Functions
EFI_STATUS EFIAPI	RequestMonotonicCounter (OUT UINT32 *CounterValue)

EFI_STATUS EFIAPI	IncrementMonotonicCounter (VOID)

Detailed Description

Public definitions for the Replay Protected Monotonic Counter (RPMC) Library.

Copyright (c) 2020, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Function Documentation

EFI_STATUS EFIAPI IncrementMonotonicCounter ( VOID )

Increments the monotonic counter in the SPI flash device by 1.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_DEVICE_ERROR	A device error occurred while attempting to update the counter.
EFI_UNSUPPORTED	The operation is un-supported.

EFI_STATUS EFIAPI RequestMonotonicCounter ( OUT UINT32 * CounterValue )

Requests the monotonic counter from the designated RPMC counter.

Parameters

[out] CounterValue A pointer to a buffer to store the RPMC value.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_DEVICE_ERROR	A device error occurred while attempting to update the counter.
EFI_UNSUPPORTED	The operation is un-supported.