From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from userp2120.oracle.com ([156.151.31.85]) by Galois.linutronix.de with esmtps (TLS1.2:RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1f8oRe-0003fW-WF for speck@linutronix.de; Wed, 18 Apr 2018 16:52:27 +0200 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w3IEmqxH161077 for ; Wed, 18 Apr 2018 14:52:20 GMT Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp2120.oracle.com with ESMTP id 2hdrxp320n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 18 Apr 2018 14:52:20 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w3IEqJlV019721 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 18 Apr 2018 14:52:19 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w3IEqIFh030885 for ; Wed, 18 Apr 2018 14:52:18 GMT Date: Wed, 18 Apr 2018 10:52:16 -0400 From: Konrad Rzeszutek Wilk Subject: [MODERATED] Re: GPZv4 Message-ID: <20180418145216.GB9939@localhost.localdomain> References: <67ef414c-f57c-0300-973b-f8898ee4d3b1@redhat.com> <20180418024816.GA6450@localhost.localdomain> <071ce2ea-c47d-9ae7-3e66-2e14ee32b97a@redhat.com> <1c1c86c5-664b-42a4-44bb-fd8853a55e41@redhat.com> MIME-Version: 1.0 In-Reply-To: <1c1c86c5-664b-42a4-44bb-fd8853a55e41@redhat.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: speck@linutronix.de List-ID: On Wed, Apr 18, 2018 at 10:07:44AM -0400, speck for Jon Masters wrote: > On 04/18/2018 10:04 AM, speck for Thomas Gleixner wrote: > > On Wed, 18 Apr 2018, speck for Jon Masters wrote: > >> On 04/18/2018 04:54 AM, speck for Thomas Gleixner wrote: > >>> On Tue, 17 Apr 2018, speck for Konrad Rzeszutek Wilk wrote: > >>>> 2). SBB vs MDD vs SBBD. > >>>> > >>>> MDD = Memory Disambiguation Disable > >>>> SBB = Speculative Store Bypass > >>>> SBBD = Speculative Store Bypass Disable > >>>> > >>>> Thomas likes 'MDD', Jon likes 'SBB', but he is also fine with 'SBBD'. > >>> > >>> I'm fine with SBBD as well. It's the same semantics as the other knobs as > >>> it controls the mitigation. > >> > >> Great. Might I recommend keeping what I sent to Konrad (both mdd and > >> ssbd recognized), but do whichever you like Konrad ;) > >> > >>> So can we for now just start with the minimal set of auto, off, on and then > >>> hash out the prctl or not question. The big hammer is the most important > >>> piece we need to have ready for merging when the embargo is lifted. > >> > >> I've sent the big hammer patches last night. Konrad's original set with > >> a few fixes, and just does "auto", "off", "on", and tested working ok. > > > > Can we please have proper mail submitted patches? These tarballs are a > > PITA. > > Leaving the ball with Konrad to review/post when he's happy. Sure thing. Will crank on them tonight/tomorrow morning. And tomorrow night or Friday folks can rip in them. Will post them as v2!