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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 2 Dec 2016 11:24:09 -0800
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Subject: Re: [PATCH v2 5/6] x86/xen: Add a Xen-specific sync_core() implementation
To: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@kernel.org>, Andy Lutomirski <luto@kernel.org>,
        Peter Anvin <hpa@zytor.com>,
        "the arch/x86 maintainers" <x86@kernel.org>,
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On Fri, Dec 2, 2016 at 11:20 AM, Borislav Petkov <bp@alien8.de> wrote:
>
> Something like below?

The optimize-nops thing needs it too, I think.

Again, this will never matter in practice (even if somebody has a i486
s till, the prefetch window size is like 16 bytes or something), but
from a documentation standpoint it's good.

              Linus