mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-27 13:34:00 +01:00
e1485d7815
PR: 205705 184046 Submitted by: Matt Macy <matt@mattmacy.io> Reviewed by: grehan Differential Revision: https://reviews.freebsd.org/D13062
106 lines
3.0 KiB
Groff
106 lines
3.0 KiB
Groff
.\" Copyright (c) 2013 Peter Grehan
|
|
.\" 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 AUTHORS 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 AUTHORS 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 December 19, 2013
|
|
.Dt VMM 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm vmm.ko
|
|
.Nd "bhyve virtual machine monitor"
|
|
.Sh SYNOPSIS
|
|
.Pp
|
|
To load the driver as a module at boot, add this line to
|
|
.Xr loader.conf 5 :
|
|
.Bd -literal -offset indent
|
|
.Cd vmm_load="YES"
|
|
.Ed
|
|
.Pp
|
|
The module can also be loaded manually with
|
|
.Xr kldload 8 :
|
|
.Bd -literal -offset indent
|
|
kldload vmm
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
provides the kernel portion of the
|
|
.Xr bhyve 4
|
|
hypervisor.
|
|
.Pp
|
|
An Intel CPU with VT-x/EPT or AMD CPU with SVM support is required.
|
|
.Pp
|
|
PCI device passthrough to a virtual machine requires
|
|
hardware with VT-d support.
|
|
.Sh PCI PASSTHROUGH
|
|
When the hardware supports VT-d, and
|
|
.Nm
|
|
has been loaded at boot time,
|
|
PCI devices can be reserved for use by the hypervisor.
|
|
Entries consisting of the PCI
|
|
.Ar bus Ns / Ns Ar slot Ns / Ns Ar function
|
|
are added to the
|
|
.Va pptdevs
|
|
.Xr loader.conf 5
|
|
variable.
|
|
Additional entries are separated by spaces.
|
|
Host PCI devices that match an entry will be assigned to the hypervisor
|
|
and will not be probed by
|
|
.Fx
|
|
device drivers.
|
|
See the
|
|
.Sx EXAMPLES
|
|
section below for sample usage.
|
|
.Pp
|
|
A large number of PCI device entries may require a string longer than the
|
|
128-character limit of
|
|
.Xr loader.conf 5
|
|
variables.
|
|
The
|
|
.Va pptdevs2
|
|
and
|
|
.Va pptdevs3
|
|
variables can be used for additional entries.
|
|
.Sh EXAMPLES
|
|
Reserve three PCI devices for use by the hypervisor: bus 10 slot 0 function 0,
|
|
bus 6 slot 5 function 0, and bus 6 slot 5 function 1.
|
|
.Bd -literal -offset indent
|
|
pptdevs="10/0/0 6/5/0 6/5/1"
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr bhyve 4 ,
|
|
.Xr loader.conf 5 ,
|
|
.Xr bhyve 8 ,
|
|
.Xr bhyveload 8 ,
|
|
.Xr kldload 8
|
|
.Sh HISTORY
|
|
.Nm vmm.ko
|
|
first appeared in
|
|
.Fx 10.0 .
|
|
.Sh AUTHORS
|
|
.An Neel Natu Aq neel@freebsd.org
|
|
.An Peter Grehan Aq grehan@freebsd.org
|
|
|
|
|