Re: [Xen-users] (XEN) physdev.c:61: dom1: map invalid irq 1251

[Pasi Kärkkäinen <pasik@xxxxxx>]

Adding xen-devel to CC list..

-- Pasi

On Sat, Jan 01, 2011 at 04:59:39PM +0100, Rome Pierce wrote:
> Hello,
> 
> i'm using the latest Xen 4.0 testing from the mercurial repository and i want 
> to passthrough my Intel Core gpu. But somehow it has a weird IRQ of 1251. So 
> i cant start the vm if i set pci=['00:02.0']. The device is bound to the 
> pciback driver correctly.
> 
> The interesting part of xm dmesg (appears when i start the vm):
> 
> (XEN) [VT-D]iommu.c:1484: d0:PCI: unmap bdf = 0:2.0
> (XEN) [VT-D]iommu.c:1362: d1:PCI: map bdf = 0:2.0
> (XEN) physdev.c:61: dom1: map invalid irq 1251
> (XEN) [VT-D]io.c:300: d1: bind: m_gsi=55 g_gsi=36 device=5 intx=0
> (XEN) [VT-D]iommu.c:1484: d1:PCI: unmap bdf = 0:2.0
> (XEN) [VT-D]iommu.c:1362: d0:PCI: map bdf = 0:2.0
> 
> 
> lspci -vvv:
> 
> 00:02.0 VGA compatible controller: Intel Corporation Core Processor 
> Integrated Graphics Controller (rev 12) (prog-if 00 [VGA controller])
>         Subsystem: Micro-Star International Co., Ltd. Device 7636
>         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
>         Interrupt: pin A routed to IRQ 1251
>         Region 0: Memory at fb800000 (64-bit, non-prefetchable) [size=4M]
>         Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
>         Region 4: I/O ports at cc00 [size=8]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
>                 Address: fee0800c  Data: 4161
>         Capabilities: [d0] Power Management version 2
>                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [a4] PCI Advanced Features
>                 AFCap: TP+ FLR+
>                 AFCtrl: FLR-
>                 AFStatus: TP-
>         Kernel driver in use: pciback
> 
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