From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752259Ab0JJHbI (ORCPT ); Sun, 10 Oct 2010 03:31:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50716 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751572Ab0JJHbG (ORCPT ); Sun, 10 Oct 2010 03:31:06 -0400 Date: Sun, 10 Oct 2010 09:30:41 +0200 From: Gleb Natapov To: Avi Kivity Cc: kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de, hpa@zytor.com, riel@redhat.com, cl@linux-foundation.org, mtosatti@redhat.com Subject: Re: [PATCH v6 02/12] Halt vcpu if page it tries to access is swapped out. Message-ID: <20101010073041.GK2397@redhat.com> References: <1286207794-16120-1-git-send-email-gleb@redhat.com> <1286207794-16120-3-git-send-email-gleb@redhat.com> <4CAD97D0.70100@redhat.com> <20101007174716.GD2397@redhat.com> <4CB0B4BA.5010901@redhat.com> <4CB0B52E.90806@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4CB0B52E.90806@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Oct 09, 2010 at 08:32:14PM +0200, Avi Kivity wrote: > On 10/09/2010 08:30 PM, Avi Kivity wrote: > >>So that "info cpu" will interfere with apf? Migration should work > >>in regular way. apf state should not be migrated since it has no meaning > >>on the destination. I'll make sure synthetic halt state will not > >>interfere with migration. > > > > > >If you deliver an apf, the guest expects a completion. > > > > btw, the token generation scheme resets as well. Draining the queue > fixes that as well. > I don't see what's there to fix. Can you explain what problem you see in the way current code works? -- Gleb.