hw/smbios/smbios.c

   1 /*
   2  * SMBIOS Support
   3  *
   4  * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
   5  * Copyright (C) 2013 Red Hat, Inc.
   6  *
   7  * Authors:
   8  *  Alex Williamson <alex.williamson@hp.com>
   9  *  Markus Armbruster <armbru@redhat.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2.  See
  12  * the COPYING file in the top-level directory.
  13  *
  14  * Contributions after 2012-01-13 are licensed under the terms of the
  15  * GNU GPL, version 2 or (at your option) any later version.
  16  */
  17
  18 #include "qemu/osdep.h"
  19 #include "qemu/units.h"
  20 #include "qapi/error.h"
  21 #include "qemu/config-file.h"
  22 #include "qemu/error-report.h"
  23 #include "qemu/option.h"
  24 #include "sysemu/sysemu.h"
  25 #include "qemu/uuid.h"
  26 #include "sysemu/cpus.h"
  27 #include "hw/smbios/smbios.h"
  28 #include "hw/loader.h"
  29 #include "exec/cpu-common.h"
  30 #include "smbios_build.h"
  31 #include "hw/smbios/ipmi.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(void)
 345 {
 346     uint32_t expect_t4_count = smbios_legacy ? 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(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();
 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     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 568
 569     SMBIOS_BUILD_TABLE_POST;
 570 }
 571
 572 static void smbios_build_type_4_table(unsigned instance)
 573 {
 574     char sock_str[128];
 575
 576     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 577
 578     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 579     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 580     t->processor_type = 0x03; /* CPU */
 581     t->processor_family = 0x01; /* Other */
 582     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 583     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 584     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 585     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 586     t->voltage = 0;
 587     t->external_clock = cpu_to_le16(0); /* Unknown */
 588     /* SVVP requires max_speed and current_speed to not be unknown. */
 589     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 590     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 591     t->status = 0x41; /* Socket populated, CPU enabled */
 592     t->processor_upgrade = 0x01; /* Other */
 593     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 594     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 595     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 596     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 597     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 598     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 599     t->core_count = t->core_enabled = smp_cores;
 600     t->thread_count = smp_threads;
 601     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 602     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 603
 604     SMBIOS_BUILD_TABLE_POST;
 605     smbios_type4_count++;
 606 }
 607
 608 static void smbios_build_type_11_table(void)
 609 {
 610     char count_str[128];
 611     size_t i;
 612
 613     if (type11.nvalues == 0) {
 614         return;
 615     }
 616
 617     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 618
 619     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 620     t->count = type11.nvalues;
 621
 622     for (i = 0; i < type11.nvalues; i++) {
 623         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 624     }
 625
 626     SMBIOS_BUILD_TABLE_POST;
 627 }
 628
 629 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 630
 631 static void smbios_build_type_16_table(unsigned dimm_cnt)
 632 {
 633     uint64_t size_kb;
 634
 635     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 636
 637     t->location = 0x01; /* Other */
 638     t->use = 0x03; /* System memory */
 639     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 640     size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
 641     if (size_kb < MAX_T16_STD_SZ) {
 642         t->maximum_capacity = cpu_to_le32(size_kb);
 643         t->extended_maximum_capacity = cpu_to_le64(0);
 644     } else {
 645         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 646         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 647     }
 648     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 649     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 650
 651     SMBIOS_BUILD_TABLE_POST;
 652 }
 653
 654 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 655 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 656
 657 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 658 {
 659     char loc_str[128];
 660     uint64_t size_mb;
 661
 662     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 663
 664     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 665     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 666     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 667     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 668     size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
 669     if (size_mb < MAX_T17_STD_SZ) {
 670         t->size = cpu_to_le16(size_mb);
 671         t->extended_size = cpu_to_le32(0);
 672     } else {
 673         assert(size_mb < MAX_T17_EXT_SZ);
 674         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 675         t->extended_size = cpu_to_le32(size_mb);
 676     }
 677     t->form_factor = 0x09; /* DIMM */
 678     t->device_set = 0; /* Not in a set */
 679     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 680     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 681     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 682     t->memory_type = 0x07; /* RAM */
 683     t->type_detail = cpu_to_le16(0x02); /* Other */
 684     t->speed = cpu_to_le16(type17.speed);
 685     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 686     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 687     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 688     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 689     t->attributes = 0; /* Unknown */
 690     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 691     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 692     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 693     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 694
 695     SMBIOS_BUILD_TABLE_POST;
 696 }
 697
 698 static void smbios_build_type_19_table(unsigned instance,
 699                                        uint64_t start, uint64_t size)
 700 {
 701     uint64_t end, start_kb, end_kb;
 702
 703     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 704
 705     end = start + size - 1;
 706     assert(end > start);
 707     start_kb = start / KiB;
 708     end_kb = end / KiB;
 709     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 710         t->starting_address = cpu_to_le32(start_kb);
 711         t->ending_address = cpu_to_le32(end_kb);
 712         t->extended_starting_address =
 713             t->extended_ending_address = cpu_to_le64(0);
 714     } else {
 715         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 716         t->extended_starting_address = cpu_to_le64(start);
 717         t->extended_ending_address = cpu_to_le64(end);
 718     }
 719     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 720     t->partition_width = 1; /* One device per row */
 721
 722     SMBIOS_BUILD_TABLE_POST;
 723 }
 724
 725 static void smbios_build_type_32_table(void)
 726 {
 727     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 728
 729     memset(t->reserved, 0, 6);
 730     t->boot_status = 0; /* No errors detected */
 731
 732     SMBIOS_BUILD_TABLE_POST;
 733 }
 734
 735 static void smbios_build_type_127_table(void)
 736 {
 737     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 738     SMBIOS_BUILD_TABLE_POST;
 739 }
 740
 741 void smbios_set_cpuid(uint32_t version, uint32_t features)
 742 {
 743     smbios_cpuid_version = version;
 744     smbios_cpuid_features = features;
 745 }
 746
 747 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 748     if (!field) {                                                         \
 749         field = value;                                                    \
 750     }
 751
 752 void smbios_set_defaults(const char *manufacturer, const char *product,
 753                          const char *version, bool legacy_mode,
 754                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 755 {
 756     smbios_have_defaults = true;
 757     smbios_legacy = legacy_mode;
 758     smbios_uuid_encoded = uuid_encoded;
 759     smbios_ep_type = ep_type;
 760
 761     /* drop unwanted version of command-line file blob(s) */
 762     if (smbios_legacy) {
 763         g_free(smbios_tables);
 764         /* in legacy mode, also complain if fields were given for types > 1 */
 765         if (find_next_bit(have_fields_bitmap,
 766                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 767             error_report("can't process fields for smbios "
 768                          "types > 1 on machine versions < 2.1!");
 769             exit(1);
 770         }
 771     } else {
 772         g_free(smbios_entries);
 773     }
 774
 775     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 776     SMBIOS_SET_DEFAULT(type1.product, product);
 777     SMBIOS_SET_DEFAULT(type1.version, version);
 778     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 779     SMBIOS_SET_DEFAULT(type2.product, product);
 780     SMBIOS_SET_DEFAULT(type2.version, version);
 781     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 782     SMBIOS_SET_DEFAULT(type3.version, version);
 783     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 784     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 785     SMBIOS_SET_DEFAULT(type4.version, version);
 786     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 787     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 788 }
 789
 790 static void smbios_entry_point_setup(void)
 791 {
 792     switch (smbios_ep_type) {
 793     case SMBIOS_ENTRY_POINT_21:
 794         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 795         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 796         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 797         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 798         memset(ep.ep21.formatted_area, 0, 5);
 799
 800         /* compliant with smbios spec v2.8 */
 801         ep.ep21.smbios_major_version = 2;
 802         ep.ep21.smbios_minor_version = 8;
 803         ep.ep21.smbios_bcd_revision = 0x28;
 804
 805         /* set during table construction, but BIOS may override: */
 806         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 807         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 808         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 809
 810         /* BIOS must recalculate */
 811         ep.ep21.checksum = 0;
 812         ep.ep21.intermediate_checksum = 0;
 813         ep.ep21.structure_table_address = cpu_to_le32(0);
 814
 815         break;
 816     case SMBIOS_ENTRY_POINT_30:
 817         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 818         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 819         ep.ep30.entry_point_revision = 1;
 820         ep.ep30.reserved = 0;
 821
 822         /* compliant with smbios spec 3.0 */
 823         ep.ep30.smbios_major_version = 3;
 824         ep.ep30.smbios_minor_version = 0;
 825         ep.ep30.smbios_doc_rev = 0;
 826
 827         /* set during table construct, but BIOS might override */
 828         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 829
 830         /* BIOS must recalculate */
 831         ep.ep30.checksum = 0;
 832         ep.ep30.structure_table_address = cpu_to_le64(0);
 833
 834         break;
 835     default:
 836         abort();
 837         break;
 838     }
 839 }
 840
 841 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
 842                        const unsigned int mem_array_size,
 843                        uint8_t **tables, size_t *tables_len,
 844                        uint8_t **anchor, size_t *anchor_len)
 845 {
 846     unsigned i, dimm_cnt;
 847
 848     if (smbios_legacy) {
 849         *tables = *anchor = NULL;
 850         *tables_len = *anchor_len = 0;
 851         return;
 852     }
 853
 854     if (!smbios_immutable) {
 855         smbios_build_type_0_table();
 856         smbios_build_type_1_table();
 857         smbios_build_type_2_table();
 858         smbios_build_type_3_table();
 859
 860         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 861         assert(smbios_smp_sockets >= 1);
 862
 863         for (i = 0; i < smbios_smp_sockets; i++) {
 864             smbios_build_type_4_table(i);
 865         }
 866
 867         smbios_build_type_11_table();
 868
 869 #define MAX_DIMM_SZ (16 * GiB)
 870 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 871                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 872
 873         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 874
 875         smbios_build_type_16_table(dimm_cnt);
 876
 877         for (i = 0; i < dimm_cnt; i++) {
 878             smbios_build_type_17_table(i, GET_DIMM_SZ);
 879         }
 880
 881         for (i = 0; i < mem_array_size; i++) {
 882             smbios_build_type_19_table(i, mem_array[i].address,
 883                                        mem_array[i].length);
 884         }
 885
 886         smbios_build_type_32_table();
 887         smbios_build_type_38_table();
 888         smbios_build_type_127_table();
 889
 890         smbios_validate_table();
 891         smbios_entry_point_setup();
 892         smbios_immutable = true;
 893     }
 894
 895     /* return tables blob and entry point (anchor), and their sizes */
 896     *tables = smbios_tables;
 897     *tables_len = smbios_tables_len;
 898     *anchor = (uint8_t *)&ep;
 899
 900     /* calculate length based on anchor string */
 901     if (!strncmp((char *)&ep, "_SM_", 4)) {
 902         *anchor_len = sizeof(struct smbios_21_entry_point);
 903     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 904         *anchor_len = sizeof(struct smbios_30_entry_point);
 905     } else {
 906         abort();
 907     }
 908 }
 909
 910 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 911 {
 912     const char *val = qemu_opt_get(opts, name);
 913
 914     if (val) {
 915         *dest = val;
 916     }
 917 }
 918
 919
 920 struct opt_list {
 921     const char *name;
 922     size_t *ndest;
 923     const char ***dest;
 924 };
 925
 926 static int save_opt_one(void *opaque,
 927                         const char *name, const char *value,
 928                         Error **errp)
 929 {
 930     struct opt_list *opt = opaque;
 931
 932     if (!g_str_equal(name, opt->name)) {
 933         return 0;
 934     }
 935
 936     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 937     (*opt->dest)[*opt->ndest] = value;
 938     (*opt->ndest)++;
 939     return 0;
 940 }
 941
 942 static void save_opt_list(size_t *ndest, const char ***dest,
 943                           QemuOpts *opts, const char *name)
 944 {
 945     struct opt_list opt = {
 946         name, ndest, dest,
 947     };
 948     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 949 }
 950
 951 void smbios_entry_add(QemuOpts *opts, Error **errp)
 952 {
 953     const char *val;
 954
 955     assert(!smbios_immutable);
 956
 957     val = qemu_opt_get(opts, "file");
 958     if (val) {
 959         struct smbios_structure_header *header;
 960         int size;
 961         struct smbios_table *table; /* legacy mode only */
 962
 963         qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal);
 964
 965         size = get_image_size(val);
 966         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 967             error_report("Cannot read SMBIOS file %s", val);
 968             exit(1);
 969         }
 970
 971         /*
 972          * NOTE: standard double '\0' terminator expected, per smbios spec.
 973          * (except in legacy mode, where the second '\0' is implicit and
 974          *  will be inserted by the BIOS).
 975          */
 976         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 977         header = (struct smbios_structure_header *)(smbios_tables +
 978                                                     smbios_tables_len);
 979
 980         if (load_image(val, (uint8_t *)header) != size) {
 981             error_report("Failed to load SMBIOS file %s", val);
 982             exit(1);
 983         }
 984
 985         if (test_bit(header->type, have_fields_bitmap)) {
 986             error_report("can't load type %d struct, fields already specified!",
 987                          header->type);
 988             exit(1);
 989         }
 990         set_bit(header->type, have_binfile_bitmap);
 991
 992         if (header->type == 4) {
 993             smbios_type4_count++;
 994         }
 995
 996         smbios_tables_len += size;
 997         if (size > smbios_table_max) {
 998             smbios_table_max = size;
 999         }
1000         smbios_table_cnt++;
1001
1002         /* add a copy of the newly loaded blob to legacy smbios_entries */
1003         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1004          *       yet know which mode (legacy vs. aggregate-table) will be
1005          *       required. We therefore add the binary blob to both legacy
1006          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1007          *       delete the one we don't need from smbios_set_defaults(),
1008          *       once we know which machine version has been requested.
1009          */
1010         if (!smbios_entries) {
1011             smbios_entries_len = sizeof(uint16_t);
1012             smbios_entries = g_malloc0(smbios_entries_len);
1013         }
1014         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1015                                                    size + sizeof(*table));
1016         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1017         table->header.type = SMBIOS_TABLE_ENTRY;
1018         table->header.length = cpu_to_le16(sizeof(*table) + size);
1019         memcpy(table->data, header, size);
1020         smbios_entries_len += sizeof(*table) + size;
1021         (*(uint16_t *)smbios_entries) =
1022                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1023         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1024
1025         return;
1026     }
1027
1028     val = qemu_opt_get(opts, "type");
1029     if (val) {
1030         unsigned long type = strtoul(val, NULL, 0);
1031
1032         if (type > SMBIOS_MAX_TYPE) {
1033             error_report("out of range!");
1034             exit(1);
1035         }
1036
1037         if (test_bit(type, have_binfile_bitmap)) {
1038             error_report("can't add fields, binary file already loaded!");
1039             exit(1);
1040         }
1041         set_bit(type, have_fields_bitmap);
1042
1043         switch (type) {
1044         case 0:
1045             qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal);
1046             save_opt(&type0.vendor, opts, "vendor");
1047             save_opt(&type0.version, opts, "version");
1048             save_opt(&type0.date, opts, "date");
1049             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1050
1051             val = qemu_opt_get(opts, "release");
1052             if (val) {
1053                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1054                     error_report("Invalid release");
1055                     exit(1);
1056                 }
1057                 type0.have_major_minor = true;
1058             }
1059             return;
1060         case 1:
1061             qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal);
1062             save_opt(&type1.manufacturer, opts, "manufacturer");
1063             save_opt(&type1.product, opts, "product");
1064             save_opt(&type1.version, opts, "version");
1065             save_opt(&type1.serial, opts, "serial");
1066             save_opt(&type1.sku, opts, "sku");
1067             save_opt(&type1.family, opts, "family");
1068
1069             val = qemu_opt_get(opts, "uuid");
1070             if (val) {
1071                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1072                     error_report("Invalid UUID");
1073                     exit(1);
1074                 }
1075                 qemu_uuid_set = true;
1076             }
1077             return;
1078         case 2:
1079             qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal);
1080             save_opt(&type2.manufacturer, opts, "manufacturer");
1081             save_opt(&type2.product, opts, "product");
1082             save_opt(&type2.version, opts, "version");
1083             save_opt(&type2.serial, opts, "serial");
1084             save_opt(&type2.asset, opts, "asset");
1085             save_opt(&type2.location, opts, "location");
1086             return;
1087         case 3:
1088             qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal);
1089             save_opt(&type3.manufacturer, opts, "manufacturer");
1090             save_opt(&type3.version, opts, "version");
1091             save_opt(&type3.serial, opts, "serial");
1092             save_opt(&type3.asset, opts, "asset");
1093             save_opt(&type3.sku, opts, "sku");
1094             return;
1095         case 4:
1096             qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal);
1097             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1098             save_opt(&type4.manufacturer, opts, "manufacturer");
1099             save_opt(&type4.version, opts, "version");
1100             save_opt(&type4.serial, opts, "serial");
1101             save_opt(&type4.asset, opts, "asset");
1102             save_opt(&type4.part, opts, "part");
1103             return;
1104         case 11:
1105             qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal);
1106             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1107             return;
1108         case 17:
1109             qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal);
1110             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1111             save_opt(&type17.bank, opts, "bank");
1112             save_opt(&type17.manufacturer, opts, "manufacturer");
1113             save_opt(&type17.serial, opts, "serial");
1114             save_opt(&type17.asset, opts, "asset");
1115             save_opt(&type17.part, opts, "part");
1116             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1117             return;
1118         default:
1119             error_report("Don't know how to build fields for SMBIOS type %ld",
1120                          type);
1121             exit(1);
1122         }
1123     }
1124
1125     error_report("Must specify type= or file=");
1126     exit(1);
1127 }