From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966496Ab3DQOAx (ORCPT ); Wed, 17 Apr 2013 10:00:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41114 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966321Ab3DQOAv (ORCPT ); Wed, 17 Apr 2013 10:00:51 -0400 Date: Wed, 17 Apr 2013 16:01:02 +0300 From: "Michael S. Tsirkin" To: Jan Beulich Cc: KY Srinivasan , "olaf@aepfle.de" , "bp@alien8.de" , "apw@canonical.com" , "x86@kernel.org" , "tglx@linutronix.de" , "devel@linuxdriverproject.org" , "gregkh@linuxfoundation.org" , "jasowang@redhat.com" , "linux-kernel@vger.kernel.org" , "hpa@zytor.com" Subject: Re: [PATCH 2/3] X86: Add a check to catch Xen emulation of Hyper-V Message-ID: <20130417130102.GE6801@redhat.com> References: <1359940910-32114-1-git-send-email-kys@microsoft.com> <1359940959-32168-1-git-send-email-kys@microsoft.com> <1359940959-32168-2-git-send-email-kys@microsoft.com> <20130417070616.GA4487@redhat.com> <423ae84de75f4b3587eb2d1a365cbd95@SN2PR03MB061.namprd03.prod.outlook.com> <516EC54A02000078000CE2AE@nat28.tlf.novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <516EC54A02000078000CE2AE@nat28.tlf.novell.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 17, 2013 at 02:52:42PM +0100, Jan Beulich wrote: > >>> On 17.04.13 at 15:20, KY Srinivasan wrote: > > If I recall correctly, the issue here was that Xen was enabling Hyper-V > > emulation un-conditionally even for Linux guests. > > To make this a little more precise - Xen is doing so only when the > guest config tells it to. > > Jan So it's something explicitly requested for this guest? Then I don't understand why does not make sense to override it in guest.