From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759791AbZE0KOi (ORCPT ); Wed, 27 May 2009 06:14:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756414AbZE0KOa (ORCPT ); Wed, 27 May 2009 06:14:30 -0400 Received: from rv-out-0506.google.com ([209.85.198.238]:20229 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756297AbZE0KOa convert rfc822-to-8bit (ORCPT ); Wed, 27 May 2009 06:14:30 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=vjUU324m8/1TiroxE1zdIYXZVTzhP1mUxz569f6464INLd+p8hJ6B2wzXQu0sIkc1u e48ee6lOGDerLrkv9r4D6ycJN0joERSulN9hFig/3Me7kIQQLu6Ushp47BZnubLZyk9K OaZzx5/Bz721zEic7nFtVoAt1NH2/ycQ4E/zE= MIME-Version: 1.0 In-Reply-To: <4A1C5CF0.3090107@redhat.com> References: <1242170724-13349-1-git-send-email-jeremy@goop.org> <20090519123548.GA26439@elte.hu> <4A14447E.9060607@goop.org> <20090525041057.GD9396@elte.hu> <4A1C5CF0.3090107@redhat.com> Date: Wed, 27 May 2009 11:14:30 +0100 X-Google-Sender-Auth: 910b3e3970cd6207 Message-ID: Subject: Re: [Xen-devel] Re: [GIT PULL] Xen APIC hooks (with io_apic_ops) From: George Dunlap To: Gerd Hoffmann Cc: Jeremy Fitzhardinge , Xen-devel , "the arch/x86 maintainers" , Linux Kernel Mailing List , Avi Kivity , Ingo Molnar , Linus Torvalds , Keir Fraser Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 26, 2009 at 10:19 PM, Gerd Hoffmann wrote: > Well.  Xen *does* suffer from bad technical choices made years ago.  I'm > pretty sure Xen would look radically different when being rewritten from > scratch today. That may be. I don't know enough about the specific issues you raise below to comment. But Ingo wasn't bringing up those issues: he was disagreeing with the whole idea of including dom0 Linux as a key component of the Xen system. If the Xen project were to start over from scratch, we might make a lot of different decisions; but running Linux as the hypervisor (as KVM does) or forking Linux (as Ingo seemed to suggest) are not among them. -George