Import some basic libraries instances for Mde Packages.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2704 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Ia32/DisablePaging32.c

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+/** @file
+  AsmDisablePaging32 function.
+
+  Copyright (c) 2006 - 2007, Intel Corporation<BR>
+  All rights reserved. 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.
+
+**/
+
+//
+// Include common header file for this module.
+//
+#include "CommonHeader.h"
+
+__declspec (naked)
+VOID
+EFIAPI
+InternalX86DisablePaging32 (
+  IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,
+  IN      VOID                      *Context1,    OPTIONAL
+  IN      VOID                      *Context2,    OPTIONAL
+  IN      VOID                      *NewStack
+  )
+{
+  _asm {
+    push    ebp
+    mov     ebp, esp
+    mov     ebx, EntryPoint
+    mov     ecx, Context1
+    mov     edx, Context2
+    pushfd
+    pop     edi                         // save EFLAGS to edi
+    cli
+    mov     eax, cr0
+    btr     eax, 31
+    mov     esp, NewStack
+    mov     cr0, eax
+    push    edi
+    popfd                               // restore EFLAGS from edi
+    push    edx
+    push    ecx
+    call    ebx
+    jmp     $                           // EntryPoint() should not return
+  }
+}
+