QEMU 1.3 supports new device pass-through technology
After six years of work, the official QEMU now includes all the changes that have been in QEMU-KVM, a fork modified to support KVM virtualisation. The news comes as part of the announcement of the release of QEMU 1.3. This should allow the KVM developers to drop their QEMU fork. The QEMU fork has been used by default together with the KVM hypervisor in the Linux kernel to virtualise PC hardware for operating systems; some distributions already use QEMU and KVM already, rather than QEMU-KVM.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump