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=-9.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 5F45BC4363D for ; Fri, 25 Sep 2020 11:41:36 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 C343C2083B for ; Fri, 25 Sep 2020 11:41:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Klre9YM3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C343C2083B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=u6MBYVyZAOCsYZbr6+keT9L2LAvSbg6Jqg80UkpTumY=; b=Klre9YM3Vz4pvqmSVnuatY5X9 gbr4MqREsbsXM2o5VjD919N8j45AR2WU10CNWEN1sI/iYPP1qGSqzlN/ph2WLdjSiwrNhr1d4x5jR RvLlqZWkzVGI1sE09R+A8i0fTRfKNIYAxG+q0E4157xAwoxkD6g8hxcIrfm0rNwzBGd4hBMLm9tbl zyg7Gu6Ey0BNSCXB3rlxp0jnLiHmjNYgOfqyO0rIR4Zva6SqufIXcm951LvQFLfs9aE4fqhsABWYm ciOilm1irvhAnwzLhQfJlB5/VE1r3GPuJGqV6Sf664zmxsmmvzVxFDmNkSeXDKbcLK6Plte8eJXUg PNHvExrAA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLm5C-0007EL-Mg; Fri, 25 Sep 2020 11:40:10 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLm54-0007AB-Ew for linux-arm-kernel@lists.infradead.org; Fri, 25 Sep 2020 11:40:04 +0000 Received: from gaia (unknown [31.124.44.166]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0AAE82075E; Fri, 25 Sep 2020 11:39:58 +0000 (UTC) Date: Fri, 25 Sep 2020 12:39:56 +0100 From: Catalin Marinas To: Andrey Konovalov Subject: Re: [PATCH v3 36/39] kasan, arm64: print report from tag fault handler Message-ID: <20200925113956.GH4846@gaia> References: <6296d106e480eed388f86e3c8fce10a14bead75a.1600987622.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <6296d106e480eed388f86e3c8fce10a14bead75a.1600987622.git.andreyknvl@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200925_074002_620317_1E334722 X-CRM114-Status: GOOD ( 12.65 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, Marco Elver , Elena Petrova , Kevin Brodsky , Will Deacon , Branislav Rankov , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , Evgenii Stepanov , Andrey Ryabinin , Andrew Morton , Vincenzo Frascino , Dmitry Vyukov 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 Fri, Sep 25, 2020 at 12:50:43AM +0200, Andrey Konovalov wrote: > Add error reporting for hardware tag-based KASAN. When CONFIG_KASAN_HW_TAGS > is enabled, print KASAN report from the arm64 tag fault handler. > > SAS bits aren't set in ESR for all faults reported in EL1, so it's > impossible to find out the size of the access the caused the fault. > Adapt KASAN reporting code to handle this case. > > Signed-off-by: Andrey Konovalov > Co-developed-by: Vincenzo Frascino > Signed-off-by: Vincenzo Frascino Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel