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 "exec/cpu-common.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(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     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(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 = smp_cores;
 601     t->thread_count = 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(const struct smbios_phys_mem_area *mem_array,
 843                        const unsigned int mem_array_size,
 844                        uint8_t **tables, size_t *tables_len,
 845                        uint8_t **anchor, size_t *anchor_len)
 846 {
 847     unsigned i, dimm_cnt;
 848
 849     if (smbios_legacy) {
 850         *tables = *anchor = NULL;
 851         *tables_len = *anchor_len = 0;
 852         return;
 853     }
 854
 855     if (!smbios_immutable) {
 856         smbios_build_type_0_table();
 857         smbios_build_type_1_table();
 858         smbios_build_type_2_table();
 859         smbios_build_type_3_table();
 860
 861         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 862         assert(smbios_smp_sockets >= 1);
 863
 864         for (i = 0; i < smbios_smp_sockets; i++) {
 865             smbios_build_type_4_table(i);
 866         }
 867
 868         smbios_build_type_11_table();
 869
 870 #define MAX_DIMM_SZ (16 * GiB)
 871 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 872                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 873
 874         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 875
 876         smbios_build_type_16_table(dimm_cnt);
 877
 878         for (i = 0; i < dimm_cnt; i++) {
 879             smbios_build_type_17_table(i, GET_DIMM_SZ);
 880         }
 881
 882         for (i = 0; i < mem_array_size; i++) {
 883             smbios_build_type_19_table(i, mem_array[i].address,
 884                                        mem_array[i].length);
 885         }
 886
 887         smbios_build_type_32_table();
 888         smbios_build_type_38_table();
 889         smbios_build_type_127_table();
 890
 891         smbios_validate_table();
 892         smbios_entry_point_setup();
 893         smbios_immutable = true;
 894     }
 895
 896     /* return tables blob and entry point (anchor), and their sizes */
 897     *tables = smbios_tables;
 898     *tables_len = smbios_tables_len;
 899     *anchor = (uint8_t *)&ep;
 900
 901     /* calculate length based on anchor string */
 902     if (!strncmp((char *)&ep, "_SM_", 4)) {
 903         *anchor_len = sizeof(struct smbios_21_entry_point);
 904     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 905         *anchor_len = sizeof(struct smbios_30_entry_point);
 906     } else {
 907         abort();
 908     }
 909 }
 910
 911 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 912 {
 913     const char *val = qemu_opt_get(opts, name);
 914
 915     if (val) {
 916         *dest = val;
 917     }
 918 }
 919
 920
 921 struct opt_list {
 922     const char *name;
 923     size_t *ndest;
 924     const char ***dest;
 925 };
 926
 927 static int save_opt_one(void *opaque,
 928                         const char *name, const char *value,
 929                         Error **errp)
 930 {
 931     struct opt_list *opt = opaque;
 932
 933     if (!g_str_equal(name, opt->name)) {
 934         return 0;
 935     }
 936
 937     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 938     (*opt->dest)[*opt->ndest] = value;
 939     (*opt->ndest)++;
 940     return 0;
 941 }
 942
 943 static void save_opt_list(size_t *ndest, const char ***dest,
 944                           QemuOpts *opts, const char *name)
 945 {
 946     struct opt_list opt = {
 947         name, ndest, dest,
 948     };
 949     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 950 }
 951
 952 void smbios_entry_add(QemuOpts *opts, Error **errp)
 953 {
 954     Error *err = NULL;
 955     const char *val;
 956
 957     assert(!smbios_immutable);
 958
 959     val = qemu_opt_get(opts, "file");
 960     if (val) {
 961         struct smbios_structure_header *header;
 962         int size;
 963         struct smbios_table *table; /* legacy mode only */
 964
 965         qemu_opts_validate(opts, qemu_smbios_file_opts, &err);
 966         if (err) {
 967             error_propagate(errp, err);
 968             return;
 969         }
 970
 971         size = get_image_size(val);
 972         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 973             error_setg(errp, "Cannot read SMBIOS file %s", val);
 974             return;
 975         }
 976
 977         /*
 978          * NOTE: standard double '\0' terminator expected, per smbios spec.
 979          * (except in legacy mode, where the second '\0' is implicit and
 980          *  will be inserted by the BIOS).
 981          */
 982         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 983         header = (struct smbios_structure_header *)(smbios_tables +
 984                                                     smbios_tables_len);
 985
 986         if (load_image_size(val, (uint8_t *)header, size) != size) {
 987             error_setg(errp, "Failed to load SMBIOS file %s", val);
 988             return;
 989         }
 990
 991         if (test_bit(header->type, have_fields_bitmap)) {
 992             error_setg(errp,
 993                        "can't load type %d struct, fields already specified!",
 994                        header->type);
 995             return;
 996         }
 997         set_bit(header->type, have_binfile_bitmap);
 998
 999         if (header->type == 4) {
1000             smbios_type4_count++;
1001         }
1002
1003         smbios_tables_len += size;
1004         if (size > smbios_table_max) {
1005             smbios_table_max = size;
1006         }
1007         smbios_table_cnt++;
1008
1009         /* add a copy of the newly loaded blob to legacy smbios_entries */
1010         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1011          *       yet know which mode (legacy vs. aggregate-table) will be
1012          *       required. We therefore add the binary blob to both legacy
1013          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1014          *       delete the one we don't need from smbios_set_defaults(),
1015          *       once we know which machine version has been requested.
1016          */
1017         if (!smbios_entries) {
1018             smbios_entries_len = sizeof(uint16_t);
1019             smbios_entries = g_malloc0(smbios_entries_len);
1020         }
1021         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1022                                                    size + sizeof(*table));
1023         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1024         table->header.type = SMBIOS_TABLE_ENTRY;
1025         table->header.length = cpu_to_le16(sizeof(*table) + size);
1026         memcpy(table->data, header, size);
1027         smbios_entries_len += sizeof(*table) + size;
1028         (*(uint16_t *)smbios_entries) =
1029                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1030         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1031
1032         return;
1033     }
1034
1035     val = qemu_opt_get(opts, "type");
1036     if (val) {
1037         unsigned long type = strtoul(val, NULL, 0);
1038
1039         if (type > SMBIOS_MAX_TYPE) {
1040             error_setg(errp, "out of range!");
1041             return;
1042         }
1043
1044         if (test_bit(type, have_binfile_bitmap)) {
1045             error_setg(errp, "can't add fields, binary file already loaded!");
1046             return;
1047         }
1048         set_bit(type, have_fields_bitmap);
1049
1050         switch (type) {
1051         case 0:
1052             qemu_opts_validate(opts, qemu_smbios_type0_opts, &err);
1053             if (err) {
1054                 error_propagate(errp, err);
1055                 return;
1056             }
1057             save_opt(&type0.vendor, opts, "vendor");
1058             save_opt(&type0.version, opts, "version");
1059             save_opt(&type0.date, opts, "date");
1060             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1061
1062             val = qemu_opt_get(opts, "release");
1063             if (val) {
1064                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1065                     error_setg(errp, "Invalid release");
1066                     return;
1067                 }
1068                 type0.have_major_minor = true;
1069             }
1070             return;
1071         case 1:
1072             qemu_opts_validate(opts, qemu_smbios_type1_opts, &err);
1073             if (err) {
1074                 error_propagate(errp, err);
1075                 return;
1076             }
1077             save_opt(&type1.manufacturer, opts, "manufacturer");
1078             save_opt(&type1.product, opts, "product");
1079             save_opt(&type1.version, opts, "version");
1080             save_opt(&type1.serial, opts, "serial");
1081             save_opt(&type1.sku, opts, "sku");
1082             save_opt(&type1.family, opts, "family");
1083
1084             val = qemu_opt_get(opts, "uuid");
1085             if (val) {
1086                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1087                     error_setg(errp, "Invalid UUID");
1088                     return;
1089                 }
1090                 qemu_uuid_set = true;
1091             }
1092             return;
1093         case 2:
1094             qemu_opts_validate(opts, qemu_smbios_type2_opts, &err);
1095             if (err) {
1096                 error_propagate(errp, err);
1097                 return;
1098             }
1099             save_opt(&type2.manufacturer, opts, "manufacturer");
1100             save_opt(&type2.product, opts, "product");
1101             save_opt(&type2.version, opts, "version");
1102             save_opt(&type2.serial, opts, "serial");
1103             save_opt(&type2.asset, opts, "asset");
1104             save_opt(&type2.location, opts, "location");
1105             return;
1106         case 3:
1107             qemu_opts_validate(opts, qemu_smbios_type3_opts, &err);
1108             if (err) {
1109                 error_propagate(errp, err);
1110                 return;
1111             }
1112             save_opt(&type3.manufacturer, opts, "manufacturer");
1113             save_opt(&type3.version, opts, "version");
1114             save_opt(&type3.serial, opts, "serial");
1115             save_opt(&type3.asset, opts, "asset");
1116             save_opt(&type3.sku, opts, "sku");
1117             return;
1118         case 4:
1119             qemu_opts_validate(opts, qemu_smbios_type4_opts, &err);
1120             if (err) {
1121                 error_propagate(errp, err);
1122                 return;
1123             }
1124             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1125             save_opt(&type4.manufacturer, opts, "manufacturer");
1126             save_opt(&type4.version, opts, "version");
1127             save_opt(&type4.serial, opts, "serial");
1128             save_opt(&type4.asset, opts, "asset");
1129             save_opt(&type4.part, opts, "part");
1130             return;
1131         case 11:
1132             qemu_opts_validate(opts, qemu_smbios_type11_opts, &err);
1133             if (err) {
1134                 error_propagate(errp, err);
1135                 return;
1136             }
1137             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1138             return;
1139         case 17:
1140             qemu_opts_validate(opts, qemu_smbios_type17_opts, &err);
1141             if (err) {
1142                 error_propagate(errp, err);
1143                 return;
1144             }
1145             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1146             save_opt(&type17.bank, opts, "bank");
1147             save_opt(&type17.manufacturer, opts, "manufacturer");
1148             save_opt(&type17.serial, opts, "serial");
1149             save_opt(&type17.asset, opts, "asset");
1150             save_opt(&type17.part, opts, "part");
1151             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1152             return;
1153         default:
1154             error_setg(errp,
1155                        "Don't know how to build fields for SMBIOS type %ld",
1156                        type);
1157             return;
1158         }
1159     }
1160
1161     error_setg(errp, "Must specify type= or file=");
1162 }