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e1f414b6 | 1 | /** @file\r |
2 | AsmReadIdtr 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 | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
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 |
47fc17d8 | 16 | #include "BaseLibInternals.h"\r |
f734a10a | 17 | \r |
e1f414b6 | 18 | \r |
42eedea9 | 19 | /**\r |
20 | Reads the current Interrupt Descriptor Table Register(GDTR) descriptor.\r | |
21 | \r | |
22 | Reads and returns the current IDTR descriptor and returns it in Idtr. This\r | |
030cd1a2 | 23 | function is only available on IA-32 and x64.\r |
42eedea9 | 24 | \r |
25 | @param Idtr Pointer to a IDTR descriptor.\r | |
26 | \r | |
27 | **/\r | |
e1f414b6 | 28 | VOID\r |
29 | EFIAPI\r | |
30 | InternalX86ReadIdtr (\r | |
31 | OUT IA32_DESCRIPTOR *Idtr\r | |
32 | )\r | |
33 | {\r | |
34 | _asm {\r | |
35 | mov eax, Idtr\r | |
36 | sidt fword ptr [eax]\r | |
37 | }\r | |
38 | }\r |