From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35620) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XyKhm-0002fv-0m for qemu-devel@nongnu.org; Tue, 09 Dec 2014 08:19:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XyKhh-00064d-3Z for qemu-devel@nongnu.org; Tue, 09 Dec 2014 08:19:53 -0500 Received: from mx1.redhat.com ([209.132.183.28]:38543) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XyKhg-00064M-SY for qemu-devel@nongnu.org; Tue, 09 Dec 2014 08:19:49 -0500 Date: Tue, 9 Dec 2014 12:33:22 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20141209123321.GD5272@work-vm> References: <20141209105031.GA13012@tesla.redhat.com> <20141209112543.GZ15695@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Cubietruck: cannot create KVM guests: "kvm_init_vcpu failed: Invalid argument" List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Kashyap Chamarthy , "Richard W.M. Jones" , QEMU Developers * Peter Maydell (peter.maydell@linaro.org) wrote: > On 9 December 2014 at 11:25, Richard W.M. Jones wrote: > > I really think that qemu should just "do the right thing" though. > > Tricky, because you have to use the same CPU as the host if > you want to use KVM That's an unusally strict requirement; is there no concept of a common subset that will work on multiple CPUs? Is that still true for v8? I can see it making it tricky for users with piles of newer/older hosts. Dave > and that conflicts with wanting to do the > same thing on all host platforms for a given set of command line > options. If you have some concrete suggestions for improving > things that don't break backwards-compatibility I'm happy to > hear them, though. > > -- PMM > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK