Experimenty v Metacentru:

https://wiki.metacentrum.cz/metawiki/U%C5%BEivatel:Dexter#Spusteni_Meta_vypocetniho_domU_pres_KVM

kvm -name nympha17-1 -smp 8 -m 10240 -hda /dev/vg00/root1 -hdb /dev/vg00/swap1\
 -hdc /dev/vg00/cache1 -hdd /dev/vg00/scratch1 -kernel /boot/vmlinuz-3.2.0-0.bpo.4-amd64\
 -initrd /boot/initrd.img-3.2.0-0.bpo.4-amd64 -append root=/dev/sda\
 -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown\
 -nographic -daemonize

====

yum install libvirt virt-manager qemu-system-x86 libvirt-daemon-kvm
systemctl start libvirtd

usermod -a -G kvm valtri

cat > /etc/polkit-1/rules.d/80-libvirt.rules <<EOF
polkit.addRule(function(action, subject) {
  if (action.id == "org.libvirt.unix.manage" && subject.local && subject.active && subject.isInGroup("kvm")) {
      return polkit.Result.YES;
  }
});
EOF

cat > /etc/qemu/bridge.conf <<EOF
allow virbr0 br0
EOF

============

apt-get install libvirt-bin
# virt-top

cat >> /etc/network/interfaces <<EOF
auto lo br0

iface lo inet loopback
iface eth0 inet manual
iface eth1 inet manual

iface br0 inet dhcp
	bridge_fd 0
	bridge_maxwait 0
        bridge_ports eth0 eth1
	#bridge_ports regex eth*
	bridge_stp off
EOF

# ověření FW
tail /proc/sys/net/bridge/*
 iptables -L  FORWARD

net.ipv4.ip_forward = 1
net.ipv6.ip_forward = 1
#?
#net.bridge.bridge-nf-call-ip6tables = 0
#net.bridge.bridge-nf-call-iptables = 0
#net.bridge.bridge-nf-call-arptables = 0

=======

Host:

virtio driver v initrd (virtio_pci, virtio_blk)
==> hadory OK

 <interface type='bridge'>
    <source bridge='br0'/>
<!--
    <mac address='00:16:3e:1a:b3:4a'/>
-->
    <model type='virtio'/>
 </interface>


cat > ./kvm-volume.xml << EOF
<volume>
  <name>sparse.img</name>
  <capacity unit="G">10</capacity>
</volume>
EOF
virsh vol-create default kvm-volume.xml

virsh define kvm-host1.xml

#virsh edit pokus1