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;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; DisablePaging32.Asm
;
; Abstract:
;
; AsmDisablePaging32 function
;
; Notes:
;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
; VOID
; EFIAPI
; InternalX86DisablePaging32 (
; IN SWITCH_STACK_ENTRY_POINT EntryPoint,
; IN VOID *Context1, OPTIONAL
; IN VOID *Context2, OPTIONAL
; IN VOID *NewStack
; );
;------------------------------------------------------------------------------
global ASM_PFX(InternalX86DisablePaging32)
ASM_PFX(InternalX86DisablePaging32):
mov ebx, [esp + 4]
mov ecx, [esp + 8]
mov edx, [esp + 12]
pushfd
pop edi ; save EFLAGS to edi
cli
mov eax, cr0
btr eax, 31
mov esp, [esp + 16]
mov cr0, eax
push edi
popfd ; restore EFLAGS from edi
push edx
push ecx
call ebx
jmp $ ; EntryPoint() should not return
|
