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     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
 100     uint16_t speed;
 101 } type17;
 102
 103 static QemuOptsList qemu_smbios_opts = {
 104     .name = "smbios",
 105     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 106     .desc = {
 107         /*
 108          * no elements => accept any params
 109          * validation will happen later
 110          */
 111         { /* end of list */ }
 112     }
 113 };
 114
 115 static const QemuOptDesc qemu_smbios_file_opts[] = {
 116     {
 117         .name = "file",
 118         .type = QEMU_OPT_STRING,
 119         .help = "binary file containing an SMBIOS element",
 120     },
 121     { /* end of list */ }
 122 };
 123
 124 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 125     {
 126         .name = "type",
 127         .type = QEMU_OPT_NUMBER,
 128         .help = "SMBIOS element type",
 129     },{
 130         .name = "vendor",
 131         .type = QEMU_OPT_STRING,
 132         .help = "vendor name",
 133     },{
 134         .name = "version",
 135         .type = QEMU_OPT_STRING,
 136         .help = "version number",
 137     },{
 138         .name = "date",
 139         .type = QEMU_OPT_STRING,
 140         .help = "release date",
 141     },{
 142         .name = "release",
 143         .type = QEMU_OPT_STRING,
 144         .help = "revision number",
 145     },{
 146         .name = "uefi",
 147         .type = QEMU_OPT_BOOL,
 148         .help = "uefi support",
 149     },
 150     { /* end of list */ }
 151 };
 152
 153 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 154     {
 155         .name = "type",
 156         .type = QEMU_OPT_NUMBER,
 157         .help = "SMBIOS element type",
 158     },{
 159         .name = "manufacturer",
 160         .type = QEMU_OPT_STRING,
 161         .help = "manufacturer name",
 162     },{
 163         .name = "product",
 164         .type = QEMU_OPT_STRING,
 165         .help = "product name",
 166     },{
 167         .name = "version",
 168         .type = QEMU_OPT_STRING,
 169         .help = "version number",
 170     },{
 171         .name = "serial",
 172         .type = QEMU_OPT_STRING,
 173         .help = "serial number",
 174     },{
 175         .name = "uuid",
 176         .type = QEMU_OPT_STRING,
 177         .help = "UUID",
 178     },{
 179         .name = "sku",
 180         .type = QEMU_OPT_STRING,
 181         .help = "SKU number",
 182     },{
 183         .name = "family",
 184         .type = QEMU_OPT_STRING,
 185         .help = "family name",
 186     },
 187     { /* end of list */ }
 188 };
 189
 190 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 191     {
 192         .name = "type",
 193         .type = QEMU_OPT_NUMBER,
 194         .help = "SMBIOS element type",
 195     },{
 196         .name = "manufacturer",
 197         .type = QEMU_OPT_STRING,
 198         .help = "manufacturer name",
 199     },{
 200         .name = "product",
 201         .type = QEMU_OPT_STRING,
 202         .help = "product name",
 203     },{
 204         .name = "version",
 205         .type = QEMU_OPT_STRING,
 206         .help = "version number",
 207     },{
 208         .name = "serial",
 209         .type = QEMU_OPT_STRING,
 210         .help = "serial number",
 211     },{
 212         .name = "asset",
 213         .type = QEMU_OPT_STRING,
 214         .help = "asset tag number",
 215     },{
 216         .name = "location",
 217         .type = QEMU_OPT_STRING,
 218         .help = "location in chassis",
 219     },
 220     { /* end of list */ }
 221 };
 222
 223 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 224     {
 225         .name = "type",
 226         .type = QEMU_OPT_NUMBER,
 227         .help = "SMBIOS element type",
 228     },{
 229         .name = "manufacturer",
 230         .type = QEMU_OPT_STRING,
 231         .help = "manufacturer name",
 232     },{
 233         .name = "version",
 234         .type = QEMU_OPT_STRING,
 235         .help = "version number",
 236     },{
 237         .name = "serial",
 238         .type = QEMU_OPT_STRING,
 239         .help = "serial number",
 240     },{
 241         .name = "asset",
 242         .type = QEMU_OPT_STRING,
 243         .help = "asset tag number",
 244     },{
 245         .name = "sku",
 246         .type = QEMU_OPT_STRING,
 247         .help = "SKU number",
 248     },
 249     { /* end of list */ }
 250 };
 251
 252 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 253     {
 254         .name = "type",
 255         .type = QEMU_OPT_NUMBER,
 256         .help = "SMBIOS element type",
 257     },{
 258         .name = "sock_pfx",
 259         .type = QEMU_OPT_STRING,
 260         .help = "socket designation string prefix",
 261     },{
 262         .name = "manufacturer",
 263         .type = QEMU_OPT_STRING,
 264         .help = "manufacturer name",
 265     },{
 266         .name = "version",
 267         .type = QEMU_OPT_STRING,
 268         .help = "version number",
 269     },{
 270         .name = "serial",
 271         .type = QEMU_OPT_STRING,
 272         .help = "serial number",
 273     },{
 274         .name = "asset",
 275         .type = QEMU_OPT_STRING,
 276         .help = "asset tag number",
 277     },{
 278         .name = "part",
 279         .type = QEMU_OPT_STRING,
 280         .help = "part number",
 281     },
 282     { /* end of list */ }
 283 };
 284
 285 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 286     {
 287         .name = "type",
 288         .type = QEMU_OPT_NUMBER,
 289         .help = "SMBIOS element type",
 290     },{
 291         .name = "loc_pfx",
 292         .type = QEMU_OPT_STRING,
 293         .help = "device locator string prefix",
 294     },{
 295         .name = "bank",
 296         .type = QEMU_OPT_STRING,
 297         .help = "bank locator string",
 298     },{
 299         .name = "manufacturer",
 300         .type = QEMU_OPT_STRING,
 301         .help = "manufacturer name",
 302     },{
 303         .name = "serial",
 304         .type = QEMU_OPT_STRING,
 305         .help = "serial number",
 306     },{
 307         .name = "asset",
 308         .type = QEMU_OPT_STRING,
 309         .help = "asset tag number",
 310     },{
 311         .name = "part",
 312         .type = QEMU_OPT_STRING,
 313         .help = "part number",
 314     },{
 315         .name = "speed",
 316         .type = QEMU_OPT_NUMBER,
 317         .help = "maximum capable speed",
 318     },
 319     { /* end of list */ }
 320 };
 321
 322 static void smbios_register_config(void)
 323 {
 324     qemu_add_opts(&qemu_smbios_opts);
 325 }
 326
 327 opts_init(smbios_register_config);
 328
 329 static void smbios_validate_table(void)
 330 {
 331     uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets;
 332
 333     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 334         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 335                      expect_t4_count, smbios_type4_count);
 336         exit(1);
 337     }
 338 }
 339
 340
 341 /* legacy setup functions for <= 2.0 machines */
 342 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 343 {
 344     struct smbios_field *field;
 345
 346     if (!smbios_entries) {
 347         smbios_entries_len = sizeof(uint16_t);
 348         smbios_entries = g_malloc0(smbios_entries_len);
 349     }
 350     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 351                                                   sizeof(*field) + len);
 352     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 353     field->header.type = SMBIOS_FIELD_ENTRY;
 354     field->header.length = cpu_to_le16(sizeof(*field) + len);
 355
 356     field->type = type;
 357     field->offset = cpu_to_le16(offset);
 358     memcpy(field->data, data, len);
 359
 360     smbios_entries_len += sizeof(*field) + len;
 361     (*(uint16_t *)smbios_entries) =
 362             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 363 }
 364
 365 static void smbios_maybe_add_str(int type, int offset, const char *data)
 366 {
 367     if (data) {
 368         smbios_add_field(type, offset, data, strlen(data) + 1);
 369     }
 370 }
 371
 372 static void smbios_build_type_0_fields(void)
 373 {
 374     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 375                          type0.vendor);
 376     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 377                          type0.version);
 378     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 379                                      bios_release_date_str),
 380                          type0.date);
 381     if (type0.have_major_minor) {
 382         smbios_add_field(0, offsetof(struct smbios_type_0,
 383                                      system_bios_major_release),
 384                          &type0.major, 1);
 385         smbios_add_field(0, offsetof(struct smbios_type_0,
 386                                      system_bios_minor_release),
 387                          &type0.minor, 1);
 388     }
 389 }
 390
 391 static void smbios_build_type_1_fields(void)
 392 {
 393     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 394                          type1.manufacturer);
 395     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 396                          type1.product);
 397     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 398                          type1.version);
 399     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 400                          type1.serial);
 401     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 402                          type1.sku);
 403     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 404                          type1.family);
 405     if (qemu_uuid_set) {
 406         /* We don't encode the UUID in the "wire format" here because this
 407          * function is for legacy mode and needs to keep the guest ABI, and
 408          * because we don't know what's the SMBIOS version advertised by the
 409          * BIOS.
 410          */
 411         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 412                          &qemu_uuid, 16);
 413     }
 414 }
 415
 416 uint8_t *smbios_get_table_legacy(size_t *length)
 417 {
 418     if (!smbios_legacy) {
 419         *length = 0;
 420         return NULL;
 421     }
 422
 423     if (!smbios_immutable) {
 424         smbios_build_type_0_fields();
 425         smbios_build_type_1_fields();
 426         smbios_validate_table();
 427         smbios_immutable = true;
 428     }
 429     *length = smbios_entries_len;
 430     return smbios_entries;
 431 }
 432 /* end: legacy setup functions for <= 2.0 machines */
 433
 434
 435 bool smbios_skip_table(uint8_t type, bool required_table)
 436 {
 437     if (test_bit(type, have_binfile_bitmap)) {
 438         return true; /* user provided their own binary blob(s) */
 439     }
 440     if (test_bit(type, have_fields_bitmap)) {
 441         return false; /* user provided fields via command line */
 442     }
 443     if (smbios_have_defaults && required_table) {
 444         return false; /* we're building tables, and this one's required */
 445     }
 446     return true;
 447 }
 448
 449 static void smbios_build_type_0_table(void)
 450 {
 451     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 452
 453     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 454     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 455
 456     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 457
 458     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 459
 460     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 461
 462     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 463     t->bios_characteristics_extension_bytes[0] = 0;
 464     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 465     if (type0.uefi) {
 466         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 467     }
 468
 469     if (type0.have_major_minor) {
 470         t->system_bios_major_release = type0.major;
 471         t->system_bios_minor_release = type0.minor;
 472     } else {
 473         t->system_bios_major_release = 0;
 474         t->system_bios_minor_release = 0;
 475     }
 476
 477     /* hardcoded in SeaBIOS */
 478     t->embedded_controller_major_release = 0xFF;
 479     t->embedded_controller_minor_release = 0xFF;
 480
 481     SMBIOS_BUILD_TABLE_POST;
 482 }
 483
 484 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 485  * format specified by SMBIOS version 2.6.
 486  */
 487 static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
 488 {
 489     memcpy(uuid, in, 16);
 490     if (smbios_uuid_encoded) {
 491         uuid->time_low = bswap32(uuid->time_low);
 492         uuid->time_mid = bswap16(uuid->time_mid);
 493         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 494     }
 495 }
 496
 497 static void smbios_build_type_1_table(void)
 498 {
 499     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 500
 501     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 502     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 503     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 504     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 505     if (qemu_uuid_set) {
 506         smbios_encode_uuid(&t->uuid, &qemu_uuid);
 507     } else {
 508         memset(&t->uuid, 0, 16);
 509     }
 510     t->wake_up_type = 0x06; /* power switch */
 511     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 512     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 513
 514     SMBIOS_BUILD_TABLE_POST;
 515 }
 516
 517 static void smbios_build_type_2_table(void)
 518 {
 519     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 520
 521     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 522     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 523     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 524     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 525     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 526     t->feature_flags = 0x01; /* Motherboard */
 527     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 528     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 529     t->board_type = 0x0A; /* Motherboard */
 530     t->contained_element_count = 0;
 531
 532     SMBIOS_BUILD_TABLE_POST;
 533 }
 534
 535 static void smbios_build_type_3_table(void)
 536 {
 537     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 538
 539     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 540     t->type = 0x01; /* Other */
 541     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 542     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 543     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 544     t->boot_up_state = 0x03; /* Safe */
 545     t->power_supply_state = 0x03; /* Safe */
 546     t->thermal_state = 0x03; /* Safe */
 547     t->security_status = 0x02; /* Unknown */
 548     t->oem_defined = cpu_to_le32(0);
 549     t->height = 0;
 550     t->number_of_power_cords = 0;
 551     t->contained_element_count = 0;
 552     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 553
 554     SMBIOS_BUILD_TABLE_POST;
 555 }
 556
 557 static void smbios_build_type_4_table(unsigned instance)
 558 {
 559     char sock_str[128];
 560
 561     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 562
 563     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 564     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 565     t->processor_type = 0x03; /* CPU */
 566     t->processor_family = 0x01; /* Other */
 567     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 568     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 569     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 570     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 571     t->voltage = 0;
 572     t->external_clock = cpu_to_le16(0); /* Unknown */
 573     /* SVVP requires max_speed and current_speed to not be unknown. */
 574     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 575     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 576     t->status = 0x41; /* Socket populated, CPU enabled */
 577     t->processor_upgrade = 0x01; /* Other */
 578     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 579     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 580     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 581     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 582     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 583     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 584     t->core_count = t->core_enabled = smp_cores;
 585     t->thread_count = smp_threads;
 586     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 587     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 588
 589     SMBIOS_BUILD_TABLE_POST;
 590     smbios_type4_count++;
 591 }
 592
 593 #define ONE_KB ((ram_addr_t)1 << 10)
 594 #define ONE_MB ((ram_addr_t)1 << 20)
 595 #define ONE_GB ((ram_addr_t)1 << 30)
 596
 597 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 598
 599 static void smbios_build_type_16_table(unsigned dimm_cnt)
 600 {
 601     uint64_t size_kb;
 602
 603     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 604
 605     t->location = 0x01; /* Other */
 606     t->use = 0x03; /* System memory */
 607     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 608     size_kb = QEMU_ALIGN_UP(ram_size, ONE_KB) / ONE_KB;
 609     if (size_kb < MAX_T16_STD_SZ) {
 610         t->maximum_capacity = cpu_to_le32(size_kb);
 611         t->extended_maximum_capacity = cpu_to_le64(0);
 612     } else {
 613         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 614         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 615     }
 616     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 617     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 618
 619     SMBIOS_BUILD_TABLE_POST;
 620 }
 621
 622 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 623 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 624
 625 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 626 {
 627     char loc_str[128];
 628     uint64_t size_mb;
 629
 630     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 631
 632     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 633     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 634     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 635     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 636     size_mb = QEMU_ALIGN_UP(size, ONE_MB) / ONE_MB;
 637     if (size_mb < MAX_T17_STD_SZ) {
 638         t->size = cpu_to_le16(size_mb);
 639         t->extended_size = cpu_to_le32(0);
 640     } else {
 641         assert(size_mb < MAX_T17_EXT_SZ);
 642         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 643         t->extended_size = cpu_to_le32(size_mb);
 644     }
 645     t->form_factor = 0x09; /* DIMM */
 646     t->device_set = 0; /* Not in a set */
 647     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 648     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 649     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 650     t->memory_type = 0x07; /* RAM */
 651     t->type_detail = cpu_to_le16(0x02); /* Other */
 652     t->speed = cpu_to_le16(type17.speed);
 653     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 654     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 655     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 656     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 657     t->attributes = 0; /* Unknown */
 658     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 659     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 660     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 661     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 662
 663     SMBIOS_BUILD_TABLE_POST;
 664 }
 665
 666 static void smbios_build_type_19_table(unsigned instance,
 667                                        uint64_t start, uint64_t size)
 668 {
 669     uint64_t end, start_kb, end_kb;
 670
 671     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 672
 673     end = start + size - 1;
 674     assert(end > start);
 675     start_kb = start / ONE_KB;
 676     end_kb = end / ONE_KB;
 677     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 678         t->starting_address = cpu_to_le32(start_kb);
 679         t->ending_address = cpu_to_le32(end_kb);
 680         t->extended_starting_address =
 681             t->extended_ending_address = cpu_to_le64(0);
 682     } else {
 683         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 684         t->extended_starting_address = cpu_to_le64(start);
 685         t->extended_ending_address = cpu_to_le64(end);
 686     }
 687     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 688     t->partition_width = 1; /* One device per row */
 689
 690     SMBIOS_BUILD_TABLE_POST;
 691 }
 692
 693 static void smbios_build_type_32_table(void)
 694 {
 695     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 696
 697     memset(t->reserved, 0, 6);
 698     t->boot_status = 0; /* No errors detected */
 699
 700     SMBIOS_BUILD_TABLE_POST;
 701 }
 702
 703 static void smbios_build_type_127_table(void)
 704 {
 705     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 706     SMBIOS_BUILD_TABLE_POST;
 707 }
 708
 709 void smbios_set_cpuid(uint32_t version, uint32_t features)
 710 {
 711     smbios_cpuid_version = version;
 712     smbios_cpuid_features = features;
 713 }
 714
 715 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 716     if (!field) {                                                         \
 717         field = value;                                                    \
 718     }
 719
 720 void smbios_set_defaults(const char *manufacturer, const char *product,
 721                          const char *version, bool legacy_mode,
 722                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 723 {
 724     smbios_have_defaults = true;
 725     smbios_legacy = legacy_mode;
 726     smbios_uuid_encoded = uuid_encoded;
 727     smbios_ep_type = ep_type;
 728
 729     /* drop unwanted version of command-line file blob(s) */
 730     if (smbios_legacy) {
 731         g_free(smbios_tables);
 732         /* in legacy mode, also complain if fields were given for types > 1 */
 733         if (find_next_bit(have_fields_bitmap,
 734                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 735             error_report("can't process fields for smbios "
 736                          "types > 1 on machine versions < 2.1!");
 737             exit(1);
 738         }
 739     } else {
 740         g_free(smbios_entries);
 741     }
 742
 743     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 744     SMBIOS_SET_DEFAULT(type1.product, product);
 745     SMBIOS_SET_DEFAULT(type1.version, version);
 746     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 747     SMBIOS_SET_DEFAULT(type2.product, product);
 748     SMBIOS_SET_DEFAULT(type2.version, version);
 749     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 750     SMBIOS_SET_DEFAULT(type3.version, version);
 751     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 752     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 753     SMBIOS_SET_DEFAULT(type4.version, version);
 754     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 755     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 756 }
 757
 758 static void smbios_entry_point_setup(void)
 759 {
 760     switch (smbios_ep_type) {
 761     case SMBIOS_ENTRY_POINT_21:
 762         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 763         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 764         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 765         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 766         memset(ep.ep21.formatted_area, 0, 5);
 767
 768         /* compliant with smbios spec v2.8 */
 769         ep.ep21.smbios_major_version = 2;
 770         ep.ep21.smbios_minor_version = 8;
 771         ep.ep21.smbios_bcd_revision = 0x28;
 772
 773         /* set during table construction, but BIOS may override: */
 774         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 775         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 776         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 777
 778         /* BIOS must recalculate */
 779         ep.ep21.checksum = 0;
 780         ep.ep21.intermediate_checksum = 0;
 781         ep.ep21.structure_table_address = cpu_to_le32(0);
 782
 783         break;
 784     case SMBIOS_ENTRY_POINT_30:
 785         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 786         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 787         ep.ep30.entry_point_revision = 1;
 788         ep.ep30.reserved = 0;
 789
 790         /* compliant with smbios spec 3.0 */
 791         ep.ep30.smbios_major_version = 3;
 792         ep.ep30.smbios_minor_version = 0;
 793         ep.ep30.smbios_doc_rev = 0;
 794
 795         /* set during table construct, but BIOS might override */
 796         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 797
 798         /* BIOS must recalculate */
 799         ep.ep30.checksum = 0;
 800         ep.ep30.structure_table_address = cpu_to_le64(0);
 801
 802         break;
 803     default:
 804         abort();
 805         break;
 806     }
 807 }
 808
 809 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
 810                        const unsigned int mem_array_size,
 811                        uint8_t **tables, size_t *tables_len,
 812                        uint8_t **anchor, size_t *anchor_len)
 813 {
 814     unsigned i, dimm_cnt;
 815
 816     if (smbios_legacy) {
 817         *tables = *anchor = NULL;
 818         *tables_len = *anchor_len = 0;
 819         return;
 820     }
 821
 822     if (!smbios_immutable) {
 823         smbios_build_type_0_table();
 824         smbios_build_type_1_table();
 825         smbios_build_type_2_table();
 826         smbios_build_type_3_table();
 827
 828         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 829         assert(smbios_smp_sockets >= 1);
 830
 831         for (i = 0; i < smbios_smp_sockets; i++) {
 832             smbios_build_type_4_table(i);
 833         }
 834
 835 #define MAX_DIMM_SZ (16ll * ONE_GB)
 836 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 837                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 838
 839         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 840
 841         smbios_build_type_16_table(dimm_cnt);
 842
 843         for (i = 0; i < dimm_cnt; i++) {
 844             smbios_build_type_17_table(i, GET_DIMM_SZ);
 845         }
 846
 847         for (i = 0; i < mem_array_size; i++) {
 848             smbios_build_type_19_table(i, mem_array[i].address,
 849                                        mem_array[i].length);
 850         }
 851
 852         smbios_build_type_32_table();
 853         smbios_build_type_38_table();
 854         smbios_build_type_127_table();
 855
 856         smbios_validate_table();
 857         smbios_entry_point_setup();
 858         smbios_immutable = true;
 859     }
 860
 861     /* return tables blob and entry point (anchor), and their sizes */
 862     *tables = smbios_tables;
 863     *tables_len = smbios_tables_len;
 864     *anchor = (uint8_t *)&ep;
 865
 866     /* calculate length based on anchor string */
 867     if (!strncmp((char *)&ep, "_SM_", 4)) {
 868         *anchor_len = sizeof(struct smbios_21_entry_point);
 869     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 870         *anchor_len = sizeof(struct smbios_30_entry_point);
 871     } else {
 872         abort();
 873     }
 874 }
 875
 876 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 877 {
 878     const char *val = qemu_opt_get(opts, name);
 879
 880     if (val) {
 881         *dest = val;
 882     }
 883 }
 884
 885 void smbios_entry_add(QemuOpts *opts)
 886 {
 887     const char *val;
 888
 889     assert(!smbios_immutable);
 890
 891     val = qemu_opt_get(opts, "file");
 892     if (val) {
 893         struct smbios_structure_header *header;
 894         int size;
 895         struct smbios_table *table; /* legacy mode only */
 896
 897         qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal);
 898
 899         size = get_image_size(val);
 900         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 901             error_report("Cannot read SMBIOS file %s", val);
 902             exit(1);
 903         }
 904
 905         /*
 906          * NOTE: standard double '\0' terminator expected, per smbios spec.
 907          * (except in legacy mode, where the second '\0' is implicit and
 908          *  will be inserted by the BIOS).
 909          */
 910         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 911         header = (struct smbios_structure_header *)(smbios_tables +
 912                                                     smbios_tables_len);
 913
 914         if (load_image(val, (uint8_t *)header) != size) {
 915             error_report("Failed to load SMBIOS file %s", val);
 916             exit(1);
 917         }
 918
 919         if (test_bit(header->type, have_fields_bitmap)) {
 920             error_report("can't load type %d struct, fields already specified!",
 921                          header->type);
 922             exit(1);
 923         }
 924         set_bit(header->type, have_binfile_bitmap);
 925
 926         if (header->type == 4) {
 927             smbios_type4_count++;
 928         }
 929
 930         smbios_tables_len += size;
 931         if (size > smbios_table_max) {
 932             smbios_table_max = size;
 933         }
 934         smbios_table_cnt++;
 935
 936         /* add a copy of the newly loaded blob to legacy smbios_entries */
 937         /* NOTE: This code runs before smbios_set_defaults(), so we don't
 938          *       yet know which mode (legacy vs. aggregate-table) will be
 939          *       required. We therefore add the binary blob to both legacy
 940          *       (smbios_entries) and aggregate (smbios_tables) tables, and
 941          *       delete the one we don't need from smbios_set_defaults(),
 942          *       once we know which machine version has been requested.
 943          */
 944         if (!smbios_entries) {
 945             smbios_entries_len = sizeof(uint16_t);
 946             smbios_entries = g_malloc0(smbios_entries_len);
 947         }
 948         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 949                                                    size + sizeof(*table));
 950         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
 951         table->header.type = SMBIOS_TABLE_ENTRY;
 952         table->header.length = cpu_to_le16(sizeof(*table) + size);
 953         memcpy(table->data, header, size);
 954         smbios_entries_len += sizeof(*table) + size;
 955         (*(uint16_t *)smbios_entries) =
 956                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 957         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
 958
 959         return;
 960     }
 961
 962     val = qemu_opt_get(opts, "type");
 963     if (val) {
 964         unsigned long type = strtoul(val, NULL, 0);
 965
 966         if (type > SMBIOS_MAX_TYPE) {
 967             error_report("out of range!");
 968             exit(1);
 969         }
 970
 971         if (test_bit(type, have_binfile_bitmap)) {
 972             error_report("can't add fields, binary file already loaded!");
 973             exit(1);
 974         }
 975         set_bit(type, have_fields_bitmap);
 976
 977         switch (type) {
 978         case 0:
 979             qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal);
 980             save_opt(&type0.vendor, opts, "vendor");
 981             save_opt(&type0.version, opts, "version");
 982             save_opt(&type0.date, opts, "date");
 983             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
 984
 985             val = qemu_opt_get(opts, "release");
 986             if (val) {
 987                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
 988                     error_report("Invalid release");
 989                     exit(1);
 990                 }
 991                 type0.have_major_minor = true;
 992             }
 993             return;
 994         case 1:
 995             qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal);
 996             save_opt(&type1.manufacturer, opts, "manufacturer");
 997             save_opt(&type1.product, opts, "product");
 998             save_opt(&type1.version, opts, "version");
 999             save_opt(&type1.serial, opts, "serial");
1000             save_opt(&type1.sku, opts, "sku");
1001             save_opt(&type1.family, opts, "family");
1002
1003             val = qemu_opt_get(opts, "uuid");
1004             if (val) {
1005                 if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
1006                     error_report("Invalid UUID");
1007                     exit(1);
1008                 }
1009                 qemu_uuid_set = true;
1010             }
1011             return;
1012         case 2:
1013             qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal);
1014             save_opt(&type2.manufacturer, opts, "manufacturer");
1015             save_opt(&type2.product, opts, "product");
1016             save_opt(&type2.version, opts, "version");
1017             save_opt(&type2.serial, opts, "serial");
1018             save_opt(&type2.asset, opts, "asset");
1019             save_opt(&type2.location, opts, "location");
1020             return;
1021         case 3:
1022             qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal);
1023             save_opt(&type3.manufacturer, opts, "manufacturer");
1024             save_opt(&type3.version, opts, "version");
1025             save_opt(&type3.serial, opts, "serial");
1026             save_opt(&type3.asset, opts, "asset");
1027             save_opt(&type3.sku, opts, "sku");
1028             return;
1029         case 4:
1030             qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal);
1031             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1032             save_opt(&type4.manufacturer, opts, "manufacturer");
1033             save_opt(&type4.version, opts, "version");
1034             save_opt(&type4.serial, opts, "serial");
1035             save_opt(&type4.asset, opts, "asset");
1036             save_opt(&type4.part, opts, "part");
1037             return;
1038         case 17:
1039             qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal);
1040             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1041             save_opt(&type17.bank, opts, "bank");
1042             save_opt(&type17.manufacturer, opts, "manufacturer");
1043             save_opt(&type17.serial, opts, "serial");
1044             save_opt(&type17.asset, opts, "asset");
1045             save_opt(&type17.part, opts, "part");
1046             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1047             return;
1048         default:
1049             error_report("Don't know how to build fields for SMBIOS type %ld",
1050                          type);
1051             exit(1);
1052         }
1053     }
1054
1055     error_report("Must specify type= or file=");
1056     exit(1);
1057 }