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From: Holger =?iso-8859-1?q?Hoffst=E4tte?= <holger@applied-asynchrony.com>
Subject: [gentoo-user] Re: old kernels are installed during the upgrade
Date: Thu, 4 Jan 2018 16:02:11 +0000 (UTC)
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On Wed, 03 Jan 2018 15:53:07 -0500, Rich Freeman wrote:

> On Wed, Jan 3, 2018 at 3:35 PM, Wols Lists <antlists@youngman.org.uk> wrote:
>>
>> And as I understand it the code can be disabled with either a compile
>> time option or command line switch to the kernel.
> 
> I suspect the compile-time option is PAGE_TABLE_ISOLATION (which was
> newly added in 4.14.11).  The command line option nopti will disable
> it at runtime.
> 
> Rumor has it that it will be disabled on AMD CPUs in 4.14.12, but I

That's not a rumor and it can be easily verified either here:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-4.14/x86-cpu-x86-pti-do-not-enable-pti-on-amd-processors.patch

or in mainline git, respectively.

-h