Re: [PATCH v1 02/14] iommufd: Add nesting related data structures for ARM SMMUv3

Nicolin Chen
2023-03-10T04:51:17Z

On Thu, Mar 09, 2023 at 10:48:50AM -0400, Jason Gunthorpe wrote:

> Nicolin, I think we should tweak the uAPI here so that the
> invalidation opaque data has a format tagged on its own, instead of
> re-using the HWPT tag. Ie you can have a ARM SMMUv3 invalidate type
> tag and also a virtio-viommu invalidate type tag.

The invalidation tage is shared with the hwpt allocation. Does
it mean that virtio-iommu won't have it's own allocation tag?

Thanks
Nic