EDK2 doxygen online documents - Firmware Encoding Index 1
EDK2 doxygen online documents - Firmware Encoding Index
Functions

SecurityPkg/Include/Library/TcgPhysicalPresenceLib.h File Reference

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Functions

VOID EFIAPI TcgPhysicalPresenceLibProcessRequest (VOID)

Detailed Description

Ihis library is intended to be used by BDS modules. This library will lock TPM after executing TPM request.

Copyright (c) 2011, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

Definition in file TcgPhysicalPresenceLib.h.


Function Documentation

VOID EFIAPI TcgPhysicalPresenceLibProcessRequest ( VOID  )

Check and execute the pending TPM request and Lock TPM.

The TPM request may come from OS or BIOS. This API will display request information and wait for user confirmation if TPM request exists. The TPM request will be sent to TPM device after the TPM request is confirmed, and one or more reset may be required to make TPM request to take effect. At last, it will lock TPM to prevent TPM state change by malware.

This API should be invoked after console in and console out are all ready as they are required to display request information and get user input to confirm the request. This API should also be invoked as early as possible as TPM is locked in this function.

Definition at line 1033 of file DxeTcgPhysicalPresenceLib.c.

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