What Ubuntu release and libvirt version are you using? The apparmor libvirt-qemu file shipped with maverick (which is where qemu 0.12.5 is shipped) has:
/usr/share/vgabios/** r, /usr/share/seabios/** r,
on lines 67 and 68.
What Ubuntu release and libvirt version are you using? The apparmor libvirt-qemu file shipped with maverick (which is where qemu 0.12.5 is shipped) has:
/usr/ share/vgabios/ ** r, share/seabios/ ** r,
/usr/
on lines 67 and 68.