1.\" $OpenBSD: xbf.4,v 1.2 2016/12/07 17:11:09 jmc Exp $ 2.\" 3.\" Copyright (c) 2016 Mike Belopuhov 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 7 2016 $ 18.Dt XBF 4 19.Os 20.Sh NAME 21.Nm xbf 22.Nd Xen Blkfront virtual disk 23.Sh SYNOPSIS 24.Cd "xbf* at xen?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for a paravirtual disk interface 29.Qq Blkfront , 30native to the Xen hypervisor. 31.Pp 32During attach the 33.Nm 34driver will ask the hypervisor to switch all configured virtual disks 35over to the Blkfront interface regardless of the VM configuration. 36.Sh SEE ALSO 37.Xr autoconf 4 , 38.Xr intro 4 , 39.Xr xen 4 40.Sh HISTORY 41The 42.Nm 43driver first appeared in 44.Ox 6.1 . 45.Sh AUTHORS 46The 47.Nm 48driver was written by 49.An Mike Belopuhov Aq Mt mikeb@openbsd.org 50based on the 51.Xr vdsk 4 52driver by 53.An -nosplit 54.An Mark Kettenis Aq Mt kettenis@openbsd.org , 55inspired by the 56.Fx 57implementation. 58