From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [RFC] CPUID usage for interaction between Hypervisors and Linux. Date: Wed, 01 Oct 2008 11:07:03 -0700 Message-ID: <48E3BC47.60900@zytor.com> References: <1222881242.9381.17.camel@alok-dev1> <48E3BBC1.2050607@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: akataria@vmware.com, "avi@redhat.com" , Rusty Russell , Gerd Hoffmann , Ingo Molnar , the arch/x86 maintainers , LKML , "Nakajima, Jun" , Dan Hecht , Zachary Amsden , virtualization@lists.linux-foundation.org, kvm@vger.kernel.org To: Jeremy Fitzhardinge Return-path: Received: from terminus.zytor.com ([198.137.202.10]:36173 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753097AbYJASLS (ORCPT ); Wed, 1 Oct 2008 14:11:18 -0400 In-Reply-To: <48E3BBC1.2050607@goop.org> Sender: kvm-owner@vger.kernel.org List-ID: Jeremy Fitzhardinge wrote: > > No, we're not getting anywhere. This is an outright broken idea. The > space is too small to be able to chop up in this way, and the number of > vendors too large to be able to do it without having a central oversight. > I suspect we can get a larger number space if we ask Intel & AMD. In fact, I think we should request that the entire 0x40xxxxxx numberspace is assigned to virtualization *anyway*. -hpa