1.\" $NetBSD: vio9p.4,v 1.4 2021/10/21 13:21:53 andvar Exp $ 2.\" 3.\" Copyright (c) 2019 Internet Initiative Japan, Inc. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25.\" POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd October 24, 2019 28.Dt VIO9P 4 29.Os 30.Sh NAME 31.Nm vio9p 32.Nd VirtIO 9p front-end driver 33.Sh SYNOPSIS 34.Cd "vio9p* at virtio?" 35.Sh DESCRIPTION 36In conjunction with 37.Xr mount_9p 8 , 38the 39.Nm 40driver enables a 41.Nx 42system running as a VM guest to mount an exported file system 43by the host via virtio-9p. 44It exports a 9p end-point of virtio-9p via a character device file for 45.Xr mount_9p 8 . 46.Pp 47Each exported file system is assigned a character device and accessible via 48.Pa /dev/vio9p0 , 49.Pa /dev/vio9p1 50and so on, respectively, in exporting order by the host. 51.Sh FILES 52.Bl -tag -width XdevXvio9pX -compact 53.It Pa /dev/vio9p? 54.El 55.Sh EXAMPLES 56The following command mounts the first exported file system by the host at 57.Pa /mnt/9p : 58.Bd -literal -offset indent 59# mount_9p -cu /dev/vio9p0 /mnt/9p 60.Ed 61.Sh SEE ALSO 62.Xr virtio 4 , 63.Xr mount_9p 8 64.Sh HISTORY 65The 66.Nm 67driver first appeared in 68.Nx 10.0 . 69.Sh AUTHORS 70The 71.Nm 72driver was written by 73.An Ryota Ozaki Aq Mt ozaki-r@iij.ad.jp . 74