cf1d454983
Add FSP2.0 support. This series of patch is to support FSP2.0 specification at https://firmware.intel.com/sites/default/files/FSP_EAS_v2.0_Draft%20External.pdf Some major updates include: 1) One FSP binary is separated to multiple components: FSP-T, FSP-M, FSP-S, and optional FSP-O. Each component has its own configuration data region. 2) All FSP-APIs use same UPD format - FSP_UPD_HEADER. 3) Add EnumInitPhaseEndOfFirmware notifyphase. 4) FSP1.1/FSP1.0 compatibility is NOT maintained. 5) We also add rename Fsp* to FspWrapper* in IntelFsp2WrapperPkg, to indicate that it is for FspWrapper only. IntelFspPkg and IntelFspWrapperPkg will be deprecated. The new Intel platform will follow FSP2.0 and use IntelFsp2Pkg and IntelFsp2WrapperPkg. The old platform can still use IntelFspPkg and IntelFspWrapperPkg for compatibility consideration. Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com> Cc: Maurice Ma <maurice.ma@intel.com> Cc: Ravi P Rangarajan <ravi.p.rangarajan@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com> Reviewed-by: Maurice Ma <maurice.ma@intel.com> Reviewed-by: Ravi P Rangarajan <ravi.p.rangarajan@intel.com>
78 lines
2.1 KiB
NASM
78 lines
2.1 KiB
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2014 - 2015, 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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xor eax, eax
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jmp FspSwitchStack
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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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Loader2PeiSwitchStack PROC C PUBLIC
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jmp FspSwitchStack
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Loader2PeiSwitchStack ENDP
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;------------------------------------------------------------------------------
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; UINT32
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; EFIAPI
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; FspSwitchStack (
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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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FspSwitchStack PROC C PUBLIC
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; Save current contexts
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push eax
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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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add esp, 4
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ret
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FspSwitchStack ENDP
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END
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