From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754232AbZESMcw (ORCPT ); Tue, 19 May 2009 08:32:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751656AbZESMcp (ORCPT ); Tue, 19 May 2009 08:32:45 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:58614 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750778AbZESMcp (ORCPT ); Tue, 19 May 2009 08:32:45 -0400 Date: Tue, 19 May 2009 13:32:06 +0100 From: Alan Cox To: Ingo Molnar Cc: Gerd Hoffmann , Jeremy Fitzhardinge , Xen-devel , the arch/x86 maintainers , Linux Kernel Mailing List , Jesse Barnes , Jan Beulich , "H. Peter Anvin" , Thomas Gleixner , Linus Torvalds , "Eric W. Biederman" Subject: Re: [Xen-devel] Re: [GIT PULL] xen /proc/mtrr implementation Message-ID: <20090519133206.173a2ddf@lxorguk.ukuu.org.uk> In-Reply-To: <20090519122623.GD14305@elte.hu> References: <4A0DFF78.6000501@goop.org> <20090515202250.0f1218ef@jbarnes-g45> <4A10EAC4.9070701@goop.org> <20090518085902.GE10687@elte.hu> <4A11A3F8.1010202@goop.org> <20090519095918.GA11790@elte.hu> <4A12A46A02000078000017E1@vpn.id2.novell.com> <20090519110837.GA10548@elte.hu> <4A12A05C.6050004@redhat.com> <20090519122623.GD14305@elte.hu> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.14.7; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > - or introduce its own hypercall API based administration API, > without bothering the guest kernel with crap. Trivially patch Xorg > to make use of it and that's it. PCI pass through mixed with that isn't going to be fun and PCI pass through is one area where a lot of the MTRR manipulation is meaningful and valid (and can be handled for the guest). I really don't see why rd/wrmsr processing isn't sufficient for this Alan