Re: [Xen-devel] [for-4.7] xen/arm64: correctly emulate the {w, x}zr registers

[Julien Grall <julien.grall@xxxxxxx>]

Hi Jan,

On 07/04/2016 18:18, Jan Beulich wrote:
> > > > On 07.04.16 at 12:53, <julien.grall@xxxxxxx> wrote:
> > ---
> >
> > Stefano, let me know the new helper corresponds to change you requested
> > (see [1])
> >
> > This patch is a bug fix for Xen 4.7. Without it, a MMIO register and
> > sysreg will be set to a random value (actually PC) when the zero
> > register is used.
> >
> > I'm not sure if we should consider this patch to be backported to Xen
> > 4.6 and Xen 4.5. It depends on other patches and it would require some
> > rework to backport it alone.
> >
> > [1]
> > http://lists.xenproject.org/archives/html/xen-devel/2016-02/msg03100.html
> So the tags and alike would suggest this is ready to be committed,
> but the lack of a version number or version history don't really
> help support this. Could you please clarify the state of this patch?
Sorry I forgot to mention the changes I made. This is a resend with the 
modification suggested by Stefano.
I've kept Stefano's reviewed-by as he was fine with and without the 
helpers. Although, I would like to give Stefano a chance to object. Can 
you wait a bit before committing?
Regards,

--
Julien Grall

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