projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | /** @file\r |
| 2 | AsmWriteIdtr function\r | |
| 3 | \r | |
| bb817c56 HT |
4 | Copyright (c) 2006 - 2010, 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 |
| 47fc17d8 | 16 | #include "BaseLibInternals.h"\r |
| e1f414b6 | 17 | \r |
| 42eedea9 | 18 | /**\r |
| 19 | Writes the current Interrupt Descriptor Table Register(GDTR) descriptor.\r | |
| 20 | \r | |
| 21 | Writes the current IDTR descriptor and returns it in Idtr. This function is\r | |
| 030cd1a2 | 22 | only available on IA-32 and x64.\r |
| 42eedea9 | 23 | \r |
| 2fc59a00 | 24 | @param Idtr The pointer to a IDTR descriptor.\r |
| 42eedea9 | 25 | \r |
| 26 | **/\r | |
| e1f414b6 | 27 | VOID\r |
| 28 | EFIAPI\r | |
| 29 | InternalX86WriteIdtr (\r | |
| 30 | IN CONST IA32_DESCRIPTOR *Idtr\r | |
| 31 | )\r | |
| 32 | {\r | |
| 33 | _asm {\r | |
| 34 | mov eax, Idtr\r | |
| 28b5f7c0 | 35 | pushfd\r |
| 36 | cli\r | |
| e1f414b6 | 37 | lidt fword ptr [eax]\r |
| 28b5f7c0 | 38 | popfd\r |
| e1f414b6 | 39 | }\r |
| 40 | }\r | |
| 41 | \r |