Set correct DS/ES/FS/GS/SS segment selectors after GDT loaded.

Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Rui Sun <rui.sun@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13667 6f19259b-4bc3-4df7-8a09-765794883524

UefiCpuPkg/Universal/Acpi/S3Resume2Pei/Ia32/AsmFuncs.asm

@@ -0,0 +1,45 @@
+;------------------------------------------------------------------------------ ;
+; Copyright (c) 2012, 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.
+;
+; Module Name:
+;
+;   AsmFuncs.Asm
+;
+; Abstract:
+;
+;   Assembly function to set segment selectors.
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+.686
+.model  flat,C
+
+.code
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; AsmSetDataSelectors (
+;   IN UINT16   SelectorValue
+;   );
+;------------------------------------------------------------------------------
+AsmSetDataSelectors   PROC near public
+  mov     eax, [esp + 4]
+  mov     ds, ax
+  mov     es, ax
+  mov     fs, ax
+  mov     gs, ax
+  mov     ss, ax   
+  ret
+AsmSetDataSelectors   ENDP
+
+END