030cd1a2e9
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6854 6f19259b-4bc3-4df7-8a09-765794883524
38 lines
967 B
C
38 lines
967 B
C
/** @file
|
|
AsmWriteCr3 function
|
|
|
|
Copyright (c) 2006 - 2008, Intel Corporation<BR>
|
|
All rights reserved. This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
/**
|
|
Writes a value to Control Register 3 (CR3).
|
|
|
|
Writes and returns a new value to CR3. This function is only available on
|
|
IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.
|
|
|
|
@param Value The value to write to CR3.
|
|
|
|
@return The value written to CR3.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
AsmWriteCr3 (
|
|
UINTN Value
|
|
)
|
|
{
|
|
_asm {
|
|
mov eax, Value
|
|
mov cr3, eax
|
|
}
|
|
}
|
|
|