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 "qapi/error.h"
  20 #include "qemu/config-file.h"
  21 #include "qemu/error-report.h"
  22 #include "sysemu/sysemu.h"
  23 #include "qemu/uuid.h"
  24 #include "sysemu/cpus.h"
  25 #include "hw/smbios/smbios.h"
  26 #include "hw/loader.h"
  27 #include "exec/cpu-common.h"
  28 #include "smbios_build.h"
  29 #include "hw/smbios/ipmi.h"
  30
  31 /* legacy structures and constants for <= 2.0 machines */
  32 struct smbios_header {
  33     uint16_t length;
  34     uint8_t type;
  35 } QEMU_PACKED;
  36
  37 struct smbios_field {
  38     struct smbios_header header;
  39     uint8_t type;
  40     uint16_t offset;
  41     uint8_t data[];
  42 } QEMU_PACKED;
  43
  44 struct smbios_table {
  45     struct smbios_header header;
  46     uint8_t data[];
  47 } QEMU_PACKED;
  48
  49 #define SMBIOS_FIELD_ENTRY 0
  50 #define SMBIOS_TABLE_ENTRY 1
  51
  52 static uint8_t *smbios_entries;
  53 static size_t smbios_entries_len;
  54 static bool smbios_legacy = true;
  55 static bool smbios_uuid_encoded = true;
  56 /* end: legacy structures & constants for <= 2.0 machines */
  57
  58
  59 uint8_t *smbios_tables;
  60 size_t smbios_tables_len;
  61 unsigned smbios_table_max;
  62 unsigned smbios_table_cnt;
  63 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
  64
  65 static SmbiosEntryPoint ep;
  66
  67 static int smbios_type4_count = 0;
  68 static bool smbios_immutable;
  69 static bool smbios_have_defaults;
  70 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
  71
  72 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
  73 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
  74
  75 static struct {
  76     const char *vendor, *version, *date;
  77     bool have_major_minor, uefi;
  78     uint8_t major, minor;
  79 } type0;
  80
  81 static struct {
  82     const char *manufacturer, *product, *version, *serial, *sku, *family;
  83     /* uuid is in qemu_uuid */
  84 } type1;
  85
  86 static struct {
  87     const char *manufacturer, *product, *version, *serial, *asset, *location;
  88 } type2;
  89
  90 static struct {
  91     const char *manufacturer, *version, *serial, *asset, *sku;
  92 } type3;
  93
  94 static struct {
  95     const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
  96 } type4;
  97
  98 static struct {
  99     size_t nvalues;
 100     const char **values;
 101 } type11;
 102
 103 static struct {
 104     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
 105     uint16_t speed;
 106 } type17;
 107
 108 static QemuOptsList qemu_smbios_opts = {
 109     .name = "smbios",
 110     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 111     .desc = {
 112         /*
 113          * no elements => accept any params
 114          * validation will happen later
 115          */
 116         { /* end of list */ }
 117     }
 118 };
 119
 120 static const QemuOptDesc qemu_smbios_file_opts[] = {
 121     {
 122         .name = "file",
 123         .type = QEMU_OPT_STRING,
 124         .help = "binary file containing an SMBIOS element",
 125     },
 126     { /* end of list */ }
 127 };
 128
 129 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 130     {
 131         .name = "type",
 132         .type = QEMU_OPT_NUMBER,
 133         .help = "SMBIOS element type",
 134     },{
 135         .name = "vendor",
 136         .type = QEMU_OPT_STRING,
 137         .help = "vendor name",
 138     },{
 139         .name = "version",
 140         .type = QEMU_OPT_STRING,
 141         .help = "version number",
 142     },{
 143         .name = "date",
 144         .type = QEMU_OPT_STRING,
 145         .help = "release date",
 146     },{
 147         .name = "release",
 148         .type = QEMU_OPT_STRING,
 149         .help = "revision number",
 150     },{
 151         .name = "uefi",
 152         .type = QEMU_OPT_BOOL,
 153         .help = "uefi support",
 154     },
 155     { /* end of list */ }
 156 };
 157
 158 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 159     {
 160         .name = "type",
 161         .type = QEMU_OPT_NUMBER,
 162         .help = "SMBIOS element type",
 163     },{
 164         .name = "manufacturer",
 165         .type = QEMU_OPT_STRING,
 166         .help = "manufacturer name",
 167     },{
 168         .name = "product",
 169         .type = QEMU_OPT_STRING,
 170         .help = "product name",
 171     },{
 172         .name = "version",
 173         .type = QEMU_OPT_STRING,
 174         .help = "version number",
 175     },{
 176         .name = "serial",
 177         .type = QEMU_OPT_STRING,
 178         .help = "serial number",
 179     },{
 180         .name = "uuid",
 181         .type = QEMU_OPT_STRING,
 182         .help = "UUID",
 183     },{
 184         .name = "sku",
 185         .type = QEMU_OPT_STRING,
 186         .help = "SKU number",
 187     },{
 188         .name = "family",
 189         .type = QEMU_OPT_STRING,
 190         .help = "family name",
 191     },
 192     { /* end of list */ }
 193 };
 194
 195 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 196     {
 197         .name = "type",
 198         .type = QEMU_OPT_NUMBER,
 199         .help = "SMBIOS element type",
 200     },{
 201         .name = "manufacturer",
 202         .type = QEMU_OPT_STRING,
 203         .help = "manufacturer name",
 204     },{
 205         .name = "product",
 206         .type = QEMU_OPT_STRING,
 207         .help = "product name",
 208     },{
 209         .name = "version",
 210         .type = QEMU_OPT_STRING,
 211         .help = "version number",
 212     },{
 213         .name = "serial",
 214         .type = QEMU_OPT_STRING,
 215         .help = "serial number",
 216     },{
 217         .name = "asset",
 218         .type = QEMU_OPT_STRING,
 219         .help = "asset tag number",
 220     },{
 221         .name = "location",
 222         .type = QEMU_OPT_STRING,
 223         .help = "location in chassis",
 224     },
 225     { /* end of list */ }
 226 };
 227
 228 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 229     {
 230         .name = "type",
 231         .type = QEMU_OPT_NUMBER,
 232         .help = "SMBIOS element type",
 233     },{
 234         .name = "manufacturer",
 235         .type = QEMU_OPT_STRING,
 236         .help = "manufacturer name",
 237     },{
 238         .name = "version",
 239         .type = QEMU_OPT_STRING,
 240         .help = "version number",
 241     },{
 242         .name = "serial",
 243         .type = QEMU_OPT_STRING,
 244         .help = "serial number",
 245     },{
 246         .name = "asset",
 247         .type = QEMU_OPT_STRING,
 248         .help = "asset tag number",
 249     },{
 250         .name = "sku",
 251         .type = QEMU_OPT_STRING,
 252         .help = "SKU number",
 253     },
 254     { /* end of list */ }
 255 };
 256
 257 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 258     {
 259         .name = "type",
 260         .type = QEMU_OPT_NUMBER,
 261         .help = "SMBIOS element type",
 262     },{
 263         .name = "sock_pfx",
 264         .type = QEMU_OPT_STRING,
 265         .help = "socket designation string prefix",
 266     },{
 267         .name = "manufacturer",
 268         .type = QEMU_OPT_STRING,
 269         .help = "manufacturer name",
 270     },{
 271         .name = "version",
 272         .type = QEMU_OPT_STRING,
 273         .help = "version number",
 274     },{
 275         .name = "serial",
 276         .type = QEMU_OPT_STRING,
 277         .help = "serial number",
 278     },{
 279         .name = "asset",
 280         .type = QEMU_OPT_STRING,
 281         .help = "asset tag number",
 282     },{
 283         .name = "part",
 284         .type = QEMU_OPT_STRING,
 285         .help = "part number",
 286     },
 287     { /* end of list */ }
 288 };
 289
 290 static const QemuOptDesc qemu_smbios_type11_opts[] = {
 291     {
 292         .name = "value",
 293         .type = QEMU_OPT_STRING,
 294         .help = "OEM string data",
 295     },
 296 };
 297
 298 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 299     {
 300         .name = "type",
 301         .type = QEMU_OPT_NUMBER,
 302         .help = "SMBIOS element type",
 303     },{
 304         .name = "loc_pfx",
 305         .type = QEMU_OPT_STRING,
 306         .help = "device locator string prefix",
 307     },{
 308         .name = "bank",
 309         .type = QEMU_OPT_STRING,
 310         .help = "bank locator string",
 311     },{
 312         .name = "manufacturer",
 313         .type = QEMU_OPT_STRING,
 314         .help = "manufacturer name",
 315     },{
 316         .name = "serial",
 317         .type = QEMU_OPT_STRING,
 318         .help = "serial number",
 319     },{
 320         .name = "asset",
 321         .type = QEMU_OPT_STRING,
 322         .help = "asset tag number",
 323     },{
 324         .name = "part",
 325         .type = QEMU_OPT_STRING,
 326         .help = "part number",
 327     },{
 328         .name = "speed",
 329         .type = QEMU_OPT_NUMBER,
 330         .help = "maximum capable speed",
 331     },
 332     { /* end of list */ }
 333 };
 334
 335 static void smbios_register_config(void)
 336 {
 337     qemu_add_opts(&qemu_smbios_opts);
 338 }
 339
 340 opts_init(smbios_register_config);
 341
 342 static void smbios_validate_table(void)
 343 {
 344     uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets;
 345
 346     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 347         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 348                      expect_t4_count, smbios_type4_count);
 349         exit(1);
 350     }
 351 }
 352
 353
 354 /* legacy setup functions for <= 2.0 machines */
 355 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 356 {
 357     struct smbios_field *field;
 358
 359     if (!smbios_entries) {
 360         smbios_entries_len = sizeof(uint16_t);
 361         smbios_entries = g_malloc0(smbios_entries_len);
 362     }
 363     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 364                                                   sizeof(*field) + len);
 365     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 366     field->header.type = SMBIOS_FIELD_ENTRY;
 367     field->header.length = cpu_to_le16(sizeof(*field) + len);
 368
 369     field->type = type;
 370     field->offset = cpu_to_le16(offset);
 371     memcpy(field->data, data, len);
 372
 373     smbios_entries_len += sizeof(*field) + len;
 374     (*(uint16_t *)smbios_entries) =
 375             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 376 }
 377
 378 static void smbios_maybe_add_str(int type, int offset, const char *data)
 379 {
 380     if (data) {
 381         smbios_add_field(type, offset, data, strlen(data) + 1);
 382     }
 383 }
 384
 385 static void smbios_build_type_0_fields(void)
 386 {
 387     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 388                          type0.vendor);
 389     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 390                          type0.version);
 391     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 392                                      bios_release_date_str),
 393                          type0.date);
 394     if (type0.have_major_minor) {
 395         smbios_add_field(0, offsetof(struct smbios_type_0,
 396                                      system_bios_major_release),
 397                          &type0.major, 1);
 398         smbios_add_field(0, offsetof(struct smbios_type_0,
 399                                      system_bios_minor_release),
 400                          &type0.minor, 1);
 401     }
 402 }
 403
 404 static void smbios_build_type_1_fields(void)
 405 {
 406     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 407                          type1.manufacturer);
 408     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 409                          type1.product);
 410     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 411                          type1.version);
 412     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 413                          type1.serial);
 414     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 415                          type1.sku);
 416     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 417                          type1.family);
 418     if (qemu_uuid_set) {
 419         /* We don't encode the UUID in the "wire format" here because this
 420          * function is for legacy mode and needs to keep the guest ABI, and
 421          * because we don't know what's the SMBIOS version advertised by the
 422          * BIOS.
 423          */
 424         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 425                          &qemu_uuid, 16);
 426     }
 427 }
 428
 429 uint8_t *smbios_get_table_legacy(size_t *length)
 430 {
 431     if (!smbios_legacy) {
 432         *length = 0;
 433         return NULL;
 434     }
 435
 436     if (!smbios_immutable) {
 437         smbios_build_type_0_fields();
 438         smbios_build_type_1_fields();
 439         smbios_validate_table();
 440         smbios_immutable = true;
 441     }
 442     *length = smbios_entries_len;
 443     return smbios_entries;
 444 }
 445 /* end: legacy setup functions for <= 2.0 machines */
 446
 447
 448 bool smbios_skip_table(uint8_t type, bool required_table)
 449 {
 450     if (test_bit(type, have_binfile_bitmap)) {
 451         return true; /* user provided their own binary blob(s) */
 452     }
 453     if (test_bit(type, have_fields_bitmap)) {
 454         return false; /* user provided fields via command line */
 455     }
 456     if (smbios_have_defaults && required_table) {
 457         return false; /* we're building tables, and this one's required */
 458     }
 459     return true;
 460 }
 461
 462 static void smbios_build_type_0_table(void)
 463 {
 464     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 465
 466     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 467     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 468
 469     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 470
 471     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 472
 473     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 474
 475     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 476     t->bios_characteristics_extension_bytes[0] = 0;
 477     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 478     if (type0.uefi) {
 479         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 480     }
 481
 482     if (type0.have_major_minor) {
 483         t->system_bios_major_release = type0.major;
 484         t->system_bios_minor_release = type0.minor;
 485     } else {
 486         t->system_bios_major_release = 0;
 487         t->system_bios_minor_release = 0;
 488     }
 489
 490     /* hardcoded in SeaBIOS */
 491     t->embedded_controller_major_release = 0xFF;
 492     t->embedded_controller_minor_release = 0xFF;
 493
 494     SMBIOS_BUILD_TABLE_POST;
 495 }
 496
 497 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 498  * format specified by SMBIOS version 2.6.
 499  */
 500 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 501 {
 502     memcpy(uuid, in, 16);
 503     if (smbios_uuid_encoded) {
 504         uuid->time_low = bswap32(uuid->time_low);
 505         uuid->time_mid = bswap16(uuid->time_mid);
 506         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 507     }
 508 }
 509
 510 static void smbios_build_type_1_table(void)
 511 {
 512     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 513
 514     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 515     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 516     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 517     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 518     if (qemu_uuid_set) {
 519         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 520     } else {
 521         memset(&t->uuid, 0, 16);
 522     }
 523     t->wake_up_type = 0x06; /* power switch */
 524     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 525     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 526
 527     SMBIOS_BUILD_TABLE_POST;
 528 }
 529
 530 static void smbios_build_type_2_table(void)
 531 {
 532     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 533
 534     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 535     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 536     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 537     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 538     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 539     t->feature_flags = 0x01; /* Motherboard */
 540     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 541     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 542     t->board_type = 0x0A; /* Motherboard */
 543     t->contained_element_count = 0;
 544
 545     SMBIOS_BUILD_TABLE_POST;
 546 }
 547
 548 static void smbios_build_type_3_table(void)
 549 {
 550     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 551
 552     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 553     t->type = 0x01; /* Other */
 554     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 555     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 556     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 557     t->boot_up_state = 0x03; /* Safe */
 558     t->power_supply_state = 0x03; /* Safe */
 559     t->thermal_state = 0x03; /* Safe */
 560     t->security_status = 0x02; /* Unknown */
 561     t->oem_defined = cpu_to_le32(0);
 562     t->height = 0;
 563     t->number_of_power_cords = 0;
 564     t->contained_element_count = 0;
 565     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 566
 567     SMBIOS_BUILD_TABLE_POST;
 568 }
 569
 570 static void smbios_build_type_4_table(unsigned instance)
 571 {
 572     char sock_str[128];
 573
 574     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 575
 576     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 577     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 578     t->processor_type = 0x03; /* CPU */
 579     t->processor_family = 0x01; /* Other */
 580     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 581     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 582     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 583     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 584     t->voltage = 0;
 585     t->external_clock = cpu_to_le16(0); /* Unknown */
 586     /* SVVP requires max_speed and current_speed to not be unknown. */
 587     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 588     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 589     t->status = 0x41; /* Socket populated, CPU enabled */
 590     t->processor_upgrade = 0x01; /* Other */
 591     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 592     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 593     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 594     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 595     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 596     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 597     t->core_count = t->core_enabled = smp_cores;
 598     t->thread_count = smp_threads;
 599     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 600     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 601
 602     SMBIOS_BUILD_TABLE_POST;
 603     smbios_type4_count++;
 604 }
 605
 606 static void smbios_build_type_11_table(void)
 607 {
 608     char count_str[128];
 609     size_t i;
 610
 611     if (type11.nvalues == 0) {
 612         return;
 613     }
 614
 615     SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
 616
 617     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
 618     t->count = type11.nvalues;
 619
 620     for (i = 0; i < type11.nvalues; i++) {
 621         SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
 622     }
 623
 624     SMBIOS_BUILD_TABLE_POST;
 625 }
 626
 627 #define ONE_KB ((ram_addr_t)1 << 10)
 628 #define ONE_MB ((ram_addr_t)1 << 20)
 629 #define ONE_GB ((ram_addr_t)1 << 30)
 630
 631 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 632
 633 static void smbios_build_type_16_table(unsigned dimm_cnt)
 634 {
 635     uint64_t size_kb;
 636
 637     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 638
 639     t->location = 0x01; /* Other */
 640     t->use = 0x03; /* System memory */
 641     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 642     size_kb = QEMU_ALIGN_UP(ram_size, ONE_KB) / ONE_KB;
 643     if (size_kb < MAX_T16_STD_SZ) {
 644         t->maximum_capacity = cpu_to_le32(size_kb);
 645         t->extended_maximum_capacity = cpu_to_le64(0);
 646     } else {
 647         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 648         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 649     }
 650     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 651     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 652
 653     SMBIOS_BUILD_TABLE_POST;
 654 }
 655
 656 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 657 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 658
 659 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 660 {
 661     char loc_str[128];
 662     uint64_t size_mb;
 663
 664     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 665
 666     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 667     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 668     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 669     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 670     size_mb = QEMU_ALIGN_UP(size, ONE_MB) / ONE_MB;
 671     if (size_mb < MAX_T17_STD_SZ) {
 672         t->size = cpu_to_le16(size_mb);
 673         t->extended_size = cpu_to_le32(0);
 674     } else {
 675         assert(size_mb < MAX_T17_EXT_SZ);
 676         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 677         t->extended_size = cpu_to_le32(size_mb);
 678     }
 679     t->form_factor = 0x09; /* DIMM */
 680     t->device_set = 0; /* Not in a set */
 681     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 682     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 683     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 684     t->memory_type = 0x07; /* RAM */
 685     t->type_detail = cpu_to_le16(0x02); /* Other */
 686     t->speed = cpu_to_le16(type17.speed);
 687     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 688     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 689     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 690     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 691     t->attributes = 0; /* Unknown */
 692     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 693     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 694     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 695     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 696
 697     SMBIOS_BUILD_TABLE_POST;
 698 }
 699
 700 static void smbios_build_type_19_table(unsigned instance,
 701                                        uint64_t start, uint64_t size)
 702 {
 703     uint64_t end, start_kb, end_kb;
 704
 705     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 706
 707     end = start + size - 1;
 708     assert(end > start);
 709     start_kb = start / ONE_KB;
 710     end_kb = end / ONE_KB;
 711     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 712         t->starting_address = cpu_to_le32(start_kb);
 713         t->ending_address = cpu_to_le32(end_kb);
 714         t->extended_starting_address =
 715             t->extended_ending_address = cpu_to_le64(0);
 716     } else {
 717         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 718         t->extended_starting_address = cpu_to_le64(start);
 719         t->extended_ending_address = cpu_to_le64(end);
 720     }
 721     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 722     t->partition_width = 1; /* One device per row */
 723
 724     SMBIOS_BUILD_TABLE_POST;
 725 }
 726
 727 static void smbios_build_type_32_table(void)
 728 {
 729     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 730
 731     memset(t->reserved, 0, 6);
 732     t->boot_status = 0; /* No errors detected */
 733
 734     SMBIOS_BUILD_TABLE_POST;
 735 }
 736
 737 static void smbios_build_type_127_table(void)
 738 {
 739     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 740     SMBIOS_BUILD_TABLE_POST;
 741 }
 742
 743 void smbios_set_cpuid(uint32_t version, uint32_t features)
 744 {
 745     smbios_cpuid_version = version;
 746     smbios_cpuid_features = features;
 747 }
 748
 749 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 750     if (!field) {                                                         \
 751         field = value;                                                    \
 752     }
 753
 754 void smbios_set_defaults(const char *manufacturer, const char *product,
 755                          const char *version, bool legacy_mode,
 756                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 757 {
 758     smbios_have_defaults = true;
 759     smbios_legacy = legacy_mode;
 760     smbios_uuid_encoded = uuid_encoded;
 761     smbios_ep_type = ep_type;
 762
 763     /* drop unwanted version of command-line file blob(s) */
 764     if (smbios_legacy) {
 765         g_free(smbios_tables);
 766         /* in legacy mode, also complain if fields were given for types > 1 */
 767         if (find_next_bit(have_fields_bitmap,
 768                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 769             error_report("can't process fields for smbios "
 770                          "types > 1 on machine versions < 2.1!");
 771             exit(1);
 772         }
 773     } else {
 774         g_free(smbios_entries);
 775     }
 776
 777     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 778     SMBIOS_SET_DEFAULT(type1.product, product);
 779     SMBIOS_SET_DEFAULT(type1.version, version);
 780     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 781     SMBIOS_SET_DEFAULT(type2.product, product);
 782     SMBIOS_SET_DEFAULT(type2.version, version);
 783     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 784     SMBIOS_SET_DEFAULT(type3.version, version);
 785     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 786     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 787     SMBIOS_SET_DEFAULT(type4.version, version);
 788     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 789     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 790 }
 791
 792 static void smbios_entry_point_setup(void)
 793 {
 794     switch (smbios_ep_type) {
 795     case SMBIOS_ENTRY_POINT_21:
 796         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 797         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 798         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 799         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 800         memset(ep.ep21.formatted_area, 0, 5);
 801
 802         /* compliant with smbios spec v2.8 */
 803         ep.ep21.smbios_major_version = 2;
 804         ep.ep21.smbios_minor_version = 8;
 805         ep.ep21.smbios_bcd_revision = 0x28;
 806
 807         /* set during table construction, but BIOS may override: */
 808         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 809         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 810         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 811
 812         /* BIOS must recalculate */
 813         ep.ep21.checksum = 0;
 814         ep.ep21.intermediate_checksum = 0;
 815         ep.ep21.structure_table_address = cpu_to_le32(0);
 816
 817         break;
 818     case SMBIOS_ENTRY_POINT_30:
 819         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 820         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 821         ep.ep30.entry_point_revision = 1;
 822         ep.ep30.reserved = 0;
 823
 824         /* compliant with smbios spec 3.0 */
 825         ep.ep30.smbios_major_version = 3;
 826         ep.ep30.smbios_minor_version = 0;
 827         ep.ep30.smbios_doc_rev = 0;
 828
 829         /* set during table construct, but BIOS might override */
 830         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 831
 832         /* BIOS must recalculate */
 833         ep.ep30.checksum = 0;
 834         ep.ep30.structure_table_address = cpu_to_le64(0);
 835
 836         break;
 837     default:
 838         abort();
 839         break;
 840     }
 841 }
 842
 843 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
 844                        const unsigned int mem_array_size,
 845                        uint8_t **tables, size_t *tables_len,
 846                        uint8_t **anchor, size_t *anchor_len)
 847 {
 848     unsigned i, dimm_cnt;
 849
 850     if (smbios_legacy) {
 851         *tables = *anchor = NULL;
 852         *tables_len = *anchor_len = 0;
 853         return;
 854     }
 855
 856     if (!smbios_immutable) {
 857         smbios_build_type_0_table();
 858         smbios_build_type_1_table();
 859         smbios_build_type_2_table();
 860         smbios_build_type_3_table();
 861
 862         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 863         assert(smbios_smp_sockets >= 1);
 864
 865         for (i = 0; i < smbios_smp_sockets; i++) {
 866             smbios_build_type_4_table(i);
 867         }
 868
 869         smbios_build_type_11_table();
 870
 871 #define MAX_DIMM_SZ (16ll * ONE_GB)
 872 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 873                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 874
 875         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 876
 877         smbios_build_type_16_table(dimm_cnt);
 878
 879         for (i = 0; i < dimm_cnt; i++) {
 880             smbios_build_type_17_table(i, GET_DIMM_SZ);
 881         }
 882
 883         for (i = 0; i < mem_array_size; i++) {
 884             smbios_build_type_19_table(i, mem_array[i].address,
 885                                        mem_array[i].length);
 886         }
 887
 888         smbios_build_type_32_table();
 889         smbios_build_type_38_table();
 890         smbios_build_type_127_table();
 891
 892         smbios_validate_table();
 893         smbios_entry_point_setup();
 894         smbios_immutable = true;
 895     }
 896
 897     /* return tables blob and entry point (anchor), and their sizes */
 898     *tables = smbios_tables;
 899     *tables_len = smbios_tables_len;
 900     *anchor = (uint8_t *)&ep;
 901
 902     /* calculate length based on anchor string */
 903     if (!strncmp((char *)&ep, "_SM_", 4)) {
 904         *anchor_len = sizeof(struct smbios_21_entry_point);
 905     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 906         *anchor_len = sizeof(struct smbios_30_entry_point);
 907     } else {
 908         abort();
 909     }
 910 }
 911
 912 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 913 {
 914     const char *val = qemu_opt_get(opts, name);
 915
 916     if (val) {
 917         *dest = val;
 918     }
 919 }
 920
 921
 922 struct opt_list {
 923     const char *name;
 924     size_t *ndest;
 925     const char ***dest;
 926 };
 927
 928 static int save_opt_one(void *opaque,
 929                         const char *name, const char *value,
 930                         Error **errp)
 931 {
 932     struct opt_list *opt = opaque;
 933
 934     if (!g_str_equal(name, opt->name)) {
 935         return 0;
 936     }
 937
 938     *opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
 939     (*opt->dest)[*opt->ndest] = value;
 940     (*opt->ndest)++;
 941     return 0;
 942 }
 943
 944 static void save_opt_list(size_t *ndest, const char ***dest,
 945                           QemuOpts *opts, const char *name)
 946 {
 947     struct opt_list opt = {
 948         name, ndest, dest,
 949     };
 950     qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
 951 }
 952
 953 void smbios_entry_add(QemuOpts *opts, Error **errp)
 954 {
 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, &error_fatal);
 966
 967         size = get_image_size(val);
 968         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 969             error_report("Cannot read SMBIOS file %s", val);
 970             exit(1);
 971         }
 972
 973         /*
 974          * NOTE: standard double '\0' terminator expected, per smbios spec.
 975          * (except in legacy mode, where the second '\0' is implicit and
 976          *  will be inserted by the BIOS).
 977          */
 978         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 979         header = (struct smbios_structure_header *)(smbios_tables +
 980                                                     smbios_tables_len);
 981
 982         if (load_image(val, (uint8_t *)header) != size) {
 983             error_report("Failed to load SMBIOS file %s", val);
 984             exit(1);
 985         }
 986
 987         if (test_bit(header->type, have_fields_bitmap)) {
 988             error_report("can't load type %d struct, fields already specified!",
 989                          header->type);
 990             exit(1);
 991         }
 992         set_bit(header->type, have_binfile_bitmap);
 993
 994         if (header->type == 4) {
 995             smbios_type4_count++;
 996         }
 997
 998         smbios_tables_len += size;
 999         if (size > smbios_table_max) {
1000             smbios_table_max = size;
1001         }
1002         smbios_table_cnt++;
1003
1004         /* add a copy of the newly loaded blob to legacy smbios_entries */
1005         /* NOTE: This code runs before smbios_set_defaults(), so we don't
1006          *       yet know which mode (legacy vs. aggregate-table) will be
1007          *       required. We therefore add the binary blob to both legacy
1008          *       (smbios_entries) and aggregate (smbios_tables) tables, and
1009          *       delete the one we don't need from smbios_set_defaults(),
1010          *       once we know which machine version has been requested.
1011          */
1012         if (!smbios_entries) {
1013             smbios_entries_len = sizeof(uint16_t);
1014             smbios_entries = g_malloc0(smbios_entries_len);
1015         }
1016         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
1017                                                    size + sizeof(*table));
1018         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
1019         table->header.type = SMBIOS_TABLE_ENTRY;
1020         table->header.length = cpu_to_le16(sizeof(*table) + size);
1021         memcpy(table->data, header, size);
1022         smbios_entries_len += sizeof(*table) + size;
1023         (*(uint16_t *)smbios_entries) =
1024                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
1025         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
1026
1027         return;
1028     }
1029
1030     val = qemu_opt_get(opts, "type");
1031     if (val) {
1032         unsigned long type = strtoul(val, NULL, 0);
1033
1034         if (type > SMBIOS_MAX_TYPE) {
1035             error_report("out of range!");
1036             exit(1);
1037         }
1038
1039         if (test_bit(type, have_binfile_bitmap)) {
1040             error_report("can't add fields, binary file already loaded!");
1041             exit(1);
1042         }
1043         set_bit(type, have_fields_bitmap);
1044
1045         switch (type) {
1046         case 0:
1047             qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal);
1048             save_opt(&type0.vendor, opts, "vendor");
1049             save_opt(&type0.version, opts, "version");
1050             save_opt(&type0.date, opts, "date");
1051             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
1052
1053             val = qemu_opt_get(opts, "release");
1054             if (val) {
1055                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
1056                     error_report("Invalid release");
1057                     exit(1);
1058                 }
1059                 type0.have_major_minor = true;
1060             }
1061             return;
1062         case 1:
1063             qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal);
1064             save_opt(&type1.manufacturer, opts, "manufacturer");
1065             save_opt(&type1.product, opts, "product");
1066             save_opt(&type1.version, opts, "version");
1067             save_opt(&type1.serial, opts, "serial");
1068             save_opt(&type1.sku, opts, "sku");
1069             save_opt(&type1.family, opts, "family");
1070
1071             val = qemu_opt_get(opts, "uuid");
1072             if (val) {
1073                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1074                     error_report("Invalid UUID");
1075                     exit(1);
1076                 }
1077                 qemu_uuid_set = true;
1078             }
1079             return;
1080         case 2:
1081             qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal);
1082             save_opt(&type2.manufacturer, opts, "manufacturer");
1083             save_opt(&type2.product, opts, "product");
1084             save_opt(&type2.version, opts, "version");
1085             save_opt(&type2.serial, opts, "serial");
1086             save_opt(&type2.asset, opts, "asset");
1087             save_opt(&type2.location, opts, "location");
1088             return;
1089         case 3:
1090             qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal);
1091             save_opt(&type3.manufacturer, opts, "manufacturer");
1092             save_opt(&type3.version, opts, "version");
1093             save_opt(&type3.serial, opts, "serial");
1094             save_opt(&type3.asset, opts, "asset");
1095             save_opt(&type3.sku, opts, "sku");
1096             return;
1097         case 4:
1098             qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal);
1099             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1100             save_opt(&type4.manufacturer, opts, "manufacturer");
1101             save_opt(&type4.version, opts, "version");
1102             save_opt(&type4.serial, opts, "serial");
1103             save_opt(&type4.asset, opts, "asset");
1104             save_opt(&type4.part, opts, "part");
1105             return;
1106         case 11:
1107             qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal);
1108             save_opt_list(&type11.nvalues, &type11.values, opts, "value");
1109             return;
1110         case 17:
1111             qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal);
1112             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1113             save_opt(&type17.bank, opts, "bank");
1114             save_opt(&type17.manufacturer, opts, "manufacturer");
1115             save_opt(&type17.serial, opts, "serial");
1116             save_opt(&type17.asset, opts, "asset");
1117             save_opt(&type17.part, opts, "part");
1118             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1119             return;
1120         default:
1121             error_report("Don't know how to build fields for SMBIOS type %ld",
1122                          type);
1123             exit(1);
1124         }
1125     }
1126
1127     error_report("Must specify type= or file=");
1128     exit(1);
1129 }