Intel vGPU - GVT-G

packy2000

Hi,

I am trying to setup GVT-G with the Intel NUC 8th Gen (NUC8i5BEK) which has integrated Iris Plus Graphics 655.

Technically this setup should be okay for GVT-G. I remove the GPU from the host and I can see the Iris Plus Graphics 655 in XCP-ng Center okay, but the GPU cannot be shared with more than one VM. I have updated XCP NG to the latest version.

I am missing something it seems. This appears to be possible, German video showing GVT-G in XCP-NG Center (https://www.youtube.com/watch?v=FW9TPMrdTYc)

Any guidance, things to try, etc would be appreciated.

Thanks!

tony

Any error given when trying to add vGPU or just doesn't come up on the list to choose? Please share screenshots.

packy2000

Hi there,

Thanks and appreciative of the reply. Screenshots as requested from xcp-ng, bios, also pastebin of dmesg and lsmod.

dmesg - https://pastebin.com/kZe2CrUS
lsmod - https://pastebin.com/iwnpybQq

tony

Seems like you need Iris Pro for gvt-g to work.

https://docs.citrix.com/en-us/citrix-hypervisor/graphics/hv-graphics-config.html#intel-gvt-d-and-gvt-g

shoopg

The problem is coffee lake support wasn't added until kernel 5.0+. Since XCP-NG still is on 4.x, there's no coffee lake support.

olivierlambert

What? Are you sure?

shoopg

Yeah, coffee lake support wasn't added until about a year ago. It was added separately from most of the other supported iGPUs. I believe its kernel 5.1 or newer that adds native coffee lake igpu support.