Tpm2InstanceLibDTpm.c File Reference

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/Tpm2DeviceLib.h>
#include <Library/PcdLib.h>
#include <Guid/TpmInstance.h>
#include "Tpm2DeviceLibDTpm.h"

Go to the source code of this file.

Functions
VOID	DumpPtpInfo (IN VOID *Register)
EFI_STATUS EFIAPI	DTpm2SubmitCommand (IN UINT32 InputParameterBlockSize, IN UINT8 *InputParameterBlock, IN OUT UINT32 *OutputParameterBlockSize, IN UINT8 *OutputParameterBlock)
EFI_STATUS EFIAPI	DTpm2RequestUseTpm (VOID)
EFI_STATUS EFIAPI	Tpm2InstanceLibDTpmConstructor (VOID)

Variables
TPM2_DEVICE_INTERFACE	mDTpm2InternalTpm2Device

Detailed Description

This library is TPM2 DTPM instance. It can be registered to Tpm2 Device router, to be active TPM2 engine, based on platform setting.

Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Tpm2InstanceLibDTpm.c.

Function Documentation

DTpm2RequestUseTpm()

EFI_STATUS EFIAPI DTpm2RequestUseTpm

(

VOID

)

This service requests use TPM2.

Return values

EFI_SUCCESS	Get the control of TPM2 chip.
EFI_NOT_FOUND	TPM2 not found.
EFI_DEVICE_ERROR	Unexpected device behavior.

Definition at line 633 of file Tpm2Ptp.c.

DTpm2SubmitCommand()

EFI_STATUS EFIAPI DTpm2SubmitCommand	(	IN UINT32	InputParameterBlockSize,
		IN UINT8 *	InputParameterBlock,
		IN OUT UINT32 *	OutputParameterBlockSize,
		IN UINT8 *	OutputParameterBlock
	)

This service enables the sending of commands to the TPM2.

Parameters

[in]	InputParameterBlockSize	Size of the TPM2 input parameter block.
[in]	InputParameterBlock	Pointer to the TPM2 input parameter block.
[in,out]	OutputParameterBlockSize	Size of the TPM2 output parameter block.
[in]	OutputParameterBlock	Pointer to the TPM2 output parameter block.

Return values

EFI_SUCCESS	The command byte stream was successfully sent to the device and a response was successfully received.
EFI_DEVICE_ERROR	The command was not successfully sent to the device or a response was not successfully received from the device.
EFI_BUFFER_TOO_SMALL	The output parameter block is too small.

Definition at line 591 of file Tpm2Ptp.c.

DumpPtpInfo()

VOID DumpPtpInfo

(

IN VOID *

Register

)

Dump PTP register information.

Parameters

[in]

Register

Pointer to PTP register.

Definition at line 502 of file Tpm2Ptp.c.

Tpm2InstanceLibDTpmConstructor()

EFI_STATUS EFIAPI Tpm2InstanceLibDTpmConstructor

(

VOID

)

The function register DTPM2.0 instance and caches current active TPM interface type.

Return values

EFI_SUCCESS

DTPM2.0 instance is registered, or system does not support register DTPM2.0 instance

Definition at line 78 of file Tpm2InstanceLibDTpm.c.

Variable Documentation

mDTpm2InternalTpm2Device

TPM2_DEVICE_INTERFACE mDTpm2InternalTpm2Device

Initial value:

= {
  TPM_DEVICE_INTERFACE_TPM20_DTPM,
  DTpm2SubmitCommand,
  DTpm2RequestUseTpm,
}

Definition at line 65 of file Tpm2InstanceLibDTpm.c.