1c51a268b7
Adds a new library instance to support logging performance data in Standalone MM. - Add StandaloneMmPerformanceLib instance - Move common MM logic to a new file `SmmPerformanceLibInternal.c` - Since the library largely defers most logic to the performance measurement protocol a large degree of code can be shared between Standalone MM and Traditional MM. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/** @file
|
|
Performance Library used in Standalone MM phase.
|
|
|
|
This library instance provides infrastructure for Standalone MM drivers to log performance
|
|
data. It consumes the MM PerformanceEx or Performance Protocol to log performance data. If
|
|
both MM PerformanceEx and Performance Protocol are not available, it does not log any
|
|
performance information.
|
|
|
|
Copyright (c) 2011 - 2023, Intel Corporation. All rights reserved.<BR>
|
|
Copyright (c) Microsoft Corporation.
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include <PiMm.h>
|
|
#include <Guid/EventGroup.h>
|
|
#include "SmmPerformanceLibInternal.h"
|
|
|
|
/**
|
|
The constructor function initializes the Performance Measurement Enable flag.
|
|
|
|
@param[in] ImageHandle The firmware allocated handle for the EFI image.
|
|
@param[in] MmSystemTable A pointer to the MM System Table.
|
|
|
|
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
StandaloneMmPerformanceLibConstructor (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_MM_SYSTEM_TABLE *MmSystemTable
|
|
)
|
|
{
|
|
return RegisterExitBootServicesCallback (&gEfiEventExitBootServicesGuid);
|
|
}
|
|
|
|
/**
|
|
The destructor function frees resources allocated by constructor.
|
|
|
|
@param[in] ImageHandle The firmware allocated handle for the EFI image.
|
|
@param[in] MmSystemTable A pointer to the MM System Table.
|
|
|
|
@retval EFI_SUCCESS The destructor always returns EFI_SUCCESS.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
StandaloneMmPerformanceLibDestructor (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_MM_SYSTEM_TABLE *MmSystemTable
|
|
)
|
|
{
|
|
return UnregisterExitBootServicesCallback (&gEfiEventExitBootServicesGuid);
|
|
}
|