1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Virtual PTP 1588 clock for use with KVM guests
4  *
5  * Copyright (C) 2017 Red Hat Inc.
6  */
7 
8 #ifndef _PTP_KVM_H_
9 #define _PTP_KVM_H_
10 
11 #include <linux/types.h>
12 
13 struct timespec64;
14 struct clocksource;
15 
16 int kvm_arch_ptp_init(void);
17 int kvm_arch_ptp_get_clock(struct timespec64 *ts);
18 int kvm_arch_ptp_get_crosststamp(u64 *cycle,
19 		struct timespec64 *tspec, struct clocksource **cs);
20 
21 #endif /* _PTP_KVM_H_ */
22