On Tue, Jun 01, 2021 at 02:07:05PM +0800, Jason Wang wrote: > For the case of 1M, I would like to know what's the use case for a single > process to handle 1M+ address spaces?
For some scenarios every guest PASID will require a IOASID ID # so there is a large enough demand that FDs alone are not a good fit. Further there are global container wide properties that are hard to carry over to a multi-FD model, like the attachment of devices to the container at the startup. > > So this RFC treats fd as a container of address spaces which is each > > tagged by an IOASID. > > If the container and address space is 1:1 then the container seems useless. The examples at the bottom of the document show multiple IOASIDs in the container for a parent/child type relationship Jason _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
