Re: [Xen-devel] Re: SATA pass-through woes

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Mar 04, 2011 at 07:24:24PM -0800, Patrick Colp wrote:
> A quick addendum to this:
> 
> I've tried with both PVOPS (2.6.31.13 and 2.6.32.26) and 2.6.18
> kernels. For 2.6.18, the SATA driver doesn't work, so I use the PIIXn
> regular ATA IDE driver (in the BIOS I have the SATA set to export the
> device in IDE mode rather than AHCI, as I don't think I can pass AHCI
> devices through).

And what does your guest config file look like? What does your serial log
look like? What version of Xen are you using (please provide c/s)?Do other
devices on the "failing" machine work with pass-through? What kind of
machine is this? Does it have an IOMMU?
> 
> The issue is the same in both (constantly reading in 0xff from the
> status port and SRST failing and eventually giving up).
> 
> 
> Patrick
> 
> 
> On 4 March 2011 18:38, Patrick Colp <pjcolp@xxxxxxxxx> wrote:
> > I'm trying to pass my SATA controller through to a domain and have run
> > into a weird situation. I have two machines with the same general
> > class of hardware (Intel PIIX) and the pass-through works on one
> > machine but not the other. On the non-working system, the SATA
> > controller makes port reads, but they don't return the correct values.
> > For example, when running it in dom0, when polling the bmdma status
> > register, it returns 0x60 and when polling the command status register
> > , it returns 0x50. However, when passing it through, the bmdma
> > register returns 0x0 and the command register returns 0xff (the error
> > register also returns 0xff, shedding no additional light on the
> > situation).
> >
> > This is the hardware on the working system:
> >
> > 00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA IDE
> > Controller (rev 01) (prog-if 8f [Master SecP SecO PriP PriO])
> >        Subsystem: Intel Corporation Device 544e
> >        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> > Stepping- SERR- FastB2B- DisINTx-
> >        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> >        Latency: 0
> >        Interrupt: pin B routed to IRQ 19
> >        Region 0: I/O ports at 20c8 [size=8]
> >        Region 1: I/O ports at 20ec [size=4]
> >        Region 2: I/O ports at 20c0 [size=8]
> >        Region 3: I/O ports at 20e8 [size=4]
> >        Region 4: I/O ports at 20a0 [size=16]
> >        Region 5: Memory at d02c4000 (32-bit, non-prefetchable) [size=1K]
> >        Capabilities: [70] Power Management version 2
> >                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
> > PME(D0-,D1-,D2-,D3hot+,D3cold-)
> >                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> >        Kernel driver in use: ata_piix
> >
> >
> > This is the hardware on the non-working system:
> >
> > 00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port
> > SATA IDE Controller #1 (prog-if 8f [Master SecP SecO PriP PriO])
> >        Subsystem: Dell Device 0293
> >        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> > Stepping- SERR- FastB2B- DisINTx-
> >        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> >        Latency: 0
> >        Interrupt: pin C routed to IRQ 20
> >        Region 0: I/O ports at fe00 [size=8]
> >        Region 1: I/O ports at fe10 [size=4]
> >        Region 2: I/O ports at fe20 [size=8]
> >        Region 3: I/O ports at fe30 [size=4]
> >        Region 4: I/O ports at fec0 [size=16]
> >        Region 5: I/O ports at ecc0 [size=16]
> >        Capabilities: [70] Power Management version 3
> >                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
> > PME(D0-,D1-,D2-,D3hot-,D3cold-)
> >                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> >        Capabilities: [b0] PCIe advanced features <?>
> >        Kernel driver in use: ata_piix
> >
> >
> > Does anybody have any thoughts about what might be going on here?
> >
> >
> > Patrick
> >
> 
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