RE: [Xen-devel] DomU as Dom0?

["Dong, Eddie" <eddie.dong@xxxxxxxxx>]

Daniel Stodden wrote:
> On Fri, 2010-02-12 at 02:46 -0500, Thomas Goirand wrote:
>> Sassy Natan wrote:
>>> OK,
>>> 
>>> Thanks for the answers
>>> 
>>> Sassy
>>> 
>>> On Thu, Feb 11, 2010 at 11:41 PM, Daniel Stodden
>>> <daniel.stodden@xxxxxxxxxx <mailto:daniel.stodden@xxxxxxxxxx>>
>>>     wrote: If you're rather looking for recursive virtualization, I
>>>     don't think that's going to fly all that well either.
>>> 
>>>     Daniel
>> 
>> 
>> It's called "nested virtualization" (not recursive) and there was a

It is just a name difference. It is actually recursivable as if the CPU is 
power enough.

>> talk about it on the last Xen Summit in Shanghai. I suggest you to
>> read the video: 
>> 
>> http://www.xen.org/files/xensummit_intel09/xensummit-nested-virt.pdf
>> http://www.xen.org/media/Movies/XenSummitAsia09/2009-11-19-afternoon/NestedVirtualization.MTS
> 
> Ah, nice. I didn't expect VMX emulation be actually in the works
> somewhere. Cool, thanks for the link.
> 
> "Recursive" was the original term for such a beast.
> 
> Any estimates on the footprint? Small enough to be a candidate for
> inclusion? It'd certainly be interesting for some applications.

It should be very small. Probably 2-3K LOC, we are still working on some 
tunning and polishing work. 

Thx, Eddie
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