CloverBootloader/MdePkg/Library/BaseLib/Ia32/WriteLdtr.c
2019-09-03 12:58:42 +03:00

34 lines
557 B
C

/** @file
AsmWriteLdtr function
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Writes the current Local Descriptor Table Register (GDTR) selector.
Writes and the current LDTR descriptor specified by Ldtr. This function is
only available on IA-32 and x64.
@param Ldtr 16-bit LDTR selector value.
**/
VOID
EFIAPI
AsmWriteLdtr (
IN UINT16 Ldtr
)
{
_asm {
xor eax, eax
mov ax, Ldtr
lldt ax
}
}