From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by kanga.kvack.org (Postfix) with ESMTP id B522A8E004D for ; Tue, 11 Dec 2018 04:01:01 -0500 (EST) Received: by mail-wm1-f69.google.com with SMTP id 77so404816wmr.5 for ; Tue, 11 Dec 2018 01:01:01 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id n12sor9112410wrv.1.2018.12.11.01.01.00 for (Google Transport Security); Tue, 11 Dec 2018 01:01:00 -0800 (PST) Date: Tue, 11 Dec 2018 10:00:56 +0100 From: Ingo Molnar Subject: Re: [tip:x86/pti] x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off Message-ID: <20181211090056.GA30493@gmail.com> References: <20181113184910.26697-1-mhocko@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, mhocko@suse.com, bp@suse.de, pasha.tatashin@soleen.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, dave.hansen@intel.com, torvalds@linux-foundation.org, hpa@zytor.com, jkosina@suse.cz, ak@linux.intel.com Cc: linux-tip-commits@vger.kernel.org * tip-bot for Michal Hocko wrote: > Commit-ID: f4abaa98c4575cc06ea5e1a593e3bc2c8de8ef48 > Gitweb: https://git.kernel.org/tip/f4abaa98c4575cc06ea5e1a593e3bc2c8de8ef48 > Author: Michal Hocko > AuthorDate: Tue, 13 Nov 2018 19:49:10 +0100 > Committer: Thomas Gleixner > CommitDate: Mon, 10 Dec 2018 22:07:02 +0100 > > x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off > [ tglx: Folded the documentation delta change ] > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -2095,6 +2095,9 @@ > off > Disables hypervisor mitigations and doesn't > emit any warnings. > + It also drops the swap size and available > + RAM limit restriction on both hypervisor and > + bare metal. > > Default is 'flush'. > > diff --git a/Documentation/admin-guide/l1tf.rst b/Documentation/admin-guide/l1tf.rst > index b85dd80510b0..2e65e6cb033e 100644 > --- a/Documentation/admin-guide/l1tf.rst > +++ b/Documentation/admin-guide/l1tf.rst > @@ -405,6 +405,9 @@ time with the option "l1tf=". The valid arguments for this option are: > > off Disables hypervisor mitigations and doesn't emit any > warnings. > + It also drops the swap size and available RAM limit restrictions > + on both hypervisor and bare metal. > + Note tha there's also some whitespace damage here: all other similar lines in this RST file start with two tabs, this one starts with 8 spaces. Thanks, Ingo