* [PATCH] tpm2: ftpm: open session with privileged ree login
@ 2022-12-07 15:25 Etienne Carriere
2022-12-12 22:26 ` Ilias Apalodimas
0 siblings, 1 reply; 2+ messages in thread
From: Etienne Carriere @ 2022-12-07 15:25 UTC (permalink / raw)
To: u-boot; +Cc: Ilias Apalodimas, Etienne Carriere
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] tpm2: ftpm: open session with privileged ree login
2022-12-07 15:25 [PATCH] tpm2: ftpm: open session with privileged ree login Etienne Carriere
@ 2022-12-12 22:26 ` Ilias Apalodimas
0 siblings, 0 replies; 2+ messages in thread
From: Ilias Apalodimas @ 2022-12-12 22:26 UTC (permalink / raw)
To: Etienne Carriere; +Cc: u-boot
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>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-12-07 15:25 [PATCH] tpm2: ftpm: open session with privileged ree login Etienne Carriere
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