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=-15.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 CBC2DC433C1 for ; Thu, 25 Mar 2021 19:02:09 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 3520461A1A for ; Thu, 25 Mar 2021 19:02:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3520461A1A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc: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=jL/rmrUqCQzYxMyTBN4/MuKT2BwE2ON4+vcZ0OJzTDE=; b=muBy0PW8VSN93l3VQeSoPmqjZ 4FPxd3TMlsYd9OgTMf/ODYAG5RFK7HhYQ6XHLv8njZ58ad6vjI7f2kzkAC6GKGfx66D9MAXKvul/m apkBX7EliYqNeS2V/0L0qj/MnUZEwB1qG2YaQkMKS5S4tExIdPGb71BZiSK3faWN3Mq/3WKF83vI+ noCIlBbXApmnlbRscs8V2u7LIoj6Gc3KiyDJsLnq+2Yf290u8Dt7IZsC7/G7EZH73GnHnpriHVIkQ w9gZQEUweSdjI959OC6PStcLaMjOs+cDm4f/EDf7w0q3jumMibx04RZiGq7qTtgPdPrp5MqGwlkQn Ww3dtsxLA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lPVDG-0022Z7-Cn; Thu, 25 Mar 2021 19:00:10 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lPVDC-0022Yj-4k for linux-arm-kernel@lists.infradead.org; Thu, 25 Mar 2021 19:00:07 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id C21F161A1A; Thu, 25 Mar 2021 19:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616698804; bh=wU5o8wOlY4cu072depivx8u4+E/VuTsKsPMPDw6oquY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Me4e+DQyP4JeWghPwFIPCzBThMqdZlGXrw5AfluU0R7Ep98xkzJ2SgP4xxwAh0bl4 74a9wMJ6RIZkNz1bVLD/JWk71tCxCaO/Ti/b6BWLemM6e1MMO0IIQZfKEMKiu9IgJF +A5/6X7j/DkQbzPfCa8gaGPPKQSIWBHPZvWhq8GSQ8R8plfR1dLDwcQC1To3fqdtwR Rn8DZnObfPR0wJ0gSVdJvBFqXpPe4Iijg3qSy/w2lrEDvqZdA5NKbyUrRCpAh+XJpc 9fCvJZ+bsZif6w2/zYbQ6rA27Q7Q04qYy4WAxINi6wKLGe5vINoiyDF2AUX/o9k7mO xRJHUmy8LWOMw== Date: Thu, 25 Mar 2021 19:00:00 +0000 From: Will Deacon To: Vladimir Murzin Cc: linux-arm-kernel@lists.infradead.org, keescook@chromium.org, dave.martin@arm.com, catalin.marinas@arm.com Subject: Re: [PATCH v4 2/2] arm64: Introduce HWCAPS2_EXECONLY Message-ID: <20210325190000.GC15860@willie-the-truck> References: <20210312173811.58284-1-vladimir.murzin@arm.com> <20210312173811.58284-3-vladimir.murzin@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210312173811.58284-3-vladimir.murzin@arm.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-20210325_190006_473434_77006C13 X-CRM114-Status: GOOD ( 10.53 ) 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 Fri, Mar 12, 2021 at 05:38:11PM +0000, Vladimir Murzin wrote: > With EPAN supported it might be handy to user know that PROT_EXEC > gives execute-only permission, so advertise it via HWCAPS2_EXECONLY > > Cc: Kees Cook > Cc: Catalin Marinas > Signed-off-by: Vladimir Murzin > --- > arch/arm64/include/asm/hwcap.h | 1 + > arch/arm64/include/asm/sysreg.h | 1 + > arch/arm64/include/uapi/asm/hwcap.h | 1 + > arch/arm64/kernel/cpufeature.c | 3 +++ > arch/arm64/kernel/cpuinfo.c | 1 + > 5 files changed, 7 insertions(+) I still don't see the need for this patch. Can we avoid merging it until somebody has a use for it, please? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel