On Fri, Apr 05, 2019 at 10:27:05AM -0600, Andy Lutomirski wrote: > At the risk of asking stupid questions: we already have a mechanism > for this: highmem. Can we enable highmem on x86_64, maybe with some > heuristics to make it work well? That's what I said; but note that I'm still not convinced fixmap/highmem is actually correct TLB wise.
