diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 16:16:34 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:45 +0800 |
| commit | 98978ffbf63ed054a7b69a2d9c21ce765d988018 (patch) | |
| tree | 7c75a67c7fe8133625cab086f487f0f7497b4756 /Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c | |
| parent | b47932475500fc4b72ceab745aefd590ad1d1e6a (diff) | |
| download | edk2-platforms-98978ffbf63ed054a7b69a2d9c21ce765d988018.tar.xz | |
IntelFsp2WrapperPkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c')
| -rw-r--r-- | Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c b/Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c new file mode 100644 index 0000000000..72b1762f4c --- /dev/null +++ b/Core/IntelFsp2WrapperPkg/Library/BaseFspWrapperApiLib/IA32/DispatchExecute.c @@ -0,0 +1,58 @@ +/** @file
+ Execute 32-bit code in Protected Mode.
+
+ Copyright (c) 2014 - 2016, 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 <FspEas.h>
+
+/**
+ FSP API functions.
+
+ @param[in] Param1 The first parameter to pass to 32bit code.
+ @param[in] Param2 The second parameter to pass to 32bit code.
+
+ @return EFI_STATUS.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *FSP_FUNCTION) (
+ IN VOID *Param1,
+ IN VOID *Param2
+ );
+
+/**
+ 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.
+ @param[in] Param2 The second parameter to pass to 32bit code.
+
+ @return EFI_STATUS.
+**/
+EFI_STATUS
+Execute32BitCode (
+ IN UINT64 Function,
+ IN UINT64 Param1,
+ IN UINT64 Param2
+ )
+{
+ FSP_FUNCTION EntryFunc;
+ EFI_STATUS Status;
+
+ EntryFunc = (FSP_FUNCTION) (UINTN) (Function);
+ Status = EntryFunc ((VOID *)(UINTN)Param1, (VOID *)(UINTN)Param2);
+
+ return Status;
+}
+
|