macvtap

http://hekate.homeip.net/2011/06/kvm-macvtap-interface-bridging/

New Autotest usage

1)  get autotest git recursively.

git clone --recursive git://github.com/autotest/autotest.git

2)  cd autotest/client/tests/virt

3) cd kvm  or cd libvirt

4) ./get_started.py

5) change tests.cfg which is in cfg folder

6) cd autotest/client/tests/virt

7) export AUTOTEST_PATH= 
                                            for ex: /home/autotest

8) ./run -t kvm --verbose

    or

   ./run -t libvirt --verbose

Please use ./run -h for more help.