[vfio-users] NVIDIA GPU Passthrough to Win10 - Driver Disabled (Code 43)

[Samuel Holland]

On 07/25/2016 04:29 PM, Steven Bell wrote:
> On Mon, Jul 25, 2016 at 5:23 PM, Philip Abernethy wrote:
>> Did you make sure that the card actually supports UEFI mode?
>> Because my GTX 660 didn't. But the OS (Arch in my case) would
>> happily boot with the UEFI set to UEFI-only mode and the card would
>> silently run in legacy mode. I had to update the card's ROM. I used
>> nvflash to check the card's UEFI capability and update the ROM.
>
> Interesting. I'll give the nvflash a try and post back my results.

Note that you do not need to actually flash a new ROM to the card to use
it with qemu/KVM. You can just specify a path to the ROM file in your
XML. This is much safer than flashing your card, especially if there is
no UEFI-capable firmware available for your specific video card model.

Samuel