Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"

From: Roland Dreier
Date: Fri Aug 24 2018 - 13:08:47 EST


> See
> <https://lore.kernel.org/lkml/1512686629.18523.217.camel@xxxxxxxxxxxxxxx/T/#u>.

Thanks! I'm not using SGI UV and I'm not using kexec, so I guess I
sidestepped most of those issues. Greg, I think we need to unrevert
the cpa->pfn change (otherwise the L1TF fix probably gets pretty
messy) and I guess pull in the other patches that Ben mentions.

- R.