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-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c132
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.h96
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c84
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuExceptionHandlerLib.inf57
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ArchExceptionHandler.c164
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.S467
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.asm471
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c63
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib.inf56
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c192
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.S406
-rw-r--r--UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.asm407
12 files changed, 2595 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c
new file mode 100644
index 0000000000..4a4925afe5
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c
@@ -0,0 +1,132 @@
+/** @file
+ CPU Exception Hanlder Library common functions.
+
+ Copyright (c) 2012, Intel Corporation. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "CpuExceptionCommon.h"
+
+//
+// Error code flag indicating whether or not an error code will be
+// pushed on the stack if an exception occurs.
+//
+// 1 means an error code will be pushed, otherwise 0
+//
+UINT32 mErrorCodeFlag = 0x00027d00;
+
+//
+// Define the maximum message length
+//
+#define MAX_DEBUG_MESSAGE_LENGTH 0x100
+
+/**
+ Prints a message to the serial port.
+
+ @param Format Format string for the message to print.
+ @param ... Variable argument list whose contents are accessed
+ based on the format string specified by Format.
+
+**/
+VOID
+EFIAPI
+InternalPrintMessage (
+ IN CONST CHAR8 *Format,
+ ...
+ )
+{
+ CHAR8 Buffer[MAX_DEBUG_MESSAGE_LENGTH];
+ VA_LIST Marker;
+
+ //
+ // Convert the message to an ASCII String
+ //
+ VA_START (Marker, Format);
+ AsciiVSPrint (Buffer, sizeof (Buffer), Format, Marker);
+ VA_END (Marker);
+
+ //
+ // Send the print string to a Serial Port
+ //
+ SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer));
+}
+
+/**
+ Find and display image base address and return image base and its entry point.
+
+ @return EFI_SUCCESS Image base address.
+ @return 0 Image header cannot be found.
+**/
+UINTN
+FindModuleImageBase (
+ IN UINTN CurrentEip,
+ OUT UINTN *EntryPoint
+ )
+{
+ UINTN Pe32Data;
+ EFI_IMAGE_DOS_HEADER *DosHdr;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+ VOID *PdbPointer;
+
+ //
+ // Find Image Base
+ //
+ Pe32Data = CurrentEip & ~(mImageAlignSize - 1);
+ while (Pe32Data != 0) {
+ DosHdr = (EFI_IMAGE_DOS_HEADER *) Pe32Data;
+ if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
+ //
+ // DOS image header is present, so read the PE header after the DOS image header.
+ //
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)(Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
+ if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ //
+ // It's PE image.
+ //
+ InternalPrintMessage ("!!!! Find PE image ");
+ *EntryPoint = (UINTN)Pe32Data + (UINTN)(Hdr.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff);
+ break;
+ }
+ } else {
+ //
+ // DOS image header is not present, TE header is at the image base.
+ //
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
+ if ((Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) &&
+ ((Hdr.Te->Machine == IMAGE_FILE_MACHINE_I386) || Hdr.Te->Machine == IMAGE_FILE_MACHINE_X64)) {
+ //
+ // It's TE image, it TE header and Machine type match
+ //
+ InternalPrintMessage ("!!!! Find TE image ");
+ *EntryPoint = (UINTN)Pe32Data + (UINTN)(Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;
+ break;
+ }
+ }
+
+ //
+ // Not found the image base, check the previous aligned address
+ //
+ Pe32Data -= mImageAlignSize;
+ }
+
+ if (Pe32Data != 0) {
+ PdbPointer = PeCoffLoaderGetPdbPointer ((VOID *) Pe32Data);
+ if (PdbPointer != NULL) {
+ InternalPrintMessage ("%a", PdbPointer);
+ } else {
+ InternalPrintMessage ("(No PDB) " );
+ }
+ } else {
+ InternalPrintMessage ("!!!! Can't find image information. !!!!\n");
+ }
+
+ return Pe32Data;
+}
+
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.h b/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.h
new file mode 100644
index 0000000000..fa245e2ac8
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.h
@@ -0,0 +1,96 @@
+/** @file
+ Common header file for CPU Exception Handler Library.
+
+ Copyright (c) 2012, Intel Corporation. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _CPU_EXCEPTION_COMMON_H_
+#define _CPU_EXCEPTION_COMMON_H_
+
+#include <Library/BaseLib.h>
+#include <Library/SerialPortLib.h>
+#include <Library/PrintLib.h>
+#include <Library/LocalApicLib.h>
+#include <Library/PeCoffGetEntryPointLib.h>
+
+#define CPU_EXCEPTION_NUM 32
+//
+// Record exception handler information
+//
+typedef struct {
+ UINTN ExceptionStart;
+ UINTN ExceptionStubHeaderSize;
+} EXCEPTION_HANDLER_TEMPLATE_MAP;
+
+extern UINT32 mErrorCodeFlag;
+extern CONST UINTN mImageAlignSize;
+
+/**
+ Return address map of exception handler template so that C code can generate
+ exception tables.
+
+ @param AddressMap Pointer to a buffer where the address map is returned.
+**/
+VOID
+EFIAPI
+GetTemplateAddressMap (
+ OUT EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap
+ );
+
+/**
+ Internal function to setup CPU exception handlers.
+
+**/
+VOID
+InternalSetupCpuExceptionHandlers (
+ VOID
+ );
+
+/**
+ Prints a message to the serial port.
+
+ @param Format Format string for the message to print.
+ @param ... Variable argument list whose contents are accessed
+ based on the format string specified by Format.
+
+**/
+VOID
+EFIAPI
+InternalPrintMessage (
+ IN CONST CHAR8 *Format,
+ ...
+ );
+
+/**
+ Find and display image base address and return image base and its entry point.
+
+ @return EFI_SUCCESS Image base address.
+ @return 0 Image header cannot be found.
+**/
+UINTN
+FindModuleImageBase (
+ IN UINTN CurrentEip,
+ OUT UINTN *EntryPoint
+ );
+
+/**
+ Display CPU information.
+
+ @param InterruptType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+DumpCpuContent (
+ IN UINTN InterruptType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ );
+
+#endif
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c
new file mode 100644
index 0000000000..3110687284
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c
@@ -0,0 +1,84 @@
+/** @file
+ CPU Exception Library provides DXE/SMM CPU exception handler.
+
+Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+
+#include "CpuExceptionCommon.h"
+#include <Library/SynchronizationLib.h>
+
+//
+// Spinlock for CPU information display
+//
+SPIN_LOCK mDisplayMessageSpinLock;
+
+//
+// Image align size for DXE/SMM
+//
+CONST UINTN mImageAlignSize = SIZE_4KB;
+
+/**
+ Common exception handler.
+
+ @param ExceptionType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+EFIAPI
+CommonExceptionHandler (
+ IN EFI_EXCEPTION_TYPE ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ //
+ // Get Spinlock to display CPU information
+ //
+ while (!AcquireSpinLockOrFail (&mDisplayMessageSpinLock)) {
+ CpuPause ();
+ }
+
+ //
+ // Display ExceptionType, CPU information and Image information
+ //
+ DumpCpuContent (ExceptionType, SystemContext);
+
+ //
+ // Release Spinlock
+ //
+ ReleaseSpinLock (&mDisplayMessageSpinLock);
+
+ //
+ // Enter a dead loop.
+ //
+ CpuDeadLoop ();
+}
+
+/**
+ Setup CPU exception handlers.
+
+ This API will setups the CPU exception handler to display CPU contents and run into
+ CpuDeadLoop().
+ @Note: Before invoking this API, caller must allocate memory for IDT table and load
+ IDTR by AsmWriteIdtr().
+
+**/
+VOID
+EFIAPI
+SetupCpuExceptionHandlers (
+ IN VOID
+ )
+{
+ InitializeSpinLock (&mDisplayMessageSpinLock);
+ InternalSetupCpuExceptionHandlers ();
+}
+
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuExceptionHandlerLib.inf b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuExceptionHandlerLib.inf
new file mode 100644
index 0000000000..9f0f2d9beb
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuExceptionHandlerLib.inf
@@ -0,0 +1,57 @@
+## @file
+# Component description file for DXE/SMM CPU Exception Handler Library instance.
+#
+# This library instance supports DXE SMM module only.
+#
+# Copyright (c) 2012, Intel Corporation. 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
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DxeSmmCpuExceptionHandlerLib
+ FILE_GUID = EC629480-BD36-4e8e-8AB2-D28BF0D45864
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CpuExceptionHandlerLib|DXE_CORE DXE_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources.Ia32]
+ Ia32/ExceptionHandlerAsm.asm |MSFT
+ Ia32/ExceptionHandlerAsm.S |GCC
+ Ia32/ArchExceptionHandler.c
+
+[Sources.X64]
+ X64/ExceptionHandlerAsm.asm |MSFT
+ X64/ExceptionHandlerAsm.S |GCC
+ X64/ArchExceptionHandler.c
+
+[Sources.common]
+ CpuExceptionCommon.h
+ CpuExceptionCommon.c
+ DxeSmmCpuException.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UefiCpuPkg/UefiCpuPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ SerialPortLib
+ PrintLib
+ SynchronizationLib
+ LocalApicLib
+ PeCoffGetEntryPointLib
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ArchExceptionHandler.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ArchExceptionHandler.c
new file mode 100644
index 0000000000..a69f0d3d2b
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ArchExceptionHandler.c
@@ -0,0 +1,164 @@
+/** @file
+ IA32 CPU Exception Hanlder functons.
+
+ Copyright (c) 2012, Intel Corporation. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "CpuExceptionCommon.h"
+
+/**
+ Internal function to setup CPU exception handlers.
+
+**/
+VOID
+InternalSetupCpuExceptionHandlers (
+ VOID
+ )
+{
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINTN IdtSize;
+ EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;
+ UINT16 CodeSegment;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ UINTN Index;
+ UINTN InterruptHandler;;
+
+ //
+ // Read IDT descriptor and calculate IDT size
+ //
+ AsmReadIdtr (&IdtDescriptor);
+ IdtSize = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);
+ if (IdtSize > CPU_EXCEPTION_NUM) {
+ //
+ // CPU exeption library only setup CPU_EXCEPTION_NUM exception handler at most
+ //
+ IdtSize = CPU_EXCEPTION_NUM;
+ }
+
+ //
+ // Use current CS as the segment selector of interrupt gate in IDT
+ //
+ CodeSegment = AsmReadCs ();
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+
+ GetTemplateAddressMap (&TemplateMap);
+
+ for (Index = 0; Index < IdtSize; Index ++) {
+ InterruptHandler = TemplateMap.ExceptionStart + Index * TemplateMap.ExceptionStubHeaderSize;
+ IdtEntry[Index].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
+ IdtEntry[Index].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
+ IdtEntry[Index].Bits.Selector = CodeSegment;
+ IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+ }
+}
+
+/**
+ Dump CPU content information.
+
+ @param ExceptionType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+DumpCpuContent (
+ IN UINTN ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ UINTN ImageBase;
+ UINTN EntryPoint;
+
+ InternalPrintMessage (
+ "!!!! IA32 Exception Type - %08x CPU Apic ID - %08x !!!!\n",
+ ExceptionType,
+ GetApicId ()
+ );
+ InternalPrintMessage (
+ "EIP - %08x, CS - %08x, EFLAGS - %08x\n",
+ SystemContext.SystemContextIa32->Eip,
+ SystemContext.SystemContextIa32->Cs,
+ SystemContext.SystemContextIa32->Eflags
+ );
+ if ((mErrorCodeFlag & (1 << ExceptionType)) != 0) {
+ InternalPrintMessage (
+ "ExceptionData - %08x\n",
+ SystemContext.SystemContextIa32->ExceptionData
+ );
+ }
+ InternalPrintMessage (
+ "EAX - %08x, ECX - %08x, EDX - %08x, EBX - %08x\n",
+ SystemContext.SystemContextIa32->Eax,
+ SystemContext.SystemContextIa32->Ecx,
+ SystemContext.SystemContextIa32->Edx,
+ SystemContext.SystemContextIa32->Ebx
+ );
+ InternalPrintMessage (
+ "ESP - %08x, EBP - %08x, ESI - %08x, EDI - %08x\n",
+ SystemContext.SystemContextIa32->Esp,
+ SystemContext.SystemContextIa32->Ebp,
+ SystemContext.SystemContextIa32->Esi,
+ SystemContext.SystemContextIa32->Edi
+ );
+ InternalPrintMessage (
+ "DS - %08x, ES - %08x, FS - %08x, GS - %08x, SS - %08x\n",
+ SystemContext.SystemContextIa32->Ds,
+ SystemContext.SystemContextIa32->Es,
+ SystemContext.SystemContextIa32->Fs,
+ SystemContext.SystemContextIa32->Gs,
+ SystemContext.SystemContextIa32->Ss
+ );
+ InternalPrintMessage (
+ "CR0 - %08x, CR2 - %08x, CR3 - %08x, CR4 - %08x\n",
+ SystemContext.SystemContextIa32->Cr0,
+ SystemContext.SystemContextIa32->Cr2,
+ SystemContext.SystemContextIa32->Cr3,
+ SystemContext.SystemContextIa32->Cr4
+ );
+ InternalPrintMessage (
+ "DR0 - %08x, DR1 - %08x, DR2 - %08x, DR3 - %08x\n",
+ SystemContext.SystemContextIa32->Dr0,
+ SystemContext.SystemContextIa32->Dr1,
+ SystemContext.SystemContextIa32->Dr2,
+ SystemContext.SystemContextIa32->Dr3
+ );
+ InternalPrintMessage (
+ "DR6 - %08x, DR7 - %08x\n",
+ SystemContext.SystemContextIa32->Dr6,
+ SystemContext.SystemContextIa32->Dr7
+ );
+ InternalPrintMessage (
+ "GDTR - %08x %08x, IDTR - %08x %08x\n",
+ SystemContext.SystemContextIa32->Gdtr[0],
+ SystemContext.SystemContextIa32->Gdtr[1],
+ SystemContext.SystemContextIa32->Idtr[0],
+ SystemContext.SystemContextIa32->Idtr[1]
+ );
+ InternalPrintMessage (
+ "LDTR - %08x, TR - %08x\n",
+ SystemContext.SystemContextIa32->Ldtr,
+ SystemContext.SystemContextIa32->Tr
+ );
+ InternalPrintMessage (
+ "FXSAVE_STATE - %08x\n",
+ &SystemContext.SystemContextIa32->FxSaveState
+ );
+
+ //
+ // Find module image base and module entry point by RIP
+ //
+ ImageBase = FindModuleImageBase (SystemContext.SystemContextIa32->Eip, &EntryPoint);
+ if (ImageBase != 0) {
+ InternalPrintMessage (
+ " (ImageBase=%08x, EntryPoint=%08x) !!!!\n",
+ ImageBase,
+ EntryPoint
+ );
+ }
+}
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.S b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.S
new file mode 100644
index 0000000000..8b3f6319b6
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.S
@@ -0,0 +1,467 @@
+#------------------------------------------------------------------------------
+#*
+#* Copyright (c) 2012, Intel Corporation. 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
+#* http://opensource.org/licenses/bsd-license.php
+#*
+#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#*
+#* ExceptionHandlerAsm.S
+#*
+#* Abstract:
+#*
+#* IA32 CPU Exception Handler
+#
+#------------------------------------------------------------------------------
+
+
+
+
+
+#.MMX
+#.XMM
+
+ASM_GLOBAL ASM_PFX(CommonExceptionHandler)
+ASM_GLOBAL ASM_PFX(CommonInterruptEntry)
+
+#EXTRN ASM_PFX(mErrorCodeFlag):DWORD # Error code flags for exceptions
+
+.text
+
+#
+# exception handler stub table
+#
+Exception0Handle:
+ pushl $0
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception1Handle:
+ pushl $1
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception2Handle:
+ pushl $2
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception3Handle:
+ pushl $3
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception4Handle:
+ pushl $4
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception5Handle:
+ pushl $5
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception6Handle:
+ pushl $6
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception7Handle:
+ pushl $7
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception8Handle:
+ pushl $8
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception9Handle:
+ pushl $9
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception10Handle:
+ pushl $10
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception11Handle:
+ pushl $11
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception12Handle:
+ pushl $12
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception13Handle:
+ pushl $13
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception14Handle:
+ pushl $14
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception15Handle:
+ pushl $15
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception16Handle:
+ pushl $16
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception17Handle:
+ pushl $17
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception18Handle:
+ pushl $18
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception19Handle:
+ pushl $19
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception20Handle:
+ pushl $20
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception21Handle:
+ pushl $21
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception22Handle:
+ pushl $22
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception23Handle:
+ pushl $23
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception24Handle:
+ pushl $24
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception25Handle:
+ pushl $25
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception26Handle:
+ pushl $26
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception27Handle:
+ pushl $27
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception28Handle:
+ pushl $28
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception29Handle:
+ pushl $29
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception30Handle:
+ pushl $30
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception31Handle:
+ pushl $31
+ jmp ASM_PFX(CommonInterruptEntry)
+
+#---------------------------------------;
+# CommonInterruptEntry ;
+#---------------------------------------;
+# The follow algorithm is used for the common interrupt routine.
+
+ASM_GLOBAL ASM_PFX(CommonInterruptEntry)
+ASM_PFX(CommonInterruptEntry):
+ cli
+ #
+ # All interrupt handlers are invoked through interrupt gates, so
+ # IF flag automatically cleared at the entry point
+ #
+
+ #
+ # Calculate vector number
+ #
+ # Get the return address of call, actually, it is the
+ # address of vector number.
+ #
+ xchgl (%esp), %ecx
+ andl $0x0FFFF, %ecx
+ cmpl $32, %ecx # Intel reserved vector for exceptions?
+ jae NoErrorCode
+ bt %ecx, ASM_PFX(mErrorCodeFlag)
+ jc HasErrorCode
+
+NoErrorCode:
+
+ #
+ # Stack:
+ # +---------------------+
+ # + EFlags +
+ # +---------------------+
+ # + CS +
+ # +---------------------+
+ # + EIP +
+ # +---------------------+
+ # + ECX +
+ # +---------------------+ <-- ESP
+ #
+ # Registers:
+ # ECX - Vector Number
+ #
+
+ #
+ # Put Vector Number on stack
+ #
+ pushl %ecx
+
+ #
+ # Put 0 (dummy) error code on stack, and restore ECX
+ #
+ xorl %ecx, %ecx # ECX = 0
+ xchgl 4(%esp), %ecx
+
+ jmp ErrorCodeAndVectorOnStack
+
+HasErrorCode:
+
+ #
+ # Stack:
+ # +---------------------+
+ # + EFlags +
+ # +---------------------+
+ # + CS +
+ # +---------------------+
+ # + EIP +
+ # +---------------------+
+ # + Error Code +
+ # +---------------------+
+ # + ECX +
+ # +---------------------+ <-- ESP
+ #
+ # Registers:
+ # ECX - Vector Number
+ #
+
+ #
+ # Put Vector Number on stack and restore ECX
+ #
+ xchgl (%esp), %ecx
+
+ #
+ # Fall through to join main routine code
+ # at ErrorCodeAndVectorOnStack
+ #
+CommonInterruptEntry_al_0000:
+ jmp CommonInterruptEntry_al_0000
+
+ErrorCodeAndVectorOnStack:
+ pushl %ebp
+ movl %esp, %ebp
+
+ #
+ # Stack:
+ # +---------------------+
+ # + EFlags +
+ # +---------------------+
+ # + CS +
+ # +---------------------+
+ # + EIP +
+ # +---------------------+
+ # + Error Code +
+ # +---------------------+
+ # + Vector Number +
+ # +---------------------+
+ # + EBP +
+ # +---------------------+ <-- EBP
+ #
+
+ #
+ # Align stack to make sure that EFI_FX_SAVE_STATE_IA32 of EFI_SYSTEM_CONTEXT_IA32
+ # is 16-byte aligned
+ #
+ andl $0x0fffffff0, %esp
+ subl $12, %esp
+
+#; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
+ pushl %eax
+ pushl %ecx
+ pushl %edx
+ pushl %ebx
+ leal 24(%ebp), %ecx
+ pushl %ecx # ESP
+ pushl (%ebp) # EBP
+ pushl %esi
+ pushl %edi
+
+#; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
+ movl %ss, %eax
+ pushl %eax
+ movzwl 16(%ebp), %eax
+ pushl %eax
+ movl %ds, %eax
+ pushl %eax
+ movl %es, %eax
+ pushl %eax
+ movl %fs, %eax
+ pushl %eax
+ movl %gs, %eax
+ pushl %eax
+
+#; UINT32 Eip;
+ movl 12(%ebp), %eax
+ pushl %eax
+
+#; UINT32 Gdtr[2], Idtr[2];
+ subl $8, %esp
+ sidt (%esp)
+ movl 2(%esp), %eax
+ xchgl (%esp), %eax
+ andl $0x0FFFF, %eax
+ movl %eax, 4(%esp)
+
+ subl $8, %esp
+ sgdt (%esp)
+ movl 2(%esp), %eax
+ xchgl (%esp), %eax
+ andl $0x0FFFF, %eax
+ movl %eax, 4(%esp)
+
+#; UINT32 Ldtr, Tr;
+ xorl %eax, %eax
+ str %ax
+ pushl %eax
+ sldt %ax
+ pushl %eax
+
+#; UINT32 EFlags;
+ movl 20(%ebp), %eax
+ pushl %eax
+
+#; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
+ movl %cr4, %eax
+ orl $0x208, %eax
+ movl %eax, %cr4
+ pushl %eax
+ movl %cr3, %eax
+ pushl %eax
+ movl %cr2, %eax
+ pushl %eax
+ xorl %eax, %eax
+ pushl %eax
+ movl %cr0, %eax
+ pushl %eax
+
+#; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+ movl %dr7, %eax
+ pushl %eax
+ movl %dr6, %eax
+ pushl %eax
+ movl %dr3, %eax
+ pushl %eax
+ movl %dr2, %eax
+ pushl %eax
+ movl %dr1, %eax
+ pushl %eax
+ movl %dr0, %eax
+ pushl %eax
+
+#; FX_SAVE_STATE_IA32 FxSaveState;
+ subl $512, %esp
+ movl %esp, %edi
+ .byte 0x0f, 0x0ae, 0x07 #fxsave [edi]
+
+#; UEFI calling convention for IA32 requires that Direction flag in EFLAGs is clear
+ cld
+
+#; UINT32 ExceptionData;
+ pushl 8(%ebp)
+
+#; Prepare parameter and call
+ movl %esp, %edx
+ pushl %edx
+ movl 4(%ebp), %edx
+ pushl %edx
+
+ #
+ # Call External Exception Handler
+ #
+ call ASM_PFX(CommonExceptionHandler)
+ addl $8, %esp
+
+ cli
+#; UINT32 ExceptionData;
+ addl $4, %esp
+
+#; FX_SAVE_STATE_IA32 FxSaveState;
+ movl %esp, %esi
+ .byte 0x0f, 0x0ae, 0x0e # fxrstor [esi]
+ addl $512, %esp
+
+#; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+#; Skip restoration of DRx registers to support in-circuit emualators
+#; or debuggers set breakpoint in interrupt/exception context
+ addl $24, %esp
+
+#; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
+ popl %eax
+ movl %eax, %cr0
+ addl $4, %esp # not for Cr1
+ popl %eax
+ movl %eax, %cr2
+ popl %eax
+ movl %eax, %cr3
+ popl %eax
+ movl %eax, %cr4
+
+#; UINT32 EFlags;
+ popl 20(%ebp)
+
+#; UINT32 Ldtr, Tr;
+#; UINT32 Gdtr[2], Idtr[2];
+#; Best not let anyone mess with these particular registers...
+ addl $24, %esp
+
+#; UINT32 Eip;
+ popl 12(%ebp)
+
+#; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
+#; NOTE - modified segment registers could hang the debugger... We
+#; could attempt to insulate ourselves against this possibility,
+#; but that poses risks as well.
+#;
+ popl %gs
+ popl %fs
+ popl %es
+ popl %ds
+ popl 16(%ebp)
+ popl %ss
+
+#; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
+ popl %edi
+ popl %esi
+ addl $4, %esp # not for ebp
+ addl $4, %esp # not for esp
+ popl %ebx
+ popl %edx
+ popl %ecx
+ popl %eax
+
+ movl %ebp, %esp
+ popl %ebp
+ addl $8, %esp
+ iretl
+
+
+#---------------------------------------;
+# _GetTemplateAddressMap ;
+#----------------------------------------------------------------------------;
+#
+# Protocol prototype
+# GetTemplateAddressMap (
+# EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap
+# );
+#
+# Routine Description:
+#
+# Return address map of interrupt handler template so that C code can generate
+# interrupt table.
+#
+# Arguments:
+#
+#
+# Returns:
+#
+# Nothing
+#
+#
+# Input: [ebp][0] = Original ebp
+# [ebp][4] = Return address
+#
+# Output: Nothing
+#
+# Destroys: Nothing
+#-----------------------------------------------------------------------------;
+#-------------------------------------------------------------------------------------
+# AsmGetAddressMap (&AddressMap);
+#-------------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(GetTemplateAddressMap)
+ASM_PFX(GetTemplateAddressMap):
+
+ pushl %ebp
+ movl %esp,%ebp
+ pushal
+
+ movl 0x8(%ebp), %ebx
+ movl $Exception0Handle, (%ebx)
+ movl $(Exception1Handle - Exception0Handle), 0x4(%ebx)
+
+ popal
+ popl %ebp
+ ret
+
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.asm b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.asm
new file mode 100644
index 0000000000..dc71959bd1
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionHandlerAsm.asm
@@ -0,0 +1,471 @@
+;------------------------------------------------------------------------------ ;
+; Copyright (c) 2012, Intel Corporation. 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
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+; ExceptionHandlerAsm.Asm
+;
+; Abstract:
+;
+; IA32 CPU Exception Handler
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ .686
+ .model flat,C
+
+;
+; CommonExceptionHandler()
+;
+CommonExceptionHandler PROTO C
+
+.data
+
+CommonEntryAddr DD CommonInterruptEntry
+
+EXTRN mErrorCodeFlag:DWORD ; Error code flags for exceptions
+
+.code
+
+;
+; exception handler stub table
+;
+Exception0Handle:
+ push 0
+ jmp dword ptr [CommonEntryAddr]
+Exception1Handle:
+ push 1
+ jmp dword ptr [CommonEntryAddr]
+Exception2Handle:
+ push 2
+ jmp dword ptr [CommonEntryAddr]
+Exception3Handle:
+ push 3
+ jmp dword ptr [CommonEntryAddr]
+Exception4Handle:
+ push 4
+ jmp dword ptr [CommonEntryAddr]
+Exception5Handle:
+ push 5
+ jmp dword ptr [CommonEntryAddr]
+Exception6Handle:
+ push 6
+ jmp dword ptr [CommonEntryAddr]
+Exception7Handle:
+ push 7
+ jmp dword ptr [CommonEntryAddr]
+Exception8Handle:
+ push 8
+ jmp dword ptr [CommonEntryAddr]
+Exception9Handle:
+ push 9
+ jmp dword ptr [CommonEntryAddr]
+Exception10Handle:
+ push 10
+ jmp dword ptr [CommonEntryAddr]
+Exception11Handle:
+ push 11
+ jmp dword ptr [CommonEntryAddr]
+Exception12Handle:
+ push 12
+ jmp dword ptr [CommonEntryAddr]
+Exception13Handle:
+ push 13
+ jmp dword ptr [CommonEntryAddr]
+Exception14Handle:
+ push 14
+ jmp dword ptr [CommonEntryAddr]
+Exception15Handle:
+ push 15
+ jmp dword ptr [CommonEntryAddr]
+Exception16Handle:
+ push 16
+ jmp dword ptr [CommonEntryAddr]
+Exception17Handle:
+ push 17
+ jmp dword ptr [CommonEntryAddr]
+Exception18Handle:
+ push 18
+ jmp dword ptr [CommonEntryAddr]
+Exception19Handle:
+ push 19
+ jmp dword ptr [CommonEntryAddr]
+Exception20Handle:
+ push 20
+ jmp dword ptr [CommonEntryAddr]
+Exception21Handle:
+ push 21
+ jmp dword ptr [CommonEntryAddr]
+Exception22Handle:
+ push 22
+ jmp dword ptr [CommonEntryAddr]
+Exception23Handle:
+ push 23
+ jmp dword ptr [CommonEntryAddr]
+Exception24Handle:
+ push 24
+ jmp dword ptr [CommonEntryAddr]
+Exception25Handle:
+ push 25
+ jmp dword ptr [CommonEntryAddr]
+Exception26Handle:
+ push 26
+ jmp dword ptr [CommonEntryAddr]
+Exception27Handle:
+ push 27
+ jmp dword ptr [CommonEntryAddr]
+Exception28Handle:
+ push 28
+ jmp dword ptr [CommonEntryAddr]
+Exception29Handle:
+ push 29
+ jmp dword ptr [CommonEntryAddr]
+Exception30Handle:
+ push 30
+ jmp dword ptr [CommonEntryAddr]
+Exception31Handle:
+ push 31
+ jmp dword ptr [CommonEntryAddr]
+
+;----------------------------------------------------------------------------;
+; CommonInterruptEntry ;
+;----------------------------------------------------------------------------;
+; The follow algorithm is used for the common interrupt routine.
+; Entry from each interrupt with a push eax and eax=interrupt number
+
+CommonInterruptEntry PROC PUBLIC
+ cli
+ ;
+ ; All interrupt handlers are invoked through interrupt gates, so
+ ; IF flag automatically cleared at the entry point
+ ;
+
+ ;
+ ; Calculate vector number
+ ;
+ ; Get the return address of call, actually, it is the
+ ; address of vector number.
+ ;
+ xchg ecx, [esp]
+ and ecx, 0FFFFh
+ cmp ecx, 32 ; Intel reserved vector for exceptions?
+ jae NoErrorCode
+ bt mErrorCodeFlag, ecx
+ jc HasErrorCode
+
+NoErrorCode:
+
+ ;
+ ; Stack:
+ ; +---------------------+
+ ; + EFlags +
+ ; +---------------------+
+ ; + CS +
+ ; +---------------------+
+ ; + EIP +
+ ; +---------------------+
+ ; + ECX +
+ ; +---------------------+ <-- ESP
+ ;
+ ; Registers:
+ ; ECX - Vector Number
+ ;
+
+ ;
+ ; Put Vector Number on stack
+ ;
+ push ecx
+
+ ;
+ ; Put 0 (dummy) error code on stack, and restore ECX
+ ;
+ xor ecx, ecx ; ECX = 0
+ xchg ecx, [esp+4]
+
+ jmp ErrorCodeAndVectorOnStack
+
+HasErrorCode:
+
+ ;
+ ; Stack:
+ ; +---------------------+
+ ; + EFlags +
+ ; +---------------------+
+ ; + CS +
+ ; +---------------------+
+ ; + EIP +
+ ; +---------------------+
+ ; + Error Code +
+ ; +---------------------+
+ ; + ECX +
+ ; +---------------------+ <-- ESP
+ ;
+ ; Registers:
+ ; ECX - Vector Number
+ ;
+
+ ;
+ ; Put Vector Number on stack and restore ECX
+ ;
+ xchg ecx, [esp]
+
+ ;
+ ; Fall through to join main routine code
+ ; at ErrorCodeAndVectorOnStack
+ ;
+@@:
+ jmp @B
+
+ErrorCodeAndVectorOnStack:
+ push ebp
+ mov ebp, esp
+
+ ;
+ ; Stack:
+ ; +---------------------+
+ ; + EFlags +
+ ; +---------------------+
+ ; + CS +
+ ; +---------------------+
+ ; + EIP +
+ ; +---------------------+
+ ; + Error Code +
+ ; +---------------------+
+ ; + Vector Number +
+ ; +---------------------+
+ ; + EBP +
+ ; +---------------------+ <-- EBP
+ ;
+
+ ;
+ ; Align stack to make sure that EFI_FX_SAVE_STATE_IA32 of EFI_SYSTEM_CONTEXT_IA32
+ ; is 16-byte aligned
+ ;
+ and esp, 0fffffff0h
+ sub esp, 12
+
+;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
+ push eax
+ push ecx
+ push edx
+ push ebx
+ lea ecx, [ebp + 6 * 4]
+ push ecx ; ESP
+ push dword ptr [ebp] ; EBP
+ push esi
+ push edi
+
+;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
+ mov eax, ss
+ push eax
+ movzx eax, word ptr [ebp + 4 * 4]
+ push eax
+ mov eax, ds
+ push eax
+ mov eax, es
+ push eax
+ mov eax, fs
+ push eax
+ mov eax, gs
+ push eax
+
+;; UINT32 Eip;
+ mov eax, [ebp + 3 * 4]
+ push eax
+
+;; UINT32 Gdtr[2], Idtr[2];
+ sub esp, 8
+ sidt [esp]
+ mov eax, [esp + 2]
+ xchg eax, [esp]
+ and eax, 0FFFFh
+ mov [esp+4], eax
+
+ sub esp, 8
+ sgdt [esp]
+ mov eax, [esp + 2]
+ xchg eax, [esp]
+ and eax, 0FFFFh
+ mov [esp+4], eax
+
+;; UINT32 Ldtr, Tr;
+ xor eax, eax
+ str ax
+ push eax
+ sldt ax
+ push eax
+
+;; UINT32 EFlags;
+ mov eax, [ebp + 5 * 4]
+ push eax
+
+;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
+ mov eax, cr4
+ or eax, 208h
+ mov cr4, eax
+ push eax
+ mov eax, cr3
+ push eax
+ mov eax, cr2
+ push eax
+ xor eax, eax
+ push eax
+ mov eax, cr0
+ push eax
+
+;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+ mov eax, dr7
+ push eax
+ mov eax, dr6
+ push eax
+ mov eax, dr3
+ push eax
+ mov eax, dr2
+ push eax
+ mov eax, dr1
+ push eax
+ mov eax, dr0
+ push eax
+
+;; FX_SAVE_STATE_IA32 FxSaveState;
+ sub esp, 512
+ mov edi, esp
+ db 0fh, 0aeh, 07h ;fxsave [edi]
+
+;; UEFI calling convention for IA32 requires that Direction flag in EFLAGs is clear
+ cld
+
+;; UINT32 ExceptionData;
+ push dword ptr [ebp + 2 * 4]
+
+;; Prepare parameter and call
+ mov edx, esp
+ push edx
+ mov edx, dword ptr [ebp + 1 * 4]
+ push edx
+
+ ;
+ ; Call External Exception Handler
+ ;
+ mov eax, CommonExceptionHandler
+ call eax
+ add esp, 8
+
+ cli
+;; UINT32 ExceptionData;
+ add esp, 4
+
+;; FX_SAVE_STATE_IA32 FxSaveState;
+ mov esi, esp
+ db 0fh, 0aeh, 0eh ; fxrstor [esi]
+ add esp, 512
+
+;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+;; Skip restoration of DRx registers to support in-circuit emualators
+;; or debuggers set breakpoint in interrupt/exception context
+ add esp, 4 * 6
+
+;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
+ pop eax
+ mov cr0, eax
+ add esp, 4 ; not for Cr1
+ pop eax
+ mov cr2, eax
+ pop eax
+ mov cr3, eax
+ pop eax
+ mov cr4, eax
+
+;; UINT32 EFlags;
+ pop dword ptr [ebp + 5 * 4]
+
+;; UINT32 Ldtr, Tr;
+;; UINT32 Gdtr[2], Idtr[2];
+;; Best not let anyone mess with these particular registers...
+ add esp, 24
+
+;; UINT32 Eip;
+ pop dword ptr [ebp + 3 * 4]
+
+;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
+;; NOTE - modified segment registers could hang the debugger... We
+;; could attempt to insulate ourselves against this possibility,
+;; but that poses risks as well.
+;;
+ pop gs
+ pop fs
+ pop es
+ pop ds
+ pop dword ptr [ebp + 4 * 4]
+ pop ss
+
+;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
+ pop edi
+ pop esi
+ add esp, 4 ; not for ebp
+ add esp, 4 ; not for esp
+ pop ebx
+ pop edx
+ pop ecx
+ pop eax
+
+ mov esp, ebp
+ pop ebp
+ add esp, 8
+ iretd
+
+CommonInterruptEntry ENDP
+
+;---------------------------------------;
+; _GetTemplateAddressMap ;
+;----------------------------------------------------------------------------;
+;
+; Protocol prototype
+; GetTemplateAddressMap (
+; EXCEPTION_HANDLER_TEMPLATE_MAP *AddressMap
+; );
+;
+; Routine Description:
+;
+; Return address map of interrupt handler template so that C code can generate
+; interrupt table.
+;
+; Arguments:
+;
+;
+; Returns:
+;
+; Nothing
+;
+;
+; Input: [ebp][0] = Original ebp
+; [ebp][4] = Return address
+;
+; Output: Nothing
+;
+; Destroys: Nothing
+;-----------------------------------------------------------------------------;
+GetTemplateAddressMap proc near public
+ push ebp ; C prolog
+ mov ebp, esp
+ pushad
+
+ mov ebx, dword ptr [ebp+08h]
+ mov dword ptr [ebx], Exception0Handle
+ mov dword ptr [ebx+4h], Exception1Handle - Exception0Handle
+
+ popad
+ pop ebp
+ ret
+GetTemplateAddressMap ENDP
+
+END
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c
new file mode 100644
index 0000000000..de76e478ba
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c
@@ -0,0 +1,63 @@
+/** @file
+ CPU Exception Library provides SEC/PEIM CPU exception handler.
+
+Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include "CpuExceptionCommon.h"
+
+//
+// Image Aglinment size for SEC/PEI phase
+//
+CONST UINTN mImageAlignSize = 4;
+
+/**
+ Common exception handler.
+
+ @param ExceptionType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+EFIAPI
+CommonExceptionHandler (
+ IN EFI_EXCEPTION_TYPE ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ //
+ // Display ExceptionType, CPU information and Image information
+ //
+ DumpCpuContent (ExceptionType, SystemContext);
+
+ //
+ // Enter a dead loop.
+ //
+ CpuDeadLoop ();
+}
+
+/**
+ Setup CPU exception handlers.
+
+ This API will setups the CPU exception handler to display CPU contents and run into
+ CpuDeadLoop().
+ @Note: Before invoking this API, caller must allocate memory for IDT table and load
+ IDTR by AsmWriteIdtr().
+
+**/
+VOID
+EFIAPI
+SetupCpuExceptionHandlers (
+ IN VOID
+ )
+{
+ InternalSetupCpuExceptionHandlers ();
+}
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib.inf b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib.inf
new file mode 100644
index 0000000000..96ddaafd43
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib.inf
@@ -0,0 +1,56 @@
+## @file
+# Component description file for SEC/PEI CPU Exception Handler Library instance
+#
+# This library instance supports SEC/PEI module only.
+#
+# Copyright (c) 2012, Intel Corporation. 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
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = SecPeiCpuExceptionHandlerLib
+ FILE_GUID = CA4BBC99-DFC6-4234-B553-8B6586B7B113
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CpuExceptionHandlerLib|SEC PEIM_CORE PEIM
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources.Ia32]
+ Ia32/ExceptionHandlerAsm.asm |MSFT
+ Ia32/ExceptionHandlerAsm.S |GCC
+ Ia32/ArchExceptionHandler.c
+
+[Sources.X64]
+ X64/ExceptionHandlerAsm.asm |MSFT
+ X64/ExceptionHandlerAsm.S |GCC
+ X64/ArchExceptionHandler.c
+
+[Sources.common]
+ CpuExceptionCommon.h
+ CpuExceptionCommon.c
+ SecPeiCpuException.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UefiCpuPkg/UefiCpuPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ SerialPortLib
+ PrintLib
+ LocalApicLib
+ PeCoffGetEntryPointLib
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c
new file mode 100644
index 0000000000..664472a667
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c
@@ -0,0 +1,192 @@
+/** @file
+ x64 CPU Exception Hanlder.
+
+ Copyright (c) 2012, Intel Corporation. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "CpuExceptionCommon.h"
+
+/**
+ Internal function to setup CPU exception handlers.
+
+**/
+VOID
+InternalSetupCpuExceptionHandlers (
+ VOID
+ )
+{
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINTN IdtSize;
+ EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;
+ UINT16 CodeSegment;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ UINTN Index;
+ UINTN InterruptHandler;
+
+ //
+ // Read IDT descriptor and calculate IDT size
+ //
+ AsmReadIdtr (&IdtDescriptor);
+ IdtSize = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);
+ if (IdtSize > CPU_EXCEPTION_NUM) {
+ //
+ // CPU exeption library only setup CPU_EXCEPTION_NUM exception handler at most
+ //
+ IdtSize = CPU_EXCEPTION_NUM;
+ }
+
+ //
+ // Use current CS as the segment selector of interrupt gate in IDT
+ //
+ CodeSegment = AsmReadCs ();
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+
+ GetTemplateAddressMap (&TemplateMap);
+
+ for (Index = 0; Index < IdtSize; Index ++) {
+ InterruptHandler = TemplateMap.ExceptionStart + Index * TemplateMap.ExceptionStubHeaderSize;
+ IdtEntry[Index].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
+ IdtEntry[Index].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
+ IdtEntry[Index].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
+ IdtEntry[Index].Bits.Selector = CodeSegment;
+ IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+ }
+}
+
+/**
+ Common exception handler.
+
+ @param ExceptionType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+DumpCpuContent (
+ IN UINTN ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ UINTN ImageBase;
+ UINTN EntryPoint;
+
+ InternalPrintMessage (
+ "!!!! X64 Exception Type - %016lx CPU Apic ID - %08x !!!!\n",
+ ExceptionType,
+ GetApicId ()
+ );
+ InternalPrintMessage (
+ "RIP - %016lx, CS - %016lx, RFLAGS - %016lx\n",
+ SystemContext.SystemContextX64->Rip,
+ SystemContext.SystemContextX64->Cs,
+ SystemContext.SystemContextX64->Rflags
+ );
+ if (mErrorCodeFlag & (1 << ExceptionType)) {
+ InternalPrintMessage (
+ "ExceptionData - %016lx\n",
+ SystemContext.SystemContextX64->ExceptionData
+ );
+ }
+ InternalPrintMessage (
+ "RAX - %016lx, RCX - %016lx, RDX - %016lx\n",
+ SystemContext.SystemContextX64->Rax,
+ SystemContext.SystemContextX64->Rcx,
+ SystemContext.SystemContextX64->Rdx
+ );
+ InternalPrintMessage (
+ "RBX - %016lx, RSP - %016lx, RBP - %016lx\n",
+ SystemContext.SystemContextX64->Rbx,
+ SystemContext.SystemContextX64->Rsp,
+ SystemContext.SystemContextX64->Rbp
+ );
+ InternalPrintMessage (
+ "RSI - %016lx, RDI - %016lx\n",
+ SystemContext.SystemContextX64->Rsi,
+ SystemContext.SystemContextX64->Rdi
+ );
+ InternalPrintMessage (
+ "R8 - %016lx, R9 - %016lx, R10 - %016lx\n",
+ SystemContext.SystemContextX64->R8,
+ SystemContext.SystemContextX64->R9,
+ SystemContext.SystemContextX64->R10
+ );
+ InternalPrintMessage (
+ "R11 - %016lx, R12 - %016lx, R13 - %016lx\n",
+ SystemContext.SystemContextX64->R11,
+ SystemContext.SystemContextX64->R12,
+ SystemContext.SystemContextX64->R13
+ );
+ InternalPrintMessage (
+ "R14 - %016lx, R15 - %016lx\n",
+ SystemContext.SystemContextX64->R14,
+ SystemContext.SystemContextX64->R15
+ );
+ InternalPrintMessage (
+ "DS - %016lx, ES - %016lx, FS - %016lx\n",
+ SystemContext.SystemContextX64->Ds,
+ SystemContext.SystemContextX64->Es,
+ SystemContext.SystemContextX64->Fs
+ );
+ InternalPrintMessage (
+ "GS - %016lx, SS - %016lx\n",
+ SystemContext.SystemContextX64->Gs,
+ SystemContext.SystemContextX64->Ss
+ );
+ InternalPrintMessage (
+ "CR0 - %016lx, CR2 - %016lx, CR3 - %016lx\n",
+ SystemContext.SystemContextX64->Cr0,
+ SystemContext.SystemContextX64->Cr2,
+ SystemContext.SystemContextX64->Cr3
+ );
+ InternalPrintMessage (
+ "CR4 - %016lx, CR8 - %016lx\n",
+ SystemContext.SystemContextX64->Cr4,
+ SystemContext.SystemContextX64->Cr8
+ );
+ InternalPrintMessage (
+ "DR0 - %016lx, DR1 - %016lx, DR2 - %016lx\n",
+ SystemContext.SystemContextX64->Dr0,
+ SystemContext.SystemContextX64->Dr1,
+ SystemContext.SystemContextX64->Dr2
+ );
+ InternalPrintMessage (
+ "DR3 - %016lx, DR6 - %016lx, DR7 - %016lx\n",
+ SystemContext.SystemContextX64->Dr3,
+ SystemContext.SystemContextX64->Dr6,
+ SystemContext.SystemContextX64->Dr7
+ );
+ InternalPrintMessage (
+ "GDTR - %016lx %016lx, LDTR - %016lx\n",
+ SystemContext.SystemContextX64->Gdtr[0],
+ SystemContext.SystemContextX64->Gdtr[1],
+ SystemContext.SystemContextX64->Ldtr
+ );
+ InternalPrintMessage (
+ "IDTR - %016lx %016lx, TR - %016lx\n",
+ SystemContext.SystemContextX64->Idtr[0],
+ SystemContext.SystemContextX64->Idtr[1],
+ SystemContext.SystemContextX64->Tr
+ );
+ InternalPrintMessage (
+ "FXSAVE_STATE - %016lx\n",
+ &SystemContext.SystemContextX64->FxSaveState
+ );
+
+ //
+ // Find module image base and module entry point by RIP
+ //
+ ImageBase = FindModuleImageBase (SystemContext.SystemContextX64->Rip, &EntryPoint);
+ if (ImageBase != 0) {
+ InternalPrintMessage (
+ " (ImageBase=%016lx, EntryPoint=%016lx) !!!!\n",
+ ImageBase,
+ EntryPoint
+ );
+ }
+}
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.S b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.S
new file mode 100644
index 0000000000..cd101475a7
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.S
@@ -0,0 +1,406 @@
+#------------------------------------------------------------------------------ ;
+# Copyright (c) 2012, Intel Corporation. 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
+# http://opensource.org/licenses/bsd-license.php.
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+# ExceptionHandlerAsm.S
+#
+# Abstract:
+#
+# x64 CPU Exception Handler
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#EXTRN ASM_PFX(mErrorCodeFlag):DWORD # Error code flags for exceptions
+
+ASM_GLOBAL ASM_PFX(CommonExceptionHandler)
+ASM_GLOBAL ASM_PFX(CommonInterruptEntry)
+
+
+.text
+
+#
+# point to the external interrupt vector table
+#
+Exception0Handle:
+ pushq $0
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception1Handle:
+ pushq $1
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception2Handle:
+ pushq $2
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception3Handle:
+ pushq $3
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception4Handle:
+ pushq $4
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception5Handle:
+ pushq $5
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception6Handle:
+ pushq $6
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception7Handle:
+ pushq $7
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception8Handle:
+ pushq $8
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception9Handle:
+ pushq $9
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception10Handle:
+ pushq $10
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception11Handle:
+ pushq $11
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception12Handle:
+ pushq $12
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception13Handle:
+ pushq $13
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception14Handle:
+ pushq $14
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception15Handle:
+ pushq $15
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception16Handle:
+ pushq $16
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception17Handle:
+ pushq $17
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception18Handle:
+ pushq $18
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception19Handle:
+ pushq $19
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception20Handle:
+ pushq $20
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception21Handle:
+ pushq $21
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception22Handle:
+ pushq $22
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception23Handle:
+ pushq $23
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception24Handle:
+ pushq $24
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception25Handle:
+ pushq $25
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception26Handle:
+ pushq $26
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception27Handle:
+ pushq $27
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception28Handle:
+ pushq $28
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception29Handle:
+ pushq $29
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception30Handle:
+ pushq $30
+ jmp ASM_PFX(CommonInterruptEntry)
+Exception31Handle:
+ pushq $31
+ jmp ASM_PFX(CommonInterruptEntry)
+
+
+#---------------------------------------;
+# CommonInterruptEntry ;
+#---------------------------------------;
+# The follow algorithm is used for the common interrupt routine.
+
+ASM_GLOBAL ASM_PFX(CommonInterruptEntry)
+ASM_PFX(CommonInterruptEntry):
+ cli
+ #
+ # All interrupt handlers are invoked through interrupt gates, so
+ # IF flag automatically cleared at the entry point
+ #
+ #
+ # Calculate vector number
+ #
+ xchgq (%rsp), %rcx # get the return address of call, actually, it is the address of vector number.
+ cmp $32, %ecx # Intel reserved vector for exceptions?
+ jae NoErrorCode
+ pushq %rax
+ leaq ASM_PFX(mErrorCodeFlag)(%rip), %rax
+ bt %ecx, (%rax)
+ popq %rax
+ jc CommonInterruptEntry_al_0000
+
+NoErrorCode:
+
+ #
+ # Push a dummy error code on the stack
+ # to maintain coherent stack map
+ #
+ pushq (%rsp)
+ movq $0, 8(%rsp)
+CommonInterruptEntry_al_0000:
+ pushq %rbp
+ movq %rsp, %rbp
+
+ #
+ # Stack:
+ # +---------------------+ <-- 16-byte aligned ensured by processor
+ # + Old SS +
+ # +---------------------+
+ # + Old RSP +
+ # +---------------------+
+ # + RFlags +
+ # +---------------------+
+ # + CS +
+ # +---------------------+
+ # + RIP +
+ # +---------------------+
+ # + Error Code +
+ # +---------------------+
+ # + RCX / Vector Number +
+ # +---------------------+
+ # + RBP +
+ # +---------------------+ <-- RBP, 16-byte aligned
+ #
+
+
+ #
+ # Since here the stack pointer is 16-byte aligned, so
+ # EFI_FX_SAVE_STATE_X64 of EFI_SYSTEM_CONTEXT_x64
+ # is 16-byte aligned
+ #
+
+#; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
+#; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
+ pushq %r15
+ pushq %r14
+ pushq %r13
+ pushq %r12
+ pushq %r11
+ pushq %r10
+ pushq %r9
+ pushq %r8
+ pushq %rax
+ pushq 8(%rbp) # RCX
+ pushq %rdx
+ pushq %rbx
+ pushq 48(%rbp) # RSP
+ pushq (%rbp) # RBP
+ pushq %rsi
+ pushq %rdi
+
+#; UINT64 Gs, Fs, Es, Ds, Cs, Ss; insure high 16 bits of each is zero
+ movzwq 56(%rbp), %rax
+ pushq %rax # for ss
+ movzwq 32(%rbp), %rax
+ pushq %rax # for cs
+ movl %ds, %eax
+ pushq %rax
+ movl %es, %eax
+ pushq %rax
+ movl %fs, %eax
+ pushq %rax
+ movl %gs, %eax
+ pushq %rax
+
+ movq %rcx, 8(%rbp) # save vector number
+
+#; UINT64 Rip;
+ pushq 24(%rbp)
+
+#; UINT64 Gdtr[2], Idtr[2];
+ xorq %rax, %rax
+ pushq %rax
+ pushq %rax
+ sidt (%rsp)
+ xchgq 2(%rsp), %rax
+ xchgq (%rsp), %rax
+ xchgq 8(%rsp), %rax
+
+ xorq %rax, %rax
+ pushq %rax
+ pushq %rax
+ sgdt (%rsp)
+ xchgq 2(%rsp), %rax
+ xchgq (%rsp), %rax
+ xchgq 8(%rsp), %rax
+
+#; UINT64 Ldtr, Tr;
+ xorq %rax, %rax
+ str %ax
+ pushq %rax
+ sldt %ax
+ pushq %rax
+
+#; UINT64 RFlags;
+ pushq 40(%rbp)
+
+#; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
+ movq %cr8, %rax
+ pushq %rax
+ movq %cr4, %rax
+ orq $0x208, %rax
+ movq %rax, %cr4
+ pushq %rax
+ mov %cr3, %rax
+ pushq %rax
+ mov %cr2, %rax
+ pushq %rax
+ xorq %rax, %rax
+ pushq %rax
+ mov %cr0, %rax
+ pushq %rax
+
+#; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+ movq %dr7, %rax
+ pushq %rax
+ movq %dr6, %rax
+ pushq %rax
+ movq %dr3, %rax
+ pushq %rax
+ movq %dr2, %rax
+ pushq %rax
+ movq %dr1, %rax
+ pushq %rax
+ movq %dr0, %rax
+ pushq %rax
+
+#; FX_SAVE_STATE_X64 FxSaveState;
+ subq $512, %rsp
+ movq %rsp, %rdi
+ .byte 0x0f, 0x0ae, 0x07 #fxsave [rdi]
+
+#; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
+ cld
+
+#; UINT32 ExceptionData;
+ pushq 16(%rbp)
+
+#; Prepare parameter and call
+ mov 8(%rbp), %rcx
+ mov %rsp, %rdx
+ #
+ # Per X64 calling convention, allocate maximum parameter stack space
+ # and make sure RSP is 16-byte aligned
+ #
+ subq $40, %rsp
+ call ASM_PFX(CommonExceptionHandler)
+ addq $40, %rsp
+
+ cli
+#; UINT64 ExceptionData;
+ addq $8, %rsp
+
+#; FX_SAVE_STATE_X64 FxSaveState;
+
+ movq %rsp, %rsi
+ .byte 0x0f, 0x0ae, 0x0E # fxrstor [rsi]
+ addq $512, %rsp
+
+#; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+#; Skip restoration of DRx registers to support in-circuit emualators
+#; or debuggers set breakpoint in interrupt/exception context
+ addq $48, %rsp
+
+#; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
+ popq %rax
+ movq %rax, %cr0
+ addq $8, %rsp # not for Cr1
+ popq %rax
+ movq %rax, %cr2
+ popq %rax
+ movq %rax, %cr3
+ popq %rax
+ movq %rax, %cr4
+ popq %rax
+ movq %rax, %cr8
+
+#; UINT64 RFlags;
+ popq 40(%rbp)
+
+#; UINT64 Ldtr, Tr;
+#; UINT64 Gdtr[2], Idtr[2];
+#; Best not let anyone mess with these particular registers...
+ addq $48, %rsp
+
+#; UINT64 Rip;
+ popq 24(%rbp)
+
+#; UINT64 Gs, Fs, Es, Ds, Cs, Ss;
+ popq %rax
+ # mov %rax, %gs ; not for gs
+ popq %rax
+ # mov %rax, %fs ; not for fs
+ # (X64 will not use fs and gs, so we do not restore it)
+ popq %rax
+ movl %eax, %es
+ popq %rax
+ movl %eax, %ds
+ popq 32(%rbp) # for cs
+ popq 56(%rbp) # for ss
+
+#; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
+#; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
+ popq %rdi
+ popq %rsi
+ addq $8, %rsp # not for rbp
+ popq 48(%rbp) # for rsp
+ popq %rbx
+ popq %rdx
+ popq %rcx
+ popq %rax
+ popq %r8
+ popq %r9
+ popq %r10
+ popq %r11
+ popq %r12
+ popq %r13
+ popq %r14
+ popq %r15
+
+ movq %rbp, %rsp
+ popq %rbp
+ addq $16, %rsp
+ iretq
+
+
+#-------------------------------------------------------------------------------------
+# AsmGetAddressMap (&AddressMap);
+#-------------------------------------------------------------------------------------
+# comments here for definition of address map
+ASM_GLOBAL ASM_PFX(GetTemplateAddressMap)
+ASM_PFX(GetTemplateAddressMap):
+
+ movabsq $Exception0Handle, %rax
+ movq %rax, (%rcx)
+ movq $(Exception1Handle - Exception0Handle), 0x08(%rcx)
+
+ ret
+
+#END
+
+
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.asm b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.asm
new file mode 100644
index 0000000000..1fa7cb8702
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.asm
@@ -0,0 +1,407 @@
+;------------------------------------------------------------------------------ ;
+; Copyright (c) 2012, Intel Corporation. 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
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+; ExceptionHandlerAsm.Asm
+;
+; Abstract:
+;
+; x64 CPU Exception Handler
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+;
+; CommonExceptionHandler()
+;
+CommonExceptionHandler PROTO C
+
+EXTRN mErrorCodeFlag:DWORD ; Error code flags for exceptions
+
+data SEGMENT
+
+CommonEntryAddr dq CommonInterruptEntry;
+
+.code
+
+Exception0Handle:
+ push 0
+ jmp qword ptr [CommonEntryAddr]
+Exception1Handle:
+ push 1
+ jmp qword ptr [CommonEntryAddr]
+Exception2Handle:
+ push 2
+ jmp qword ptr [CommonEntryAddr]
+Exception3Handle:
+ push 3
+ jmp qword ptr [CommonEntryAddr]
+Exception4Handle:
+ push 4
+ jmp qword ptr [CommonEntryAddr]
+Exception5Handle:
+ push 5
+ jmp qword ptr [CommonEntryAddr]
+Exception6Handle:
+ push 6
+ jmp qword ptr [CommonEntryAddr]
+Exception7Handle:
+ push 7
+ jmp qword ptr [CommonEntryAddr]
+Exception8Handle:
+ push 8
+ jmp qword ptr [CommonEntryAddr]
+Exception9Handle:
+ push 9
+ jmp qword ptr [CommonEntryAddr]
+Exception10Handle:
+ push 10
+ jmp qword ptr [CommonEntryAddr]
+Exception11Handle:
+ push 11
+ jmp qword ptr [CommonEntryAddr]
+Exception12Handle:
+ push 12
+ jmp qword ptr [CommonEntryAddr]
+Exception13Handle:
+ push 13
+ jmp qword ptr [CommonEntryAddr]
+Exception14Handle:
+ push 14
+ jmp qword ptr [CommonEntryAddr]
+Exception15Handle:
+ push 15
+ jmp qword ptr [CommonEntryAddr]
+Exception16Handle:
+ push 16
+ jmp qword ptr [CommonEntryAddr]
+Exception17Handle:
+ push 17
+ jmp qword ptr [CommonEntryAddr]
+Exception18Handle:
+ push 18
+ jmp qword ptr [CommonEntryAddr]
+Exception19Handle:
+ push 19
+ jmp qword ptr [CommonEntryAddr]
+Exception20Handle:
+ push 20
+ jmp qword ptr [CommonEntryAddr]
+Exception21Handle:
+ push 21
+ jmp qword ptr [CommonEntryAddr]
+Exception22Handle:
+ push 22
+ jmp qword ptr [CommonEntryAddr]
+Exception23Handle:
+ push 23
+ jmp qword ptr [CommonEntryAddr]
+Exception24Handle:
+ push 24
+ jmp qword ptr [CommonEntryAddr]
+Exception25Handle:
+ push 25
+ jmp qword ptr [CommonEntryAddr]
+Exception26Handle:
+ push 26
+ jmp qword ptr [CommonEntryAddr]
+Exception27Handle:
+ push 27
+ jmp qword ptr [CommonEntryAddr]
+Exception28Handle:
+ push 28
+ jmp qword ptr [CommonEntryAddr]
+Exception29Handle:
+ push 29
+ jmp qword ptr [CommonEntryAddr]
+Exception30Handle:
+ push 30
+ jmp qword ptr [CommonEntryAddr]
+Exception31Handle:
+ push 31
+ jmp qword ptr [CommonEntryAddr]
+
+;CommonInterruptEntrypoint:
+;---------------------------------------;
+; _CommonEntry ;
+;----------------------------------------------------------------------------;
+; The follow algorithm is used for the common interrupt routine.
+; Entry from each interrupt with a push eax and eax=interrupt number
+
+;---------------------------------------;
+; CommonInterruptEntry ;
+;---------------------------------------;
+; The follow algorithm is used for the common interrupt routine.
+
+CommonInterruptEntry PROC PUBLIC
+ cli
+ ;
+ ; All interrupt handlers are invoked through interrupt gates, so
+ ; IF flag automatically cleared at the entry point
+ ;
+ ;
+ ; Calculate vector number
+ ;
+ xchg rcx, [rsp] ; get the return address of call, actually, it is the address of vector number.
+ cmp ecx, 32 ; Intel reserved vector for exceptions?
+ jae NoErrorCode
+ bt mErrorCodeFlag, ecx
+ jc @F
+
+NoErrorCode:
+
+ ;
+ ; Push a dummy error code on the stack
+ ; to maintain coherent stack map
+ ;
+ push [rsp]
+ mov qword ptr [rsp + 8], 0
+@@:
+ push rbp
+ mov rbp, rsp
+
+ ;
+ ; Stack:
+ ; +---------------------+ <-- 16-byte aligned ensured by processor
+ ; + Old SS +
+ ; +---------------------+
+ ; + Old RSP +
+ ; +---------------------+
+ ; + RFlags +
+ ; +---------------------+
+ ; + CS +
+ ; +---------------------+
+ ; + RIP +
+ ; +---------------------+
+ ; + Error Code +
+ ; +---------------------+
+ ; + RCX / Vector Number +
+ ; +---------------------+
+ ; + RBP +
+ ; +---------------------+ <-- RBP, 16-byte aligned
+ ;
+
+
+ ;
+ ; Since here the stack pointer is 16-byte aligned, so
+ ; EFI_FX_SAVE_STATE_X64 of EFI_SYSTEM_CONTEXT_x64
+ ; is 16-byte aligned
+ ;
+
+;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
+;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
+ push r15
+ push r14
+ push r13
+ push r12
+ push r11
+ push r10
+ push r9
+ push r8
+ push rax
+ push qword ptr [rbp + 8] ; RCX
+ push rdx
+ push rbx
+ push qword ptr [rbp + 48] ; RSP
+ push qword ptr [rbp] ; RBP
+ push rsi
+ push rdi
+
+;; UINT64 Gs, Fs, Es, Ds, Cs, Ss; insure high 16 bits of each is zero
+ movzx rax, word ptr [rbp + 56]
+ push rax ; for ss
+ movzx rax, word ptr [rbp + 32]
+ push rax ; for cs
+ mov rax, ds
+ push rax
+ mov rax, es
+ push rax
+ mov rax, fs
+ push rax
+ mov rax, gs
+ push rax
+
+ mov [rbp + 8], rcx ; save vector number
+
+;; UINT64 Rip;
+ push qword ptr [rbp + 24]
+
+;; UINT64 Gdtr[2], Idtr[2];
+ xor rax, rax
+ push rax
+ push rax
+ sidt [rsp]
+ xchg rax, [rsp + 2]
+ xchg rax, [rsp]
+ xchg rax, [rsp + 8]
+
+ xor rax, rax
+ push rax
+ push rax
+ sgdt [rsp]
+ xchg rax, [rsp + 2]
+ xchg rax, [rsp]
+ xchg rax, [rsp + 8]
+
+;; UINT64 Ldtr, Tr;
+ xor rax, rax
+ str ax
+ push rax
+ sldt ax
+ push rax
+
+;; UINT64 RFlags;
+ push qword ptr [rbp + 40]
+
+;; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
+ mov rax, cr8
+ push rax
+ mov rax, cr4
+ or rax, 208h
+ mov cr4, rax
+ push rax
+ mov rax, cr3
+ push rax
+ mov rax, cr2
+ push rax
+ xor rax, rax
+ push rax
+ mov rax, cr0
+ push rax
+
+;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+ mov rax, dr7
+ push rax
+ mov rax, dr6
+ push rax
+ mov rax, dr3
+ push rax
+ mov rax, dr2
+ push rax
+ mov rax, dr1
+ push rax
+ mov rax, dr0
+ push rax
+
+;; FX_SAVE_STATE_X64 FxSaveState;
+ sub rsp, 512
+ mov rdi, rsp
+ db 0fh, 0aeh, 07h ;fxsave [rdi]
+
+;; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
+ cld
+
+;; UINT32 ExceptionData;
+ push qword ptr [rbp + 16]
+
+;; Prepare parameter and call
+ mov rcx, [rbp + 8]
+ mov rdx, rsp
+ ;
+ ; Per X64 calling convention, allocate maximum parameter stack space
+ ; and make sure RSP is 16-byte aligned
+ ;
+ sub rsp, 4 * 8 + 8
+ mov rax, CommonExceptionHandler
+ call rax
+ add rsp, 4 * 8 + 8
+
+ cli
+;; UINT64 ExceptionData;
+ add rsp, 8
+
+;; FX_SAVE_STATE_X64 FxSaveState;
+
+ mov rsi, rsp
+ db 0fh, 0aeh, 0Eh ; fxrstor [rsi]
+ add rsp, 512
+
+;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
+;; Skip restoration of DRx registers to support in-circuit emualators
+;; or debuggers set breakpoint in interrupt/exception context
+ add rsp, 8 * 6
+
+;; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
+ pop rax
+ mov cr0, rax
+ add rsp, 8 ; not for Cr1
+ pop rax
+ mov cr2, rax
+ pop rax
+ mov cr3, rax
+ pop rax
+ mov cr4, rax
+ pop rax
+ mov cr8, rax
+
+;; UINT64 RFlags;
+ pop qword ptr [rbp + 40]
+
+;; UINT64 Ldtr, Tr;
+;; UINT64 Gdtr[2], Idtr[2];
+;; Best not let anyone mess with these particular registers...
+ add rsp, 48
+
+;; UINT64 Rip;
+ pop qword ptr [rbp + 24]
+
+;; UINT64 Gs, Fs, Es, Ds, Cs, Ss;
+ pop rax
+ ; mov gs, rax ; not for gs
+ pop rax
+ ; mov fs, rax ; not for fs
+ ; (X64 will not use fs and gs, so we do not restore it)
+ pop rax
+ mov es, rax
+ pop rax
+ mov ds, rax
+ pop qword ptr [rbp + 32] ; for cs
+ pop qword ptr [rbp + 56] ; for ss
+
+;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
+;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
+ pop rdi
+ pop rsi
+ add rsp, 8 ; not for rbp
+ pop qword ptr [rbp + 48] ; for rsp
+ pop rbx
+ pop rdx
+ pop rcx
+ pop rax
+ pop r8
+ pop r9
+ pop r10
+ pop r11
+ pop r12
+ pop r13
+ pop r14
+ pop r15
+
+ mov rsp, rbp
+ pop rbp
+ add rsp, 16
+ iretq
+
+CommonInterruptEntry ENDP
+
+;-------------------------------------------------------------------------------------
+; GetTemplateAddressMap (&AddressMap);
+;-------------------------------------------------------------------------------------
+; comments here for definition of address map
+GetTemplateAddressMap PROC
+ mov rax, offset Exception0Handle
+ mov qword ptr [rcx], rax
+ mov qword ptr [rcx+8h], Exception1Handle - Exception0Handle
+ ret
+GetTemplateAddressMap ENDP
+
+END
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 15:58:50 +0000