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Date: Wed, 29 Oct 2008 08:51:18 -0500
From: "Hollis Blanchard" <hollis@alumni.cmu.edu>
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Subject: Re: [Qemu-devel] Re: [PATCH 3/3] Add KVM support to QEMU
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To: qemu-devel@nongnu.org
Cc: Glauber Costa <glommer@gmail.com>, Glauber Costa <glommer@redhat.com>, Avi Kivity <avi@redhat.com>, kvm-devel <kvm@vger.kernel.org>, Gerd Hoffmann <kraxel@redhat.com>

On Tue, Oct 28, 2008 at 6:36 PM, Anthony Liguori <anthony@codemonkey.ws> wrote:
>
> Something I was thinking about this morning, and I think the first place
> where we'll definitely need a hook, is how to deal with
> kvm_load_registers().  I think there's overlap between KVM and the IO thread
> here.
>
> There are two reasons (I can think of) that most of the device model code
> can't run in conjunction with TCG.  The first is that TCG may modify
> CPUState in a non-atomic way.  The device model may need to access CPUState
> although there are very few places that it does.

Out of curiosity, where are those places?

-Hollis