Re: [Qemu-devel] Re: [PATCH 3/3] Add KVM support to QEMU

Avi Kivity
2008-10-29T09:54:19Z

Anthony Liguori wrote:
> Another place "hook" is updating a slot's dirty bitmap. Right now,
> with my patchset we don't have live migration or the VGA RAM
> optimization. There's nothing about the VGA RAM optimization that
> wouldn't work for QEMU. I'm not sure that it really is an
> optimization in the context of TCG, but I certainly don't think it's
> any worse. The only thing you really need is to query the KVM dirty
> bitmap when it comes time to enable start over querying the VGA dirty
> bits.

I don't understand this. The VGA optimization really is qemu's, the kvm
modifications only cater to the different way of getting the dirty bits.

> The same is needed for live migration, so I think what we really need
> is to change the memory dirty bit tracking API to have a concept of
> refresh that we can use to hook for KVM.
>

Can you elaborate on this refresh?

--
error compiling committee.c: too many arguments to function