Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757080AbXJXT5F (ORCPT ); Wed, 24 Oct 2007 15:57:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753651AbXJXT4y (ORCPT ); Wed, 24 Oct 2007 15:56:54 -0400 Received: from gw.goop.org ([64.81.55.164]:42675 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752685AbXJXT4x (ORCPT ); Wed, 24 Oct 2007 15:56:53 -0400 Message-ID: <471FA379.6070400@goop.org> Date: Wed, 24 Oct 2007 12:56:41 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Matt Mackall CC: Jan Beulich , Jeremy Fitzhardinge , Linux Kernel Mailing List Subject: Re: CONFIG_XEN dependencies References: <471DE2F8.76E4.0078.0@novell.com> <471E38D6.5050202@xensource.com> <471F1EEE.76E4.0078.0@novell.com> <471F965B.6090200@goop.org> <20071024195348.GM17536@waste.org> In-Reply-To: <20071024195348.GM17536@waste.org> X-Enigmail-Version: 0.95.3 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 551 Lines: 16 Matt Mackall wrote: > You might want a runtime check for these features as a future Xen > hypervisor might eliminate these requirements. > > Ok, not really likely, but still possible. > Seems pretty unlikely. All existing guests assume cmpxchg is available, and the hypercall ABI depends on the tsc. J - 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/