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1. Introduced CPU Exception Handler Library to provide the CPU exception handlers and add one NULL library instance.

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2. Updated DXE Core, BootScriptExecutorDxe and CapsuleX64Pei to consume CPU Exception Library to setup the default CPU Exception handlers.

Signed-off-by: vanjeff
Reviewed-by: jyao1


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13097 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2012-03-15 05:20:41 +00:00
parent bf0f6c8321
commit 1e172d6bbf
13 changed files with 157 additions and 12 deletions
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34
MdeModulePkg/Universal/CapsulePei/X64/X64Entry.c
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@@ -1,7 +1,7 @@
/** @file
The X64 entrypoint is used to process capsule in long mode.
Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -13,8 +13,12 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/CpuExceptionHandlerLib.h>
#include "CommonHeader.h"
#define EXCEPTION_VECTOR_NUMBER 0x20
/**
The X64 entrypoint is used to process capsule in long mode then
return to 32-bit protected mode.
@@ -32,7 +36,28 @@ _ModuleEntryPoint (
SWITCH_64_TO_32_CONTEXT *ReturnContext
)
{
EFI_STATUS Status;
EFI_STATUS Status;
IA32_DESCRIPTOR Ia32Idtr;
IA32_DESCRIPTOR X64Idtr;
IA32_IDT_GATE_DESCRIPTOR IdtEntryTable[EXCEPTION_VECTOR_NUMBER];
//
// Save the IA32 IDT Descriptor
//
AsmReadIdtr ((IA32_DESCRIPTOR *) &Ia32Idtr);
//
// Setup X64 IDT table
//
ZeroMem (IdtEntryTable, sizeof (IA32_IDT_GATE_DESCRIPTOR) * EXCEPTION_VECTOR_NUMBER);
X64Idtr.Base = (UINTN) IdtEntryTable;
X64Idtr.Limit = (UINT16) (sizeof (IA32_IDT_GATE_DESCRIPTOR) * EXCEPTION_VECTOR_NUMBER - 1);
AsmWriteIdtr ((IA32_DESCRIPTOR *) &X64Idtr);
//
// Setup the default CPU exception handlers
//
SetupCpuExceptionHandlers ();
//
// Call CapsuleDataCoalesce to process capsule.
@@ -46,6 +71,11 @@ _ModuleEntryPoint (
ReturnContext->ReturnStatus = Status;
//
// Restore IA32 IDT table
//
AsmWriteIdtr ((IA32_DESCRIPTOR *) &Ia32Idtr);
//
// Finish to coalesce capsule, and return to 32-bit mode.
//