Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759718Ab3GaNZk (ORCPT ); Wed, 31 Jul 2013 09:25:40 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44022 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759640Ab3GaNZg (ORCPT ); Wed, 31 Jul 2013 09:25:36 -0400 Message-ID: <51F91030.9060606@zytor.com> Date: Wed, 31 Jul 2013 06:25:04 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Konrad Rzeszutek Wilk CC: Mike Rapoport , Rusty Russell , Ramkumar Ramachandra , LKML Subject: Re: [QUERY] lguest64 References: <51E97779.3020103@zytor.com> <87zjte9iah.fsf@rustcorp.com.au> <51F9005F.30501@zytor.com> <20130731131757.GB22124@phenom.dumpdata.com> In-Reply-To: <20130731131757.GB22124@phenom.dumpdata.com> X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 857 Lines: 22 On 07/31/2013 06:17 AM, Konrad Rzeszutek Wilk wrote: >> >> The big problem with pvops is that they are a permanent tax on future >> development -- a classic case of "the hooks problem." As such it is >> important that there be a real, significant, use case with enough users >> to make the pain worthwhile. With Xen looking at sunsetting PV support >> with a long horizon, it might currently be possible to remove pvops some > > PV MMU parts specifically. > Pretty much stuff that is driverized on plain hardware doesn't matter. What are you looking at with respect to the basic CPU control state? -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/