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authorjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2011-08-31 18:58:35 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2011-08-31 18:58:35 +0000
commitb96fef9f4d47e6fe257b1048467a261ca28dac66 (patch)
tree6db28b6853599cc2d43e1c5b2f8164c48b82da77
parent13d4af68f83c39993b90c0f4d251c4312a0ddc9a (diff)
downloadedk2-platforms-b96fef9f4d47e6fe257b1048467a261ca28dac66.tar.xz
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
-rw-r--r--EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.c73
-rw-r--r--EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf52
-rw-r--r--EdkCompatibilityPkg/EdkCompatibilityPkg.dsc2
3 files changed, 127 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.c b/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.c
new file mode 100644
index 0000000000..f20555d451
--- /dev/null
+++ b/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.c
@@ -0,0 +1,73 @@
+/** @file
+ Boot Script Helper SMM driver.
+
+ This driver is responsible to restoer BootScriptThunk from SMRAM to AcpiNvs for security considertion.
+
+Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+
+This program and the accompanying materials
+are licensed and made available under the terms and conditions
+of the BSD License which accompanies this distribution. The
+full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+#include <Library/BaseLib.h>
+#include <Library/PcdLib.h>
+#include <Library/DebugLib.h>
+#include <Library/LockBoxLib.h>
+
+#include <Guid/BootScriptThunkData.h>
+
+EFI_GUID mBootScriptThunkGuid = {
+ 0xa053f561, 0xf56b, 0x4140, {0x89, 0x1, 0xb4, 0xcb, 0x5d, 0x70, 0x92, 0x9e}
+};
+
+/**
+ Entry point function of the Boot Script Thunk Helper SMM driver.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+**/
+EFI_STATUS
+EFIAPI
+BootScriptThunkHelperMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ BOOT_SCRIPT_THUNK_DATA *BootScriptThunkData;
+ EFI_STATUS Status;
+
+ //
+ // Get BootScriptThunk variable
+ //
+ BootScriptThunkData = (BOOT_SCRIPT_THUNK_DATA *)(UINTN)PcdGet64(BootScriptThunkDataPtr);
+ ASSERT (BootScriptThunkData != NULL);
+ if (BootScriptThunkData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Save BootScriptThunk image
+ //
+ Status = SaveLockBox (
+ &mBootScriptThunkGuid,
+ (VOID *)(UINTN)BootScriptThunkData->BootScriptThunkBase,
+ (UINTN)BootScriptThunkData->BootScriptThunkLength
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = SetLockBoxAttributes (&mBootScriptThunkGuid, LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
diff --git a/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf b/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf
new file mode 100644
index 0000000000..f068d6fdb7
--- /dev/null
+++ b/EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf
@@ -0,0 +1,52 @@
+## @file
+# Component description file for Boot Script Thunk Helper SMM driver.
+#
+# Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions
+# of the BSD License which accompanies this distribution. The
+# full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = BootScriptThunkHelper
+ FILE_GUID = E633E57C-BBB1-4c6a-9F45-22C49378ADD0
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ PI_SPECIFICATION_VERSION = 0x0001000A
+ ENTRY_POINT = BootScriptThunkHelperMain
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ BootScriptThunkHelper.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ IntelFrameworkPkg/IntelFrameworkPkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ EdkCompatibilityPkg/EdkCompatibilityPkg.dec
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ BaseLib
+ DebugLib
+ PcdLib
+ LockBoxLib
+
+[Pcd]
+ gEfiEdkCompatibilityPkgTokenSpaceGuid.BootScriptThunkDataPtr
+
+[Depex]
+ gEfiS3SaveStateProtocolGuid AND gEfiBootScriptSaveProtocolGuid AND gEfiLockBoxProtocolGuid
diff --git a/EdkCompatibilityPkg/EdkCompatibilityPkg.dsc b/EdkCompatibilityPkg/EdkCompatibilityPkg.dsc
index 37fb69588d..9abf7338df 100644
--- a/EdkCompatibilityPkg/EdkCompatibilityPkg.dsc
+++ b/EdkCompatibilityPkg/EdkCompatibilityPkg.dsc
@@ -71,6 +71,7 @@ define GCC_MACRO = -DEFI_SPECIFICATION_VERSION=0x00020000 -DPI_S
DebugAgentLib|MdeModulePkg/Library/DebugAgentLibNull/DebugAgentLibNull.inf
LocalApicLib|UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.inf
DxeServicesLib|MdePkg/Library/DxeServicesLib/DxeServicesLib.inf
+ LockBoxLib|MdeModulePkg/Library/LockBoxNullLib/LockBoxNullLib.inf
[LibraryClasses.common.PEIM]
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
@@ -282,6 +283,7 @@ define GCC_MACRO = -DEFI_SPECIFICATION_VERSION=0x00020000 -DPI_S
EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/DxePerformanceLib.inf # Use IA32/X64 specific AsmReadTsc ().
EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/PeiPerformanceLib/PeiPerformanceLib.inf # Use IA32/X64 specific AsmReadTsc ().
EdkCompatibilityPkg/Compatibility/AcpiVariableHobOnSmramReserveHobThunk/AcpiVariableHobOnSmramReserveHobThunk.inf
+ EdkCompatibilityPkg/Compatibility/BootScriptThunkHelper/BootScriptThunkHelper.inf
EdkCompatibilityPkg/Compatibility/MpServicesOnFrameworkMpServicesThunk/MpServicesOnFrameworkMpServicesThunk.inf
EdkCompatibilityPkg/Compatibility/SmmBaseOnSmmBase2Thunk/SmmBaseOnSmmBase2Thunk.inf
EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.inf