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qemu/include/hw/i386/smbios.h
Eduardo Habkost caad057bb6 smbios: Encode UUID according to SMBIOS specification 
Differently from older versions, SMBIOS version 2.6 is explicit about
the encoding of UUID fields:

> Although RFC 4122 recommends network byte order for all fields, the PC
> industry (including the ACPI, UEFI, and Microsoft specifications) has
> consistently used little-endian byte encoding for the first three fields:
> time_low, time_mid, time_hi_and_version. The same encoding, also known as
> wire format, should also be used for the SMBIOS representation of the UUID.
>
> The UUID {00112233-4455-6677-8899-AABBCCDDEEFF} would thus be represented
> as 33 22 11 00 55 44 77 66 88 99 AA BB CC DD EE FF.

The dmidecode tool implements this and decodes the above "wire format"
when SMBIOS version >= 2.6. We moved from SMBIOS version 2.4 to 2.8 when
we started building the SMBIOS entry point inside QEMU, on commit
c97294ec1b.

Change smbios_build_type_1_table() to encode the UUID as specified.

To make sure we won't change the guest-visible UUID when upgrading to a
newer QEMU version, keep the old behavior on pc-*-2.1 and older.

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>
2014-11-02 13:44:52 +02:00

228 lines
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#ifndef QEMU_SMBIOS_H
#define QEMU_SMBIOS_H
/*
* SMBIOS Support
*
* Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
*
* Authors:
* Alex Williamson <alex.williamson@hp.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#include "qemu/option.h"
#define SMBIOS_MAX_TYPE 127
void smbios_entry_add(QemuOpts *opts);
void smbios_set_cpuid(uint32_t version, uint32_t features);
void smbios_set_defaults(const char *manufacturer, const char *product,
const char *version, bool legacy_mode,
bool uuid_encoded);
uint8_t *smbios_get_table_legacy(size_t *length);
void smbios_get_tables(uint8_t **tables, size_t *tables_len,
uint8_t **anchor, size_t *anchor_len);
/*
* SMBIOS spec defined tables
*/
/* SMBIOS entry point (anchor).
* BIOS must place this at a 16-bit-aligned address between 0xf0000 and 0xfffff.
*/
struct smbios_entry_point {
uint8_t anchor_string[4];
uint8_t checksum;
uint8_t length;
uint8_t smbios_major_version;
uint8_t smbios_minor_version;
uint16_t max_structure_size;
uint8_t entry_point_revision;
uint8_t formatted_area[5];
uint8_t intermediate_anchor_string[5];
uint8_t intermediate_checksum;
uint16_t structure_table_length;
uint32_t structure_table_address;
uint16_t number_of_structures;
uint8_t smbios_bcd_revision;
} QEMU_PACKED;
/* This goes at the beginning of every SMBIOS structure. */
struct smbios_structure_header {
uint8_t type;
uint8_t length;
uint16_t handle;
} QEMU_PACKED;
/* SMBIOS type 0 - BIOS Information */
struct smbios_type_0 {
struct smbios_structure_header header;
uint8_t vendor_str;
uint8_t bios_version_str;
uint16_t bios_starting_address_segment;
uint8_t bios_release_date_str;
uint8_t bios_rom_size;
uint64_t bios_characteristics;
uint8_t bios_characteristics_extension_bytes[2];
uint8_t system_bios_major_release;
uint8_t system_bios_minor_release;
uint8_t embedded_controller_major_release;
uint8_t embedded_controller_minor_release;
} QEMU_PACKED;
/* UUID encoding. The time_* fields are little-endian, as specified by SMBIOS
* version 2.6.
*/
struct smbios_uuid {
uint32_t time_low;
uint16_t time_mid;
uint16_t time_hi_and_version;
uint8_t clock_seq_hi_and_reserved;
uint8_t clock_seq_low;
uint8_t node[6];
} QEMU_PACKED;
/* SMBIOS type 1 - System Information */
struct smbios_type_1 {
struct smbios_structure_header header;
uint8_t manufacturer_str;
uint8_t product_name_str;
uint8_t version_str;
uint8_t serial_number_str;
struct smbios_uuid uuid;
uint8_t wake_up_type;
uint8_t sku_number_str;
uint8_t family_str;
} QEMU_PACKED;
/* SMBIOS type 2 - Base Board */
struct smbios_type_2 {
struct smbios_structure_header header;
uint8_t manufacturer_str;
uint8_t product_str;
uint8_t version_str;
uint8_t serial_number_str;
uint8_t asset_tag_number_str;
uint8_t feature_flags;
uint8_t location_str;
uint16_t chassis_handle;
uint8_t board_type;
uint8_t contained_element_count;
/* contained elements follow */
} QEMU_PACKED;
/* SMBIOS type 3 - System Enclosure (v2.7) */
struct smbios_type_3 {
struct smbios_structure_header header;
uint8_t manufacturer_str;
uint8_t type;
uint8_t version_str;
uint8_t serial_number_str;
uint8_t asset_tag_number_str;
uint8_t boot_up_state;
uint8_t power_supply_state;
uint8_t thermal_state;
uint8_t security_status;
uint32_t oem_defined;
uint8_t height;
uint8_t number_of_power_cords;
uint8_t contained_element_count;
uint8_t sku_number_str;
/* contained elements follow */
} QEMU_PACKED;
/* SMBIOS type 4 - Processor Information (v2.6) */
struct smbios_type_4 {
struct smbios_structure_header header;
uint8_t socket_designation_str;
uint8_t processor_type;
uint8_t processor_family;
uint8_t processor_manufacturer_str;
uint32_t processor_id[2];
uint8_t processor_version_str;
uint8_t voltage;
uint16_t external_clock;
uint16_t max_speed;
uint16_t current_speed;
uint8_t status;
uint8_t processor_upgrade;
uint16_t l1_cache_handle;
uint16_t l2_cache_handle;
uint16_t l3_cache_handle;
uint8_t serial_number_str;
uint8_t asset_tag_number_str;
uint8_t part_number_str;
uint8_t core_count;
uint8_t core_enabled;
uint8_t thread_count;
uint16_t processor_characteristics;
uint16_t processor_family2;
} QEMU_PACKED;
/* SMBIOS type 16 - Physical Memory Array (v2.7) */
struct smbios_type_16 {
struct smbios_structure_header header;
uint8_t location;
uint8_t use;
uint8_t error_correction;
uint32_t maximum_capacity;
uint16_t memory_error_information_handle;
uint16_t number_of_memory_devices;
uint64_t extended_maximum_capacity;
} QEMU_PACKED;
/* SMBIOS type 17 - Memory Device (v2.8) */
struct smbios_type_17 {
struct smbios_structure_header header;
uint16_t physical_memory_array_handle;
uint16_t memory_error_information_handle;
uint16_t total_width;
uint16_t data_width;
uint16_t size;
uint8_t form_factor;
uint8_t device_set;
uint8_t device_locator_str;
uint8_t bank_locator_str;
uint8_t memory_type;
uint16_t type_detail;
uint16_t speed;
uint8_t manufacturer_str;
uint8_t serial_number_str;
uint8_t asset_tag_number_str;
uint8_t part_number_str;
uint8_t attributes;
uint32_t extended_size;
uint16_t configured_clock_speed;
uint16_t minimum_voltage;
uint16_t maximum_voltage;
uint16_t configured_voltage;
} QEMU_PACKED;
/* SMBIOS type 19 - Memory Array Mapped Address (v2.7) */
struct smbios_type_19 {
struct smbios_structure_header header;
uint32_t starting_address;
uint32_t ending_address;
uint16_t memory_array_handle;
uint8_t partition_width;
uint64_t extended_starting_address;
uint64_t extended_ending_address;
} QEMU_PACKED;
/* SMBIOS type 32 - System Boot Information */
struct smbios_type_32 {
struct smbios_structure_header header;
uint8_t reserved[6];
uint8_t boot_status;
} QEMU_PACKED;
/* SMBIOS type 127 -- End-of-table */
struct smbios_type_127 {
struct smbios_structure_header header;
} QEMU_PACKED;
#endif /*QEMU_SMBIOS_H */
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