Re: [Xen-devel] [PATCH v2] AMD/IOMMU: don't "add" IOMMUs

["Woods, Brian" <Brian.Woods@xxxxxxx>]

On Wed, Jun 26, 2019 at 01:30:28PM +0100, Andy Cooper wrote:
> On 04/06/2019 13:15, Jan Beulich wrote:
> > For find_iommu_for_device() to consistently (independent of ACPI tables)
> > return NULL for the PCI devices corresponding to IOMMUs, make sure
> > IOMMUs don't get mapped to themselves by ivrs_mappings[].
> >
> > While amd_iommu_add_device() won't be called for IOMMUs from
> > pci_add_device(), as IOMMUs have got marked r/o,
> > _setup_hwdom_pci_devices() calls there nevertheless. Avoid issuing the
> > bogus debugging only "No iommu for ...; cannot be handed to ..." log
> > message as well as the non-debugging "setup ... for ... failed (-19)"
> > one.
> >
> > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> 
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Brian Woods <brian.woods@xxxxxxx>

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-- 
Brian Woods

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