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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B7DE5C433F5 for ; Tue, 21 Sep 2021 07:03:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96D8361183 for ; Tue, 21 Sep 2021 07:03:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230089AbhIUHE1 (ORCPT ); Tue, 21 Sep 2021 03:04:27 -0400 Received: from foss.arm.com ([217.140.110.172]:58548 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229998AbhIUHEZ (ORCPT ); Tue, 21 Sep 2021 03:04:25 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 67C2D106F; Tue, 21 Sep 2021 00:02:57 -0700 (PDT) Received: from [192.168.1.131] (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1C4BF3F719; Tue, 21 Sep 2021 00:02:53 -0700 (PDT) Subject: Re: [PATCH 0/5] arm64: ARMv8.7-A: MTE: Add asymm mode support To: Peter Collingbourne Cc: Linux ARM , Linux Kernel Mailing List , kasan-dev , Andrew Morton , Catalin Marinas , Will Deacon , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Marco Elver , Evgenii Stepanov , Branislav Rankov , Andrey Konovalov , Lorenzo Pieralisi References: <20210913081424.48613-1-vincenzo.frascino@arm.com> From: Vincenzo Frascino Message-ID: Date: Tue, 21 Sep 2021 09:03:01 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/20/21 11:29 PM, Peter Collingbourne wrote: > On Mon, Sep 13, 2021 at 1:21 AM Vincenzo Frascino > wrote: >> >> This series implements the asymmetric mode support for ARMv8.7-A Memory >> Tagging Extension (MTE), which is a debugging feature that allows to >> detect with the help of the architecture the C and C++ programmatic >> memory errors like buffer overflow, use-after-free, use-after-return, etc. > > Unless I'm missing something, it looks like this only includes KASAN > support and not userspace support. Is userspace support coming in a > separate patch? > > The fact that this only includes KASAN support should probably be in > the commit messages as well. > Good catch, I forgot to mention that this series is meant only for in-kernel support. I will update the cover in the next iteration. Thanks! > Peter > -- Regards, Vincenzo