[libvirt] libvirt regression in managing qemu-system-arm

I've been experimenting with using libvirt to manage qemu-system-arm VMs, and it's working fine in F12. However, in F13Alpha, the wrong arguments are passed to the emulator -- I suspect that the x86 platform versions of qemu accept new argument formats, and qemu-system-arm hasn't been updated. The versions in F13alpha are qemu-system-arm 0.12.3 and libvirt 0.7.6. Could this be reverted, or the old code conditionally invoked? Sample ARM root filesystem, domain XML, and kernel are located at http://cdot.senecac.on.ca/arm -- as well as a wrapper script for /usr/bin/qemu-system-arm that edits the command-line arguments. Thanks for considering this-- -Chris