From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [Android-virt] [PATCH v5 11/13] ARM: KVM: Support SMP hosts Date: Mon, 19 Dec 2011 15:37:04 +0000 Message-ID: <4EEF5A20.7060603@arm.com> References: <20111211102403.21693.6887.stgit@localhost> <20111211102529.21693.62306.stgit@localhost> <4EEED68D.5040307@virtualopensystems.com> <4EEF55EF.9050309@arm.com> <4EEF58A8.30004@virtualopensystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: 8BIT Cc: Christoffer Dall , "android-virt@lists.cs.columbia.edu" , "tech@virtualopensystems.com" , "avi@redhat.com" , "kvm@vger.kernel.org" To: Antonios Motakis Return-path: Received: from service87.mimecast.com ([91.220.42.44]:46974 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752979Ab1LSPhG convert rfc822-to-8bit (ORCPT ); Mon, 19 Dec 2011 10:37:06 -0500 In-Reply-To: <4EEF58A8.30004@virtualopensystems.com> Sender: kvm-owner@vger.kernel.org List-ID: On 19/12/11 15:30, Antonios Motakis wrote: > On 12/19/2011 04:19 PM, Marc Zyngier wrote: >> On 19/12/11 14:57, Christoffer Dall wrote: >>> >>> >>> You should simply start booting a UP guest on an SMP host, see where >>> it crashes and start tracking it down. >> For the time being, I've yet to see UP guest crashing on SMP host. On >> the model, that is... >> >> > > Last time I tried to run a guest in a 2 core model, it hanged and > crashed after a while. Anyway, I will investigate. So I gather critical > sections have been dealt with and it's just a matter of ironing bugs > right now? Depends when you tested. V4 was definitely unusable on SMP. With my patches merged in Christoffer's v5 release, the basics should be covered (correct SMP setup in the boot-wrapper and KVM, MPIDR virtualization). If you find any problem (and let's face it, I'm sure you will... ;-), I'll be happy to investigate. Cheers, M. -- Jazz is not dead. It just smells funny...