Re: [PATCH v4 3/4] xen: Remove mfn_to_gmfn macro

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 21 Sep 2020, Andrew Cooper wrote:
> On 21/09/2020 19:02, Julien Grall wrote:
> > From: Julien Grall <julien.grall@xxxxxxx>
> >
> > On x86, mfn_to_gmfn can be replaced with mfn_to_gfn. On Arm, there are
> > no more call to mfn_to_gmfn, so the helper can be dropped.
> 
> The previous patch dropped the mfn_to_gmfn() call from the domain shared
> info path, but without a hunk adjusting the innards of
> memory_exchange(), this is going to break the x86 build.
> 
> > At the same time rework a comment in Arm code that does not make sense.
> >
> > Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
> 
> To save a round trip, Acked-by: Andrew Cooper
> <andrew.cooper3@xxxxxxxxxx> with the appropriate hunk to memory_exchange().

Same from me:
Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>