[PATCH] tpm2: ftpm: open session with privileged ree login
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);
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
participants (2)
-
Etienne Carriere -
Ilias Apalodimas