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/module.h>
26#include <linux/ftrace.h>
27
28static inline int klp_check_compiler_support(void)
29{
30#ifndef CC_USING_FENTRY
31	return 1;
32#endif
33	return 0;
34}
35int klp_write_module_reloc(struct module *mod, unsigned long type,
36			   unsigned long loc, unsigned long value);
37
38static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
39{
40	regs->ip = ip;
41}
42
43#endif /* _ASM_X86_LIVEPATCH_H */

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * livepatch.h - x86-specific Kernel Live Patching Core
 4 *
 5 * Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>
 6 * Copyright (C) 2014 SUSE
 
 
 
 
 
 
 
 
 
 
 
 
 
 7 */
 8
 9#ifndef _ASM_X86_LIVEPATCH_H
10#define _ASM_X86_LIVEPATCH_H
11
12#include <asm/setup.h>
 
13#include <linux/ftrace.h>
14
15static inline void klp_arch_set_pc(struct ftrace_regs *fregs, unsigned long ip)
 
 
 
 
 
 
 
 
 
 
16{
17	ftrace_instruction_pointer_set(fregs, ip);
18}
19
20#endif /* _ASM_X86_LIVEPATCH_H */