Re: [PATCH v4 00/13] xen/arm: Split MMU code as the prepration of MPU work

[Julien Grall <julien@xxxxxxx>]

On 02/08/2023 04:59, Henry Wang wrote:
> Hi Julien,
Hi Henry,

-----Original Message-----
> > From: Julien Grall <julien@xxxxxxx>
> > Subject: Re: [PATCH v4 00/13] xen/arm: Split MMU code as the prepration of
> > MPU work
> >
> > Hi,
> >
> > On 01/08/2023 04:44, Henry Wang wrote:
> > > Based on the discussion in the Xen Summit [1], sending this series out after
> > > addressing the comments in v3 [2] as the preparation work to add MPU
> > support.
> > > Mostly code movement, with some of Kconfig and build system (mainly
> > Makefiles)
> > > adjustment. No functional change expected.
> > I can't really review this series without knowing how this will
> > integrate with the rest of the MPU work.
> Sorry about it, I should have asked before sending the series.
>
> > Can you at least provide a tree
> > with all the patches applied (including the MPU one)?
> See [1] for the full single core MPU implementation which I've verified
> locally about the MMU and MPU single core Linux boot on FVP, and
> looks like Gitlab is also not complaining [2].
Thanks for the link!

> Note that I've addressed comments from you and Ayan in v3 about the
> MMU/MPU helpers duplication and the arm32/arm64 split work. I didn't
> address the comment in [3] about the RES0 stuff, but I think this is not
> related to the MMU split series I sent yesterday to mailing list and the
> formal v4 MPU work sent to the mailing list will contain the fix for this
> comment.
Agree, the RES0 bit is MPU specific.

Cheers,

--
Julien Grall