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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 DD8F3C33C99 for ; Tue, 7 Jan 2020 11:18:59 +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 A67272081E for ; Tue, 7 Jan 2020 11:18:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ESOWtC4F" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A67272081E 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-Type: Content-Transfer-Encoding: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=338Wa6UIm34sr78Itdi/UHOb/bJRNOrmRU2h+na72kY=; b=ESOWtC4FAeuzmr9n6dXendJLc KfqjQpZNfV7MQzoxSWWcEM1R2x3ZSfaRj7owIHjpy9F5fjeI6iHiLvPY8RxJQG6hnamnXSSQACWSo OS1Mk+ZlGHaQj01mJ6sdrAC9QQOu2t2gt4CPYM4ow4vjy2hOTlUMtUJViSV5BT8agaNCBlUk02FyO FHjuKbPm6dPaCW1p9VN5TAO7XC41KLUABY7sHLy/62IxZBnHHgoEB1amQzYmBYmcHiGcaFBfLu9hm v9JbHiSyvDPn0m4gNjSB9Qd4zKaV7GlDH6a3YgzROzIwa2jbVY1vOL7h2byBeBH60oeZWXgOBv+JH AelIaseWw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iomsu-0000g7-LV; Tue, 07 Jan 2020 11:18:52 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iomsr-0000fb-8l for linux-arm-kernel@lists.infradead.org; Tue, 07 Jan 2020 11:18:50 +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 83735328; Tue, 7 Jan 2020 03:18:48 -0800 (PST) Received: from [10.1.197.1] (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D4BD33F534; Tue, 7 Jan 2020 03:18:46 -0800 (PST) Subject: Re: [PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup To: Amit Daniel Kachhap , linux-arm-kernel@lists.infradead.org References: <1576486038-9899-1-git-send-email-amit.kachhap@arm.com> <1576486038-9899-6-git-send-email-amit.kachhap@arm.com> From: Suzuki Kuruppassery Poulose Message-ID: Date: Tue, 7 Jan 2020 11:18:44 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <1576486038-9899-6-git-send-email-amit.kachhap@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200107_031849_358058_D2626C9F X-CRM114-Status: GOOD ( 12.29 ) 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: Mark Rutland , Kees Cook , Ard Biesheuvel , Catalin Marinas , Richard Henderson , Kristina Martsenko , James Morse , Ramana Radhakrishnan , Mark Brown , Vincenzo Frascino , Will Deacon , Dave Martin Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 16/12/2019 08:47, Amit Daniel Kachhap wrote: > This patch allows __cpu_setup to be invoked with one of these flags, > ARM64_CPU_BOOT_PRIMARY, ARM64_CPU_BOOT_LATE or ARM64_CPU_RUNTIME. > This is required as some cpufeatures need different handling during > different scenarios. > > The input parameter in x0 is preserved till the end to be used inside > this function. > > There should be no functional change with this patch and is useful > for the subsequent ptrauth patch which utilizes it. Some upcoming > arm cpufeatures can also utilize these flags. > > Signed-off-by: Amit Daniel Kachhap You may add: Suggested-by: James Morse Reviewed-by: Suzuki K Poulose _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel