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

Jens Wiklander <[email protected]> Mon, 27 Apr 2026 15:42:33 +0200

Newsgroups	org.trustedfirmware.lists.op-tee,org.kernel.vger.linux-kernel
Message-ID	<CAHUa44Fe_L5CVKnsxi4HswH2D9bCA3u14ESb6LoKqcOSrfs3Cw@mail.gmail.com>

Hi,

On Mon, Apr 20, 2026 at 2:29 PM Sumit Garg <[email protected]> wrote:
>
> On Thu, Apr 16, 2026 at 03:18:19PM -0700, Hirokazu Honda wrote:
> > From: Hirokazu Honda <[email protected]>
> >
> > 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 <[email protected]>
> > ---
> >  drivers/tee/optee/call.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
>
> Reviewed-by: Sumit Garg <[email protected]>

Looks good. I'm picking up this.

Cheers,
Jens