On Fri, 2016-11-25 at 12:35 +0530, Aneesh Kumar K.V wrote: > Now the question will be how will we support _PAGE_DEVMAP (for > nvidmm). > We don't have free software pte bits after we make the above change. > > NOTE: We do have 3 reserved bits(ppc bit 4-6 ) can we use that ?
Yes, I think we can, at least as long as it's a DD1 thing only, future processors might re-use these. Cheers, Ben.