From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Mike D. Day" Subject: Re: Re: [Xen-changelog] Indirect hypercalls through ahypercall transfer page. Date: Wed, 08 Feb 2006 12:04:11 -0500 Message-ID: <43EA248B.1040001@us.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ian Pratt Cc: xen-devel@lists.xensource.com, Hollis Blanchard List-Id: xen-devel@lists.xenproject.org Ian Pratt wrote: > > Mike, there was some discussion about this and the other new 'feature > flags' at the OS Ports session at the summit (and in particular in the > 'linux merge' breakout group). Thanks, I guess I missed that session. > The hypercall transfer page is just one of several new feature flags > that should enable us to have a single xen-ified kernel that is capable > of running on bare metal, on pae and non-pae hypervisors, 64b A 32-bit kernel running on a 64-bit xen, for example? So in this case xen fills the page with 32-bit hcalls? Mike