diff options
Diffstat (limited to 'roms/edk2/FmpDevicePkg/Include')
5 files changed, 772 insertions, 0 deletions
diff --git a/roms/edk2/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h b/roms/edk2/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h new file mode 100644 index 000000000..5ec4d487e --- /dev/null +++ b/roms/edk2/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h @@ -0,0 +1,103 @@ +/** @file
+ Provides platform policy services used during a capsule update.
+
+ Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+ Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __CAPSULE_UPDATE_POLICY_LIB__
+#define __CAPSULE_UPDATE_POLICY_LIB__
+
+/**
+ Determine if the system power state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system power state supports a capsule
+ update. Returns FALSE if system power state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System power state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemPower (
+ OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the system thermal state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system thermal state supports a capsule
+ update. Returns FALSE if system thermal state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System thermal state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemThermal (
+ OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the system environment state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system environment state supports a capsule
+ update. Returns FALSE if system environment state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System environment state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemEnvironment (
+ OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the Lowest Supported Version checks should be performed. The
+ expected result from this function is TRUE. A platform can choose to return
+ FALSE (e.g. during manufacturing or servicing) to allow a capsule update to a
+ version below the current Lowest Supported Version.
+
+ @retval TRUE The lowest supported version check is required.
+ @retval FALSE Do not perform lowest support version check.
+
+**/
+BOOLEAN
+EFIAPI
+IsLowestSupportedVersionCheckRequired (
+ VOID
+ );
+
+/**
+ Determines if the FMP device should be locked when the event specified by
+ PcdFmpDeviceLockEventGuid is signaled. The expected result from this function
+ is TRUE so the FMP device is always locked. A platform can choose to return
+ FALSE (e.g. during manufacturing) to allow FMP devices to remain unlocked.
+
+ @retval TRUE The FMP device lock action is required at lock event guid.
+ @retval FALSE Do not perform FMP device lock at lock event guid.
+
+**/
+BOOLEAN
+EFIAPI
+IsLockFmpDeviceAtLockEventGuidRequired (
+ VOID
+ );
+
+#endif
diff --git a/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h new file mode 100644 index 000000000..ec380c494 --- /dev/null +++ b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyCheckLib.h @@ -0,0 +1,38 @@ +/** @file
+ Fmp Capsule Dependency check functions for Firmware Management Protocol based
+ firmware updates.
+
+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __FMP_DEPENDENCY_CHECK_LIB__
+#define __FMP_DEPENDENCY_CHECK_LIB__
+
+#include <PiDxe.h>
+#include <Protocol/FirmwareManagement.h>
+
+/**
+ Check dependency for firmware update.
+
+ @param[in] ImageTypeId Image Type Id.
+ @param[in] Version New version.
+ @param[in] Dependencies Fmp dependency.
+ @param[in] DependenciesSize Size, in bytes, of the Fmp dependency.
+
+ @retval TRUE Dependencies are satisfied.
+ @retval FALSE Dependencies are unsatisfied or dependency check fails.
+
+**/
+BOOLEAN
+EFIAPI
+CheckFmpDependency (
+ IN EFI_GUID ImageTypeId,
+ IN UINT32 Version,
+ IN EFI_FIRMWARE_IMAGE_DEP *Dependencies, OPTIONAL
+ IN UINT32 DependenciesSize
+ );
+
+#endif
diff --git a/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyDeviceLib.h b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyDeviceLib.h new file mode 100644 index 000000000..4351173b7 --- /dev/null +++ b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyDeviceLib.h @@ -0,0 +1,51 @@ +/** @file
+ Provides firmware device specific services to support saving dependency to
+ firmware device and getting dependency from firmware device.
+
+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __FMP_DEPENDENCY_DEVICE_LIB__
+#define __FMP_DEPENDENCY_DEVICE_LIB__
+
+#include <PiDxe.h>
+#include <Protocol/FirmwareManagement.h>
+
+/**
+ Save dependency to Fmp device.
+
+ @param[in] Depex Fmp dependency.
+ @param[in] DepexSize Size, in bytes, of the Fmp dependency.
+
+ @retval EFI_SUCCESS Save Fmp dependency succeeds.
+ @retval EFI_UNSUPPORTED Save Fmp dependency is not supported.
+ @retval Others Save Fmp dependency fails.
+
+**/
+EFI_STATUS
+EFIAPI
+SaveFmpDependency (
+ IN EFI_FIRMWARE_IMAGE_DEP *Depex,
+ IN UINT32 DepexSize
+ );
+
+/**
+ Get dependency from the Fmp device.
+ This caller is responsible for freeing the dependency buffer.
+
+ @param[out] DepexSize Size, in bytes, of the dependency.
+
+ @retval The pointer to dependency.
+ @retval NULL
+
+**/
+EFI_FIRMWARE_IMAGE_DEP*
+EFIAPI
+GetFmpDependency (
+ OUT UINT32 *DepexSize
+ );
+
+#endif
diff --git a/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyLib.h b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyLib.h new file mode 100644 index 000000000..c73290342 --- /dev/null +++ b/roms/edk2/FmpDevicePkg/Include/Library/FmpDependencyLib.h @@ -0,0 +1,90 @@ +/** @file
+ Fmp Capsule Dependency support functions for Firmware Management Protocol based
+ firmware updates.
+
+ Copyright (c) Microsoft Corporation.<BR>
+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __FMP_DEPENDENCY_LIB__
+#define __FMP_DEPENDENCY_LIB__
+
+#include <PiDxe.h>
+#include <Protocol/FirmwareManagement.h>
+
+//
+// Data struct to store FMP ImageType and version for dependency check.
+//
+typedef struct {
+ EFI_GUID ImageTypeId;
+ UINT32 Version;
+} FMP_DEPEX_CHECK_VERSION_DATA;
+
+/**
+ Validate the dependency expression and output its size.
+
+ @param[in] Dependencies Pointer to the EFI_FIRMWARE_IMAGE_DEP.
+ @param[in] MaxDepexSize Max size of the dependency.
+ @param[out] DepexSize Size of dependency.
+
+ @retval TRUE The dependency expression is valid.
+ @retval FALSE The dependency expression is invalid.
+
+**/
+BOOLEAN
+EFIAPI
+ValidateDependency (
+ IN EFI_FIRMWARE_IMAGE_DEP *Dependencies,
+ IN UINTN MaxDepexSize,
+ OUT UINT32 *DepexSize
+ );
+
+/**
+ Get dependency from firmware image.
+
+ @param[in] Image Points to the firmware image.
+ @param[in] ImageSize Size, in bytes, of the firmware image.
+ @param[out] DepexSize Size, in bytes, of the dependency.
+
+ @retval The pointer to dependency.
+ @retval Null
+
+**/
+EFI_FIRMWARE_IMAGE_DEP*
+EFIAPI
+GetImageDependency (
+ IN EFI_FIRMWARE_IMAGE_AUTHENTICATION *Image,
+ IN UINTN ImageSize,
+ OUT UINT32 *DepexSize
+ );
+
+/**
+ Evaluate the dependencies. The caller must search all the Fmp instances and
+ gather their versions into FmpVersions parameter. If there is PUSH_GUID opcode
+ in dependency expression with no FmpVersions provided, the dependency will
+ evaluate to FALSE.
+
+ @param[in] Dependencies Dependency expressions.
+ @param[in] DependenciesSize Size of Dependency expressions.
+ @param[in] FmpVersions Array of Fmp ImageTypeId and version. This
+ parameter is optional and can be set to NULL.
+ @param[in] FmpVersionsCount Element count of the array. When FmpVersions
+ is NULL, FmpVersionsCount must be 0.
+
+ @retval TRUE Dependency expressions evaluate to TRUE.
+ @retval FALSE Dependency expressions evaluate to FALSE.
+
+**/
+BOOLEAN
+EFIAPI
+EvaluateDependency (
+ IN EFI_FIRMWARE_IMAGE_DEP *Dependencies,
+ IN UINTN DependenciesSize,
+ IN FMP_DEPEX_CHECK_VERSION_DATA *FmpVersions OPTIONAL,
+ IN UINTN FmpVersionsCount
+ );
+
+#endif
diff --git a/roms/edk2/FmpDevicePkg/Include/Library/FmpDeviceLib.h b/roms/edk2/FmpDevicePkg/Include/Library/FmpDeviceLib.h new file mode 100644 index 000000000..9a89f5c2e --- /dev/null +++ b/roms/edk2/FmpDevicePkg/Include/Library/FmpDeviceLib.h @@ -0,0 +1,490 @@ +/** @file
+ Provides firmware device specific services to support updates of a firmware
+ image stored in a firmware device.
+
+ Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+ Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __FMP_DEVICE_LIB__
+#define __FMP_DEVICE_LIB__
+
+#include <Protocol/FirmwareManagement.h>
+
+/**
+ Callback function that installs a Firmware Management Protocol instance onto
+ a handle.
+
+ @param[in] Handle The device handle to install a Firmware Management
+ Protocol instance.
+
+ @retval EFI_SUCCESS A Firmware Management Protocol instance was
+ installed onto Handle.
+ @retval EFI_INVALID_PARAMETER Handle is invalid
+ @retval other A Firmware Management Protocol instance could
+ not be installed onto Handle.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *FMP_DEVICE_LIB_REGISTER_FMP_INSTALLER)(
+ IN EFI_HANDLE Handle
+ );
+
+/**
+ Callback function that uninstalls a Firmware Management Protocol instance from
+ a handle.
+
+ @param[in] Handle The device handle to uninstall a Firmware Management
+ Protocol instance.
+
+ @retval EFI_SUCCESS A Firmware Management Protocol instance was
+ uninstalled from Handle.
+ @retval EFI_INVALID_PARAMETER Handle is invalid
+ @retval other A Firmware Management Protocol instance could
+ not be uninstalled from Handle.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *FMP_DEVICE_LIB_REGISTER_FMP_UNINSTALLER)(
+ IN EFI_HANDLE Handle
+ );
+
+/**
+ Provide a function to install the Firmware Management Protocol instance onto a
+ device handle when the device is managed by a driver that follows the UEFI
+ Driver Model. If the device is not managed by a driver that follows the UEFI
+ Driver Model, then EFI_UNSUPPORTED is returned.
+
+ @param[in] FmpInstaller Function that installs the Firmware Management
+ Protocol.
+
+ @retval EFI_SUCCESS The device is managed by a driver that follows the
+ UEFI Driver Model. FmpInstaller must be called on
+ each Driver Binding Start().
+ @retval EFI_UNSUPPORTED The device is not managed by a driver that follows
+ the UEFI Driver Model.
+ @retval other The Firmware Management Protocol for this firmware
+ device is not installed. The firmware device is
+ still locked using FmpDeviceLock().
+
+**/
+EFI_STATUS
+EFIAPI
+RegisterFmpInstaller (
+ IN FMP_DEVICE_LIB_REGISTER_FMP_INSTALLER FmpInstaller
+ );
+
+/**
+ Provide a function to uninstall the Firmware Management Protocol instance from a
+ device handle when the device is managed by a driver that follows the UEFI
+ Driver Model. If the device is not managed by a driver that follows the UEFI
+ Driver Model, then EFI_UNSUPPORTED is returned.
+
+ @param[in] FmpUninstaller Function that installs the Firmware Management
+ Protocol.
+
+ @retval EFI_SUCCESS The device is managed by a driver that follows the
+ UEFI Driver Model. FmpUninstaller must be called on
+ each Driver Binding Stop().
+ @retval EFI_UNSUPPORTED The device is not managed by a driver that follows
+ the UEFI Driver Model.
+ @retval other The Firmware Management Protocol for this firmware
+ device is not installed. The firmware device is
+ still locked using FmpDeviceLock().
+
+**/
+EFI_STATUS
+EFIAPI
+RegisterFmpUninstaller (
+ IN FMP_DEVICE_LIB_REGISTER_FMP_UNINSTALLER FmpUninstaller
+ );
+
+/**
+ Set the device context for the FmpDeviceLib services when the device is
+ managed by a driver that follows the UEFI Driver Model. If the device is not
+ managed by a driver that follows the UEFI Driver Model, then EFI_UNSUPPORTED
+ is returned. Once a device context is set, the FmpDeviceLib services
+ operate on the currently set device context.
+
+ @param[in] Handle Device handle for the FmpDeviceLib services.
+ If Handle is NULL, then Context is freed.
+ @param[in, out] Context Device context for the FmpDeviceLib services.
+ If Context is NULL, then a new context is allocated
+ for Handle and the current device context is set and
+ returned in Context. If Context is not NULL, then
+ the current device context is set.
+
+ @retval EFI_SUCCESS The device is managed by a driver that follows the
+ UEFI Driver Model.
+ @retval EFI_UNSUPPORTED The device is not managed by a driver that follows
+ the UEFI Driver Model.
+ @retval other The Firmware Management Protocol for this firmware
+ device is not installed. The firmware device is
+ still locked using FmpDeviceLock().
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceSetContext (
+ IN EFI_HANDLE Handle,
+ IN OUT VOID **Context
+ );
+
+/**
+ Returns the size, in bytes, of the firmware image currently stored in the
+ firmware device. This function is used to by the GetImage() and
+ GetImageInfo() services of the Firmware Management Protocol. If the image
+ size can not be determined from the firmware device, then 0 must be returned.
+
+ @param[out] Size Pointer to the size, in bytes, of the firmware image
+ currently stored in the firmware device.
+
+ @retval EFI_SUCCESS The size of the firmware image currently
+ stored in the firmware device was returned.
+ @retval EFI_INVALID_PARAMETER Size is NULL.
+ @retval EFI_UNSUPPORTED The firmware device does not support reporting
+ the size of the currently stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to determine the
+ size of the firmware image currently stored in
+ in the firmware device.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetSize (
+ OUT UINTN *Size
+ );
+
+/**
+ Returns the GUID value used to fill in the ImageTypeId field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_UNSUPPORTED is returned,
+ then the ImageTypeId field is set to gEfiCallerIdGuid. If EFI_SUCCESS is
+ returned, then ImageTypeId is set to the Guid returned from this function.
+
+ @param[out] Guid Double pointer to a GUID value that is updated to point to
+ to a GUID value. The GUID value is not allocated and must
+ not be modified or freed by the caller.
+
+ @retval EFI_SUCCESS EFI_FIRMWARE_IMAGE_DESCRIPTOR ImageTypeId GUID is set
+ to the returned Guid value.
+ @retval EFI_UNSUPPORTED EFI_FIRMWARE_IMAGE_DESCRIPTOR ImageTypeId GUID is set
+ to gEfiCallerIdGuid.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetImageTypeIdGuidPtr (
+ OUT EFI_GUID **Guid
+ );
+
+/**
+ Returns values used to fill in the AttributesSupported and AttributesSettings
+ fields of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the
+ GetImageInfo() service of the Firmware Management Protocol. The following
+ bit values from the Firmware Management Protocol may be combined:
+ IMAGE_ATTRIBUTE_IMAGE_UPDATABLE
+ IMAGE_ATTRIBUTE_RESET_REQUIRED
+ IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED
+ IMAGE_ATTRIBUTE_IN_USE
+ IMAGE_ATTRIBUTE_UEFI_IMAGE
+
+ @param[out] Supported Attributes supported by this firmware device.
+ @param[out] Setting Attributes settings for this firmware device.
+
+ @retval EFI_SUCCESS The attributes supported by the firmware
+ device were returned.
+ @retval EFI_INVALID_PARAMETER Supported is NULL.
+ @retval EFI_INVALID_PARAMETER Setting is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetAttributes (
+ OUT UINT64 *Supported,
+ OUT UINT64 *Setting
+ );
+
+/**
+ Returns the value used to fill in the LowestSupportedVersion field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_SUCCESS is returned, then
+ the firmware device supports a method to report the LowestSupportedVersion
+ value from the currently stored firmware image. If the value can not be
+ reported for the firmware image currently stored in the firmware device, then
+ EFI_UNSUPPORTED must be returned. EFI_DEVICE_ERROR is returned if an error
+ occurs attempting to retrieve the LowestSupportedVersion value for the
+ currently stored firmware image.
+
+ @note It is recommended that all firmware devices support a method to report
+ the LowestSupportedVersion value from the currently stored firmware
+ image.
+
+ @param[out] LowestSupportedVersion LowestSupportedVersion value retrieved
+ from the currently stored firmware image.
+
+ @retval EFI_SUCCESS The lowest supported version of currently stored
+ firmware image was returned in LowestSupportedVersion.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method to
+ report the lowest supported version of the currently
+ stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the lowest
+ supported version of the currently stored firmware
+ image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetLowestSupportedVersion (
+ OUT UINT32 *LowestSupportedVersion
+ );
+
+/**
+ Returns the Null-terminated Unicode string that is used to fill in the
+ VersionName field of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is
+ returned by the GetImageInfo() service of the Firmware Management Protocol.
+ The returned string must be allocated using EFI_BOOT_SERVICES.AllocatePool().
+
+ @note It is recommended that all firmware devices support a method to report
+ the VersionName string from the currently stored firmware image.
+
+ @param[out] VersionString The version string retrieved from the currently
+ stored firmware image.
+
+ @retval EFI_SUCCESS The version string of currently stored
+ firmware image was returned in Version.
+ @retval EFI_INVALID_PARAMETER VersionString is NULL.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method
+ to report the version string of the currently
+ stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the
+ version string of the currently stored
+ firmware image.
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate the
+ buffer for the version string of the currently
+ stored firmware image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetVersionString (
+ OUT CHAR16 **VersionString
+ );
+
+/**
+ Returns the value used to fill in the Version field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_SUCCESS is returned, then
+ the firmware device supports a method to report the Version value from the
+ currently stored firmware image. If the value can not be reported for the
+ firmware image currently stored in the firmware device, then EFI_UNSUPPORTED
+ must be returned. EFI_DEVICE_ERROR is returned if an error occurs attempting
+ to retrieve the LowestSupportedVersion value for the currently stored firmware
+ image.
+
+ @note It is recommended that all firmware devices support a method to report
+ the Version value from the currently stored firmware image.
+
+ @param[out] Version The version value retrieved from the currently stored
+ firmware image.
+
+ @retval EFI_SUCCESS The version of currently stored firmware image was
+ returned in Version.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method to
+ report the version of the currently stored firmware
+ image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the version
+ of the currently stored firmware image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetVersion (
+ OUT UINT32 *Version
+ );
+
+/**
+ Returns the value used to fill in the HardwareInstance field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_SUCCESS is returned, then
+ the firmware device supports a method to report the HardwareInstance value.
+ If the value can not be reported for the firmware device, then EFI_UNSUPPORTED
+ must be returned. EFI_DEVICE_ERROR is returned if an error occurs attempting
+ to retrieve the HardwareInstance value for the firmware device.
+
+ @param[out] HardwareInstance The hardware instance value for the firmware
+ device.
+
+ @retval EFI_SUCCESS The hardware instance for the current firmware
+ device is returned in HardwareInstance.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method to
+ report the hardware instance value.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the hardware
+ instance value.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetHardwareInstance (
+ OUT UINT64 *HardwareInstance
+ );
+
+/**
+ Returns a copy of the firmware image currently stored in the firmware device.
+
+ @note It is recommended that all firmware devices support a method to retrieve
+ a copy currently stored firmware image. This can be used to support
+ features such as recovery and rollback.
+
+ @param[out] Image Pointer to a caller allocated buffer where the
+ currently stored firmware image is copied to.
+ @param[in, out] ImageSize Pointer the size, in bytes, of the Image buffer.
+ On return, points to the size, in bytes, of firmware
+ image currently stored in the firmware device.
+
+ @retval EFI_SUCCESS Image contains a copy of the firmware image
+ currently stored in the firmware device, and
+ ImageSize contains the size, in bytes, of the
+ firmware image currently stored in the
+ firmware device.
+ @retval EFI_BUFFER_TOO_SMALL The buffer specified by ImageSize is too small
+ to hold the firmware image currently stored in
+ the firmware device. The buffer size required
+ is returned in ImageSize.
+ @retval EFI_INVALID_PARAMETER The Image is NULL.
+ @retval EFI_INVALID_PARAMETER The ImageSize is NULL.
+ @retval EFI_UNSUPPORTED The operation is not supported.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the
+ firmware image currently stored in the firmware
+ device.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetImage (
+ OUT VOID *Image,
+ IN OUT UINTN *ImageSize
+ );
+
+/**
+ Checks if a new firmware image is valid for the firmware device. This
+ function allows firmware update operation to validate the firmware image
+ before FmpDeviceSetImage() is called.
+
+ @param[in] Image Points to a new firmware image.
+ @param[in] ImageSize Size, in bytes, of a new firmware image.
+ @param[out] ImageUpdatable Indicates if a new firmware image is valid for
+ a firmware update to the firmware device. The
+ following values from the Firmware Management
+ Protocol are supported:
+ IMAGE_UPDATABLE_VALID
+ IMAGE_UPDATABLE_INVALID
+ IMAGE_UPDATABLE_INVALID_TYPE
+ IMAGE_UPDATABLE_INVALID_OLD
+ IMAGE_UPDATABLE_VALID_WITH_VENDOR_CODE
+
+ @retval EFI_SUCCESS The image was successfully checked. Additional
+ status information is returned in
+ ImageUpdatable.
+ @retval EFI_INVALID_PARAMETER Image is NULL.
+ @retval EFI_INVALID_PARAMETER ImageUpdatable is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceCheckImage (
+ IN CONST VOID *Image,
+ IN UINTN ImageSize,
+ OUT UINT32 *ImageUpdatable
+ );
+
+/**
+ Updates a firmware device with a new firmware image. This function returns
+ EFI_UNSUPPORTED if the firmware image is not updatable. If the firmware image
+ is updatable, the function should perform the following minimal validations
+ before proceeding to do the firmware image update.
+ - Validate that the image is a supported image for this firmware device.
+ Return EFI_ABORTED if the image is not supported. Additional details
+ on why the image is not a supported image may be returned in AbortReason.
+ - Validate the data from VendorCode if is not NULL. Firmware image
+ validation must be performed before VendorCode data validation.
+ VendorCode data is ignored or considered invalid if image validation
+ fails. Return EFI_ABORTED if the VendorCode data is invalid.
+
+ VendorCode enables vendor to implement vendor-specific firmware image update
+ policy. Null if the caller did not specify the policy or use the default
+ policy. As an example, vendor can implement a policy to allow an option to
+ force a firmware image update when the abort reason is due to the new firmware
+ image version is older than the current firmware image version or bad image
+ checksum. Sensitive operations such as those wiping the entire firmware image
+ and render the device to be non-functional should be encoded in the image
+ itself rather than passed with the VendorCode. AbortReason enables vendor to
+ have the option to provide a more detailed description of the abort reason to
+ the caller.
+
+ @param[in] Image Points to the new firmware image.
+ @param[in] ImageSize Size, in bytes, of the new firmware image.
+ @param[in] VendorCode This enables vendor to implement vendor-specific
+ firmware image update policy. NULL indicates
+ the caller did not specify the policy or use the
+ default policy.
+ @param[in] Progress A function used to report the progress of
+ updating the firmware device with the new
+ firmware image.
+ @param[in] CapsuleFwVersion The version of the new firmware image from the
+ update capsule that provided the new firmware
+ image.
+ @param[out] AbortReason A pointer to a pointer to a Null-terminated
+ Unicode string providing more details on an
+ aborted operation. The buffer is allocated by
+ this function with
+ EFI_BOOT_SERVICES.AllocatePool(). It is the
+ caller's responsibility to free this buffer with
+ EFI_BOOT_SERVICES.FreePool().
+
+ @retval EFI_SUCCESS The firmware device was successfully updated
+ with the new firmware image.
+ @retval EFI_ABORTED The operation is aborted. Additional details
+ are provided in AbortReason.
+ @retval EFI_INVALID_PARAMETER The Image was NULL.
+ @retval EFI_UNSUPPORTED The operation is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceSetImage (
+ IN CONST VOID *Image,
+ IN UINTN ImageSize,
+ IN CONST VOID *VendorCode, OPTIONAL
+ IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS Progress, OPTIONAL
+ IN UINT32 CapsuleFwVersion,
+ OUT CHAR16 **AbortReason
+ );
+
+/**
+ Lock the firmware device that contains a firmware image. Once a firmware
+ device is locked, any attempts to modify the firmware image contents in the
+ firmware device must fail.
+
+ @note It is recommended that all firmware devices support a lock method to
+ prevent modifications to a stored firmware image.
+
+ @note A firmware device lock mechanism is typically only cleared by a full
+ system reset (not just sleep state/low power mode).
+
+ @retval EFI_SUCCESS The firmware device was locked.
+ @retval EFI_UNSUPPORTED The firmware device does not support locking
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceLock (
+ VOID
+ );
+
+#endif
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