From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yang, Sheng" Subject: Re: x2APIC emulation for HVM guest Date: Thu, 2 Dec 2010 14:23:16 +0800 Message-ID: <201012021423.16866.sheng.yang@intel.com> References: <201012021009.36497.sheng.yang@intel.com> <201012021343.49014.sheng.yang@intel.com> <4CF7331F.7080207@redhat.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4CF7331F.7080207@redhat.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: Paolo Bonzini Cc: "xen-devel@lists.xensource.com" , Keir Fraser List-Id: xen-devel@lists.xenproject.org On Thursday 02 December 2010 13:48:15 Paolo Bonzini wrote: > On 12/02/2010 06:43 AM, Yang, Sheng wrote: > > I think we can do it step by step. This patch is big enough. > > Yes, I agree it can go in as a separate patch. > > > I'd like to work the direct EOI patch out, but I am thinking about how to > > test it... > > Maybe you can run Xen inside an HVM guest, forcing x2apic mode to be > enabled? You do not need nested VMX if you only run PV guests in the > guest hypervisor. I don't know how much work need to be done for this, and if it's worth to do for something was not be used in practice(if it would be used in practice, then it would be easy for us to test)... Anyway I would prepare the code later. -- regards Yang, Sheng > > Paolo