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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 D0BC2C433F5 for ; Fri, 24 Aug 2018 17:08:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A1942098B for ; Fri, 24 Aug 2018 17:08:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=purestorage.com header.i=@purestorage.com header.b="FSRYwW+v" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8A1942098B Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=purestorage.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727610AbeHXUoO (ORCPT ); Fri, 24 Aug 2018 16:44:14 -0400 Received: from mail-lf1-f52.google.com ([209.85.167.52]:43540 "EHLO mail-lf1-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726391AbeHXUoO (ORCPT ); Fri, 24 Aug 2018 16:44:14 -0400 Received: by mail-lf1-f52.google.com with SMTP id h64-v6so5704117lfi.10 for ; Fri, 24 Aug 2018 10:08:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=purestorage.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=yUfcJ+Bqgppto5dxuzgmtd0d+gtbEj/nBoLQWXosG64=; b=FSRYwW+v79avpYXl9bxcVdIdJ7ylHe/oEcwX43B+4aogYNljzjxDsuvUaWSdn8JBST 6V5PFuDXlckrmeFdZn+HKMpm+yyU4peAT8t4gfj06hCAJ09HVPngmB1RQWdDZOUDhlPp iEbgAEAIKt373ujBGA+FGm7EjgjNBY0AM8EkY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=yUfcJ+Bqgppto5dxuzgmtd0d+gtbEj/nBoLQWXosG64=; b=O34KSXeN2qjSsTfrm40dTc70pxXXYrKw+cs1anoloNZY7UlNzFs9Eaq27G2hurHK12 JOLsSE3Nd/FqJtCAkeCIF/Vw/1f8nULDhJzeDCaQjYqwElQN0y5tux+UVZr5G3G79l59 aJNr0KHNq9RfKBwnv0XKyes5CfwPT/diySAighFZv7KqfSLLh1TRTb/tP8zNe+H9xyCu PDY67N5Mfs1fOkmBJ1Kjz02f9aYPYpETbNlhoa7lXWNkX4xXjj5mZMXJsFx0dKkGJA2B be9kwdsDDeV8PH1tyc5JM1HMMyhL1LQWQ9m+0sf1CGUKitCNid8GkMvMyiaQeEyXlvCV hX9g== X-Gm-Message-State: APzg51DkPh8nllulQHEjIbwZ+qcEQaT/sSjlzPcyZiYCYX4mbm6VL8Yz zlDWgGj1r8OU3f8mgAUezVwL9vS/geHkSJpWCBqzyw== X-Google-Smtp-Source: ANB0VdY5dYQipRyS9a6jI/iYawhRUsS8EG/89h9NtsqdMGOMr6WEIcaiRgf+n903zB377rPTuPXNwGDzHGUhqjImqKY= X-Received: by 2002:a19:2a91:: with SMTP id q17-v6mr1983244lfq.74.1535130521525; Fri, 24 Aug 2018 10:08:41 -0700 (PDT) MIME-Version: 1.0 References: <20171215092305.994559179@linuxfoundation.org> <20171215092311.347628971@linuxfoundation.org> <1535129126.2902.36.camel@codethink.co.uk> In-Reply-To: <1535129126.2902.36.camel@codethink.co.uk> From: Roland Dreier Date: Fri, 24 Aug 2018 10:08:28 -0700 Message-ID: Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" To: Ben Hutchings , Greg Kroah-Hartman Cc: LKML , stable@vger.kernel.org, matt@codeblueprint.co.uk, bp@suse.de, Andrew Morton , Andy Lutomirski , luto@kernel.org, Ard Biesheuvel , bp@alien8.de, brgerst@gmail.com, davej@codemonkey.org.uk, dvlasenk@redhat.com, "H. Peter Anvin" , Linus Torvalds , Peter Zijlstra , sai.praneeth.prakhya@intel.com, sds@tycho.nsa.gov, Thomas Gleixner , toshi.kani@hp.com, linux-efi@vger.kernel.org, Ingo Molnar , Yazen.Ghannam@amd.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > See > . Thanks! I'm not using SGI UV and I'm not using kexec, so I guess I sidestepped most of those issues. Greg, I think we need to unrevert the cpa->pfn change (otherwise the L1TF fix probably gets pretty messy) and I guess pull in the other patches that Ben mentions. - R.