[Xen-users] Re: AW: Re: PCI passthrough problem

[Christian Tramnitz <chris.ace@xxxxxxx>]

Leo Krüger wrote:
> Hi,
>
> thanks fort the fast response. Sadly that didn't help.
> pciback.permissive was already passed to dom0 kernel. I additionaly added
> the device to
> xend-pci-permissive.sxp.
>
> Still the same error.
>
> Heres a more detailed output of lspci in dom0:
>
> debserv:~# lspci -vv -n -s 03:00.0
> 03:00.0 0280: 168c:0024 (rev 01)
>         Subsystem: 106b:0087
>         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-
>         Latency: 0, Cache Line Size: 64 bytes
>         Interrupt: pin A routed to IRQ 18
>         Region 0: Memory at febf0000 (64-bit, non-prefetchable) [size=64K]
>         Capabilities: [40] Power Management version 2
>                 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA
> PME(D0+,D1+,D2-,D3hot+,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [50] Message Signalled Interrupts: Mask- 64bit-
> Queue=0/0 Enable-
>                 Address: 00000000  Data: 0000
>         Capabilities: [60] Express (v1) Legacy Endpoint, MSI 00
>                 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
> <512ns, L1 <64us
>                         ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
>                 DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
> Unsupported-
>                         RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
>                         MaxPayload 128 bytes, MaxReadReq 512 bytes
>                 DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr-
> TransPend-
>                 LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1,
> Latency L0 <512ns, L1 <64us
>                         ClockPM- Suprise- LLActRep- BwNot-
>                 LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain-
> CommClk+
>                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                 LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
> DLActive- BWMgmt- ABWMgmt-
>         Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
>                 Vector table: BAR=0 offset=00000000
>                 PBA: BAR=0 offset=00000000
>         Capabilities: [100] Advanced Error Reporting <?>
>         Capabilities: [140] Virtual Channel <?>
>         Kernel driver in use: ath9k
>         Kernel modules: ath9k
>
>
> I added 0280: 168c:0024 to xend-pci-permissive.sxp, is this right?
> What about adding the device to xend-pci-quirks.sxp? It seems as if this
> file is for devices which need access to configuration space. How do I know
> which config space fields the device needs access to?
>
> Leo
Please verify if the error message is related to loading the driver at 
all, i.e. watch xm dmesg before/after you try to load the ath9k driver.
Also have a look at dom0 (non-xm) dmesg, because this is usually the 
place where the need for permissive/quirks is logged.
Best regards,
   Christian


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