From: Jan Kiszka Subject: Re: [Qemu-devel] KVM: Windows 64-bit troubles with user space irqchip Date: Wed, 02 Feb 2011 12:58:47 +0100 Message-ID: <4D4946F7.1070702@siemens.com> References: <4D484A9B.9040604@siemens.com> <20110202115537.GE14984@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: kvm , qemu-devel To: Gleb Natapov Return-path: Received: from goliath.siemens.de ([192.35.17.28]:23912 "EHLO goliath.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753016Ab1BBL7G (ORCPT ); Wed, 2 Feb 2011 06:59:06 -0500 In-Reply-To: <20110202115537.GE14984@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 2011-02-02 12:55, Gleb Natapov wrote: > 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. Strange. -smp 2? Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux