I have successfully launched xpenology under libvirt + qemu.
Installation images and an example config for libvirt is here:
https://drive.google.com/folderview?id=0B5tpWhEINjUOR0t6X2V4UjNkcXc&usp=sharing
My configuration:
hp microserver n40l
Debian jessie
libvir 0.9.12
QEMU 1.1.2
These images contain the following changes:
kernel modules: e1000.ko, r8168.ko, virtio_balloon.ko, virtio_blk.ko, virtio.ko, virtio_net.ko, virtio_pci.ko, virtio_ring.ko
note for virtio_blk.ko - this module does not works as expected, autoloading disabled.
For revision 3211 you may use original pat file from synology.