diff options
| author | jyao1 <jyao1> | 2014-07-24 06:52:43 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-07-24 06:52:43 +0000 |
| commit | a33a2f62218e6e49a25d63474b7fe423d8ee4b71 (patch) | |
| tree | ca8e4dd491a71f4a7e36fbc17c5e95276d555b43 /IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c | |
| parent | 34717ef034ed275a15683dafd29cb518af50fff0 (diff) | |
Add IntelFspWrapper to support boot EDKII on FSP bin.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Ravi Rangarajan <ravi.p.rangarajan@intel.com>
Reviewed by: Maurice Ma <maurice.ma@intel.com>
Reviewed by: Giri Mudusuru <giri.p.mudusuru@intel.com>
Reviewed by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15676 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c')
| -rw-r--r-- | IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c b/IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c new file mode 100644 index 0000000000..15d0a023b8 --- /dev/null +++ b/IntelFspWrapperPkg/Library/BaseFspApiLib/IA32/DispatchExecute.c @@ -0,0 +1,47 @@ +/** @file
+ Execute 32-bit code in Protected Mode.
+
+ Copyright (c) 2014, 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 <Uefi.h>
+#include <FspApi.h>
+
+typedef
+FSP_STATUS
+(FSPAPI *FSP_FUNCTION) (
+ IN VOID *Param1
+ );
+
+/**
+ Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to
+ long mode.
+
+ @param[in] Function The 32bit code entry to be executed.
+ @param[in] Param1 The first parameter to pass to 32bit code.
+
+ @return FSP_STATUS.
+**/
+FSP_STATUS
+Execute32BitCode (
+ IN UINT64 Function,
+ IN UINT64 Param1
+ )
+{
+ FSP_FUNCTION EntryFunc;
+ FSP_STATUS Status;
+
+ EntryFunc = (FSP_FUNCTION) (UINTN) (Function);
+ Status = EntryFunc ((VOID *)(UINTN)Param1);
+
+ return Status;
+}
+
|