From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 689B3C433DB for ; Fri, 12 Feb 2021 10:44:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3373064E65 for ; Fri, 12 Feb 2021 10:44:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230152AbhBLKnw convert rfc822-to-8bit (ORCPT ); Fri, 12 Feb 2021 05:43:52 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:50080 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230393AbhBLKnO (ORCPT ); Fri, 12 Feb 2021 05:43:14 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-115-2rM-qm06PAG36k1cQRmO6Q-1; Fri, 12 Feb 2021 10:41:04 +0000 X-MC-Unique: 2rM-qm06PAG36k1cQRmO6Q-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 12 Feb 2021 10:41:03 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Fri, 12 Feb 2021 10:41:03 +0000 From: David Laight To: 'Nathan Chancellor' , Jian Cai CC: "linux-kernel@vger.kernel.org" , Kees Cook , Arnd Bergmann , Catalin Marinas , Masahiro Yamada , "Daniel Palmer" , "ndesaulniers@google.com" , Russell King , "clang-built-linux@googlegroups.com" , "linux-security-module@vger.kernel.org" , "manojgupta@google.com" , =?iso-8859-1?Q?Andreas_F=E4rber?= , "llozano@google.com" , James Morris , Will Deacon , Ard Biesheuvel , "linux-arm-kernel@lists.infradead.org" , "Serge E. Hallyn" Subject: RE: [PATCH] ARM: Implement Clang's SLS mitigation Thread-Topic: [PATCH] ARM: Implement Clang's SLS mitigation Thread-Index: AQHXAQPpjAt19oU7EUuQ7rTdUOVK86pUVCnA Date: Fri, 12 Feb 2021 10:41:03 +0000 Message-ID: <3f61af0eee9b495e8e8c032902d033c5@AcuMS.aculab.com> References: <20210212051500.943179-1-jiancai@google.com> <20210212055508.GA3822196@ubuntu-m3-large-x86> In-Reply-To: <20210212055508.GA3822196@ubuntu-m3-large-x86> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: > > on -mharden-sls=all, which mitigates the straight-line speculation > > vulnerability, or more commonly known as Spectre, Meldown. > > ^ I would drop "or" here > ^ drop comma, > use "and", > typo: "Meltdown" > > Although, is that a fair statement? SLS is not called Spectre or > Meltdown by ARM, it is a speculative processor vulnerabilty. It > might just be better to drop eerything after the first comma (although > maybe that is just being pedantic). or replace with: (speculative execution of the instruction following some unconditional jumps). Which will save a lot of people looking up what it means. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)