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
		
			
				
	
	
		
			46 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			46 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  Copyright (c) 2014, 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 of the BSD License
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  which accompanies this distribution.  The 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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#ifndef _FSP_SWITCH_STACK_LIB_H_
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#define _FSP_SWITCH_STACK_LIB_H_
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/**
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  This funciton will switch the current stack to the previous saved stack.
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  Before calling the previous stack has to be set in  FSP_GLOBAL_DATA.CoreStack.
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                    EIP
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                    FLAGS  16 bit  FLAGS  16 bit
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                    EDI
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                    ESI
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                    EBP
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                    ESP
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                    EBX
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                    EDX
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                    ECX
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                    EAX
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                    DWORD     IDT base1
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  StackPointer:     DWORD     IDT base2
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  @return ReturnKey          After switching to the saved stack,
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                             this value will be saved in eax before returning.
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**/
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UINT32
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EFIAPI
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Pei2LoaderSwitchStack (
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  VOID
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  );
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#endif
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