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diff --git a/share/man/man4/virtio_balloon.4 b/share/man/man4/virtio_balloon.4 new file mode 100644 index 0000000..4053f78 --- /dev/null +++ b/share/man/man4/virtio_balloon.4 @@ -0,0 +1,64 @@ +.\" Copyright (c) 2011 Bryan Venteicher +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd July 4, 2011 +.Dt VIRTIO_BALLOON 4 +.Os +.Sh NAME +.Nm virtio_balloon +.Nd VirtIO Memory Balloon driver +.Sh SYNOPSIS +To compile this driver into the kernel, +place the following lines in your +kernel configuration file: +.Bd -ragged -offset indent +.Cd "device virtio_balloon" +.Ed +.Pp +Alternatively, to load the driver as a +module at boot time, place the following line in +.Xr loader.conf 5 : +.Bd -literal -offset indent +virtio_balloon_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +device driver provides support for VirtIO memory balloon devices. +.Pp +The memory balloon allows the guest to, at the request of the +hypervisor, return memory allocated to the hypervisor so it can +be made available to other guests. The hypervisor can later +signal the balloon to return the memory. +.Sh SEE ALSO +.Xr virtio 4 +.Sh HISTORY +The +.Nm +driver was written by +.An Bryan Venteicher Aq bryanv@daemoninthecloset.org . +It first appeared in +.Fx 9.0 . |