static void smbios_entry_point_setup(void)
 793 {
 794     switch (smbios_ep_type) {
 795     case SMBIOS_ENTRY_POINT_21:
 796         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 797         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 798         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 799         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 800         memset(ep.ep21.formatted_area, 0, 5);
 801
 802         /* compliant with smbios spec v2.8 */
 803         ep.ep21.smbios_major_version = 2;
 804         ep.ep21.smbios_minor_version = 8;
 805         ep.ep21.smbios_bcd_revision = 0x28;
 806
 807         /* set during table construction, but BIOS may override: */
 808         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 809         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 810         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 811
 812         /* BIOS must recalculate */
 813         ep.ep21.checksum = 0;
 814         ep.ep21.intermediate_checksum = 0;
 815         ep.ep21.structure_table_address = cpu_to_le32(0);
 816
 817         break;
 818     case SMBIOS_ENTRY_POINT_30:
 819         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 820         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 821         ep.ep30.entry_point_revision = 1;
 822         ep.ep30.reserved = 0;
 823
 824         /* compliant with smbios spec 3.0 */
 825         ep.ep30.smbios_major_version = 3;
 826         ep.ep30.smbios_minor_version = 0;
 827         ep.ep30.smbios_doc_rev = 0;
 828
 829         /* set during table construct, but BIOS might override */
 830         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 831
 832         /* BIOS must recalculate */
 833         ep.ep30.checksum = 0;
 834         ep.ep30.structure_table_address = cpu_to_le64(0);
 835
 836         break;
 837     default:
 838         abort();
 839         break;
 840     }
 841 }
 842
 843 void smbios_get_tables(MachineState *ms,
 844                        const struct smbios_phys_mem_area *mem_array,
 845                        const unsigned int mem_array_size,
 846                        uint8_t **tables, size_t *tables_len,
 847                        uint8_t **anchor, size_t *anchor_len)
 848 {
 849     unsigned i, dimm_cnt;
 850
 851     if (smbios_legacy) {
 852         *tables = *anchor = NULL;
 853         *tables_len = *anchor_len = 0;
 854         return;
 855     }
 856
 857     if (!smbios_immutable) {
 858         smbios_build_type_0_table();
 859         smbios_build_type_1_table();
 860         smbios_build_type_2_table();
 861         smbios_build_type_3_table();
 862
 863         smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus,
 864                                           ms->smp.cores * ms->smp.threads);
 865         assert(smbios_smp_sockets >= 1);
 866
 867         for (i = 0; i < smbios_smp_sockets; i++) {
 868             smbios_build_type_4_table(ms, i);
 869         }
 870
 871         smbios_build_type_11_table();
 872
 873 #define MAX_DIMM_SZ (16 * GiB)
 874 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 875                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 876
 877         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 878
 879         smbios_build_type_16_table(dimm_cnt);
 880
 881         for (i = 0; i < dimm_cnt; i++) {
 882             smbios_build_type_17_table(i, GET_DIMM_SZ);
 883         }
 884
 885         for (i = 0; i < mem_array_size; i++) {
 886             smbios_build_type_19_table(i, mem_array[i].address,
 887                                        mem_array[i].length);
 888         }
 889
 890         smbios_build_type_32_table();
 891         smbios_build_type_38_table();
 892         smbios_build_type_127_table();
 893
 894         smbios_validate_table(ms);
 895         smbios_entry_point_setup();
 896         smbios_immutable = true;
 897     }
 898
 899     /* return tables blob and entry point (anchor), and their sizes */
 900     *tables = smbios_tables;
 901     *tables_len = smbios_tables_len;
 902     *anchor = (uint8_t *)&ep;
 903
 904     /* calculate length based on anchor string */
 905     if (!strncmp((char *)&ep, "_SM_", 4)) {
 906         *anchor_len = sizeof(struct smbios_21_entry_point);
 907     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 908         *anchor_len = sizeof(struct smbios_30_entry_point);
 909     } else {
 910         abort();
 911     }
 912 }
 913
 914 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 915 {
 916     const char *val = qemu_opt_get(opts, name);
 917
 918     if (val) {
 919         *dest = val;
 920     }
 921 }
 922
 923
 924 struct opt_list {
 925     const char *name;
 926     size_t *ndest;
 927     const char ***dest;
 928 };
 929
 930 static int save_opt_one(void *opaque,
 931                         const char *name, const char *value,
 932                         Error **errp)
 933 {
 934     struct opt_list *opt = opaque;
 935
 936     if (!g_str_equal(name, opt->name)) {
 937         return 0;
 938     }
 939
 940     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 941     (*opt->dest)[*opt->ndest] = value;
 942     (*opt->ndest)++;
 943     return 0;
 944 }
 945
 946 static void save_opt_list(size_t *ndest, const char ***dest,
 947                           QemuOpts *opts, const char *name)
 948 {
 949     struct opt_list opt = {
 950         name, ndest, dest,
 951     };
 952     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 953 }
 954
 955 void smbios_entry_add(QemuOpts *opts, Error **errp)
 956 {
 957     Error *err = NULL;
 958     const char *val;
 959
 960     assert(!smbios_immutable);
 961
 962     val = qemu_opt_get(opts, "file");
 963     if (val) {
 964         struct smbios_structure_header *header;
 965         int size;
 966         struct smbios_table *table; /* legacy mode only */
 967
 968         qemu_opts_validate(opts, qemu_smbios_file_opts, &err);
 969         if (err) {
 970             error_propagate(errp, err);
 971             return;
 972         }
 973
 974         size = get_image_size(val);
 975         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 976             error_setg(errp, "Cannot read SMBIOS file %s", val);
 977             return;
 978         }
 979
 980         /*
 981          * NOTE: standard double '\0' terminator expected, per smbios spec.
 982          * (except in legacy mode, where the second '\0' is implicit and
 983          *  will be inserted by the BIOS).
 984          */
 985         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 986         header = (struct smbios_structure_header *)(smbios_tables +
 987                                                     smbios_tables_len);
 988
 989         if (load_image_size(val, (uint8_t *)header, size) != size) {
 990             error_setg(errp, "Failed to load SMBIOS file %s", val);
 991             return;
 992         }
 993
 994         if (test_bit(header->type, have_fields_bitmap)) {
 995             error_setg(errp,
 996                        "can't load type %d struct, fields already specified!",
 997                        header->type);
 998             return;
 999         }
1000         set_bit(header->type, have_binfile_bitmap);
1001
1002         if (header->type == 4) {
1003             smbios_type4_count++;
1004         }
1005
1006         smbios_tables_len += size;
1007         if (size > smbios_table_max) {
1008             smbios_table_max = size;
1009         }
1010         smbios_table_cnt++;
1011
1012         /* add a copy of the newly loaded blob to legacy smbios_entries */
1013         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1014          *       yet know which mode (legacy vs. aggregate-table) will be
1015          *       required. We therefore add the binary blob to both legacy
1016          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1017          *       delete the one we don't need from smbios_set_defaults(),
1018          *       once we know which machine version has been requested.
1019          */
1020         if (!smbios_entries) {
1021             smbios_entries_len = sizeof(uint16_t);
1022             smbios_entries = g_malloc0(smbios_entries_len);
1023         }
1024         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1025                                                    size + sizeof(*table));
1026         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1027         table->header.type = SMBIOS_TABLE_ENTRY;
1028         table->header.length = cpu_to_le16(sizeof(*table) + size);
1029         memcpy(table->data, header, size);
1030         smbios_entries_len += sizeof(*table) + size;
1031         (*(uint16_t *)smbios_entries) =
1032                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1033         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1034
1035         return;
1036     }
1037
1038     val = qemu_opt_get(opts, "type");
1039     if (val) {
1040         unsigned long type = strtoul(val, NULL, 0);
1041
1042         if (type > SMBIOS_MAX_TYPE) {
1043             error_setg(errp, "out of range!");
1044             return;
1045         }
1046
1047         if (test_bit(type, have_binfile_bitmap)) {
1048             error_setg(errp, "can't add fields, binary file already loaded!");
1049             return;
1050         }
1051         set_bit(type, have_fields_bitmap);
1052
1053         switch (type) {
1054         case 0:
1055             qemu_opts_validate(opts, qemu_smbios_type0_opts, &err);
1056             if (err) {
1057                 error_propagate(errp, err);
1058                 return;
1059             }
1060             save_opt(&type0.vendor, opts, "vendor");
1061             save_opt(&type0.version, opts, "version");
1062             save_opt(&type0.date, opts, "date");
1063             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1064
1065             val = qemu_opt_get(opts, "release");
1066             if (val) {
1067                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1068                     error_setg(errp, "Invalid release");
1069                     return;
1070                 }
1071                 type0.have_major_minor = true;
1072             }
1073             return;
1074         case 1:
1075             qemu_opts_validate(opts, qemu_smbios_type1_opts, &err);
1076             if (err) {
1077                 error_propagate(errp, err);
1078                 return;
1079             }
1080             save_opt(&type1.manufacturer, opts, "manufacturer");
1081             save_opt(&type1.product, opts, "product");
1082             save_opt(&type1.version, opts, "version");
1083             save_opt(&type1.serial, opts, "serial");
1084             save_opt(&type1.sku, opts, "sku");
1085             save_opt(&type1.family, opts, "family");
1086
1087             val = qemu_opt_get(opts, "uuid");
1088             if (val) {
1089                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1090                     error_setg(errp, "Invalid UUID");
1091                     return;
1092                 }
1093                 qemu_uuid_set = true;
1094             }
1095             return;
1096         case 2:
1097             qemu_opts_validate(opts, qemu_smbios_type2_opts, &err);
1098             if (err) {
1099                 error_propagate(errp, err);
1100                 return;
1101             }
1102             save_opt(&type2.manufacturer, opts, "manufacturer");
1103             save_opt(&type2.product, opts, "product");
1104             save_opt(&type2.version, opts, "version");
1105             save_opt(&type2.serial, opts, "serial");
1106             save_opt(&type2.asset, opts, "asset");
1107             save_opt(&type2.location, opts, "location");
1108             return;
1109         case 3:
1110             qemu_opts_validate(opts, qemu_smbios_type3_opts, &err);
1111             if (err) {
1112                 error_propagate(errp, err);
1113                 return;
1114             }
1115             save_opt(&type3.manufacturer, opts, "manufacturer");
1116             save_opt(&type3.version, opts, "version");
1117             save_opt(&type3.serial, opts, "serial");
1118             save_opt(&type3.asset, opts, "asset");
1119             save_opt(&type3.sku, opts, "sku");
1120             return;
1121         case 4:
1122             qemu_opts_validate(opts, qemu_smbios_type4_opts, &err);
1123             if (err) {
1124                 error_propagate(errp, err);
1125                 return;
1126             }
1127             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1128             save_opt(&type4.manufacturer, opts, "manufacturer");
1129             save_opt(&type4.version, opts, "version");
1130             save_opt(&type4.serial, opts, "serial");
1131             save_opt(&type4.asset, opts, "asset");
1132             save_opt(&type4.part, opts, "part");
1133             return;
1134         case 11:
1135             qemu_opts_validate(opts, qemu_smbios_type11_opts, &err);
1136             if (err) {
1137                 error_propagate(errp, err);
1138                 return;
1139             }
1140             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1141             return;
1142         case 17:
1143             qemu_opts_validate(opts, qemu_smbios_type17_opts, &err);
1144             if (err) {
1145                 error_propagate(errp, err);
1146                 return;
1147             }
1148             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1149             save_opt(&type17.bank, opts, "bank");
1150             save_opt(&type17.manufacturer, opts, "manufacturer");
1151             save_opt(&type17.serial, opts, "serial");
1152             save_opt(&type17.asset, opts, "asset");
1153             save_opt(&type17.part, opts, "part");
1154             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1155             return;
1156         default:
1157             error_setg(errp,
1158                        "Don't know how to build fields for SMBIOS type %ld",
1159                        type);
1160             return;
1161         }
1162     }
1163
1164     error_setg(errp, "Must specify type= or file=");
1165 }