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Date: Thu, 8 Oct 2009 18:22:48 +0200
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] Re: [PATCH v2 3/9] provide in-kernel ioapic
Message-ID: <20091008162248.GK16702@redhat.com>
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To: Avi Kivity <avi@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, Glauber Costa <glommer@redhat.com>, kvm-devel <kvm@vger.kernel.org>, qemu-devel@nongnu.org

On Thu, Oct 08, 2009 at 06:17:57PM +0200, Avi Kivity wrote:
> On 10/08/2009 06:07 PM, Jamie Lokier wrote:
> >Haven't we already confirmed that it *isn't* just an ioapic accelerator
> >because you can't migrate between in-kernel iopic and qemu's ioapic?
> 
> We haven't confirmed it.  Both implement the same spec, and if you
> can't migrate between them, one of them has a bug (for example, qemu
> ioapic doesn't implement polarity - but it's still just a bug).
> 
Are you saying that HW spec (that only describes software visible behavior)
completely defines implementation? No other internal state is needed
that may be done differently by different implementations?

--
			Gleb.