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Date: Thu, 13 Aug 2009 09:15:22 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] Re: [PATCH] qemu/virtio: move features to an
	inline function
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: avi@redhat.com, rusty@rustcorp.com.au, qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org

On Wed, Aug 12, 2009 at 02:18:20PM -0500, Anthony Liguori wrote:
> Michael S. Tsirkin wrote:
>> On
>>   
>>> Why bother switching to userspace for migration?  Can't you just have 
>>>  get/set ioctls for the state?
>>>     
>>
>> I have these. But live migration requires dirty page logging.
>> I do not want to implement it in kernel.
>>   
>
> Is it really that difficult?  I think it would be better to just do that.

The idea is if it can be in userspace, let's keep it there.

> I wonder though if mmu notifiers can be used to make it transparent...

Maybe they can, but that decision belongs to KVM.
Avi, what do you think?

> Regards,
>
> Anthony Liguori
>
>>> Regards,
>>>
>>> Anthony Liguori
>>>
>>>