Re: [RFC PATCH v2 09/10] iommu/dma: Support MSIs through nested domains

From: Nicolin Chen
Date: Fri Jun 14 2024 - 14:12:44 EST


On Fri, Jun 14, 2024 at 10:21:55PM +0800, Zong Li wrote:
> From: Robin Murphy <robin.murphy@xxxxxxx>
>
> Currently, iommu-dma is the only place outside of IOMMUFD and drivers
> which might need to be aware of the stage 2 domain encapsulated within
> a nested domain. This would be in the legacy-VFIO-style case where we're
> using host-managed MSIs with an identity mapping at stage 1, where it is
> the underlying stage 2 domain which owns an MSI cookie and holds the
> corresponding dynamic mappings. Hook up the new op to resolve what we
> need from a nested domain.
>
> Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx>
> Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>

I think there should be your Signed-off line at the end since you
act as a submitter :)

Thanks
Nicolin