diff options
| author | jyao1 <jyao1> | 2014-07-29 02:21:52 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-07-29 02:21:52 +0000 |
| commit | c8ec22a266cdd134ac99c3021003710130613a40 (patch) | |
| tree | 39331503cf2a18089c025d466d3dd8d3b31e36c3 /IntelFspPkg/Include/Library/FspSwitchStackLib.h | |
| parent | 0d807dae4adf222ee0c1b3abe504c9a271a46062 (diff) | |
| download | edk2-platforms-c8ec22a266cdd134ac99c3021003710130613a40.tar.xz | |
Add IntelFspPkg to support create FSP bin based on EDKII.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Ravi Rangarajan <ravi.p.rangarajan@intel.com>
Reviewed by: Maurice Ma <maurice.ma@intel.com>
Reviewed by: Jiewen Yao <jiewen.yao@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@15705 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFspPkg/Include/Library/FspSwitchStackLib.h')
| -rw-r--r-- | IntelFspPkg/Include/Library/FspSwitchStackLib.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/IntelFspPkg/Include/Library/FspSwitchStackLib.h b/IntelFspPkg/Include/Library/FspSwitchStackLib.h new file mode 100644 index 0000000000..e90b13e8da --- /dev/null +++ b/IntelFspPkg/Include/Library/FspSwitchStackLib.h @@ -0,0 +1,45 @@ +/** @file
+
+ 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.
+
+**/
+
+#ifndef _FSP_SWITCH_STACK_LIB_H_
+#define _FSP_SWITCH_STACK_LIB_H_
+
+/**
+
+ This funciton will switch the current stack to the previous saved stack.
+ Before calling the previous stack has to be set in FSP_GLOBAL_DATA.CoreStack.
+ EIP
+ FLAGS 16 bit FLAGS 16 bit
+ EDI
+ ESI
+ EBP
+ ESP
+ EBX
+ EDX
+ ECX
+ EAX
+ DWORD IDT base1
+ StackPointer: DWORD IDT base2
+
+ @return ReturnKey After switching to the saved stack,
+ this value will be saved in eax before returning.
+
+
+**/
+UINT32
+EFIAPI
+Pei2LoaderSwitchStack (
+ VOID
+ );
+
+#endif
|