DxeTpmMeasurementLib.c File Reference

#include <PiDxe.h>
#include <Protocol/TcgService.h>
#include <Protocol/Tcg2Protocol.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>
#include <Library/TpmMeasurementLib.h>
#include <Guid/Acpi.h>
#include <IndustryStandard/Acpi.h>
#include <Protocol/CcMeasurement.h>

Go to the source code of this file.

Functions
STATIC EFI_STATUS	Tpm12MeasureAndLogData (IN UINT32 PcrIndex, IN UINT32 EventType, IN VOID *EventLog, IN UINT32 LogLen, IN VOID *HashData, IN UINT64 HashDataLen)
STATIC EFI_STATUS	Tpm20MeasureAndLogData (IN UINT32 PcrIndex, IN UINT32 EventType, IN VOID *EventLog, IN UINT32 LogLen, IN VOID *HashData, IN UINT64 HashDataLen)
STATIC EFI_STATUS	CcMeasureAndLogData (IN EFI_CC_MEASUREMENT_PROTOCOL *CcProtocol, IN UINT32 PcrIndex, IN UINT32 EventType, IN VOID *EventLog, IN UINT32 LogLen, IN VOID *HashData, IN UINT64 HashDataLen)
EFI_STATUS EFIAPI	TpmMeasureAndLogData (IN UINT32 PcrIndex, IN UINT32 EventType, IN VOID *EventLog, IN UINT32 LogLen, IN VOID *HashData, IN UINT64 HashDataLen)

Detailed Description

This library is used by other modules to measure data to TPM and Confidential Computing (CC) measure registers.

Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file DxeTpmMeasurementLib.c.

Function Documentation

CcMeasureAndLogData()

STATIC EFI_STATUS CcMeasureAndLogData	(	IN EFI_CC_MEASUREMENT_PROTOCOL *	CcProtocol,
		IN UINT32	PcrIndex,
		IN UINT32	EventType,
		IN VOID *	EventLog,
		IN UINT32	LogLen,
		IN VOID *	HashData,
		IN UINT64	HashDataLen
	)

Cc measure and log data, and extend the measurement result into a specific CC MR.

Parameters

[in]	CcProtocol	Instance of CC measurement protocol
[in]	PcrIndex	PCR Index.
[in]	EventType	Event type.
[in]	EventLog	Measurement event log.
[in]	LogLen	Event log length in bytes.
[in]	HashData	The start of the data buffer to be hashed, extended.
[in]	HashDataLen	The length, in bytes, of the buffer referenced by HashData

Return values

EFI_SUCCESS	Operation completed successfully.
EFI_UNSUPPORTED	CC guest not available.
EFI_OUT_OF_RESOURCES	Out of memory.
EFI_DEVICE_ERROR	The operation was unsuccessful.
EFI_INVALID_PARAMETER	The input parameter is invalid.

Definition at line 174 of file DxeTpmMeasurementLib.c.

Tpm12MeasureAndLogData()

STATIC EFI_STATUS Tpm12MeasureAndLogData	(	IN UINT32	PcrIndex,
		IN UINT32	EventType,
		IN VOID *	EventLog,
		IN UINT32	LogLen,
		IN VOID *	HashData,
		IN UINT64	HashDataLen
	)

Tpm12 measure and log data, and extend the measurement result into a specific PCR.

Parameters

[in]	PcrIndex	PCR Index.
[in]	EventType	Event type.
[in]	EventLog	Measurement event log.
[in]	LogLen	Event log length in bytes.
[in]	HashData	The start of the data buffer to be hashed, extended.
[in]	HashDataLen	The length, in bytes, of the buffer referenced by HashData

Return values

EFI_SUCCESS	Operation completed successfully.
EFI_UNSUPPORTED	TPM device not available.
EFI_OUT_OF_RESOURCES	Out of memory.
EFI_DEVICE_ERROR	The operation was unsuccessful.

Definition at line 42 of file DxeTpmMeasurementLib.c.

Tpm20MeasureAndLogData()

STATIC EFI_STATUS Tpm20MeasureAndLogData	(	IN UINT32	PcrIndex,
		IN UINT32	EventType,
		IN VOID *	EventLog,
		IN UINT32	LogLen,
		IN VOID *	HashData,
		IN UINT64	HashDataLen
	)

Tpm20 measure and log data, and extend the measurement result into a specific PCR.

Parameters

[in]	PcrIndex	PCR Index.
[in]	EventType	Event type.
[in]	EventLog	Measurement event log.
[in]	LogLen	Event log length in bytes.
[in]	HashData	The start of the data buffer to be hashed, extended.
[in]	HashDataLen	The length, in bytes, of the buffer referenced by HashData

Return values

EFI_SUCCESS	Operation completed successfully.
EFI_UNSUPPORTED	TPM device not available.
EFI_OUT_OF_RESOURCES	Out of memory.
EFI_DEVICE_ERROR	The operation was unsuccessful.

Definition at line 109 of file DxeTpmMeasurementLib.c.

TpmMeasureAndLogData()

EFI_STATUS EFIAPI TpmMeasureAndLogData	(	IN UINT32	PcrIndex,
		IN UINT32	EventType,
		IN VOID *	EventLog,
		IN UINT32	LogLen,
		IN VOID *	HashData,
		IN UINT64	HashDataLen
	)

Tpm measure and log data, and extend the measurement result into a specific PCR.

Parameters

[in]	PcrIndex	PCR Index.
[in]	EventType	Event type.
[in]	EventLog	Measurement event log.
[in]	LogLen	Event log length in bytes.
[in]	HashData	The start of the data buffer to be hashed, extended.
[in]	HashDataLen	The length, in bytes, of the buffer referenced by HashData

Return values

EFI_SUCCESS	Operation completed successfully.
EFI_UNSUPPORTED	TPM device not available.
EFI_OUT_OF_RESOURCES	Out of memory.
EFI_DEVICE_ERROR	The operation was unsuccessful.

Definition at line 238 of file DxeTpmMeasurementLib.c.