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Subject: Re: [PATCH v6 2/2] tee: add private login method for kernel clients
To:     Sumit Garg <sumit.garg@linaro.org>, jens.wiklander@linaro.org
Cc:     tee-dev@lists.linaro.org, linux-kernel@vger.kernel.org,
        stuart.yoder@arm.com, daniel.thompson@linaro.org
References: <1585286988-10671-1-git-send-email-sumit.garg@linaro.org>
 <1585286988-10671-3-git-send-email-sumit.garg@linaro.org>
From:   Jerome Forissier <jerome@forissier.org>
Message-ID: <de12c5b1-4875-93d1-6d94-374d34f7e0b2@forissier.org>
Date:   Mon, 20 Apr 2020 16:02:08 +0200
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On 3/27/20 6:29 AM, Sumit Garg wrote:
> There are use-cases where user-space shouldn't be allowed to communicate
> directly with a TEE device which is dedicated to provide a specific
> service for a kernel client. So add a private login method for kernel
> clients and disallow user-space to open-session using GP implementation
> defined login method range: (0x80000000 - 0xBFFFFFFF).
> 
> Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
> ---
>  drivers/tee/tee_core.c   | 7 +++++++
>  include/uapi/linux/tee.h | 9 +++++++++
>  2 files changed, 16 insertions(+)

Reviewed-by: Jerome Forissier <jerome@forissier.org>

Thanks,
-- 
Jerome