[PATCH v3 0/6] Add virtio-iommu built-in topology

Jean-Philippe Brucker
2020-08-27T08:01:25Z

On Wed, Aug 26, 2020 at 09:26:02AM -0400, Michael S. Tsirkin
wrote:
> On Fri, Aug 21, 2020 at 03:15:34PM +0200, Jean-Philippe Brucker wrote:
> > Add a topology description to the virtio-iommu driver and enable x86
> > platforms.
> >
> > Since [v2] we have made some progress on adding ACPI support for
> > virtio-iommu, which is the preferred boot method on x86. It will be a
> > new vendor-agnostic table describing para-virtual topologies in a
> > minimal format. However some platforms don't use either ACPI or DT
for
> > booting (for example microvm), and will need the alternative topology
> > description method proposed here. In addition, since the process to
get
> > a new ACPI table will take a long time, this provides a boot method
even
> > to ACPI-based platforms, if only temporarily for testing and
> > development.
>
> OK should I park this in next now? Seems appropriate ...

Yes that sounds like a good idea. It could uncover new bugs since there is
more automated testing happening for x86.

Thanks,
Jean