I hope I can work with them some time to improve support! I outlined a few things they would need to do to help support GVM using the amdgpu driver on this page:

https://openmdev.io/index.php/AMDGPU

Ideally some folks who know about amdgpu might consider helping our open source community by adding similar information to that page to the information we added on the Nvidia Open Kernel Modules page:

https://openmdev.io/index.php/OpenRM

If that could be done then we would do our best to add in AMD support to GVM.