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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,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 B2B6DC64EB8 for ; Thu, 4 Oct 2018 07:46:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B34721470 for ; Thu, 4 Oct 2018 07:46:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="I9cmM1oy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B34721470 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org 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 S1727701AbeJDOiI (ORCPT ); Thu, 4 Oct 2018 10:38:08 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48280 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727476AbeJDOiH (ORCPT ); Thu, 4 Oct 2018 10:38:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=eZBDnwGr9oVNA7kA7h5byR297Q47nz9SxD+TMpGg3PE=; b=I9cmM1oyIS4RlrOx5ra2WHXbD Z5dpiQoxGh8ftfmtuPIdbLeJBLpIiu4l/CR8LC53OG5wmsj7qBMk37yEVpUS5kENd+a9BAEF6/seW I4gGZgQAsTmsz8of3K3FNSbvt0C5lMIubezIPeKvaFe0A6rZBSG/nx05KaYUSRl5aKi2BmHIy5iV1 6cAd6fn0WWn9QxbBQEXW0p8DtYYTJ90CEpbcchf1Ds8cvGlIpJ6Hn1L0lZAc7ftXRIocJ3MgdOjZT Da6qRCXhFaN7rEc1faF5b20LpsCd4DW1eoOd5SWkx8OL2/plaika+zt4pWmJ39eW2bdMuhkx1OuHP ySWUxWiXg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1g7yKi-00018M-E7; Thu, 04 Oct 2018 07:46:04 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E3EFA202666EC; Thu, 4 Oct 2018 09:37:19 +0200 (CEST) Date: Thu, 4 Oct 2018 09:37:19 +0200 From: Peter Zijlstra To: Nadav Amit Cc: Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, x86@kernel.org, David Woodhouse , Andy Lutomirski Subject: Re: [RFC] x86/cpu_entry_area: move part of it back to fixmap Message-ID: <20181004073719.GD19272@hirez.programming.kicks-ass.net> References: <20181004045948.129142-1-namit@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181004045948.129142-1-namit@vmware.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 03, 2018 at 09:59:48PM -0700, Nadav Amit wrote: > This patch proposes to do something different: break > it into two. One part holds code+data that is needed for the entry > (trampoline code, entry stack and TSS), which is mapped in the fixmap. > The other part holds the exception_stacks, debug store and buffers, and > is left in its current (new) position. > The name > "cpu_entry_area_aux" for the second area is awful (ideas are welcomed), How about: cpu_data_area ? Since none of that is required for the entry, that should also not be part of its name.