| Message ID | 20221207152533.532974-1-etienne.carriere@linaro.org |
|---|---|
| State | Accepted |
| Commit | 33ba80303e93869c439828dd289fb8ef64ed3bfc |
| Headers | show |
| Series | tpm2: ftpm: open session with privileged ree login | expand |
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>
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);
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(+)