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 "sysemu/cpus.h"
  24 #include "hw/smbios/smbios.h"
  25 #include "hw/loader.h"
  26 #include "exec/cpu-common.h"
  27 #include "smbios_build.h"
  28 #include "hw/smbios/ipmi.h"
  29
  30 /* legacy structures and constants for <= 2.0 machines */
  31 struct smbios_header {
  32     uint16_t length;
  33     uint8_t type;
  34 } QEMU_PACKED;
  35
  36 struct smbios_field {
  37     struct smbios_header header;
  38     uint8_t type;
  39     uint16_t offset;
  40     uint8_t data[];
  41 } QEMU_PACKED;
  42
  43 struct smbios_table {
  44     struct smbios_header header;
  45     uint8_t data[];
  46 } QEMU_PACKED;
  47
  48 #define SMBIOS_FIELD_ENTRY 0
  49 #define SMBIOS_TABLE_ENTRY 1
  50
  51 static uint8_t *smbios_entries;
  52 static size_t smbios_entries_len;
  53 static bool smbios_legacy = true;
  54 static bool smbios_uuid_encoded = true;
  55 /* end: legacy structures & constants for <= 2.0 machines */
  56
  57
  58 uint8_t *smbios_tables;
  59 size_t smbios_tables_len;
  60 unsigned smbios_table_max;
  61 unsigned smbios_table_cnt;
  62 static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
  63
  64 static SmbiosEntryPoint ep;
  65
  66 static int smbios_type4_count = 0;
  67 static bool smbios_immutable;
  68 static bool smbios_have_defaults;
  69 static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
  70
  71 static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
  72 static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
  73
  74 static struct {
  75     const char *vendor, *version, *date;
  76     bool have_major_minor, uefi;
  77     uint8_t major, minor;
  78 } type0;
  79
  80 static struct {
  81     const char *manufacturer, *product, *version, *serial, *sku, *family;
  82     /* uuid is in qemu_uuid[] */
  83 } type1;
  84
  85 static struct {
  86     const char *manufacturer, *product, *version, *serial, *asset, *location;
  87 } type2;
  88
  89 static struct {
  90     const char *manufacturer, *version, *serial, *asset, *sku;
  91 } type3;
  92
  93 static struct {
  94     const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
  95 } type4;
  96
  97 static struct {
  98     const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
  99     uint16_t speed;
 100 } type17;
 101
 102 static QemuOptsList qemu_smbios_opts = {
 103     .name = "smbios",
 104     .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
 105     .desc = {
 106         /*
 107          * no elements => accept any params
 108          * validation will happen later
 109          */
 110         { /* end of list */ }
 111     }
 112 };
 113
 114 static const QemuOptDesc qemu_smbios_file_opts[] = {
 115     {
 116         .name = "file",
 117         .type = QEMU_OPT_STRING,
 118         .help = "binary file containing an SMBIOS element",
 119     },
 120     { /* end of list */ }
 121 };
 122
 123 static const QemuOptDesc qemu_smbios_type0_opts[] = {
 124     {
 125         .name = "type",
 126         .type = QEMU_OPT_NUMBER,
 127         .help = "SMBIOS element type",
 128     },{
 129         .name = "vendor",
 130         .type = QEMU_OPT_STRING,
 131         .help = "vendor name",
 132     },{
 133         .name = "version",
 134         .type = QEMU_OPT_STRING,
 135         .help = "version number",
 136     },{
 137         .name = "date",
 138         .type = QEMU_OPT_STRING,
 139         .help = "release date",
 140     },{
 141         .name = "release",
 142         .type = QEMU_OPT_STRING,
 143         .help = "revision number",
 144     },{
 145         .name = "uefi",
 146         .type = QEMU_OPT_BOOL,
 147         .help = "uefi support",
 148     },
 149     { /* end of list */ }
 150 };
 151
 152 static const QemuOptDesc qemu_smbios_type1_opts[] = {
 153     {
 154         .name = "type",
 155         .type = QEMU_OPT_NUMBER,
 156         .help = "SMBIOS element type",
 157     },{
 158         .name = "manufacturer",
 159         .type = QEMU_OPT_STRING,
 160         .help = "manufacturer name",
 161     },{
 162         .name = "product",
 163         .type = QEMU_OPT_STRING,
 164         .help = "product name",
 165     },{
 166         .name = "version",
 167         .type = QEMU_OPT_STRING,
 168         .help = "version number",
 169     },{
 170         .name = "serial",
 171         .type = QEMU_OPT_STRING,
 172         .help = "serial number",
 173     },{
 174         .name = "uuid",
 175         .type = QEMU_OPT_STRING,
 176         .help = "UUID",
 177     },{
 178         .name = "sku",
 179         .type = QEMU_OPT_STRING,
 180         .help = "SKU number",
 181     },{
 182         .name = "family",
 183         .type = QEMU_OPT_STRING,
 184         .help = "family name",
 185     },
 186     { /* end of list */ }
 187 };
 188
 189 static const QemuOptDesc qemu_smbios_type2_opts[] = {
 190     {
 191         .name = "type",
 192         .type = QEMU_OPT_NUMBER,
 193         .help = "SMBIOS element type",
 194     },{
 195         .name = "manufacturer",
 196         .type = QEMU_OPT_STRING,
 197         .help = "manufacturer name",
 198     },{
 199         .name = "product",
 200         .type = QEMU_OPT_STRING,
 201         .help = "product name",
 202     },{
 203         .name = "version",
 204         .type = QEMU_OPT_STRING,
 205         .help = "version number",
 206     },{
 207         .name = "serial",
 208         .type = QEMU_OPT_STRING,
 209         .help = "serial number",
 210     },{
 211         .name = "asset",
 212         .type = QEMU_OPT_STRING,
 213         .help = "asset tag number",
 214     },{
 215         .name = "location",
 216         .type = QEMU_OPT_STRING,
 217         .help = "location in chassis",
 218     },
 219     { /* end of list */ }
 220 };
 221
 222 static const QemuOptDesc qemu_smbios_type3_opts[] = {
 223     {
 224         .name = "type",
 225         .type = QEMU_OPT_NUMBER,
 226         .help = "SMBIOS element type",
 227     },{
 228         .name = "manufacturer",
 229         .type = QEMU_OPT_STRING,
 230         .help = "manufacturer name",
 231     },{
 232         .name = "version",
 233         .type = QEMU_OPT_STRING,
 234         .help = "version number",
 235     },{
 236         .name = "serial",
 237         .type = QEMU_OPT_STRING,
 238         .help = "serial number",
 239     },{
 240         .name = "asset",
 241         .type = QEMU_OPT_STRING,
 242         .help = "asset tag number",
 243     },{
 244         .name = "sku",
 245         .type = QEMU_OPT_STRING,
 246         .help = "SKU number",
 247     },
 248     { /* end of list */ }
 249 };
 250
 251 static const QemuOptDesc qemu_smbios_type4_opts[] = {
 252     {
 253         .name = "type",
 254         .type = QEMU_OPT_NUMBER,
 255         .help = "SMBIOS element type",
 256     },{
 257         .name = "sock_pfx",
 258         .type = QEMU_OPT_STRING,
 259         .help = "socket designation string prefix",
 260     },{
 261         .name = "manufacturer",
 262         .type = QEMU_OPT_STRING,
 263         .help = "manufacturer name",
 264     },{
 265         .name = "version",
 266         .type = QEMU_OPT_STRING,
 267         .help = "version number",
 268     },{
 269         .name = "serial",
 270         .type = QEMU_OPT_STRING,
 271         .help = "serial number",
 272     },{
 273         .name = "asset",
 274         .type = QEMU_OPT_STRING,
 275         .help = "asset tag number",
 276     },{
 277         .name = "part",
 278         .type = QEMU_OPT_STRING,
 279         .help = "part number",
 280     },
 281     { /* end of list */ }
 282 };
 283
 284 static const QemuOptDesc qemu_smbios_type17_opts[] = {
 285     {
 286         .name = "type",
 287         .type = QEMU_OPT_NUMBER,
 288         .help = "SMBIOS element type",
 289     },{
 290         .name = "loc_pfx",
 291         .type = QEMU_OPT_STRING,
 292         .help = "device locator string prefix",
 293     },{
 294         .name = "bank",
 295         .type = QEMU_OPT_STRING,
 296         .help = "bank locator string",
 297     },{
 298         .name = "manufacturer",
 299         .type = QEMU_OPT_STRING,
 300         .help = "manufacturer name",
 301     },{
 302         .name = "serial",
 303         .type = QEMU_OPT_STRING,
 304         .help = "serial number",
 305     },{
 306         .name = "asset",
 307         .type = QEMU_OPT_STRING,
 308         .help = "asset tag number",
 309     },{
 310         .name = "part",
 311         .type = QEMU_OPT_STRING,
 312         .help = "part number",
 313     },{
 314         .name = "speed",
 315         .type = QEMU_OPT_NUMBER,
 316         .help = "maximum capable speed",
 317     },
 318     { /* end of list */ }
 319 };
 320
 321 static void smbios_register_config(void)
 322 {
 323     qemu_add_opts(&qemu_smbios_opts);
 324 }
 325
 326 opts_init(smbios_register_config);
 327
 328 static void smbios_validate_table(void)
 329 {
 330     uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets;
 331
 332     if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
 333         error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
 334                      expect_t4_count, smbios_type4_count);
 335         exit(1);
 336     }
 337 }
 338
 339
 340 /* legacy setup functions for <= 2.0 machines */
 341 static void smbios_add_field(int type, int offset, const void *data, size_t len)
 342 {
 343     struct smbios_field *field;
 344
 345     if (!smbios_entries) {
 346         smbios_entries_len = sizeof(uint16_t);
 347         smbios_entries = g_malloc0(smbios_entries_len);
 348     }
 349     smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 350                                                   sizeof(*field) + len);
 351     field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
 352     field->header.type = SMBIOS_FIELD_ENTRY;
 353     field->header.length = cpu_to_le16(sizeof(*field) + len);
 354
 355     field->type = type;
 356     field->offset = cpu_to_le16(offset);
 357     memcpy(field->data, data, len);
 358
 359     smbios_entries_len += sizeof(*field) + len;
 360     (*(uint16_t *)smbios_entries) =
 361             cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 362 }
 363
 364 static void smbios_maybe_add_str(int type, int offset, const char *data)
 365 {
 366     if (data) {
 367         smbios_add_field(type, offset, data, strlen(data) + 1);
 368     }
 369 }
 370
 371 static void smbios_build_type_0_fields(void)
 372 {
 373     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
 374                          type0.vendor);
 375     smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
 376                          type0.version);
 377     smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
 378                                      bios_release_date_str),
 379                          type0.date);
 380     if (type0.have_major_minor) {
 381         smbios_add_field(0, offsetof(struct smbios_type_0,
 382                                      system_bios_major_release),
 383                          &type0.major, 1);
 384         smbios_add_field(0, offsetof(struct smbios_type_0,
 385                                      system_bios_minor_release),
 386                          &type0.minor, 1);
 387     }
 388 }
 389
 390 static void smbios_build_type_1_fields(void)
 391 {
 392     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
 393                          type1.manufacturer);
 394     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
 395                          type1.product);
 396     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
 397                          type1.version);
 398     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
 399                          type1.serial);
 400     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
 401                          type1.sku);
 402     smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
 403                          type1.family);
 404     if (qemu_uuid_set) {
 405         /* We don't encode the UUID in the "wire format" here because this
 406          * function is for legacy mode and needs to keep the guest ABI, and
 407          * because we don't know what's the SMBIOS version advertised by the
 408          * BIOS.
 409          */
 410         smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
 411                          qemu_uuid, 16);
 412     }
 413 }
 414
 415 uint8_t *smbios_get_table_legacy(size_t *length)
 416 {
 417     if (!smbios_legacy) {
 418         *length = 0;
 419         return NULL;
 420     }
 421
 422     if (!smbios_immutable) {
 423         smbios_build_type_0_fields();
 424         smbios_build_type_1_fields();
 425         smbios_validate_table();
 426         smbios_immutable = true;
 427     }
 428     *length = smbios_entries_len;
 429     return smbios_entries;
 430 }
 431 /* end: legacy setup functions for <= 2.0 machines */
 432
 433
 434 bool smbios_skip_table(uint8_t type, bool required_table)
 435 {
 436     if (test_bit(type, have_binfile_bitmap)) {
 437         return true; /* user provided their own binary blob(s) */
 438     }
 439     if (test_bit(type, have_fields_bitmap)) {
 440         return false; /* user provided fields via command line */
 441     }
 442     if (smbios_have_defaults && required_table) {
 443         return false; /* we're building tables, and this one's required */
 444     }
 445     return true;
 446 }
 447
 448 static void smbios_build_type_0_table(void)
 449 {
 450     SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
 451
 452     SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
 453     SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
 454
 455     t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
 456
 457     SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
 458
 459     t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
 460
 461     t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
 462     t->bios_characteristics_extension_bytes[0] = 0;
 463     t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
 464     if (type0.uefi) {
 465         t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
 466     }
 467
 468     if (type0.have_major_minor) {
 469         t->system_bios_major_release = type0.major;
 470         t->system_bios_minor_release = type0.minor;
 471     } else {
 472         t->system_bios_major_release = 0;
 473         t->system_bios_minor_release = 0;
 474     }
 475
 476     /* hardcoded in SeaBIOS */
 477     t->embedded_controller_major_release = 0xFF;
 478     t->embedded_controller_minor_release = 0xFF;
 479
 480     SMBIOS_BUILD_TABLE_POST;
 481 }
 482
 483 /* Encode UUID from the big endian encoding described on RFC4122 to the wire
 484  * format specified by SMBIOS version 2.6.
 485  */
 486 static void smbios_encode_uuid(struct smbios_uuid *uuid, const uint8_t *buf)
 487 {
 488     memcpy(uuid, buf, 16);
 489     if (smbios_uuid_encoded) {
 490         uuid->time_low = bswap32(uuid->time_low);
 491         uuid->time_mid = bswap16(uuid->time_mid);
 492         uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
 493     }
 494 }
 495
 496 static void smbios_build_type_1_table(void)
 497 {
 498     SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
 499
 500     SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
 501     SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
 502     SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
 503     SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
 504     if (qemu_uuid_set) {
 505         smbios_encode_uuid(&t->uuid, qemu_uuid);
 506     } else {
 507         memset(&t->uuid, 0, 16);
 508     }
 509     t->wake_up_type = 0x06; /* power switch */
 510     SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
 511     SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
 512
 513     SMBIOS_BUILD_TABLE_POST;
 514 }
 515
 516 static void smbios_build_type_2_table(void)
 517 {
 518     SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
 519
 520     SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
 521     SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
 522     SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
 523     SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
 524     SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
 525     t->feature_flags = 0x01; /* Motherboard */
 526     SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
 527     t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
 528     t->board_type = 0x0A; /* Motherboard */
 529     t->contained_element_count = 0;
 530
 531     SMBIOS_BUILD_TABLE_POST;
 532 }
 533
 534 static void smbios_build_type_3_table(void)
 535 {
 536     SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
 537
 538     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
 539     t->type = 0x01; /* Other */
 540     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
 541     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
 542     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
 543     t->boot_up_state = 0x03; /* Safe */
 544     t->power_supply_state = 0x03; /* Safe */
 545     t->thermal_state = 0x03; /* Safe */
 546     t->security_status = 0x02; /* Unknown */
 547     t->oem_defined = cpu_to_le32(0);
 548     t->height = 0;
 549     t->number_of_power_cords = 0;
 550     t->contained_element_count = 0;
 551     SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
 552
 553     SMBIOS_BUILD_TABLE_POST;
 554 }
 555
 556 static void smbios_build_type_4_table(unsigned instance)
 557 {
 558     char sock_str[128];
 559
 560     SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
 561
 562     snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
 563     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
 564     t->processor_type = 0x03; /* CPU */
 565     t->processor_family = 0x01; /* Other */
 566     SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
 567     t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
 568     t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
 569     SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
 570     t->voltage = 0;
 571     t->external_clock = cpu_to_le16(0); /* Unknown */
 572     /* SVVP requires max_speed and current_speed to not be unknown. */
 573     t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
 574     t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
 575     t->status = 0x41; /* Socket populated, CPU enabled */
 576     t->processor_upgrade = 0x01; /* Other */
 577     t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 578     t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 579     t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
 580     SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
 581     SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
 582     SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
 583     t->core_count = t->core_enabled = smp_cores;
 584     t->thread_count = smp_threads;
 585     t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
 586     t->processor_family2 = cpu_to_le16(0x01); /* Other */
 587
 588     SMBIOS_BUILD_TABLE_POST;
 589     smbios_type4_count++;
 590 }
 591
 592 #define ONE_KB ((ram_addr_t)1 << 10)
 593 #define ONE_MB ((ram_addr_t)1 << 20)
 594 #define ONE_GB ((ram_addr_t)1 << 30)
 595
 596 #define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
 597
 598 static void smbios_build_type_16_table(unsigned dimm_cnt)
 599 {
 600     uint64_t size_kb;
 601
 602     SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
 603
 604     t->location = 0x01; /* Other */
 605     t->use = 0x03; /* System memory */
 606     t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
 607     size_kb = QEMU_ALIGN_UP(ram_size, ONE_KB) / ONE_KB;
 608     if (size_kb < MAX_T16_STD_SZ) {
 609         t->maximum_capacity = cpu_to_le32(size_kb);
 610         t->extended_maximum_capacity = cpu_to_le64(0);
 611     } else {
 612         t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
 613         t->extended_maximum_capacity = cpu_to_le64(ram_size);
 614     }
 615     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 616     t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
 617
 618     SMBIOS_BUILD_TABLE_POST;
 619 }
 620
 621 #define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
 622 #define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
 623
 624 static void smbios_build_type_17_table(unsigned instance, uint64_t size)
 625 {
 626     char loc_str[128];
 627     uint64_t size_mb;
 628
 629     SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
 630
 631     t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 632     t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
 633     t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
 634     t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
 635     size_mb = QEMU_ALIGN_UP(size, ONE_MB) / ONE_MB;
 636     if (size_mb < MAX_T17_STD_SZ) {
 637         t->size = cpu_to_le16(size_mb);
 638         t->extended_size = cpu_to_le32(0);
 639     } else {
 640         assert(size_mb < MAX_T17_EXT_SZ);
 641         t->size = cpu_to_le16(MAX_T17_STD_SZ);
 642         t->extended_size = cpu_to_le32(size_mb);
 643     }
 644     t->form_factor = 0x09; /* DIMM */
 645     t->device_set = 0; /* Not in a set */
 646     snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
 647     SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
 648     SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
 649     t->memory_type = 0x07; /* RAM */
 650     t->type_detail = cpu_to_le16(0x02); /* Other */
 651     t->speed = cpu_to_le16(type17.speed);
 652     SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
 653     SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
 654     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
 655     SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
 656     t->attributes = 0; /* Unknown */
 657     t->configured_clock_speed = t->speed; /* reuse value for max speed */
 658     t->minimum_voltage = cpu_to_le16(0); /* Unknown */
 659     t->maximum_voltage = cpu_to_le16(0); /* Unknown */
 660     t->configured_voltage = cpu_to_le16(0); /* Unknown */
 661
 662     SMBIOS_BUILD_TABLE_POST;
 663 }
 664
 665 static void smbios_build_type_19_table(unsigned instance,
 666                                        uint64_t start, uint64_t size)
 667 {
 668     uint64_t end, start_kb, end_kb;
 669
 670     SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
 671
 672     end = start + size - 1;
 673     assert(end > start);
 674     start_kb = start / ONE_KB;
 675     end_kb = end / ONE_KB;
 676     if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
 677         t->starting_address = cpu_to_le32(start_kb);
 678         t->ending_address = cpu_to_le32(end_kb);
 679         t->extended_starting_address =
 680             t->extended_ending_address = cpu_to_le64(0);
 681     } else {
 682         t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
 683         t->extended_starting_address = cpu_to_le64(start);
 684         t->extended_ending_address = cpu_to_le64(end);
 685     }
 686     t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
 687     t->partition_width = 1; /* One device per row */
 688
 689     SMBIOS_BUILD_TABLE_POST;
 690 }
 691
 692 static void smbios_build_type_32_table(void)
 693 {
 694     SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
 695
 696     memset(t->reserved, 0, 6);
 697     t->boot_status = 0; /* No errors detected */
 698
 699     SMBIOS_BUILD_TABLE_POST;
 700 }
 701
 702 static void smbios_build_type_127_table(void)
 703 {
 704     SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
 705     SMBIOS_BUILD_TABLE_POST;
 706 }
 707
 708 void smbios_set_cpuid(uint32_t version, uint32_t features)
 709 {
 710     smbios_cpuid_version = version;
 711     smbios_cpuid_features = features;
 712 }
 713
 714 #define SMBIOS_SET_DEFAULT(field, value)                                  \
 715     if (!field) {                                                         \
 716         field = value;                                                    \
 717     }
 718
 719 void smbios_set_defaults(const char *manufacturer, const char *product,
 720                          const char *version, bool legacy_mode,
 721                          bool uuid_encoded, SmbiosEntryPointType ep_type)
 722 {
 723     smbios_have_defaults = true;
 724     smbios_legacy = legacy_mode;
 725     smbios_uuid_encoded = uuid_encoded;
 726     smbios_ep_type = ep_type;
 727
 728     /* drop unwanted version of command-line file blob(s) */
 729     if (smbios_legacy) {
 730         g_free(smbios_tables);
 731         /* in legacy mode, also complain if fields were given for types > 1 */
 732         if (find_next_bit(have_fields_bitmap,
 733                           SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
 734             error_report("can't process fields for smbios "
 735                          "types > 1 on machine versions < 2.1!");
 736             exit(1);
 737         }
 738     } else {
 739         g_free(smbios_entries);
 740     }
 741
 742     SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
 743     SMBIOS_SET_DEFAULT(type1.product, product);
 744     SMBIOS_SET_DEFAULT(type1.version, version);
 745     SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
 746     SMBIOS_SET_DEFAULT(type2.product, product);
 747     SMBIOS_SET_DEFAULT(type2.version, version);
 748     SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
 749     SMBIOS_SET_DEFAULT(type3.version, version);
 750     SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
 751     SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
 752     SMBIOS_SET_DEFAULT(type4.version, version);
 753     SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
 754     SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
 755 }
 756
 757 static void smbios_entry_point_setup(void)
 758 {
 759     switch (smbios_ep_type) {
 760     case SMBIOS_ENTRY_POINT_21:
 761         memcpy(ep.ep21.anchor_string, "_SM_", 4);
 762         memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
 763         ep.ep21.length = sizeof(struct smbios_21_entry_point);
 764         ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
 765         memset(ep.ep21.formatted_area, 0, 5);
 766
 767         /* compliant with smbios spec v2.8 */
 768         ep.ep21.smbios_major_version = 2;
 769         ep.ep21.smbios_minor_version = 8;
 770         ep.ep21.smbios_bcd_revision = 0x28;
 771
 772         /* set during table construction, but BIOS may override: */
 773         ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
 774         ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
 775         ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
 776
 777         /* BIOS must recalculate */
 778         ep.ep21.checksum = 0;
 779         ep.ep21.intermediate_checksum = 0;
 780         ep.ep21.structure_table_address = cpu_to_le32(0);
 781
 782         break;
 783     case SMBIOS_ENTRY_POINT_30:
 784         memcpy(ep.ep30.anchor_string, "_SM3_", 5);
 785         ep.ep30.length = sizeof(struct smbios_30_entry_point);
 786         ep.ep30.entry_point_revision = 1;
 787         ep.ep30.reserved = 0;
 788
 789         /* compliant with smbios spec 3.0 */
 790         ep.ep30.smbios_major_version = 3;
 791         ep.ep30.smbios_minor_version = 0;
 792         ep.ep30.smbios_doc_rev = 0;
 793
 794         /* set during table construct, but BIOS might override */
 795         ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
 796
 797         /* BIOS must recalculate */
 798         ep.ep30.checksum = 0;
 799         ep.ep30.structure_table_address = cpu_to_le64(0);
 800
 801         break;
 802     default:
 803         abort();
 804         break;
 805     }
 806 }
 807
 808 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
 809                        const unsigned int mem_array_size,
 810                        uint8_t **tables, size_t *tables_len,
 811                        uint8_t **anchor, size_t *anchor_len)
 812 {
 813     unsigned i, dimm_cnt;
 814
 815     if (smbios_legacy) {
 816         *tables = *anchor = NULL;
 817         *tables_len = *anchor_len = 0;
 818         return;
 819     }
 820
 821     if (!smbios_immutable) {
 822         smbios_build_type_0_table();
 823         smbios_build_type_1_table();
 824         smbios_build_type_2_table();
 825         smbios_build_type_3_table();
 826
 827         smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
 828         assert(smbios_smp_sockets >= 1);
 829
 830         for (i = 0; i < smbios_smp_sockets; i++) {
 831             smbios_build_type_4_table(i);
 832         }
 833
 834 #define MAX_DIMM_SZ (16ll * ONE_GB)
 835 #define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
 836                                         : ((ram_size - 1) % MAX_DIMM_SZ) + 1)
 837
 838         dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
 839
 840         smbios_build_type_16_table(dimm_cnt);
 841
 842         for (i = 0; i < dimm_cnt; i++) {
 843             smbios_build_type_17_table(i, GET_DIMM_SZ);
 844         }
 845
 846         for (i = 0; i < mem_array_size; i++) {
 847             smbios_build_type_19_table(i, mem_array[i].address,
 848                                        mem_array[i].length);
 849         }
 850
 851         smbios_build_type_32_table();
 852         smbios_build_type_38_table();
 853         smbios_build_type_127_table();
 854
 855         smbios_validate_table();
 856         smbios_entry_point_setup();
 857         smbios_immutable = true;
 858     }
 859
 860     /* return tables blob and entry point (anchor), and their sizes */
 861     *tables = smbios_tables;
 862     *tables_len = smbios_tables_len;
 863     *anchor = (uint8_t *)&ep;
 864
 865     /* calculate length based on anchor string */
 866     if (!strncmp((char *)&ep, "_SM_", 4)) {
 867         *anchor_len = sizeof(struct smbios_21_entry_point);
 868     } else if (!strncmp((char *)&ep, "_SM3_", 5)) {
 869         *anchor_len = sizeof(struct smbios_30_entry_point);
 870     } else {
 871         abort();
 872     }
 873 }
 874
 875 static void save_opt(const char **dest, QemuOpts *opts, const char *name)
 876 {
 877     const char *val = qemu_opt_get(opts, name);
 878
 879     if (val) {
 880         *dest = val;
 881     }
 882 }
 883
 884 void smbios_entry_add(QemuOpts *opts)
 885 {
 886     const char *val;
 887
 888     assert(!smbios_immutable);
 889
 890     val = qemu_opt_get(opts, "file");
 891     if (val) {
 892         struct smbios_structure_header *header;
 893         int size;
 894         struct smbios_table *table; /* legacy mode only */
 895
 896         qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal);
 897
 898         size = get_image_size(val);
 899         if (size == -1 || size < sizeof(struct smbios_structure_header)) {
 900             error_report("Cannot read SMBIOS file %s", val);
 901             exit(1);
 902         }
 903
 904         /*
 905          * NOTE: standard double '\0' terminator expected, per smbios spec.
 906          * (except in legacy mode, where the second '\0' is implicit and
 907          *  will be inserted by the BIOS).
 908          */
 909         smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
 910         header = (struct smbios_structure_header *)(smbios_tables +
 911                                                     smbios_tables_len);
 912
 913         if (load_image(val, (uint8_t *)header) != size) {
 914             error_report("Failed to load SMBIOS file %s", val);
 915             exit(1);
 916         }
 917
 918         if (test_bit(header->type, have_fields_bitmap)) {
 919             error_report("can't load type %d struct, fields already specified!",
 920                          header->type);
 921             exit(1);
 922         }
 923         set_bit(header->type, have_binfile_bitmap);
 924
 925         if (header->type == 4) {
 926             smbios_type4_count++;
 927         }
 928
 929         smbios_tables_len += size;
 930         if (size > smbios_table_max) {
 931             smbios_table_max = size;
 932         }
 933         smbios_table_cnt++;
 934
 935         /* add a copy of the newly loaded blob to legacy smbios_entries */
 936         /* NOTE: This code runs before smbios_set_defaults(), so we don't
 937          *       yet know which mode (legacy vs. aggregate-table) will be
 938          *       required. We therefore add the binary blob to both legacy
 939          *       (smbios_entries) and aggregate (smbios_tables) tables, and
 940          *       delete the one we don't need from smbios_set_defaults(),
 941          *       once we know which machine version has been requested.
 942          */
 943         if (!smbios_entries) {
 944             smbios_entries_len = sizeof(uint16_t);
 945             smbios_entries = g_malloc0(smbios_entries_len);
 946         }
 947         smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
 948                                                    size + sizeof(*table));
 949         table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
 950         table->header.type = SMBIOS_TABLE_ENTRY;
 951         table->header.length = cpu_to_le16(sizeof(*table) + size);
 952         memcpy(table->data, header, size);
 953         smbios_entries_len += sizeof(*table) + size;
 954         (*(uint16_t *)smbios_entries) =
 955                 cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
 956         /* end: add a copy of the newly loaded blob to legacy smbios_entries */
 957
 958         return;
 959     }
 960
 961     val = qemu_opt_get(opts, "type");
 962     if (val) {
 963         unsigned long type = strtoul(val, NULL, 0);
 964
 965         if (type > SMBIOS_MAX_TYPE) {
 966             error_report("out of range!");
 967             exit(1);
 968         }
 969
 970         if (test_bit(type, have_binfile_bitmap)) {
 971             error_report("can't add fields, binary file already loaded!");
 972             exit(1);
 973         }
 974         set_bit(type, have_fields_bitmap);
 975
 976         switch (type) {
 977         case 0:
 978             qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal);
 979             save_opt(&type0.vendor, opts, "vendor");
 980             save_opt(&type0.version, opts, "version");
 981             save_opt(&type0.date, opts, "date");
 982             type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
 983
 984             val = qemu_opt_get(opts, "release");
 985             if (val) {
 986                 if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
 987                     error_report("Invalid release");
 988                     exit(1);
 989                 }
 990                 type0.have_major_minor = true;
 991             }
 992             return;
 993         case 1:
 994             qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal);
 995             save_opt(&type1.manufacturer, opts, "manufacturer");
 996             save_opt(&type1.product, opts, "product");
 997             save_opt(&type1.version, opts, "version");
 998             save_opt(&type1.serial, opts, "serial");
 999             save_opt(&type1.sku, opts, "sku");
1000             save_opt(&type1.family, opts, "family");
1001
1002             val = qemu_opt_get(opts, "uuid");
1003             if (val) {
1004                 if (qemu_uuid_parse(val, qemu_uuid) != 0) {
1005                     error_report("Invalid UUID");
1006                     exit(1);
1007                 }
1008                 qemu_uuid_set = true;
1009             }
1010             return;
1011         case 2:
1012             qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal);
1013             save_opt(&type2.manufacturer, opts, "manufacturer");
1014             save_opt(&type2.product, opts, "product");
1015             save_opt(&type2.version, opts, "version");
1016             save_opt(&type2.serial, opts, "serial");
1017             save_opt(&type2.asset, opts, "asset");
1018             save_opt(&type2.location, opts, "location");
1019             return;
1020         case 3:
1021             qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal);
1022             save_opt(&type3.manufacturer, opts, "manufacturer");
1023             save_opt(&type3.version, opts, "version");
1024             save_opt(&type3.serial, opts, "serial");
1025             save_opt(&type3.asset, opts, "asset");
1026             save_opt(&type3.sku, opts, "sku");
1027             return;
1028         case 4:
1029             qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal);
1030             save_opt(&type4.sock_pfx, opts, "sock_pfx");
1031             save_opt(&type4.manufacturer, opts, "manufacturer");
1032             save_opt(&type4.version, opts, "version");
1033             save_opt(&type4.serial, opts, "serial");
1034             save_opt(&type4.asset, opts, "asset");
1035             save_opt(&type4.part, opts, "part");
1036             return;
1037         case 17:
1038             qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal);
1039             save_opt(&type17.loc_pfx, opts, "loc_pfx");
1040             save_opt(&type17.bank, opts, "bank");
1041             save_opt(&type17.manufacturer, opts, "manufacturer");
1042             save_opt(&type17.serial, opts, "serial");
1043             save_opt(&type17.asset, opts, "asset");
1044             save_opt(&type17.part, opts, "part");
1045             type17.speed = qemu_opt_get_number(opts, "speed", 0);
1046             return;
1047         default:
1048             error_report("Don't know how to build fields for SMBIOS type %ld",
1049                          type);
1050             exit(1);
1051         }
1052     }
1053
1054     error_report("Must specify type= or file=");
1055     exit(1);
1056 }