Re: Status of Nested Virt in 4.4 (Was: Re: Xen 4.4 development update)

[George Dunlap <george.dunlap@eu.citrix.com>]

On 01/17/2014 09:40 AM, Ian Campbell wrote:
> On Fri, 2014-01-17 at 02:16 +0000, Zhang, Yang Z wrote:
>> As Andrew said, nested still in experimental stage, because there are
>> still lots of scenarios I am not covered in my testing. So it may not
>> accurate to say it is good supported. But I hope people know that the
>> nested is ready to use now. And encourage them to try it and report
>> bug to us to push nested move forward.
> Perhaps we could say it is "tech preview" rather than "experimental"?

If { {xp,win7,win8,rhel6}x{x86,x64} } x { Xen, KVM, VMWare } and Win7 XP 
compatibility mode are tested regularly, and only HyperV, L2 shadow, and 
paging / PoD don't work, I think we should be able to call this a "1.0" 
release for nested virt.  Then we can add in "now works with HyperV", 
"Now works with shadow", "Now works with paging" as those become mature.

I think if we have a wiki page describing what is expected to work, and 
some of the key things that don't work, then we should be able to add 
"Basic nested virt support for VMX no longer experimental (see the the 
wiki for details)" to the "4.4 feature" list.

  -George