audk/UefiCpuPkg/ResetVector/Vtf0/Ia32/PageTables64.asm

25 lines
609 B
NASM

;------------------------------------------------------------------------------
; @file
; Sets the CR3 register for 64-bit paging
;
; Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;------------------------------------------------------------------------------
BITS 32
;
; Modified: EAX
;
SetCr3ForPageTables64:
;
; These pages are built into the ROM image in X64/PageTables.asm
;
mov eax, ADDR_OF(TopLevelPageDirectory)
mov cr3, eax
OneTimeCallRet SetCr3ForPageTables64