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tpm2: ftpm: open session with privileged ree login

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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>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Etienne Carriere 2022-12-07 16:25:33 +01:00 committed by Ilias Apalodimas
parent 2243922edc
commit 33ba80303e
1 changed files with 1 additions and 0 deletions
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drivers/tpm/tpm2_ftpm_tee.c
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@ -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);