Re: [Xen-devel] [PATCH] Don't clear HCR_VM bit when updating VTTBR.

[Julien Grall <julien.grall@xxxxxxx>]

Hi Stefano,

On 31/10/2016 22:18, Stefano Stabellini wrote:
> On Mon, 31 Oct 2016, Steve Capper wrote:
> > On Wed, Oct 19, 2016 at 12:59:45PM -0700, Stefano Stabellini wrote:
> > > On Mon, 10 Oct 2016, Jun Sun wrote:
> > > > Currently function p2m_restore_state() would clear HCR_VM bit, i.e.,
> > > > disabling stage2 translation, before updating VTTBR register. After
> > > > some research and talking to ARM support, I got confirmed that this is not
> > > > necessary. We are currently working on a new platform that would need this
> > > > to be removed.
> > > >
> > > > The patch is tested on FVP foundation model.
> > > >
> > > > Signed-off-by: Jun Sun <jsun@xxxxxxxxxx>
> > > Hello Jun,
> > >
> > > thanks for the patch and sorry for the late reply. I would appreciate
> > > feedback from Julien, but he is current AFK.
> > >
> > > Steve,
> > > can I have your Acked-by on this patch?
> > Apologies for my very late reply on this.
> >
> > I've taken a look and I think that this is okay, so please feel free to
> > add:
> > Acked-by: Steve Capper <steve.capper@xxxxxxxxxx>
> Thanks Steve. Given the state of the release, I am going to push the fix
> to Xen 4.9 unless you or Jun have a strong argument for committing this
> sooner.
Not related to this patch. Do you plan to have a branch for queuing all 
Xen 4.9 patches?
Cheers,

--
Julien Grall

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