Arch Linux

JustSomeGeek

Member

From: Scotland

Registered: 2018-08-13

Posts: 29

Remove device from vfio-pci passthrough? [SOLVED]

4.19.2-arch1-1-ARCH, UEFI, SystemD

I've removed the device (Creative SB X-Fi) from vfio.conf, and rebooted.

It's still listed in dmesg | grep -i vfio

I set it up a few months ago so I could still use Windows, but as i've moved to Arch more and more, I want to do all my audio/MIDI stuff in Linux now instead. Trouble is, I can't even remember what I had for dinner last night, let alone how I set everything up in the first place.

I tried working back through the Arch PCI Passthrough guide, but I've either missed something, or I've done something that's not on it.

Help! lol

Last edited by JustSomeGeek (2018-11-22 20:45:14)

progandy

Member

Registered: 2012-05-17

Posts: 3,331

Re: Remove device from vfio-pci passthrough? [SOLVED]

Check for a blacklisted driver in /etc/modprobe.d and remove the entry if necessary,
check if you have added vfio configuration to the kernel commandline in your bootloader and remove it
If you don't use vfio anymore, remove it from the MODULES in mkinitcpio.conf.
Then regenerate the initramfs.

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| alias CUTF='LANG=en_XX.UTF-8@POSIX ' |

JustSomeGeek

Member

From: Scotland

Registered: 2018-08-13

Posts: 29

Re: Remove device from vfio-pci passthrough? [SOLVED]

Check for a blacklisted driver in /etc/modprobe.d and remove the entry if necessary,
check if you have added vfio configuration to the kernel commandline in your bootloader and remove it
If you don't use vfio anymore, remove it from the MODULES in mkinitcpio.conf.
Then regenerate the initramfs.

Tried all that now, still no luck. I still need everything, just not one device.

Output from dmesg if that sheds any light?
It's 1102:0009 that I need to remove.

1.524364] VFIO - User Level meta-driver version: 0.3
[    1.527244] vfio-pci 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=none
[    1.541168] vfio_pci: add [10de:1b80[ffff:ffff]] class 0x000000/00000000
[    1.557845] vfio_pci: add [10de:10f0[ffff:ffff]] class 0x000000/00000000
[    1.591219] vfio_pci: add [8086:105e[ffff:ffff]] class 0x000000/00000000
[    1.607940] vfio_pci: add [1102:0009[ffff:ffff]] class 0x000000/00000000
[    3.263930] vfio-pci 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=none

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 6,782

Re: Remove device from vfio-pci passthrough? [SOLVED]

post lspci -knn please, also the output from the script at https://wiki.archlinux.org/index.php/PC … _are_valid

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Multi-init booting with apg Openrc and systemd coexisting
Automounting : not needed, i prefer pmount
Aur helpers : makepkg + my own local repo === rarely need them

WorMzy

Forum Moderator

From: Scotland

Registered: 2010-06-16

Posts: 8,693

Website

Re: Remove device from vfio-pci passthrough? [SOLVED]

JustSomeGeek, Please use code tags when posting terminal output.

https://wiki.archlinux.org/index.php/Co … s_and_code

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Sakura:-
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JustSomeGeek

Member

From: Scotland

Registered: 2018-08-13

Posts: 29

Re: Remove device from vfio-pci passthrough? [SOLVED]

Thanks folks. But learning about pastebin clients is not on the agenda right now. It's a pretty harsh learning curve as it is, and it's one more distraction I don't need. I'll try and sort it myself. Thanks anyway!

JustSomeGeek

Member

From: Scotland

Registered: 2018-08-13

Posts: 29

Re: Remove device from vfio-pci passthrough? [SOLVED]

Fixed. typo when regenerating the initramfs. My bad :-/

Thanks Progandy!