Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp1002510imu; Fri, 4 Jan 2019 11:04:54 -0800 (PST) X-Google-Smtp-Source: ALg8bN7ccj24C9/hCYLQBviFMyPOIUem+8U4vZQz4IaKIXqT+PoQo4F2wzsCuEcZ2hq/wIkKB5Nj X-Received: by 2002:a63:ae01:: with SMTP id q1mr2578221pgf.402.1546628694708; Fri, 04 Jan 2019 11:04:54 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1546628694; cv=none; d=google.com; s=arc-20160816; b=ggItxkqxIv+2etf+nHsd7ObYfGpf65wWhlcF7EeV6XWvWFZKMmZNitysDANjNYjmbz GDf6PGF0NrDhmUItrqsASk8O5sH5jt2CJjBVwPQYdzgWEYyrXkDKv+8XTjhI5fmsB9HQ HfcBvyQtCtaro4j0ijEoEQuVeBL6OpZbNN3NxRsVMwMe3sNQlEXNs4RefubhGx/MERlq ahZn+fg4ATNKmX+3zEYuX2Akvi5m8dpQ/r9CexBfRaqCDYiOWOvhwFI6j7RJj+PJ0BKp 5Fj7Tf2nW8SWCgg9c7DPo1Ybom/FZzf7/ZeGWG+AzZZOhTKFdEY20RlRO7UqjZN2yvDJ f/Rg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=o8ZbyI/C29dQwDsR+OssH7a6FWMJNFub1B2MFDa1cJA=; b=PqCa+jm3T6F6d7xs9ybBgyMF2PvjccQGIgjYhiKcn0TdnJrUaWrqOc2/Jxtx5oxb/g vO/asZVtsQfSw4XEQ7JxkS8084Kc7QX2e1La1KndXKdL3XG5vMR4p7Pd1P+S66ey24kX uPxz5rT9DiLPBEvlJkY3jDkEKwTsHKqiwIGe+pk3pJpHltSiPI00xpa+/XuOwCHkbNAS 0fiphKFg0BvabNuijS8wKr63HDZhRel/p77z9yFoZSSHz2PKW9gxDeopt7L8BoLlnH0g TuqJo8mEqKsV66k5qKjwMzmg32UMq1BRZTZoC7zUocEcQBft0WWANT2Q0moavDVRymcu FDgw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r12si23449303plo.59.2019.01.04.11.04.39; Fri, 04 Jan 2019 11:04:54 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727499AbfADR7c (ORCPT + 99 others); Fri, 4 Jan 2019 12:59:32 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:47926 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725958AbfADR7b (ORCPT ); Fri, 4 Jan 2019 12:59:31 -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 5B959EBD; Fri, 4 Jan 2019 09:59:31 -0800 (PST) Received: from [10.1.196.105] (eglon.cambridge.arm.com [10.1.196.105]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 019053F5D4; Fri, 4 Jan 2019 09:59:28 -0800 (PST) Subject: Re: [PATCH v4 6/6] arm/kvm: arm64: Add a vcpu feature for pointer authentication To: Amit Daniel Kachhap Cc: linux-arm-kernel@lists.infradead.org, Marc Zyngier , Catalin Marinas , Will Deacon , Kristina Martsenko , kvmarm@lists.cs.columbia.edu, Ramana Radhakrishnan , Dave Martin , linux-kernel@vger.kernel.org References: <1545119810-12182-1-git-send-email-amit.kachhap@arm.com> <1545119810-12182-7-git-send-email-amit.kachhap@arm.com> From: James Morse Message-ID: <1d5f5167-8606-3bda-a195-b962c99eb196@arm.com> Date: Fri, 4 Jan 2019 17:59:27 +0000 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 MIME-Version: 1.0 In-Reply-To: <1545119810-12182-7-git-send-email-amit.kachhap@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Amit, On 18/12/2018 07:56, Amit Daniel Kachhap wrote: > This is a runtime feature and can be enabled by --ptrauth option. It took me a little while to realise this was a kvmtool patch. could you put something in the patch-subject to make this obvious? e.g: https://lists.cs.columbia.edu/pipermail/kvmarm/2018-September/thread.html#32734 Thanks, James