KVM on Slackware 14.0

Download from slackbuilds.org following packages and dependencies:
qemu-kvm
virt-manager
libvirt
  yajl
  virtinst
  urlgrabber
  gnome-python
  gtk-vnc
    vala

Install all packages the following way:
tar -xvzf pkg.tar.gz
mv pkg-1.0.tar.gz pkg/
./pkg.SlackBuild
installpkg /tmp/pkg-1.0.tgz

* To install yajl, pkg must be renamed:
mv lloyd-yajl-2.0.4-0-gfee1ebe.tar.gz lloyd-yajl-2.0.4-0-fee1ebef.tar.gz

After installation add following lines to /etc/rc.d/rc.local:
/sbin/modprobe kvm
/sbin/modprobe kvm_intel
libvirtd -f /etc/libvirt/libvirtd.conf -d

Start just added lines from rc.local and run virt-manager

* If virt-manager displays an error on startup about D-BUS, try this command:
export DBUS_SESSION_BUS_ADDRESS=""

* Optional: create bridge

Network Bridge on Slackware

Add following lines to /etc/rc.d/rc.local:

ifconfig eth0 inet 0.0.0.0
ifconfig eth0 up
brctl addbr br0
brctl addif br0 eth0
dhcpcd br0