CloverBootloader/MdePkg/Library/BaseLib/Ia32/ReadCr3.c

33 lines
558 B
C
Raw Normal View History

/** @file
AsmReadCr3 function
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Reads the current value of the Control Register 3 (CR3).
Reads and returns the current value of CR3. This function is only available
on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on
x64.
@return The value of the Control Register 3 (CR3).
**/
UINTN
EFIAPI
AsmReadCr3 (
VOID
)
{
__asm {
mov eax, cr3
}
}