Re: [RFC, PATCHv1 00/28] 5-level paging

From: Linus Torvalds
Date: Thu Dec 08 2016 - 13:16:14 EST

On Thu, Dec 8, 2016 at 8:21 AM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> This patchset is still very early. There are a number of things missing
> that we have to do before asking anyone to merge it (listed below).
> It would be great if folks can start testing applications now (in QEMU) to
> look for breakage.
> Any early comments on the design or the patches would be appreciated as
> well.

Looks ok to me. Starting off with a compile-time config option seems fine.

I do think that the x86 cpuid part should (patch 15) should be the
first patch, so that we see "la57" as a capability in /proc/cpuinfo
whether it's being enabled or not? We should merge that part
regardless of any mm patches, I think.