projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | /** @file\r |
| 2 | AsmWriteGdtr function\r | |
| 3 | \r | |
| 4 | Copyright (c) 2006 - 2007, Intel Corporation<BR>\r | |
| 5 | All rights reserved. This program and the accompanying materials\r | |
| 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 |
| f734a10a A |
16 | #include <BaseLibInternals.h>\r |
| 17 | \r | |
| e1f414b6 | 18 | \r |
| 42eedea9 | 19 | /**\r |
| 20 | Writes the current Global Descriptor Table Register (GDTR) descriptor.\r | |
| 21 | \r | |
| 22 | Writes and the current GDTR descriptor specified by Gdtr. This function is\r | |
| 23 | only available on IA-32 and X64.\r | |
| 24 | \r | |
| 25 | @param Gdtr Pointer to a GDTR descriptor.\r | |
| 26 | \r | |
| 27 | **/\r | |
| e1f414b6 | 28 | VOID\r |
| 29 | EFIAPI\r | |
| 30 | InternalX86WriteGdtr (\r | |
| 31 | IN CONST IA32_DESCRIPTOR *Gdtr\r | |
| 32 | )\r | |
| 33 | {\r | |
| 34 | _asm {\r | |
| 35 | mov eax, Gdtr\r | |
| 36 | lgdt fword ptr [eax]\r | |
| 37 | }\r | |
| 38 | }\r | |
| 39 | \r |