firewalld and kvm

Hello, I was wondering if anybody could tell me how to set up firewalld together with kvm. For example a fedora 20 host running a centos6.5 guest. The guest is using bridge0 which is connected to eth0. What devices do I need to which zone. Do the virtual devices like vnet1 and vnet2 need to be added to a zone ? I keep running into walls here (firewalls to be precise), the only thing I can find on this subject is 'switch back to iptables'. But I would like to know how to fix this with firewalld. Anybody who has any ideas on this ? Cheers Rob