Re: [Xen-devel] [PATCH v6] xen/arm: Allow balooning working with 1:1 memory mapping

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2014-01-06 at 11:48 +0000, Ian Campbell wrote:
> On Mon, 2014-01-06 at 11:44 +0000, Julien Grall wrote:
> > 
> > On 12/19/2013 01:51 PM, Ian Campbell wrote:
> > > On Tue, 2013-12-17 at 14:55 +0000, Stefano Stabellini wrote:
> > >> On Tue, 17 Dec 2013, Julien Grall wrote:
> > >>> With the lack of iommu, dom0 must have a 1:1 memory mapping for all
> > >>> these guest physical address. When the ballon decides to give back a
> > >>> page to the kernel, this page must have the same address as previously.
> > >>> Otherwise, we will loose the 1:1 mapping and will break DMA-capable
> > >>> devices.
> > >>>
> > >>> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
> > >>> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
> > >>> Cc: Keir Fraser <keir@xxxxxxx>
> > >>
> > >> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> > >
> > > Keir, any objections to this patch?
> > 
> > Hi Ian,
> > 
> > Do we need to wait Keir Ack?
> 
> I think he's had ample opportunity to object (last call!) and since this
> code is explicitly dead on everything apart from ARM I intend to commit
> it next time I go through my queue.

Which I've now done.



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