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=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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 8A902C10F13 for ; Tue, 16 Apr 2019 14:13:54 +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 5B1C9223DA for ; Tue, 16 Apr 2019 14:13:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bChszU+r"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="eN8163vG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5B1C9223DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de 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=vlsBjYl+Km18zB2rfgAy8bITM+/8C4Y2KTSsR66g4QU=; b=bChszU+rt7Xobf kkLBH0y6fUh8t17xZBX5vKTr7F8EA5QXvo8rhOELHEElTBrZhCOjtM+udz1CZkDBa2dqCpE0UmpNI 6syyVhTnLvW9dXvDmqoawb6O6qhou69wFmRvI4GXgngoGtJnZVUi+6lF6G9FSgTRbI/zNYW9yoffR fY1GpuUCKkLlPWX56ZAZpk4C5pcT+suyTH7Z9xnyEo6PGaE5RIAnjDZtyQGQYIdQtbHhQjlsel5uS GD5OYkrUM/YC6hLYxg6ISJx+BBVfxhNhE4aef2+X8ja1Tx3XN6YcN3jONBuHdEX16Z5jtVG+IP4cK xICTtRtDS5IfS7QUZa/Q==; 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 1hGOqJ-0001ZE-Js; Tue, 16 Apr 2019 14:13:47 +0000 Received: from mail.skyhub.de ([5.9.137.197]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hGOqC-0001UM-Gd for linux-arm-kernel@lists.infradead.org; Tue, 16 Apr 2019 14:13:43 +0000 Received: from zn.tnic (p200300EC2F0D690030B3A6530520175E.dip0.t-ipconnect.de [IPv6:2003:ec:2f0d:6900:30b3:a653:520:175e]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id F12A61EC014A; Tue, 16 Apr 2019 16:13:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1555424019; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=MjSrdPG/qxoojY+cSE8D0mGCXzVEJH/6dETPRQXfO5M=; b=eN8163vGykLsHoaVJy4OVNqUnXuafeDFkAPyWXWlwU1w2O+A+q/q0yFjvSNJwMLZONvbJQ ch/I/d6cp/pPXq1esWfJ1lnYM9hf3Qziq9fTkzspTsda1x2XxB9dEg1nFOrWxz/yClEm9i DpFmzA4Snh7NNveygCgCT8NWdB2G5wg= Date: Tue, 16 Apr 2019 16:13:35 +0200 From: Borislav Petkov To: Josh Poimboeuf Subject: Re: [PATCH v2 1/5] cpu/speculation: Add 'mitigations=' cmdline option Message-ID: <20190416141335.GH31772@zn.tnic> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190416_071341_655325_121B59C4 X-CRM114-Status: GOOD ( 10.62 ) 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: Peter Zijlstra , Benjamin Herrenschmidt , Heiko Carstens , Paul Mackerras , "H . Peter Anvin" , Ingo Molnar , Andrea Arcangeli , linux-s390@vger.kernel.org, Michael Ellerman , x86@kernel.org, Will Deacon , Steven Price , Linus Torvalds , Catalin Marinas , Waiman Long , linux-arch@vger.kernel.org, Jon Masters , Jiri Kosina , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Phil Auld , Greg Kroah-Hartman , Randy Dunlap , linux-kernel@vger.kernel.org, Tyler Hicks , Martin Schwidefsky , linuxppc-dev@lists.ozlabs.org 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 On Fri, Apr 12, 2019 at 03:39:28PM -0500, Josh Poimboeuf wrote: > diff --git a/kernel/cpu.c b/kernel/cpu.c > index 38890f62f9a8..aed9083f8eac 100644 > --- a/kernel/cpu.c > +++ b/kernel/cpu.c > @@ -2320,3 +2320,18 @@ void __init boot_cpu_hotplug_init(void) > #endif > this_cpu_write(cpuhp_state.state, CPUHP_ONLINE); > } > + > +enum cpu_mitigations cpu_mitigations __ro_after_init = CPU_MITIGATIONS_AUTO; > + > +static int __init mitigations_cmdline(char *arg) Forgot the verb: "mitigations_parse_cmdline". -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel