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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@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