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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT 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 AFE8DC67839 for ; Wed, 12 Dec 2018 19:35:37 +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 79B942086D for ; Wed, 12 Dec 2018 19:35:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HbgMWgSo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 79B942086D 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: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=CqzKPf1iZn4lndhOQFUCkuQHlBS6HPyk3ughUDKHfdI=; b=HbgMWgSoaUQlRr 13+5CQf0IZBFyBF+kpl54zL4S+QsY4S2EcXQXkXYY7ZE/Edc4Vy5w/KgZvShDyAzejimb12EEbaN9 2qs1wiAJsz5sl6LbHSDhP7Kqq7zr+d6vz2WJ5yVmhiWZWxj5OGULv9Vq76/IIYQARzb0NcLIwFWd9 2IWxQdP9YJ0je4w4+J3dU/7Pq6mWu4pHm+B/TbRMcYhc+tlc5MmwYXlwexmj/qwu3W5UIDoxLpx4O 0T1Gapow1Ln8HMohV0JRCuKmlTEgyeV5+Hc11Z2doacO5N+0J1syiBGHcrTpNnODcBhOK87f0QJ4i Iml/10JC5fdi4BI+ZQwQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gXAIC-0007aY-0t; Wed, 12 Dec 2018 19:35:36 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gXAI8-0007Zu-UM for linux-arm-kernel@lists.infradead.org; Wed, 12 Dec 2018 19:35:34 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5F7C0A78; Wed, 12 Dec 2018 11:35:21 -0800 (PST) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2E7BE3F59C; Wed, 12 Dec 2018 11:35:21 -0800 (PST) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id AC0201AE0BDC; Wed, 12 Dec 2018 19:35:44 +0000 (GMT) Date: Wed, 12 Dec 2018 19:35:44 +0000 From: Will Deacon To: Kristina Martsenko Subject: Re: [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support Message-ID: <20181212193544.GB22013@edgewater-inn.cambridge.arm.com> References: <20181207183931.4285-1-kristina.martsenko@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181207183931.4285-1-kristina.martsenko@arm.com> User-Agent: Mutt/1.11.1+30 (d10eec459b35) () X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181212_113532_995293_5C745251 X-CRM114-Status: GOOD ( 12.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Andrew Jones , linux-kernel@vger.kernel.org, Jacob Bramley , Ard Biesheuvel , Marc Zyngier , Catalin Marinas , Adam Wallis , Suzuki K Poulose , Richard Henderson , Christoffer Dall , kvmarm@lists.cs.columbia.edu, Cyrill Gorcunov , Ramana Radhakrishnan , Amit Kachhap , Dave P Martin , linux-arm-kernel@lists.infradead.org, Kees Cook 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 Hi Kristina, On Fri, Dec 07, 2018 at 06:39:18PM +0000, Kristina Martsenko wrote: > This series adds support for the ARMv8.3 pointer authentication extension, > enabling userspace return address protection with GCC 7 and above. I've pushed this out to for-next/ptr-auth with the following changes: * Rebased onto for-next/core * Dropped the GET/SET ptrace requests for now, due to fragile regset usage * Moved the user key state from thread_info to thread_struct * Removed use of VA_BITS for the PAC mask (doesn't work with 52-bit user VAs) * Added a patch to use _BITUL for the bit definitions in sysreg.h * Tidied up the HWCAP generation [need to run this past Suzuki] * Reduced the number of CPU caps from 6 to 4 [also need to run past Suzuki] * Added Reviewed-by tags I've not merged it into for-next/core yet, because it could use some testing and review first. Cheers, Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel