Our new performance infrastructure can support to dump performance
date form ACPI table in OS. So we can remove the old pref code to
write performance data to OS.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | 131 ---------------------
.../Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf | 3 +-
2 files changed, 1 insertion(+), 133 deletions(-)
diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
index d7d2a4d..4d77689 100644
--- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
+++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
@@ -20,11 +20,10 @@
#include <PiPei.h>
#include <Guid/AcpiS3Context.h>
#include <Guid/BootScriptExecutorVariable.h>
-#include <Guid/Performance.h>
#include <Guid/ExtendedFirmwarePerformance.h>
#include <Guid/EndOfS3Resume.h>
#include <Ppi/ReadOnlyVariable2.h>
#include <Ppi/S3Resume2.h>
#include <Ppi/SmmAccess.h>
@@ -284,136 +283,10 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {
GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR mGdt = {
sizeof (mGdtEntries) - 1,
(UINTN) mGdtEntries
};
-/**
- Performance measure function to get S3 detailed performance data.
-
- This function will getS3 detailed performance data and saved in pre-reserved ACPI memory.
-**/
-VOID
-WriteToOsS3PerformanceData (
- VOID
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
- PERF_HEADER *PerfHeader;
- PERF_DATA *PerfData;
- UINT64 Ticker;
- UINTN Index;
- EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;
- UINTN VarSize;
- UINTN LogEntryKey;
- CONST VOID *Handle;
- CONST CHAR8 *Token;
- CONST CHAR8 *Module;
- UINT64 StartTicker;
- UINT64 EndTicker;
- UINT64 StartValue;
- UINT64 EndValue;
- BOOLEAN CountUp;
- UINT64 Freq;
-
- //
- // Retrieve time stamp count as early as possible
- //
- Ticker = GetPerformanceCounter ();
-
- Freq = GetPerformanceCounterProperties (&StartValue, &EndValue);
-
- Freq = DivU64x32 (Freq, 1000);
-
- Status = PeiServicesLocatePpi (
- &gEfiPeiReadOnlyVariable2PpiGuid,
- 0,
- NULL,
- (VOID **) &VariableServices
- );
- if (EFI_ERROR (Status)) {
- return;
- }
-
- VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
- Status = VariableServices->GetVariable (
- VariableServices,
- L"PerfDataMemAddr",
- &gPerformanceProtocolGuid,
- NULL,
- &VarSize,
- &mAcpiLowMemoryBase
- );
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "Fail to retrieve variable to log S3 performance data \n"));
- return;
- }
-
- PerfHeader = (PERF_HEADER *) (UINTN) mAcpiLowMemoryBase;
-
- if (PerfHeader->Signiture != PERFORMANCE_SIGNATURE) {
- DEBUG ((EFI_D_ERROR, "Performance data in ACPI memory get corrupted! \n"));
- return;
- }
-
- //
- // Record total S3 resume time.
- //
- if (EndValue >= StartValue) {
- PerfHeader->S3Resume = Ticker - StartValue;
- CountUp = TRUE;
- } else {
- PerfHeader->S3Resume = StartValue - Ticker;
- CountUp = FALSE;
- }
-
- //
- // Get S3 detailed performance data
- //
- Index = 0;
- LogEntryKey = 0;
- while ((LogEntryKey = GetPerformanceMeasurement (
- LogEntryKey,
- &Handle,
- &Token,
- &Module,
- &StartTicker,
- &EndTicker)) != 0) {
- if (EndTicker != 0) {
- PerfData = &PerfHeader->S3Entry[Index];
-
- //
- // Use File Handle to specify the different performance log for PEIM.
- // File Handle is the base address of PEIM FFS file.
- //
- if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {
- AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);
- } else {
- AsciiStrnCpyS (PerfData->Token, PERF_TOKEN_SIZE, Token, PERF_TOKEN_LENGTH);
- }
- if (StartTicker == 1) {
- StartTicker = StartValue;
- }
- if (EndTicker == 1) {
- EndTicker = StartValue;
- }
- Ticker = CountUp? (EndTicker - StartTicker) : (StartTicker - EndTicker);
- PerfData->Duration = (UINT32) DivU64x32 (Ticker, (UINT32) Freq);
-
- //
- // Only Record > 1ms performance data so that more big performance can be recorded.
- //
- if ((Ticker > Freq) && (++Index >= PERF_PEI_ENTRY_MAX_NUM)) {
- //
- // Reach the maximum number of PEI performance log entries.
- //
- break;
- }
- }
- }
- PerfHeader->S3EntryNum = (UINT32) Index;
-}
/**
The function will check if current waking vector is long mode.
@param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
@@ -602,14 +475,10 @@ S3ResumeBootOs (
//
// report status code on S3 resume
//
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);
- PERF_CODE (
- WriteToOsS3PerformanceData ();
- );
-
AsmTransferControl = (ASM_TRANSFER_CONTROL)(UINTN)PeiS3ResumeState->AsmTransferControl;
if (Facs->XFirmwareWakingVector != 0) {
//
// Switch to native waking vector
//
diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
index 15fa2d1..9522ede 100644
--- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
+++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
@@ -3,11 +3,11 @@
#
# This module works with StandAloneBootScriptExecutor to S3 resume to OS.
# This module will excute the boot script saved during last boot and after that,
# control is passed to OS waking up handler.
#
-# Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
#
# This program and the accompanying materials are
# licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -71,11 +71,10 @@
PrintLib
[Guids]
gEfiBootScriptExecutorVariableGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
gEfiBootScriptExecutorContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
- gPerformanceProtocolGuid ## SOMETIMES_CONSUMES ## Variable:L"PerfDataMemAddr"
## SOMETIMES_CONSUMES ## HOB
## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
gEfiAcpiVariableGuid
gEfiAcpiS3ContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
gEdkiiEndOfS3ResumeGuid ## SOMETIMES_CONSUMES ## UNDEFINED # Used to do smm communication
--
1.9.5.msysgit.1
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
On 01/24/18 09:01, Dandan Bi wrote:
> Our new performance infrastructure can support to dump performance
> date form ACPI table in OS. So we can remove the old pref code to
> write performance data to OS.
>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Liming Gao <liming.gao@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Dandan Bi <dandan.bi@intel.com>
> ---
> UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | 131 ---------------------
> .../Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf | 3 +-
> 2 files changed, 1 insertion(+), 133 deletions(-)
>
> diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
> index d7d2a4d..4d77689 100644
> --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
> +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
> @@ -20,11 +20,10 @@
>
> #include <PiPei.h>
>
> #include <Guid/AcpiS3Context.h>
> #include <Guid/BootScriptExecutorVariable.h>
> -#include <Guid/Performance.h>
> #include <Guid/ExtendedFirmwarePerformance.h>
> #include <Guid/EndOfS3Resume.h>
> #include <Ppi/ReadOnlyVariable2.h>
> #include <Ppi/S3Resume2.h>
> #include <Ppi/SmmAccess.h>
> @@ -284,136 +283,10 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {
> GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR mGdt = {
> sizeof (mGdtEntries) - 1,
> (UINTN) mGdtEntries
> };
>
> -/**
> - Performance measure function to get S3 detailed performance data.
> -
> - This function will getS3 detailed performance data and saved in pre-reserved ACPI memory.
> -**/
> -VOID
> -WriteToOsS3PerformanceData (
> - VOID
> - )
> -{
> - EFI_STATUS Status;
> - EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
> - PERF_HEADER *PerfHeader;
> - PERF_DATA *PerfData;
> - UINT64 Ticker;
> - UINTN Index;
> - EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;
> - UINTN VarSize;
> - UINTN LogEntryKey;
> - CONST VOID *Handle;
> - CONST CHAR8 *Token;
> - CONST CHAR8 *Module;
> - UINT64 StartTicker;
> - UINT64 EndTicker;
> - UINT64 StartValue;
> - UINT64 EndValue;
> - BOOLEAN CountUp;
> - UINT64 Freq;
> -
> - //
> - // Retrieve time stamp count as early as possible
> - //
> - Ticker = GetPerformanceCounter ();
> -
> - Freq = GetPerformanceCounterProperties (&StartValue, &EndValue);
> -
> - Freq = DivU64x32 (Freq, 1000);
> -
> - Status = PeiServicesLocatePpi (
> - &gEfiPeiReadOnlyVariable2PpiGuid,
> - 0,
> - NULL,
> - (VOID **) &VariableServices
> - );
> - if (EFI_ERROR (Status)) {
> - return;
> - }
> -
> - VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
> - Status = VariableServices->GetVariable (
> - VariableServices,
> - L"PerfDataMemAddr",
> - &gPerformanceProtocolGuid,
> - NULL,
> - &VarSize,
> - &mAcpiLowMemoryBase
> - );
> - if (EFI_ERROR (Status)) {
> - DEBUG ((EFI_D_ERROR, "Fail to retrieve variable to log S3 performance data \n"));
> - return;
> - }
> -
> - PerfHeader = (PERF_HEADER *) (UINTN) mAcpiLowMemoryBase;
> -
> - if (PerfHeader->Signiture != PERFORMANCE_SIGNATURE) {
> - DEBUG ((EFI_D_ERROR, "Performance data in ACPI memory get corrupted! \n"));
> - return;
> - }
> -
> - //
> - // Record total S3 resume time.
> - //
> - if (EndValue >= StartValue) {
> - PerfHeader->S3Resume = Ticker - StartValue;
> - CountUp = TRUE;
> - } else {
> - PerfHeader->S3Resume = StartValue - Ticker;
> - CountUp = FALSE;
> - }
> -
> - //
> - // Get S3 detailed performance data
> - //
> - Index = 0;
> - LogEntryKey = 0;
> - while ((LogEntryKey = GetPerformanceMeasurement (
> - LogEntryKey,
> - &Handle,
> - &Token,
> - &Module,
> - &StartTicker,
> - &EndTicker)) != 0) {
> - if (EndTicker != 0) {
> - PerfData = &PerfHeader->S3Entry[Index];
> -
> - //
> - // Use File Handle to specify the different performance log for PEIM.
> - // File Handle is the base address of PEIM FFS file.
> - //
> - if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {
> - AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);
> - } else {
> - AsciiStrnCpyS (PerfData->Token, PERF_TOKEN_SIZE, Token, PERF_TOKEN_LENGTH);
> - }
> - if (StartTicker == 1) {
> - StartTicker = StartValue;
> - }
> - if (EndTicker == 1) {
> - EndTicker = StartValue;
> - }
> - Ticker = CountUp? (EndTicker - StartTicker) : (StartTicker - EndTicker);
> - PerfData->Duration = (UINT32) DivU64x32 (Ticker, (UINT32) Freq);
> -
> - //
> - // Only Record > 1ms performance data so that more big performance can be recorded.
> - //
> - if ((Ticker > Freq) && (++Index >= PERF_PEI_ENTRY_MAX_NUM)) {
> - //
> - // Reach the maximum number of PEI performance log entries.
> - //
> - break;
> - }
> - }
> - }
> - PerfHeader->S3EntryNum = (UINT32) Index;
> -}
>
> /**
> The function will check if current waking vector is long mode.
>
> @param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
> @@ -602,14 +475,10 @@ S3ResumeBootOs (
> //
> // report status code on S3 resume
> //
> REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);
>
> - PERF_CODE (
> - WriteToOsS3PerformanceData ();
> - );
> -
> AsmTransferControl = (ASM_TRANSFER_CONTROL)(UINTN)PeiS3ResumeState->AsmTransferControl;
> if (Facs->XFirmwareWakingVector != 0) {
> //
> // Switch to native waking vector
> //
> diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
> index 15fa2d1..9522ede 100644
> --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
> +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
> @@ -3,11 +3,11 @@
> #
> # This module works with StandAloneBootScriptExecutor to S3 resume to OS.
> # This module will excute the boot script saved during last boot and after that,
> # control is passed to OS waking up handler.
> #
> -# Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
> +# Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
> # Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
> #
> # This program and the accompanying materials are
> # licensed and made available under the terms and conditions of the BSD License
> # which accompanies this distribution. The full text of the license may be found at
> @@ -71,11 +71,10 @@
> PrintLib
>
> [Guids]
> gEfiBootScriptExecutorVariableGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
> gEfiBootScriptExecutorContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
> - gPerformanceProtocolGuid ## SOMETIMES_CONSUMES ## Variable:L"PerfDataMemAddr"
> ## SOMETIMES_CONSUMES ## HOB
> ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
> gEfiAcpiVariableGuid
> gEfiAcpiS3ContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
> gEdkiiEndOfS3ResumeGuid ## SOMETIMES_CONSUMES ## UNDEFINED # Used to do smm communication
>
Looks good to me.
Specifically for use in OVMF, this logic has always been inactive, since
we don't yet have PEI-phase (r/o) variable access.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Thanks
Laszlo
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small update to my review comments:
On 01/24/18 16:48, Laszlo Ersek wrote:
> On 01/24/18 09:01, Dandan Bi wrote:
>> Our new performance infrastructure can support to dump performance
>> date form ACPI table in OS. So we can remove the old pref code to
>> write performance data to OS.
Again, please reference the TianoCore BZ and/or commit hashes and/or
mailing list subjects/URLs, for specifying "new performance infrastructure".
With that change, my R-b stands.
Thanks
Laszlo
>>
>> Cc: Eric Dong <eric.dong@intel.com>
>> Cc: Laszlo Ersek <lersek@redhat.com>
>> Cc: Liming Gao <liming.gao@intel.com>
>> Contributed-under: TianoCore Contribution Agreement 1.1
>> Signed-off-by: Dandan Bi <dandan.bi@intel.com>
>> ---
>> UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | 131 ---------------------
>> .../Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf | 3 +-
>> 2 files changed, 1 insertion(+), 133 deletions(-)
>>
>> diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
>> index d7d2a4d..4d77689 100644
>> --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
>> +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c
>> @@ -20,11 +20,10 @@
>>
>> #include <PiPei.h>
>>
>> #include <Guid/AcpiS3Context.h>
>> #include <Guid/BootScriptExecutorVariable.h>
>> -#include <Guid/Performance.h>
>> #include <Guid/ExtendedFirmwarePerformance.h>
>> #include <Guid/EndOfS3Resume.h>
>> #include <Ppi/ReadOnlyVariable2.h>
>> #include <Ppi/S3Resume2.h>
>> #include <Ppi/SmmAccess.h>
>> @@ -284,136 +283,10 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {
>> GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR mGdt = {
>> sizeof (mGdtEntries) - 1,
>> (UINTN) mGdtEntries
>> };
>>
>> -/**
>> - Performance measure function to get S3 detailed performance data.
>> -
>> - This function will getS3 detailed performance data and saved in pre-reserved ACPI memory.
>> -**/
>> -VOID
>> -WriteToOsS3PerformanceData (
>> - VOID
>> - )
>> -{
>> - EFI_STATUS Status;
>> - EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
>> - PERF_HEADER *PerfHeader;
>> - PERF_DATA *PerfData;
>> - UINT64 Ticker;
>> - UINTN Index;
>> - EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;
>> - UINTN VarSize;
>> - UINTN LogEntryKey;
>> - CONST VOID *Handle;
>> - CONST CHAR8 *Token;
>> - CONST CHAR8 *Module;
>> - UINT64 StartTicker;
>> - UINT64 EndTicker;
>> - UINT64 StartValue;
>> - UINT64 EndValue;
>> - BOOLEAN CountUp;
>> - UINT64 Freq;
>> -
>> - //
>> - // Retrieve time stamp count as early as possible
>> - //
>> - Ticker = GetPerformanceCounter ();
>> -
>> - Freq = GetPerformanceCounterProperties (&StartValue, &EndValue);
>> -
>> - Freq = DivU64x32 (Freq, 1000);
>> -
>> - Status = PeiServicesLocatePpi (
>> - &gEfiPeiReadOnlyVariable2PpiGuid,
>> - 0,
>> - NULL,
>> - (VOID **) &VariableServices
>> - );
>> - if (EFI_ERROR (Status)) {
>> - return;
>> - }
>> -
>> - VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
>> - Status = VariableServices->GetVariable (
>> - VariableServices,
>> - L"PerfDataMemAddr",
>> - &gPerformanceProtocolGuid,
>> - NULL,
>> - &VarSize,
>> - &mAcpiLowMemoryBase
>> - );
>> - if (EFI_ERROR (Status)) {
>> - DEBUG ((EFI_D_ERROR, "Fail to retrieve variable to log S3 performance data \n"));
>> - return;
>> - }
>> -
>> - PerfHeader = (PERF_HEADER *) (UINTN) mAcpiLowMemoryBase;
>> -
>> - if (PerfHeader->Signiture != PERFORMANCE_SIGNATURE) {
>> - DEBUG ((EFI_D_ERROR, "Performance data in ACPI memory get corrupted! \n"));
>> - return;
>> - }
>> -
>> - //
>> - // Record total S3 resume time.
>> - //
>> - if (EndValue >= StartValue) {
>> - PerfHeader->S3Resume = Ticker - StartValue;
>> - CountUp = TRUE;
>> - } else {
>> - PerfHeader->S3Resume = StartValue - Ticker;
>> - CountUp = FALSE;
>> - }
>> -
>> - //
>> - // Get S3 detailed performance data
>> - //
>> - Index = 0;
>> - LogEntryKey = 0;
>> - while ((LogEntryKey = GetPerformanceMeasurement (
>> - LogEntryKey,
>> - &Handle,
>> - &Token,
>> - &Module,
>> - &StartTicker,
>> - &EndTicker)) != 0) {
>> - if (EndTicker != 0) {
>> - PerfData = &PerfHeader->S3Entry[Index];
>> -
>> - //
>> - // Use File Handle to specify the different performance log for PEIM.
>> - // File Handle is the base address of PEIM FFS file.
>> - //
>> - if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {
>> - AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);
>> - } else {
>> - AsciiStrnCpyS (PerfData->Token, PERF_TOKEN_SIZE, Token, PERF_TOKEN_LENGTH);
>> - }
>> - if (StartTicker == 1) {
>> - StartTicker = StartValue;
>> - }
>> - if (EndTicker == 1) {
>> - EndTicker = StartValue;
>> - }
>> - Ticker = CountUp? (EndTicker - StartTicker) : (StartTicker - EndTicker);
>> - PerfData->Duration = (UINT32) DivU64x32 (Ticker, (UINT32) Freq);
>> -
>> - //
>> - // Only Record > 1ms performance data so that more big performance can be recorded.
>> - //
>> - if ((Ticker > Freq) && (++Index >= PERF_PEI_ENTRY_MAX_NUM)) {
>> - //
>> - // Reach the maximum number of PEI performance log entries.
>> - //
>> - break;
>> - }
>> - }
>> - }
>> - PerfHeader->S3EntryNum = (UINT32) Index;
>> -}
>>
>> /**
>> The function will check if current waking vector is long mode.
>>
>> @param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
>> @@ -602,14 +475,10 @@ S3ResumeBootOs (
>> //
>> // report status code on S3 resume
>> //
>> REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);
>>
>> - PERF_CODE (
>> - WriteToOsS3PerformanceData ();
>> - );
>> -
>> AsmTransferControl = (ASM_TRANSFER_CONTROL)(UINTN)PeiS3ResumeState->AsmTransferControl;
>> if (Facs->XFirmwareWakingVector != 0) {
>> //
>> // Switch to native waking vector
>> //
>> diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
>> index 15fa2d1..9522ede 100644
>> --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
>> +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf
>> @@ -3,11 +3,11 @@
>> #
>> # This module works with StandAloneBootScriptExecutor to S3 resume to OS.
>> # This module will excute the boot script saved during last boot and after that,
>> # control is passed to OS waking up handler.
>> #
>> -# Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
>> +# Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
>> # Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
>> #
>> # This program and the accompanying materials are
>> # licensed and made available under the terms and conditions of the BSD License
>> # which accompanies this distribution. The full text of the license may be found at
>> @@ -71,11 +71,10 @@
>> PrintLib
>>
>> [Guids]
>> gEfiBootScriptExecutorVariableGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
>> gEfiBootScriptExecutorContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
>> - gPerformanceProtocolGuid ## SOMETIMES_CONSUMES ## Variable:L"PerfDataMemAddr"
>> ## SOMETIMES_CONSUMES ## HOB
>> ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
>> gEfiAcpiVariableGuid
>> gEfiAcpiS3ContextGuid ## SOMETIMES_CONSUMES ## UNDEFINED # LockBox
>> gEdkiiEndOfS3ResumeGuid ## SOMETIMES_CONSUMES ## UNDEFINED # Used to do smm communication
>>
>
> Looks good to me.
>
> Specifically for use in OVMF, this logic has always been inactive, since
> we don't yet have PEI-phase (r/o) variable access.
>
> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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