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



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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