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

[Garland Key]

Hey everyone,

I just wanted to let you know that I'm now successfully using gpu
passthrough and it's great!  Thanks so much to everyone who took the time
to help me out.  Unfortunately, I was never able to get it to work on
Arch.  I decided to give a new distro a try for the first time in 5 years
(Fedora 23).  I had forgotten how nice it is to have everything curated for
you with secure configurations by default.  I followed the instructions in
the blog and it worked on the first try.

Best,
David

On Tue, Mar 1, 2016 at 11:51 AM Garland Key <david.garland.key at gmail.com>
wrote:

> Thank you! lspci -nnk shows that my second gpu is bound to vfio-pci!  I'll
> move on to wrapping this up.
>
> On Tue, Mar 1, 2016 at 11:46 AM sL1pKn07 SpinFlo <sl1pkn07 at gmail.com>
> wrote:
>
>> 2016-03-01 10:00 GMT+01:00 Garland Key <david.garland.key at gmail.com>:
>> > @sL1pKn07 SpinFlo
>> >
>> > I've started working on this again and will hopefully be able to finish
>> it
>> > today.  The script
>> > that runs successfully prevents my 2nd gpu from binding to the nvidia
>> > driver.  When I do:
>> > dmesg | grep -i vfio, it only shows that the driver has loaded but
>> doesn't
>> > indicate that
>> > anything is bound to it.
>>
>> yes
>>
>> └───╼  dmesg | grep -i vfio
>> [    6.876863] VFIO - User Level meta-driver version: 0.3
>>
>> but:
>>
>> └───╼  lspci -nnk
>> ----snip----
>> 07:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK110B
>> [GeForce GTX TITAN Black] [10de:100c] (rev a1)
>>        Subsystem: Gigabyte Technology Co., Ltd Device [1458:3641]
>>        Kernel driver in use: vfio-pci
>>        Kernel modules: nouveau, nvidia
>> 07:00.1 Audio device [0403]: NVIDIA Corporation GK110 HDMI Audio
>> [10de:0e1a] (rev a1)
>>        Subsystem: Gigabyte Technology Co., Ltd Device [1458:3641]
>>        Kernel driver in use: vfio-pci
>>        Kernel modules: snd_hda_intel
>> ----snip----
>> 13:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104
>> [GeForce GTX 770] [10de:1184] (rev a1)
>>        Subsystem: eVga.com. Corp. Device [3842:2774]
>>        Kernel driver in use: nvidia
>>        Kernel modules: nouveau, nvidia
>> 13:00.1 Audio device [0403]: NVIDIA Corporation GK104 HDMI Audio
>> Controller [10de:0e0a] (rev a1)
>>        Subsystem: eVga.com. Corp. Device [3842:2774]
>>        Kernel driver in use: snd_hda_intel
>>        Kernel modules: snd_hda_intel
>> ----snip----
>>
>> >
>> > You said that there were zero configurations involving modprobe.  Does
>> this
>> > include
>> > loading the following modules in initramfs? vfio vfio_iommu_type1
>> vfio_pci
>> > vfio_virqfd
>> >
>> yes, Zero vfio/pci stub configuration, include grub, initramfs,
>> modules.load.d, modprobe.d, etc
>>
>> only need if have problems with unsafe interrupts (see my other mails
>> in this topic)
>>
>> greetings
>>
>
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