From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: [Qemu-devel] KVM: Windows 64-bit troubles with user space irqchip Date: Wed, 2 Feb 2011 13:55:37 +0200 Message-ID: <20110202115537.GE14984@redhat.com> References: <4D484A9B.9040604@siemens.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm , qemu-devel To: Jan Kiszka Return-path: Received: from mx1.redhat.com ([209.132.183.28]:7711 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753192Ab1BBLzn (ORCPT ); Wed, 2 Feb 2011 06:55:43 -0500 Content-Disposition: inline In-Reply-To: <4D484A9B.9040604@siemens.com> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, Feb 01, 2011 at 07:02:03PM +0100, Jan Kiszka wrote: > Hi, > > testing my KVM patches, I noticed that none of the 64-bit Windows > versions I have around (early Win7 & 2003 server) boot in KVM mode when > using 2 or more VCPUs and the user space irqchip. This applies to both > upstream KVM and qemu-kvm, with our without any of my current patches. A > subtle difference in the APIC/IOAPIC emulation? > > Can anyone confirm this? > Just booted windows7-64 on qemu-kvm -no-kvm-irqchip + latest kernel here. -- Gleb.