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audk/IntelFsp2Pkg/FspSecCore/Ia32/ReadEsp.nasm

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IntelFsp2Pkg: FSP can utilize bootloader stack REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1485 Current FSP utilizes pre-allocated temporary memory from boot loader for both heap and stack. To reduce overall temporary memory usage FSP may share the same stack with boot loader and only needs a smaller memory for heap, no separate memory required for stack. Setting PcdFspHeapSizePercentage to 0 to enable FSP sharing stack with boot loader, in this case boot loader stack has to be large enough for FSP to use. Default is 50 (half memory heap and half memory stack) for backward compatible with original model. Test: Verified on internal platform and booting successfully with both modes. Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2019-01-23 09:12:38 +01:00
;; @file
; Provide read ESP function
;
IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893 1.Added EFIAPI to FspNotifyPhasePeimEntryPoint, SwapStack and PEI_CORE_ENTRY. 2.Treat both MAX_ADDRESS and MAX_UINT32 as invalid address for FSP global data in FspApiCallingCheck(). 3.Changed AsmReadEsp to AsmReadStackPointer. 4.Changed the type of the return value of AsmReadStackPointer from UINT32 to UINTN. 5.Changed the type of TemporaryMemoryBase, PermenentMemoryBase and BootLoaderStack from UINT32 to UINTN. 6.Some type casting to pointers are UINT32. Changed them to UINTN to accommodate both IA32 and X64. 7.Corrected some typos. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Ashraf Ali S <ashraf.ali.s@intel.com> Signed-off-by: Ted Kuo <ted.kuo@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2022-04-15 10:37:36 +02:00
; Copyright (c) 2019 - 2022, Intel Corporation. All rights reserved.<BR>
IntelFsp2Pkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
2019-04-04 01:04:04 +02:00
; SPDX-License-Identifier: BSD-2-Clause-Patent
IntelFsp2Pkg: FSP can utilize bootloader stack REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1485 Current FSP utilizes pre-allocated temporary memory from boot loader for both heap and stack. To reduce overall temporary memory usage FSP may share the same stack with boot loader and only needs a smaller memory for heap, no separate memory required for stack. Setting PcdFspHeapSizePercentage to 0 to enable FSP sharing stack with boot loader, in this case boot loader stack has to be large enough for FSP to use. Default is 50 (half memory heap and half memory stack) for backward compatible with original model. Test: Verified on internal platform and booting successfully with both modes. Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2019-01-23 09:12:38 +01:00
;;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893 1.Added EFIAPI to FspNotifyPhasePeimEntryPoint, SwapStack and PEI_CORE_ENTRY. 2.Treat both MAX_ADDRESS and MAX_UINT32 as invalid address for FSP global data in FspApiCallingCheck(). 3.Changed AsmReadEsp to AsmReadStackPointer. 4.Changed the type of the return value of AsmReadStackPointer from UINT32 to UINTN. 5.Changed the type of TemporaryMemoryBase, PermenentMemoryBase and BootLoaderStack from UINT32 to UINTN. 6.Some type casting to pointers are UINT32. Changed them to UINTN to accommodate both IA32 and X64. 7.Corrected some typos. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Ashraf Ali S <ashraf.ali.s@intel.com> Signed-off-by: Ted Kuo <ted.kuo@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2022-04-15 10:37:36 +02:00
; UINTN
IntelFsp2Pkg: FSP can utilize bootloader stack REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1485 Current FSP utilizes pre-allocated temporary memory from boot loader for both heap and stack. To reduce overall temporary memory usage FSP may share the same stack with boot loader and only needs a smaller memory for heap, no separate memory required for stack. Setting PcdFspHeapSizePercentage to 0 to enable FSP sharing stack with boot loader, in this case boot loader stack has to be large enough for FSP to use. Default is 50 (half memory heap and half memory stack) for backward compatible with original model. Test: Verified on internal platform and booting successfully with both modes. Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2019-01-23 09:12:38 +01:00
; EFIAPI
IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893 1.Added EFIAPI to FspNotifyPhasePeimEntryPoint, SwapStack and PEI_CORE_ENTRY. 2.Treat both MAX_ADDRESS and MAX_UINT32 as invalid address for FSP global data in FspApiCallingCheck(). 3.Changed AsmReadEsp to AsmReadStackPointer. 4.Changed the type of the return value of AsmReadStackPointer from UINT32 to UINTN. 5.Changed the type of TemporaryMemoryBase, PermenentMemoryBase and BootLoaderStack from UINT32 to UINTN. 6.Some type casting to pointers are UINT32. Changed them to UINTN to accommodate both IA32 and X64. 7.Corrected some typos. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Ashraf Ali S <ashraf.ali.s@intel.com> Signed-off-by: Ted Kuo <ted.kuo@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2022-04-15 10:37:36 +02:00
; AsmReadStackPointer (
IntelFsp2Pkg: FSP can utilize bootloader stack REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1485 Current FSP utilizes pre-allocated temporary memory from boot loader for both heap and stack. To reduce overall temporary memory usage FSP may share the same stack with boot loader and only needs a smaller memory for heap, no separate memory required for stack. Setting PcdFspHeapSizePercentage to 0 to enable FSP sharing stack with boot loader, in this case boot loader stack has to be large enough for FSP to use. Default is 50 (half memory heap and half memory stack) for backward compatible with original model. Test: Verified on internal platform and booting successfully with both modes. Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2019-01-23 09:12:38 +01:00
; VOID
; );
;------------------------------------------------------------------------------
IntelFsp2Pkg: X64 compatible changes to support PEI in 64bit REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893 1.Added EFIAPI to FspNotifyPhasePeimEntryPoint, SwapStack and PEI_CORE_ENTRY. 2.Treat both MAX_ADDRESS and MAX_UINT32 as invalid address for FSP global data in FspApiCallingCheck(). 3.Changed AsmReadEsp to AsmReadStackPointer. 4.Changed the type of the return value of AsmReadStackPointer from UINT32 to UINTN. 5.Changed the type of TemporaryMemoryBase, PermenentMemoryBase and BootLoaderStack from UINT32 to UINTN. 6.Some type casting to pointers are UINT32. Changed them to UINTN to accommodate both IA32 and X64. 7.Corrected some typos. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Ashraf Ali S <ashraf.ali.s@intel.com> Signed-off-by: Ted Kuo <ted.kuo@intel.com> Reviewed-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2022-04-15 10:37:36 +02:00
global ASM_PFX(AsmReadStackPointer)
ASM_PFX(AsmReadStackPointer):
IntelFsp2Pkg: FSP can utilize bootloader stack REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1485 Current FSP utilizes pre-allocated temporary memory from boot loader for both heap and stack. To reduce overall temporary memory usage FSP may share the same stack with boot loader and only needs a smaller memory for heap, no separate memory required for stack. Setting PcdFspHeapSizePercentage to 0 to enable FSP sharing stack with boot loader, in this case boot loader stack has to be large enough for FSP to use. Default is 50 (half memory heap and half memory stack) for backward compatible with original model. Test: Verified on internal platform and booting successfully with both modes. Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chasel Chiu <chasel.chiu@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
2019-01-23 09:12:38 +01:00
mov eax, esp
ret