2019-06-02 23:19:11 +02:00
|
|
|
;=----------------------------------------------------------------------------=;
|
2020-09-27 17:33:48 +02:00
|
|
|
; OS on Kaleid ;
|
2019-06-02 23:19:11 +02:00
|
|
|
; ;
|
|
|
|
|
; Desc: Paging related functions ;
|
|
|
|
|
; ;
|
|
|
|
|
; ;
|
2021-02-18 19:54:35 +01:00
|
|
|
; Copyright © 2018-2021 The OS/K Team ;
|
2019-06-02 23:19:11 +02:00
|
|
|
; ;
|
|
|
|
|
; This file is part of OS/K. ;
|
|
|
|
|
; ;
|
|
|
|
|
; OS/K is free software: you can redistribute it and/or modify ;
|
|
|
|
|
; it under the terms of the GNU General Public License as published by ;
|
|
|
|
|
; the Free Software Foundation, either version 3 of the License, or ;
|
|
|
|
|
; (at your option) any later version. ;
|
|
|
|
|
; ;
|
|
|
|
|
; OS/K is distributed in the hope that it will be useful, ;
|
|
|
|
|
; but WITHOUT ANY WARRANTY; without even the implied warranty of ;
|
|
|
|
|
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;
|
|
|
|
|
; GNU General Public License for more details. ;
|
|
|
|
|
; ;
|
|
|
|
|
; You should have received a copy of the GNU General Public License ;
|
|
|
|
|
; along with OS/K. If not, see <https://www.gnu.org/licenses/>. ;
|
|
|
|
|
;=----------------------------------------------------------------------------=;
|
2019-05-14 14:39:35 +02:00
|
|
|
|
|
|
|
|
global MmEnableWriteProtect
|
|
|
|
|
global MmDisableWriteProtect
|
|
|
|
|
global MmLoadPML4
|
|
|
|
|
|
|
|
|
|
MmEnableWriteProtect:
|
|
|
|
|
push rax
|
|
|
|
|
mov rax, cr0
|
|
|
|
|
or rax, 1<<16
|
|
|
|
|
mov cr0, rax
|
|
|
|
|
pop rax
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
MmDisableWriteProtect:
|
|
|
|
|
push rax
|
|
|
|
|
mov rax, cr0
|
|
|
|
|
and rax, ~(1<<16)
|
|
|
|
|
mov cr0, rax
|
|
|
|
|
pop rax
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
MmLoadPML4:
|
2019-05-15 02:26:55 +02:00
|
|
|
push rax
|
|
|
|
|
mov rax, rdi
|
|
|
|
|
mov cr3, rax
|
|
|
|
|
pop rax
|
2019-05-14 14:39:35 +02:00
|
|
|
ret
|
