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Re: [Xen-devel] Please review the key 4.4 release docs

On 03/11/2014 01:23 AM, Zhang, Yang Z wrote:
George Dunlap wrote on 2014-03-10:
On 03/10/2014 04:27 AM, Zhang, Yang Z wrote:
Russell Pavlicek wrote on 2014-03-10:
I have done my best to compile the various key release documents
for the 4.4 release.

All have hyperlinks from the download page:
es/ xen-440.html
I thought that we have agreed that we will move the nested
from experimental to 1.0 or something else in Xen 4.4 release note.
But it seems it still in experimental state and there is no mention of
it in the release note.

Well we discussed it, but there were too many things still missing to
call it a properly supported feature: in particular, doubts about how
well shadow-on-hap would work, which would be a potential security
Actually, I'd like to know all potential nested issues and I will try to solve 
it if possible. But the problem is that I am not clear about those issues that 
you guys mentioned. Is there any thread talk about them?

I think I was thinking along the lines of what I wrote in this thread:

Msg-ID <52E28EFB.3020008@xxxxxxxxxxxxx>

It seems there the minimum thing for a "1.0" release is that an L1 admin must not be able to do anything to affect an L0; and thinks at the moment likely to do so are enabling PoD (and probably also paging) for L2 guests. It's OK if enabling PoD crashes the *L1* hypervisor (because that's under the L1 admin's control); but it must not be allowed to crash / DoS the L0 hypervisor.


issue.  (On my to-do list is to collect these somewhere so we have a
clear set of criteria for moving nested HVM from "tech preview" to
Yes, it makes sense.

It would be good to put something in the release note, however, to say
how much it has progressed.  I'll see what I can do.
Yes, nested was moving forward in last year. It's better to tell this to people 
since lots of people unaware of this feature.


Best regards,

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