1/*
2 * livepatch.h - x86-specific Kernel Live Patching Core
3 *
4 * Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>
5 * Copyright (C) 2014 SUSE
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21#ifndef _ASM_X86_LIVEPATCH_H
22#define _ASM_X86_LIVEPATCH_H
23
24#include <asm/setup.h>
25#include <linux/ftrace.h>
26
27static inline int klp_check_compiler_support(void)
28{
29#ifndef CC_USING_FENTRY
30 return 1;
31#endif
32 return 0;
33}
34
35static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
36{
37 regs->ip = ip;
38}
39
40#endif /* _ASM_X86_LIVEPATCH_H */
41