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Date: Wed, 02 Feb 2011 13:50:02 +0100
From: Jan Kiszka <jan.kiszka@siemens.com>
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Subject: Re: [Qemu-devel] KVM: Windows 64-bit troubles with user space irqchip
References: <4D484A9B.9040604@siemens.com> <20110202115537.GE14984@redhat.com>
	<4D4946F7.1070702@siemens.com> <20110202123532.GF14984@redhat.com>
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To: Gleb Natapov <gleb@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>, kvm <kvm@vger.kernel.org>

On 2011-02-02 13:35, Gleb Natapov wrote:
> On Wed, Feb 02, 2011 at 12:58:47PM +0100, Jan Kiszka wrote:
>> 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?
>>
> Opps, -smp 1. With -smp 2 it boot almost completely and then hangs.

Ah, good (or not good). With Windows 2003 Server, I actually get a Blue
Screen (Stop 0x000000b8).

Jan

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