diff options
Diffstat (limited to 'EdkModulePkg/Universal/DebugSupport')
16 files changed, 0 insertions, 5750 deletions
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.c b/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.c deleted file mode 100644 index a0ec6c5934..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.c +++ /dev/null @@ -1,151 +0,0 @@ -/*++
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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:
-
- DebugSupport.c
-
-Abstract:
-
- Top level C file for debug support driver. Contains initialization function.
-
-Revision History
-
---*/
-
-//
-// private header files
-//
-#include "plDebugSupport.h"
-
-//
-// This is a global that is the actual interface
-//
-EFI_DEBUG_SUPPORT_PROTOCOL gDebugSupportProtocolInterface = {
- EFI_ISA,
- GetMaximumProcessorIndex,
- RegisterPeriodicCallback,
- RegisterExceptionCallback,
- InvalidateInstructionCache
-};
-
-//
-// Driver Entry Point
-//
-EFI_STATUS
-InitializeDebugSupportDriver (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-/*++
-
-Routine Description:
- Driver entry point. Checks to see there's not already a DebugSupport protocol
- installed for the selected processor before installing protocol.
-
-Arguments:
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
-
-Returns:
-
- EFI_STATUS
-
---*/
-// TODO: ImageHandle - add argument and description to function comment
-// TODO: SystemTable - add argument and description to function comment
-{
- EFI_LOADED_IMAGE_PROTOCOL *LoadedImageProtocolPtr;
- EFI_STATUS Status;
- EFI_HANDLE Handle;
- EFI_HANDLE *HandlePtr;
- UINTN NumHandles;
- EFI_DEBUG_SUPPORT_PROTOCOL *DebugSupportProtocolPtr;
-
- //
- // Install Protocol Interface...
- //
- // First check to see that the debug support protocol for this processor
- // type is not already installed
- //
- Status = gBS->LocateHandleBuffer (
- ByProtocol,
- &gEfiDebugSupportProtocolGuid,
- NULL,
- &NumHandles,
- &HandlePtr
- );
-
- if (Status != EFI_NOT_FOUND) {
- do {
- NumHandles--;
- Status = gBS->OpenProtocol (
- HandlePtr[NumHandles],
- &gEfiDebugSupportProtocolGuid,
- (VOID **) &DebugSupportProtocolPtr,
- ImageHandle,
- NULL,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (Status == EFI_SUCCESS && DebugSupportProtocolPtr->Isa == EFI_ISA) {
- FreePool (HandlePtr);
- Status = EFI_ALREADY_STARTED;
- goto ErrExit;
- }
- } while (NumHandles > 0);
- FreePool (HandlePtr);
- }
-
- //
- // Get our image information and install platform specific unload handler
- //
- Status = gBS->OpenProtocol (
- ImageHandle,
- &gEfiLoadedImageProtocolGuid,
- (VOID **) &LoadedImageProtocolPtr,
- ImageHandle,
- NULL,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- ASSERT (!EFI_ERROR (Status));
- if (Status != EFI_SUCCESS) {
- goto ErrExit;
- }
-
- LoadedImageProtocolPtr->Unload = plUnloadDebugSupportDriver;
-
- //
- // Call hook for platform specific initialization
- //
- Status = plInitializeDebugSupportDriver ();
- ASSERT (!EFI_ERROR (Status));
- if (Status != EFI_SUCCESS) {
- goto ErrExit;
- }
-
- //
- // Install DebugSupport protocol to new handle
- //
- Handle = NULL;
- Status = gBS->InstallProtocolInterface (
- &Handle,
- &gEfiDebugSupportProtocolGuid,
- EFI_NATIVE_INTERFACE,
- &gDebugSupportProtocolInterface
- );
- ASSERT (!EFI_ERROR (Status));
- if (Status != EFI_SUCCESS) {
- goto ErrExit;
- }
-
-ErrExit:
- return Status;
-}
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.dxs b/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.dxs deleted file mode 100644 index 2061cf2117..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.dxs +++ /dev/null @@ -1,25 +0,0 @@ -/*++
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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:
-
- DebugSupport.dxs
-
-Abstract:
-
- Dependency expression source file.
-
---*/
-#include <DxeDepex.h>
-
-DEPENDENCY_START
- TRUE
-DEPENDENCY_END
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.msa b/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.msa deleted file mode 100644 index 6d1be7594a..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/DebugSupport.msa +++ /dev/null @@ -1,96 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?>
-<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
- <MsaHeader>
- <ModuleName>DebugSupport</ModuleName>
- <ModuleType>DXE_DRIVER</ModuleType>
- <GuidValue>911D584C-35F7-4955-BEF9-B452769DDC3A</GuidValue>
- <Version>1.0</Version>
- <Abstract>Component description file for DebugSupport module.</Abstract>
- <Description>This driver installs DebugSupport protocol for the selected processor.</Description>
- <Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
- <License>All rights reserved. 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.</License>
- <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
- </MsaHeader>
- <ModuleDefinitions>
- <SupportedArchitectures>IA32 X64 IPF</SupportedArchitectures>
- <BinaryModule>false</BinaryModule>
- <OutputFileBasename>DebugSupport</OutputFileBasename>
- </ModuleDefinitions>
- <LibraryClassDefinitions>
- <LibraryClass Usage="ALWAYS_CONSUMED" RecommendedInstanceGuid="bda39d3a-451b-4350-8266-81ab10fa0523">
- <Keyword>DebugLib</Keyword>
- <HelpText>Recommended libary Instance is PeiDxeDebugLibReportStatusCode instance in MdePkg.</HelpText>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>UefiDriverEntryPoint</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED" RecommendedInstanceGuid="f1bbe03d-2f28-4dee-bec7-d98d7a30c36a">
- <Keyword>BaseMemoryLib</Keyword>
- <HelpText>Recommended libary Instance is DxeMemoryLib instance in MdePkg.</HelpText>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED" RecommendedInstanceGuid="4674739d-3195-4fb2-8094-ac1d22d00194">
- <Keyword>MemoryAllocationLib</Keyword>
- <HelpText>Recommended libary Instance is DxeMemoryAllocationLib instance in MdePkg.</HelpText>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED">
- <Keyword>UefiBootServicesTableLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED" SupArchList="IA32 X64">
- <Keyword>BaseLib</Keyword>
- </LibraryClass>
- <LibraryClass Usage="ALWAYS_CONSUMED" SupArchList="IA32 X64">
- <Keyword>PcdLib</Keyword>
- </LibraryClass>
- </LibraryClassDefinitions>
- <SourceFiles>
- <Filename>DebugSupport.c</Filename>
- <Filename>DebugSupport.dxs</Filename>
- <Filename ToolChainFamily="MSFT" SupArchList="IA32">Ia32/AsmFuncs.asm</Filename>
- <Filename ToolChainFamily="GCC" SupArchList="IA32">Ia32/AsmFuncs.S</Filename>
- <Filename SupArchList="IA32">Ia32/plDebugSupport.h</Filename>
- <Filename SupArchList="IA32">Ia32/plDebugSupport.c</Filename>
- <Filename SupArchList="IPF">ipf/AsmFuncs.s</Filename>
- <Filename SupArchList="IPF">ipf/common.i</Filename>
- <Filename SupArchList="IPF">ipf/Ds64Macros.i</Filename>
- <Filename SupArchList="IPF">ipf/plDebugSupport.c</Filename>
- <Filename SupArchList="IPF">ipf/plDebugSupport.h</Filename>
- <Filename ToolChainFamily="MSFT" SupArchList="X64">x64/AsmFuncs.asm</Filename>
- <Filename ToolChainFamily="GCC" SupArchList="X64">x64/AsmFuncs.S</Filename>
- <Filename SupArchList="X64">x64/plDebugSupport.h</Filename>
- <Filename SupArchList="X64">x64/plDebugSupport.c</Filename>
- </SourceFiles>
- <PackageDependencies>
- <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
- <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
- </PackageDependencies>
- <Protocols>
- <Protocol Usage="SOMETIMES_PRODUCED">
- <ProtocolCName>gEfiDebugSupportProtocolGuid</ProtocolCName>
- <HelpText>If the debug support protocol for this processor type is not - already installed, this protocol will be installed. Otherwise, it will - be not installed again.</HelpText>
- </Protocol>
- <Protocol Usage="ALWAYS_CONSUMED">
- <ProtocolCName>gEfiLoadedImageProtocolGuid</ProtocolCName>
- </Protocol>
- </Protocols>
- <Externs>
- <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
- <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
- <Extern>
- <ModuleEntryPoint>InitializeDebugSupportDriver</ModuleEntryPoint>
- </Extern>
- </Externs>
- <PcdCoded>
- <PcdEntry PcdItemType="FEATURE_FLAG" Usage="ALWAYS_CONSUMED">
- <C_Name>PcdNtEmulatorEnable</C_Name>
- <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
- <HelpText>If this PCD is set as TRUE, NT emulator will be endabled.</HelpText>
- </PcdEntry>
- </PcdCoded>
-</ModuleSurfaceArea>
\ No newline at end of file diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.S b/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.S deleted file mode 100644 index 3063e82626..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.S +++ /dev/null @@ -1,270 +0,0 @@ -#****************************************************************************** -#* -#* Copyright (c) 2006, Intel Corporation -#* All rights reserved. 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. -#* -#****************************************************************************** - -.globl ASM_PFX(OrigVector) -.globl ASM_PFX(InterruptEntryStub) -.globl ASM_PFX(StubSize) -.globl ASM_PFX(CommonIdtEntry) -.globl ASM_PFX(FxStorSupport) - -ASM_PFX(AppEsp): .long 0x11111111 # ? -ASM_PFX(DebugEsp): .long 0x22222222 # ? -ASM_PFX(ExtraPush): .long 0x33333333 # ? -ASM_PFX(ExceptData): .long 0x44444444 # ? -ASM_PFX(Eflags): .long 0x55555555 # ? -ASM_PFX(OrigVector): .long 0x66666666 # ? -ASM_PFX(StubSize): .long ASM_PFX(InterruptEntryStubEnd) - ASM_PFX(InterruptEntryStub) - -.globl ASM_PFX(FxStorSupport) -ASM_PFX(FxStorSupport): - push %ebx - mov $0x1,%eax - cpuid - mov %edx,%eax - and $0x1000000,%eax - shr $0x18,%eax - pop %ebx - ret - -.globl ASM_PFX(GetIdtr) -ASM_PFX(GetIdtr): - push %ebp - mov %esp,%ebp - add $0xfffffff8,%esp - sidtl 0xfffffffa(%ebp) - mov 0xfffffffc(%ebp),%eax - leave - ret - -.globl ASM_PFX(WriteInterruptFlag) -ASM_PFX(WriteInterruptFlag): - push %ebp - mov %esp,%ebp - pushf - pop %eax - and $0x200,%eax - shr $0x9,%eax - mov 0x8(%ebp),%ecx - or %cl,%cl - jne ASM_PFX(WriteInterruptFlag+0x17) - cli - jmp ASM_PFX(WriteInterruptFlag+0x18) - sti - leave - ret - -.globl ASM_PFX(Vect2Desc) -ASM_PFX(Vect2Desc): - push %ebp - mov %esp,%ebp - mov 0xc(%ebp),%eax - mov 0x8(%ebp),%ecx - mov %ax,(%ecx) - movw $0x20,0x2(%ecx) - movw $0x8e00,0x4(%ecx) - shr $0x10,%eax - mov %ax,0x6(%ecx) - leave - ret - -.globl ASM_PFX(InterruptEntryStub) -ASM_PFX(InterruptEntryStub): - mov %esp,0x0 - mov $0x0,%esp - push $0x0 - jmp ASM_PFX(CommonIdtEntry) -.globl ASM_PFX(InterruptEntryStubEnd) -ASM_PFX(InterruptEntryStubEnd): - -.globl ASM_PFX(CommonIdtEntry) -ASM_PFX(CommonIdtEntry): - pusha - pushf - pop %eax - mov %eax,0x0 - cmpl $0x8,0x0 - jne ASM_PFX(CommonIdtEntry+0x20) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0xa,0x0 - jne ASM_PFX(CommonIdtEntry+0x35) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0xb,0x0 - jne ASM_PFX(CommonIdtEntry+0x4a) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0xc,0x0 - jne ASM_PFX(CommonIdtEntry+0x5f) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0xd,0x0 - jne ASM_PFX(CommonIdtEntry+0x74) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0xe,0x0 - jne ASM_PFX(CommonIdtEntry+0x89) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - cmpl $0x11,0x0 - jne ASM_PFX(CommonIdtEntry+0x9e) - movl $0x1,0x0 - jmp ASM_PFX(CommonIdtEntry+0xa8) - movl $0x0,0x0 - cmpl $0x1,0x0 - jne ASM_PFX(CommonIdtEntry+0xc8) - mov 0x0,%eax - mov (%eax),%ebx - mov %ebx,0x0 - add $0x4,%eax - mov %eax,0x0 - jmp ASM_PFX(CommonIdtEntry+0xd2) - movl $0x0,0x0 - mov 0xc(%esp),%eax - mov %eax,0x0 - mov 0x0,%eax - add $0xc,%eax - mov %eax,0xc(%esp) - mov %ss,%eax - push %eax - mov 0x0,%eax - movzwl 0x4(%eax),%eax - push %eax - mov %ds,%eax - push %eax - mov %es,%eax - push %eax - mov %fs,%eax - push %eax - mov %gs,%eax - push %eax - mov 0x0,%eax - pushl (%eax) - push $0x0 - push $0x0 - sidtl (%esp) - push $0x0 - push $0x0 - sgdtl (%esp) - xor %eax,%eax - str %eax - push %eax - sldt %eax - push %eax - mov 0x0,%eax - pushl 0x8(%eax) - mov %cr4,%eax - or $0x208,%eax - mov %eax,%cr4 - push %eax - mov %cr3,%eax - push %eax - mov %cr2,%eax - push %eax - push $0x0 - mov %cr0,%eax - push %eax - mov %db7,%eax - push %eax - xor %eax,%eax - mov %eax,%db7 - mov %db6,%eax - push %eax - xor %eax,%eax - mov %eax,%db6 - mov %db3,%eax - push %eax - mov %db2,%eax - push %eax - mov %db1,%eax - push %eax - mov %db0,%eax - push %eax - sub $0x200,%esp - mov %esp,%edi - fxsave (%edi) - mov 0x0,%eax - push %eax - mov %esp,%eax - push %eax - mov 0x0,%eax - push %eax - call ASM_PFX(CommonIdtEntry+0x184) - add $0x8,%esp - add $0x4,%esp - mov %esp,%esi - fxrstor (%esi) - add $0x200,%esp - pop %eax - mov %eax,%db0 - pop %eax - mov %eax,%db1 - pop %eax - mov %eax,%db2 - pop %eax - mov %eax,%db3 - add $0x4,%esp - pop %eax - mov %eax,%db7 - pop %eax - mov %eax,%cr0 - add $0x4,%esp - pop %eax - mov %eax,%cr2 - pop %eax - mov %eax,%cr3 - pop %eax - mov %eax,%cr4 - mov 0x0,%eax - popl 0x8(%eax) - add $0x18,%esp - popl (%eax) - pop %gs - pop %fs - pop %es - pop %ds - popl 0x4(%eax) - pop %ss - mov 0xc(%esp),%ebx - mov 0x0,%eax - add $0xc,%eax - cmp %eax,%ebx - je ASM_PFX(CommonIdtEntry+0x202) - mov 0x0,%eax - mov (%eax),%ecx - mov %ecx,(%ebx) - mov 0x4(%eax),%ecx - mov %ecx,0x4(%ebx) - mov 0x8(%eax),%ecx - mov %ecx,0x8(%ebx) - mov %ebx,%eax - mov %eax,0x0 - mov 0x0,%eax - mov %eax,0xc(%esp) - cmpl $0x68,0x0 - jne PhonyIretd+0xd - mov 0x0,%eax - mov 0x8(%eax),%ebx - and $0xfffffcff,%ebx - push %ebx - push %cs - push $0x0 - iret - -PhonyIretd: - popa - mov 0x0,%esp - jmp *0x0 - popa - mov 0x0,%esp - iret diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.asm b/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.asm deleted file mode 100644 index 28a43cfe63..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/AsmFuncs.asm +++ /dev/null @@ -1,548 +0,0 @@ -;******************************************************************************
-;*
-;* Copyright (c) 2006, Intel Corporation
-;* All rights reserved. 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.
-;*
-;******************************************************************************
-
-.586p
-.MODEL FLAT, C
-
-EXCPT32_DIVIDE_ERROR EQU 0
-EXCPT32_DEBUG EQU 1
-EXCPT32_NMI EQU 2
-EXCPT32_BREAKPOINT EQU 3
-EXCPT32_OVERFLOW EQU 4
-EXCPT32_BOUND EQU 5
-EXCPT32_INVALID_OPCODE EQU 6
-EXCPT32_DOUBLE_FAULT EQU 8
-EXCPT32_INVALID_TSS EQU 10
-EXCPT32_SEG_NOT_PRESENT EQU 11
-EXCPT32_STACK_FAULT EQU 12
-EXCPT32_GP_FAULT EQU 13
-EXCPT32_PAGE_FAULT EQU 14
-EXCPT32_FP_ERROR EQU 16
-EXCPT32_ALIGNMENT_CHECK EQU 17
-EXCPT32_MACHINE_CHECK EQU 18
-EXCPT32_SIMD EQU 19
-
-FXSTOR_FLAG EQU 01000000h ; bit cpuid 24 of feature flags
-
-;; The FXSTOR and FXRSTOR commands are used for saving and restoring the x87,
-;; MMX, SSE, SSE2, etc registers. The initialization of the debugsupport driver
-;; MUST check the CPUID feature flags to see that these instructions are available
-;; and fail to init if they are not.
-
-;; fxstor [edi]
-FXSTOR_EDI MACRO
- db 0fh, 0aeh, 00000111y ; mod = 00, reg/op = 000, r/m = 111 = [edi]
-ENDM
-
-;; fxrstor [esi]
-FXRSTOR_ESI MACRO
- db 0fh, 0aeh, 00001110y ; mod = 00, reg/op = 001, r/m = 110 = [esi]
-ENDM
-.DATA
-
-public OrigVector, InterruptEntryStub, StubSize, CommonIdtEntry, FxStorSupport
-
-StubSize dd InterruptEntryStubEnd - InterruptEntryStub
-AppEsp dd 11111111h ; ?
-DebugEsp dd 22222222h ; ?
-ExtraPush dd 33333333h ; ?
-ExceptData dd 44444444h ; ?
-Eflags dd 55555555h ; ?
-OrigVector dd 66666666h ; ?
-
-;; The declarations below define the memory region that will be used for the debug stack.
-;; The context record will be built by pushing register values onto this stack.
-;; It is imparitive that alignment be carefully managed, since the FXSTOR and
-;; FXRSTOR instructions will GP fault if their memory operand is not 16 byte aligned.
-;;
-;; The stub will switch stacks from the application stack to the debuger stack
-;; and pushes the exception number.
-;;
-;; Then we building the context record on the stack. Since the stack grows down,
-;; we push the fields of the context record from the back to the front. There
-;; are 132 bytes of stack used prior allocating the 512 bytes of stack to be
-;; used as the memory buffer for the fxstor instruction. Therefore address of
-;; the buffer used for the FXSTOR instruction is &Eax - 132 - 512, which
-;; must be 16 byte aligned.
-;;
-;; We carefully locate the stack to make this happen.
-;;
-;; For reference, the context structure looks like this:
-;; struct {
-;; UINT32 ExceptionData;
-;; FX_SAVE_STATE_IA32 FxSaveState; // 512 bytes, must be 16 byte aligned
-;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
-;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
-;; UINT32 EFlags;
-;; UINT32 Ldtr, Tr;
-;; UINT32 Gdtr[2], Idtr[2];
-;; UINT32 Eip;
-;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
-;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
-;; } SYSTEM_CONTEXT_IA32; // 32 bit system context record
-
-
-align 16
-DebugStackEnd db "DbgStkEnd >>>>>>" ;; 16 byte long string - must be 16 bytes to preserve alignment
- dd 1ffdh dup (000000000h) ;; 32K should be enough stack
- ;; This allocation is coocked to insure
- ;; that the the buffer for the FXSTORE instruction
- ;; will be 16 byte aligned also.
- ;;
-ExceptionNumber dd ? ;; first entry will be the vector number pushed by the stub
-
-DebugStackBegin db "<<<< DbgStkBegin" ;; initial debug ESP == DebugStackBegin, set in stub
-
-.CODE
-
-externdef InterruptDistrubutionHub:near
-
-;------------------------------------------------------------------------------
-; BOOLEAN
-; FxStorSupport (
-; void
-; )
-;
-; Abstract: Returns TRUE if FxStor instructions are supported
-;
-FxStorSupport PROC C PUBLIC
-
-;
-; cpuid corrupts ebx which must be preserved per the C calling convention
-;
- push ebx
- mov eax, 1
- cpuid
- mov eax, edx
- and eax, FXSTOR_FLAG
- shr eax, 24
- pop ebx
- ret
-FxStorSupport ENDP
-
-
-;------------------------------------------------------------------------------
-; DESCRIPTOR *
-; GetIdtr (
-; void
-; )
-;
-; Abstract: Returns physical address of IDTR
-;
-GetIdtr PROC C PUBLIC
- LOCAL IdtrBuf:FWORD
-
- sidt IdtrBuf
- mov eax, DWORD PTR IdtrBuf + 2
- ret
-GetIdtr ENDP
-
-
-;------------------------------------------------------------------------------
-; BOOLEAN
-; WriteInterruptFlag (
-; BOOLEAN NewState
-; )
-;
-; Abstract: Programs interrupt flag to the requested state and returns previous
-; state.
-;
-WriteInterruptFlag PROC C PUBLIC State:DWORD
-
- pushfd
- pop eax
- and eax, 200h
- shr eax, 9
- mov ecx, State
- .IF cl == 0
- cli
- .ELSE
- sti
- .ENDIF
- ret
-
-WriteInterruptFlag ENDP
-
-
-
-;------------------------------------------------------------------------------
-; void
-; Vect2Desc (
-; DESCRIPTOR * DestDesc,
-; void (*Vector) (void)
-; )
-;
-; Abstract: Encodes an IDT descriptor with the given physical address
-;
-Vect2Desc PROC C PUBLIC DestPtr:DWORD, Vector:DWORD
-
- mov eax, Vector
- mov ecx, DestPtr
- mov word ptr [ecx], ax ; write bits 15..0 of offset
- mov dx, cs
- mov word ptr [ecx+2], dx ; SYS_CODE_SEL from GDT
- mov word ptr [ecx+4], 0e00h OR 8000h ; type = 386 interrupt gate, present
- shr eax, 16
- mov word ptr [ecx+6], ax ; write bits 31..16 of offset
-
- ret
-
-Vect2Desc ENDP
-
-
-
-;------------------------------------------------------------------------------
-; InterruptEntryStub
-;
-; Abstract: This code is not a function, but is a small piece of code that is
-; copied and fixed up once for each IDT entry that is hooked.
-;
-InterruptEntryStub::
- mov AppEsp, esp ; save stack top
- mov esp, offset DebugStackBegin ; switch to debugger stack
- push 0 ; push vector number - will be modified before installed
- db 0e9h ; jump rel32
- dd 0 ; fixed up to relative address of CommonIdtEntry
-InterruptEntryStubEnd:
-
-
-
-;------------------------------------------------------------------------------
-; CommonIdtEntry
-;
-; Abstract: This code is not a function, but is the common part for all IDT
-; vectors.
-;
-CommonIdtEntry::
-;;
-;; At this point, the stub has saved the current application stack esp into AppEsp
-;; and switched stacks to the debug stack, where it pushed the vector number
-;;
-;; The application stack looks like this:
-;;
-;; ...
-;; (last application stack entry)
-;; eflags from interrupted task
-;; CS from interrupted task
-;; EIP from interrupted task
-;; Error code <-------------------- Only present for some exeption types
-;;
-;;
-
-
-;; The stub switched us to the debug stack and pushed the interrupt number.
-;;
-;; Next, construct the context record. It will be build on the debug stack by
-;; pushing the registers in the correct order so as to create the context structure
-;; on the debug stack. The context record must be built from the end back to the
-;; beginning because the stack grows down...
-;
-;; For reference, the context record looks like this:
-;;
-;; typedef
-;; struct {
-;; UINT32 ExceptionData;
-;; FX_SAVE_STATE_IA32 FxSaveState;
-;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
-;; UINT32 Cr0, Cr2, Cr3, Cr4;
-;; UINT32 EFlags;
-;; UINT32 Ldtr, Tr;
-;; UINT32 Gdtr[2], Idtr[2];
-;; UINT32 Eip;
-;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
-;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
-;; } SYSTEM_CONTEXT_IA32; // 32 bit system context record
-
-;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
- pushad
-
-;; Save interrupt state eflags register...
- pushfd
- pop eax
- mov dword ptr Eflags, eax
-
-;; We need to determine if any extra data was pushed by the exception, and if so, save it
-;; To do this, we check the exception number pushed by the stub, and cache the
-;; result in a variable since we'll need this again.
- .IF ExceptionNumber == EXCPT32_DOUBLE_FAULT
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_INVALID_TSS
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_SEG_NOT_PRESENT
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_STACK_FAULT
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_GP_FAULT
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_PAGE_FAULT
- mov ExtraPush, 1
- .ELSEIF ExceptionNumber == EXCPT32_ALIGNMENT_CHECK
- mov ExtraPush, 1
- .ELSE
- mov ExtraPush, 0
- .ENDIF
-
-;; If there's some extra data, save it also, and modify the saved AppEsp to effectively
-;; pop this value off the application's stack.
- .IF ExtraPush == 1
- mov eax, AppEsp
- mov ebx, [eax]
- mov ExceptData, ebx
- add eax, 4
- mov AppEsp, eax
- .ELSE
- mov ExceptData, 0
- .ENDIF
-
-;; The "pushad" above pushed the debug stack esp. Since what we're actually doing
-;; is building the context record on the debug stack, we need to save the pushed
-;; debug ESP, and replace it with the application's last stack entry...
- mov eax, [esp + 12]
- mov DebugEsp, eax
- mov eax, AppEsp
- add eax, 12
- ; application stack has eflags, cs, & eip, so
- ; last actual application stack entry is
- ; 12 bytes into the application stack.
- mov [esp + 12], eax
-
-;; continue building context record
-;; UINT32 Gs, Fs, Es, Ds, Cs, Ss; insure high 16 bits of each is zero
- mov eax, ss
- push eax
-
- ; CS from application is one entry back in application stack
- mov eax, AppEsp
- movzx eax, word ptr [eax + 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;
- ; Eip from application is on top of application stack
- mov eax, AppEsp
- push dword ptr [eax]
-
-;; UINT32 Gdtr[2], Idtr[2];
- push 0
- push 0
- sidt fword ptr [esp]
- push 0
- push 0
- sgdt fword ptr [esp]
-
-;; UINT32 Ldtr, Tr;
- xor eax, eax
- str ax
- push eax
- sldt ax
- push eax
-
-;; UINT32 EFlags;
-;; Eflags from application is two entries back in application stack
- mov eax, AppEsp
- push dword ptr [eax + 8]
-
-;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
-;; insure FXSAVE/FXRSTOR is enabled in CR4...
-;; ... while we're at it, make sure DE is also enabled...
- mov eax, cr4
- or eax, 208h
- mov cr4, eax
- push eax
- mov eax, cr3
- push eax
- mov eax, cr2
- push eax
- push 0
- mov eax, cr0
- push eax
-
-;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- mov eax, dr7
- push eax
-;; clear Dr7 while executing debugger itself
- xor eax, eax
- mov dr7, eax
-
- mov eax, dr6
- push eax
-;; insure all status bits in dr6 are clear...
- xor eax, eax
- mov dr6, 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
- ; IMPORTANT!! The debug stack has been carefully constructed to
- ; insure that esp and edi are 16 byte aligned when we get here.
- ; They MUST be. If they are not, a GP fault will occur.
- FXSTOR_EDI
-
-;; UINT32 ExceptionData;
- mov eax, ExceptData
- push eax
-
-; call to C code which will in turn call registered handler
-; pass in the vector number
- mov eax, esp
- push eax
- mov eax, ExceptionNumber
- push eax
- call InterruptDistrubutionHub
- add esp, 8
-
-; restore context...
-;; UINT32 ExceptionData;
- add esp, 4
-
-;; FX_SAVE_STATE_IA32 FxSaveState;
- mov esi, esp
- FXRSTOR_ESI
- add esp, 512
-
-;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- pop eax
- mov dr0, eax
- pop eax
- mov dr1, eax
- pop eax
- mov dr2, eax
- pop eax
- mov dr3, eax
-;; skip restore of dr6. We cleared dr6 during the context save.
- add esp, 4
- pop eax
- mov dr7, eax
-
-;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
- pop eax
- mov cr0, eax
- add esp, 4
- pop eax
- mov cr2, eax
- pop eax
- mov cr3, eax
- pop eax
- mov cr4, eax
-
-;; UINT32 EFlags;
- mov eax, AppEsp
- pop dword ptr [eax + 8]
-
-;; 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 [eax]
-
-;; UINT32 SegGs, SegFs, SegEs, SegDs, SegCs, SegSs;
-;; 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 [eax + 4]
- pop ss
-
-;; The next stuff to restore is the general purpose registers that were pushed
-;; using the "pushad" instruction.
-;;
-;; The value of ESP as stored in the context record is the application ESP
-;; including the 3 entries on the application stack caused by the exception
-;; itself. It may have been modified by the debug agent, so we need to
-;; determine if we need to relocate the application stack.
-
- mov ebx, [esp + 12] ; move the potentially modified AppEsp into ebx
- mov eax, AppEsp
- add eax, 12
- cmp ebx, eax
- je NoAppStackMove
-
- mov eax, AppEsp
- mov ecx, [eax] ; EIP
- mov [ebx], ecx
-
- mov ecx, [eax + 4] ; CS
- mov [ebx + 4], ecx
-
- mov ecx, [eax + 8] ; EFLAGS
- mov [ebx + 8], ecx
-
- mov eax, ebx ; modify the saved AppEsp to the new AppEsp
- mov AppEsp, eax
-NoAppStackMove:
- mov eax, DebugEsp ; restore the DebugEsp on the debug stack
- ; so our "popad" will not cause a stack switch
- mov [esp + 12], eax
-
- cmp ExceptionNumber, 068h
- jne NoChain
-
-Chain:
-
-;; Restore eflags so when we chain, the flags will be exactly as if we were never here.
-;; We gin up the stack to do an iretd so we can get ALL the flags.
- mov eax, AppEsp
- mov ebx, [eax + 8]
- and ebx, NOT 300h ; special handling for IF and TF
- push ebx
- push cs
- push PhonyIretd
- iretd
-PhonyIretd:
-
-;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
- popad
-
-;; Switch back to application stack
- mov esp, AppEsp
-
-;; Jump to original handler
- jmp OrigVector
-
-NoChain:
-;; UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
- popad
-
-;; Switch back to application stack
- mov esp, AppEsp
-
-;; We're outa here...
- iretd
-END
-
-
-
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.c b/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.c deleted file mode 100644 index 1eaa5ec591..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.c +++ /dev/null @@ -1,449 +0,0 @@ -/**@file
- IA32 specific debug support functions
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. 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.
-
-**/
-
-//
-// private header files
-//
-#include "plDebugSupport.h"
-
-//
-// This the global main table to keep track of the interrupts
-//
-IDT_ENTRY *IdtEntryTable = NULL;
-DESCRIPTOR NullDesc = 0;
-
-STATIC
-EFI_STATUS
-CreateEntryStub (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- OUT VOID **Stub
- )
-/*++
-
-Routine Description: Allocate pool for a new IDT entry stub. Copy the generic
- stub into the new buffer and fixup the vector number and jump target address.
-
-Arguments:
- ExceptionType - This is the exception type that the new stub will be created
- for.
- Stub - On successful exit, *Stub contains the newly allocated entry stub.
-Returns:
- Typically EFI_SUCCESS
- other possibilities are passed through from AllocatePool
-
---*/
-{
- UINT8 *StubCopy;
-
- StubCopy = *Stub;
-
- //
- // Fixup the stub code for this vector
- //
-
- // The stub code looks like this:
- //
- // 00000000 89 25 00000004 R mov AppEsp, esp ; save stack top
- // 00000006 BC 00008014 R mov esp, offset DbgStkBot ; switch to debugger stack
- // 0000000B 6A 00 push 0 ; push vector number - will be modified before installed
- // 0000000D E9 db 0e9h ; jump rel32
- // 0000000E 00000000 dd 0 ; fixed up to relative address of CommonIdtEntry
- //
-
- //
- // poke in the exception type so the second push pushes the exception type
- //
- StubCopy[0x0c] = (UINT8) ExceptionType;
-
- //
- // fixup the jump target to point to the common entry
- //
- *(UINT32 *) &StubCopy[0x0e] = (UINT32) CommonIdtEntry - (UINT32) &StubCopy[StubSize];
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Creates a nes entry stub. Then saves the current IDT entry and replaces it
- with an interrupt gate for the new entry point. The IdtEntryTable is updated
- with the new registered function.
-
- This code executes in boot services context. The stub entry executes in interrupt
- context.
-
-Arguments:
- ExceptionType - specifies which vector to hook.
- NewCallback - a pointer to the new function to be registered.
-
-Returns:
- EFI_SUCCESS
- Other possibilities are passed through by CreateEntryStub
-
---*/
-{
- BOOLEAN OldIntFlagState;
- EFI_STATUS Status;
-
- Status = CreateEntryStub (ExceptionType, (VOID **) &IdtEntryTable[ExceptionType].StubEntry);
- if (Status == EFI_SUCCESS) {
- OldIntFlagState = WriteInterruptFlag (0);
- ReadIdt (ExceptionType, &(IdtEntryTable[ExceptionType].OrigDesc));
-
- ((UINT16 *) &IdtEntryTable[ExceptionType].OrigVector)[0] = ((UINT16 *) &IdtEntryTable[ExceptionType].OrigDesc)[0];
- ((UINT16 *) &IdtEntryTable[ExceptionType].OrigVector)[1] = ((UINT16 *) &IdtEntryTable[ExceptionType].OrigDesc)[3];
-
- Vect2Desc (&IdtEntryTable[ExceptionType].NewDesc, IdtEntryTable[ExceptionType].StubEntry);
- IdtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
- WriteIdt (ExceptionType, &(IdtEntryTable[ExceptionType].NewDesc));
- WriteInterruptFlag (OldIntFlagState);
- }
-
- return Status;
-}
-
-STATIC
-EFI_STATUS
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- Undoes HookEntry. This code executes in boot services context.
-
-Arguments:
- ExceptionType - specifies which entry to unhook
-
-Returns:
- EFI_SUCCESS
-
---*/
-{
- BOOLEAN OldIntFlagState;
-
- OldIntFlagState = WriteInterruptFlag (0);
- WriteIdt (ExceptionType, &(IdtEntryTable[ExceptionType].OrigDesc));
- WriteInterruptFlag (OldIntFlagState);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ManageIdtEntryTable (
- VOID (*NewCallback)(),
- EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is the main worker function that manages the state of the interrupt
- handlers. It both installs and uninstalls interrupt handlers based on the
- value of NewCallback. If NewCallback is NULL, then uninstall is indicated.
- If NewCallback is non-NULL, then install is indicated.
-
-Arguments:
- NewCallback - If non-NULL, NewCallback specifies the new handler to register.
- If NULL, specifies that the previously registered handler should
- be uninstalled.
- ExceptionType - Indicates which entry to manage
-
-Returns:
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- EFI_STATUS Status;
-
- Status = EFI_SUCCESS;
-
- if (FeaturePcdGet (PcdNtEmulatorEnable)) {
- if (CompareDescriptor (&IdtEntryTable[ExceptionType].NewDesc, &NullDesc)) {
- //
- // we've already installed to this vector
- //
- if (NewCallback != NULL) {
- //
- // if the input handler is non-null, error
- //
- Status = EFI_ALREADY_STARTED;
- } else {
- Status = UnhookEntry (ExceptionType);
- }
- } else {
- //
- // no user handler installed on this vector
- //
- if (NewCallback == NULL) {
- //
- // if the input handler is null, error
- //
- Status = EFI_INVALID_PARAMETER;
- } else {
- Status = HookEntry (ExceptionType, NewCallback);
- }
- }
- }
-
- return Status;
-}
-
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-{
- *MaxProcessorIndex = 0;
- return (EFI_SUCCESS);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK PeriodicCallback
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- return ManageIdtEntryTable (PeriodicCallback, SYSTEM_TIMER_VECTOR);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
-
- This code executes in boot services context.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- return ManageIdtEntryTable (NewCallback, ExceptionType);
-}
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
- Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-{
- AsmWbinvd ();
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- Initializes driver's handler registration database.
-
- This code executes in boot services context.
-
-Arguments:
- None
-
-Returns:
- EFI_SUCCESS
- EFI_UNSUPPORTED - if IA32 processor does not support FXSTOR/FXRSTOR instructions,
- the context save will fail, so these processor's are not supported.
- EFI_OUT_OF_RESOURCES - not resource to finish initialization
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- if (!FxStorSupport ()) {
- return EFI_UNSUPPORTED;
- }
-
- IdtEntryTable = AllocateZeroPool (sizeof (IDT_ENTRY) * NUM_IDT_ENTRIES);
- if (IdtEntryTable == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- IdtEntryTable[ExceptionType].StubEntry = (DEBUG_PROC) (UINTN) AllocatePool (StubSize);
- if (IdtEntryTable[ExceptionType].StubEntry == NULL) {
- goto ErrorCleanup;
- }
-
- CopyMem ((VOID *)(UINTN)IdtEntryTable[ExceptionType].StubEntry, InterruptEntryStub, StubSize);
- }
- return EFI_SUCCESS;
-
-ErrorCleanup:
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- if (IdtEntryTable[ExceptionType].StubEntry != NULL) {
- FreePool ((VOID *)(UINTN)IdtEntryTable[ExceptionType].StubEntry);
- }
- }
- FreePool (IdtEntryTable);
-
- return EFI_OUT_OF_RESOURCES;
-}
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- This is the callback that is written to the LoadedImage protocol instance
- on the image handle. It uninstalls all registered handlers and frees all entry
- stub memory.
-
- This code executes in boot services context.
-
-Arguments:
- ImageHandle - The image handle of the unload handler
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- ManageIdtEntryTable (NULL, ExceptionType);
- }
-
- FreePool (IdtEntryTable);
- return EFI_SUCCESS;
-}
-
-VOID
-InterruptDistrubutionHub (
- EFI_EXCEPTION_TYPE ExceptionType,
- EFI_SYSTEM_CONTEXT_IA32 *ContextRecord
- )
-/*++
-
-Routine Description: Common piece of code that invokes the registered handlers.
-
- This code executes in exception context so no efi calls are allowed.
-
-Arguments:
- ExceptionType - exception type
- ContextRecord - system context
-
-Returns:
-
- None
-
---*/
-{
- if (IdtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- if (ExceptionType != SYSTEM_TIMER_VECTOR) {
- IdtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, ContextRecord);
- } else {
- OrigVector = IdtEntryTable[ExceptionType].OrigVector;
- IdtEntryTable[ExceptionType].RegisteredCallback (ContextRecord);
- }
- }
-}
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.h b/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.h deleted file mode 100644 index ce8a3fedae..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/Ia32/plDebugSupport.h +++ /dev/null @@ -1,319 +0,0 @@ -/**@file
- IA32 specific debug support macros, typedefs and prototypes.
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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 _PLDEBUG_SUPPORT_H
-#define _PLDEBUG_SUPPORT_H
-
-#define NUM_IDT_ENTRIES 0x78
-#define SYSTEM_TIMER_VECTOR 0x68
-#define VECTOR_ENTRY_PAGES 1
-#define CopyDescriptor(Dest, Src) CopyMem ((Dest), (Src), sizeof (DESCRIPTOR))
-#define ZeroDescriptor(Dest) CopyDescriptor ((Dest), &NullDesc)
-#define ReadIdt(Vector, Dest) CopyDescriptor ((Dest), &((GetIdtr ())[(Vector)]))
-#define WriteIdt(Vector, Src) CopyDescriptor (&((GetIdtr ())[(Vector)]), (Src))
-#define CompareDescriptor(Desc1, Desc2) CompareMem ((Desc1), (Desc2), sizeof (DESCRIPTOR))
-#define EFI_ISA IsaIa32
-#define FF_FXSR (1 << 24)
-
-typedef UINT64 DESCRIPTOR;
-
-typedef
-VOID
-(*DEBUG_PROC) (
- VOID
- )
-;
-
-typedef struct {
- DESCRIPTOR OrigDesc;
- DEBUG_PROC OrigVector;
- DESCRIPTOR NewDesc;
- DEBUG_PROC StubEntry;
- VOID (*RegisteredCallback) ();
-} IDT_ENTRY;
-
-extern EFI_SYSTEM_CONTEXT SystemContext;
-extern UINT8 InterruptEntryStub[];
-extern UINT32 StubSize;
-extern VOID (*OrigVector) (VOID);
-
-VOID
-CommonIdtEntry (
- VOID
- )
-/*++
-
-Routine Description:
-
- Generic IDT entry
-
-Arguments:
-
- None
-
-Returns:
-
- None
-
---*/
-;
-
-
-BOOLEAN
-FxStorSupport (
- VOID
- )
-/*++
-
-Routine Description:
-
- Check whether FXSTOR is supported
-
-Arguments:
-
- None
-
-Returns:
-
- TRUE - supported
- FALSE - not supported
-
---*/
-;
-
-DESCRIPTOR *
-GetIdtr (
- VOID
- )
-/*++
-
-Routine Description:
-
- Return the physical address of IDTR
-
-Arguments:
-
- None
-
-Returns:
-
- The physical address of IDTR
-
---*/
-;
-
-VOID
-Vect2Desc (
- DESCRIPTOR * DestDesc,
- VOID (*Vector) (VOID)
- )
-/*++
-
-Routine Description:
-
- Encodes an IDT descriptor with the given physical address
-
-Arguments:
-
- DestDesc - The IDT descriptor address
- Vector - The interrupt vector entry
-
-Returns:
-
- None
-
---*/
-;
-
-BOOLEAN
-WriteInterruptFlag (
- BOOLEAN NewState
- )
-/*++
-
-Routine Description:
-
- Programs interrupt flag to the requested state and returns previous
- state.
-
-Arguments:
-
- NewState - New interrupt status
-
-Returns:
-
- Old interrupt status
-
---*/
-;
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- Initializes driver's handler registration database.
-
- This code executes in boot services context.
-
-Arguments:
- None
-
-Returns:
- EFI_SUCCESS
- EFI_UNSUPPORTED - if IA32 processor does not support FXSTOR/FXRSTOR instructions,
- the context save will fail, so these processor's are not supported.
- EFI_OUT_OF_RESOURCES - not resource to finish initialization
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- This is the callback that is written to the LoadedImage protocol instance
- on the image handle. It uninstalls all registered handlers and frees all entry
- stub memory.
-
- This code executes in boot services context.
-
-Arguments:
- ImageHandle - The image handle of the unload handler
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-;
-
-//
-// DebugSupport protocol member functions
-//
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK PeriodicCallback
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
-
- This code executes in boot services context.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
- Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-;
-
-#endif
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/AsmFuncs.s b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/AsmFuncs.s deleted file mode 100644 index 866e5db9a8..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/AsmFuncs.s +++ /dev/null @@ -1,1389 +0,0 @@ -//++
-// Copyright (c) 2006, Intel Corporation
-// All rights reserved. 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:
-//
-// AsmFuncs.s
-//
-// Abstract:
-//
-// Low level IPF routines used by the debug support driver
-//
-// Revision History:
-//
-//--
-
-
-#include "common.i"
-#include "Ds64Macros.i"
-
-.globl PatchSaveBuffer
-.globl IpfContextBuf
-.globl CommonHandler
-.globl ExternalInterruptCount
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// InstructionCacheFlush
-//
-// Description:
-// Flushes instruction cache for specified number of bytes
-//
- .globl InstructionCacheFlush
- .proc InstructionCacheFlush
- .align 32
-InstructionCacheFlush::
- { .mii
- alloc r3=2, 0, 0, 0
- cmp4.leu p0,p6=32, r33;;
- (p6) mov r33=32;;
- }
- { .mii
- nop.m 0
- zxt4 r29=r33;;
- dep.z r30=r29, 0, 5;;
- }
- { .mii
- cmp4.eq p0,p7=r0, r30
- shr.u r28=r29, 5;;
- (p7) adds r28=1, r28;;
- }
- { .mii
- nop.m 0
- shl r27=r28, 5;;
- zxt4 r26=r27;;
- }
- { .mfb
- add r31=r26, r32
- nop.f 0
- nop.b 0
- }
-LoopBack: // $L143:
- { .mii
- fc r32
- adds r32=32, r32;;
- cmp.ltu p14,p15=r32, r31
- }
- { .mfb
- nop.m 0
- nop.f 0
- //(p14) br.cond.dptk.few $L143#;;
- (p14) br.cond.dptk.few LoopBack;;
- }
- { .mmi
- sync.i;;
- srlz.i
- nop.i 0;;
- }
- { .mfb
- nop.m 0
- nop.f 0
- br.ret.sptk.few b0;;
- }
- .endp InstructionCacheFlush
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// ChainHandler
-//
-// Description:
-// Chains an interrupt handler
-//
-// The purpose of this function is to enable chaining of the external interrupt.
-// Since there's no clean SAL abstraction for doing this, we must do it
-// surreptitiously.
-//
-// The reserved IVT entry at offset 0x3400 is coopted for use by this handler.
-// According to Itanium architecture, it is reserved. Strictly speaking, this is
-// not safe, as we're cheating and violating the Itanium architecture. However,
-// as long as we're the only ones cheating, we should be OK. Without hooks in
-// the SAL to enable IVT management, there aren't many good options.
-//
-// The strategy is to replace the first bundle of the external interrupt handler
-// with our own that will branch into a piece of code we've supplied and located
-// in the reserved IVT entry. Only the first bundle of the external interrupt
-// IVT entry is modified.
-//
-// The original bundle is moved and relocated to space
-// allocated within the reserved IVT entry. The next bundle following is
-// is generated to go a hard coded branch back to the second bundle of the
-// external interrupt IVT entry just in case the first bundle had no branch.
-//
-// Our new code will execute our handler, and then fall through to the
-// original bundle after restoring all context appropriately.
-//
-// The following is a representation of what the IVT memory map looks like with
-// our chained handler installed:
-//
-//
-//
-//
-//
-// This IVT entry is Failsafe bundle
-// reserved by the
-// Itanium architecture Original bundle 0
-// and is used for
-// for locating our
-// handler and the
-// original bundle Patch code...
-// zero of the ext
-// interrupt handler
-//
-// RSVD (3400) Unused
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-//
-// EXT_INT (3000) Bundle 0 Bundle zero - This one is
-// modified, all other bundles
-// in the EXT_INT entry are
-// untouched.
-//
-//
-// Arguments:
-//
-// Returns:
-//
-// Notes:
-//
-//
- .globl ChainHandler
- .proc ChainHandler
-ChainHandler:
-
- NESTED_SETUP( 0,2+3,3,0 )
-
- mov r8=1 // r8 = success
- mov r2=cr.iva;;
-//
-// NOTE: There's a potential hazard here in that we're simply stealing a bunch of
-// bundles (memory) from the IVT and assuming there's no catastrophic side effect.
-//
-// First, save IVT area we're taking over with the patch so we can restore it later
-//
- addl out0=PATCH_ENTRY_OFFSET, r2 // out0 = source buffer
- movl out1=PatchSaveBuffer // out1 = destination buffer
- mov out2=0x40;; // out2 = number of bundles to copy... save entire IDT entry
- br.call.sptk.few b0 = CopyBundles
-
-// Next, copy the patch code into the IVT
- movl out0=PatchCode // out0 = source buffer of patch code
- addl out1=PATCH_OFFSET, r2 // out1 = destination buffer - in IVT
- mov out2=NUM_PATCH_BUNDLES;; // out2 = number of bundles to copy
- br.call.sptk.few b0 = CopyBundles
-
-
-// copy original bundle 0 from the external interrupt handler to the
-// appropriate place in the reserved IVT interrupt slot
- addl out0=EXT_INT_ENTRY_OFFSET, r2 // out0 = source buffer
- addl out1=RELOCATED_EXT_INT, r2 // out1 = destination buffer - in reserved IVT
- mov out2=1;; // out2 = copy 1 bundle
- br.call.sptk.few b0 = CopyBundles
-
-// Now relocate it there because it very likely had a branch instruction that
-// that must now be fixed up.
- addl out0=RELOCATED_EXT_INT, r2 // out0 = new runtime address of bundle - in reserved IVT
- addl out1=EXT_INT_ENTRY_OFFSET, r2;;// out1 = IP address of previous location
- mov out2=out0;; // out2 = IP address of new location
- br.call.sptk.few b0 = RelocateBundle
-
-// Now copy into the failsafe branch into the next bundle just in case
-// the original ext int bundle 0 bundle did not contain a branch instruction
- movl out0=FailsafeBranch // out0 = source buffer
- addl out1=FAILSAFE_BRANCH_OFFSET, r2 // out1 = destination buffer - in reserved IVT
- mov out2=1;; // out2 = copy 1 bundle
- br.call.sptk.few b0 = CopyBundles
-
-// Last, copy in our replacement for the external interrupt IVT entry bundle 0
- movl out0=PatchCodeNewBun0 // out0 = source buffer - our replacement bundle 0
- addl out1=EXT_INT_ENTRY_OFFSET, r2 // out1 = destination buffer - bundle 0 of External interrupt entry
- mov out2=1;; // out2 = copy 1 bundle
- br.call.sptk.few b0 = CopyBundles
-
-ChainHandlerDone:
- NESTED_RETURN
-
- .endp ChainHandler
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// UnchainHandler
-//
-// Description:
-// Unchains an interrupt handler
-//
-// Arguments:
-//
-// Returns:
-//
-// Notes:
-//
-//
- .globl UnchainHandler
- .proc UnchainHandler
-
-UnchainHandler:
-
- NESTED_SETUP( 0,2+3,3,0 )
-
- mov r8=1 // r8 = success
- mov r2=cr.iva;; // r2 = interrupt vector address
-
-// First copy original Ext Int bundle 0 back to it's proper home...
- addl out0=RELOCATED_EXT_INT, r2 // out0 = source - in reserved IVT
- addl out1=EXT_INT_ENTRY_OFFSET, r2 // out1 = destination buffer - first bundle of Ext Int entry
- mov out2=1;; // out2 = copy 1 bundle
- br.call.sptk.few b0 = CopyBundles
-
-// Now, relocate it again...
- addl out0=EXT_INT_ENTRY_OFFSET, r2 // out1 = New runtime address
- addl out1=RELOCATED_EXT_INT, r2;; // out0 = IP address of previous location
- mov out2=out0;; // out2 = IP address of new location
- br.call.sptk.few b0 = RelocateBundle
-
-// Last, restore the patch area
- movl out0=PatchSaveBuffer // out0 = source buffer
- addl out1=PATCH_ENTRY_OFFSET, r2 // out1 = destination buffer
- mov out2=0x40;; // out2 = number of bundles to copy... save entire IDT entry
- br.call.sptk.few b0 = CopyBundles
-
-UnchainHandlerDone:
- NESTED_RETURN
-
- .endp UnchainHandler
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// CopyBundles
-//
-// Description:
-// Copies instruction bundles - flushes icache as necessary
-//
-// Arguments:
-// in0 - Bundle source
-// in1 - Bundle destination
-// in2 - Bundle count
-//
-// Returns:
-//
-// Notes:
-// This procedure is a leaf routine
-//
- .proc CopyBundles
-
-CopyBundles:
-
- NESTED_SETUP(3,2+1,0,0)
-
- shl in2=in2, 1;; // in2 = count of 8 byte blocks to copy
-
-CopyBundlesLoop:
-
- cmp.eq p14, p15 = 0, in2;; // Check if done
-(p14) br.sptk.few CopyBundlesDone;;
-
- ld8 loc2=[in0], 0x8;; // loc2 = source bytes
- st8 [in1]=loc2;; // [in1] = destination bytes
- fc in1;; // Flush instruction cache
- sync.i;; // Ensure local and remote data/inst caches in sync
- srlz.i;; // Ensure sync has been observed
- add in1=0x8, in1;; // in1 = next destination
- add in2=-1, in2;; // in2 = decrement 8 bytes blocks to copy
- br.sptk.few CopyBundlesLoop;;
-
-CopyBundlesDone:
- NESTED_RETURN
-
- .endp CopyBundles
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// RelocateBundle
-//
-// Description:
-// Relocates an instruction bundle by updating any ip-relative branch instructions.
-//
-// Arguments:
-// in0 - Runtime address of bundle
-// in1 - IP address of previous location of bundle
-// in2 - IP address of new location of bundle
-//
-// Returns:
-// in0 - 1 if successful or 0 if unsuccessful
-//
-// Notes:
-// This routine examines all slots in the given bundle that are destined for the
-// branch execution unit. If any of these slots contain an IP-relative branch
-// namely instructions B1, B2, B3, or B6, the slot is fixed-up with a new relative
-// address. Errors can occur if a branch cannot be reached.
-//
- .proc RelocateBundle
-
-RelocateBundle:
-
- NESTED_SETUP(3,2+4,3,0)
-
- mov loc2=SLOT0 // loc2 = slot index
- mov loc5=in0;; // loc5 = runtime address of bundle
- mov in0=1;; // in0 = success
-
-RelocateBundleNextSlot:
-
- cmp.ge p14, p15 = SLOT2, loc2;; // Check if maximum slot
-(p15) br.sptk.few RelocateBundleDone
-
- mov out0=loc5;; // out0 = runtime address of bundle
- br.call.sptk.few b0 = GetTemplate
- mov loc3=out0;; // loc3 = instruction template
- mov out0=loc5 // out0 = runtime address of bundle
- mov out1=loc2;; // out1 = instruction slot number
- br.call.sptk.few b0 = GetSlot
- mov loc4=out0;; // loc4 = instruction encoding
- mov out0=loc4 // out0 = instuction encoding
- mov out1=loc2 // out1 = instruction slot number
- mov out2=loc3;; // out2 = instruction template
- br.call.sptk.few b0 = IsSlotBranch
- cmp.eq p14, p15 = 1, out0;; // Check if branch slot
-(p15) add loc2=1,loc2 // Increment slot
-(p15) br.sptk.few RelocateBundleNextSlot
- mov out0=loc4 // out0 = instuction encoding
- mov out1=in1 // out1 = IP address of previous location
- mov out2=in2;; // out2 = IP address of new location
- br.call.sptk.few b0 = RelocateSlot
- cmp.eq p14, p15 = 1, out1;; // Check if relocated slot
-(p15) mov in0=0 // in0 = failure
-(p15) br.sptk.few RelocateBundleDone
- mov out2=out0;; // out2 = instruction encoding
- mov out0=loc5 // out0 = runtime address of bundle
- mov out1=loc2;; // out1 = instruction slot number
- br.call.sptk.few b0 = SetSlot
- add loc2=1,loc2;; // Increment slot
- br.sptk.few RelocateBundleNextSlot
-
-RelocateBundleDone:
- NESTED_RETURN
-
- .endp RelocateBundle
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// RelocateSlot
-//
-// Description:
-// Relocates an instruction bundle by updating any ip-relative branch instructions.
-//
-// Arguments:
-// in0 - Instruction encoding (41-bits, right justified)
-// in1 - IP address of previous location of bundle
-// in2 - IP address of new location of bundle
-//
-// Returns:
-// in0 - Instruction encoding (41-bits, right justified)
-// in1 - 1 if successful otherwise 0
-//
-// Notes:
-// This procedure is a leaf routine
-//
- .proc RelocateSlot
-
-RelocateSlot:
- NESTED_SETUP(3,2+5,0,0)
- extr.u loc2=in0, 37, 4;; // loc2 = instruction opcode
- cmp.eq p14, p15 = 4, loc2;; // IP-relative branch (B1) or
- // IP-relative counted branch (B2)
-(p15) cmp.eq p14, p15 = 5, loc2;; // IP-relative call (B3)
-(p15) cmp.eq p14, p15 = 7, loc2;; // IP-relative predict (B6)
-(p15) mov in1=1 // Instruction did not need to be reencoded
-(p15) br.sptk.few RelocateSlotDone
- tbit.nz p14, p15 = in0, 36;; // put relative offset sign bit in p14
- extr.u loc2=in0, 13, 20;; // loc2 = relative offset in instruction
-(p14) movl loc3=0xfffffffffff00000;; // extend sign
-(p14) or loc2=loc2, loc3;;
- shl loc2=loc2,4;; // convert to byte offset instead of bundle offset
- add loc3=loc2, in1;; // loc3 = physical address of branch target
-(p14) sub loc2=r0,loc2;; // flip sign in loc2 if offset is negative
- sub loc4=loc3,in2;; // loc4 = relative offset from new ip to branch target
- cmp.lt p15, p14 = 0, loc4;; // get new sign bit
-(p14) sub loc5=r0,loc4 // get absolute value of offset
-(p15) mov loc5=loc4;;
- movl loc6=0x0FFFFFF;; // maximum offset in bytes for ip-rel branch
- cmp.gt p14, p15 = loc5, loc6;; // check to see we're not out of range for an ip-relative branch
-(p14) br.sptk.few RelocateSlotError
- cmp.lt p15, p14 = 0, loc4;; // store sign in p14 again
-(p14) dep in0=1,in0,36,1 // store sign bit in instruction
-(p15) dep in0=0,in0,36,1
- shr loc4=loc4, 4;; // convert back to bundle offset
- dep in0=loc4,in0,13,16;; // put first 16 bits of new offset into instruction
- shr loc4=loc4,16;;
- dep in0=loc4,in0,13+16,4 // put last 4 bits of new offset into instruction
- mov in1=1;; // in1 = success
- br.sptk.few RelocateSlotDone;;
-
-RelocateSlotError:
- mov in1=0;; // in1 = failure
-
-RelocateSlotDone:
- NESTED_RETURN
-
- .endp RelocateSlot
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// IsSlotBranch
-//
-// Description:
-// Determines if the given instruction is a branch instruction.
-//
-// Arguments:
-// in0 - Instruction encoding (41-bits, right justified)
-// in1 - Instruction slot number
-// in2 - Bundle template
-//
-// Returns:
-// in0 - 1 if branch or 0 if not branch
-//
-// Notes:
-// This procedure is a leaf routine
-//
-// IsSlotBranch recognizes all branch instructions by looking at the provided template.
-// The instruction encoding is only passed to this routine for future expansion.
-//
- .proc IsSlotBranch
-
-IsSlotBranch:
-
- NESTED_SETUP (3,2+0,0,0)
-
- mov in0=1;; // in0 = 1 which destroys the instruction
- andcm in2=in2,in0;; // in2 = even template to reduce compares
- mov in0=0;; // in0 = not a branch
- cmp.eq p14, p15 = 0x16, in2;; // Template 0x16 is BBB
-(p14) br.sptk.few IsSlotBranchTrue
- cmp.eq p14, p15 = SLOT0, in1;; // Slot 0 has no other possiblities
-(p14) br.sptk.few IsSlotBranchDone
- cmp.eq p14, p15 = 0x12, in2;; // Template 0x12 is MBB
-(p14) br.sptk.few IsSlotBranchTrue
- cmp.eq p14, p15 = SLOT1, in1;; // Slot 1 has no other possiblities
-(p14) br.sptk.few IsSlotBranchDone
- cmp.eq p14, p15 = 0x10, in2;; // Template 0x10 is MIB
-(p14) br.sptk.few IsSlotBranchTrue
- cmp.eq p14, p15 = 0x18, in2;; // Template 0x18 is MMB
-(p14) br.sptk.few IsSlotBranchTrue
- cmp.eq p14, p15 = 0x1C, in2;; // Template 0x1C is MFB
-(p14) br.sptk.few IsSlotBranchTrue
- br.sptk.few IsSlotBranchDone
-
-IsSlotBranchTrue:
- mov in0=1;; // in0 = branch
-
-IsSlotBranchDone:
- NESTED_RETURN
-
- .endp IsSlotBranch
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// GetTemplate
-//
-// Description:
-// Retrieves the instruction template for an instruction bundle
-//
-// Arguments:
-// in0 - Runtime address of bundle
-//
-// Returns:
-// in0 - Instruction template (5-bits, right-justified)
-//
-// Notes:
-// This procedure is a leaf routine
-//
- .proc GetTemplate
-
-GetTemplate:
-
- NESTED_SETUP (1,2+2,0,0)
-
- ld8 loc2=[in0], 0x8 // loc2 = first 8 bytes of branch bundle
- movl loc3=MASK_0_4;; // loc3 = template mask
- and loc2=loc2,loc3;; // loc2 = template, right justified
- mov in0=loc2;; // in0 = template, right justified
-
- NESTED_RETURN
-
- .endp GetTemplate
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// GetSlot
-//
-// Description:
-// Gets the instruction encoding for an instruction slot and bundle
-//
-// Arguments:
-// in0 - Runtime address of bundle
-// in1 - Instruction slot (either 0, 1, or 2)
-//
-// Returns:
-// in0 - Instruction encoding (41-bits, right justified)
-//
-// Notes:
-// This procedure is a leaf routine
-//
-// Slot0 - [in0 + 0x8] Bits 45-5
-// Slot1 - [in0 + 0x8] Bits 63-46 and [in0] Bits 22-0
-// Slot2 - [in0] Bits 63-23
-//
- .proc GetSlot
-
-GetSlot:
- NESTED_SETUP (2,2+3,0,0)
-
- ld8 loc2=[in0], 0x8;; // loc2 = first 8 bytes of branch bundle
- ld8 loc3=[in0];; // loc3 = second 8 bytes of branch bundle
- cmp.eq p14, p15 = 2, in1;; // check if slot 2 specified
- (p14) br.cond.sptk.few GetSlot2;; // get slot 2
- cmp.eq p14, p15 = 1, in1;; // check if slot 1 specified
- (p14) br.cond.sptk.few GetSlot1;; // get slot 1
-
-GetSlot0:
- extr.u in0=loc2, 5, 45 // in0 = extracted slot 0
- br.sptk.few GetSlotDone;;
-
-GetSlot1:
- extr.u in0=loc2, 46, 18 // in0 = bits 63-46 of loc2 right-justified
- extr.u loc4=loc3, 0, 23;; // loc4 = bits 22-0 of loc3 right-justified
- dep in0=loc4, in0, 18, 15;;
- shr.u loc4=loc4,15;;
- dep in0=loc4, in0, 33, 8;; // in0 = extracted slot 1
- br.sptk.few GetSlotDone;;
-
-GetSlot2:
- extr.u in0=loc3, 23, 41;; // in0 = extracted slot 2
-
-GetSlotDone:
- NESTED_RETURN
-
- .endp GetSlot
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// SetSlot
-//
-// Description:
-// Sets the instruction encoding for an instruction slot and bundle
-//
-// Arguments:
-// in0 - Runtime address of bundle
-// in1 - Instruction slot (either 0, 1, or 2)
-// in2 - Instruction encoding (41-bits, right justified)
-//
-// Returns:
-//
-// Notes:
-// This procedure is a leaf routine
-//
- .proc SetSlot
-
-SetSlot:
- NESTED_SETUP (3,2+3,0,0)
-
- ld8 loc2=[in0], 0x8;; // loc2 = first 8 bytes of bundle
- ld8 loc3=[in0];; // loc3 = second 8 bytes of bundle
- cmp.eq p14, p15 = 2, in1;; // check if slot 2 specified
- (p14) br.cond.sptk.few SetSlot2;; // set slot 2
- cmp.eq p14, p15 = 1, in1;; // check if slot 1 specified
- (p14) br.cond.sptk.few SetSlot1;; // set slot 1
-
-SetSlot0:
- dep loc2=0, loc2, 5, 41;; // remove old instruction from slot 0
- shl loc4=in2, 5;; // loc4 = new instruction ready to be inserted
- or loc2=loc2, loc4;; // loc2 = updated first 8 bytes of bundle
- add loc4=0x8,in0;; // loc4 = address to store first 8 bytes of bundle
- st8 [loc4]=loc2 // [loc4] = updated bundle
- br.sptk.few SetSlotDone;;
- ;;
-
-SetSlot1:
- dep loc2=0, loc2, 46, 18 // remove old instruction from slot 1
- dep loc3=0, loc3, 0, 23;;
- shl loc4=in2, 46;; // loc4 = partial instruction ready to be inserted
- or loc2=loc2, loc4;; // loc2 = updated first 8 bytes of bundle
- add loc4=0x8,in0;; // loc4 = address to store first 8 bytes of bundle
- st8 [loc4]=loc2;; // [loc4] = updated bundle
- shr.u loc4=in2, 18;; // loc4 = partial instruction ready to be inserted
- or loc3=loc3, loc4;; // loc3 = updated second 8 bytes of bundle
- st8 [in0]=loc3;; // [in0] = updated bundle
- br.sptk.few SetSlotDone;;
-
-SetSlot2:
- dep loc3=0, loc3, 23, 41;; // remove old instruction from slot 2
- shl loc4=in2, 23;; // loc4 = instruction ready to be inserted
- or loc3=loc3, loc4;; // loc3 = updated second 8 bytes of bundle
- st8 [in0]=loc3;; // [in0] = updated bundle
-
-SetSlotDone:
-
- NESTED_RETURN
- .endp SetSlot
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// GetIva
-//
-// Description:
-// C callable function to obtain the current value of IVA
-//
-// Returns:
-// Current value if IVA
-
- .globl GetIva
- .proc GetIva
-GetIva:
- mov r8=cr2;;
- br.ret.sptk.many b0
-
- .endp GetIva
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// ProgramInterruptFlags
-//
-// Description:
-// C callable function to enable/disable interrupts
-//
-// Returns:
-// Previous state of psr.ic
-//
- .globl ProgramInterruptFlags
- .proc ProgramInterruptFlags
-ProgramInterruptFlags:
- alloc loc0=1,2,0,0;;
- mov loc0=psr
- mov loc1=0x6000;;
- and r8=loc0, loc1 // obtain current psr.ic and psr.i state
- and in0=in0, loc1 // insure no extra bits set in input
- andcm loc0=loc0,loc1;; // clear original psr.i and psr.ic
- or loc0=loc0,in0;; // OR in new psr.ic value
- mov psr.l=loc0;; // write new psr
- srlz.d
- br.ret.sptk.many b0 // return
-
- .endp ProgramInterruptFlags
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// SpillContext
-//
-// Description:
-// Saves system context to context record.
-//
-// Arguments:
-// in0 = 512 byte aligned context record address
-// in1 = original B0
-// in2 = original ar.bsp
-// in3 = original ar.bspstore
-// in4 = original ar.rnat
-// in5 = original ar.pfs
-//
-// Notes:
-// loc0 - scratch
-// loc1 - scratch
-// loc2 - temporary application unat storage
-// loc3 - temporary exception handler unat storage
-
- .proc SpillContext
-
-SpillContext:
- alloc loc0=6,4,0,0;; // alloc 6 input, 4 locals, 0 outs
- mov loc2=ar.unat;; // save application context unat (spilled later)
- mov ar.unat=r0;; // set UNAT=0
- st8.spill [in0]=r0,8;;
- st8.spill [in0]=r1,8;; // save R1 - R31
- st8.spill [in0]=r2,8;;
- st8.spill [in0]=r3,8;;
- st8.spill [in0]=r4,8;;
- st8.spill [in0]=r5,8;;
- st8.spill [in0]=r6,8;;
- st8.spill [in0]=r7,8;;
- st8.spill [in0]=r8,8;;
- st8.spill [in0]=r9,8;;
- st8.spill [in0]=r10,8;;
- st8.spill [in0]=r11,8;;
- st8.spill [in0]=r12,8;;
- st8.spill [in0]=r13,8;;
- st8.spill [in0]=r14,8;;
- st8.spill [in0]=r15,8;;
- st8.spill [in0]=r16,8;;
- st8.spill [in0]=r17,8;;
- st8.spill [in0]=r18,8;;
- st8.spill [in0]=r19,8;;
- st8.spill [in0]=r20,8;;
- st8.spill [in0]=r21,8;;
- st8.spill [in0]=r22,8;;
- st8.spill [in0]=r23,8;;
- st8.spill [in0]=r24,8;;
- st8.spill [in0]=r25,8;;
- st8.spill [in0]=r26,8;;
- st8.spill [in0]=r27,8;;
- st8.spill [in0]=r28,8;;
- st8.spill [in0]=r29,8;;
- st8.spill [in0]=r30,8;;
- st8.spill [in0]=r31,8;;
- mov loc3=ar.unat;; // save debugger context unat (spilled later)
- stf.spill [in0]=f2,16;; // save f2 - f31
- stf.spill [in0]=f3,16;;
- stf.spill [in0]=f4,16;;
- stf.spill [in0]=f5,16;;
- stf.spill [in0]=f6,16;;
- stf.spill [in0]=f7,16;;
- stf.spill [in0]=f8,16;;
- stf.spill [in0]=f9,16;;
- stf.spill [in0]=f10,16;;
- stf.spill [in0]=f11,16;;
- stf.spill [in0]=f12,16;;
- stf.spill [in0]=f13,16;;
- stf.spill [in0]=f14,16;;
- stf.spill [in0]=f15,16;;
- stf.spill [in0]=f16,16;;
- stf.spill [in0]=f17,16;;
- stf.spill [in0]=f18,16;;
- stf.spill [in0]=f19,16;;
- stf.spill [in0]=f20,16;;
- stf.spill [in0]=f21,16;;
- stf.spill [in0]=f22,16;;
- stf.spill [in0]=f23,16;;
- stf.spill [in0]=f24,16;;
- stf.spill [in0]=f25,16;;
- stf.spill [in0]=f26,16;;
- stf.spill [in0]=f27,16;;
- stf.spill [in0]=f28,16;;
- stf.spill [in0]=f29,16;;
- stf.spill [in0]=f30,16;;
- stf.spill [in0]=f31,16;;
- mov loc0=pr;; // save predicates
- st8.spill [in0]=loc0,8;;
- st8.spill [in0]=in1,8;; // save b0 - b7... in1 already equals saved b0
- mov loc0=b1;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b2;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b3;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b4;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b5;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b6;;
- st8.spill [in0]=loc0,8;;
- mov loc0=b7;;
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.rsc;; // save ar.rsc
- st8.spill [in0]=loc0,8;;
- st8.spill [in0]=in2,8;; // save ar.bsp (in2)
- st8.spill [in0]=in3,8;; // save ar.bspstore (in3)
- st8.spill [in0]=in4,8;; // save ar.rnat (in4)
- mov loc0=ar.fcr;; // save ar.fcr (ar21 - IA32 floating-point control register)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.eflag;; // save ar.eflag (ar24)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.csd;; // save ar.csd (ar25 - ia32 CS descriptor)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.ssd;; // save ar.ssd (ar26 - ia32 ss descriptor)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.cflg;; // save ar.cflg (ar27 - ia32 cr0 and cr4)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.fsr;; // save ar.fsr (ar28 - ia32 floating-point status register)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.fir;; // save ar.fir (ar29 - ia32 floating-point instruction register)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.fdr;; // save ar.fdr (ar30 - ia32 floating-point data register)
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.ccv;; // save ar.ccv
- st8.spill [in0]=loc0,8;;
- st8.spill [in0]=loc2,8;; // save ar.unat (saved to loc2 earlier)
- mov loc0=ar.fpsr;; // save floating point status register
- st8.spill [in0]=loc0,8;;
- st8.spill [in0]=in5,8;; // save ar.pfs
- mov loc0=ar.lc;; // save ar.lc
- st8.spill [in0]=loc0,8;;
- mov loc0=ar.ec;; // save ar.ec
- st8.spill [in0]=loc0,8;;
-
- // save control registers
- mov loc0=cr.dcr;; // save dcr
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.itm;; // save itm
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.iva;; // save iva
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.pta;; // save pta
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.ipsr;; // save ipsr
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.isr;; // save isr
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.iip;; // save iip
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.ifa;; // save ifa
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.itir;; // save itir
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.iipa;; // save iipa
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.ifs;; // save ifs
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.iim;; // save iim
- st8.spill [in0]=loc0,8;;
- mov loc0=cr.iha;; // save iha
- st8.spill [in0]=loc0,8;;
-
- // save debug registers
- mov loc0=dbr[r0];; // save dbr0 - dbr7
- st8.spill [in0]=loc0,8;;
- movl loc1=1;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=2;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=3;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=4;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=5;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=6;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=7;;
- mov loc0=dbr[loc1];;
- st8.spill [in0]=loc0,8;;
- mov loc0=ibr[r0];; // save ibr0 - ibr7
- st8.spill [in0]=loc0,8;;
- movl loc1=1;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=2;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=3;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=4;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=5;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=6;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- movl loc1=7;;
- mov loc0=ibr[loc1];;
- st8.spill [in0]=loc0,8;;
- st8.spill [in0]=loc3;;
-
- br.ret.sptk.few b0
-
- .endp SpillContext
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// FillContext
-//
-// Description:
-// Restores register context from context record.
-//
-// Arguments:
-// in0 = address of last element 512 byte aligned context record address
-// in1 = modified B0
-// in2 = modified ar.bsp
-// in3 = modified ar.bspstore
-// in4 = modified ar.rnat
-// in5 = modified ar.pfs
-//
-// Notes:
-// loc0 - scratch
-// loc1 - scratch
-// loc2 - temporary application unat storage
-// loc3 - temporary exception handler unat storage
-
- .proc FillContext
-FillContext:
- alloc loc0=6,4,0,0;; // alloc 6 inputs, 4 locals, 0 outs
- ld8.fill loc3=[in0],-8;; // int_nat (nat bits for R1-31)
- movl loc1=7;; // ibr7
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=6;; // ibr6
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=5;; // ibr5
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=4;; // ibr4
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=3;; // ibr3
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=2;; // ibr2
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- movl loc1=1;; // ibr1
- ld8.fill loc0=[in0],-8;;
- mov ibr[loc1]=loc0;;
- ld8.fill loc0=[in0],-8;; // ibr0
- mov ibr[r0]=loc0;;
- movl loc1=7;; // dbr7
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=6;; // dbr6
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=5;; // dbr5
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=4;; // dbr4
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=3;; // dbr3
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=2;; // dbr2
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- movl loc1=1;; // dbr1
- ld8.fill loc0=[in0],-8;;
- mov dbr[loc1]=loc0;;
- ld8.fill loc0=[in0],-8;; // dbr0
- mov dbr[r0]=loc0;;
- ld8.fill loc0=[in0],-8;; // iha
- mov cr.iha=loc0;;
- ld8.fill loc0=[in0],-8;; // iim
- mov cr.iim=loc0;;
- ld8.fill loc0=[in0],-8;; // ifs
- mov cr.ifs=loc0;;
- ld8.fill loc0=[in0],-8;; // iipa
- mov cr.iipa=loc0;;
- ld8.fill loc0=[in0],-8;; // itir
- mov cr.itir=loc0;;
- ld8.fill loc0=[in0],-8;; // ifa
- mov cr.ifa=loc0;;
- ld8.fill loc0=[in0],-8;; // iip
- mov cr.iip=loc0;;
- ld8.fill loc0=[in0],-8;; // isr
- mov cr.isr=loc0;;
- ld8.fill loc0=[in0],-8;; // ipsr
- mov cr.ipsr=loc0;;
- ld8.fill loc0=[in0],-8;; // pta
- mov cr.pta=loc0;;
- ld8.fill loc0=[in0],-8;; // iva
- mov cr.iva=loc0;;
- ld8.fill loc0=[in0],-8;; // itm
- mov cr.itm=loc0;;
- ld8.fill loc0=[in0],-8;; // dcr
- mov cr.dcr=loc0;;
- ld8.fill loc0=[in0],-8;; // ec
- mov ar.ec=loc0;;
- ld8.fill loc0=[in0],-8;; // lc
- mov ar.lc=loc0;;
- ld8.fill in5=[in0],-8;; // ar.pfs
- ld8.fill loc0=[in0],-8;; // ar.fpsr
- mov ar.fpsr=loc0;;
- ld8.fill loc2=[in0],-8;; // ar.unat - restored later...
- ld8.fill loc0=[in0],-8;; // ar.ccv
- mov ar.ccv=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.fdr
- mov ar.fdr=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.fir
- mov ar.fir=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.fsr
- mov ar.fsr=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.cflg
- mov ar.cflg=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.ssd
- mov ar.ssd=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.csd
- mov ar.csd=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.eflag
- mov ar.eflag=loc0;;
- ld8.fill loc0=[in0],-8;; // ar.fcr
- mov ar.fcr=loc0;;
- ld8.fill in4=[in0],-8;; // ar.rnat
- ld8.fill in3=[in0],-8;; // bspstore
- ld8.fill in2=[in0],-8;; // bsp
- ld8.fill loc0=[in0],-8;; // ar.rsc
- mov ar.rsc=loc0;;
- ld8.fill loc0=[in0],-8;; // B7 - B0
- mov b7=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b6=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b5=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b4=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b3=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b2=loc0;;
- ld8.fill loc0=[in0],-8;;
- mov b1=loc0;;
- ld8.fill in1=[in0],-8;; // b0 is temporarily stored in in1
- ld8.fill loc0=[in0],-16;; // predicates
- mov pr=loc0;;
- ldf.fill f31=[in0],-16;;
- ldf.fill f30=[in0],-16;;
- ldf.fill f29=[in0],-16;;
- ldf.fill f28=[in0],-16;;
- ldf.fill f27=[in0],-16;;
- ldf.fill f26=[in0],-16;;
- ldf.fill f25=[in0],-16;;
- ldf.fill f24=[in0],-16;;
- ldf.fill f23=[in0],-16;;
- ldf.fill f22=[in0],-16;;
- ldf.fill f21=[in0],-16;;
- ldf.fill f20=[in0],-16;;
- ldf.fill f19=[in0],-16;;
- ldf.fill f18=[in0],-16;;
- ldf.fill f17=[in0],-16;;
- ldf.fill f16=[in0],-16;;
- ldf.fill f15=[in0],-16;;
- ldf.fill f14=[in0],-16;;
- ldf.fill f13=[in0],-16;;
- ldf.fill f12=[in0],-16;;
- ldf.fill f11=[in0],-16;;
- ldf.fill f10=[in0],-16;;
- ldf.fill f9=[in0],-16;;
- ldf.fill f8=[in0],-16;;
- ldf.fill f7=[in0],-16;;
- ldf.fill f6=[in0],-16;;
- ldf.fill f5=[in0],-16;;
- ldf.fill f4=[in0],-16;;
- ldf.fill f3=[in0],-16;;
- ldf.fill f2=[in0],-8;;
- mov ar.unat=loc3;; // restore unat (int_nat) before fill of general registers
- ld8.fill r31=[in0],-8;;
- ld8.fill r30=[in0],-8;;
- ld8.fill r29=[in0],-8;;
- ld8.fill r28=[in0],-8;;
- ld8.fill r27=[in0],-8;;
- ld8.fill r26=[in0],-8;;
- ld8.fill r25=[in0],-8;;
- ld8.fill r24=[in0],-8;;
- ld8.fill r23=[in0],-8;;
- ld8.fill r22=[in0],-8;;
- ld8.fill r21=[in0],-8;;
- ld8.fill r20=[in0],-8;;
- ld8.fill r19=[in0],-8;;
- ld8.fill r18=[in0],-8;;
- ld8.fill r17=[in0],-8;;
- ld8.fill r16=[in0],-8;;
- ld8.fill r15=[in0],-8;;
- ld8.fill r14=[in0],-8;;
- ld8.fill r13=[in0],-8;;
- ld8.fill r12=[in0],-8;;
- ld8.fill r11=[in0],-8;;
- ld8.fill r10=[in0],-8;;
- ld8.fill r9=[in0],-8;;
- ld8.fill r8=[in0],-8;;
- ld8.fill r7=[in0],-8;;
- ld8.fill r6=[in0],-8;;
- ld8.fill r5=[in0],-8;;
- ld8.fill r4=[in0],-8;;
- ld8.fill r3=[in0],-8;;
- ld8.fill r2=[in0],-8;;
- ld8.fill r1=[in0],-8;;
- mov ar.unat=loc2;; // restore application context unat
-
- br.ret.sptk.many b0
-
- .endp FillContext
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// HookHandler
-//
-// Description:
-// Common branch target from hooked IVT entries. Runs in interrupt context.
-// Responsible for saving and restoring context and calling common C
-// handler. Banked registers running on bank 0 at entry.
-//
-// Arguments:
-// All arguments are passed in banked registers:
-// B0_REG = Original B0
-// SCRATCH_REG1 = IVT entry index
-//
-// Returns:
-// Returns via rfi
-//
-// Notes:
-// loc0 - scratch
-// loc1 - scratch
-// loc2 - vector number / mask
-// loc3 - 16 byte aligned context record address
-// loc4 - temporary storage of last address in context record
-
-HookHandler:
- flushrs;; // Synch RSE with backing store
- mov SCRATCH_REG2=ar.bsp // save interrupted context bsp
- mov SCRATCH_REG3=ar.bspstore // save interrupted context bspstore
- mov SCRATCH_REG4=ar.rnat // save interrupted context rnat
- mov SCRATCH_REG6=cr.ifs;; // save IFS in case we need to chain...
- cover;; // creates new frame, moves old
- // CFM to IFS.
- alloc SCRATCH_REG5=0,5,6,0 // alloc 5 locals, 6 outs
- ;;
- // save banked registers to locals
- mov out1=B0_REG // out1 = Original B0
- mov out2=SCRATCH_REG2 // out2 = original ar.bsp
- mov out3=SCRATCH_REG3 // out3 = original ar.bspstore
- mov out4=SCRATCH_REG4 // out4 = original ar.rnat
- mov out5=SCRATCH_REG5 // out5 = original ar.pfs
- mov loc2=SCRATCH_REG1;; // loc2 = vector number + chain flag
- bsw.1;; // switch banked registers to bank 1
- srlz.d // explicit serialize required
- // now fill in context record structure
- movl loc3=IpfContextBuf // Insure context record is aligned
- add loc0=-0x200,r0;; // mask the lower 9 bits (align on 512 byte boundary)
- and loc3=loc3,loc0;;
- add loc3=0x200,loc3;; // move to next 512 byte boundary
- // loc3 now contains the 512 byte aligned context record
- // spill register context into context record
- mov out0=loc3;; // Context record base in out0
- // original B0 in out1 already
- // original ar.bsp in out2 already
- // original ar.bspstore in out3 already
- br.call.sptk.few b0=SpillContext;; // spill context
- mov loc4=out0 // save modified address
-
- // At this point, the context has been saved to the context record and we're
- // ready to call the C part of the handler...
-
- movl loc0=CommonHandler;; // obtain address of plabel
- ld8 loc1=[loc0];; // get entry point of CommonHandler
- mov b6=loc1;; // put it in a branch register
- adds loc1= 8, loc0;; // index to GP in plabel
- ld8 r1=[loc1];; // set up gp for C call
- mov loc1=0xfffff;; // mask off so only vector bits are present
- and out0=loc2,loc1;; // pass vector number (exception type)
- mov out1=loc3;; // pass context record address
- br.call.sptk.few b0=b6;; // call C handler
-
- // We've returned from the C call, so restore the context and either rfi
- // back to interrupted thread, or chain into the SAL if this was an external interrupt
- mov out0=loc4;; // pass address of last element in context record
- br.call.sptk.few b0=FillContext;; // Fill context
- mov b0=out1 // fill in b0
- mov ar.rnat=out4
- mov ar.pfs=out5
-
- // Loadrs is necessary because the debugger may have changed some values in
- // the backing store. The processor, however may not be aware that the
- // stacked registers need to be reloaded from the backing store. Therefore,
- // we explicitly cause the RSE to refresh the stacked register's contents
- // from the backing store.
- mov loc0=ar.rsc // get RSC value
- mov loc1=ar.rsc // save it so we can restore it
- movl loc3=0xffffffffc000ffff;; // create mask for clearing RSC.loadrs
- and loc0=loc0,loc3;; // create value for RSC with RSC.loadrs==0
- mov ar.rsc=loc0;; // modify RSC
- loadrs;; // invalidate register stack
- mov ar.rsc=loc1;; // restore original RSC
-
- bsw.0;; // switch banked registers back to bank 0
- srlz.d;; // explicit serialize required
- mov PR_REG=pr // save predicates - to be restored after chaining decision
- mov B0_REG=b0 // save b0 - required by chain code
- mov loc2=EXCPT_EXTERNAL_INTERRUPT;;
- cmp.eq p7,p0=SCRATCH_REG1,loc2;; // check to see if this is the timer tick
- (p7) br.cond.dpnt.few DO_CHAIN;;
-
-NO_CHAIN:
- mov pr=PR_REG;;
- rfi;; // we're outa here.
-
-DO_CHAIN:
- mov pr=PR_REG
- mov SCRATCH_REG1=cr.iva
- mov SCRATCH_REG2=PATCH_RETURN_OFFSET;;
- add SCRATCH_REG1=SCRATCH_REG1, SCRATCH_REG2;;
- mov b0=SCRATCH_REG1;;
- br.cond.sptk.few b0;;
-
-EndHookHandler:
-
-
-/////////////////////////////////////////////
-//
-// Name:
-// HookStub
-//
-// Description:
-// HookStub will be copied from it's loaded location into the IVT when
-// an IVT entry is hooked. The IVT entry does an indirect jump via B0 to
-// HookHandler, which in turn calls into the default C handler, which calls
-// the user-installed C handler. The calls return and HookHandler executes
-// an rfi.
-//
-// Notes:
-// Saves B0 to B0_REG
-// Saves IVT index to SCRATCH_REG1 (immediate value is fixed up when code is copied
-// to the IVT entry.
-
- .globl HookStub
- .proc HookStub
-HookStub:
-
- mov B0_REG=b0
- movl SCRATCH_REG1=HookHandler;;
- mov b0=SCRATCH_REG1;;
- mov SCRATCH_REG1=0;;// immediate value is fixed up during install of handler to be the vector number
- br.cond.sptk.few b0
-
- .endp HookStub
-
-
-/////////////////////////////////////////////
-// The following code is moved into IVT entry 14 (offset 3400) which is reserved
-// in the Itanium architecture. The patch code is located at the end of the
-// IVT entry.
-
-PatchCode:
- mov SCRATCH_REG0=psr
- mov SCRATCH_REG6=cr.ipsr
- mov PR_REG=pr
- mov B0_REG=b0;;
-
- // turn off any virtual translations
- movl SCRATCH_REG1 = ~( MASK(PSR_DT,1) | MASK(PSR_RT,1));;
- and SCRATCH_REG1 = SCRATCH_REG0, SCRATCH_REG1;;
- mov psr.l = SCRATCH_REG1;;
- srlz.d
- tbit.z p14, p15 = SCRATCH_REG6, PSR_IS;; // Check to see if we were
- // interrupted from IA32
- // context. If so, bail out
- // and chain to SAL immediately
- (p15) br.cond.sptk.few Stub_IVT_Passthru;;
- // we only want to take 1 out of 32 external interrupts to minimize the
- // impact to system performance. Check our interrupt count and bail
- // out if we're not up to 32
- movl SCRATCH_REG1=ExternalInterruptCount;;
- ld8 SCRATCH_REG2=[SCRATCH_REG1];; // ExternalInterruptCount
- tbit.z p14, p15 = SCRATCH_REG2, 5;; // bit 5 set?
- (p14) add SCRATCH_REG2=1, SCRATCH_REG2;; // No? Then increment
- // ExternalInterruptCount
- // and Chain to SAL
- // immediately
- (p14) st8 [SCRATCH_REG1]=SCRATCH_REG2;;
- (p14) br.cond.sptk.few Stub_IVT_Passthru;;
- (p15) mov SCRATCH_REG2=0;; // Yes? Then reset
- // ExternalInterruptCount
- // and branch to
- // HookHandler
- (p15) st8 [SCRATCH_REG1]=SCRATCH_REG2;;
- mov pr=PR_REG
- movl SCRATCH_REG1=HookHandler;; // SCRATCH_REG1 = entrypoint of HookHandler
- mov b0=SCRATCH_REG1;; // b0 = entrypoint of HookHandler
- mov SCRATCH_REG1=EXCPT_EXTERNAL_INTERRUPT;;
- br.sptk.few b0;; // branch to HookHandler
-
-PatchCodeRet:
- // fake-up an rfi to get RSE back to being coherent and insure psr has
- // original contents when interrupt occured, then exit to SAL
- // at this point:
- // cr.ifs has been modified by previous "cover"
- // SCRATCH_REG6 has original cr.ifs
-
- mov SCRATCH_REG5=cr.ipsr
- mov SCRATCH_REG4=cr.iip;;
- mov cr.ipsr=SCRATCH_REG0
- mov SCRATCH_REG1=ip;;
- add SCRATCH_REG1=0x30, SCRATCH_REG1;;
- mov cr.iip=SCRATCH_REG1;;
- rfi;; // rfi to next instruction
-
-Stub_RfiTarget:
- mov cr.ifs=SCRATCH_REG6
- mov cr.ipsr=SCRATCH_REG5
- mov cr.iip=SCRATCH_REG4;;
-
-Stub_IVT_Passthru:
- mov pr=PR_REG // pr = saved predicate registers
- mov b0=B0_REG;; // b0 = saved b0
-EndPatchCode:
-
-
-/////////////////////////////////////////////
-// The following bundle is moved into IVT entry 14 (offset 0x3400) which is reserved
-// in the Itanium architecture. This bundle will be the last bundle and will
-// be located at offset 0x37F0 in the IVT.
-
-FailsafeBranch:
-{
- .mib
- nop.m 0
- nop.i 0
- br.sptk.few -(FAILSAFE_BRANCH_OFFSET - EXT_INT_ENTRY_OFFSET - 0x10)
-}
-
-
-/////////////////////////////////////////////
-// The following bundle is moved into IVT entry 13 (offset 0x3000) which is the
-// external interrupt. It branches to the patch code.
-
-PatchCodeNewBun0:
-{
- .mib
- nop.m 0
- nop.i 0
- br.cond.sptk.few PATCH_BRANCH
-}
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/Ds64Macros.i b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/Ds64Macros.i deleted file mode 100644 index 6088ce70fd..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/Ds64Macros.i +++ /dev/null @@ -1,85 +0,0 @@ -//++
-// Copyright (c) 2006, Intel Corporation
-// All rights reserved. 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:
-//
-// Ds64Macros.i
-//
-// Abstract:
-//
-// This is set of macros used in calculating offsets in the IVT
-//
-// Revision History:
-//
-//--
-
-#define EXCPT_EXTERNAL_INTERRUPT 12
-#define MASK_0_4 0x000000000000001F // mask bits 0 through 4
-#define SLOT0 0
-#define SLOT1 1
-#define SLOT2 2
-
-#define PSR_DT 17
-#define PSR_TB 26
-#define PSR_RT 27
-#define PSR_IS 34
-#define PSR_IT 36
-#define PSR_IC 13
-#define PSR_I 14
-#define PSR_SS 40
-#define PSR_BN 44
-#define PSR_RI_MASK 0x60000000000
-
-#define EXCPT_EXTERNAL_INTERRUPT 12
-
-#define SCRATCH_REG0 r23
-#define SCRATCH_REG1 r24
-#define SCRATCH_REG2 r25
-#define SCRATCH_REG3 r26
-#define SCRATCH_REG4 r27
-#define SCRATCH_REG5 r28
-#define SCRATCH_REG6 r29
-#define PR_REG r30
-#define B0_REG r31
-
-
-// EXT_INT_OFFSET is the offset of the external interrupt entry in the IVT
-#define EXT_INT_ENTRY_OFFSET 0x03000
-
-// PATCH_ENTRY_OFFSET is the offset into the IVT of the entry that is coopted (stolen)
-// for use by the handler. The entire entry is restored when the handler is
-// unloaded.
-#define PATCH_ENTRY_OFFSET 0x03400
-
-// PATCH_BUNDLES is the number of bundles actually in the patch
-#define NUM_PATCH_BUNDLES ((EndPatchCode - PatchCode) / 0x10)
-
-// A hard coded branch back into the external interrupt IVT entry's second bundle
-// is put here, just in case the original bundle zero did not have a branch
-// This is the last bundle in the reserved IVT entry
-#define FAILSAFE_BRANCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - 0x10)
-
-// the original external interrupt IVT entry bundle zero is copied and relocated
-// here... also in the reserved IVT entry
-// This is the second-to-last bundle in the reserved IVT entry
-#define RELOCATED_EXT_INT (PATCH_ENTRY_OFFSET + 0x400 - 0x20)
-
-// The patch is actually stored at the end of IVT:PATCH_ENTRY. The PATCH_OFFSET
-// is the offset into IVT where the patch is actually stored. It is carefully
-// located so that when we run out of patch code, the next bundle is the
-// relocated bundle 0 from the original external interrupt handler
-#define PATCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCode ) - 0x20)
-
-#define PATCH_RETURN_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCodeRet ) - 0x20)
-
-// PATCH_BRANCH is used only in the new bundle that is placed at the beginning
-// of the external interrupt IVT entry.
-#define PATCH_BRANCH (PATCH_OFFSET - EXT_INT_ENTRY_OFFSET)
-
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/common.i b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/common.i deleted file mode 100644 index a7b571b308..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/common.i +++ /dev/null @@ -1,34 +0,0 @@ -//++
-// Copyright (c) 2006, Intel Corporation
-// All rights reserved. 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:
-//
-// Common.i
-//
-// Abstract:
-//
-// This is set of useful macros
-//
-// Revision History:
-//
-//--
-
-#define NESTED_SETUP(i,l,o,r) \
- alloc loc1=ar##.##pfs,i,l,o,r ; \
- mov loc0=b0 ;;
-
-
-#define NESTED_RETURN \
- mov b0=loc0 ; \
- mov ar##.##pfs=loc1 ;; \
- br##.##ret##.##dpnt b0 ;;
-
-#define MASK(bp,value) (value << bp)
-
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c deleted file mode 100644 index 33233d68e5..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c +++ /dev/null @@ -1,586 +0,0 @@ -/**@file
- IPF specific debug support functions
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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.
-
-**/
-
-//
-// private header files
-//
-#include "plDebugSupport.h"
-
-typedef struct {
- UINT64 low;
- UINT64 high;
-} BUNDLE;
-
-//
-// number of bundles to swap in ivt
-//
-#define NUM_BUNDLES_IN_STUB 5
-#define NUM_IVT_ENTRIES 64
-
-typedef struct {
- BUNDLE OrigBundles[NUM_BUNDLES_IN_STUB];
- VOID (*RegisteredCallback) ();
-} IVT_ENTRY;
-
-STATIC
-EFI_STATUS
-ManageIvtEntryTable (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- );
-
-STATIC
-VOID
-ChainExternalInterrupt (
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-UnchainExternalInterrupt (
- VOID
- );
-
-STATIC
-VOID
-GetHandlerEntryPoint (
- UINTN HandlerIndex,
- VOID **EntryPoint
- );
-
-IVT_ENTRY IvtEntryTable[NUM_IVT_ENTRIES];
-
-//
-// IPF context record is overallocated by 512 bytes to guarantee a 512 byte alignment exists
-// within the buffer and still have a large enough buffer to hold a whole IPF context record.
-//
-UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];
-
-//
-// The PatchSaveBuffer is used to store the original bundles from the IVT where it is patched
-// with the common handler.
-//
-UINT8 PatchSaveBuffer[0x400];
-UINTN ExternalInterruptCount;
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- IPF specific DebugSupport driver initialization. Must be public because it's
- referenced from DebugSupport.c
-
-Arguments:
-
-Returns:
-
- EFI_SUCCESS
-
---*/
-{
- SetMem (IvtEntryTable, sizeof (IvtEntryTable), 0);
- ExternalInterruptCount = 0;
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- Unload handler that is called during UnloadImage() - deallocates pool memory
- used by the driver. Must be public because it's referenced from DebugSuport.c
-
-Arguments:
- ImageHandle - Image handle
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- for (ExceptionType = 0; ExceptionType < NUM_IVT_ENTRIES; ExceptionType++) {
- ManageIvtEntryTable (ExceptionType, NULL, NULL);
- }
-
- return EFI_SUCCESS;
-}
-
-VOID
-CommonHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN EFI_SYSTEM_CONTEXT Context
- )
-/*++
-
-Routine Description:
- C routine that is called for all registered exceptions. This is the main
- exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
-
-Arguments:
- ExceptionType - Exception Type
- Context - System Context
-
-Returns:
-
- Nothing
-
---*/
-{
- static BOOLEAN InHandler = FALSE;
-
- DEBUG_CODE_BEGIN ();
- if (InHandler) {
- DEBUG ((EFI_D_INFO, "ERROR: Re-entered debugger!\n"
- " ExceptionType == %X\n"
- " Context == %X\n"
- " Context.SystemContextIpf->CrIip == %X\n"
- " Context.SystemContextIpf->CrIpsr == %X\n"
- " InHandler == %X\n",
- ExceptionType,
- Context,
- Context.SystemContextIpf->CrIip,
- Context.SystemContextIpf->CrIpsr,
- InHandler));
- }
- DEBUG_CODE_END ();
-
- ASSERT (!InHandler);
- InHandler = TRUE;
- if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- if (ExceptionType != EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- IvtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, Context.SystemContextIpf);
- } else {
- IvtEntryTable[ExceptionType].RegisteredCallback (Context.SystemContextIpf);
- }
- } else {
- ASSERT (0);
- }
-
- InHandler = FALSE;
-}
-
-STATIC
-VOID
-GetHandlerEntryPoint (
- UINTN HandlerIndex,
- VOID **EntryPoint
- )
-/*++
-
-Routine Description:
- Given an integer number, return the physical address of the entry point in the IFT
-
-Arguments:
- HandlerIndex - Index of the Handler
- EntryPoint - IFT Entrypoint
-
-Returns:
-
- Nothing
-
---*/
-{
- UINT8 *TempPtr;
-
- //
- // get base address of IVT
- //
- TempPtr = GetIva ();
-
- if (HandlerIndex < 20) {
- //
- // first 20 provide 64 bundles per vector
- //
- TempPtr += 0x400 * HandlerIndex;
- } else {
- //
- // the rest provide 16 bundles per vector
- //
- TempPtr += 0x5000 + 0x100 * (HandlerIndex - 20);
- }
-
- *EntryPoint = (VOID *) TempPtr;
-}
-
-STATIC
-EFI_STATUS
-ManageIvtEntryTable (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- This is the worker function that installs and removes all handlers
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- EFI_STATUS - any return other than EFI_SUCCESS indicates the request was not
- satisfied.
- EFI_ALEADY_STARTED - Ivt already hooked.
-
---*/
-{
- BUNDLE *B0Ptr;
- UINT64 InterruptFlags;
- EFI_TPL OldTpl;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
-
- if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- //
- // we've already installed to this vector
- //
- if (NewCallback != NULL) {
- //
- // if the input handler is non-null, error
- //
- return EFI_ALREADY_STARTED;
- } else {
- //
- // else remove the previously installed handler
- //
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
- if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- UnchainExternalInterrupt ();
- } else {
- UnhookEntry (ExceptionType);
- }
-
- ProgramInterruptFlags (InterruptFlags);
- gBS->RestoreTPL (OldTpl);
- //
- // re-init IvtEntryTable
- //
- SetMem (&IvtEntryTable[ExceptionType], sizeof (IVT_ENTRY), 0);
- }
- } else {
- //
- // no user handler installed on this vector
- //
- if (NewCallback != NULL) {
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
- if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- ChainExternalInterrupt (NewCallback);
- } else {
- HookEntry (ExceptionType, NewBundles, NewCallback);
- }
-
- ProgramInterruptFlags (InterruptFlags);
- gBS->RestoreTPL (OldTpl);
- }
- }
-
- return EFI_SUCCESS;
-}
-
-STATIC
-VOID
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Saves original IVT contents and inserts a few new bundles which are fixed up
- to store the ExceptionType and then call the common handler.
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- BUNDLE *FixupBundle;
- BUNDLE *B0Ptr;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
-
- //
- // copy original bundles from IVT to IvtEntryTable so we can restore them later
- //
- CopyMem (
- IvtEntryTable[ExceptionType].OrigBundles,
- B0Ptr,
- sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
- );
- //
- // insert new B0
- //
- CopyMem (B0Ptr, NewBundles, sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB);
-
- //
- // fixup IVT entry so it stores its index and whether or not to chain...
- //
- FixupBundle = B0Ptr + 2;
- FixupBundle->high |= ExceptionType << 36;
-
- InstructionCacheFlush (B0Ptr, 5);
- IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
-}
-
-STATIC
-VOID
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- Restores original IVT contents when unregistering a callback function
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- BUNDLE *B0Ptr;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
- //
- // restore original bundles in IVT
- //
- CopyMem (
- B0Ptr,
- IvtEntryTable[ExceptionType].OrigBundles,
- sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
- );
- InstructionCacheFlush (B0Ptr, 5);
-}
-
-STATIC
-VOID
-ChainExternalInterrupt (
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Sets up cache flush and calls assembly function to chain external interrupt.
- Records new callback in IvtEntryTable.
-
-Arguments:
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- VOID *Start;
-
- Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
- IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NewCallback;
- ChainHandler ();
- InstructionCacheFlush (Start, 0x400);
-}
-
-STATIC
-VOID
-UnchainExternalInterrupt (
- VOID
- )
-/*++
-
-Routine Description:
- Sets up cache flush and calls assembly function to restore external interrupt.
- Removes registered callback from IvtEntryTable.
-
-Arguments:
- Nothing
-
-Returns:
-
- Nothing
-
---*/
-{
- VOID *Start;
-
- Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
- UnchainHandler ();
- InstructionCacheFlush (Start, 0x400);
- IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;
-}
-
-//
-// The rest of the functions in this file are all member functions for the
-// DebugSupport protocol
-//
-
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function. Hard
- coded to support only 1 processor for now.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-{
- *MaxProcessorIndex = 0;
- return (EFI_SUCCESS);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK NewPeriodicCallback
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, NewPeriodicCallback);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- return ManageIvtEntryTable (
- ExceptionType,
- (BUNDLE *) ((EFI_PLABEL *) HookStub)->EntryPoint,
- NewCallback
- );
-}
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINTN Length
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function. Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
- EFI_SUCCESS
-
---*/
-{
- InstructionCacheFlush (Start, Length);
- return (EFI_SUCCESS);
-}
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.h b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.h deleted file mode 100644 index 71c9578e1e..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.h +++ /dev/null @@ -1,319 +0,0 @@ -/**@file
- IPF specific debugsupport types, macros, and definitions.
-
-Copyright (c) 2004 - 2006 Intel Corporation
-All rights reserved. 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 _PLDEBUG_SUPPORT_H
-#define _PLDEBUG_SUPPORT_H
-
-
-#define DISABLE_INTERRUPTS 0UL
-
-//
-// The remaining definitions comprise the protocol members.
-//
-#define EFI_ISA IsaIpf
-
-//
-// processor specific functions that must be public
-//
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- IPF specific DebugSupport driver initialization. Must be public because it's
- referenced from DebugSupport.c
-
-Arguments:
-
-Returns:
-
- EFI_SUCCESS
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- Unload handler that is called during UnloadImage() - deallocates pool memory
- used by the driver. Must be public because it's referenced from DebugSuport.c
-
-Arguments:
- ImageHandle - Image handle
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-;
-
-//
-// Assembly worker functions and data referenced from plDebugSupport.c
-//
-VOID *
-GetIva (
- VOID
- )
-/*++
-
-Routine Description:
-
- C callable function to obtain the current value of IVA
-
-Arguments:
-
- None
-
-Returns:
-
- Current value if IVA
-
---*/
-;
-
-VOID
-HookStub (
- VOID
- )
-/*++
-
-Routine Description:
-
- HookStub will be copied from it's loaded location into the IVT when
- an IVT entry is hooked.
-
-Arguments:
-
- None
-
-Returns:
-
- None
-
---*/
-;
-
-VOID
-ChainHandler (
- VOID
- )
-/*++
-
-Routine Description:
-
- Chains an interrupt handler
-
-Arguments:
-
- None
-
-Returns:
-
- None
-
---*/
-;
-
-VOID
-UnchainHandler (
- VOID
- )
-/*++
-
-Routine Description:
-
- Unchains an interrupt handler
-
-Arguments:
-
- None
-
-Returns:
-
- None
-
---*/
-;
-
-UINT64
-ProgramInterruptFlags (
- IN UINT64 NewInterruptState
- )
-/*++
-
-Routine Description:
-
- C callable function to enable/disable interrupts
-
-Arguments:
-
- NewInterruptState - New Interrupt State
-
-Returns:
-
- Previous state of psr.ic
-
---*/
-;
-
-VOID
-InstructionCacheFlush (
- IN VOID *StartAddress,
- IN UINTN SizeInBytes
- )
-/*++
-
-Routine Description:
-
- Flushes instruction cache for specified number of bytes
-
-Arguments:
-
- StartAddress - Cache Start Address
- SizeInBytes - Cache Size
-
-Returns:
-
- None
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function. Hard
- coded to support only 1 processor for now.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK PeriodicCallback
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewHandler,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINTN Length
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function. Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
- EFI_SUCCESS
-
---*/
-;
-
-VOID
-CommonHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN EFI_SYSTEM_CONTEXT Context
- )
-/*++
-
-Routine Description:
- C routine that is called for all registered exceptions. This is the main
- exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
-
-Arguments:
- ExceptionType - Exception Type
- Context - System Context
-
-Returns:
-
- Nothing
-
---*/
-;
-
-#endif
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.S b/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.S deleted file mode 100644 index f59a5b355c..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.S +++ /dev/null @@ -1,57 +0,0 @@ -#****************************************************************************** -#* -#* Copyright (c) 2007, Intel Corporation -#* All rights reserved. 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. -#* -#****************************************************************************** - -.globl _OrigVector -.globl _InterruptEntryStub -.globl _StubSize -.globl _CommonIdtEntry -.globl _FxStorSupport - -_AppEsp: .long 0x11111111 # ? -_DebugEsp: .long 0x22222222 # ? -_ExtraPush: .long 0x33333333 # ? -_ExceptData: .long 0x44444444 # ? -_Eflags: .long 0x55555555 # ? -_OrigVector: .long 0x66666666 # ? -_StubSize: .long _InterruptEntryStubEnd - _InterruptEntryStub - -.globl _FxStorSupport -_FxStorSupport: - ret - -.globl _GetIdtr -_GetIdtr: - ret - -.globl _WriteInterruptFlag -_WriteInterruptFlag: - ret - -.globl _Vect2Desc -_Vect2Desc: - ret - -.globl _InterruptEntryStub -_InterruptEntryStub: - ret - -.globl _InterruptEntryStubEnd -_InterruptEntryStubEnd: - ret - -.globl _CommonIdtEntry -_CommonIdtEntry: - ret - -PhonyIretd: - iret diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.asm b/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.asm deleted file mode 100644 index 810de909a8..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/AsmFuncs.asm +++ /dev/null @@ -1,654 +0,0 @@ -;******************************************************************************
-;*
-;* Copyright (c) 2006, Intel Corporation
-;* All rights reserved. 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.
-;*
-;******************************************************************************
-
-EXCPT64_DIVIDE_ERROR EQU 0
-EXCPT64_DEBUG EQU 1
-EXCPT64_NMI EQU 2
-EXCPT64_BREAKPOINT EQU 3
-EXCPT64_OVERFLOW EQU 4
-EXCPT64_BOUND EQU 5
-EXCPT64_INVALID_OPCODE EQU 6
-EXCPT64_DOUBLE_FAULT EQU 8
-EXCPT64_INVALID_TSS EQU 10
-EXCPT64_SEG_NOT_PRESENT EQU 11
-EXCPT64_STACK_FAULT EQU 12
-EXCPT64_GP_FAULT EQU 13
-EXCPT64_PAGE_FAULT EQU 14
-EXCPT64_FP_ERROR EQU 16
-EXCPT64_ALIGNMENT_CHECK EQU 17
-EXCPT64_MACHINE_CHECK EQU 18
-EXCPT64_SIMD EQU 19
-
-FXSTOR_FLAG EQU 01000000h ; bit cpuid 24 of feature flags
-
-;; The FXSTOR and FXRSTOR commands are used for saving and restoring the x87,
-;; MMX, SSE, SSE2, etc registers. The initialization of the debugsupport driver
-;; MUST check the CPUID feature flags to see that these instructions are available
-;; and fail to init if they are not.
-
-;; fxstor [rdi]
-FXSTOR_RDI MACRO
- db 0fh, 0aeh, 00000111y ; mod = 00, reg/op = 000, r/m = 111 = [rdi]
-ENDM
-
-;; fxrstor [rsi]
-FXRSTOR_RSI MACRO
- db 0fh, 0aeh, 00001110y ; mod = 00, reg/op = 001, r/m = 110 = [rsi]
-ENDM
-
-data SEGMENT
-
-public OrigVector, InterruptEntryStub, StubSize, CommonIdtEntry, FxStorSupport
-
-StubSize dd InterruptEntryStubEnd - InterruptEntryStub
-AppRsp dq 1111111111111111h ; ?
-DebugRsp dq 2222222222222222h ; ?
-ExtraPush dq 3333333333333333h ; ?
-ExceptData dq 4444444444444444h ; ?
-Rflags dq 5555555555555555h ; ?
-OrigVector dq 6666666666666666h ; ?
-
-;; The declarations below define the memory region that will be used for the debug stack.
-;; The context record will be built by pushing register values onto this stack.
-;; It is imparitive that alignment be carefully managed, since the FXSTOR and
-;; FXRSTOR instructions will GP fault if their memory operand is not 16 byte aligned.
-;;
-;; The stub will switch stacks from the application stack to the debuger stack
-;; and pushes the exception number.
-;;
-;; Then we building the context record on the stack. Since the stack grows down,
-;; we push the fields of the context record from the back to the front. There
-;; are 336 bytes of stack used prior allocating the 512 bytes of stack to be
-;; used as the memory buffer for the fxstor instruction. Therefore address of
-;; the buffer used for the FXSTOR instruction is &Eax - 336 - 512, which
-;; must be 16 byte aligned.
-;;
-;; We carefully locate the stack to make this happen.
-;;
-;; For reference, the context structure looks like this:
-;; struct {
-;; UINT64 ExceptionData;
-;; FX_SAVE_STATE_X64 FxSaveState; // 512 bytes, must be 16 byte aligned
-;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
-;; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
-;; UINT64 RFlags;
-;; UINT64 Ldtr, Tr;
-;; UINT64 Gdtr[2], Idtr[2];
-;; UINT64 Rip;
-;; UINT64 Gs, Fs, Es, Ds, Cs, Ss;
-;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
-;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
-;; } SYSTEM_CONTEXT_X64; // 64 bit system context record
-
-align 16
-DebugStackEnd db "DbgStkEnd >>>>>>" ;; 16 byte long string - must be 16 bytes to preserve alignment
- dd 1ffch dup (000000000h) ;; 32K should be enough stack
- ;; This allocation is coocked to insure
- ;; that the the buffer for the FXSTORE instruction
- ;; will be 16 byte aligned also.
- ;;
-ExceptionNumber dq ? ;; first entry will be the vector number pushed by the stub
-
-DebugStackBegin db "<<<< DbgStkBegin" ;; initial debug ESP == DebugStackBegin, set in stub
-
-data ENDS
-
-text SEGMENT
-
-externdef InterruptDistrubutionHub:near
-
-;------------------------------------------------------------------------------
-; VOID
-; EfiWbinvd (
-; VOID
-; )
-;
-; Abstract: Writeback and invalidate cache
-;
-EfiWbinvd PROC PUBLIC
- wbinvd
- ret
-EfiWbinvd ENDP
-
-;------------------------------------------------------------------------------
-; BOOLEAN
-; FxStorSupport (
-; void
-; )
-;
-; Abstract: Returns TRUE if FxStor instructions are supported
-;
-FxStorSupport PROC PUBLIC
-
-;
-; cpuid corrupts rbx which must be preserved per the C calling convention
-;
- push rbx
- mov rax, 1
- cpuid
- mov eax, edx
- and rax, FXSTOR_FLAG
- shr rax, 24
- pop rbx
- ret
-FxStorSupport ENDP
-
-
-;------------------------------------------------------------------------------
-; DESCRIPTOR *
-; GetIdtr (
-; void
-; )
-;
-; Abstract: Returns physical address of IDTR
-;
-GetIdtr PROC PUBLIC
- push rbp
- mov rbp, rsp
-
- sidt QWORD PTR [rbp - 0ah]
- mov rax, QWORD PTR [rbp - 8h]
-
- mov rsp, rbp
- pop rbp
- ret
-GetIdtr ENDP
-
-
-;------------------------------------------------------------------------------
-; BOOLEAN
-; WriteInterruptFlag (
-; BOOLEAN NewState // rcx
-; )
-;
-; Abstract: Programs interrupt flag to the requested state and returns previous
-; state.
-;
-WriteInterruptFlag PROC PUBLIC
-
- pushfq
- pop rax
- and rax, 200h
- shr rax, 9
- cmp rcx, 0
- jnz EnableIF
- cli
- ret
-EnableIF:
- sti
- ret
-
-WriteInterruptFlag ENDP
-
-
-
-;------------------------------------------------------------------------------
-; void
-; Vect2Desc (
-; DESCRIPTOR * DestDesc, // rcx
-; void (*Vector) (void) // rdx
-; )
-;
-; Abstract: Encodes an IDT descriptor with the given physical address
-;
-Vect2Desc PROC PUBLIC
-
- mov rax, rdx
- mov word ptr [rcx], ax ; write bits 15..0 of offset
- mov dx, cs
- mov word ptr [rcx+2], dx ; SYS_CODE_SEL from GDT
- mov word ptr [rcx+4], 0e00h OR 8000h ; type = 386 interrupt gate, present
- shr rax, 16
- mov word ptr [rcx+6], ax ; write bits 31..16 of offset
- shr rax, 16
- mov dword ptr [rcx+8], eax ; write bits 63..32 of offset
-
- ret
-
-Vect2Desc ENDP
-
-
-
-;------------------------------------------------------------------------------
-; InterruptEntryStub
-;
-; Abstract: This code is not a function, but is a small piece of code that is
-; copied and fixed up once for each IDT entry that is hooked.
-;
-InterruptEntryStub::
- push 0 ; push vector number - will be modified before installed
- db 0e9h ; jump rel32
- dd 0 ; fixed up to relative address of CommonIdtEntry
-InterruptEntryStubEnd:
-
-
-
-;------------------------------------------------------------------------------
-; CommonIdtEntry
-;
-; Abstract: This code is not a function, but is the common part for all IDT
-; vectors.
-;
-CommonIdtEntry::
-;;
-;; At this point, the stub has saved the current application stack esp into AppRsp
-;; and switched stacks to the debug stack, where it pushed the vector number
-;;
-;; The application stack looks like this:
-;;
-;; ...
-;; (last application stack entry)
-;; [16 bytes alignment, do not care it]
-;; SS from interrupted task
-;; RSP from interrupted task
-;; rflags from interrupted task
-;; CS from interrupted task
-;; RIP from interrupted task
-;; Error code <-------------------- Only present for some exeption types
-;;
-;; Vector Number <----------------- pushed in our IDT Entry
-;;
-
-
-;; The stub switched us to the debug stack and pushed the interrupt number.
-;;
-;; Next, construct the context record. It will be build on the debug stack by
-;; pushing the registers in the correct order so as to create the context structure
-;; on the debug stack. The context record must be built from the end back to the
-;; beginning because the stack grows down...
-;
-;; For reference, the context record looks like this:
-;;
-;; typedef
-;; struct {
-;; UINT64 ExceptionData;
-;; FX_SAVE_STATE_X64 FxSaveState;
-;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
-;; UINT64 Cr0, Cr2, Cr3, Cr4, Cr8;
-;; UINT64 RFlags;
-;; UINT64 Ldtr, Tr;
-;; UINT64 Gdtr[2], Idtr[2];
-;; UINT64 Rip;
-;; UINT64 Gs, Fs, Es, Ds, Cs, Ss;
-;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
-;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
-;; } SYSTEM_CONTEXT_X64; // 64 bit system context record
-
-;; NOTE: we save rsp here to prevent compiler put rip reference cause error AppRsp
- push rax
- mov rax, qword ptr [rsp][8] ; save vector number
- mov ExceptionNumber, rax ; save vector number
- pop rax
- add rsp, 8 ; pop vector number
- mov AppRsp, rsp ; save stack top
- mov rsp, offset DebugStackBegin ; switch to debugger stack
- sub rsp, 8 ; leave space for vector number
-
-;; 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 rcx
- push rdx
- push rbx
- push rsp
- push rbp
- push rsi
- push rdi
-
-;; Save interrupt state rflags register...
- pushfq
- pop rax
- mov qword ptr Rflags, rax
-
-;; We need to determine if any extra data was pushed by the exception, and if so, save it
-;; To do this, we check the exception number pushed by the stub, and cache the
-;; result in a variable since we'll need this again.
- cmp ExceptionNumber, EXCPT64_DOUBLE_FAULT
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_INVALID_TSS
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_SEG_NOT_PRESENT
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_STACK_FAULT
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_GP_FAULT
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_PAGE_FAULT
- jz ExtraPushOne
- cmp ExceptionNumber, EXCPT64_ALIGNMENT_CHECK
- jz ExtraPushOne
- mov ExtraPush, 0
- mov ExceptData, 0
- jmp ExtraPushDone
-ExtraPushOne:
- mov ExtraPush, 1
-
-;; If there's some extra data, save it also, and modify the saved AppRsp to effectively
-;; pop this value off the application's stack.
- mov rax, AppRsp
- mov rbx, [rax]
- mov ExceptData, rbx
- add rax, 8
- mov AppRsp, rax
-
-ExtraPushDone:
-
-;; The "push" above pushed the debug stack rsp. Since what we're actually doing
-;; is building the context record on the debug stack, we need to save the pushed
-;; debug RSP, and replace it with the application's last stack entry...
- mov rax, [rsp + 24]
- mov DebugRsp, rax
- mov rax, AppRsp
- add rax, 40
- ; application stack has ss, rsp, rflags, cs, & rip, so
- ; last actual application stack entry is
- ; 40 bytes into the application stack.
- mov [rsp + 24], rax
-
-;; continue building context record
-;; UINT64 Gs, Fs, Es, Ds, Cs, Ss; insure high 16 bits of each is zero
- mov rax, ss
- push rax
-
- ; CS from application is one entry back in application stack
- mov rax, AppRsp
- movzx rax, word ptr [rax + 8]
- push rax
-
- mov rax, ds
- push rax
- mov rax, es
- push rax
- mov rax, fs
- push rax
- mov rax, gs
- push rax
-
-;; UINT64 Rip;
- ; Rip from application is on top of application stack
- mov rax, AppRsp
- push qword ptr [rax]
-
-;; UINT64 Gdtr[2], Idtr[2];
- push 0
- push 0
- sidt fword ptr [rsp]
- push 0
- push 0
- sgdt fword ptr [rsp]
-
-;; UINT64 Ldtr, Tr;
- xor rax, rax
- str ax
- push rax
- sldt ax
- push rax
-
-;; UINT64 RFlags;
-;; Rflags from application is two entries back in application stack
- mov rax, AppRsp
- push qword ptr [rax + 16]
-
-;; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
-;; insure FXSAVE/FXRSTOR is enabled in CR4...
-;; ... while we're at it, make sure DE is also enabled...
- 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
- push 0
- mov rax, cr0
- push rax
-
-;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- mov rax, dr7
- push rax
-;; clear Dr7 while executing debugger itself
- xor rax, rax
- mov dr7, rax
-
- mov rax, dr6
- push rax
-;; insure all status bits in dr6 are clear...
- xor rax, rax
- mov dr6, 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
- ; IMPORTANT!! The debug stack has been carefully constructed to
- ; insure that rsp and rdi are 16 byte aligned when we get here.
- ; They MUST be. If they are not, a GP fault will occur.
- FXSTOR_RDI
-
-;; UINT64 ExceptionData;
- mov rax, ExceptData
- push rax
-
-; call to C code which will in turn call registered handler
-; pass in the vector number
- mov rdx, rsp
- mov rcx, ExceptionNumber
- sub rsp, 40
- call InterruptDistrubutionHub
- add rsp, 40
-
-; restore context...
-;; UINT64 ExceptionData;
- add rsp, 8
-
-;; FX_SAVE_STATE_X64 FxSaveState;
- mov rsi, rsp
- FXRSTOR_RSI
- add rsp, 512
-
-;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- pop rax
- mov dr0, rax
- pop rax
- mov dr1, rax
- pop rax
- mov dr2, rax
- pop rax
- mov dr3, rax
-;; skip restore of dr6. We cleared dr6 during the context save.
- add rsp, 8
- pop rax
- mov dr7, rax
-
-;; UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8;
- pop rax
- mov cr0, rax
- add rsp, 8
- pop rax
- mov cr2, rax
- pop rax
- mov cr3, rax
- pop rax
- mov cr4, rax
- pop rax
- mov cr8, rax
-
-;; UINT64 RFlags;
- mov rax, AppRsp
- pop qword ptr [rax + 16]
-
-;; 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 [rax]
-
-;; UINT64 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 rax
- ; mov gs, rax
- pop rax
- ; mov fs, rax
- pop rax
- mov es, rax
- pop rax
- mov ds, rax
- mov rax, AppRsp
- pop qword ptr [rax + 8]
- pop rax
- mov ss, rax
-
-;; The next stuff to restore is the general purpose registers that were pushed
-;; using the "push" instruction.
-;;
-;; The value of RSP as stored in the context record is the application RSP
-;; including the 5 entries on the application stack caused by the exception
-;; itself. It may have been modified by the debug agent, so we need to
-;; determine if we need to relocate the application stack.
-
- mov rbx, [rsp + 24] ; move the potentially modified AppRsp into rbx
- mov rax, AppRsp
- add rax, 40
- cmp rbx, rax
- je NoAppStackMove
-
- mov rax, AppRsp
- mov rcx, [rax] ; RIP
- mov [rbx], rcx
-
- mov rcx, [rax + 8] ; CS
- mov [rbx + 8], rcx
-
- mov rcx, [rax + 16] ; RFLAGS
- mov [rbx + 16], rcx
-
- mov rcx, [rax + 24] ; RSP
- mov [rbx + 24], rcx
-
- mov rcx, [rax + 32] ; SS
- mov [rbx + 32], rcx
-
- mov rax, rbx ; modify the saved AppRsp to the new AppRsp
- mov AppRsp, rax
-NoAppStackMove:
- mov rax, DebugRsp ; restore the DebugRsp on the debug stack
- ; so our "pop" will not cause a stack switch
- mov [rsp + 24], rax
-
- cmp ExceptionNumber, 068h
- jne NoChain
-
-Chain:
-
-;; Restore rflags so when we chain, the flags will be exactly as if we were never here.
-;; We gin up the stack to do an iretq so we can get ALL the flags.
- mov rax, AppRsp
- mov rbx, [rax + 40]
- push rbx
- mov rax, ss
- push rax
- mov rax, rsp
- add rax, 16
- push rax
- mov rax, AppRsp
- mov rbx, [rax + 16]
- and rbx, NOT 300h ; special handling for IF and TF
- push rbx
- mov rax, cs
- push rax
- mov rax, offset PhonyIretq
- push rax
- iretq
-PhonyIretq:
-
-;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
-;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
- pop rdi
- pop rsi
- pop rbp
- pop 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
-
-;; Switch back to application stack
- mov rsp, AppRsp
-
-;; Jump to original handler
- jmp OrigVector
-
-NoChain:
-;; UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax;
-;; UINT64 R8, R9, R10, R11, R12, R13, R14, R15;
- pop rdi
- pop rsi
- pop rbp
- pop 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
-
-;; Switch back to application stack
- mov rsp, AppRsp
-
-;; We're outa here...
- iretq
-text ENDS
-
-END
-
-
-
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.c b/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.c deleted file mode 100644 index 8b907ee6e1..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.c +++ /dev/null @@ -1,446 +0,0 @@ -/**@file
- X64 specific debug support functions
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. 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.
-
-**/
-
-//
-// private header files
-//
-#include "plDebugSupport.h"
-
-//
-// This the global main table to keep track of the interrupts
-//
-IDT_ENTRY *IdtEntryTable = NULL;
-DESCRIPTOR NullDesc = {0, 0};
-
-STATIC
-EFI_STATUS
-CreateEntryStub (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- OUT VOID **Stub
- )
-/*++
-
-Routine Description: Allocate pool for a new IDT entry stub. Copy the generic
- stub into the new buffer and fixup the vector number and jump target address.
-
-Arguments:
- ExceptionType - This is the exception type that the new stub will be created
- for.
- Stub - On successful exit, *Stub contains the newly allocated entry stub.
-Returns:
- Typically EFI_SUCCESS
- other possibilities are passed through from AllocatePool
-
---*/
-{
- UINT8 *StubCopy;
-
- StubCopy = *Stub;
-
- //
- // Fixup the stub code for this vector
- //
-
- // The stub code looks like this:
- //
- // 00000000 6A 00 push 0 ; push vector number - will be modified before installed
- // 00000002 E9 db 0e9h ; jump rel32
- // 00000003 00000000 dd 0 ; fixed up to relative address of CommonIdtEntry
- //
-
- //
- // poke in the exception type so the second push pushes the exception type
- //
- StubCopy[0x1] = (UINT8) ExceptionType;
-
- //
- // fixup the jump target to point to the common entry
- //
- *(UINT32 *) &StubCopy[0x3] = (UINT32)((UINTN) CommonIdtEntry - (UINTN) &StubCopy[StubSize]);
-
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Creates a nes entry stub. Then saves the current IDT entry and replaces it
- with an interrupt gate for the new entry point. The IdtEntryTable is updated
- with the new registered function.
-
- This code executes in boot services context. The stub entry executes in interrupt
- context.
-
-Arguments:
- ExceptionType - specifies which vector to hook.
- NewCallback - a pointer to the new function to be registered.
-
-Returns:
- EFI_SUCCESS
- Other possibilities are passed through by CreateEntryStub
-
---*/
-{
- BOOLEAN OldIntFlagState;
- EFI_STATUS Status;
-
- Status = CreateEntryStub (ExceptionType, (VOID **) &IdtEntryTable[ExceptionType].StubEntry);
- if (Status == EFI_SUCCESS) {
- OldIntFlagState = WriteInterruptFlag (0);
- ReadIdt (ExceptionType, &(IdtEntryTable[ExceptionType].OrigDesc));
-
- ((UINT16 *) &IdtEntryTable[ExceptionType].OrigVector)[0] = ((UINT16 *) &IdtEntryTable[ExceptionType].OrigDesc.Low)[0];
- ((UINT16 *) &IdtEntryTable[ExceptionType].OrigVector)[1] = ((UINT16 *) &IdtEntryTable[ExceptionType].OrigDesc.Low)[3];
- ((UINT32 *) &IdtEntryTable[ExceptionType].OrigVector)[1] = ((UINT32 *) &IdtEntryTable[ExceptionType].OrigDesc.High)[0];
-
- Vect2Desc (&IdtEntryTable[ExceptionType].NewDesc, IdtEntryTable[ExceptionType].StubEntry);
- IdtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
- WriteIdt (ExceptionType, &(IdtEntryTable[ExceptionType].NewDesc));
- WriteInterruptFlag (OldIntFlagState);
- }
-
- return Status;
-}
-
-STATIC
-EFI_STATUS
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- Undoes HookEntry. This code executes in boot services context.
-
-Arguments:
- ExceptionType - specifies which entry to unhook
-
-Returns:
- EFI_SUCCESS
-
---*/
-{
- BOOLEAN OldIntFlagState;
-
- OldIntFlagState = WriteInterruptFlag (0);
- WriteIdt (ExceptionType, &(IdtEntryTable[ExceptionType].OrigDesc));
- WriteInterruptFlag (OldIntFlagState);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ManageIdtEntryTable (
- VOID (*NewCallback)(),
- EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is the main worker function that manages the state of the interrupt
- handlers. It both installs and uninstalls interrupt handlers based on the
- value of NewCallback. If NewCallback is NULL, then uninstall is indicated.
- If NewCallback is non-NULL, then install is indicated.
-
-Arguments:
- NewCallback - If non-NULL, NewCallback specifies the new handler to register.
- If NULL, specifies that the previously registered handler should
- be uninstalled.
- ExceptionType - Indicates which entry to manage
-
-Returns:
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- EFI_STATUS Status;
-
- Status = EFI_SUCCESS;
-
- if (CompareDescriptor (&IdtEntryTable[ExceptionType].NewDesc, &NullDesc)) {
- //
- // we've already installed to this vector
- //
- if (NewCallback != NULL) {
- //
- // if the input handler is non-null, error
- //
- Status = EFI_ALREADY_STARTED;
- } else {
- Status = UnhookEntry (ExceptionType);
- }
- } else {
- //
- // no user handler installed on this vector
- //
- if (NewCallback == NULL) {
- //
- // if the input handler is null, error
- //
- Status = EFI_INVALID_PARAMETER;
- } else {
- Status = HookEntry (ExceptionType, NewCallback);
- }
- }
-
- return Status;
-}
-
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-{
- *MaxProcessorIndex = 0;
- return (EFI_SUCCESS);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK PeriodicCallback
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- return ManageIdtEntryTable (PeriodicCallback, SYSTEM_TIMER_VECTOR);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
-
- This code executes in boot services context.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-{
- return ManageIdtEntryTable (NewCallback, ExceptionType);
-}
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
- Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-{
- AsmWbinvd ();
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- Initializes driver's handler registration database.
-
- This code executes in boot services context.
-
-Arguments:
- None
-
-Returns:
- EFI_SUCCESS
- EFI_UNSUPPORTED - if X64 processor does not support FXSTOR/FXRSTOR instructions,
- the context save will fail, so these processor's are not supported.
- EFI_OUT_OF_RESOURCES - not resource to finish initialization
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- if (!FxStorSupport ()) {
- return EFI_UNSUPPORTED;
- }
-
- IdtEntryTable = AllocateZeroPool (sizeof (IDT_ENTRY) * NUM_IDT_ENTRIES);
- if (IdtEntryTable == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- IdtEntryTable[ExceptionType].StubEntry = (DEBUG_PROC) (UINTN) AllocatePool (StubSize);
- if (IdtEntryTable[ExceptionType].StubEntry == NULL) {
- goto ErrorCleanup;
- }
-
- CopyMem ((VOID *)(UINTN)IdtEntryTable[ExceptionType].StubEntry, InterruptEntryStub, StubSize);
- }
- return EFI_SUCCESS;
-
-ErrorCleanup:
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- if (IdtEntryTable[ExceptionType].StubEntry != NULL) {
- FreePool ((VOID *)(UINTN)IdtEntryTable[ExceptionType].StubEntry);
- }
- }
- FreePool (IdtEntryTable);
-
- return EFI_OUT_OF_RESOURCES;
-}
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- This is the callback that is written to the LoadedImage protocol instance
- on the image handle. It uninstalls all registered handlers and frees all entry
- stub memory.
-
- This code executes in boot services context.
-
-Arguments:
- ImageHandle - The image handle of the unload handler
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- for (ExceptionType = 0; ExceptionType < NUM_IDT_ENTRIES; ExceptionType++) {
- ManageIdtEntryTable (NULL, ExceptionType);
- }
-
- FreePool (IdtEntryTable);
- return EFI_SUCCESS;
-}
-
-VOID
-InterruptDistrubutionHub (
- EFI_EXCEPTION_TYPE ExceptionType,
- EFI_SYSTEM_CONTEXT_IA32 *ContextRecord
- )
-/*++
-
-Routine Description: Common piece of code that invokes the registered handlers.
-
- This code executes in exception context so no efi calls are allowed.
-
-Arguments:
- ExceptionType - exception type
- ContextRecord - system context
-
-Returns:
-
- None
-
---*/
-{
- if (IdtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- if (ExceptionType != SYSTEM_TIMER_VECTOR) {
- IdtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, ContextRecord);
- } else {
- OrigVector = IdtEntryTable[ExceptionType].OrigVector;
- IdtEntryTable[ExceptionType].RegisteredCallback (ContextRecord);
- }
- }
-}
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.h b/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.h deleted file mode 100644 index 42c849ea41..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/x64/plDebugSupport.h +++ /dev/null @@ -1,322 +0,0 @@ -/**@file
- X64 specific debug support macros, typedefs and prototypes.
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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 _PLDEBUG_SUPPORT_H
-#define _PLDEBUG_SUPPORT_H
-
-#define NUM_IDT_ENTRIES 0x78
-#define SYSTEM_TIMER_VECTOR 0x68
-#define VECTOR_ENTRY_PAGES 1
-#define CopyDescriptor(Dest, Src) CopyMem ((Dest), (Src), sizeof (DESCRIPTOR))
-#define ZeroDescriptor(Dest) CopyDescriptor ((Dest), &NullDesc)
-#define ReadIdt(Vector, Dest) CopyDescriptor ((Dest), &((GetIdtr ())[(Vector)]))
-#define WriteIdt(Vector, Src) CopyDescriptor (&((GetIdtr ())[(Vector)]), (Src))
-#define CompareDescriptor(Desc1, Desc2) CompareMem ((Desc1), (Desc2), sizeof (DESCRIPTOR))
-#define EFI_ISA IsaX64
-#define FF_FXSR (1 << 24)
-
-typedef struct {
- UINT64 Low;
- UINT64 High;
-} DESCRIPTOR;
-
-typedef
-VOID
-(*DEBUG_PROC) (
- VOID
- )
-;
-
-typedef struct {
- DESCRIPTOR OrigDesc;
- DEBUG_PROC OrigVector;
- DESCRIPTOR NewDesc;
- DEBUG_PROC StubEntry;
- VOID (*RegisteredCallback) ();
-} IDT_ENTRY;
-
-extern EFI_SYSTEM_CONTEXT SystemContext;
-extern UINT8 InterruptEntryStub[];
-extern UINT32 StubSize;
-extern VOID (*OrigVector) (VOID);
-
-VOID
-CommonIdtEntry (
- VOID
- )
-/*++
-
-Routine Description:
-
- Generic IDT entry
-
-Arguments:
-
- None
-
-Returns:
-
- None
-
---*/
-;
-
-
-BOOLEAN
-FxStorSupport (
- VOID
- )
-/*++
-
-Routine Description:
-
- Check whether FXSTOR is supported
-
-Arguments:
-
- None
-
-Returns:
-
- TRUE - supported
- FALSE - not supported
-
---*/
-;
-
-DESCRIPTOR *
-GetIdtr (
- VOID
- )
-/*++
-
-Routine Description:
-
- Return the physical address of IDTR
-
-Arguments:
-
- None
-
-Returns:
-
- The physical address of IDTR
-
---*/
-;
-
-VOID
-Vect2Desc (
- DESCRIPTOR * DestDesc,
- VOID (*Vector) (VOID)
- )
-/*++
-
-Routine Description:
-
- Encodes an IDT descriptor with the given physical address
-
-Arguments:
-
- DestDesc - The IDT descriptor address
- Vector - The interrupt vector entry
-
-Returns:
-
- None
-
---*/
-;
-
-BOOLEAN
-WriteInterruptFlag (
- BOOLEAN NewState
- )
-/*++
-
-Routine Description:
-
- Programs interrupt flag to the requested state and returns previous
- state.
-
-Arguments:
-
- NewState - New interrupt status
-
-Returns:
-
- Old interrupt status
-
---*/
-;
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- Initializes driver's handler registration database.
-
- This code executes in boot services context.
-
-Arguments:
- None
-
-Returns:
- EFI_SUCCESS
- EFI_UNSUPPORTED - if X64 processor does not support FXSTOR/FXRSTOR instructions,
- the context save will fail, so these processor's are not supported.
- EFI_OUT_OF_RESOURCES - not resource to finish initialization
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- This is the callback that is written to the LoadedImage protocol instance
- on the image handle. It uninstalls all registered handlers and frees all entry
- stub memory.
-
- This code executes in boot services context.
-
-Arguments:
- ImageHandle - The image handle of the unload handler
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-;
-
-//
-// DebugSupport protocol member functions
-//
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK PeriodicCallback
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
-
- This code executes in boot services context.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_SUCCESS
- EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
- no handler registered for it
- EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
-
- Other possible return values are passed through from UnHookEntry and HookEntry.
-
---*/
-;
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
- This is a DebugSupport protocol member function.
- Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
-
- EFI_SUCCESS - always return success
-
---*/
-;
-
-#endif
|