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#------------------------------------------------------------------------------
#
# Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php.
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
# Abstract:
#
# Switch the stack from temporary memory to permenent memory.
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)
ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)
#------------------------------------------------------------------------------
# UINT32
# EFIAPI
# Pei2LoaderSwitchStack (
# VOID
# )
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)
ASM_PFX(Pei2LoaderSwitchStack):
jmp ASM_PFX(Loader2PeiSwitchStack)
#------------------------------------------------------------------------------
# UINT32
# EFIAPI
# Loader2PeiSwitchStack (
# )
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(Loader2PeiSwitchStack)
ASM_PFX(Loader2PeiSwitchStack):
#Save current contexts
push $exit
pushf
pushf
cli
pusha
push $0x0
push $0x0
sidt (%esp)
# Load new stack
push %esp
call ASM_PFX(SwapStack)
mov %eax,%esp
# Restore previous contexts
lidt (%esp)
add $8,%esp
popa
popf
popf
exit:
ret
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