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qemu/hw/i386/smbios.c
Eduardo Habkost 07d01c9c19 smbios: Don't report unknown CPU speed (fix SVVP regression) 
SVVP requires processor speed on Type 4 structures to not be unknown.
This was fixed in SeaBIOS 0.5.0 (in 2009), but the bug was reintroduced
in QEMU 2.1.

Revert to old behavior and report CPU speed as 2000 MHz instead of
unknown.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-27 14:46:17 +02:00

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/*
* SMBIOS Support
*
* Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
* Copyright (C) 2013 Red Hat, Inc.
*
* Authors:
* Alex Williamson <alex.williamson@hp.com>
* Markus Armbruster <armbru@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/config-file.h"
#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
#include "sysemu/cpus.h"
#include "hw/i386/pc.h"
#include "hw/i386/smbios.h"
#include "hw/loader.h"
/* legacy structures and constants for <= 2.0 machines */
struct smbios_header {
uint16_t length;
uint8_t type;
} QEMU_PACKED;
struct smbios_field {
struct smbios_header header;
uint8_t type;
uint16_t offset;
uint8_t data[];
} QEMU_PACKED;
struct smbios_table {
struct smbios_header header;
uint8_t data[];
} QEMU_PACKED;
#define SMBIOS_FIELD_ENTRY 0
#define SMBIOS_TABLE_ENTRY 1
static uint8_t *smbios_entries;
static size_t smbios_entries_len;
static bool smbios_legacy = true;
static bool smbios_uuid_encoded = true;
/* end: legacy structures & constants for <= 2.0 machines */
static uint8_t *smbios_tables;
static size_t smbios_tables_len;
static unsigned smbios_table_max;
static unsigned smbios_table_cnt;
static struct smbios_entry_point ep;
static int smbios_type4_count = 0;
static bool smbios_immutable;
static bool smbios_have_defaults;
static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
static struct {
const char *vendor, *version, *date;
bool have_major_minor, uefi;
uint8_t major, minor;
} type0;
static struct {
const char *manufacturer, *product, *version, *serial, *sku, *family;
/* uuid is in qemu_uuid[] */
} type1;
static struct {
const char *manufacturer, *product, *version, *serial, *asset, *location;
} type2;
static struct {
const char *manufacturer, *version, *serial, *asset, *sku;
} type3;
static struct {
const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
} type4;
static struct {
const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
} type17;
static QemuOptsList qemu_smbios_opts = {
.name = "smbios",
.head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
.desc = {
/*
* no elements => accept any params
* validation will happen later
*/
{ /* end of list */ }
}
};
static const QemuOptDesc qemu_smbios_file_opts[] = {
{
.name = "file",
.type = QEMU_OPT_STRING,
.help = "binary file containing an SMBIOS element",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type0_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "vendor",
.type = QEMU_OPT_STRING,
.help = "vendor name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "date",
.type = QEMU_OPT_STRING,
.help = "release date",
},{
.name = "release",
.type = QEMU_OPT_STRING,
.help = "revision number",
},{
.name = "uefi",
.type = QEMU_OPT_BOOL,
.help = "uefi support",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type1_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "product",
.type = QEMU_OPT_STRING,
.help = "product name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "uuid",
.type = QEMU_OPT_STRING,
.help = "UUID",
},{
.name = "sku",
.type = QEMU_OPT_STRING,
.help = "SKU number",
},{
.name = "family",
.type = QEMU_OPT_STRING,
.help = "family name",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type2_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "product",
.type = QEMU_OPT_STRING,
.help = "product name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "location",
.type = QEMU_OPT_STRING,
.help = "location in chassis",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type3_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "sku",
.type = QEMU_OPT_STRING,
.help = "SKU number",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type4_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "sock_pfx",
.type = QEMU_OPT_STRING,
.help = "socket designation string prefix",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "part",
.type = QEMU_OPT_STRING,
.help = "part number",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type17_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "loc_pfx",
.type = QEMU_OPT_STRING,
.help = "device locator string prefix",
},{
.name = "bank",
.type = QEMU_OPT_STRING,
.help = "bank locator string",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "part",
.type = QEMU_OPT_STRING,
.help = "part number",
},
{ /* end of list */ }
};
static void smbios_register_config(void)
{
qemu_add_opts(&qemu_smbios_opts);
}
machine_init(smbios_register_config);
static void smbios_validate_table(void)
{
uint32_t expect_t4_count = smbios_legacy ? smp_cpus : smbios_smp_sockets;
if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
expect_t4_count, smbios_type4_count);
exit(1);
}
}
/* legacy setup functions for <= 2.0 machines */
static void smbios_add_field(int type, int offset, const void *data, size_t len)
{
struct smbios_field *field;
if (!smbios_entries) {
smbios_entries_len = sizeof(uint16_t);
smbios_entries = g_malloc0(smbios_entries_len);
}
smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
sizeof(*field) + len);
field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
field->header.type = SMBIOS_FIELD_ENTRY;
field->header.length = cpu_to_le16(sizeof(*field) + len);
field->type = type;
field->offset = cpu_to_le16(offset);
memcpy(field->data, data, len);
smbios_entries_len += sizeof(*field) + len;
(*(uint16_t *)smbios_entries) =
cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
}
static void smbios_maybe_add_str(int type, int offset, const char *data)
{
if (data) {
smbios_add_field(type, offset, data, strlen(data) + 1);
}
}
static void smbios_build_type_0_fields(void)
{
smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
type0.vendor);
smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
type0.version);
smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
bios_release_date_str),
type0.date);
if (type0.have_major_minor) {
smbios_add_field(0, offsetof(struct smbios_type_0,
system_bios_major_release),
&type0.major, 1);
smbios_add_field(0, offsetof(struct smbios_type_0,
system_bios_minor_release),
&type0.minor, 1);
}
}
static void smbios_build_type_1_fields(void)
{
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
type1.manufacturer);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
type1.product);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
type1.version);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
type1.serial);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
type1.sku);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
type1.family);
if (qemu_uuid_set) {
/* We don't encode the UUID in the "wire format" here because this
* function is for legacy mode and needs to keep the guest ABI, and
* because we don't know what's the SMBIOS version advertised by the
* BIOS.
*/
smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
qemu_uuid, 16);
}
}
uint8_t *smbios_get_table_legacy(size_t *length)
{
if (!smbios_legacy) {
*length = 0;
return NULL;
}
if (!smbios_immutable) {
smbios_build_type_0_fields();
smbios_build_type_1_fields();
smbios_validate_table();
smbios_immutable = true;
}
*length = smbios_entries_len;
return smbios_entries;
}
/* end: legacy setup functions for <= 2.0 machines */
static bool smbios_skip_table(uint8_t type, bool required_table)
{
if (test_bit(type, have_binfile_bitmap)) {
return true; /* user provided their own binary blob(s) */
}
if (test_bit(type, have_fields_bitmap)) {
return false; /* user provided fields via command line */
}
if (smbios_have_defaults && required_table) {
return false; /* we're building tables, and this one's required */
}
return true;
}
#define SMBIOS_BUILD_TABLE_PRE(tbl_type, tbl_handle, tbl_required) \
struct smbios_type_##tbl_type *t; \
size_t t_off; /* table offset into smbios_tables */ \
int str_index = 0; \
do { \
/* should we skip building this table ? */ \
if (smbios_skip_table(tbl_type, tbl_required)) { \
return; \
} \
\
/* use offset of table t within smbios_tables */ \
/* (pointer must be updated after each realloc) */ \
t_off = smbios_tables_len; \
smbios_tables_len += sizeof(*t); \
smbios_tables = g_realloc(smbios_tables, smbios_tables_len); \
t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \
\
t->header.type = tbl_type; \
t->header.length = sizeof(*t); \
t->header.handle = cpu_to_le16(tbl_handle); \
} while (0)
#define SMBIOS_TABLE_SET_STR(tbl_type, field, value) \
do { \
int len = (value != NULL) ? strlen(value) + 1 : 0; \
if (len > 1) { \
smbios_tables = g_realloc(smbios_tables, \
smbios_tables_len + len); \
memcpy(smbios_tables + smbios_tables_len, value, len); \
smbios_tables_len += len; \
/* update pointer post-realloc */ \
t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \
t->field = ++str_index; \
} else { \
t->field = 0; \
} \
} while (0)
#define SMBIOS_BUILD_TABLE_POST \
do { \
size_t term_cnt, t_size; \
\
/* add '\0' terminator (add two if no strings defined) */ \
term_cnt = (str_index == 0) ? 2 : 1; \
smbios_tables = g_realloc(smbios_tables, \
smbios_tables_len + term_cnt); \
memset(smbios_tables + smbios_tables_len, 0, term_cnt); \
smbios_tables_len += term_cnt; \
\
/* update smbios max. element size */ \
t_size = smbios_tables_len - t_off; \
if (t_size > smbios_table_max) { \
smbios_table_max = t_size; \
} \
\
/* update smbios element count */ \
smbios_table_cnt++; \
} while (0)
static void smbios_build_type_0_table(void)
{
SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
t->bios_characteristics_extension_bytes[0] = 0;
t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
if (type0.uefi) {
t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
}
if (type0.have_major_minor) {
t->system_bios_major_release = type0.major;
t->system_bios_minor_release = type0.minor;
} else {
t->system_bios_major_release = 0;
t->system_bios_minor_release = 0;
}
/* hardcoded in SeaBIOS */
t->embedded_controller_major_release = 0xFF;
t->embedded_controller_minor_release = 0xFF;
SMBIOS_BUILD_TABLE_POST;
}
/* Encode UUID from the big endian encoding described on RFC4122 to the wire
* format specified by SMBIOS version 2.6.
*/
static void smbios_encode_uuid(struct smbios_uuid *uuid, const uint8_t *buf)
{
memcpy(uuid, buf, 16);
if (smbios_uuid_encoded) {
uuid->time_low = bswap32(uuid->time_low);
uuid->time_mid = bswap16(uuid->time_mid);
uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
}
}
static void smbios_build_type_1_table(void)
{
SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
if (qemu_uuid_set) {
smbios_encode_uuid(&t->uuid, qemu_uuid);
} else {
memset(&t->uuid, 0, 16);
}
t->wake_up_type = 0x06; /* power switch */
SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_2_table(void)
{
SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
t->feature_flags = 0x01; /* Motherboard */
SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
t->board_type = 0x0A; /* Motherboard */
t->contained_element_count = 0;
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_3_table(void)
{
SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
t->type = 0x01; /* Other */
SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
t->boot_up_state = 0x03; /* Safe */
t->power_supply_state = 0x03; /* Safe */
t->thermal_state = 0x03; /* Safe */
t->security_status = 0x02; /* Unknown */
t->oem_defined = cpu_to_le32(0);
t->height = 0;
t->number_of_power_cords = 0;
t->contained_element_count = 0;
SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_4_table(unsigned instance)
{
char sock_str[128];
SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
t->processor_type = 0x03; /* CPU */
t->processor_family = 0x01; /* Other */
SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
t->voltage = 0;
t->external_clock = cpu_to_le16(0); /* Unknown */
/* SVVP requires max_speed and current_speed to not be unknown. */
t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
t->status = 0x41; /* Socket populated, CPU enabled */
t->processor_upgrade = 0x01; /* Other */
t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
t->core_count = t->core_enabled = smp_cores;
t->thread_count = smp_threads;
t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
t->processor_family2 = cpu_to_le16(0x01); /* Other */
SMBIOS_BUILD_TABLE_POST;
smbios_type4_count++;
}
#define ONE_KB ((ram_addr_t)1 << 10)
#define ONE_MB ((ram_addr_t)1 << 20)
#define ONE_GB ((ram_addr_t)1 << 30)
#define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
static void smbios_build_type_16_table(unsigned dimm_cnt)
{
uint64_t size_kb;
SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
t->location = 0x01; /* Other */
t->use = 0x03; /* System memory */
t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
size_kb = QEMU_ALIGN_UP(ram_size, ONE_KB) / ONE_KB;
if (size_kb < MAX_T16_STD_SZ) {
t->maximum_capacity = cpu_to_le32(size_kb);
t->extended_maximum_capacity = cpu_to_le64(0);
} else {
t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
t->extended_maximum_capacity = cpu_to_le64(ram_size);
}
t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
SMBIOS_BUILD_TABLE_POST;
}
#define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
#define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
static void smbios_build_type_17_table(unsigned instance, uint64_t size)
{
char loc_str[128];
uint64_t size_mb;
SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
size_mb = QEMU_ALIGN_UP(size, ONE_MB) / ONE_MB;
if (size_mb < MAX_T17_STD_SZ) {
t->size = cpu_to_le16(size_mb);
t->extended_size = cpu_to_le32(0);
} else {
assert(size_mb < MAX_T17_EXT_SZ);
t->size = cpu_to_le16(MAX_T17_STD_SZ);
t->extended_size = cpu_to_le32(size_mb);
}
t->form_factor = 0x09; /* DIMM */
t->device_set = 0; /* Not in a set */
snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
t->memory_type = 0x07; /* RAM */
t->type_detail = cpu_to_le16(0x02); /* Other */
t->speed = cpu_to_le16(0); /* Unknown */
SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
t->attributes = 0; /* Unknown */
t->configured_clock_speed = cpu_to_le16(0); /* Unknown */
t->minimum_voltage = cpu_to_le16(0); /* Unknown */
t->maximum_voltage = cpu_to_le16(0); /* Unknown */
t->configured_voltage = cpu_to_le16(0); /* Unknown */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_19_table(unsigned instance,
uint64_t start, uint64_t size)
{
uint64_t end, start_kb, end_kb;
SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
end = start + size - 1;
assert(end > start);
start_kb = start / ONE_KB;
end_kb = end / ONE_KB;
if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
t->starting_address = cpu_to_le32(start_kb);
t->ending_address = cpu_to_le32(end_kb);
t->extended_starting_address =
t->extended_ending_address = cpu_to_le64(0);
} else {
t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
t->extended_starting_address = cpu_to_le64(start);
t->extended_ending_address = cpu_to_le64(end);
}
t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
t->partition_width = 1; /* One device per row */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_32_table(void)
{
SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
memset(t->reserved, 0, 6);
t->boot_status = 0; /* No errors detected */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_127_table(void)
{
SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
SMBIOS_BUILD_TABLE_POST;
}
void smbios_set_cpuid(uint32_t version, uint32_t features)
{
smbios_cpuid_version = version;
smbios_cpuid_features = features;
}
#define SMBIOS_SET_DEFAULT(field, value) \
if (!field) { \
field = value; \
}
void smbios_set_defaults(const char *manufacturer, const char *product,
const char *version, bool legacy_mode,
bool uuid_encoded)
{
smbios_have_defaults = true;
smbios_legacy = legacy_mode;
smbios_uuid_encoded = uuid_encoded;
/* drop unwanted version of command-line file blob(s) */
if (smbios_legacy) {
g_free(smbios_tables);
/* in legacy mode, also complain if fields were given for types > 1 */
if (find_next_bit(have_fields_bitmap,
SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
error_report("can't process fields for smbios "
"types > 1 on machine versions < 2.1!");
exit(1);
}
} else {
g_free(smbios_entries);
}
SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type1.product, product);
SMBIOS_SET_DEFAULT(type1.version, version);
SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type2.product, product);
SMBIOS_SET_DEFAULT(type2.version, version);
SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type3.version, version);
SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type4.version, version);
SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
}
static void smbios_entry_point_setup(void)
{
memcpy(ep.anchor_string, "_SM_", 4);
memcpy(ep.intermediate_anchor_string, "_DMI_", 5);
ep.length = sizeof(struct smbios_entry_point);
ep.entry_point_revision = 0; /* formatted_area reserved, per spec v2.1+ */
memset(ep.formatted_area, 0, 5);
/* compliant with smbios spec v2.8 */
ep.smbios_major_version = 2;
ep.smbios_minor_version = 8;
ep.smbios_bcd_revision = 0x28;
/* set during table construction, but BIOS may override: */
ep.structure_table_length = cpu_to_le16(smbios_tables_len);
ep.max_structure_size = cpu_to_le16(smbios_table_max);
ep.number_of_structures = cpu_to_le16(smbios_table_cnt);
/* BIOS must recalculate: */
ep.checksum = 0;
ep.intermediate_checksum = 0;
ep.structure_table_address = cpu_to_le32(0);
}
void smbios_get_tables(uint8_t **tables, size_t *tables_len,
uint8_t **anchor, size_t *anchor_len)
{
unsigned i, dimm_cnt, instance;
if (smbios_legacy) {
*tables = *anchor = NULL;
*tables_len = *anchor_len = 0;
return;
}
if (!smbios_immutable) {
smbios_build_type_0_table();
smbios_build_type_1_table();
smbios_build_type_2_table();
smbios_build_type_3_table();
smbios_smp_sockets = DIV_ROUND_UP(smp_cpus, smp_cores * smp_threads);
assert(smbios_smp_sockets >= 1);
for (i = 0; i < smbios_smp_sockets; i++) {
smbios_build_type_4_table(i);
}
#define MAX_DIMM_SZ (16ll * ONE_GB)
#define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
: ((ram_size - 1) % MAX_DIMM_SZ) + 1)
dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
smbios_build_type_16_table(dimm_cnt);
for (i = 0; i < dimm_cnt; i++) {
smbios_build_type_17_table(i, GET_DIMM_SZ);
}
for (i = 0, instance = 0; i < e820_get_num_entries(); i++) {
uint64_t address, length;
if (e820_get_entry(i, E820_RAM, &address, &length)) {
smbios_build_type_19_table(instance++, address, length);
}
}
smbios_build_type_32_table();
smbios_build_type_127_table();
smbios_validate_table();
smbios_entry_point_setup();
smbios_immutable = true;
}
/* return tables blob and entry point (anchor), and their sizes */
*tables = smbios_tables;
*tables_len = smbios_tables_len;
*anchor = (uint8_t *)&ep;
*anchor_len = sizeof(struct smbios_entry_point);
}
static void save_opt(const char **dest, QemuOpts *opts, const char *name)
{
const char *val = qemu_opt_get(opts, name);
if (val) {
*dest = val;
}
}
void smbios_entry_add(QemuOpts *opts)
{
Error *local_err = NULL;
const char *val;
assert(!smbios_immutable);
val = qemu_opt_get(opts, "file");
if (val) {
struct smbios_structure_header *header;
int size;
struct smbios_table *table; /* legacy mode only */
qemu_opts_validate(opts, qemu_smbios_file_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
size = get_image_size(val);
if (size == -1 || size < sizeof(struct smbios_structure_header)) {
error_report("Cannot read SMBIOS file %s", val);
exit(1);
}
/*
* NOTE: standard double '\0' terminator expected, per smbios spec.
* (except in legacy mode, where the second '\0' is implicit and
* will be inserted by the BIOS).
*/
smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
header = (struct smbios_structure_header *)(smbios_tables +
smbios_tables_len);
if (load_image(val, (uint8_t *)header) != size) {
error_report("Failed to load SMBIOS file %s", val);
exit(1);
}
if (test_bit(header->type, have_fields_bitmap)) {
error_report("can't load type %d struct, fields already specified!",
header->type);
exit(1);
}
set_bit(header->type, have_binfile_bitmap);
if (header->type == 4) {
smbios_type4_count++;
}
smbios_tables_len += size;
if (size > smbios_table_max) {
smbios_table_max = size;
}
smbios_table_cnt++;
/* add a copy of the newly loaded blob to legacy smbios_entries */
/* NOTE: This code runs before smbios_set_defaults(), so we don't
* yet know which mode (legacy vs. aggregate-table) will be
* required. We therefore add the binary blob to both legacy
* (smbios_entries) and aggregate (smbios_tables) tables, and
* delete the one we don't need from smbios_set_defaults(),
* once we know which machine version has been requested.
*/
if (!smbios_entries) {
smbios_entries_len = sizeof(uint16_t);
smbios_entries = g_malloc0(smbios_entries_len);
}
smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
size + sizeof(*table));
table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
table->header.type = SMBIOS_TABLE_ENTRY;
table->header.length = cpu_to_le16(sizeof(*table) + size);
memcpy(table->data, header, size);
smbios_entries_len += sizeof(*table) + size;
(*(uint16_t *)smbios_entries) =
cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
/* end: add a copy of the newly loaded blob to legacy smbios_entries */
return;
}
val = qemu_opt_get(opts, "type");
if (val) {
unsigned long type = strtoul(val, NULL, 0);
if (type > SMBIOS_MAX_TYPE) {
error_report("out of range!");
exit(1);
}
if (test_bit(type, have_binfile_bitmap)) {
error_report("can't add fields, binary file already loaded!");
exit(1);
}
set_bit(type, have_fields_bitmap);
switch (type) {
case 0:
qemu_opts_validate(opts, qemu_smbios_type0_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type0.vendor, opts, "vendor");
save_opt(&type0.version, opts, "version");
save_opt(&type0.date, opts, "date");
type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
val = qemu_opt_get(opts, "release");
if (val) {
if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
error_report("Invalid release");
exit(1);
}
type0.have_major_minor = true;
}
return;
case 1:
qemu_opts_validate(opts, qemu_smbios_type1_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type1.manufacturer, opts, "manufacturer");
save_opt(&type1.product, opts, "product");
save_opt(&type1.version, opts, "version");
save_opt(&type1.serial, opts, "serial");
save_opt(&type1.sku, opts, "sku");
save_opt(&type1.family, opts, "family");
val = qemu_opt_get(opts, "uuid");
if (val) {
if (qemu_uuid_parse(val, qemu_uuid) != 0) {
error_report("Invalid UUID");
exit(1);
}
qemu_uuid_set = true;
}
return;
case 2:
qemu_opts_validate(opts, qemu_smbios_type2_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type2.manufacturer, opts, "manufacturer");
save_opt(&type2.product, opts, "product");
save_opt(&type2.version, opts, "version");
save_opt(&type2.serial, opts, "serial");
save_opt(&type2.asset, opts, "asset");
save_opt(&type2.location, opts, "location");
return;
case 3:
qemu_opts_validate(opts, qemu_smbios_type3_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type3.manufacturer, opts, "manufacturer");
save_opt(&type3.version, opts, "version");
save_opt(&type3.serial, opts, "serial");
save_opt(&type3.asset, opts, "asset");
save_opt(&type3.sku, opts, "sku");
return;
case 4:
qemu_opts_validate(opts, qemu_smbios_type4_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type4.sock_pfx, opts, "sock_pfx");
save_opt(&type4.manufacturer, opts, "manufacturer");
save_opt(&type4.version, opts, "version");
save_opt(&type4.serial, opts, "serial");
save_opt(&type4.asset, opts, "asset");
save_opt(&type4.part, opts, "part");
return;
case 17:
qemu_opts_validate(opts, qemu_smbios_type17_opts, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
exit(1);
}
save_opt(&type17.loc_pfx, opts, "loc_pfx");
save_opt(&type17.bank, opts, "bank");
save_opt(&type17.manufacturer, opts, "manufacturer");
save_opt(&type17.serial, opts, "serial");
save_opt(&type17.asset, opts, "asset");
save_opt(&type17.part, opts, "part");
return;
default:
error_report("Don't know how to build fields for SMBIOS type %ld",
type);
exit(1);
}
}
error_report("Must specify type= or file=");
exit(1);
}
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