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=-8.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 36C77C433DB for ; Sat, 23 Jan 2021 14:29:36 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 E4DFA22EBE for ; Sat, 23 Jan 2021 14:29:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E4DFA22EBE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com 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=merlin.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=SdEqaHlmuesGHVrarF5/N3ohA7IerFX9baEa6by+JDk=; b=eJGzJhbCrZzmlZJHRZJG2jQBJ Bxnt4FN9A9WshoZ7UgurkglboHO/EBjJqZKjk5swsuL22dXUSSltMKb5yZxT0utGFGsrRj6Gi26YW 6F6cVWopWwaBigS5DVv6rPe1gDZGbZrtoTgjfEEzWxw+vHX7AKjwVNH31TnryTsLbfUBU9vJH5MY5 CXFIwqI6P8FgUkYzmsBm/K6RNmFeDUuITwA9xIwDnEKJa1o19rjsYkUwOMl2bqKCkMdH69AUbw9O1 dOeWwrvolVNRwRTHdHRSSkqPRFGMV+yqHu+etHIXcyP03C4cy00TGPBjD5ijUouhjRqli1SYHc6Zd QM1kMiI2Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l3Jtf-0007JT-Jx; Sat, 23 Jan 2021 14:28:15 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l3Jtd-0007Iv-K8 for linux-arm-kernel@lists.infradead.org; Sat, 23 Jan 2021 14:28:14 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1BA3B22EBE; Sat, 23 Jan 2021 14:28:09 +0000 (UTC) Date: Sat, 23 Jan 2021 14:28:07 +0000 From: Catalin Marinas To: Marc Zyngier Subject: Re: [PATCH v4 21/21] arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line Message-ID: References: <20210118094533.2874082-1-maz@kernel.org> <20210118094533.2874082-22-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210118094533.2874082-22-maz@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210123_092813_723053_D1FE78E7 X-CRM114-Status: GOOD ( 10.09 ) 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 , Jing Zhang , Prasad Sodagudi , Srinivas Ramana , Suzuki K Poulose , Alexandru Elisei , linux-kernel@vger.kernel.org, Ard Biesheuvel , James Morse , Julien Thierry , Ajay Patil , kernel-team@android.com, David Brazdil , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org 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 Mon, Jan 18, 2021 at 09:45:33AM +0000, Marc Zyngier wrote: > In order to be able to disable Pointer Authentication at runtime, > whether it is for testing purposes, or to work around HW issues, > let's add support for overriding the ID_AA64ISAR1_EL1.{GPI,GPA,API,APA} > fields. > > This is further mapped on the arm64.nopauth command-line alias. > > Signed-off-by: Marc Zyngier Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel