[vfio-users] Arch user following http://vfio.blogspot.com instructions [please help]

Garland Key david.garland.key at gmail.com
Thu Apr 14 14:29:12 UTC 2016

I'm aware of the wiki and the other site.  Neither of them review this
issue at the .moment.  The person rewriting the wiki doesnt have experience
w the two identical gpu issue so im hoping to solve this and provide the
solution that worked.

Sending from my phone.  Please pardon the mistakes.

On Thu, Apr 14, 2016, 7:47 AM thibaut noah <thibaut.noah at gmail.com> wrote:

> There is not just the forum, you also have the wiki (i admit it is a bit
> outdated too but someone in the mailing list is working on rewriting it) :
> https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF
> There is also a guy who made a video and a huge post on a forum :
> http://www.se7ensins.com/forums/threads/how-to-setup-a-gaming-virtual-machine-with-gpu-passthrough-qemu-kvm-libvirt-and-vfio.1371980/
> Modules are indeed in mkinit, read the wiki ;)
> 2016-04-14 5:00 GMT+02:00 Garland Key <david.garland.key at gmail.com>:
>> Hey there,
>> 1. I followed the instructions listed on this blog (
>> http://vfio.blogspot.com) and got my current machine to run a windows 10
>> vm with pci passthrough perfectly.  I've now switched back to Arch (my
>> default OS) and want to try to adapt these instructions now that I know it
>> will work.
>> 2. I have 2 identical GPUs, so I have to follow the special instructions
>> outlined in
>> https://vfio.blogspot.com/2015/05/vfio-gpu-how-to-series-part-3-host.html.
>> Again, this worked on Fedora, so to my knowledge it should work on Arch too.
>> 3. Please do not refer me to the outdated Arch forums with 680+ posts
>> that has now been closed.  That thread should be deleted as it is unwieldy
>> and useless. I have two Nvidia GTX 970s, but again, it worked on Fedora 23.
>> I'm throwing this out there due to other advice that I have been given in
>> the past.
>> 4. Dracut isn't used in Arch but mkinitcpio is. You're asked to insert
>> add_drivers+="vfio vfio_iommu_type1 vfio_pci vfio_virqfd" in:
>> /etc/dracut.conf.d/local.conf.
>> Should I instead add MODULES="vfio vfio_iommu_type1 vfio_pci vfio_virqfd"
>> to mkinitcpio.conf?
>> 5. 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 install_items+="/sbin/vfio-pci-override-vga.sh
>> /usr/bin/find /usr/bin/dirname" to /etc/modprobe.d/vfio.conf?
>> Any help you can provide is greatly appreciated.
>> Best,
>> Garland Key
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>> vfio-users at redhat.com
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