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 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=-6.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 6EC73C433FE for ; Tue, 21 Sep 2021 07:04:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2E52961184 for ; Tue, 21 Sep 2021 07:04:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 2E52961184 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=iT7OxA7Wh7XBJ1DzqCIjWrs8dLeXW4Y/PcN3P92bwvQ=; b=b8zJ0GbnePDw/VV1Qs+qGjQi4m COGEuFNLFsUH4D1xMvhcmMZdaQkyReomkM9PAnZaQS7dhhti6J83GzB02RdC2R9hcpNrhKAJwmzfZ KJLN2kbddG/Cua84N+7U5rv4eaMrG3kHfLrwbKr88apvZ5MEv9uhE/nymagGJxe4+lWdhqflNc1dt B2UQMHIjreDpyaUOolhcnqG91VGG4IK7C3luGC0MgRvgHUVOX8QzzfE1Q4kP9Wy/+tWwDyad2cywT ElpN23pgEGfhZzC389a958ERDJ7z6XU4SUtSCNXw8N83cPUSH/5hrb7A+gt/7+604Hyml55WsYn7N 35NcdO0g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSZo1-003kQa-Al; Tue, 21 Sep 2021 07:03:05 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mSZnx-003kPz-N5 for linux-arm-kernel@lists.infradead.org; Tue, 21 Sep 2021 07:03:03 +0000 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-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210921_000301_855339_FF7703B2 X-CRM114-Status: GOOD ( 18.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel