Re: [Xen-devel] [PATCH RFC] Add SUPPORT.md

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 31 Aug 2017, Roger Pau Monne wrote:
> > +### ARM/Non-PCI device passthrough
> > +
> > +    Status: Supported
> 
> I guess non-pci devices on ARM also use the IOMMU? (SMMU)

Yes, they do.


> > +### ARM/SMMU
> > +
> > +    Status: Supported, with caveats
> > +
> > +Only ARM SMMU hardware is supported; non-ARM SMMU hardware is not 
> > supported.
> 
> I'm not sure of the purpose of this sentence, it's quite clear that
> the SMMU is only supported if available. Also, I'm not sure this
> should be spelled out in this document, x86 doesn't have a VT-d or SVM
> section.

As George wrote, there are many SMMUs in the market for ARM based
platforms, not all of them of ARM design.

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