482114024e
Signed-off-by : chao zhang <chao.b.zhang@intel.com> Reviewed-by : dong guo <guo.dong@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13908 6f19259b-4bc3-4df7-8a09-765794883524
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/** @file
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Ihis library is intended to be used by BDS modules.
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This library will lock TPM after executing TPM request.
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Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _TCG_PHYSICAL_PRESENCE_LIB_H_
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#define _TCG_PHYSICAL_PRESENCE_LIB_H_
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/**
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Check and execute the pending TPM request and Lock TPM.
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The TPM request may come from OS or BIOS. This API will display request information and wait
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for user confirmation if TPM request exists. The TPM request will be sent to TPM device after
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the TPM request is confirmed, and one or more reset may be required to make TPM request to
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take effect. At last, it will lock TPM to prevent TPM state change by malware.
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This API should be invoked after console in and console out are all ready as they are required
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to display request information and get user input to confirm the request. This API should also
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be invoked as early as possible as TPM is locked in this function.
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**/
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VOID
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EFIAPI
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TcgPhysicalPresenceLibProcessRequest (
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VOID
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);
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/**
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Check if the pending TPM request needs user input to confirm.
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The TPM request may come from OS. This API will check if TPM request exists and need user
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input to confirmation.
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@retval TRUE TPM needs input to confirm user physical presence.
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@retval FALSE TPM doesn't need input to confirm user physical presence.
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**/
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BOOLEAN
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EFIAPI
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TcgPhysicalPresenceLibNeedUserConfirm(
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VOID
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);
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#endif
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