On Fri, May 07, 2021 at 11:06:14AM -0600, Alex Williamson wrote: > We had tossed around an idea of a super-container with vfio, it's maybe > something we'd want to incorporate into this design. For instance, if > memory could be pre-registered with a super container, which would > handle the locked memory accounting for that memory, then > sub-containers could all handle the IOMMU context of their sets of > devices relative to that common memory pool.
This is where I suggested to David to use nesting of IOASIDs. Without HW support for nesting a SW nest is really just re-using the memory registration information stored in the parent when constructing the children Jason _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
