On 2017-12-31 13:31, Sascha Fröhlich wrote:
2017-12-31 13:21 GMT+01:00 Torbjorn Jansson <
torbjorn.jans...@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
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.
just loading vfio modules is not enough.
you also need to make sure vfio-pci is bound to your cards in question directly
at boot before nvidia module or anything else grabs them.
this is done via module parameter to vfio-pci
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