1*e5cc2e7eSschwarze.\" $OpenBSD: vrng.4,v 1.3 2013/07/16 16:05:50 schwarze Exp $ 273b30718Skettenis.\" 373b30718Skettenis.\" Copyright (c) 2008 Mark Kettenis <kettenis@openbsd.org> 473b30718Skettenis.\" 573b30718Skettenis.\" Permission to use, copy, modify, and distribute this software for any 673b30718Skettenis.\" purpose with or without fee is hereby granted, provided that the above 773b30718Skettenis.\" copyright notice and this permission notice appear in all copies. 873b30718Skettenis.\" 973b30718Skettenis.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1073b30718Skettenis.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1173b30718Skettenis.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1273b30718Skettenis.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1373b30718Skettenis.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1473b30718Skettenis.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1573b30718Skettenis.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1673b30718Skettenis.\" 17*e5cc2e7eSschwarze.Dd $Mdocdate: July 16 2013 $ 1873b30718Skettenis.Dt VRNG 4 sparc64 1973b30718Skettenis.Os 2073b30718Skettenis.Sh NAME 2173b30718Skettenis.Nm vrng 2273b30718Skettenis.Nd virtual random number generator 2373b30718Skettenis.Sh SYNOPSIS 2473b30718Skettenis.Cd "vrng0 at vbus?" 2573b30718Skettenis.Sh DESCRIPTION 2673b30718SkettenisThe 2773b30718Skettenis.Nm 2873b30718Skettenisdriver provides support for the random number generation service 2973b30718Skettenisprovided by the UltraSPARC Hypervisor as found on sun4v systems. 3073b30718Skettenis.Pp 31e56c27daSjmcDriven by periodic checks for available data from the generator, 3273b30718Skettenis.Nm 3373b30718Skettenissupplies entropy to the 3473b30718Skettenis.Xr random 4 3573b30718Skettenisdriver for common usage. 3673b30718Skettenis.Sh SEE ALSO 3773b30718Skettenis.Xr intro 4 , 3873b30718Skettenis.Xr random 4 , 3973b30718Skettenis.Xr vbus 4 4073b30718Skettenis.Sh HISTORY 4173b30718SkettenisThe 4273b30718Skettenis.Nm 4373b30718Skettenisdriver first appeared in 4473b30718Skettenis.Ox 4.5 . 4573b30718Skettenis.Sh AUTHORS 4673b30718SkettenisThe 4773b30718Skettenis.Nm 4873b30718Skettenisdriver was written by 49*e5cc2e7eSschwarze.An Mark Kettenis Aq Mt kettenis@openbsd.org . 5073b30718Skettenis.Sh BUGS 5173b30718SkettenisThe 5273b30718Skettenis.Nm 5373b30718Skettenisdriver should probably do periodic 5473b30718Skettenis.Dq health checks 5573b30718Sketteniswhen running in a Trusted Domain, but currently does not. 56