install virtio drivers on FreeBSD 9.0 64bit VM

Here’s an explanation of how to install virtio drivers on FreeBSD9.0 VM.

just referred to http://www.area536.com/projects/freebsd-as-a-kvm-guest-using-virtio/

many thanks!

FreeBSD 9.0 VM is running within Ubuntu 13.04 KVM host.

KVM host info

root@ubuntu-1:~# tail -1 /etc/lsb-release DISTRIB_DESCRIPTION="Ubuntu 13.04" # uname -ri 3.8.0-23-generic x86_64 # kvm --version W: kvm binary is deprecated, please use qemu-system-x86_64 instead QEMU emulator version 1.4.0 (Debian 1.4.0+dfsg-1expubuntu4), Copyright (c) 2003-2008 Fabrice Bellard # libvirtd --version libvirtd (libvirt) 1.0.2

on the BSD VM

bsd# cp /usr/share/examples/cvsup/standard-supfile /root/ bsd# cd /root/

edit standard-supfile

from

*default host=CHANGE_THIS.FreeBSD.org

to

*default host=cvsup10.FreeBSD.org

build virtio drivers

bsd# csup ./standard-supfile # cd  /usr/ports/emulators/virtio-kmod/ # make # make install # make clean

create a loader.conf file to load virtio drivers

# cat /boot/loader.conf virtio_load="YES" virtio_pci_load="YES" virtio_blk_load="YES" if_vtnet_load="YES" virtio_balloon_load="YES"

reboot the VM to confirm if BSD loads virtio drivers.

# shutdown -r now

after rebooting the OS

# dmesg | grep -i virtio virtio_pci0: <VirtIO PCI Balloon adapter> port 0xc060-0xc07f irq 10 at device 5.0 on pci0 vtballoon0: <VirtIO Balloon Adapter> on virtio_pci0 virtio_pci0: host features: 0x71000002 <EventIdx,RingIndirect,NotifyOnEmpty,StatsVq> virtio_pci0: negotiated features: 0x0

If your VM can load virtio drivers successfuly , edit /etc/rc.conf and /etc/fstab to use virtio drivers

on the BSD VM ( this is for vNIC )

# cat /etc/rc.conf hostname="bsd90" keymap="jp.106.kbd" ifconfig_em0="DHCP" sshd_enable="YES" # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable dumpdev="AUTO" ifconfig_vtnet0_name="em0"

on the BSD VM ( this is for vHDD )

# cat /etc/fstab # Device        Mountpoint      FStype  Options Dump    Pass# #/dev/ada0p2    /               ufs     rw      1       1 /dev/vtbd0p2    /               ufs     rw      1       1 /dev/ada0p3     none            swap    sw      0       0

shutdown the VM

# shutdown –p now

on the KVM host , start virt-manager and change driver of the BSD VM to virtio

vNIC

vHDD

click apply and then start the VM

on the VM

# kldstat Id Refs Address            Size     Name 1   12 0xffffffff80200000 11cdab0  kernel 2    5 0xffffffff813ce000 4e38     virtio.ko 3    1 0xffffffff813d3000 5868     virtio_pci.ko 4    1 0xffffffff813d9000 52d8     virtio_blk.ko 5    1 0xffffffff813df000 ad80     if_vtnet.ko 6    1 0xffffffff813ea000 31f8     virtio_balloon.ko