Date: Wed, 3 May 2017 21:44:04 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r317777 - head/usr.sbin/bhyve Message-ID: <201705032144.v43Li4ns083507@repo.freebsd.org>
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Author: glebius Date: Wed May 3 21:44:04 2017 New Revision: 317777 URL: https://svnweb.freebsd.org/changeset/base/317777 Log: Improve documentation of fbuf device. Submitted by: novel Reviewed by: grehan, bcr Differential Revision: https://reviews.freebsd.org/D10014 Modified: head/usr.sbin/bhyve/bhyve.8 Modified: head/usr.sbin/bhyve/bhyve.8 ============================================================================== --- head/usr.sbin/bhyve/bhyve.8 Wed May 3 21:04:32 2017 (r317776) +++ head/usr.sbin/bhyve/bhyve.8 Wed May 3 21:44:04 2017 (r317777) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd April 27, 2017 +.Dd May 3, 2017 .Dt BHYVE 8 .Os .Sh NAME @@ -49,10 +49,13 @@ virtual machine. 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 +If not using a boot ROM, the guest operating system must be loaded with .Xr bhyveload 8 or a similar boot loader before running -.Nm . +.Nm , +otherwise, it is enough to run +.Nm +with a boot ROM of choice. .Pp .Nm runs until the guest operating system reboots or an unhandled hypervisor @@ -191,7 +194,7 @@ The LPC bridge emulation can only be con .It Li fbuf Raw framebuffer device attached to VNC server. .It Li xhci -XHCI USB controller. +eXtensible Host Controller Interface (xHCI) USB controller. .El .It Op Ar conf This optional parameter describes the backend for device emulations. @@ -304,38 +307,75 @@ Emergency write is advertised, but no-op .El .El .Pp -Raw framebuffer device: +Framebuffer devices: +.Bl -tag -width 10n +.It Oo rfb= Ns Oo Ar IP: Oc Ns Ar port Oc Ns Oo ,w= Ns Ar width Oc Ns Oo ,h= Ns Ar height Oc Ns Oo ,vga= Ns Ar vgaconf Oc Ns Oo Ns ,wait Oc +.Bl -tag -width 8n +.It Ar IP:port +An +.Ar IP +address and a +.Ar port +VNC should listen on. +The default is to listen on localhost IPv4 address and default VNC port 5900. +Listening on an IPv6 address is not supported. +.It Ar width No and Ar height +A display resolution, width and height, respectively. +If not specified, a default resolution of 1024x768 pixels will be used. +Minimal supported resolution is 640x480 pixels, +and maximum is 1920x1200 pixels. +.It Ar vgaconf +Possible values for this option are +.Dq io +(default), +.Dq on +, and +.Dq off . +PCI graphics cards have a dual personality in that they are +standard PCI devices with BAR addressing, but may also +implicitly decode legacy VGA I/O space +.Pq Ad 0x3c0-3df +and memory space +.Pq 64KB at Ad 0xA0000 . +The default +.Dq io +option should be used for guests that attempt to issue BIOS +calls which result in I/O port queries, and fail to boot if I/O decode is disabled. +.Pp +The +.Dq on +option should be used along with the CSM BIOS capability in UEFI +to boot traditional BIOS guests that require the legacy VGA I/O and +memory regions to be available. +.Pp +The +.Dq off +option should be used for the UEFI guests that assume that +VGA adapter is present if they detect the I/O ports. +An example of such a guest is +.Ox +in UEFI mode. .Pp -.Oo wait Oc Ns Oo ,vga= Ns Ar <on|io|off> Oc Oo ,rfb= Ns Oo Ar IP: Oc Ns Ar port Oc Ns Oo ,w= Ns Ar w Oc Ns Oo ,h= Ns Ar h Oc -.Bl -tag -width [vga=on|io|off] +Please refer to the +.Nm +.Fx +wiki page +.Pq Lk https://wiki.freebsd.org/bhyve +for configuration notes of particular guests. .It wait -Wait for a VNC client connection before booting the virtual machine. -The default is not to wait. -.It vga= Ns Ar on|io|off -Enable VGA emulation. -The default is -.Va io -mode: VGA is enabled, but only I/O ports are available, -no VGA memory is provided. -.It rfb= Ns Oo Ar IP: Oc Ns Ar port -Set the VNC server to listen at -.Va IP:port . -The default is to listen on localhost IPv4 address and default VNC port 5900. -Listening on a IPv6 address is not supported. -.It w= Ns Ar width -Set framebuffer width to -.Ar width . -The default width is 1920. -.It h= Ns Ar height -Set framebuffer height to -.Ar height . -The default height is 1080. +Instruct +.Nm +to only boot upon the initiation of a VNC connection, simplifying the installation +of operating systems that require immediate keyboard input. +This can be removed for post-installation use. +.El .El .Pp -XHCI USB controller device: -.Bl -tag -.It Ar tablet -Emulate USB tablet mouse. +xHCI USB devices: +.Bl -tag -width 10n +.It Li tablet +A USB tablet device which provides precise cursor synchronization +when using VNC. .El .El .It Fl S @@ -385,11 +425,12 @@ halted triple fault .El .Sh EXAMPLES -The guest operating system must have been loaded with +If not using a boot ROM, the guest operating system must have been loaded with .Xr bhyveload 8 or a similar boot loader before .Xr bhyve 4 can be run. +Otherwise, the boot loader is not needed. .Pp To run a virtual machine with 1GB of memory, two virtual CPUs, a virtio block device backed by the @@ -427,6 +468,21 @@ cd:/images/install.iso \\ -l com1,/dev/nmdm0A \\ -A -H -P -m 8G .Ed +.Pp +Run a UEFI virtual machine with a display resolution of 800 by 600 pixels +that can be accessed via VNC at: 0.0.0.0:5900. +.Bd -literal -offset indent +bhyve -c 2 -m 4G -w -H \\ + -s 0,hostbridge \\ + -s 3,ahci-cd,/path/to/uefi-OS-install.iso \\ + -s 4,ahci-hd,disk.img \\ + -s 5,virtio-net,tap0 \\ + -s 29,fbuf,tcp=0.0.0.0:5900,w=800,h=600,wait \\ + -s 30,xhci,tablet \\ + -s 31,lpc -l com1,stdio \\ + -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \\ + uefivm +.Ed .Sh SEE ALSO .Xr bhyve 4 , .Xr nmdm 4 ,
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