mirror of
https://github.com/acidanthera/audk.git
synced 2025-08-17 07:38:10 +02:00
0acd869796
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
35 lines
799 B
NASM
35 lines
799 B
NASM
;------------------------------------------------------------------------------ ;
|
|
; Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
|
|
; SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
;
|
|
;-------------------------------------------------------------------------------
|
|
|
|
%include "Nasm.inc"
|
|
|
|
DEFAULT REL
|
|
SECTION .text
|
|
|
|
global ASM_PFX(DisableCet)
|
|
ASM_PFX(DisableCet):
|
|
|
|
; Skip the pushed data for call
|
|
mov rax, 1
|
|
INCSSP_RAX
|
|
|
|
mov rax, cr4
|
|
btr eax, 23 ; clear CET
|
|
mov cr4, rax
|
|
ret
|
|
|
|
global ASM_PFX(EnableCet)
|
|
ASM_PFX(EnableCet):
|
|
|
|
mov rax, cr4
|
|
bts eax, 23 ; set CET
|
|
mov cr4, rax
|
|
|
|
; use jmp to skip the check for ret
|
|
pop rax
|
|
jmp rax
|
|
|