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e1f414b6 | 1 | /** @file\r |
2 | AsmWriteLdtr function\r | |
3 | \r | |
bb817c56 HT |
4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
e1f414b6 | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
e4a34497 | 8 | http://opensource.org/licenses/bsd-license.php.\r |
e1f414b6 | 9 | \r |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
1efcc4ae | 15 | \r |
f734a10a | 16 | \r |
e1f414b6 | 17 | \r |
42eedea9 | 18 | /**\r |
19 | Writes the current Local Descriptor Table Register (GDTR) selector.\r | |
20 | \r | |
21 | Writes and the current LDTR descriptor specified by Ldtr. This function is\r | |
030cd1a2 | 22 | only available on IA-32 and x64.\r |
42eedea9 | 23 | \r |
24 | @param Ldtr 16-bit LDTR selector value.\r | |
25 | \r | |
26 | **/\r | |
e1f414b6 | 27 | VOID\r |
28 | EFIAPI\r | |
29 | AsmWriteLdtr (\r | |
30 | IN UINT16 Ldtr\r | |
31 | )\r | |
32 | {\r | |
33 | _asm {\r | |
34 | xor eax, eax\r | |
35 | mov ax, Ldtr\r | |
36 | lldt ax\r | |
37 | }\r | |
38 | }\r | |
39 | \r |