MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-)
Fix smm perf issue in DxeCorePerformanceLib. In
current code logic, total SMM perf record is copied
multiple times to FPDT table if multiple ReadyToBoot
events are signaled. This patch changes the function
InternalGetSmmPerfData() to only get newly generated
Smm perf data. Then previous generated Smm perf data
won't be copied to FPDT again.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4470
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Ray Ni <ray.ni@intel.com>
---
MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c | 32 +++++++++++++++++++-------------
1 file changed, 19 insertions(+), 13 deletions(-)
diff --git a/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c b/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
index ef14bc0738..2c7b960c30 100644
--- a/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
+++ b/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
@@ -10,7 +10,7 @@
This library is mainly used by DxeCore to start performance logging to ensure that
Performance Protocol is installed at the very beginning of DXE phase.
-Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2023, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -73,6 +73,7 @@ UINT8 *mPerformancePointer = NULL;
UINT8 *mBootRecordBuffer = NULL;
BOOLEAN mLockInsertRecord = FALSE;
CHAR8 *mDevicePathString = NULL;
+UINTN mBootRecordOffset = 0;
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *mDevicePathToText = NULL;
@@ -236,6 +237,7 @@ InternalGetSmmPerfData (
VOID *SmmBootRecordData;
UINTN SmmBootRecordDataSize;
UINTN ReservedMemSize;
+ UINTN CurrentRecordOffset;
//
// Collect boot records from SMM drivers.
@@ -297,28 +299,32 @@ InternalGetSmmPerfData (
}
//
- // Get all boot records
+ // Get boot records starting from mBootRecordOffset
//
- SmmCommData->Function = SMM_FPDT_FUNCTION_GET_BOOT_RECORD_DATA_BY_OFFSET;
- SmmBootRecordDataSize = SmmCommData->BootRecordSize;
- SmmBootRecordData = AllocateZeroPool (SmmBootRecordDataSize);
+ SmmCommData->Function = SMM_FPDT_FUNCTION_GET_BOOT_RECORD_DATA_BY_OFFSET;
+ SmmCommData->BootRecordOffset = mBootRecordOffset;
+ SmmBootRecordDataSize = SmmCommData->BootRecordSize - mBootRecordOffset;
+ SmmBootRecordData = AllocateZeroPool (SmmBootRecordDataSize);
+ CurrentRecordOffset = 0;
ASSERT (SmmBootRecordData != NULL);
- SmmCommData->BootRecordOffset = 0;
- SmmCommData->BootRecordData = (VOID *)((UINTN)SmmCommMemRegion->PhysicalStart + SMM_BOOT_RECORD_COMM_SIZE);
- SmmCommData->BootRecordSize = ReservedMemSize - SMM_BOOT_RECORD_COMM_SIZE;
- while (SmmCommData->BootRecordOffset < SmmBootRecordDataSize) {
+ SmmCommData->BootRecordData = (VOID *)((UINTN)SmmCommMemRegion->PhysicalStart + SMM_BOOT_RECORD_COMM_SIZE);
+ SmmCommData->BootRecordSize = ReservedMemSize - SMM_BOOT_RECORD_COMM_SIZE;
+ while (CurrentRecordOffset < SmmBootRecordDataSize) {
Status = Communication->Communicate (Communication, SmmBootRecordCommBuffer, &CommSize);
ASSERT_EFI_ERROR (Status);
ASSERT_EFI_ERROR (SmmCommData->ReturnStatus);
- if (SmmCommData->BootRecordOffset + SmmCommData->BootRecordSize > SmmBootRecordDataSize) {
- CopyMem ((UINT8 *)SmmBootRecordData + SmmCommData->BootRecordOffset, SmmCommData->BootRecordData, SmmBootRecordDataSize - SmmCommData->BootRecordOffset);
+ if (CurrentRecordOffset + SmmCommData->BootRecordSize > SmmBootRecordDataSize) {
+ CopyMem ((UINT8 *)SmmBootRecordData + CurrentRecordOffset, SmmCommData->BootRecordData, SmmBootRecordDataSize - CurrentRecordOffset);
} else {
- CopyMem ((UINT8 *)SmmBootRecordData + SmmCommData->BootRecordOffset, SmmCommData->BootRecordData, SmmCommData->BootRecordSize);
+ CopyMem ((UINT8 *)SmmBootRecordData + CurrentRecordOffset, SmmCommData->BootRecordData, SmmCommData->BootRecordSize);
}
- SmmCommData->BootRecordOffset = SmmCommData->BootRecordOffset + SmmCommData->BootRecordSize;
+ CurrentRecordOffset += SmmCommData->BootRecordSize;
+ SmmCommData->BootRecordOffset += SmmCommData->BootRecordSize;
}
+ mBootRecordOffset = SmmCommData->BootRecordOffset;
+
*SmmPerfData = SmmBootRecordData;
*SmmPerfDataSize = SmmBootRecordDataSize;
}
--
2.31.1.windows.1
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-=-=-=-=-=-=-=-=-=-=-=-2 comments as follows, starting with "[ray" @@ -73,6 +73,7 @@ UINT8 *mPerformancePointer = NULL; UINT8 *mBootRecordBuffer = NULL; BOOLEAN mLockInsertRecord = FALSE; CHAR8 *mDevicePathString = NULL; +UINTN mBootRecordOffset = 0; [ray.1] How about mSmmBootRecordOffset? EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *mDevicePathToText = NULL; @@ -236,6 +237,7 @@ InternalGetSmmPerfData ( VOID *SmmBootRecordData; UINTN SmmBootRecordDataSize; UINTN ReservedMemSize; + UINTN CurrentRecordOffset; [ray.2] How about "SmmBootRecordDataRetrieved"? -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#108051): https://edk2.groups.io/g/devel/message/108051 Mute This Topic: https://groups.io/mt/100931879/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/leave/3901457/1787277/102458076/xyzzy [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
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