From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
To: Etienne Carriere <etienne.carriere@linaro.org>
Cc: u-boot@lists.denx.de
Subject: Re: [PATCH] tpm2: ftpm: open session with privileged ree login
Date: Tue, 13 Dec 2022 00:26:55 +0200 [thread overview]
Message-ID: <Y5eqrwClMn1awHf9@hera> (raw)
In-Reply-To: <20221207152533.532974-1-etienne.carriere@linaro.org>
On Wed, Dec 07, 2022 at 04:25:33PM +0100, Etienne Carriere wrote:
> Opens the fTPM session with TEE_LOGIN_REE_KERNEL as fTPM may restrict
> access to that login when Linux based OS is running as applications are
> expected to got through the Linux TPMv2 driver.
>
> Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
> ---
> drivers/tpm/tpm2_ftpm_tee.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/tpm/tpm2_ftpm_tee.c b/drivers/tpm/tpm2_ftpm_tee.c
> index 53e59f42b4..3c4c12983d 100644
> --- a/drivers/tpm/tpm2_ftpm_tee.c
> +++ b/drivers/tpm/tpm2_ftpm_tee.c
> @@ -186,6 +186,7 @@ static int ftpm_tee_probe(struct udevice *dev)
>
> /* Open a session with the fTPM TA */
> memset(&sess_arg, 0, sizeof(sess_arg));
> + sess_arg.clnt_login = TEE_LOGIN_REE_KERNEL;
> tee_optee_ta_uuid_to_octets(sess_arg.uuid, &uuid);
>
> rc = tee_open_session(context->tee_dev, &sess_arg, 0, NULL);
> --
> 2.25.1
>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
prev parent reply other threads:[~2022-12-12 22:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 15:25 [PATCH] tpm2: ftpm: open session with privileged ree login Etienne Carriere
2022-12-12 22:26 ` Ilias Apalodimas [this message]
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