TcgPpVendorLibNull.c File Reference

#include <Library/DebugLib.h>
#include <Library/TcgPpVendorLib.h>

Go to the source code of this file.

Functions
UINT32 EFIAPI	TcgPpVendorLibExecutePendingRequest (IN UINT32 OperationRequest, IN OUT UINT32 *ManagementFlags, OUT BOOLEAN *ResetRequired)
BOOLEAN EFIAPI	TcgPpVendorLibHasValidRequest (IN UINT32 OperationRequest, IN UINT32 ManagementFlags, OUT BOOLEAN *RequestConfirmed)
UINT32 EFIAPI	TcgPpVendorLibSubmitRequestToPreOSFunction (IN UINT32 OperationRequest, IN UINT32 ManagementFlags)
UINT32 EFIAPI	TcgPpVendorLibGetUserConfirmationStatusFunction (IN UINT32 OperationRequest, IN UINT32 ManagementFlags)

Detailed Description

NULL TCG PP Vendor library instance that does not support any vendor specific PPI.

Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file TcgPpVendorLibNull.c.

Function Documentation

TcgPpVendorLibExecutePendingRequest()

UINT32 EFIAPI TcgPpVendorLibExecutePendingRequest	(	IN UINT32	OperationRequest,
		IN OUT UINT32 *	ManagementFlags,
		OUT BOOLEAN *	ResetRequired
	)

Check and execute the requested physical presence command.

This API should be invoked in BIOS boot phase to process pending request.

Caution: This function may receive untrusted input.

If OperationRequest < 128, then ASSERT().

Parameters

[in]	OperationRequest	TPM physical presence operation request.
[in,out]	ManagementFlags	BIOS TPM Management Flags.
[out]	ResetRequired	If reset is required to vendor settings in effect. True, it indicates the reset is required. False, it indicates the reset is not required.

Returns

TPM Operation Response to OS Environment.

Definition at line 31 of file TcgPpVendorLibNull.c.

TcgPpVendorLibGetUserConfirmationStatusFunction()

UINT32 EFIAPI TcgPpVendorLibGetUserConfirmationStatusFunction	(	IN UINT32	OperationRequest,
		IN UINT32	ManagementFlags
	)

The callback for TPM vendor specific physical presence which is called for Get User Confirmation Status for Operation.

This API should be invoked in OS runtime phase to interface with ACPI method.

Caution: This function may receive untrusted input.

If OperationRequest < 128, then ASSERT().

Parameters

[in]	OperationRequest	TPM physical presence operation request.
[in]	ManagementFlags	BIOS TPM Management Flags.

Returns

Return Code for Get User Confirmation Status for Operation.

Definition at line 116 of file TcgPpVendorLibNull.c.

TcgPpVendorLibHasValidRequest()

BOOLEAN EFIAPI TcgPpVendorLibHasValidRequest	(	IN UINT32	OperationRequest,
		IN UINT32	ManagementFlags,
		OUT BOOLEAN *	RequestConfirmed
	)

Check if there is a valid physical presence command request.

This API should be invoked in BIOS boot phase to process pending request.

Caution: This function may receive untrusted input.

If OperationRequest < 128, then ASSERT().

Parameters

[in]	OperationRequest	TPM physical presence operation request.
[in]	ManagementFlags	BIOS TPM Management Flags.
[out]	RequestConfirmed	If the physical presence operation command required user confirm from UI. True, it indicates the command doesn't require user confirm. False, it indicates the command need user confirm from UI.

Return values

TRUE	Physical Presence operation command is valid.
FALSE	Physical Presence operation command is invalid.

Definition at line 61 of file TcgPpVendorLibNull.c.

TcgPpVendorLibSubmitRequestToPreOSFunction()

UINT32 EFIAPI TcgPpVendorLibSubmitRequestToPreOSFunction	(	IN UINT32	OperationRequest,
		IN UINT32	ManagementFlags
	)

The callback for TPM vendor specific physical presence which is called for Submit TPM Operation Request to Pre-OS Environment and Submit TPM Operation Request to Pre-OS Environment 2.

This API should be invoked in OS runtime phase to interface with ACPI method.

Caution: This function may receive untrusted input.

If OperationRequest < 128, then ASSERT().

Parameters

[in]	OperationRequest	TPM physical presence operation request.
[in]	ManagementFlags	BIOS TPM Management Flags.

Returns

Return Code for Submit TPM Operation Request to Pre-OS Environment and Submit TPM Operation Request to Pre-OS Environment 2.

Definition at line 90 of file TcgPpVendorLibNull.c.