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/** @file
Variable Flash Information Library
Copyright (c) Microsoft Corporation<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef VARIABLE_FLASH_INFO_LIB_H_
#define VARIABLE_FLASH_INFO_LIB_H_
/**
Get the base address and size for the NV storage area used for UEFI variable storage.
@param[out] BaseAddress The NV storage base address.
@param[out] Length The NV storage length in bytes.
@retval EFI_SUCCESS NV storage information was found successfully.
@retval EFI_INVALID_PARAMETER A required pointer parameter is NULL.
@retval EFI_NOT_FOUND NV storage information could not be found.
**/
EFI_STATUS
EFIAPI
GetVariableFlashNvStorageInfo (
OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
OUT UINT64 *Length
);
/**
Get the base address and size for the fault tolerant write (FTW) spare
area used for UEFI variable storage.
@param[out] BaseAddress The FTW spare base address.
@param[out] Length The FTW spare length in bytes.
@retval EFI_SUCCESS FTW spare information was found successfully.
@retval EFI_INVALID_PARAMETER A required pointer parameter is NULL.
@retval EFI_NOT_FOUND FTW spare information could not be found.
**/
EFI_STATUS
EFIAPI
GetVariableFlashFtwSpareInfo (
OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
OUT UINT64 *Length
);
/**
Get the base address and size for the fault tolerant write (FTW) working
area used for UEFI variable storage.
@param[out] BaseAddress The FTW working area base address.
@param[out] Length The FTW working area length in bytes.
@retval EFI_SUCCESS FTW working information was found successfully.
@retval EFI_INVALID_PARAMETER A required pointer parameter is NULL.
@retval EFI_NOT_FOUND FTW working information could not be found.
**/
EFI_STATUS
EFIAPI
GetVariableFlashFtwWorkingInfo (
OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
OUT UINT64 *Length
);
#endif
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