[ubuntu] QEMU doesn't support spice OpenGL

Hi there,
I'm trying to use KVM on my machine (threadripepr 2950 CPU and AMD WX7100 GPU) running ubuntu 18.04.
I have followed KVM and virtual machine manager and bridge networking procedure and first step was ok.
I have an issue of using OpenGL ( by selecting the option on Display Spice setting).
I found this webpage explained the steps for activation openGL. https://at.projects.genivi.org/wiki/...s+acceleration
Apart of last step verification which is:
[# dmesg | grep gl [drm] virgl 3d acceleration enabled]
the rest of the result was ok.
Would anyone please let me know how I can use and set properly openGL and graphic acceleration on KVM on ubuntu 18.04?

Cheers