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=-2.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED, USER_AGENT_NEOMUTT 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 58B64C4360F for ; Thu, 4 Apr 2019 16:49:27 +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 2177F2075E for ; Thu, 4 Apr 2019 16:49:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cQJGvr8D" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2177F2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.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-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=69+vkj9S+XvBdVFh16JYYf6kLGc6kyiN5JOCb5pcTFQ=; b=cQJGvr8D3rMk58 jGvOWEAsmWsg1D9GukBc+5spcrZWvenASOuy0kwmU3DbdCBZcyKF0AADqWLF/kKafjy5Z6qKd1/0W JCgP3lfmCJy6oWJUskjCjzQRYHKuwRHFQICjzChyu15wyXpVu3xI5S0TyuI5WZlNEiY31UzAOYkCq pWk1Wdqb34XONf8U+Vk1euHPhEG2nKeXAck38uJaXs+bQiz2lt6roFKoXYiKzic0XrYFedVZy1gCO XyUm+kjuAdR2YJ+TlZdWgmimsdH7YmnAPoN50zy4DJ/H61e3UCLCzzklV4QweLB1ydnIxLa9RPwwS KlSqlN067wzNuoBaW9DQ==; 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 1hC5YJ-0002UC-Uf; Thu, 04 Apr 2019 16:49:23 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hC5YH-0002Tr-3X for linux-arm-kernel@lists.infradead.org; Thu, 04 Apr 2019 16:49:22 +0000 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 92FC081DE0; Thu, 4 Apr 2019 16:49:20 +0000 (UTC) Received: from treble (ovpn-125-158.rdu2.redhat.com [10.10.125.158]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DD2BB80FE; Thu, 4 Apr 2019 16:49:15 +0000 (UTC) Date: Thu, 4 Apr 2019 11:49:08 -0500 From: Josh Poimboeuf To: linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC 1/5] cpu/speculation: Add 'cpu_spec_mitigations=' cmdline options Message-ID: <20190404164908.slgmhnrsbnjhmq5r@treble> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 04 Apr 2019 16:49:20 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190404_094921_163788_ABE3AF48 X-CRM114-Status: GOOD ( 12.40 ) 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 , Linus Torvalds , Catalin Marinas , Waiman Long , linux-arch@vger.kernel.org, Jon Masters , Jiri Kosina , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , 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 Thu, Apr 04, 2019 at 11:44:11AM -0500, Josh Poimboeuf wrote: > Keeping track of the number of mitigations for all the CPU speculation > bugs has become overwhelming for many users. It's getting more and more > complicated to decide which mitigations are needed for a given > architecture. Complicating matters is the fact that each arch tends to > their own custom way to mitigate the same vulnerability. ... tends to _have_ its own custom way ... -- Josh _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel