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
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jyao1
jyao1
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## @file
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#
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# Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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#
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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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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = BaseFspSwitchStackLib
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FILE_GUID = 8A5EA987-27F9-4ad0-B07C-D61882BFF4FF
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = FspSwitchStackLib
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[Sources.IA32]
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FspSwitchStackLib.c
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[Sources.IA32]
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Ia32/Stack.asm | MSFT
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Ia32/Stack.s | GCC
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[Packages]
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MdePkg/MdePkg.dec
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IntelFspPkg/IntelFspPkg.dec
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[LibraryClasses]
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BaseLib
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IoLib
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[FixedPcd]
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gIntelFspPkgTokenSpaceGuid.PcdFspMaxPatchEntry
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gIntelFspPkgTokenSpaceGuid.PcdFspMaxPerfEntry
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/** @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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#include <Base.h>
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#include <Library/BaseLib.h>
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#include <Library/FspCommonLib.h>
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/**
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Switch the current stack to the previous saved stack.
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@param[in] NewStack The new stack to be switched.
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@return OldStack 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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SwapStack (
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IN UINT32 NewStack
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)
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{
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FSP_GLOBAL_DATA *FspData;
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UINT32 OldStack;
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FspData = GetFspGlobalDataPointer ();
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OldStack = FspData->CoreStack;
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FspData->CoreStack = NewStack;
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return OldStack;
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}
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65
IntelFspPkg/Library/BaseFspSwitchStackLib/Ia32/Stack.asm
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65
IntelFspPkg/Library/BaseFspSwitchStackLib/Ia32/Stack.asm
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;------------------------------------------------------------------------------
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;
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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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;
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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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; Abstract:
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;
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; Switch the stack from temporary memory to permenent memory.
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;
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;------------------------------------------------------------------------------
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.586p
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.model flat,C
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.code
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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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;------------------------------------------------------------------------------
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EXTERNDEF C MeasurePoint:PROC
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Pei2LoaderSwitchStack PROC C PUBLIC
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jmp Loader2PeiSwitchStack
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Pei2LoaderSwitchStack ENDP
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; Loader2PeiSwitchStack (
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; VOID
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; )
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;------------------------------------------------------------------------------
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EXTERNDEF C SwapStack:PROC
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Loader2PeiSwitchStack PROC C PUBLIC
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; Save current contexts
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push offset exit
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pushfd
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cli
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pushad
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sub esp, 8
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sidt fword ptr [esp]
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; Load new stack
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push esp
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call SwapStack
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mov esp, eax
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; Restore previous contexts
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lidt fword ptr [esp]
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add esp, 8
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popad
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popfd
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exit:
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ret
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Loader2PeiSwitchStack ENDP
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END
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64
IntelFspPkg/Library/BaseFspSwitchStackLib/Ia32/Stack.s
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64
IntelFspPkg/Library/BaseFspSwitchStackLib/Ia32/Stack.s
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#------------------------------------------------------------------------------
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#
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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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#
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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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# Abstract:
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#
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# Switch the stack from temporary memory to permenent memory.
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#
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)
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ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)
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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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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)
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ASM_PFX(Pei2LoaderSwitchStack):
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jmp ASM_PFX(Loader2PeiSwitchStack)
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#------------------------------------------------------------------------------
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# UINT32
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# EFIAPI
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# Loader2PeiSwitchStack (
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# )
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)
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ASM_PFX(Loader2PeiSwitchStack):
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#Save current contexts
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push $exit
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pushf
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pushf
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cli
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pusha
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push $0x0
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push $0x0
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sidt (%esp)
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# Load new stack
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push %esp
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call ASM_PFX(SwapStack)
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mov %eax,%esp
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# Restore previous contexts
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lidt (%esp)
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add $8,%esp
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popa
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popf
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popf
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exit:
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ret
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