linux-kernel - Re: [Xen-devel] [PATCH V5] PVH patches for v3.8.

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Date:	Wed, 24 Oct 2012 10:44:33 +0100
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Ian Campbell" <Ian.Campbell@...rix.com>
Cc:	"Stefano Stabellini" <Stefano.Stabellini@...citrix.com>,
	"xen-devel" <xen-devel@...ts.xen.org>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	"mukesh.rathor@...cle.com" <mukesh.rathor@...cle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH V5] PVH patches for v3.8.

>>> On 24.10.12 at 11:34, Ian Campbell <Ian.Campbell@...rix.com> wrote:
> On Wed, 2012-10-24 at 08:13 +0100, Jan Beulich wrote:
> 
>> >  include/xen/interface/memory.h       |   29 ++++++-
>> >  include/xen/interface/physdev.h      |   10 ++
>> 
>> ... any changes to the hypervisor interface (didn't look in detail
>> what is being changed in these two headers) should first be in
>> at least -unstable before being consumed in any official release
>> imo.
> 
> I'd also like to see at least the interface definitions in the h/v tree
> if not the implementation right away.
> 
> The flip side is that we have agreed that the interfaces are not
> considered set in stone / stable until we've had a chance to review the
> implementation, so perhaps it is better not to commit them to
> xen-unstable.hg right away.
> 
> I don't know what the right answer is. Perhaps we should at a minimum
> reserve the subop numbers even if we don't yet define what they mean in
> the Xen tree.

But even then - what use is it to have 3.8 possibly only work on
some intermediate (perhaps even just privately built) hypervisors?

Jan

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