diff options
Diffstat (limited to 'UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c')
| -rw-r--r-- | UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c index 01b5a2f1f4..c614d5b0b6 100644 --- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c +++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c @@ -10,7 +10,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include <Library/VmgExitLib.h>
#include "CpuExceptionCommon.h"
-CONST UINTN mDoFarReturnFlag = 0;
+CONST UINTN mDoFarReturnFlag = 0;
/**
Common exception handler.
@@ -21,8 +21,8 @@ CONST UINTN mDoFarReturnFlag = 0; VOID
EFIAPI
CommonExceptionHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN EFI_SYSTEM_CONTEXT SystemContext
+ IN EFI_EXCEPTION_TYPE ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
)
{
if (ExceptionType == VC_EXCEPTION) {
@@ -79,26 +79,27 @@ CommonExceptionHandler ( EFI_STATUS
EFIAPI
InitializeCpuExceptionHandlers (
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
+ IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
)
{
- EFI_STATUS Status;
- RESERVED_VECTORS_DATA ReservedVectorData[CPU_EXCEPTION_NUM];
- IA32_DESCRIPTOR IdtDescriptor;
- UINTN IdtEntryCount;
- UINT16 CodeSegment;
- EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;
- IA32_IDT_GATE_DESCRIPTOR *IdtTable;
- UINTN Index;
- UINTN InterruptHandler;
+ EFI_STATUS Status;
+ RESERVED_VECTORS_DATA ReservedVectorData[CPU_EXCEPTION_NUM];
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINTN IdtEntryCount;
+ UINT16 CodeSegment;
+ EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;
+ IA32_IDT_GATE_DESCRIPTOR *IdtTable;
+ UINTN Index;
+ UINTN InterruptHandler;
if (VectorInfo != NULL) {
- SetMem ((VOID *) ReservedVectorData, sizeof (RESERVED_VECTORS_DATA) * CPU_EXCEPTION_NUM, 0xff);
+ SetMem ((VOID *)ReservedVectorData, sizeof (RESERVED_VECTORS_DATA) * CPU_EXCEPTION_NUM, 0xff);
Status = ReadAndVerifyVectorInfo (VectorInfo, ReservedVectorData, CPU_EXCEPTION_NUM);
if (EFI_ERROR (Status)) {
return EFI_INVALID_PARAMETER;
}
}
+
//
// Read IDT descriptor and calculate IDT size
//
@@ -110,6 +111,7 @@ InitializeCpuExceptionHandlers ( //
IdtEntryCount = CPU_EXCEPTION_NUM;
}
+
//
// Use current CS as the segment selector of interrupt gate in IDT
//
@@ -117,7 +119,7 @@ InitializeCpuExceptionHandlers ( AsmGetTemplateAddressMap (&TemplateMap);
IdtTable = (IA32_IDT_GATE_DESCRIPTOR *)IdtDescriptor.Base;
- for (Index = 0; Index < IdtEntryCount; Index ++) {
+ for (Index = 0; Index < IdtEntryCount; Index++) {
IdtTable[Index].Bits.Selector = CodeSegment;
//
// Check reserved vectors attributes if has, only EFI_VECTOR_HANDOFF_DO_NOT_HOOK
@@ -128,12 +130,14 @@ InitializeCpuExceptionHandlers ( continue;
}
}
+
//
// Update IDT entry
//
InterruptHandler = TemplateMap.ExceptionStart + Index * TemplateMap.ExceptionStubHeaderSize;
ArchUpdateIdtEntry (&IdtTable[Index], InterruptHandler);
}
+
return EFI_SUCCESS;
}
@@ -156,7 +160,7 @@ InitializeCpuExceptionHandlers ( EFI_STATUS
EFIAPI
InitializeCpuInterruptHandlers (
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
+ IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
)
{
return EFI_UNSUPPORTED;
@@ -188,8 +192,8 @@ InitializeCpuInterruptHandlers ( EFI_STATUS
EFIAPI
RegisterCpuInterruptHandler (
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
+ IN EFI_EXCEPTION_TYPE InterruptType,
+ IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
)
{
return EFI_UNSUPPORTED;
@@ -220,8 +224,8 @@ RegisterCpuInterruptHandler ( EFI_STATUS
EFIAPI
InitializeCpuExceptionHandlersEx (
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,
- IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL
+ IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,
+ IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL
)
{
return InitializeCpuExceptionHandlers (VectorInfo);
|