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[46.139.12.213]) by smtp.gmail.com with ESMTPSA id l20sm36151764wrb.93.2018.12.11.01.00.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 11 Dec 2018 01:00:58 -0800 (PST) Date: Tue, 11 Dec 2018 10:00:56 +0100 From: Ingo Molnar 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 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: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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