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MdeModulePkg: Update Performance instances to use new protocol

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Update Performance instances in MdeModulePkg to use new
PerformanceMeasurement protocol.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Bi, Dandan
2018-06-22 16:56:16 +08:00
committed by Liming Gao
parent 56f7741e27
commit 137fb13deb
10 changed files with 279 additions and 1074 deletions
Download Patch File Download Diff File Expand all files Collapse all files

325
MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
View File

@@ -82,21 +82,10 @@ BOOLEAN mLockInsertRecord = FALSE;
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *mDevicePathToText = NULL;
//
// Interfaces for Performance Protocol.
// Interfaces for PerformanceMeasurement Protocol.
//
PERFORMANCE_PROTOCOL mPerformanceInterface = {
StartGauge,
EndGauge,
GetGauge
};
//
// Interfaces for PerformanceEx Protocol.
//
PERFORMANCE_EX_PROTOCOL mPerformanceExInterface = {
StartGaugeEx,
EndGaugeEx,
GetGaugeEx
EDKII_PERFORMANCE_MEASUREMENT_PROTOCOL mPerformanceMeasurementInterface = {
CreatePerformanceMeasurement,
};
PERFORMANCE_PROPERTY mPerformanceProperty;
@@ -799,18 +788,11 @@ InsertFpdtMeasurement (
UseModuleName = FALSE;
ZeroMem (ModuleName, sizeof (ModuleName));
if (mLockInsertRecord) {
return EFI_UNSUPPORTED;
}
mLockInsertRecord = TRUE;
//
// Get record info (type, size, ProgressID and Module Guid).
//
Status = GetFpdtRecordInfo (IsStart, Handle, Token, Module, &RecordInfo, &UseModuleName);
if (EFI_ERROR (Status)) {
mLockInsertRecord = FALSE;
return Status;
}
@@ -824,7 +806,6 @@ InsertFpdtMeasurement (
// If input ID doesn't follow the rule, we will adjust it.
//
if ((Identifier != 0) && (IsKnownID (Identifier)) && (!IsKnownTokens (Token))) {
mLockInsertRecord = FALSE;
return EFI_UNSUPPORTED;
} else if ((Identifier != 0) && (!IsKnownID (Identifier)) && (!IsKnownTokens (Token))) {
if (IsStart && ((Identifier & 0x000F) != 0)) {
@@ -844,7 +825,6 @@ InsertFpdtMeasurement (
DEBUG ((DEBUG_INFO, "DxeCorePerformanceLib: No enough space to save boot records\n"));
mLackSpaceIsReported = TRUE;
}
mLockInsertRecord = FALSE;
return EFI_OUT_OF_RESOURCES;
} else {
//
@@ -866,7 +846,6 @@ InsertFpdtMeasurement (
);
if (mPerformancePointer == NULL) {
mLockInsertRecord = FALSE;
return EFI_OUT_OF_RESOURCES;
}
mMaxPerformanceLength = mPerformanceLength + RecordInfo.RecordSize + FIRMWARE_RECORD_BUFFER;
@@ -963,11 +942,9 @@ InsertFpdtMeasurement (
//
// Record is not supported in current DXE phase, return EFI_ABORTED
//
mLockInsertRecord = FALSE;
return EFI_UNSUPPORTED;
}
mLockInsertRecord = FALSE;
return EFI_SUCCESS;
}
@@ -1063,219 +1040,6 @@ ReportFpdtRecordBuffer (
}
}
/**
Adds a record at the end of the performance measurement log
that records the start time of a performance measurement.
Adds a record to the end of the performance measurement log
that contains the Handle, Token, Module and Identifier.
The end time of the new record must be set to zero.
If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.
If TimeStamp is zero, the start time in the record is filled in with the value
read from the current time stamp.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@param Identifier 32-bit identifier. If the value is 0, the created record
is same as the one created by StartGauge of PERFORMANCE_PROTOCOL.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.
**/
EFI_STATUS
EFIAPI
StartGaugeEx (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp,
IN UINT32 Identifier
)
{
return InsertFpdtMeasurement (TRUE, Handle, Token, Module, TimeStamp, Identifier);
}
/**
Searches the performance measurement log from the beginning of the log
for the first matching record that contains a zero end time and fills in a valid end time.
Searches the performance measurement log from the beginning of the log
for the first record that matches Handle, Token, Module and Identifier and has an end time value of zero.
If the record can not be found then return EFI_NOT_FOUND.
If the record is found and TimeStamp is not zero,
then the end time in the record is filled in with the value specified by TimeStamp.
If the record is found and TimeStamp is zero, then the end time in the matching record
is filled in with the current time stamp value.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@param Identifier 32-bit identifier. If the value is 0, the found record
is same as the one found by EndGauge of PERFORMANCE_PROTOCOL.
@retval EFI_SUCCESS The end of the measurement was recorded.
@retval EFI_NOT_FOUND The specified measurement record could not be found.
**/
EFI_STATUS
EFIAPI
EndGaugeEx (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp,
IN UINT32 Identifier
)
{
return InsertFpdtMeasurement (FALSE, Handle, Token, Module, TimeStamp, Identifier);
}
/**
Retrieves a previously logged performance measurement.
It can also retrieve the log created by StartGauge and EndGauge of PERFORMANCE_PROTOCOL,
and then assign the Identifier with 0.
!!! Not support!!!
Retrieves the performance log entry from the performance log specified by LogEntryKey.
If it stands for a valid entry, then EFI_SUCCESS is returned and
GaugeDataEntryEx stores the pointer to that entry.
@param LogEntryKey The key for the previous performance measurement log entry.
If 0, then the first performance measurement log entry is retrieved.
@param GaugeDataEntryEx The indirect pointer to the extended gauge data entry specified by LogEntryKey
if the retrieval is successful.
@retval EFI_SUCCESS The GuageDataEntryEx is successfully found based on LogEntryKey.
@retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).
@retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).
@retval EFI_INVALIDE_PARAMETER GaugeDataEntryEx is NULL.
**/
EFI_STATUS
EFIAPI
GetGaugeEx (
IN UINTN LogEntryKey,
OUT GAUGE_DATA_ENTRY_EX **GaugeDataEntryEx
)
{
return EFI_UNSUPPORTED;
}
/**
Adds a record at the end of the performance measurement log
that records the start time of a performance measurement.
Adds a record to the end of the performance measurement log
that contains the Handle, Token, and Module.
The end time of the new record must be set to zero.
If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.
If TimeStamp is zero, the start time in the record is filled in with the value
read from the current time stamp.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.
**/
EFI_STATUS
EFIAPI
StartGauge (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp
)
{
return StartGaugeEx (Handle, Token, Module, TimeStamp, 0);
}
/**
Searches the performance measurement log from the beginning of the log
for the first matching record that contains a zero end time and fills in a valid end time.
Searches the performance measurement log from the beginning of the log
for the first record that matches Handle, Token, and Module and has an end time value of zero.
If the record can not be found then return EFI_NOT_FOUND.
If the record is found and TimeStamp is not zero,
then the end time in the record is filled in with the value specified by TimeStamp.
If the record is found and TimeStamp is zero, then the end time in the matching record
is filled in with the current time stamp value.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@retval EFI_SUCCESS The end of the measurement was recorded.
@retval EFI_NOT_FOUND The specified measurement record could not be found.
**/
EFI_STATUS
EFIAPI
EndGauge (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp
)
{
return EndGaugeEx (Handle, Token, Module, TimeStamp, 0);
}
/**
Retrieves a previously logged performance measurement.
It can also retrieve the log created by StartGaugeEx and EndGaugeEx of PERFORMANCE_EX_PROTOCOL,
and then eliminate the Identifier.
!!! Not support!!!
Retrieves the performance log entry from the performance log specified by LogEntryKey.
If it stands for a valid entry, then EFI_SUCCESS is returned and
GaugeDataEntry stores the pointer to that entry.
@param LogEntryKey The key for the previous performance measurement log entry.
If 0, then the first performance measurement log entry is retrieved.
@param GaugeDataEntry The indirect pointer to the gauge data entry specified by LogEntryKey
if the retrieval is successful.
@retval EFI_SUCCESS The GuageDataEntry is successfully found based on LogEntryKey.
@retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).
@retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).
@retval EFI_INVALIDE_PARAMETER GaugeDataEntry is NULL.
**/
EFI_STATUS
EFIAPI
GetGauge (
IN UINTN LogEntryKey,
OUT GAUGE_DATA_ENTRY **GaugeDataEntry
)
{
return EFI_UNSUPPORTED;
}
/**
The constructor function initializes Performance infrastructure for DXE phase.
@@ -1319,10 +1083,8 @@ DxeCorePerformanceLibConstructor (
Handle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
&gPerformanceProtocolGuid,
&mPerformanceInterface,
&gPerformanceExProtocolGuid,
&mPerformanceExInterface,
&gEdkiiPerformanceMeasurementProtocolGuid,
&mPerformanceMeasurementInterface,
NULL
);
ASSERT_EFI_ERROR (Status);
@@ -1359,6 +1121,55 @@ DxeCorePerformanceLibConstructor (
return EFI_SUCCESS;
}
/**
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,
IN CONST VOID *Guid, OPTIONAL
IN CONST CHAR8 *String, OPTIONAL
IN UINT64 TimeStamp,
IN UINT64 Address, OPTIONAL
IN UINT32 Identifier,
IN PERF_MEASUREMENT_ATTRIBUTE Attribute
)
{
EFI_STATUS Status;
Status = EFI_SUCCESS;
if (mLockInsertRecord) {
return EFI_INVALID_PARAMETER;
}
mLockInsertRecord = TRUE;
if (Attribute == PerfStartEntry) {
Status = InsertFpdtMeasurement (TRUE, CallerIdentifier, String, String, TimeStamp, Identifier);
} else if (Attribute == PerfEndEntry) {
Status = InsertFpdtMeasurement (FALSE, CallerIdentifier, String, String, TimeStamp, Identifier);
}
mLockInsertRecord = FALSE;
return Status;
}
/**
Adds a record at the end of the performance measurement log
that records the start time of a performance measurement.
@@ -1394,7 +1205,17 @@ StartPerformanceMeasurementEx (
IN UINT32 Identifier
)
{
return InsertFpdtMeasurement (TRUE, Handle, Token, Module, TimeStamp, Identifier);
CONST CHAR8 *String;
if (Token != NULL) {
String = Token;
} else if (Module != NULL) {
String = Module;
} else {
String = NULL;
}
return (RETURN_STATUS)CreatePerformanceMeasurement (Handle, NULL, String, TimeStamp, 0, Identifier, PerfStartEntry);
}
/**
@@ -1433,7 +1254,17 @@ EndPerformanceMeasurementEx (
IN UINT32 Identifier
)
{
return InsertFpdtMeasurement (FALSE, Handle, Token, Module, TimeStamp, Identifier);
CONST CHAR8 *String;
if (Token != NULL) {
String = Token;
} else if (Module != NULL) {
String = Module;
} else {
String = NULL;
}
return (RETURN_STATUS)CreatePerformanceMeasurement (Handle, NULL, String, TimeStamp, 0, Identifier, PerfEndEntry);
}
/**
@@ -1527,7 +1358,7 @@ StartPerformanceMeasurement (
IN UINT64 TimeStamp
)
{
return InsertFpdtMeasurement (TRUE, Handle, Token, Module, TimeStamp, 0);
return StartPerformanceMeasurementEx (Handle, Token, Module, TimeStamp, 0);
}
/**
@@ -1563,7 +1394,7 @@ EndPerformanceMeasurement (
IN UINT64 TimeStamp
)
{
return InsertFpdtMeasurement (FALSE, Handle, Token, Module, TimeStamp, 0);
return EndPerformanceMeasurementEx (Handle, Token, Module, TimeStamp, 0);
}
/**

6
MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.inf
View File

@@ -67,18 +67,14 @@
[Guids]
## SOMETIMES_CONSUMES ## HOB
## PRODUCES ## UNDEFINED # Install protocol
## PRODUCES ## SystemTable
gPerformanceProtocolGuid
## SOMETIMES_CONSUMES ## HOB
## PRODUCES ## UNDEFINED # Install protocol
gPerformanceExProtocolGuid
gZeroGuid ## SOMETIMES_CONSUMES ## GUID
gEfiFirmwarePerformanceGuid ## SOMETIMES_PRODUCES ## UNDEFINED # StatusCode Data
gEdkiiFpdtExtendedFirmwarePerformanceGuid ## SOMETIMES_CONSUMES ## HOB # StatusCode Data
gEfiEventReadyToBootGuid ## CONSUMES ## Event
gEdkiiPiSmmCommunicationRegionTableGuid ## SOMETIMES_CONSUMES ## SystemTable
gEdkiiPerformanceMeasurementProtocolGuid ## PRODUCES ## UNDEFINED # Install protocol
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPerformanceLibraryPropertyMask ## CONSUMES

212
MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLibInternal.h
View File

@@ -22,6 +22,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <PiDxe.h>
#include <Guid/Performance.h>
#include <Guid/PerformanceMeasurement.h>
#include <Guid/ExtendedFirmwarePerformance.h>
#include <Guid/ZeroGuid.h>
#include <Guid/EventGroup.h>
@@ -49,201 +50,34 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Library/DxeServicesLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
//
// Interface declarations for PerformanceEx Protocol.
//
/**
Adds a record at the end of the performance measurement log
that records the start time of a performance measurement.
Create performance record with event description and a timestamp.
Adds a record to the end of the performance measurement log
that contains the Handle, Token, Module and Identifier.
The end time of the new record must be set to zero.
If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.
If TimeStamp is zero, the start time in the record is filled in with the value
read from the current time stamp.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@param Identifier 32-bit identifier. If the value is 0, the created record
is same as the one created by StartGauge of PERFORMANCE_PROTOCOL.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.
@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
StartGaugeEx (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp,
IN UINT32 Identifier
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
);
/**
Searches the performance measurement log from the beginning of the log
for the first matching record that contains a zero end time and fills in a valid end time.
Searches the performance measurement log from the beginning of the log
for the first record that matches Handle, Token, Module and Identifier and has an end time value of zero.
If the record can not be found then return EFI_NOT_FOUND.
If the record is found and TimeStamp is not zero,
then the end time in the record is filled in with the value specified by TimeStamp.
If the record is found and TimeStamp is zero, then the end time in the matching record
is filled in with the current time stamp value.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@param Identifier 32-bit identifier. If the value is 0, the found record
is same as the one found by EndGauge of PERFORMANCE_PROTOCOL.
@retval EFI_SUCCESS The end of the measurement was recorded.
@retval EFI_NOT_FOUND The specified measurement record could not be found.
**/
EFI_STATUS
EFIAPI
EndGaugeEx (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp,
IN UINT32 Identifier
);
/**
Retrieves a previously logged performance measurement.
It can also retrieve the log created by StartGauge and EndGauge of PERFORMANCE_PROTOCOL,
and then assign the Identifier with 0.
Retrieves the performance log entry from the performance log specified by LogEntryKey.
If it stands for a valid entry, then EFI_SUCCESS is returned and
GaugeDataEntryEx stores the pointer to that entry.
@param LogEntryKey The key for the previous performance measurement log entry.
If 0, then the first performance measurement log entry is retrieved.
@param GaugeDataEntryEx The indirect pointer to the extended gauge data entry specified by LogEntryKey
if the retrieval is successful.
@retval EFI_SUCCESS The GuageDataEntryEx is successfully found based on LogEntryKey.
@retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).
@retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).
@retval EFI_INVALIDE_PARAMETER GaugeDataEntryEx is NULL.
**/
EFI_STATUS
EFIAPI
GetGaugeEx (
IN UINTN LogEntryKey,
OUT GAUGE_DATA_ENTRY_EX **GaugeDataEntryEx
);
//
// Interface declarations for Performance Protocol.
//
/**
Adds a record at the end of the performance measurement log
that records the start time of a performance measurement.
Adds a record to the end of the performance measurement log
that contains the Handle, Token, and Module.
The end time of the new record must be set to zero.
If TimeStamp is not zero, then TimeStamp is used to fill in the start time in the record.
If TimeStamp is zero, the start time in the record is filled in with the value
read from the current time stamp.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_OUT_OF_RESOURCES There are not enough resources to record the measurement.
**/
EFI_STATUS
EFIAPI
StartGauge (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp
);
/**
Searches the performance measurement log from the beginning of the log
for the first matching record that contains a zero end time and fills in a valid end time.
Searches the performance measurement log from the beginning of the log
for the first record that matches Handle, Token, and Module and has an end time value of zero.
If the record can not be found then return EFI_NOT_FOUND.
If the record is found and TimeStamp is not zero,
then the end time in the record is filled in with the value specified by TimeStamp.
If the record is found and TimeStamp is zero, then the end time in the matching record
is filled in with the current time stamp value.
@param Handle Pointer to environment specific context used
to identify the component being measured.
@param Token Pointer to a Null-terminated ASCII string
that identifies the component being measured.
@param Module Pointer to a Null-terminated ASCII string
that identifies the module being measured.
@param TimeStamp 64-bit time stamp.
@retval EFI_SUCCESS The end of the measurement was recorded.
@retval EFI_NOT_FOUND The specified measurement record could not be found.
**/
EFI_STATUS
EFIAPI
EndGauge (
IN CONST VOID *Handle, OPTIONAL
IN CONST CHAR8 *Token, OPTIONAL
IN CONST CHAR8 *Module, OPTIONAL
IN UINT64 TimeStamp
);
/**
Retrieves a previously logged performance measurement.
It can also retrieve the log created by StartGaugeEx and EndGaugeEx of PERFORMANCE_EX_PROTOCOL,
and then eliminate the Identifier.
Retrieves the performance log entry from the performance log specified by LogEntryKey.
If it stands for a valid entry, then EFI_SUCCESS is returned and
GaugeDataEntry stores the pointer to that entry.
@param LogEntryKey The key for the previous performance measurement log entry.
If 0, then the first performance measurement log entry is retrieved.
@param GaugeDataEntry The indirect pointer to the gauge data entry specified by LogEntryKey
if the retrieval is successful.
@retval EFI_SUCCESS The GuageDataEntry is successfully found based on LogEntryKey.
@retval EFI_NOT_FOUND The LogEntryKey is the last entry (equals to the total entry number).
@retval EFI_INVALIDE_PARAMETER The LogEntryKey is not a valid entry (greater than the total entry number).
@retval EFI_INVALIDE_PARAMETER GaugeDataEntry is NULL.
**/
EFI_STATUS
EFIAPI
GetGauge (
IN UINTN LogEntryKey,
OUT GAUGE_DATA_ENTRY **GaugeDataEntry
);
#endif