From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Xen & VMI? Date: Tue, 6 Mar 2007 09:19:09 +0100 Message-ID: <20070306081909.GA9331@elte.hu> References: <20070305120631.GA14105@elte.hu> <1173101297.26165.39.camel@localhost.localdomain> <1173142644.4644.6.camel@localhost.localdomain> <45ECBDDC.8080708@vmware.com> <45ECC076.9050209@goop.org> <45ECC91D.1020809@vmware.com> <45ECC9B6.1060209@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <45ECC9B6.1060209@goop.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.osdl.org Errors-To: virtualization-bounces@lists.osdl.org To: Jeremy Fitzhardinge Cc: virtualization , Jan Beulich , Andrew Morton , Linus Torvalds , Roland McGrath , linux-kernel@vger.kernel.org List-Id: virtualization@lists.linuxfoundation.org btw., while we have everyone on the phone and talking ;) Technologically = it would save us a whole lot of trouble in Linux if 'external' = hypervisors could standardize around a single ABI - such as VMI. Is = there any deep reason why Xen couldnt use VMI to talk to Linux? I = suspect a range of VMI vectors could be set aside for Xen's dom0 (and = other) APIs that have no current VMI equivalent - if there's broad = agreement on the current 60+ base VMI vectors that center around basic = x86 CPU capabilities - which make up the largest portion of our = paravirtualization complexity. Pipe dream? there are already 5 major hypervisors we are going to support (in = alphabetical order): - KVM - lguest - Windows - VMWare - Xen the QA matrix is gonna be a _mess_. Okay, lguest and KVM is special = because both the client and the server side is in the same source code, = so the ABI [if any] is alot easier to manage. That still leaves another = three... Ingo