1.\" $OpenBSD: vmmci.4,v 1.2 2017/01/13 16:02:27 jmc Exp $ 2.\" 3.\" Copyright (c) 2017 Reyk Floeter <reyk@openbsd.org> 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: January 13 2017 $ 18.Dt VMMCI 4 19.Os 20.Sh NAME 21.Nm vmmci 22.Nd VMM control interface 23.Sh SYNOPSIS 24.Cd "vmmci* at virtio?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides a control interface for virtual machines running inside 29.Ox 30.Xr vmm 4 31(virtual machine monitor) 32hosts. 33.Pp 34The driver handles shutdown and reboot requests from the 35.Xr vmm 4 36host by signalling 37.Xr init 8 38with 39.Dv SIGUSR2 40and 41.Dv SIGINT 42respectively. 43.Sh SEE ALSO 44.Xr pvbus 4 , 45.Xr vmm 4 , 46.Xr init 8 , 47.Xr vmd 8 48.Sh HISTORY 49The 50.Nm 51driver first appeared in 52.Ox 6.1 . 53.Sh AUTHORS 54The 55.Nm 56driver was written by 57.An Reyk Floeter Aq Mt reyk@openbsd.org . 58