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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 5EED3C4360C for ; Fri, 4 Oct 2019 10:35:19 +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 3622E207FF for ; Fri, 4 Oct 2019 10:35:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RNteWHyB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3622E207FF 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+infradead-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=bombadil.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:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Q+xHAwjaii4DvSVIlm0uYfo2keSr/WOWNZffnEbueUY=; b=RNteWHyB1ZGfSX PHD54TpW85D0fx0knvh6wthPj1z5dLKBd9d0MZTwVvgaPGY7UF5gVbWKb40X/ZhrldnXXw7Rg0l2E JmWt5pecbEW1Jq8fe9LwjbFNpmevAAVbutxqP2PxHlCcFHcJzpdEFdd8Cd56HOOrPIGi87/ZI3PVG h7f427KNXnXRm3nWrDbtIFFMaumhO2xMvsHOdx4AqXODXtq+yUVn4IYXMMUtd9C6zkNeCoJmiyTvY B5kWJAtWewKxxGKADABXAr/VDtYEMJiQj3GxJQUkr+z1Yj50OZ3od/Nr+bmHYB/W6GtwA4POILb8J frfrQw5EkrUpxB+kWIBA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGKva-0008Lw-Kt; Fri, 04 Oct 2019 10:35:14 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iGKvX-00085z-BM for linux-arm-kernel@lists.infradead.org; Fri, 04 Oct 2019 10:35:12 +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 5697515BE; Fri, 4 Oct 2019 03:35:07 -0700 (PDT) Received: from [10.1.34.132] (unknown [10.1.34.132]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1850B3F706; Fri, 4 Oct 2019 03:35:05 -0700 (PDT) Subject: Re: [PATCH] ARM: NOMMU: Fix exc_ret for XIP To: afzal mohammed , linux@armlinux.org.uk References: <1570102888-13426-1-git-send-email-vladimir.murzin@arm.com> <20191004005616.GA7046@afzalpc> From: Vladimir Murzin Message-ID: <8b9cdb77-9215-a494-e1d7-46fba75c069d@arm.com> Date: Fri, 4 Oct 2019 11:35:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20191004005616.GA7046@afzalpc> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191004_033511_431529_7165885F X-CRM114-Status: GOOD ( 11.68 ) 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: sza@esh.hu, linux-arm-kernel@lists.infradead.org, alexandre.torgue@st.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/4/19 1:56 AM, afzal mohammed wrote: > On Thu, Oct 03, 2019 at 12:41:28PM +0100, Vladimir Murzin wrote: > >> It was reported that 72cd4064fcca "NOMMU: Toggle only bits in >> EXC_RETURN we are really care of" breaks NOMMU+XIP combination. >> It happens because saved EXC_RETURN gets overwritten when data >> section is relocated. >> >> The fix is to propagate EXC_RETURN via register and let relocation >> code to commit that value into memory. >> >> Fixes: 72cd4064fcca ("ARM: 8830/1: NOMMU: Toggle only bits in EXC_RETURN we are really care of") > > Thanks Vladimir, cc stable as well ? I believe they they watch "Fixes" tag ;) Cheers Vladimir > > Regards > afzal > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel