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 "exec/cpu-common.h"
  32 #include "smbios_build.h"
  33
  34 /* legacy structures and constants for <= 2.0 machines */
  35 struct smbios_header {
  36     uint16_t length;
  37     uint8_t type;
  38 } QEMU_PACKED;
  39
  40 struct smbios_field {
  41     struct smbios_header header;
  42     uint8_t type;
  43     uint16_t offset;
  44     uint8_t data[];
  45 } QEMU_PACKED;
  46
  47 struct smbios_table {
  48     struct smbios_header header;
  49     uint8_t data[];
  50 } QEMU_PACKED;
  51
  52 #define SMBIOS_FIELD_ENTRY 0
  53 #define SMBIOS_TABLE_ENTRY 1
  54
  55 static uint8_t *smbios_entries;
  56 static size_t smbios_entries_len;
  57 static bool smbios_legacy = true;
  58 static bool smbios_uuid_encoded = true;
  59 /* end: legacy structures & constants for <= 2.0 machines */
  60
  61
  62 uint8_t *smbios_tables;
  63 size_t smbios_tables_len;
  64 unsigned smbios_table_max;
  65 unsigned smbios_table_cnt;
  66 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
  67
  68 static SmbiosEntryPoint ep;
  69
  70 static int smbios_type4_count = 0;
  71 static bool smbios_immutable;
  72 static bool smbios_have_defaults;
  73 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
  74
  75 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
  76 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
  77
  78 static struct {
  79     const char *vendor, *version, *date;
  80     bool have_major_minor, uefi;
  81     uint8_t major, minor;
  82 } type0;
  83
  84 static struct {
  85     const char *manufacturer, *product, *version, *serial, *sku, *family;
  86     /* uuid is in qemu_uuid */
  87 } type1;
  88
  89 static struct {
  90     const char *manufacturer, *product, *version, *serial, *asset, *location;
  91 } type2;
  92
  93 static struct {
  94     const char *manufacturer, *version, *serial, *asset, *sku;
  95 } type3;
  96
  97 static struct {
  98     const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
  99 } type4;
 100
 101 static struct {
 102     size_t nvalues;
 103     const char **values;
 104 } type11;
 105
 106 static struct {
 107     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
 108     uint16_t speed;
 109 } type17;
 110
 111 static QemuOptsList qemu_smbios_opts = {
 112     .name = "smbios",
 113     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 114     .desc = {
 115         /*
 116          * no elements => accept any params
 117          * validation will happen later
 118          */
 119         { /* end of list */ }
 120     }
 121 };
 122
 123 static const QemuOptDesc qemu_smbios_file_opts[] = {
 124     {
 125         .name = "file",
 126         .type = QEMU_OPT_STRING,
 127         .help = "binary file containing an SMBIOS element",
 128     },
 129     { /* end of list */ }
 130 };
 131
 132 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 133     {
 134         .name = "type",
 135         .type = QEMU_OPT_NUMBER,
 136         .help = "SMBIOS element type",
 137     },{
 138         .name = "vendor",
 139         .type = QEMU_OPT_STRING,
 140         .help = "vendor name",
 141     },{
 142         .name = "version",
 143         .type = QEMU_OPT_STRING,
 144         .help = "version number",
 145     },{
 146         .name = "date",
 147         .type = QEMU_OPT_STRING,
 148         .help = "release date",
 149     },{
 150         .name = "release",
 151         .type = QEMU_OPT_STRING,
 152         .help = "revision number",
 153     },{
 154         .name = "uefi",
 155         .type = QEMU_OPT_BOOL,
 156         .help = "uefi support",
 157     },
 158     { /* end of list */ }
 159 };
 160
 161 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 162     {
 163         .name = "type",
 164         .type = QEMU_OPT_NUMBER,
 165         .help = "SMBIOS element type",
 166     },{
 167         .name = "manufacturer",
 168         .type = QEMU_OPT_STRING,
 169         .help = "manufacturer name",
 170     },{
 171         .name = "product",
 172         .type = QEMU_OPT_STRING,
 173         .help = "product name",
 174     },{
 175         .name = "version",
 176         .type = QEMU_OPT_STRING,
 177         .help = "version number",
 178     },{
 179         .name = "serial",
 180         .type = QEMU_OPT_STRING,
 181         .help = "serial number",
 182     },{
 183         .name = "uuid",
 184         .type = QEMU_OPT_STRING,
 185         .help = "UUID",
 186     },{
 187         .name = "sku",
 188         .type = QEMU_OPT_STRING,
 189         .help = "SKU number",
 190     },{
 191         .name = "family",
 192         .type = QEMU_OPT_STRING,
 193         .help = "family name",
 194     },
 195     { /* end of list */ }
 196 };
 197
 198 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 199     {
 200         .name = "type",
 201         .type = QEMU_OPT_NUMBER,
 202         .help = "SMBIOS element type",
 203     },{
 204         .name = "manufacturer",
 205         .type = QEMU_OPT_STRING,
 206         .help = "manufacturer name",
 207     },{
 208         .name = "product",
 209         .type = QEMU_OPT_STRING,
 210         .help = "product name",
 211     },{
 212         .name = "version",
 213         .type = QEMU_OPT_STRING,
 214         .help = "version number",
 215     },{
 216         .name = "serial",
 217         .type = QEMU_OPT_STRING,
 218         .help = "serial number",
 219     },{
 220         .name = "asset",
 221         .type = QEMU_OPT_STRING,
 222         .help = "asset tag number",
 223     },{
 224         .name = "location",
 225         .type = QEMU_OPT_STRING,
 226         .help = "location in chassis",
 227     },
 228     { /* end of list */ }
 229 };
 230
 231 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 232     {
 233         .name = "type",
 234         .type = QEMU_OPT_NUMBER,
 235         .help = "SMBIOS element type",
 236     },{
 237         .name = "manufacturer",
 238         .type = QEMU_OPT_STRING,
 239         .help = "manufacturer name",
 240     },{
 241         .name = "version",
 242         .type = QEMU_OPT_STRING,
 243         .help = "version number",
 244     },{
 245         .name = "serial",
 246         .type = QEMU_OPT_STRING,
 247         .help = "serial number",
 248     },{
 249         .name = "asset",
 250         .type = QEMU_OPT_STRING,
 251         .help = "asset tag number",
 252     },{
 253         .name = "sku",
 254         .type = QEMU_OPT_STRING,
 255         .help = "SKU number",
 256     },
 257     { /* end of list */ }
 258 };
 259
 260 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 261     {
 262         .name = "type",
 263         .type = QEMU_OPT_NUMBER,
 264         .help = "SMBIOS element type",
 265     },{
 266         .name = "sock_pfx",
 267         .type = QEMU_OPT_STRING,
 268         .help = "socket designation string prefix",
 269     },{
 270         .name = "manufacturer",
 271         .type = QEMU_OPT_STRING,
 272         .help = "manufacturer name",
 273     },{
 274         .name = "version",
 275         .type = QEMU_OPT_STRING,
 276         .help = "version number",
 277     },{
 278         .name = "serial",
 279         .type = QEMU_OPT_STRING,
 280         .help = "serial number",
 281     },{
 282         .name = "asset",
 283         .type = QEMU_OPT_STRING,
 284         .help = "asset tag number",
 285     },{
 286         .name = "part",
 287         .type = QEMU_OPT_STRING,
 288         .help = "part number",
 289     },
 290     { /* end of list */ }
 291 };
 292
 293 static const QemuOptDesc qemu_smbios_type11_opts[] = {
 294     {
 295         .name = "value",
 296         .type = QEMU_OPT_STRING,
 297         .help = "OEM string data",
 298     },
 299 };
 300
 301 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 302     {
 303         .name = "type",
 304         .type = QEMU_OPT_NUMBER,
 305         .help = "SMBIOS element type",
 306     },{
 307         .name = "loc_pfx",
 308         .type = QEMU_OPT_STRING,
 309         .help = "device locator string prefix",
 310     },{
 311         .name = "bank",
 312         .type = QEMU_OPT_STRING,
 313         .help = "bank locator string",
 314     },{
 315         .name = "manufacturer",
 316         .type = QEMU_OPT_STRING,
 317         .help = "manufacturer name",
 318     },{
 319         .name = "serial",
 320         .type = QEMU_OPT_STRING,
 321         .help = "serial number",
 322     },{
 323         .name = "asset",
 324         .type = QEMU_OPT_STRING,
 325         .help = "asset tag number",
 326     },{
 327         .name = "part",
 328         .type = QEMU_OPT_STRING,
 329         .help = "part number",
 330     },{
 331         .name = "speed",
 332         .type = QEMU_OPT_NUMBER,
 333         .help = "maximum capable speed",
 334     },
 335     { /* end of list */ }
 336 };
 337
 338 static void smbios_register_config(void)
 339 {
 340     qemu_add_opts(&qemu_smbios_opts);
 341 }
 342
 343 opts_init(smbios_register_config);
 344
 345 static void smbios_validate_table(MachineState *ms)
 346 {
 347     uint32_t expect_t4_count = smbios_legacy ?
 348                                         ms->smp.cpus : smbios_smp_sockets;
 349
 350     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 351         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 352                      expect_t4_count, smbios_type4_count);
 353         exit(1);
 354     }
 355 }
 356
 357
 358 /* legacy setup functions for <= 2.0 machines */
 359 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 360 {
 361     struct smbios_field *field;
 362
 363     if (!smbios_entries) {
 364         smbios_entries_len = sizeof(uint16_t);
 365         smbios_entries = g_malloc0(smbios_entries_len);
 366     }
 367     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 368                                                   sizeof(*field) + len);
 369     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 370     field->header.type = SMBIOS_FIELD_ENTRY;
 371     field->header.length = cpu_to_le16(sizeof(*field) + len);
 372
 373     field->type = type;
 374     field->offset = cpu_to_le16(offset);
 375     memcpy(field->data, data, len);
 376
 377     smbios_entries_len += sizeof(*field) + len;
 378     (*(uint16_t *)smbios_entries) =
 379             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 380 }
 381
 382 static void smbios_maybe_add_str(int type, int offset, const char *data)
 383 {
 384     if (data) {
 385         smbios_add_field(type, offset, data, strlen(data) + 1);
 386     }
 387 }
 388
 389 static void smbios_build_type_0_fields(void)
 390 {
 391     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 392                          type0.vendor);
 393     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 394                          type0.version);
 395     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 396                                      bios_release_date_str),
 397                          type0.date);
 398     if (type0.have_major_minor) {
 399         smbios_add_field(0, offsetof(struct smbios_type_0,
 400                                      system_bios_major_release),
 401                          &type0.major, 1);
 402         smbios_add_field(0, offsetof(struct smbios_type_0,
 403                                      system_bios_minor_release),
 404                          &type0.minor, 1);
 405     }
 406 }
 407
 408 static void smbios_build_type_1_fields(void)
 409 {
 410     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 411                          type1.manufacturer);
 412     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 413                          type1.product);
 414     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 415                          type1.version);
 416     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 417                          type1.serial);
 418     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 419                          type1.sku);
 420     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 421                          type1.family);
 422     if (qemu_uuid_set) {
 423         /* We don't encode the UUID in the "wire format" here because this
 424          * function is for legacy mode and needs to keep the guest ABI, and
 425          * because we don't know what's the SMBIOS version advertised by the
 426          * BIOS.
 427          */
 428         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 429                          &qemu_uuid, 16);
 430     }
 431 }
 432
 433 uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length)
 434 {
 435     if (!smbios_legacy) {
 436         *length = 0;
 437         return NULL;
 438     }
 439
 440     if (!smbios_immutable) {
 441         smbios_build_type_0_fields();
 442         smbios_build_type_1_fields();
 443         smbios_validate_table(ms);
 444         smbios_immutable = true;
 445     }
 446     *length = smbios_entries_len;
 447     return smbios_entries;
 448 }
 449 /* end: legacy setup functions for <= 2.0 machines */
 450
 451
 452 bool smbios_skip_table(uint8_t type, bool required_table)
 453 {
 454     if (test_bit(type, have_binfile_bitmap)) {
 455         return true; /* user provided their own binary blob(s) */
 456     }
 457     if (test_bit(type, have_fields_bitmap)) {
 458         return false; /* user provided fields via command line */
 459     }
 460     if (smbios_have_defaults && required_table) {
 461         return false; /* we're building tables, and this one's required */
 462     }
 463     return true;
 464 }
 465
 466 static void smbios_build_type_0_table(void)
 467 {
 468     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 469
 470     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 471     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 472
 473     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 474
 475     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 476
 477     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 478
 479     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 480     t->bios_characteristics_extension_bytes[0] = 0;
 481     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 482     if (type0.uefi) {
 483         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 484     }
 485
 486     if (type0.have_major_minor) {
 487         t->system_bios_major_release = type0.major;
 488         t->system_bios_minor_release = type0.minor;
 489     } else {
 490         t->system_bios_major_release = 0;
 491         t->system_bios_minor_release = 0;
 492     }
 493
 494     /* hardcoded in SeaBIOS */
 495     t->embedded_controller_major_release = 0xFF;
 496     t->embedded_controller_minor_release = 0xFF;
 497
 498     SMBIOS_BUILD_TABLE_POST;
 499 }
 500
 501 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 502  * format specified by SMBIOS version 2.6.
 503  */
 504 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 505 {
 506     memcpy(uuid, in, 16);
 507     if (smbios_uuid_encoded) {
 508         uuid->time_low = bswap32(uuid->time_low);
 509         uuid->time_mid = bswap16(uuid->time_mid);
 510         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 511     }
 512 }
 513
 514 static void smbios_build_type_1_table(void)
 515 {
 516     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 517
 518     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 519     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 520     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 521     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 522     if (qemu_uuid_set) {
 523         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 524     } else {
 525         memset(&t->uuid, 0, 16);
 526     }
 527     t->wake_up_type = 0x06; /* power switch */
 528     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 529     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 530
 531     SMBIOS_BUILD_TABLE_POST;
 532 }
 533
 534 static void smbios_build_type_2_table(void)
 535 {
 536     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 537
 538     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 539     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 540     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 541     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 542     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 543     t->feature_flags = 0x01; /* Motherboard */
 544     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 545     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 546     t->board_type = 0x0A; /* Motherboard */
 547     t->contained_element_count = 0;
 548
 549     SMBIOS_BUILD_TABLE_POST;
 550 }
 551
 552 static void smbios_build_type_3_table(void)
 553 {
 554     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 555
 556     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 557     t->type = 0x01; /* Other */
 558     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 559     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 560     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 561     t->boot_up_state = 0x03; /* Safe */
 562     t->power_supply_state = 0x03; /* Safe */
 563     t->thermal_state = 0x03; /* Safe */
 564     t->security_status = 0x02; /* Unknown */
 565     t->oem_defined = cpu_to_le32(0);
 566     t->height = 0;
 567     t->number_of_power_cords = 0;
 568     t->contained_element_count = 0;
 569     t->contained_element_record_length = 0;
 570     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 571
 572     SMBIOS_BUILD_TABLE_POST;
 573 }
 574
 575 static void smbios_build_type_4_table(MachineState *ms, unsigned instance)
 576 {
 577     char sock_str[128];
 578
 579     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 580
 581     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 582     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 583     t->processor_type = 0x03; /* CPU */
 584     t->processor_family = 0x01; /* Other */
 585     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 586     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 587     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 588     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 589     t->voltage = 0;
 590     t->external_clock = cpu_to_le16(0); /* Unknown */
 591     /* SVVP requires max_speed and current_speed to not be unknown. */
 592     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 593     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 594     t->status = 0x41; /* Socket populated, CPU enabled */
 595     t->processor_upgrade = 0x01; /* Other */
 596     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 597     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 598     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 599     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 600     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 601     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 602     t->core_count = t->core_enabled = ms->smp.cores;
 603     t->thread_count = ms->smp.threads;
 604     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 605     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 606
 607     SMBIOS_BUILD_TABLE_POST;
 608     smbios_type4_count++;
 609 }
 610
 611 static void smbios_build_type_11_table(void)
 612 {
 613     char count_str[128];
 614     size_t i;
 615
 616     if (type11.nvalues == 0) {
 617         return;
 618     }
 619
 620     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 621
 622     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 623     t->count = type11.nvalues;
 624
 625     for (i = 0; i < type11.nvalues; i++) {
 626         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 627     }
 628
 629     SMBIOS_BUILD_TABLE_POST;
 630 }
 631
 632 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 633
 634 static void smbios_build_type_16_table(unsigned dimm_cnt)
 635 {
 636     uint64_t size_kb;
 637
 638     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 639
 640     t->location = 0x01; /* Other */
 641     t->use = 0x03; /* System memory */
 642     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 643     size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
 644     if (size_kb < MAX_T16_STD_SZ) {
 645         t->maximum_capacity = cpu_to_le32(size_kb);
 646         t->extended_maximum_capacity = cpu_to_le64(0);
 647     } else {
 648         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 649         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 650     }
 651     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 652     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 653
 654     SMBIOS_BUILD_TABLE_POST;
 655 }
 656
 657 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 658 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 659
 660 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 661 {
 662     char loc_str[128];
 663     uint64_t size_mb;
 664
 665     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 666
 667     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 668     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 669     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 670     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 671     size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
 672     if (size_mb < MAX_T17_STD_SZ) {
 673         t->size = cpu_to_le16(size_mb);
 674         t->extended_size = cpu_to_le32(0);
 675     } else {
 676         assert(size_mb < MAX_T17_EXT_SZ);
 677         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 678         t->extended_size = cpu_to_le32(size_mb);
 679     }
 680     t->form_factor = 0x09; /* DIMM */
 681     t->device_set = 0; /* Not in a set */
 682     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 683     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 684     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 685     t->memory_type = 0x07; /* RAM */
 686     t->type_detail = cpu_to_le16(0x02); /* Other */
 687     t->speed = cpu_to_le16(type17.speed);
 688     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 689     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 690     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 691     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 692     t->attributes = 0; /* Unknown */
 693     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 694     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 695     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 696     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 697
 698     SMBIOS_BUILD_TABLE_POST;
 699 }
 700
 701 static void smbios_build_type_19_table(unsigned instance,
 702                                        uint64_t start, uint64_t size)
 703 {
 704     uint64_t end, start_kb, end_kb;
 705
 706     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 707
 708     end = start + size - 1;
 709     assert(end > start);
 710     start_kb = start / KiB;
 711     end_kb = end / KiB;
 712     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 713         t->starting_address = cpu_to_le32(start_kb);
 714         t->ending_address = cpu_to_le32(end_kb);
 715         t->extended_starting_address =
 716             t->extended_ending_address = cpu_to_le64(0);
 717     } else {
 718         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 719         t->extended_starting_address = cpu_to_le64(start);
 720         t->extended_ending_address = cpu_to_le64(end);
 721     }
 722     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 723     t->partition_width = 1; /* One device per row */
 724
 725     SMBIOS_BUILD_TABLE_POST;
 726 }
 727
 728 static void smbios_build_type_32_table(void)
 729 {
 730     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 731
 732     memset(t->reserved, 0, 6);
 733     t->boot_status = 0; /* No errors detected */
 734
 735     SMBIOS_BUILD_TABLE_POST;
 736 }
 737
 738 static void smbios_build_type_127_table(void)
 739 {
 740     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 741     SMBIOS_BUILD_TABLE_POST;
 742 }
 743
 744 void smbios_set_cpuid(uint32_t version, uint32_t features)
 745 {
 746     smbios_cpuid_version = version;
 747     smbios_cpuid_features = features;
 748 }
 749
 750 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 751     if (!field) {                                                         \
 752         field = value;                                                    \
 753     }
 754
 755 void smbios_set_defaults(const char *manufacturer, const char *product,
 756                          const char *version, bool legacy_mode,
 757                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 758 {
 759     smbios_have_defaults = true;
 760     smbios_legacy = legacy_mode;
 761     smbios_uuid_encoded = uuid_encoded;
 762     smbios_ep_type = ep_type;
 763
 764     /* drop unwanted version of command-line file blob(s) */
 765     if (smbios_legacy) {
 766         g_free(smbios_tables);
 767         /* in legacy mode, also complain if fields were given for types > 1 */
 768         if (find_next_bit(have_fields_bitmap,
 769                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 770             error_report("can't process fields for smbios "
 771                          "types > 1 on machine versions < 2.1!");
 772             exit(1);
 773         }
 774     } else {
 775         g_free(smbios_entries);
 776     }
 777
 778     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 779     SMBIOS_SET_DEFAULT(type1.product, product);
 780     SMBIOS_SET_DEFAULT(type1.version, version);
 781     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 782     SMBIOS_SET_DEFAULT(type2.product, product);
 783     SMBIOS_SET_DEFAULT(type2.version, version);
 784     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 785     SMBIOS_SET_DEFAULT(type3.version, version);
 786     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 787     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 788     SMBIOS_SET_DEFAULT(type4.version, version);
 789     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 790     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 791 }
 792
 793 static void smbios_entry_point_setup(void)
 794 {
 795     switch (smbios_ep_type) {
 796     case SMBIOS_ENTRY_POINT_21:
 797         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 798         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 799         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 800         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 801         memset(ep.ep21.formatted_area, 0, 5);
 802
 803         /* compliant with smbios spec v2.8 */
 804         ep.ep21.smbios_major_version = 2;
 805         ep.ep21.smbios_minor_version = 8;
 806         ep.ep21.smbios_bcd_revision = 0x28;
 807
 808         /* set during table construction, but BIOS may override: */
 809         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 810         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 811         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 812
 813         /* BIOS must recalculate */
 814         ep.ep21.checksum = 0;
 815         ep.ep21.intermediate_checksum = 0;
 816         ep.ep21.structure_table_address = cpu_to_le32(0);
 817
 818         break;
 819     case SMBIOS_ENTRY_POINT_30:
 820         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 821         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 822         ep.ep30.entry_point_revision = 1;
 823         ep.ep30.reserved = 0;
 824
 825         /* compliant with smbios spec 3.0 */
 826         ep.ep30.smbios_major_version = 3;
 827         ep.ep30.smbios_minor_version = 0;
 828         ep.ep30.smbios_doc_rev = 0;
 829
 830         /* set during table construct, but BIOS might override */
 831         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 832
 833         /* BIOS must recalculate */
 834         ep.ep30.checksum = 0;
 835         ep.ep30.structure_table_address = cpu_to_le64(0);
 836
 837         break;
 838     default:
 839         abort();
 840         break;
 841     }
 842 }
 843
 844 void smbios_get_tables(MachineState *ms,
 845                        const struct smbios_phys_mem_area *mem_array,
 846                        const unsigned int mem_array_size,
 847                        uint8_t **tables, size_t *tables_len,
 848                        uint8_t **anchor, size_t *anchor_len)
 849 {
 850     unsigned i, dimm_cnt;
 851
 852     if (smbios_legacy) {
 853         *tables = *anchor = NULL;
 854         *tables_len = *anchor_len = 0;
 855         return;
 856     }
 857
 858     if (!smbios_immutable) {
 859         smbios_build_type_0_table();
 860         smbios_build_type_1_table();
 861         smbios_build_type_2_table();
 862         smbios_build_type_3_table();
 863
 864         smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus,
 865                                           ms->smp.cores * ms->smp.threads);
 866         assert(smbios_smp_sockets >= 1);
 867
 868         for (i = 0; i < smbios_smp_sockets; i++) {
 869             smbios_build_type_4_table(ms, i);
 870         }
 871
 872         smbios_build_type_11_table();
 873
 874 #define MAX_DIMM_SZ (16 * GiB)
 875 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 876                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 877
 878         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 879
 880         smbios_build_type_16_table(dimm_cnt);
 881
 882         for (i = 0; i < dimm_cnt; i++) {
 883             smbios_build_type_17_table(i, GET_DIMM_SZ);
 884         }
 885
 886         for (i = 0; i < mem_array_size; i++) {
 887             smbios_build_type_19_table(i, mem_array[i].address,
 888                                        mem_array[i].length);
 889         }
 890
 891         smbios_build_type_32_table();
 892         smbios_build_type_38_table();
 893         smbios_build_type_127_table();
 894
 895         smbios_validate_table(ms);
 896         smbios_entry_point_setup();
 897         smbios_immutable = true;
 898     }
 899
 900     /* return tables blob and entry point (anchor), and their sizes */
 901     *tables = smbios_tables;
 902     *tables_len = smbios_tables_len;
 903     *anchor = (uint8_t *)&ep;
 904
 905     /* calculate length based on anchor string */
 906     if (!strncmp((char *)&ep, "_SM_", 4)) {
 907         *anchor_len = sizeof(struct smbios_21_entry_point);
 908     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 909         *anchor_len = sizeof(struct smbios_30_entry_point);
 910     } else {
 911         abort();
 912     }
 913 }
 914
 915 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 916 {
 917     const char *val = qemu_opt_get(opts, name);
 918
 919     if (val) {
 920         *dest = val;
 921     }
 922 }
 923
 924
 925 struct opt_list {
 926     const char *name;
 927     size_t *ndest;
 928     const char ***dest;
 929 };
 930
 931 static int save_opt_one(void *opaque,
 932                         const char *name, const char *value,
 933                         Error **errp)
 934 {
 935     struct opt_list *opt = opaque;
 936
 937     if (!g_str_equal(name, opt->name)) {
 938         return 0;
 939     }
 940
 941     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 942     (*opt->dest)[*opt->ndest] = value;
 943     (*opt->ndest)++;
 944     return 0;
 945 }
 946
 947 static void save_opt_list(size_t *ndest, const char ***dest,
 948                           QemuOpts *opts, const char *name)
 949 {
 950     struct opt_list opt = {
 951         name, ndest, dest,
 952     };
 953     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 954 }
 955
 956 void smbios_entry_add(QemuOpts *opts, Error **errp)
 957 {
 958     Error *err = NULL;
 959     const char *val;
 960
 961     assert(!smbios_immutable);
 962
 963     val = qemu_opt_get(opts, "file");
 964     if (val) {
 965         struct smbios_structure_header *header;
 966         int size;
 967         struct smbios_table *table; /* legacy mode only */
 968
 969         qemu_opts_validate(opts, qemu_smbios_file_opts, &err);
 970         if (err) {
 971             error_propagate(errp, err);
 972             return;
 973         }
 974
 975         size = get_image_size(val);
 976         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 977             error_setg(errp, "Cannot read SMBIOS file %s", val);
 978             return;
 979         }
 980
 981         /*
 982          * NOTE: standard double '\0' terminator expected, per smbios spec.
 983          * (except in legacy mode, where the second '\0' is implicit and
 984          *  will be inserted by the BIOS).
 985          */
 986         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 987         header = (struct smbios_structure_header *)(smbios_tables +
 988                                                     smbios_tables_len);
 989
 990         if (load_image_size(val, (uint8_t *)header, size) != size) {
 991             error_setg(errp, "Failed to load SMBIOS file %s", val);
 992             return;
 993         }
 994
 995         if (test_bit(header->type, have_fields_bitmap)) {
 996             error_setg(errp,
 997                        "can't load type %d struct, fields already specified!",
 998                        header->type);
 999             return;
1000         }
1001         set_bit(header->type, have_binfile_bitmap);
1002
1003         if (header->type == 4) {
1004             smbios_type4_count++;
1005         }
1006
1007         smbios_tables_len += size;
1008         if (size > smbios_table_max) {
1009             smbios_table_max = size;
1010         }
1011         smbios_table_cnt++;
1012
1013         /* add a copy of the newly loaded blob to legacy smbios_entries */
1014         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1015          *       yet know which mode (legacy vs. aggregate-table) will be
1016          *       required. We therefore add the binary blob to both legacy
1017          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1018          *       delete the one we don't need from smbios_set_defaults(),
1019          *       once we know which machine version has been requested.
1020          */
1021         if (!smbios_entries) {
1022             smbios_entries_len = sizeof(uint16_t);
1023             smbios_entries = g_malloc0(smbios_entries_len);
1024         }
1025         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1026                                                    size + sizeof(*table));
1027         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1028         table->header.type = SMBIOS_TABLE_ENTRY;
1029         table->header.length = cpu_to_le16(sizeof(*table) + size);
1030         memcpy(table->data, header, size);
1031         smbios_entries_len += sizeof(*table) + size;
1032         (*(uint16_t *)smbios_entries) =
1033                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1034         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1035
1036         return;
1037     }
1038
1039     val = qemu_opt_get(opts, "type");
1040     if (val) {
1041         unsigned long type = strtoul(val, NULL, 0);
1042
1043         if (type > SMBIOS_MAX_TYPE) {
1044             error_setg(errp, "out of range!");
1045             return;
1046         }
1047
1048         if (test_bit(type, have_binfile_bitmap)) {
1049             error_setg(errp, "can't add fields, binary file already loaded!");
1050             return;
1051         }
1052         set_bit(type, have_fields_bitmap);
1053
1054         switch (type) {
1055         case 0:
1056             qemu_opts_validate(opts, qemu_smbios_type0_opts, &err);
1057             if (err) {
1058                 error_propagate(errp, err);
1059                 return;
1060             }
1061             save_opt(&type0.vendor, opts, "vendor");
1062             save_opt(&type0.version, opts, "version");
1063             save_opt(&type0.date, opts, "date");
1064             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1065
1066             val = qemu_opt_get(opts, "release");
1067             if (val) {
1068                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1069                     error_setg(errp, "Invalid release");
1070                     return;
1071                 }
1072                 type0.have_major_minor = true;
1073             }
1074             return;
1075         case 1:
1076             qemu_opts_validate(opts, qemu_smbios_type1_opts, &err);
1077             if (err) {
1078                 error_propagate(errp, err);
1079                 return;
1080             }
1081             save_opt(&type1.manufacturer, opts, "manufacturer");
1082             save_opt(&type1.product, opts, "product");
1083             save_opt(&type1.version, opts, "version");
1084             save_opt(&type1.serial, opts, "serial");
1085             save_opt(&type1.sku, opts, "sku");
1086             save_opt(&type1.family, opts, "family");
1087
1088             val = qemu_opt_get(opts, "uuid");
1089             if (val) {
1090                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1091                     error_setg(errp, "Invalid UUID");
1092                     return;
1093                 }
1094                 qemu_uuid_set = true;
1095             }
1096             return;
1097         case 2:
1098             qemu_opts_validate(opts, qemu_smbios_type2_opts, &err);
1099             if (err) {
1100                 error_propagate(errp, err);
1101                 return;
1102             }
1103             save_opt(&type2.manufacturer, opts, "manufacturer");
1104             save_opt(&type2.product, opts, "product");
1105             save_opt(&type2.version, opts, "version");
1106             save_opt(&type2.serial, opts, "serial");
1107             save_opt(&type2.asset, opts, "asset");
1108             save_opt(&type2.location, opts, "location");
1109             return;
1110         case 3:
1111             qemu_opts_validate(opts, qemu_smbios_type3_opts, &err);
1112             if (err) {
1113                 error_propagate(errp, err);
1114                 return;
1115             }
1116             save_opt(&type3.manufacturer, opts, "manufacturer");
1117             save_opt(&type3.version, opts, "version");
1118             save_opt(&type3.serial, opts, "serial");
1119             save_opt(&type3.asset, opts, "asset");
1120             save_opt(&type3.sku, opts, "sku");
1121             return;
1122         case 4:
1123             qemu_opts_validate(opts, qemu_smbios_type4_opts, &err);
1124             if (err) {
1125                 error_propagate(errp, err);
1126                 return;
1127             }
1128             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1129             save_opt(&type4.manufacturer, opts, "manufacturer");
1130             save_opt(&type4.version, opts, "version");
1131             save_opt(&type4.serial, opts, "serial");
1132             save_opt(&type4.asset, opts, "asset");
1133             save_opt(&type4.part, opts, "part");
1134             return;
1135         case 11:
1136             qemu_opts_validate(opts, qemu_smbios_type11_opts, &err);
1137             if (err) {
1138                 error_propagate(errp, err);
1139                 return;
1140             }
1141             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1142             return;
1143         case 17:
1144             qemu_opts_validate(opts, qemu_smbios_type17_opts, &err);
1145             if (err) {
1146                 error_propagate(errp, err);
1147                 return;
1148             }
1149             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1150             save_opt(&type17.bank, opts, "bank");
1151             save_opt(&type17.manufacturer, opts, "manufacturer");
1152             save_opt(&type17.serial, opts, "serial");
1153             save_opt(&type17.asset, opts, "asset");
1154             save_opt(&type17.part, opts, "part");
1155             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1156             return;
1157         default:
1158             error_setg(errp,
1159                        "Don't know how to build fields for SMBIOS type %ld",
1160                        type);
1161             return;
1162         }
1163     }
1164
1165     error_setg(errp, "Must specify type= or file=");
1166 }