linux-kernel - Re: [PATCH v7 2/4] virtio_balloon: introduce migration primitives to balloon pages

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Message-ID: <20120814200830.GD22133@t510.redhat.com>
Date:	Tue, 14 Aug 2012 17:08:31 -0300
From:	Rafael Aquini <aquini@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Rik van Riel <riel@...hat.com>, Mel Gorman <mel@....ul.ie>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Minchan Kim <minchan@...nel.org>
Subject: Re: [PATCH v7 2/4] virtio_balloon: introduce migration primitives to
 balloon pages

On Tue, Aug 14, 2012 at 10:59:16PM +0300, Michael S. Tsirkin wrote:
> > > > What if there is more than one balloon device?
> > > 
> > > Is it possible to load this driver twice, or are you foreseeing a future case
> > > where this driver will be able to manage several distinct memory balloons for
> > > the same guest?
> > > 
> > 
> > Second.
> > It is easy to create several balloons they are just
> > pci devices.
>  
> 
> 
> and it might not be too important to make it work but
> at least would be nice not to have a crash in this
> setup.
>
Fair enough. For now, as I believe it's safe to assume we are only inflating one
balloon per guest, I'd like to propose this as a future enhancement. Sounds
good?
 
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