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

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Message-ID: <1351071279.2237.126.camel@zakaz.uk.xensource.com>
Date:	Wed, 24 Oct 2012 10:34:39 +0100
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	Jan Beulich <JBeulich@...e.com>
CC:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	"mukesh.rathor@...cle.com" <mukesh.rathor@...cle.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	xen-devel <xen-devel@...ts.xen.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH V5] PVH patches for v3.8.

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.

Ian.

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