1 /** @file
2   IA-32/x64 AsmReadGdtr()
3 
4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
5   This program and the accompanying materials
6   are licensed and made available under the terms and conditions of the BSD License
7   which accompanies this distribution.  The full text of the license may be found at
8   http://opensource.org/licenses/bsd-license.php.
9 
10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13 **/
14 
15 
16 
17 
18 #include "BaseLibInternals.h"
19 
20 /**
21   Reads the current Global Descriptor Table Register(GDTR) descriptor.
22 
23   Reads and returns the current GDTR descriptor and returns it in Gdtr. This
24   function is only available on IA-32 and x64.
25 
26   If Gdtr is NULL, then ASSERT().
27 
28   @param  Gdtr  The pointer to a GDTR descriptor.
29 
30 **/
31 VOID
32 EFIAPI
AsmReadGdtr(OUT IA32_DESCRIPTOR * Gdtr)33 AsmReadGdtr (
34   OUT     IA32_DESCRIPTOR           *Gdtr
35   )
36 {
37   ASSERT (Gdtr != NULL);
38   InternalX86ReadGdtr (Gdtr);
39 }
40