[vfio-users] GPU Passthrough, 2 GPUs to different virtual machines

[Sascha Fröhlich]

I am loading the appropiate vfio modules at boot time before the nvidia
module and I use efifb=off as kernel parameter. lspci -nnk states that the
2 cards are correctly claimed by vfio-pci.

Additionally, I tried to use the driver_override approach mentioned in the
blog post, but to no avail.

2017-12-31 13:21 GMT+01:00 Torbjorn Jansson <
torbjorn.jansson at mbox200.swipnet.se>:

> On 2017-12-31 12:25, Sascha Fröhlich wrote:
>
>> Hi,
>>
>> I am trying to get the following setup with a Xeon E5/ASUS X99-A II to
>> work:
>>
>> First slot:      GTX 1060     -> VM 1
>> Second slot: GTX 1070 -> VM 2
>> Third slot:     GT 710         -> Host
>>
>> This is the latest ArchLinux. I had to use the propietary NVIDIA drivers
>> and an additional Xorg configuration for the host GPU, because nouveau
>> would flicker and crash. No need to blacklist anything.
>>
>> IOMMU and VFIO works fine though, lspci -nn -k reports the two GTX GPUs
>> using vfio-pci:
>> https://gist.github.com/anonymous/89ebd0e18464cef3c5dde6897c39eb5f
>>
>>
> did you make sure that the proprietary nvidia driver is never
> attached/loaded for the 2 cards you intend to forward to a vm?
> see: http://vfio.blogspot.se/2015/05/vfio-gpu-how-to-series-part-
> 3-host.html
>
>
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