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https://github.com/tianocore/edk2
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f47216f159
To support measurement and extend PCR in PeilessSec with TPM device using FF-A over CRB, add Tpm2DeviceSecLibFfa for PeilessSec. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/** @file
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This library provides an interfaces to access DynamicPcds used
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in Tpm2DeviceLibFfa.
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Copyright (c) 2025, Arm Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/Tpm2DeviceLib.h>
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#include <Uefi/UefiBaseType.h>
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#include "Tpm2DeviceLibFfa.h"
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/**
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This function validate TPM interface type for TPM service over FF-A.
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@retval EFI_SUCCESS TPM interface type is valid.
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@retval EFI_UNSUPPORTED TPM interface type is invalid.
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**/
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EFI_STATUS
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EFIAPI
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ValidateTpmInterfaceType (
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VOID
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)
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{
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TPM2_PTP_INTERFACE_TYPE TpmInterfaceType;
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TpmInterfaceType = Tpm2GetPtpInterface ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress));
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if (TpmInterfaceType != Tpm2PtpInterfaceCrb) {
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return EFI_UNSUPPORTED;
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}
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DEBUG ((DEBUG_INFO, "Setting Tpm Active Interface Type %d\n", TpmInterfaceType));
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return EFI_SUCCESS;
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}
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/**
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This function is used to get the TPM service partition id.
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@param[out] PartitionId - Supplies the pointer to the TPM service partition id.
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@retval EFI_SUCCESS The TPM command was successfully sent to the TPM
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and the response was copied to the Output buffer.
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@retval EFI_INVALID_PARAMETER The TPM command buffer is NULL or the TPM command
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buffer size is 0.
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@retval EFI_DEVICE_ERROR An error occurred in communication with the TPM.
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**/
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EFI_STATUS
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EFIAPI
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GetTpmServicePartitionId (
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OUT UINT16 *PartitionId
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)
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{
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return FfaTpm2GetServicePartitionId (PartitionId);
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}
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