16a16ea6e3
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>
73 lines
1.7 KiB
ArmAsm
73 lines
1.7 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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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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#------------------------------------------------------------------------------
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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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xorl %eax, %eax
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jmp ASM_PFX(FspSwitchStack)
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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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ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)
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ASM_PFX(Loader2PeiSwitchStack):
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jmp ASM_PFX(FspSwitchStack)
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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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ASM_GLOBAL ASM_PFX(FspSwitchStack)
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ASM_PFX(FspSwitchStack):
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#
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#Save current contexts
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#
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push %eax
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pushf
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cli
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pusha
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sub $0x08, %esp
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sidt (%esp)
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#
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# Load new stack
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#
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push %esp
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call ASM_PFX(SwapStack)
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movl %eax, %esp
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#
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# Restore previous contexts
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#
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lidt (%esp)
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add $0x08,%esp
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popa
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popf
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add $0x04,%esp
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ret
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