Re: [Xen-devel] [RFC PATCH 16/31] arm: add SMC wrapper that is compatible with SMCCC

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 05/12/17 17:08, Volodymyr Babchuk wrote:
> Hi Julien,
>
> On 05.12.17 16:58, Julien Grall wrote:
> > Hi Oleksandr,
> >
> > On 09/11/17 17:10, Oleksandr Tyshchenko wrote:
> > > From: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
> > >
> > > Existing SMC wrapper call_smc() allows only 4 parameters and
> > > returns only one value. This is enough for existing
> > > use in PSCI code, but TEE mediator will need a call that is
> > > fully compatible with ARM SMCCC.
> > > This patch adds this call for both arm32 and arm64.
> > >
> > > There was similar patch by Edgar E. Iglesias ([1]), but looks
> > > like it is abandoned.
> > >
> > > [1] 
> > > https://lists.xenproject.org/archives/html/xen-devel/2017-02/msg00636.html 
> > >
> > > CC: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>
> > >
> > > Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
> > > CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> > > CC: Julien Grall <julien.grall@xxxxxxxxxx>
> > This patch was sent by Volodymyr a month ago (see [2]) and I had 
> > comments on it. I would appreciate if you address them.
> I can address your comments and send it as a separate patch to the ML.
> Will it be fine?
Sure.

> WBR
--
Julien Grall

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