181 lines
6.5 KiB
C
181 lines
6.5 KiB
C
/** @file
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Ihis library is intended to be used by BDS modules.
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This library will execute TPM2 request.
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2015 - 2016 Intel Corporation.
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The source code contained or described herein and all documents related to the
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source code ("Material") are owned by Intel Corporation or its suppliers or
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licensors. Title to the Material remains with Intel Corporation or its suppliers
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and licensors. The Material may contain trade secrets and proprietary and
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confidential information of Intel Corporation and its suppliers and licensors,
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and is protected by worldwide copyright and trade secret laws and treaty
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provisions. No part of the Material may be used, copied, reproduced, modified,
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published, uploaded, posted, transmitted, distributed, or disclosed in any way
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without Intel's prior express written permission.
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No license under any patent, copyright, trade secret or other intellectual
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property right is granted to or conferred upon you by disclosure or delivery
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of the Materials, either expressly, by implication, inducement, estoppel or
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otherwise. Any license under such intellectual property rights must be
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express and approved by Intel in writing.
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Unless otherwise agreed by Intel in writing, you may not remove or alter
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this notice or any other notice embedded in Materials by Intel or
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Intel's suppliers or licensors in any way.
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This file contains a 'Sample Driver' and is licensed as such under the terms
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of your license agreement with Intel or your vendor. This file may be modified
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by the user, subject to the additional terms of the license agreement.
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@par Specification
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**/
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#ifndef _TCG2_PHYSICAL_PRESENCE_LIB_H_
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#define _TCG2_PHYSICAL_PRESENCE_LIB_H_
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#include <IndustryStandard/Tpm20.h>
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#include <IndustryStandard/TcgPhysicalPresence.h>
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#include <Protocol/Tcg2Protocol.h>
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//
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// UEFI TCG2 library definition bit of the BIOS TPM Management Flags
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//
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// BIT0 is reserved
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CLEAR BIT1
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// BIT2 is reserved
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#define TCG2_LIB_PP_FLAG_RESET_TRACK BIT3
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_TURN_ON BIT4
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_TURN_OFF BIT5
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_EPS BIT6
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_PCRS BIT7
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//
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// UEFI TCG2 library definition bit of the BIOS Information Flags
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//
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#define TCG2_BIOS_INFORMATION_FLAG_HIERACHY_CONTROL_STORAGE_DISABLE BIT8
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#define TCG2_BIOS_INFORMATION_FLAG_HIERACHY_CONTROL_ENDORSEMENT_DISABLE BIT9
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//
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// UEFI TCG2 library definition bit of the BIOS Storage Management Flags
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//
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#define TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_ENABLE_BLOCK_SID BIT16
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#define TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_DISABLE_BLOCK_SID BIT17
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//
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// Default value
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//
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#define TCG2_BIOS_TPM_MANAGEMENT_FLAG_DEFAULT (TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_TURN_OFF | \
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TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CLEAR | \
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TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_EPS | \
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TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_PCRS)
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/**
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Check and execute the pending TPM request.
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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.
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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.
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@param PlatformAuth platform auth value. NULL means no platform auth change.
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**/
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VOID
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EFIAPI
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Tcg2PhysicalPresenceLibProcessRequest (
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IN TPM2B_AUTH *PlatformAuth OPTIONAL
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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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Tcg2PhysicalPresenceLibNeedUserConfirm (
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VOID
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);
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/**
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Return TPM2 ManagementFlags set by PP interface.
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@retval ManagementFlags TPM2 Management Flags.
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**/
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UINT32
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EFIAPI
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Tcg2PhysicalPresenceLibGetManagementFlags (
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VOID
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);
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/**
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The handler for TPM physical presence function:
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Return TPM Operation Response to OS Environment.
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This API should be invoked in OS runtime phase to interface with ACPI method.
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@param[out] MostRecentRequest Most recent operation request.
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@param[out] Response Response to the most recent operation request.
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@return Return Code for Return TPM Operation Response to OS Environment.
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**/
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UINT32
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EFIAPI
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Tcg2PhysicalPresenceLibReturnOperationResponseToOsFunction (
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OUT UINT32 *MostRecentRequest,
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OUT UINT32 *Response
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);
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/**
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The handler for TPM physical presence function:
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Submit TPM Operation Request to Pre-OS Environment and
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Submit TPM Operation Request to Pre-OS Environment 2.
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This API should be invoked in OS runtime phase to interface with ACPI method.
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Caution: This function may receive untrusted input.
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@param[in] OperationRequest TPM physical presence operation request.
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@param[in] RequestParameter TPM physical presence operation request parameter.
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@return Return Code for Submit TPM Operation Request to Pre-OS Environment and
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Submit TPM Operation Request to Pre-OS Environment 2.
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**/
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UINT32
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EFIAPI
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Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (
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IN UINT32 OperationRequest,
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IN UINT32 RequestParameter
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);
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/**
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The handler for TPM physical presence function:
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Get User Confirmation Status for Operation.
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This API should be invoked in OS runtime phase to interface with ACPI method.
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Caution: This function may receive untrusted input.
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@param[in] OperationRequest TPM physical presence operation request.
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@return Return Code for Get User Confirmation Status for Operation.
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**/
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UINT32
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EFIAPI
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Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
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IN UINT32 OperationRequest
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);
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#endif
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