summaryrefslogblamecommitdiff
path: root/include/linux/pvclock_gtod.h
blob: f63549581f3e18a048fdd99208bd2130ff78a2f5 (plain) (tree) 
b24413180f56 ^

e0b306fef905 ^





780427f0e113 ^







e0b306fef905 ^




1

2
3
4
5
6

7
8
9
10
11
12
13

14
15
16
17

                                      




                           






                                                                      



                                                                       
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PVCLOCK_GTOD_H
#define _PVCLOCK_GTOD_H

#include <linux/notifier.h>

/*
 * The pvclock gtod notifier is called when the system time is updated
 * and is used to keep guest time synchronized with host time.
 *
 * The 'action' parameter in the notifier function is false (0), or
 * true (non-zero) if system time was stepped.
 */
extern int pvclock_gtod_register_notifier(struct notifier_block *nb);
extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb);

#endif /* _PVCLOCK_GTOD_H */