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diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/SmmCorePerformanceLib/SmmCorePerformanceLibInternal.h b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/SmmCorePerformanceLib/SmmCorePerformanceLibInternal.h
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+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/SmmCorePerformanceLib/SmmCorePerformanceLibInternal.h
@@ -0,0 +1,76 @@
+/** @file
+ Master header files for SmmCorePerformanceLib instance.
+
+ This header file holds the prototypes of the SMM Performance and PerformanceEx Protocol published by this
+ library instance at its constructor.
+
+Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _SMM_CORE_PERFORMANCE_LIB_INTERNAL_H_
+#define _SMM_CORE_PERFORMANCE_LIB_INTERNAL_H_
+
+
+#include <Guid/Performance.h>
+#include <Guid/PerformanceMeasurement.h>
+#include <Guid/ExtendedFirmwarePerformance.h>
+#include <Guid/FirmwarePerformance.h>
+#include <Guid/ZeroGuid.h>
+#include <Guid/EventGroup.h>
+
+#include <Library/SmmServicesTableLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PerformanceLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/TimerLib.h>
+#include <Library/PcdLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/SynchronizationLib.h>
+#include <Library/SmmMemLib.h>
+#include <Library/ReportStatusCodeLib.h>
+#include <Library/DxeServicesLib.h>
+#include <Library/PeCoffGetEntryPointLib.h>
+
+#include <Protocol/SmmBase2.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/DevicePathToText.h>
+
+//
+// Interface declarations for SMM PerformanceMeasurement Protocol.
+//
+/**
+ Create performance record with event description and a timestamp.
+
+ @param CallerIdentifier - Image handle or pointer to caller ID GUID.
+ @param Guid - Pointer to a GUID.
+ @param String - Pointer to a string describing the measurement.
+ @param TimeStamp - 64-bit time stamp.
+ @param Address - Pointer to a location in memory relevant to the measurement.
+ @param Identifier - Performance identifier describing the type of measurement.
+ @param Attribute - The attribute of the measurement. According to attribute can create a start
+ record for PERF_START/PERF_START_EX, or a end record for PERF_END/PERF_END_EX,
+ or a general record for other Perf macros.
+
+ @retval EFI_SUCCESS - Successfully created performance record.
+ @retval EFI_OUT_OF_RESOURCES - Ran out of space to store the records.
+ @retval EFI_INVALID_PARAMETER - Invalid parameter passed to function - NULL
+ pointer or invalid PerfId.
+**/
+EFI_STATUS
+EFIAPI
+CreatePerformanceMeasurement(
+ IN CONST VOID *CallerIdentifier, OPTIONAL
+ IN CONST VOID *Guid, OPTIONAL
+ IN CONST CHAR8 *String, OPTIONAL
+ IN UINT64 TimeStamp, OPTIONAL
+ IN UINT64 Address, OPTIONAL
+ IN UINT32 Identifier,
+ IN PERF_MEASUREMENT_ATTRIBUTE Attribute
+ );
+
+#endif