Re: [PATCH] tee: optee: Allow MT_NORMAL_TAGGED shared memory

[Hirokazu Honda]

Thanks Sumit and Jens for reviewing!

On Mon, Apr 27, 2026 at 6:42 AM Jens Wiklander
<jens.wiklander@xxxxxxxxxx> wrote:
>
> Hi,
>
> On Mon, Apr 20, 2026 at 2:29 PM Sumit Garg <sumit.garg@xxxxxxxxxx> wrote:
> >
> > On Thu, Apr 16, 2026 at 03:18:19PM -0700, Hirokazu Honda wrote:
> > > From: Hirokazu Honda <hiroh@xxxxxxxxxxxx>
> > >
> > > On ARM64, shared memory can have MT_NORMAL_TAGGED attribute when using
> > > the Memory Tagging Extension (MTE). The OP-TEE driver needs to
> > > recognize this as normal memory to allow sharing such buffers with the
> > > Secure World.
> > >
> > > Signed-off-by: Hirokazu Honda <hiroh@xxxxxxxxxxxx>
> > > ---
> > >  drivers/tee/optee/call.c | 3 ++-
> > >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > Reviewed-by: Sumit Garg <sumit.garg@xxxxxxxxxxxxxxxx>
>
> Looks good. I'm picking up this.
>
> Cheers,
> Jens