On Mon, May 10, 2021 at 03:28:54PM -0700, Jacob Pan wrote: > To satisfy your "give me a PASID for this RID" proposal, can we just use > the RID's struct device as the token? Also add a type field to explicitly > indicate global vs per-set(per-RID). i.e.
You've got it backwards, the main behavior should be to allocate PASID per RID. The special behavior is to bundle a bunch of PASIDs into a grouping and then say the PASID number space is shared between all the group members. /dev/ioasid should create and own this grouping either implicitly or explicitly. Jumping ahead to in-kernel APIs has missed the critical step of defining the uAPI and all the behaviors together in a completed RFC proposal. Jason _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
