[PATCH v4 0/7] firmware: Add initial support for Arm FF-A

[Jens Wiklander]

On Thu, Mar 18, 2021 at 3:09 PM Jens Wiklander
<jens.wiklander at linaro.org> wrote:
>
> Hi Sudeep,
>
> On Tue, Mar 16, 2021 at 3:34 PM Sudeep Holla <sudeep.holla at arm.com> wrote:
> >
> > Hi Jens,
> >
> > On Fri, Feb 12, 2021 at 03:46:07PM +0000, Sudeep Holla wrote:
> > > Hi all,
> > >
> > > This is very basic implementation for in-kernel support for Arm FF-A
> > > specification.
> > >
> > > Arm Firmware Framework for Armv8-A specification[1] describes a software
> > > architecture that provides mechanism to utilise the virtualization
> > > extension to isolate software images and describes interfaces that
> > > standardize communication between the various software images. This
> > > includes communication between images in the Secure and Normal world.
> > >
> > > The main idea here is to create FFA device to establish any communication
> > > with a secure partition. This is currently tested with OPTEE(with changes
> > > to OPTEE driver adding FFA as transport)
> > >
> >
> > Since you reviewed the last version, it would be helpful if you provide
> > Reviewed-by or Tested-by if you happy with this version. I would like to
> > get this initial version merged for v5.13
>
> I've tested this in a few of my setups and everything looks over all
> fine, so please apply:
> Tested-by: Jens Wiklander <jens.wiklander at linaro.org>
>
> I'm also double checking the details of the patches for some further
> feedback. Stay tuned.

I'm done reviewing this patchset. I had a comment about a TODO in
"arm64: smccc: Add support for SMCCCv1.2 input/output registers", I
suppose it isn't very urgent with a 32-bit implementation.

Cheers,
Jens