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Re: [Xen-users] Xen 4.0.1 PCI passthrough help



Ok, so I've been working on this - The domU won't even boot at all with
the pci part included in the config, it just sits at p on 0.0 and the
xen log streams the following endlessly, until I restart xend.

<--snip
[2010-08-05 16:02:24 3593] DEBUG (XendDomainInfo:2790) _freeDMAmemory (5) Need 
57064KiB DMA memory. Asking for 4142836KiB
[2010-08-05 16:02:24 3593] DEBUG (XendDomainInfo:2790) _freeDMAmemory (4) Need 
57064KiB DMA memory. Asking for 4144884KiB
[2010-08-05 16:02:24 3593] DEBUG (XendDomainInfo:2790) _freeDMAmemory (3) Need 
57064KiB DMA memory. Asking for 4146932KiB
[2010-08-05 16:02:24 3593] DEBUG (XendDomainInfo:2790) _freeDMAmemory (2) Need 
57064KiB DMA memory. Asking for 4148980KiB
[2010-08-05 16:02:24 3593] DEBUG (XendDomainInfo:2790) _freeDMAmemory (1) Need 
57064KiB DMA memory. Asking for 4151028KiB
[2010-08-05 16:02:24 3593] WARNING (XendDomainInfo:2806) We tried our best to 
balloon down DMA memory to accomodate your PV guest. We need 57064KiB extra 
memory.
<--snip

then the following is shown (after some info about disks etc..):

[2010-08-05 16:02:24 3593] INFO (XendDomainInfo:2367) createDevice: pci : 
{'devs': [{'slot': '0x00', 'domain': '0x0000', 'key': '0a:00.0', 'bus': '0x0a', 
'vdevfn': '0x100', 'func': '0x0', 'uuid': 
'af2849a8-fd68-a178-b3dd-dd1a7f43147c'}], 'uuid': 
'432a09e2-bb8d-0c78-821f-df8310261b66'}
[2010-08-05 16:02:24 3593] INFO (pciquirk:92) NO quirks found for PCI device 
[8086:10c9:8086:0000]
[2010-08-05 16:02:24 3593] DEBUG (pciquirk:132) Permissive mode enabled for PCI 
device [8086:10c9:8086:0000]
[2010-08-05 16:02:24 3593] DEBUG (pciquirk:141) Unconstrained device: 
0000:0a:00.0
[2010-08-05 16:02:24 3593] ERROR (XendDomainInfo:2904) 
XendDomainInfo.initDomain: exception occurred
Traceback (most recent call last):
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomainInfo.py", line 2896, in 
_initDomain
    self._createDevices()
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomainInfo.py", line 2374, in 
_createDevices
    devid = self._createDevice(devclass, config)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomainInfo.py", line 2336, in 
_createDevice
    return self.getDeviceController(deviceClass).createDevice(devConfig)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/server/DevController.py", line 67, 
in createDevice
    self.setupDevice(config)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/server/pciif.py", line 453, in 
setupDevice
    self.setupOneDevice(d)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/server/pciif.py", line 316, in 
setupOneDevice
    raise VmError("Failed to assign device to IOMMU (%s)" % pci_str)
VmError: Failed to assign device to IOMMU (0000:0a:00.0)
[2010-08-05 16:02:24 3593] ERROR (XendDomainInfo:483) VM start failed
Traceback (most recent call last):
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomainInfo.py", line 469, in 
start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendTask.py", line 209, in 
log_progress
    retval = func(*args, **kwds)
  File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomainInfo.py", line 2907, in 
_initDomain
    raise exn
VmError: Failed to assign device to IOMMU (0000:0a:00.0)

Anyone have any idea where I'm going wrong here? I have iommu=soft and 
swiotlb=force in my extras.

Regards,
Mark

On Thu, Aug 05, 2010 at 01:33:54PM +0100, Mark Adams wrote:
> Hi all,
> 
> Debian squeeze 2.6.32-5 with Xen 4.0
> 
> I'm having some issues getting PCI passthrough to work for a quad port
> Gigabit NIC card. I've added the devices and they are not visible in
> dom0, however when the domU boots up all I get is the following:
> 
> [    0.644428] Intel(R) Gigabit Ethernet Network Driver - version 1.0.8-k2
> [    0.644433] Copyright (c) 2008 Intel Corporation.
> [    0.644838] PCI: Setting latency timer of device 0000:00:00.0 to 64
> [    0.655956] igb: probe of 0000:00:00.0 failed with error -2
> 
> lspci shows the following in the domU:
> 
> 00:00.0 Ethernet controller: Intel Corporation Device 10c9 (rev 01)
>         Subsystem: Intel Corporation Device 0000
>         Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
> Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
> <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Interrupt: pin A routed to IRQ 26
>         Region 0: Memory at fae60000 (32-bit, non-prefetchable) [size=128K]
>         Region 2: I/O ports at d880 [size=32]
>         Region 3: Memory at fae5c000 (32-bit, non-prefetchable) [size=16K]
>         Capabilities: [40] Power Management version 3
>                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=1 PME-
>         Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ 
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000
>                 Masking: 00000000  Pending: 00000000
>         Capabilities: [70] MSI-X: Enable- Mask- TabSize=10
>                 Vector table: BAR=3 offset=00000000
>                 PBA: BAR=3 offset=00002000
>         Capabilities: [a0] Express (v2) Endpoint, MSI 00
>                 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <4us, 
> L1 <64us
>                         ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
>                 DevCtl: Report errors: Correctable- Non-Fatal- Fatal- 
> Unsupported-
>                         RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
>                         MaxPayload 128 bytes, MaxReadReq 512 bytes
>                 DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- 
> TransPend-
>                 LnkCap: Port #4, Speed 2.5GT/s, Width x4, ASPM L0s L1, 
> Latency L0 <2us, L1 <64us
>                         ClockPM- Suprise- LLActRep- BwNot-
>                 LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- 
> CommClk+
>                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                 LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ 
> DLActive- BWMgmt- ABWMgmt-
>         Capabilities: [100] Advanced Error Reporting <?>
>         Capabilities: [150] #0e
>         Capabilities: [160] #10
>         Kernel modules: igb
> 
> 
> Does anyone have any ideas what I might be doing wrong or how I can debug 
> this further?
> 
> Best Regards,
> Mark
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users


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