From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kip Macy Subject: Re: address space reorganization Date: Thu, 14 Apr 2005 11:15:51 -0700 Message-ID: References: <425DDE90.4070702@diku.dk> Reply-To: Kip Macy Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Rik van Riel Cc: xen-devel@lists.xensource.com, Jacob Gorm Hansen List-Id: xen-devel@lists.xenproject.org > People whose applications need SSE2 will install CPUs that > have those instructions. >=20 One would hope, but just because a customer has lots of money to spend on hardware doesn't mean that he is rowing with both oars. This is a supportability issue. The xen{source} folks would do themselves a favor by trapping a guest's use of unsupported instructions and logging it. That would make it easy enough to track down if a customer's apps stop working when using migration. -Kip