linux-kernel - Re: [PATCH v5 0/3] Replay Protected Memory Block (RPMB) subsystem

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Message-ID: <CAHUa44EzMpRbhJ=-h4hJifgtrMsvDZj=Zt4C3JkDxjKE4gz=7A@mail.gmail.com>
Date: Tue, 23 Apr 2024 09:29:00 +0200
From: Jens Wiklander <jens.wiklander@...aro.org>
To: Avri Altman <Avri.Altman@....com>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>, 
	"op-tee@...ts.trustedfirmware.org" <op-tee@...ts.trustedfirmware.org>, 
	Shyam Saini <shyamsaini@...ux.microsoft.com>, Ulf Hansson <ulf.hansson@...aro.org>, 
	Linus Walleij <linus.walleij@...aro.org>, Jerome Forissier <jerome.forissier@...aro.org>, 
	Sumit Garg <sumit.garg@...aro.org>, Ilias Apalodimas <ilias.apalodimas@...aro.org>, 
	Bart Van Assche <bvanassche@....org>, Randy Dunlap <rdunlap@...radead.org>, 
	Ard Biesheuvel <ardb@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v5 0/3] Replay Protected Memory Block (RPMB) subsystem

On Tue, Apr 23, 2024 at 8:42 AM Avri Altman <Avri.Altman@....com> wrote:
>
> > The OP-TEE driver finds the correct RPMB device to interact with by
> > iterating over available devices until one is found with a programmed
> > authentication matching the one OP-TEE is using. This enables coexisting
> > users of other RPMBs since the owner can be determined by who knows the
> > authentication key.
> Devices in plural?
> I am unaware of any board with multi eMMC devices soldered.
> Can you refer me to such a platform?

I'm testing with a Hikey960 (HiSilicon Kirin 620)
https://www.96boards.org/product/hikey
It has one soldered eMMC and one removable eMMC.

Cheers,
Jens