1 /** @file
2 AsmWriteLdtr function
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 /**
19 Writes the current Local Descriptor Table Register (GDTR) selector.
20
21 Writes and the current LDTR descriptor specified by Ldtr. This function is
22 only available on IA-32 and x64.
23
24 @param Ldtr 16-bit LDTR selector value.
25
26 **/
27 VOID
28 EFIAPI
AsmWriteLdtr(IN UINT16 Ldtr)29 AsmWriteLdtr (
30 IN UINT16 Ldtr
31 )
32 {
33 _asm {
34 xor eax, eax
35 mov ax, Ldtr
36 lldt ax
37 }
38 }
39
40