[vfio-users] Unable to isolate HDMI device

[LOMBARD Maxime]

Thanks for your explanations.
It's possible to add softdep only for the HDMI ?
I disable nouveau in my .config so there is no module for the card in the host.

Envoyé de mon iPhone

> Le 3 août 2017 à 09:28, Karsten Elfenbein <karsten.elfenbein at gmail.com> a écrit :
> 
> Hi,
> 
> module load order is not set in stone. So softdep might or might not
> be needed. (should be added anyway)
> vfio-pci should only grab those devices with the defined IDs.
> 
> I got a gf950 and gf970 in my system. Only one card is set to use
> vfio-pci. The other is used by host.
> 
> 
> Best regards
> Karsten
> 
> 2017-08-03 9:16 GMT+02:00 LOMBARD Maxime <berillions at gmail.com>:
>> softdep snd-hda-intel pre: vfio-pci
>> 
>> It's only used by the Ids that i added in the same vfio.conf ?
>> Because i have other device which use snd_hda_intel module.
>> 
>> I tried it this afternoon but it's strange that i need it on Gentoo and not
>> on Debian.
>> 
>> Envoyé de mon iPhone
>> 
>> Le 3 août 2017 à 08:59, Karsten Elfenbein <karsten.elfenbein at gmail.com> a
>> écrit :
>> 
>> Hi Maxime,
>> 
>> the modules need to load in the correct order. In this case the
>> vfio-pci needs to load before the snd-hda-intel and nvidia.
>> 
>> I have the following lines on my Gentoo machine to achieve that:
>> 
>> cat /etc/modprobe.d/vfio.conf
>> softdep nvidia pre: vfio-pci
>> softdep snd-hda-intel pre: vfio-pci
>> ...
>> 
>> Best regards
>> Karsten
>> 
>> 
>> 2017-08-03 8:47 GMT+02:00 LOMBARD Maxime <berillions at gmail.com>:
>> 
>> Hi,
>> 
>> 
>> I have a big problem on my Gentoo. A problem which does not exist on my
>> 
>> Debian in the same Desktop.
>> 
>> 
>> 1- i added in "/etc/modprobe.d/vfio.conf" the ids for my gtx970, gpu and
>> 
>> HDMI
>> 
>> 
>> 2- i added the vfio module in "/etc/conf.d/modules" to load them during the
>> 
>> boot.
>> 
>> 
>> After the reboot, there is only the VGA device which is attached to vfio,
>> 
>> the HDMI is still used by intel_hda module.
>> 
>> 
>> You can see my message in the gentoo forum :
>> 
>> https://forums.gentoo.org/viewtopic-t-1067110.html
>> 
>> 
>> Thanks for your help.
>> 
>> Maxime
>> 
>> 
>> 
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>> 
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>>