From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dominic Eschweiler <eschweiler@fias.uni-frankfurt.de>
Subject: vfio problems
Date: Thu, 04 Oct 2012 11:40:30 +0200
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To: Alex Williamson <alex.williamson@redhat.com>
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Hi,

I just recently started to play with vfio, since the new Kernel 3.6
comes directly with an integrated vfio-stack. My problem currently is,
that I'm not able to bind the vfio-pci to the (unused) smbus controller
in my laptop.=20

Here are the steps I did and the related results:


# modprobe vfio-pci

[ 1609.065705] VFIO - User Level meta-driver version: 0.3

# lspci

=2E..
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family
SMBus Controller (rev 05)
=2E..

# lspci -n -s 0000:00:1f.3

00:1f.3 0c05: 8086:1c22 (rev 05)

# echo 8086 1c22 > /sys/bus/pci/drivers/vfio-pci/new_id

[ 4485.759148] vfio-pci: probe of 0000:00:1f.3 failed with error -22


I omitted the unbind step, which is described in the documentation,
since the device is not claimed by any driver at all. Also the "error
-22" statement isn't really helping in this case.=20

Any ideas?

--=20
Gru=C3=9F
  Dominic

=46rankfurt Institute for Advanced Studies (FIAS)
Ruth-Moufang-Stra=C3=9Fe 1
D-60438 Frankfurt am Main
Germany

Phone:  +49 69 79844114