[vfio-users] [help] 2 identical GPUs in Arch

[Garland Key]

Thanks for the reply.  I haven't tried the script yet.  I'm going to work
on it more later tonight.  I have two Nvidia GTX 970s.

On Fri, Feb 19, 2016, 4:43 PM Ben J <btpprograms at gmail.com> wrote:

> For your latter question, it doesn't seem like you should need to modify
> it as his original script already generically finds all GPUs. Did it not
> work when you tried it? Also, what type of cards are you using? If they're
> NVIDIA with nvidia drivers then I doubt that script will work for you.
> I'm using the following guide:
> https://vfio.blogspot.com/2015/05/vfio-gpu-how-to-series-part-3-host.html.
> I'm having trouble adapting some of the Fedora focused instructions for use
> in Arch.
>
> *1. Dracut*
> Dracut isn't used in Arch but the mkinitcpio is. You're asked to insert *add_drivers+="vfio
> vfio_iommu_type1 vfio_pci vfio_virqfd" *in:
> */etc/dracut.conf.d/local.conf*.  Farther down, I'm supposed to insert *install_items+="/sbin/vfio-pci-override-vga.sh
> /usr/bin/find /usr/bin/dirname" *in: */etc/dracut.conf.d/local.conf*.
>
> Should I instead add these lines to a modprobe.d conf file or should I add
> it to the modules line in */etc/mkinitcpio.conf*?
>
> *2. driver_override*
> My bash-foo isn't very good and I need to adapt the following script (see
> below) so that it points to the correct directories. In Arch, the directory
> for the GPU (02:00.0) and GPU audio (02:00.1) are here:
> */sys/devices/pci0000:00/0000:00:02.0/0000:02:00.0/* &
> */sys/devices/pci0000:00/0000:00:02.0/0000:02:00.1/*
>
>
>
>
>
>
>
> *    #!/bin/sh    DEVS="0000:02:00.0 0000:02:00.1"    for DEV in $DEVS;
> do echo "vfio-pci" > /sys/bus/pci/devices/$DEV/driver_override    done
> modprobe -i vfio-pci*
>
> Hope to hear from you soon!
>
> Best,
> Garland Key
>
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