mirror of https://github.com/acidanthera/audk.git
EdkCompatibilityPkg: Add BootScriptThunkHelper driver
Signed-off-by: jljusten Reviewed-by: rsun3 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12247 6f19259b-4bc3-4df7-8a09-765794883524
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jljusten
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/** @file
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Boot Script Helper SMM driver.
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This driver is responsible to restoer BootScriptThunk from SMRAM to AcpiNvs for security considertion.
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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of the BSD License which accompanies this distribution. The
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full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/BaseLib.h>
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#include <Library/PcdLib.h>
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#include <Library/DebugLib.h>
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#include <Library/LockBoxLib.h>
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#include <Guid/BootScriptThunkData.h>
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EFI_GUID mBootScriptThunkGuid = {
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0xa053f561, 0xf56b, 0x4140, {0x89, 0x1, 0xb4, 0xcb, 0x5d, 0x70, 0x92, 0x9e}
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};
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/**
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Entry point function of the Boot Script Thunk Helper SMM driver.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval other Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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BootScriptThunkHelperMain (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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BOOT_SCRIPT_THUNK_DATA *BootScriptThunkData;
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EFI_STATUS Status;
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//
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// Get BootScriptThunk variable
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//
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BootScriptThunkData = (BOOT_SCRIPT_THUNK_DATA *)(UINTN)PcdGet64(BootScriptThunkDataPtr);
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ASSERT (BootScriptThunkData != NULL);
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if (BootScriptThunkData == NULL) {
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return EFI_NOT_FOUND;
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}
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//
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// Save BootScriptThunk image
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//
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Status = SaveLockBox (
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&mBootScriptThunkGuid,
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(VOID *)(UINTN)BootScriptThunkData->BootScriptThunkBase,
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(UINTN)BootScriptThunkData->BootScriptThunkLength
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);
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ASSERT_EFI_ERROR (Status);
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Status = SetLockBoxAttributes (&mBootScriptThunkGuid, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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## @file
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# Component description file for Boot Script Thunk Helper SMM driver.
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#
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# Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions
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# of the BSD License which accompanies this distribution. The
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# full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = BootScriptThunkHelper
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FILE_GUID = E633E57C-BBB1-4c6a-9F45-22C49378ADD0
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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PI_SPECIFICATION_VERSION = 0x0001000A
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ENTRY_POINT = BootScriptThunkHelperMain
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64
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#
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[Sources]
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BootScriptThunkHelper.c
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[Packages]
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MdePkg/MdePkg.dec
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IntelFrameworkPkg/IntelFrameworkPkg.dec
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MdeModulePkg/MdeModulePkg.dec
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EdkCompatibilityPkg/EdkCompatibilityPkg.dec
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[LibraryClasses]
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UefiDriverEntryPoint
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BaseLib
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DebugLib
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PcdLib
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LockBoxLib
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[Pcd]
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gEfiEdkCompatibilityPkgTokenSpaceGuid.BootScriptThunkDataPtr
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[Depex]
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gEfiS3SaveStateProtocolGuid AND gEfiBootScriptSaveProtocolGuid AND gEfiLockBoxProtocolGuid
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@ -71,6 +71,7 @@ define GCC_MACRO = -DEFI_SPECIFICATION_VERSION=0x00020000 -DPI_S
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DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
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LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.inf
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DxeServicesLib|MdePkg/Library/DxeServicesLib/DxeServicesLib.inf
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LockBoxLib|MdeModulePkg/Library/LockBoxNullLib/LockBoxNullLib.inf
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[LibraryClasses.common.PEIM]
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MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
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@ -282,6 +283,7 @@ define GCC_MACRO = -DEFI_SPECIFICATION_VERSION=0x00020000 -DPI_S
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EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/DxePerformanceLib.inf # Use IA32/X64 specific AsmReadTsc ().
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EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/PeiPerformanceLib/PeiPerformanceLib.inf # Use IA32/X64 specific AsmReadTsc ().
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EdkCompatibilityPkg/Compatibility/AcpiVariableHobOnSmramReserveHobThunk/AcpiVariableHobOnSmramReserveHobThunk.inf
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EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf
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EdkCompatibilityPkg/Compatibility/MpServicesOnFrameworkMpServicesThunk/MpServicesOnFrameworkMpServicesThunk.inf
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EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.inf
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EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.inf
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