Re: [PATCH v4 1/2] xen/arm: smccc: add support for SMCCCv1.2 extended input/output registers

[Julien Grall <julien@xxxxxxx>]

Hi Luca,

On 08/07/2022 13:01, Luca Fancellu wrote:
> > On 22 Jun 2022, at 14:42, Jens Wiklander <jens.wiklander@xxxxxxxxxx> wrote:
> >
> > SMCCC v1.2 AArch64 allows x0-x17 to be used as both parameter registers
> > and result registers for the SMC and HVC instructions.
> >
> > Arm Firmware Framework for Armv8-A specification makes use of x0-x7 as
> > parameter and result registers.
> >
> > Let us add new interface to support this extended set of input/output
> > registers.
> >
> > This is based on 3fdc0cb59d97 ("arm64: smccc: Add support for SMCCCv1.2
> > extended input/output registers") by Sudeep Holla from the Linux kernel
> >
> > The SMCCC version reported to the VM is bumped to 1.2 in order to support
> > handling FF-A messages.
> >
> > Signed-off-by: Jens Wiklander <jens.wiklander@xxxxxxxxxx>
> > ---
> I think you need to update the copyright information of the smccc.h header 
> (maintainers can confirm if it’s needed),
We don't usually update the copyright header (not sure if we should). 
Instead, I think we rely on ``git log`` to find who has contributed to 
the file.
Cheers,

--
Julien Grall