Hi I want to run netbsd 5.0 with kvm in virt-manager. It works with default option but any network devices is recognized by the netbsd kernel. To enable network with qemu-kvm, we had to disable the acpi and add other options like -tdf, -localtime ... This is an an example who works : http://ghantoos.org/2009/05/12/my-first-shot-of-netbsd/ (An explanation I found is that the new scheduler in netbsd 5.0 cause some problems with virtualization based on VT) Currently, I have not found the way to do it with libvirt (and I don't think it is possible with virt-manager). It be very helpeful if these features can be add to libvirt. Thanks Fabien Georget