[Xen-devel] Re: with Xen4 config -> (pci-passthrough-strict-check no), DomU init reports "Error: pci: PCI Backend and pci-stub don't own device"

[0bo0 <0.bugs.only.0@xxxxxxxxx>]

checking @ source,

...
 # Test whether the device is owned by pciback or pci-stub.
        try:
            pci_device = PciDevice(new_dev)
        except Exception, e:
            raise VmError("pci: failed to locate device and "+
                    "parse its resources - "+str(e))
        if pci_device.driver!='pciback' and pci_device.driver!='pci-stub':
            raise VmError(("pci: PCI Backend and pci-stub don't own device %s")\
                            %pci_device.name)
...

verifying the device is being seized @ startup; looks not to be :-/

...
dmesg | egrep "4:06|4:07|pciback"
...
[    0.216794] PCI: 0000:04:07.0 has been reserved for guest domain.
[    0.216794] PCI: 0000:04:06.0 has been reserved for guest domain.
[    0.260161] pci 0000:04:06.0: reg 10: [mem 0xfbfe0000-0xfbffffff]
[    0.260171] pci 0000:04:06.0: reg 14: [mem 0xfbfc0000-0xfbfdffff]
[    0.260180] pci 0000:04:06.0: reg 18: [io  0xec00-0xec3f]
[    0.260214] pci 0000:04:06.0: reg 30: [mem 0xfbfa0000-0xfbfbffff pref]
[    0.260221] pci 0000:04:06.0: Disabling memory decoding and
releasing memory resources.
[    0.260262] pci 0000:04:06.0: PME# supported from D0 D3hot D3cold
[    0.260268] pci 0000:04:06.0: PME# disabled
[    0.260340] pci 0000:04:07.0: reg 10: [mem 0xfbf9fc00-0xfbf9fc7f 64bit]
[    0.260357] pci 0000:04:07.0: reg 18: [mem 0xfbf90000-0xfbf97fff 64bit]
[    0.260367] pci 0000:04:07.0: reg 20: [io  0xe880-0xe88f]
[    0.260385] pci 0000:04:07.0: reg 30: [mem 0xfbf00000-0xfbf7ffff pref]
[    0.260391] pci 0000:04:07.0: Disabling memory decoding and
releasing memory resources.
[    0.260434] pci 0000:04:07.0: supports D1 D2
[    0.273957] pci 0000:04:07.0: BAR 6: assigned [mem
0xf0100000-0xf017ffff pref]
[    0.273961] pci 0000:04:06.0: BAR 0: assigned [mem 0xfbf00000-0xfbf1ffff]
[    0.273972] pci 0000:04:06.0: BAR 0: set to [mem
0xfbf00000-0xfbf1ffff] (PCI address [0xfbf00000-0xfbf1ffff]
[    0.273977] pci 0000:04:06.0: BAR 1: assigned [mem 0xfbf20000-0xfbf3ffff]
[    0.273985] pci 0000:04:06.0: BAR 1: set to [mem
0xfbf20000-0xfbf3ffff] (PCI address [0xfbf20000-0xfbf3ffff]
[    0.273991] pci 0000:04:06.0: BAR 6: assigned [mem
0xf0180000-0xf019ffff pref]
[    0.273995] pci 0000:04:07.0: BAR 2: assigned [mem
0xfbf40000-0xfbf47fff 64bit]
[    0.274008] pci 0000:04:07.0: BAR 2: set to [mem
0xfbf40000-0xfbf47fff 64bit] (PCI address [0xfbf40000-0xfbf47fff]
[    0.274013] pci 0000:04:07.0: BAR 0: assigned [mem
0xfbf48000-0xfbf4807f 64bit]
[    0.274026] pci 0000:04:07.0: BAR 0: set to [mem
0xfbf48000-0xfbf4807f 64bit] (PCI address [0xfbf48000-0xfbf4807f]
[    5.562894] sata_sil24 0000:04:07.0: version 1.1
[    5.562913] sata_sil24 0000:04:07.0: enabling device (019d -> 019f)
[    5.562933] sata_sil24 0000:04:07.0: PCI INT A -> GSI 21 (level,
low) -> IRQ 21
[   29.932444] pciback 0000:04:06.0: seizing device
[   29.932501] pciback 0000:04:06.0: enabling device (0115 -> 0117)
[   29.932521] pciback 0000:04:06.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[   29.932528] pciback 0000:04:06.0: PCI INT A disabled

dropping back to

  uname -ri
    2.6.31.12-2-xen x86_64


the dmesg output and the DomU init results are the same ... no-go.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel