FreeBSD/Linux Kernel Cross Reference
sys/amd64/vmm/io/vhpet.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2013 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
      * Copyright (c) 2013 Neel Natu <neel@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 NETAPP, INC ``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 NETAPP, INC 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _VHPET_H_
    #define _VHPET_H_
    
    #define VHPET_BASE      0xfed00000
    #define VHPET_SIZE      1024
    
    #ifdef _KERNEL
    struct vm_snapshot_meta;
    
    struct vhpet *vhpet_init(struct vm *vm);
    void    vhpet_cleanup(struct vhpet *vhpet);
    int     vhpet_mmio_write(struct vcpu *vcpu, uint64_t gpa, uint64_t val,
                int size, void *arg);
    int     vhpet_mmio_read(struct vcpu *vcpu, uint64_t gpa, uint64_t *val,
                int size, void *arg);
    int     vhpet_getcap(struct vm_hpet_cap *cap);
    #ifdef BHYVE_SNAPSHOT
    int     vhpet_snapshot(struct vhpet *vhpet, struct vm_snapshot_meta *meta);
    int     vhpet_restore_time(struct vhpet *vhpet);
    #endif
    
    #endif /* _KERNEL */
    
    #endif  /* _VHPET_H_ */

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