[vfio-users] Cannot fix Error 43 for GTX 680 passed through to win 10 guest

[root at yoshi.dynu.com]

Is there any point in editing the gtx680s bios and change the device id 
there?

i tried the patch to spoof the devID but somehow managed to mess up my 
hosts libraries really bad... need to reinstall and start clean.

i use q35 system for now since with 440fx the guest is not restarting 
and it takes ages for the initial install/setup. But i am willing to try 
again with 440fx.

Cheers


> I've looked through your previous logs and config and I don't have any
> ideas what's wrong.  Passing a GTX680 ROM to a card that's hard mod'ed
> to report itself as a K2 is pointless, PCI ROMs include the PCI IDs 
> that
> their intended for, if they don't match, they don't get run.  As I
> mention in the other thread, GRID cards only run as secondary GPUs in
> the VM, which you appear to be doing.  They should be completely
> independent of the ROM and there's no need to use x-vga with them,
> regardless of using OVMF or Seabios.
> 
> I generally only see Code 12 errors when using q35 with the GPU behind
> an ioh root port, and even then, only with win7 (though I've only tried
> win8.1, not win10).  Nouveau freaking out in the guest doesn't really
> surprise me, most people use the nvidia driver, because why pass a
> high-end GPU to a VM only to cripple it with nouveau.
> 
> Sorry, not very helpful, but I am looking at the logs you're posting 
> and
> nothing is jumping out.  Thanks,
> 
> Alex