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      1 #ifndef _UAPI_LINUX_VIRTIO_TYPES_H
      2 #define _UAPI_LINUX_VIRTIO_TYPES_H
      3 /* Type definitions for virtio implementations.
      4  *
      5  * This header is BSD licensed so anyone can use the definitions to implement
      6  * compatible drivers/servers.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of IBM nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  * Copyright (C) 2014 Red Hat, Inc.
     32  * Author: Michael S. Tsirkin <mst (at) redhat.com>
     33  */
     34 #include <linux/types.h>
     35 
     36 /*
     37  * __virtio{16,32,64} have the following meaning:
     38  * - __u{16,32,64} for virtio devices in legacy mode, accessed in native endian
     39  * - __le{16,32,64} for standard-compliant virtio devices
     40  */
     41 
     42 typedef __u16 __bitwise __virtio16;
     43 typedef __u32 __bitwise __virtio32;
     44 typedef __u64 __bitwise __virtio64;
     45 
     46 #endif /* _UAPI_LINUX_VIRTIO_TYPES_H */
     47