text: /*-
   * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD: head/sys/x86/include/pvclock.h 278184 2015-02-04 08:33:04Z bryanv $
   */
  
  #ifndef X86_PVCLOCK
  #define X86_PVCLOCK
  
  struct pvclock_vcpu_time_info {
  	uint32_t	version;
  	uint32_t	pad0;
  	uint64_t	tsc_timestamp;
  	uint64_t	system_time;
  	uint32_t	tsc_to_system_mul;
  	int8_t		tsc_shift;
  	uint8_t		flags;
  	uint8_t		pad[2];
  };
  
  #define PVCLOCK_FLAG_TSC_STABLE		0x01
  #define PVCLOCK_FLAG_GUEST_PASUED	0x02
  
  struct pvclock_wall_clock {
  	uint32_t	version;
  	uint32_t	sec;
  	uint32_t	nsec;
  };
  
  void		pvclock_resume(void);
  uint64_t	pvclock_get_last_cycles(void);
  uint64_t	pvclock_tsc_freq(struct pvclock_vcpu_time_info *ti);
  uint64_t	pvclock_get_timecount(struct pvclock_vcpu_time_info *ti);
  void		pvclock_get_wallclock(struct pvclock_wall_clock *wc,
  		    struct timespec *ts);
  
  #endif
  