4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# http://opensource.org/licenses/bsd-license.php.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Module Name:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# DisablePaging32.S
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Abstract:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# InternalX86DisablePaging32 function
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Notes:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_GLOBAL ASM_PFX(InternalX86DisablePaging32)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# VOID
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# InternalX86DisablePaging32 (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN SWITCH_STACK_ENTRY_POINT EntryPoint,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN VOID *Context1, OPTIONAL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN VOID *Context2, OPTIONAL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN VOID *NewStack
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_PFX(InternalX86DisablePaging32):
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl 4(%esp), %ebx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl 8(%esp), %ecx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl 12(%esp), %edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pushfl
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pop %edi # save EFLAGS to edi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cli
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl %cr0, %eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync btrl $31, %eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl 16(%esp), %esp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl %eax, %cr0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push %edi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync popfl # restore EFLAGS from edi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push %edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync push %ecx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync call *%ebx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync jmp . # EntryPoint() should not return