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120 lines
4.4 KiB
C
120 lines
4.4 KiB
C
/** @file
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Guid & data structure used for EFI System Resource Table (ESRT)
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Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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GUIDs defined in UEFI 2.5 spec.
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**/
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#ifndef _SYSTEM_RESOURCE_TABLE_H__
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#define _SYSTEM_RESOURCE_TABLE_H__
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#define EFI_SYSTEM_RESOURCE_TABLE_GUID \
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{ \
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0xb122a263, 0x3661, 0x4f68, {0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80 } \
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}
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///
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/// Current Entry Version
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///
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#define EFI_SYSTEM_RESOURCE_TABLE_FIRMWARE_RESOURCE_VERSION 1
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///
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/// Firmware Type Definitions
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///
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#define ESRT_FW_TYPE_UNKNOWN 0x00000000
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#define ESRT_FW_TYPE_SYSTEMFIRMWARE 0x00000001
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#define ESRT_FW_TYPE_DEVICEFIRMWARE 0x00000002
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#define ESRT_FW_TYPE_UEFIDRIVER 0x00000003
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///
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/// Last Attempt Status Values
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///
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#define LAST_ATTEMPT_STATUS_SUCCESS 0x00000000
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#define LAST_ATTEMPT_STATUS_ERROR_UNSUCCESSFUL 0x00000001
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#define LAST_ATTEMPT_STATUS_ERROR_INSUFFICIENT_RESOURCES 0x00000002
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#define LAST_ATTEMPT_STATUS_ERROR_INCORRECT_VERSION 0x00000003
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#define LAST_ATTEMPT_STATUS_ERROR_INVALID_FORMAT 0x00000004
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#define LAST_ATTEMPT_STATUS_ERROR_AUTH_ERROR 0x00000005
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#define LAST_ATTEMPT_STATUS_ERROR_PWR_EVT_AC 0x00000006
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#define LAST_ATTEMPT_STATUS_ERROR_PWR_EVT_BATT 0x00000007
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typedef struct {
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///
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/// The firmware class field contains a GUID that identifies a firmware component
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/// that can be updated via UpdateCapsule(). This GUID must be unique within all
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/// entries of the ESRT.
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///
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EFI_GUID FwClass;
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///
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/// Identifies the type of firmware resource.
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///
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UINT32 FwType;
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///
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/// The firmware version field represents the current version of the firmware
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/// resource, value must always increase as a larger number represents a newer
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/// version.
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///
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UINT32 FwVersion;
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///
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/// The lowest firmware resource version to which a firmware resource can be
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/// rolled back for the given system/device. Generally this is used to protect
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/// against known and fixed security issues.
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///
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UINT32 LowestSupportedFwVersion;
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///
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/// The capsule flags field contains the CapsuleGuid flags (bits 0- 15) as defined
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/// in the EFI_CAPSULE_HEADER that will be set in the capsule header.
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///
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UINT32 CapsuleFlags;
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///
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/// The last attempt version field describes the last firmware version for which
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/// an update was attempted (uses the same format as Firmware Version).
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/// Last Attempt Version is updated each time an UpdateCapsule() is attempted for
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/// an ESRT entry and is preserved across reboots (non-volatile). However, in
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/// cases where the attempt version is not recorded due to limitations in the
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/// update process, the field shall set to zero after a failed update. Similarly,
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/// in the case of a removable device, this value is set to 0 in cases where the
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/// device has not been updated since being added to the system.
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///
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UINT32 LastAttemptVersion;
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///
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/// The last attempt status field describes the result of the last firmware update
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/// attempt for the firmware resource entry.
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/// LastAttemptStatus is updated each time an UpdateCapsule() is attempted for an
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/// ESRT entry and is preserved across reboots (non-volatile).
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/// If a firmware update has never been attempted or is unknown, for example after
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/// fresh insertion of a removable device, LastAttemptStatus must be set to Success.
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///
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UINT32 LastAttemptStatus;
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} EFI_SYSTEM_RESOURCE_ENTRY;
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typedef struct {
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///
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/// The number of firmware resources in the table, must not be zero.
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///
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UINT32 FwResourceCount;
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///
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/// The maximum number of resource array entries that can be within the table
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/// without reallocating the table, must not be zero.
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///
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UINT32 FwResourceCountMax;
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///
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/// The version of the EFI_SYSTEM_RESOURCE_ENTRY entities used in this table.
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/// This field should be set to 1.
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///
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UINT64 FwResourceVersion;
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///
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/// Array of EFI_SYSTEM_RESOURCE_ENTRY
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///
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//EFI_SYSTEM_RESOURCE_ENTRY Entries[];
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} EFI_SYSTEM_RESOURCE_TABLE;
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extern EFI_GUID gEfiSystemResourceTableGuid;
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#endif
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