1 /*- 2 * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef X86_PVCLOCK 30 #define X86_PVCLOCK 31 32 struct pvclock_vcpu_time_info { 33 uint32_t version; 34 uint32_t pad0; 35 uint64_t tsc_timestamp; 36 uint64_t system_time; 37 uint32_t tsc_to_system_mul; 38 int8_t tsc_shift; 39 uint8_t flags; 40 uint8_t pad[2]; 41 }; 42 43 #define PVCLOCK_FLAG_TSC_STABLE 0x01 44 #define PVCLOCK_FLAG_GUEST_PASUED 0x02 45 46 struct pvclock_wall_clock { 47 uint32_t version; 48 uint32_t sec; 49 uint32_t nsec; 50 }; 51 52 void pvclock_resume(void); 53 uint64_t pvclock_get_last_cycles(void); 54 uint64_t pvclock_tsc_freq(struct pvclock_vcpu_time_info *ti); 55 uint64_t pvclock_get_timecount(struct pvclock_vcpu_time_info *ti); 56 void pvclock_get_wallclock(struct pvclock_wall_clock *wc, 57 struct timespec *ts); 58 59 #endif 60