Re: [RFC PATCH 1/1] Move two pinned pages to non-movable node in kvm.

Gleb Natapov
2014-06-18T06:12:30Z

On Wed, Jun 18, 2014 at 01:50:00PM +0800, Tang Chen wrote:
> [Questions]
> And by the way, would you guys please answer the following questions for me ?
>
> 1. What's the ept identity pagetable for ? Only one page is enough ?
>
> 2. Is the ept identity pagetable only used in realmode ?
> Can we free it once the guest is up (vcpu in protect mode)?
>
> 3. Now, ept identity pagetable is allocated in qemu userspace.
> Can we allocate it in kernel space ?
What would be the benefit?

>
> 4. If I want to migrate these two pages, what do you think is the best way ?
>
I answered most of those here: http://www.mail-archive.com/kvm@vger.kernel.org/msg103718.html

--
Gleb.