MdePkg/Library/BaseLib/x86WriteIdtr.c

   1 /** @file
   2   IA-32/x64 AsmWriteIdtr()
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   5   All rights reserved. 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 // Include common header file for this module.
  17 //
  18
  19
  20 #include "BaseLibInternals.h"
  21
  22 /**
  23   Writes the current Interrupt Descriptor Table Register(GDTR) descriptor.
  24
  25   Writes the current IDTR descriptor and returns it in Idtr. This function is
  26   only available on IA-32 and X64.
  27
  28   If Idtr is NULL, then ASSERT().
  29
  30   @param  Idtr  Pointer to a IDTR descriptor.
  31
  32 **/
  33 VOID
  34 EFIAPI
  35 AsmWriteIdtr (
  36   IN      CONST IA32_DESCRIPTOR     *Idtr
  37   )
  38 {
  39   ASSERT (Idtr != NULL);
  40   InternalX86WriteIdtr (Idtr);
  41 }