Intel HD 620 graphics drivers, how to install in dom0 ?

[Krasi]

Hi everyone, I am having trouble with the graphics and only have 800x600 resolution, tried to add more resolutions using xrandr but I get an error "Failed to get size of gamma for output default" which I figured is due to not having the correct drivers.

Intel appears to have a tool for Fedora to install their drivers but I am not sure how to install it under dom0 considering there is no network access:
https://01.org/linuxgraphics/downloads/intel-graphics-update-tool-linux-os-v2.0.2

Is that my best chance to get my graphics card working and get some higher resolution ? Would you suggest something else or do you know how I can accomplish this ?

I am using Intel Kaby Lake i7-7500U with the integrated HD 620 graphics.

Any help would be appreciated.

Thanks

[Krasi]

Actually I got this resolved. I had to update to kernel 4.8.12 and then edit the EFI partition. I copied the kernel files from /boot to the EFI partition and then modified the xen.cfg file to boot into the 4.8.12 kernel and the graphics are working now.