1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
4  *
5  * Panic RV reactor:
6  *   Prints the exception msg to the kernel message log and panic().
7  */
8 
9 #include <linux/ftrace.h>
10 #include <linux/tracepoint.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/rv.h>
15 
rv_panic_reaction(char * msg)16 static void rv_panic_reaction(char *msg)
17 {
18 	panic(msg);
19 }
20 
21 static struct rv_reactor rv_panic = {
22 	.name = "panic",
23 	.description = "panic the system if an exception is found.",
24 	.react = rv_panic_reaction
25 };
26 
register_react_panic(void)27 static int __init register_react_panic(void)
28 {
29 	rv_register_reactor(&rv_panic);
30 	return 0;
31 }
32 
unregister_react_panic(void)33 static void __exit unregister_react_panic(void)
34 {
35 	rv_unregister_reactor(&rv_panic);
36 }
37 
38 module_init(register_react_panic);
39 module_exit(unregister_react_panic);
40 
41 MODULE_AUTHOR("Daniel Bristot de Oliveira");
42 MODULE_DESCRIPTION("panic rv reactor: panic if an exception is found.");
43