Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935291Ab2JaJ3g (ORCPT ); Wed, 31 Oct 2012 05:29:36 -0400 Received: from mo-p00-ob.rzone.de ([81.169.146.162]:22935 "EHLO mo-p00-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932293Ab2JaJ3b (ORCPT ); Wed, 31 Oct 2012 05:29:31 -0400 X-RZG-AUTH: :P2EQZWCpfu+qG7CngxMFH1J+zrwiavkK6tmQaLfmwtM48/ll2s7qFK2M X-RZG-CLASS-ID: mo00 Date: Wed, 31 Oct 2012 10:29:25 +0100 From: Olaf Hering To: Ian Campbell Cc: Pasi =?utf-8?B?S8Okcmtrw6RpbmVu?= , Jeremy Fitzhardinge , "xen-devel@lists.xensource.com" , "linux-kernel@vger.kernel.org" , Konrad Rzeszutek Wilk Subject: Re: [Xen-devel] [PATCH] xen PVonHVM: require at least Xen 3.4 as dom0 Message-ID: <20121031092925.GA22587@aepfle.de> References: <1351613105-24408-1-git-send-email-olaf@aepfle.de> <20121030181732.GZ8912@reaktio.net> <20121030182859.GA8775@aepfle.de> <1351672212.20470.7.camel@hastur.hellion.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1351672212.20470.7.camel@hastur.hellion.org.uk> User-Agent: Mutt/1.5.21.rev5555 (2012-07-20) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1112 Lines: 25 On Wed, Oct 31, Ian Campbell wrote: > If I understand correctly this requirements comes from the need to > support moving the shared info page in order to support kexec? > > So could we do something more fine grained and limit only the kexec > support (and therefore the movement of the SI into that range) to 3.4+? Its not strictly about kexec. The other patch I sent out will place the shared info page at 0xFE700000. If that range is not within a E820_Reserved area and if the old hvmloader makes allocations within that range, that other patch needs to be changed so that the shared info page is done either at 0xFE700000 or within RESERVE_BRK (as it is done currently). Is the source code of that old RHEL available somewhere, did they patch hvmloader at all? Providing a E820 map from a guest which was started on such old dom0 would be a good start. Olaf -- 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/