Comment 5 for bug 1640093

Long time debugging short:

Libvrit decides which 'accel' value should be passed to qemu command line by reading 'domain type' from xml (if kvm => accel=kvm, if qemu => accel=tcg).

Qemu parses command line and if it contains 'enable-kvm' it add/set accel key value to kvm.

In Ubuntu 'kvm' is a wrapper which append '-enable-kvm' key to qemu command line. In RH is not.

My proposal is change virt_type to kvm in nova.conf