CloverBootloader/MdePkg/Library/BaseLib/Ia32/ReadLdtr.c

32 lines
498 B
C
Raw Normal View History

/** @file
AsmReadLdtr function
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Reads the current Local Descriptor Table Register(LDTR) selector.
Reads and returns the current 16-bit LDTR descriptor value. This function is
only available on IA-32 and x64.
@return The current selector of LDT.
**/
UINT16
EFIAPI
AsmReadLdtr (
VOID
)
{
_asm {
sldt ax
}
}