source: trunk/hal/x86_64/core/hal_cpu.S @ 78

Last change on this file since 78 was 78, checked in by max@…, 5 years ago

print %rip, and add cli/sti

File size: 1.2 KB
Line 
1/*
2 * hal_cpu.S - Miscellaneous CPU functions
3 *
4 * Copyright (c) 2017 Maxime Villard
5 *
6 * This file is part of ALMOS-MKH.
7 *
8 * ALMOS-MKH is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2.0 of the License.
11 *
12 * ALMOS-MKH is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with ALMOS-MKH.; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#define x86_ASM
23#include <hal_boot.h>
24
25ASM_ENTRY(lgdt)
26        lgdt    (%rdi)
27        ret
28
29ASM_ENTRY(lidt)
30        lidt    (%rdi)
31        ret
32
33ASM_ENTRY(ltr)
34        ltr     %di
35        ret
36
37ASM_ENTRY(invlpg)
38        invlpg  (%rdi)
39        ret
40
41ASM_ENTRY(sti)
42        sti
43        ret
44
45ASM_ENTRY(cli)
46        cli
47        ret
48
49ASM_ENTRY(rdmsr)
50        movq    %rdi,%rcx
51        xorq    %rax,%rax
52        rdmsr
53        shlq    $32,%rdx
54        orq     %rdx,%rax
55        ret
56
57ASM_ENTRY(wrmsr)
58        movq    %rdi,%rcx
59        movq    %rsi,%rax
60        movq    %rsi,%rdx
61        shrq    $32,%rdx
62        wrmsr
63        ret
64
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