Re: [PATCH 1/1] PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU

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Hi,

On Wed, Sep 1, 2021 at 11:18 PM Jon Derrick <jonathan.derrick@xxxxxxxxx> wrote:
>
> Thank you Adrian
>
> On 9/1/21 6:40 AM, Adrian Huang wrote:
> > From: Adrian Huang <ahuang12@xxxxxxxxxx>
> >
> > When enabling VMD in BIOS setup (Ice Lake Processor: Whitley platform),
> > the host OS cannot boot successfully with the following error message:
> >
> >   nvme nvme0: I/O 12 QID 0 timeout, completion polled
> >   nvme nvme0: Shutdown timeout set to 6 seconds
> >   DMAR: DRHD: handling fault status reg 2
> >   DMAR: [INTR-REMAP] Request device [0x00:0x00.5] fault index 0xa00 [fault reason 0x25] Blocked a compatibility format interrupt request
>
> I know we'd really prefer to support interrupt remapping with the VMD feature,
> and I'm not certain how EIME differs from the interrupt remapping modes that
> were tested while developing the VMD feature.
>
> I think this will have to be acceptable for now.
>
> Reviewed-by: Jon Derrick <jonathan.derrick@xxxxxxxxx>
>

Gentle ping. Any comments about this patch (with Jon's Reviewed-by)?

-- Adrian



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