diff options
Diffstat (limited to 'MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c')
| -rw-r--r-- | MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c | 150 |
1 files changed, 1 insertions, 149 deletions
diff --git a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c index ecadef8711..47db9a2fc0 100644 --- a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c +++ b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceCommon.c @@ -11,7 +11,7 @@ FpdtSmiHandler() will receive untrusted input and do basic validation.
- Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2011 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -29,20 +29,12 @@ #include <Library/LockBoxLib.h>
#include <Library/PcdLib.h>
#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/SynchronizationLib.h>
#include "FirmwarePerformanceCommon.h"
-SMM_BOOT_PERFORMANCE_TABLE *mMmBootPerformanceTable = NULL;
EFI_MM_RSC_HANDLER_PROTOCOL *mRscHandlerProtocol = NULL;
UINT64 mSuspendStartTime = 0;
BOOLEAN mS3SuspendLockBoxSaved = FALSE;
-UINT32 mBootRecordSize = 0;
-UINT8 *mBootRecordBuffer = NULL;
-
-SPIN_LOCK mMmFpdtLock;
-BOOLEAN mMmramIsOutOfResource = FALSE;
/**
Report status code listener for MM. This is used to record the performance
@@ -84,21 +76,6 @@ FpdtStatusCodeListenerMm ( return EFI_UNSUPPORTED;
}
- //
- // Collect one or more Boot records in boot time
- //
- if (Data != NULL && CompareGuid (&Data->Type, &gEdkiiFpdtExtendedFirmwarePerformanceGuid)) {
- AcquireSpinLock (&mMmFpdtLock);
- //
- // Get the boot performance data.
- //
- CopyMem (&mMmBootPerformanceTable, Data + 1, Data->Size);
- mBootRecordBuffer = ((UINT8 *) (mMmBootPerformanceTable)) + sizeof (SMM_BOOT_PERFORMANCE_TABLE);
-
- ReleaseSpinLock (&mMmFpdtLock);
- return EFI_SUCCESS;
- }
-
if (Data != NULL && CompareGuid (&Data->Type, &gEfiFirmwarePerformanceGuid)) {
DEBUG ((DEBUG_ERROR, "FpdtStatusCodeListenerMm: Performance data reported through gEfiFirmwarePerformanceGuid will not be collected by FirmwarePerformanceDataTableMm\n"));
return EFI_UNSUPPORTED;
@@ -154,118 +131,6 @@ FpdtStatusCodeListenerMm ( }
/**
- Communication service SMI Handler entry.
-
- This SMI handler provides services for report MM boot records.
-
- Caution: This function may receive untrusted input.
- Communicate buffer and buffer size are external input, so this function will do basic validation.
-
- @param[in] DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
- @param[in] RegisterContext Points to an optional handler context which was specified when the
- handler was registered.
- @param[in, out] CommBuffer A pointer to a collection of data in memory that will
- be conveyed from a non-MM environment into an MM environment.
- @param[in, out] CommBufferSize The size of the CommBuffer.
-
- @retval EFI_SUCCESS The interrupt was handled and quiesced. No other handlers
- should still be called.
- @retval EFI_WARN_INTERRUPT_SOURCE_QUIESCED The interrupt has been quiesced but other handlers should
- still be called.
- @retval EFI_WARN_INTERRUPT_SOURCE_PENDING The interrupt is still pending and other handlers should still
- be called.
- @retval EFI_INTERRUPT_PENDING The interrupt could not be quiesced.
-
-**/
-EFI_STATUS
-EFIAPI
-FpdtSmiHandler (
- IN EFI_HANDLE DispatchHandle,
- IN CONST VOID *RegisterContext,
- IN OUT VOID *CommBuffer,
- IN OUT UINTN *CommBufferSize
- )
-{
- EFI_STATUS Status;
- SMM_BOOT_RECORD_COMMUNICATE *SmmCommData;
- UINTN BootRecordOffset;
- UINTN BootRecordSize;
- VOID *BootRecordData;
- UINTN TempCommBufferSize;
-
- //
- // If input is invalid, stop processing this SMI
- //
- if (CommBuffer == NULL || CommBufferSize == NULL) {
- return EFI_SUCCESS;
- }
-
- TempCommBufferSize = *CommBufferSize;
-
- if(TempCommBufferSize < sizeof (SMM_BOOT_RECORD_COMMUNICATE)) {
- return EFI_SUCCESS;
- }
-
- if (!IsBufferOutsideMmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
- DEBUG ((DEBUG_ERROR, "FpdtSmiHandler: MM communication data buffer in MMRAM or overflow!\n"));
- return EFI_SUCCESS;
- }
-
- SmmCommData = (SMM_BOOT_RECORD_COMMUNICATE*)CommBuffer;
-
- Status = EFI_SUCCESS;
-
- switch (SmmCommData->Function) {
- case SMM_FPDT_FUNCTION_GET_BOOT_RECORD_SIZE :
- if (mMmBootPerformanceTable != NULL) {
- mBootRecordSize = mMmBootPerformanceTable->Header.Length - sizeof (SMM_BOOT_PERFORMANCE_TABLE);
- }
- SmmCommData->BootRecordSize = mBootRecordSize;
- break;
-
- case SMM_FPDT_FUNCTION_GET_BOOT_RECORD_DATA :
- Status = EFI_UNSUPPORTED;
- break;
-
- case SMM_FPDT_FUNCTION_GET_BOOT_RECORD_DATA_BY_OFFSET :
- BootRecordOffset = SmmCommData->BootRecordOffset;
- BootRecordData = SmmCommData->BootRecordData;
- BootRecordSize = SmmCommData->BootRecordSize;
- if (BootRecordData == NULL || BootRecordOffset >= mBootRecordSize) {
- Status = EFI_INVALID_PARAMETER;
- break;
- }
-
- //
- // Sanity check
- //
- if (BootRecordSize > mBootRecordSize - BootRecordOffset) {
- BootRecordSize = mBootRecordSize - BootRecordOffset;
- }
- SmmCommData->BootRecordSize = BootRecordSize;
- if (!IsBufferOutsideMmValid ((UINTN)BootRecordData, BootRecordSize)) {
- DEBUG ((DEBUG_ERROR, "FpdtSmiHandler: MM Data buffer in MMRAM or overflow!\n"));
- Status = EFI_ACCESS_DENIED;
- break;
- }
-
- CopyMem (
- (UINT8*)BootRecordData,
- mBootRecordBuffer + BootRecordOffset,
- BootRecordSize
- );
- break;
-
- default:
- Status = EFI_UNSUPPORTED;
- }
-
- SmmCommData->ReturnStatus = Status;
-
- return EFI_SUCCESS;
-}
-
-/**
The module Entry Point of the Firmware Performance Data Table MM driver.
@retval EFI_SUCCESS The entry point is executed successfully.
@@ -278,12 +143,6 @@ FirmwarePerformanceCommonEntryPoint ( )
{
EFI_STATUS Status;
- EFI_HANDLE Handle;
-
- //
- // Initialize spin lock
- //
- InitializeSpinLock (&mMmFpdtLock);
//
// Get MM Report Status Code Handler Protocol.
@@ -301,12 +160,5 @@ FirmwarePerformanceCommonEntryPoint ( Status = mRscHandlerProtocol->Register (FpdtStatusCodeListenerMm);
ASSERT_EFI_ERROR (Status);
- //
- // Register SMI handler.
- //
- Handle = NULL;
- Status = gMmst->MmiHandlerRegister (FpdtSmiHandler, &gEfiFirmwarePerformanceGuid, &Handle);
- ASSERT_EFI_ERROR (Status);
-
return Status;
}
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