1.\" $OpenBSD: virtio.4,v 1.10 2015/12/05 19:36:19 sf Exp $ 2.\" 3.\" Copyright (c) 2012 Stefan Fritsch <sf@sfritsch.de> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: December 5 2015 $ 18.Dt VIRTIO 4 19.Os 20.Sh NAME 21.Nm virtio 22.Nd VirtIO support driver 23.Sh SYNOPSIS 24.Cd "virtio* at pci?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support service for paravirtualized devices using the VirtIO 29protocol. 30Such devices are provided by bhyve, KVM, QEMU, and VirtualBox. 31.Pp 32Currently there are drivers for the following 33.Nm 34devices: 35.Pp 36.Bl -tag -width "vioscsi(4)XXX" -offset indent -compact 37.It Xr vio 4 38VirtIO network device 39.It Xr vioblk 4 40VirtIO disk 41.It Xr viomb 4 42VirtIO memory ballooning driver 43.It Xr viornd 4 44VirtIO random number device 45.It Xr vioscsi 4 46VirtIO SCSI adapter 47.El 48.Pp 49The 50.Nm 51driver conforms to the virtio 0.9.5 specification. 52The virtio 1.0 standard is not supported, yet. 53.Sh SEE ALSO 54.Xr intro 4 55.Sh HISTORY 56The 57.Nm 58driver first appeared in 59.Ox 5.3 . 60.Sh AUTHORS 61.An -nosplit 62The 63.Nm 64driver was ported to 65.Ox 66and improved by 67.An Stefan Fritsch Aq Mt sf@sfritsch.de . 68It is based on the 69.Nx 70driver by 71.An Minoura Makoto . 72