Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756936Ab2JWIvx (ORCPT ); Tue, 23 Oct 2012 04:51:53 -0400 Received: from smtp.ctxuk.citrix.com ([62.200.22.115]:2749 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756715Ab2JWIvv (ORCPT ); Tue, 23 Oct 2012 04:51:51 -0400 X-IronPort-AV: E=Sophos;i="4.80,634,1344211200"; d="scan'208";a="15326913" Message-ID: <1350982301.2237.6.camel@zakaz.uk.xensource.com> Subject: Re: [Xen-devel] [PATCH V3 1/6]: PVH: basic and header changes, elfnote changes, ... From: Ian Campbell To: Konrad Rzeszutek Wilk CC: Stefano Stabellini , "Xen-devel@lists.xensource.com" , "linux-kernel@vger.kernel.org" Date: Tue, 23 Oct 2012 09:51:41 +0100 In-Reply-To: <20121019131707.GG26830@phenom.dumpdata.com> References: <20121017172642.349b2aae@mantra.us.oracle.com> <20121019131707.GG26830@phenom.dumpdata.com> Organization: Citrix Systems, Inc. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.4.3-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1196 Lines: 27 On Fri, 2012-10-19 at 14:17 +0100, Konrad Rzeszutek Wilk wrote: > > > +config XEN_X86_PVH > > > + bool "Support for running as a PVH guest (EXPERIMENTAL)" > > > + depends on X86_64 && XEN && EXPERIMENTAL > > > + default n > > > + help > > > + This option enables support for running as a PVH guest (PV guest > > > + using hardware extensions) under a suitably capable hypervisor. > > > + This option is EXPERIMENTAL because the hypervisor interfaces > > > + which it uses are not yet considered stable therefore backwards and > > > + forwards compatibility is not yet guaranteed. If unsure, say N. > > > > Do we really need the kconfig symbol? Why can't we have it always > > Yes for right now. That is to make sure that we can test for regressions > PV guests on a hypervisor without PVH extensions - or vice-versa: > PVH hypervisors with an normal PV guest. Also the "depends on X86_64" bit is currently quite important... Ian. -- 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/