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=-2.4 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 B21B4C65BAE for ; Thu, 13 Dec 2018 18:01:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8AFA520870 for ; Thu, 13 Dec 2018 18:01:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8AFA520870 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-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729147AbeLMSBS (ORCPT ); Thu, 13 Dec 2018 13:01:18 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:39562 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727815AbeLMSBS (ORCPT ); Thu, 13 Dec 2018 13:01:18 -0500 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 677B8A78; Thu, 13 Dec 2018 10:01:17 -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 3610C3F575; Thu, 13 Dec 2018 10:01:17 -0800 (PST) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 07AD51AE0838; Thu, 13 Dec 2018 18:01:40 +0000 (GMT) Date: Thu, 13 Dec 2018 18:01:40 +0000 From: Will Deacon To: Kristina Martsenko Cc: linux-arm-kernel@lists.infradead.org, Adam Wallis , Amit Kachhap , Andrew Jones , Ard Biesheuvel , Catalin Marinas , Christoffer Dall , Cyrill Gorcunov , Dave P Martin , Jacob Bramley , Kees Cook , Marc Zyngier , Mark Rutland , Ramana Radhakrishnan , Richard Henderson , Suzuki K Poulose , kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support Message-ID: <20181213180140.GA18185@edgewater-inn.cambridge.arm.com> References: <20181207183931.4285-1-kristina.martsenko@arm.com> <20181212193544.GB22013@edgewater-inn.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181212193544.GB22013@edgewater-inn.cambridge.arm.com> User-Agent: Mutt/1.11.1+30 (d10eec459b35) () Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 12, 2018 at 07:35:44PM +0000, Will Deacon wrote: > 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. This is now in for-next/core, so I've removed the for-next/ptr-auth staging branch. Will