QEMU e500 kvm no video and kernel crashing in virtios modules

Hi,
i been attached the log of my issue on Qoriq e5500
when i start qemu-system-ppc64  -cpu e5500 -M ppce500 --enable-kvm -device virtio-gpu-pci  --nodefaults -display gtk and so and so . i have crashes in virtio modules in the VM and continue traces on the host machine.
If is needed more for investigating ask freely .

Note: i use my selfmade kernel this machine dont have a distro kenels and official kernels.


Ciao 
Luigi