Issues with GPU passthrough / amdgpu

[enmus]

@tomasv

The VM is created with 2GB of RAM, but as soon as I attach the PCI devices, it refuses to boot with more than 1198MB.

I think I have see this

Win10 VM now trying to boot from USB controller?

I have a Win10 VM that used to work just fine but no longer boots after the recent updates. I have restored from backup almost every version going back in history and none of them boot any more, even from backups that I previously restored from before and know that they worked just fine. Something in Qubes/Xen must have changed recently so that Qubes is not finding the proper Windows boot record/partition. What I see during boot is the window frame opens and display’s the following: SeaBIOS (…

But I also think I’ve seen some other solution to this here, which I can’t find at the moment.

VM with USB controller unable to start with more than 2200MB memory