From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946343AbXD3Q0v (ORCPT ); Mon, 30 Apr 2007 12:26:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423624AbXD3Q0V (ORCPT ); Mon, 30 Apr 2007 12:26:21 -0400 Received: from ns2.suse.de ([195.135.220.15]:37673 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946404AbXD3QZd (ORCPT ); Mon, 30 Apr 2007 12:25:33 -0400 From: Andi Kleen Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg) To: "Eric W. Biederman" Subject: Re: [PATCH 01/12] x86_64: Allow fixmaps to be used with the initial page table. Date: Mon, 30 Apr 2007 18:23:10 +0200 User-Agent: KMail/1.9.6 Cc: virtualization , linux-kernel@vger.kernel.org, "H. Peter Anvin" , Dave Jones , Andrew Morton , Jeremy Fitzhardinge References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200704301823.11150.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 30 April 2007 17:48:13 Eric W. Biederman wrote: > > This patch preallocates the intermediate page table entries so that > all that is needed to setup a fixmap is to fill in the appropriate > pte. > > By doing this modern hardware that uses memory mapped access can be > talked to early in boot through a fixmap. I'll take 1-4 after the .22 merge; a little too experimental right now -Andi >