6ee52c658c
A couple of minor memory size option related nits: - use common name 'memsize' (instead of 'max-size' or just 'size') - bhyve: update usage with memsize unit suffix, drop legacy "MB" unit - bhyveload: update usage with memsize unit suffix - bhyve(8): document default size - bhyveload(8): use memsize formatting like it's done in bhyve(8) Reviewed by: wblock, grehan Approved by: re (kib), wblock, grehan Differential Revision: https://reviews.freebsd.org/D6952
377 lines
9.8 KiB
Groff
377 lines
9.8 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 June 24, 2016
|
|
.Dt BHYVE 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm bhyve
|
|
.Nd "run a guest operating system inside a virtual machine"
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl abehuwxACHPSWY
|
|
.Op Fl c Ar numcpus
|
|
.Op Fl g Ar gdbport
|
|
.Op Fl l Ar lpcdev Ns Op , Ns Ar conf
|
|
.Op Fl m Ar memsize Ns Op Ar K|k|M|m|G|g|T|t
|
|
.Op Fl p Ar vcpu:hostcpu
|
|
.Op Fl s Ar slot,emulation Ns Op , Ns Ar conf
|
|
.Op Fl U Ar uuid
|
|
.Ar vmname
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
is a hypervisor that runs guest operating systems inside a
|
|
virtual machine.
|
|
.Pp
|
|
Parameters such as the number of virtual CPUs, amount of guest memory, and
|
|
I/O connectivity can be specified with command-line parameters.
|
|
.Pp
|
|
The guest operating system must be loaded with
|
|
.Xr bhyveload 8
|
|
or a similar boot loader before running
|
|
.Nm .
|
|
.Pp
|
|
.Nm
|
|
runs until the guest operating system reboots or an unhandled hypervisor
|
|
exit is detected.
|
|
.Sh OPTIONS
|
|
.Bl -tag -width 10n
|
|
.It Fl a
|
|
The guest's local APIC is configured in xAPIC mode.
|
|
The xAPIC mode is the default setting so this option is redundant.
|
|
It will be deprecated in a future version.
|
|
.It Fl A
|
|
Generate ACPI tables.
|
|
Required for
|
|
.Fx Ns /amd64
|
|
guests.
|
|
.It Fl b
|
|
Enable a low-level console device supported by
|
|
.Fx
|
|
kernels compiled with
|
|
.Cd "device bvmconsole" .
|
|
This option will be deprecated in a future version.
|
|
.It Fl c Ar numcpus
|
|
Number of guest virtual CPUs.
|
|
The default is 1 and the maximum is 16.
|
|
.It Fl C
|
|
Include guest memory in core file.
|
|
.It Fl e
|
|
Force
|
|
.Nm
|
|
to exit when a guest issues an access to an I/O port that is not emulated.
|
|
This is intended for debug purposes.
|
|
.It Fl g Ar gdbport
|
|
For
|
|
.Fx
|
|
kernels compiled with
|
|
.Cd "device bvmdebug" ,
|
|
allow a remote kernel kgdb to be relayed to the guest kernel gdb stub
|
|
via a local IPv4 address and this port.
|
|
This option will be deprecated in a future version.
|
|
.It Fl h
|
|
Print help message and exit.
|
|
.It Fl H
|
|
Yield the virtual CPU thread when a HLT instruction is detected.
|
|
If this option is not specified, virtual CPUs will use 100% of a host CPU.
|
|
.It Fl l Ar lpcdev Ns Op , Ns Ar conf
|
|
Allow devices behind the LPC PCI-ISA bridge to be configured.
|
|
The only supported devices are the TTY-class devices
|
|
.Ar com1
|
|
and
|
|
.Ar com2
|
|
and the boot ROM device
|
|
.Ar bootrom .
|
|
.It Fl m Ar memsize Ns Op Ar K|k|M|m|G|g|T|t
|
|
Guest physical memory size in bytes.
|
|
This must be the same size that was given to
|
|
.Xr bhyveload 8 .
|
|
.Pp
|
|
The size argument may be suffixed with one of K, M, G or T (either upper
|
|
or lower case) to indicate a multiple of kilobytes, megabytes, gigabytes,
|
|
or terabytes.
|
|
If no suffix is given, the value is assumed to be in megabytes.
|
|
.Pp
|
|
.Ar memsize
|
|
defaults to 256M.
|
|
.It Fl p Ar vcpu:hostcpu
|
|
Pin guest's virtual CPU
|
|
.Em vcpu
|
|
to
|
|
.Em hostcpu .
|
|
.It Fl P
|
|
Force the guest virtual CPU to exit when a PAUSE instruction is detected.
|
|
.It Fl s Ar slot,emulation Ns Op , Ns Ar conf
|
|
Configure a virtual PCI slot and function.
|
|
.Pp
|
|
.Nm
|
|
provides PCI bus emulation and virtual devices that can be attached to
|
|
slots on the bus.
|
|
There are 32 available slots, with the option of providing up to 8 functions
|
|
per slot.
|
|
.Bl -tag -width 10n
|
|
.It Ar slot
|
|
.Ar pcislot[:function]
|
|
.Ar bus:pcislot:function
|
|
.Pp
|
|
The
|
|
.Ar pcislot
|
|
value is 0 to 31.
|
|
The optional
|
|
.Ar function
|
|
value is 0 to 7.
|
|
The optional
|
|
.Ar bus
|
|
value is 0 to 255.
|
|
If not specified, the
|
|
.Ar function
|
|
value defaults to 0.
|
|
If not specified, the
|
|
.Ar bus
|
|
value defaults to 0.
|
|
.It Ar emulation
|
|
.Bl -tag -width 10n
|
|
.It Li hostbridge | Li amd_hostbridge
|
|
.Pp
|
|
Provide a simple host bridge.
|
|
This is usually configured at slot 0, and is required by most guest
|
|
operating systems.
|
|
The
|
|
.Li amd_hostbridge
|
|
emulation is identical but uses a PCI vendor ID of
|
|
.Li AMD .
|
|
.It Li passthru
|
|
PCI pass-through device.
|
|
.It Li virtio-net
|
|
Virtio network interface.
|
|
.It Li virtio-blk
|
|
Virtio block storage interface.
|
|
.It Li virtio-rnd
|
|
Virtio RNG interface.
|
|
.It Li ahci-cd
|
|
AHCI controller attached to an ATAPI CD/DVD.
|
|
.It Li ahci-hd
|
|
AHCI controller attached to a SATA hard-drive.
|
|
.It Li uart
|
|
PCI 16550 serial device.
|
|
.It Li lpc
|
|
LPC PCI-ISA bridge with COM1 and COM2 16550 serial ports and a boot ROM.
|
|
The LPC bridge emulation can only be configured on bus 0.
|
|
.El
|
|
.It Op Ar conf
|
|
This optional parameter describes the backend for device emulations.
|
|
If
|
|
.Ar conf
|
|
is not specified, the device emulation has no backend and can be
|
|
considered unconnected.
|
|
.Pp
|
|
Network devices:
|
|
.Bl -tag -width 10n
|
|
.It Ar tapN Ns Op , Ns Ar mac=xx:xx:xx:xx:xx:xx
|
|
.It Ar vmnetN Ns Op , Ns Ar mac=xx:xx:xx:xx:xx:xx
|
|
.Pp
|
|
If
|
|
.Ar mac
|
|
is not specified, the MAC address is derived from a fixed OUI and the
|
|
remaining bytes from an MD5 hash of the slot and function numbers and
|
|
the device name.
|
|
.Pp
|
|
The MAC address is an ASCII string in
|
|
.Xr ethers 5
|
|
format.
|
|
.El
|
|
.Pp
|
|
Block storage devices:
|
|
.Bl -tag -width 10n
|
|
.It Pa /filename Ns Oo , Ns Ar block-device-options Oc
|
|
.It Pa /dev/xxx Ns Oo , Ns Ar block-device-options Oc
|
|
.El
|
|
.Pp
|
|
The
|
|
.Ar block-device-options
|
|
are:
|
|
.Bl -tag -width 8n
|
|
.It Li nocache
|
|
Open the file with
|
|
.Dv O_DIRECT .
|
|
.It Li direct
|
|
Open the file using
|
|
.Dv O_SYNC .
|
|
.It Li ro
|
|
Force the file to be opened read-only.
|
|
.It Li sectorsize= Ns Ar logical Ns Oo / Ns Ar physical Oc
|
|
Specify the logical and physical sector sizes of the emulated disk.
|
|
The physical sector size is optional and is equal to the logical sector size
|
|
if not explicitly specified.
|
|
.El
|
|
.Pp
|
|
TTY devices:
|
|
.Bl -tag -width 10n
|
|
.It Li stdio
|
|
Connect the serial port to the standard input and output of
|
|
the
|
|
.Nm
|
|
process.
|
|
.It Pa /dev/xxx
|
|
Use the host TTY device for serial port I/O.
|
|
.El
|
|
.Pp
|
|
Boot ROM device:
|
|
.Bl -tag -width 10n
|
|
.It Pa romfile
|
|
Map
|
|
.Ar romfile
|
|
in the guest address space reserved for boot firmware.
|
|
.El
|
|
.Pp
|
|
Pass-through devices:
|
|
.Bl -tag -width 10n
|
|
.It Ns Ar slot Ns / Ns Ar bus Ns / Ns Ar function
|
|
Connect to a PCI device on the host at the selector described by
|
|
.Ar slot ,
|
|
.Ar bus ,
|
|
and
|
|
.Ar function
|
|
numbers.
|
|
.El
|
|
.Pp
|
|
Guest memory must be wired using the
|
|
.Fl S
|
|
option when a pass-through device is configured.
|
|
.Pp
|
|
The host device must have been reserved at boot-time using the
|
|
.Va pptdev
|
|
loader variable as described in
|
|
.Xr vmm 4 .
|
|
.El
|
|
.It Fl S
|
|
Wire guest memory.
|
|
.It Fl u
|
|
RTC keeps UTC time.
|
|
.It Fl U Ar uuid
|
|
Set the universally unique identifier
|
|
.Pq UUID
|
|
in the guest's System Management BIOS System Information structure.
|
|
By default a UUID is generated from the host's hostname and
|
|
.Ar vmname .
|
|
.It Fl w
|
|
Ignore accesses to unimplemented Model Specific Registers (MSRs).
|
|
This is intended for debug purposes.
|
|
.It Fl W
|
|
Force virtio PCI device emulations to use MSI interrupts instead of MSI-X
|
|
interrupts.
|
|
.It Fl x
|
|
The guest's local APIC is configured in x2APIC mode.
|
|
.It Fl Y
|
|
Disable MPtable generation.
|
|
.It Ar vmname
|
|
Alphanumeric name of the guest.
|
|
This should be the same as that created by
|
|
.Xr bhyveload 8 .
|
|
.El
|
|
.Sh SIGNAL HANDLING
|
|
.Nm
|
|
deals with the following signals:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It SIGTERM
|
|
Trigger ACPI poweroff for a VM
|
|
.El
|
|
.Sh EXIT STATUS
|
|
Exit status indicates how the VM was terminated:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It 0
|
|
rebooted
|
|
.It 1
|
|
powered off
|
|
.It 2
|
|
halted
|
|
.It 3
|
|
triple fault
|
|
.El
|
|
.Sh EXAMPLES
|
|
The guest operating system must have been loaded with
|
|
.Xr bhyveload 8
|
|
or a similar boot loader before
|
|
.Xr bhyve 4
|
|
can be run.
|
|
.Pp
|
|
To run a virtual machine with 1GB of memory, two virtual CPUs, a virtio
|
|
block device backed by the
|
|
.Pa /my/image
|
|
filesystem image, and a serial port for the console:
|
|
.Bd -literal -offset indent
|
|
bhyve -c 2 -s 0,hostbridge -s 1,lpc -s 2,virtio-blk,/my/image \\
|
|
-l com1,stdio -A -H -P -m 1G vm1
|
|
.Ed
|
|
.Pp
|
|
Run a 24GB single-CPU virtual machine with three network ports, one of which
|
|
has a MAC address specified:
|
|
.Bd -literal -offset indent
|
|
bhyve -s 0,hostbridge -s 1,lpc -s 2:0,virtio-net,tap0 \\
|
|
-s 2:1,virtio-net,tap1 \\
|
|
-s 2:2,virtio-net,tap2,mac=00:be:fa:76:45:00 \\
|
|
-s 3,virtio-blk,/my/image -l com1,stdio \\
|
|
-A -H -P -m 24G bigvm
|
|
.Ed
|
|
.Pp
|
|
Run an 8GB quad-CPU virtual machine with 8 AHCI SATA disks, an AHCI ATAPI
|
|
CD-ROM, a single virtio network port, an AMD hostbridge, and the console
|
|
port connected to an
|
|
.Xr nmdm 4
|
|
null-modem device.
|
|
.Bd -literal -offset indent
|
|
bhyve -c 4 \\
|
|
-s 0,amd_hostbridge -s 1,lpc \\
|
|
-s 1:0,ahci-hd,/images/disk.1 \\
|
|
-s 1:1,ahci-hd,/images/disk.2 \\
|
|
-s 1:2,ahci-hd,/images/disk.3 \\
|
|
-s 1:3,ahci-hd,/images/disk.4 \\
|
|
-s 1:4,ahci-hd,/images/disk.5 \\
|
|
-s 1:5,ahci-hd,/images/disk.6 \\
|
|
-s 1:6,ahci-hd,/images/disk.7 \\
|
|
-s 1:7,ahci-hd,/images/disk.8 \\
|
|
-s 2,ahci-cd,/images/install.iso \\
|
|
-s 3,virtio-net,tap0 \\
|
|
-l com1,/dev/nmdm0A \\
|
|
-A -H -P -m 8G
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr bhyve 4 ,
|
|
.Xr nmdm 4 ,
|
|
.Xr vmm 4 ,
|
|
.Xr ethers 5 ,
|
|
.Xr bhyvectl 8 ,
|
|
.Xr bhyveload 8
|
|
.Sh HISTORY
|
|
.Nm
|
|
first appeared in
|
|
.Fx 10.0 .
|
|
.Sh AUTHORS
|
|
.An Neel Natu Aq Mt neel@freebsd.org
|
|
.An Peter Grehan Aq Mt grehan@freebsd.org
|