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xen-users
Re: [Xen-users] Re: pci passthru not working after 4.0.1 > 4.1.0 upgrade
Hello,
I added xen-devel to CC list.. more details in the end of Andrew's
mail below.
-- Pasi
On Thu, Apr 14, 2011 at 11:48:46AM +0100, Andrew Lyon wrote:
> On Thu, Apr 14, 2011 at 10:46 AM, Andrew Lyon <andrew.lyon@xxxxxxxxx> wrote:
> > Hi,
> >
> > I've just upgraded to 4.1.0 from 4.0.1 and found that one of my hvm's
> > failed to start due to pci passthru failure:
> >
> > xm create xen-win7.cfg
> > Using config file "./xen-win7.cfg".
> > Error: pci: PCI Backend and pci-stub don't own sibling device
> > 0000:00:00.0 of device 0000:02:01.1
> >
> > Setting from guest config file:
> >
> > pci = [ '0000:02:01.0', '0000:02:01.1', '0000:02:01.2' ]
> >
> > 02:01.0 USB Controller: NEC Corporation USB (rev 43)
> > 02:01.1 USB Controller: NEC Corporation USB (rev 43)
> > 02:01.2 USB Controller: NEC Corporation USB 2.0 (rev 04)
> >
> > It worked before, and the device is listed as available to be assigned:
> >
> > xm pci-list-assignable-devices
> > 0000:02:01.0
> > 0000:02:01.1
> > 0000:02:01.2
> >
> > lspci -tv
> > -[0000:00]-+-00.0 Intel Corporation 5400 Chipset Memory Controller Hub
> > +-01.0-[01-02]----00.0-[02]--+-01.0 NEC Corporation USB
> > | +-01.1 NEC Corporation USB
> > | \-01.2 NEC Corporation USB 2.0
> > +-05.0-[03]----00.0 nVidia Corporation G96 [Quadro FX 380]
> > +-09.0-[04-07]--+-00.0-[05-06]----00.0-[06]----00.0 Adaptec
> > AAC-RAID
> > | \-00.3-[07]--+-02.0 LSI Logic / Symbios
> > Logic 53c1010 Ultra3 SCSI Adapter
> > | \-02.1 LSI Logic / Symbios
> > Logic 53c1010 Ultra3 SCSI Adapter
> > +-0f.0 Intel Corporation 5400 Chipset QuickData Technology Device
> > +-10.0 Intel Corporation 5400 Chipset FSB Registers
> > +-10.1 Intel Corporation 5400 Chipset FSB Registers
> > +-10.2 Intel Corporation 5400 Chipset FSB Registers
> > +-10.3 Intel Corporation 5400 Chipset FSB Registers
> > +-10.4 Intel Corporation 5400 Chipset FSB Registers
> > +-11.0 Intel Corporation 5400 Chipset CE/SF Registers
> > +-15.0 Intel Corporation 5400 Chipset FBD Registers
> > +-15.1 Intel Corporation 5400 Chipset FBD Registers
> > +-16.0 Intel Corporation 5400 Chipset FBD Registers
> > +-16.1 Intel Corporation 5400 Chipset FBD Registers
> > +-1b.0 Intel Corporation 631xESB/632xESB High Definition
> > Audio Controller
> > +-1c.0-[08]--+-00.0 Intel Corporation 82575EB Gigabit
> > Network Connection
> > | \-00.1 Intel Corporation 82575EB Gigabit
> > Network Connection
> > +-1d.0 Intel Corporation 631xESB/632xESB/3100 Chipset UHCI
> > USB Controller #1
> > +-1d.1 Intel Corporation 631xESB/632xESB/3100 Chipset UHCI
> > USB Controller #2
> > +-1d.2 Intel Corporation 631xESB/632xESB/3100 Chipset UHCI
> > USB Controller #3
> > +-1d.3 Intel Corporation 631xESB/632xESB/3100 Chipset UHCI
> > USB Controller #4
> > +-1d.7 Intel Corporation 631xESB/632xESB/3100 Chipset EHCI
> > USB2 Controller
> > +-1e.0-[09]--+-04.0 VIA Technologies, Inc. VT82xxxxx UHCI
> > USB 1.1 Controller
> > | +-04.1 VIA Technologies, Inc. VT82xxxxx UHCI
> > USB 1.1 Controller
> > | +-04.2 VIA Technologies, Inc. USB 2.0
> > | \-08.0 Texas Instruments TSB43AB22/A
> > IEEE-1394a-2000 Controller (PHY/Link)
> > +-1f.0 Intel Corporation 631xESB/632xESB/3100 Chipset LPC
> > Interface Controller
> > +-1f.1 Intel Corporation 631xESB/632xESB IDE Controller
> > +-1f.2 Intel Corporation 631xESB/632xESB/3100 Chipset SATA
> > IDE Controller
> > \-1f.3 Intel Corporation 631xESB/632xESB/3100 Chipset
> > SMBus Controller
> >
> > I am running kernel 2.6.38 xenified with suse patches, not pv_ops,
> > using the pciback.hide syntax to hide the device from dom0 drivers.
> >
> > I did some testing and I can passthru 0000:02:01.0 but not the other
> > two functions of the usb card.
> >
> > Andy
> >
>
> This clearly looks like the sibling device check is somehow ending up
> at the root of the pci device tree which of course is not owned by
> pciback etc, If I disable the check I can start the domain and the pci
> usb card is available and seems to work ok.
>
> pciif.py line 285:
>
> # if sdev.driver!='pciback' and sdev.driver!='pci-stub':
> # raise VmError(("pci: PCI Backend and pci-stub don't "+ \
> # "own sibling device %s of device %s"\
> # )%(sdev.name, dev.name))
>
> Andy
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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