From mboxrd@z Thu Jan 1 00:00:00 1970 From: Javier Guerra Subject: Re: [Xen-users] RE: DomU as Dom0? Date: Tue, 16 Feb 2010 10:50:58 -0500 Message-ID: <90eb1dc71002160750vc00ccd7iaab64828c28d01c@mail.gmail.com> References: <529a12f41002111143t6f41924ey46e4ef940d7c9969@mail.gmail.com> <1265924495.9385.84.camel@agari.van.xensource.com> <529a12f41002112223j4bd55064y427cdb9dc84315f6@mail.gmail.com> <4B75075A.4090909@goirand.fr> <1266229006.9492.38.camel@ramone.somacoma.net> <60E426D47DE8EA47AA104E65008A100D206EA40573@shzsmsx501.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <60E426D47DE8EA47AA104E65008A100D206EA40573@shzsmsx501.ccr.corp.intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Dong, Eddie" Cc: Xen List , "xen-devel@lists.xensource.com" , Thomas Goirand , Daniel Stodden List-Id: xen-devel@lists.xenproject.org On Mon, Feb 15, 2010 at 11:32 AM, Dong, Eddie wrote: >>> It's called "nested virtualization" (not recursive) and there was a > > It is just a name difference. It is actually recursivable as if the CPU is power enough. not if (as in this case) you use different requirements for each virtualization level. the 'real' level needs HVM support to set an HVM DomU, where you can run Xen, but this level doesn't have HVM, so you can only put PV DomU's there. The KVM on KVM experiments are closer to being fully recursive. -- Javier