Added new ioctl to allow users register own buffers as a shared memory.
Change-Id: Icd25a3601884472fd42feac8aff03bb52e4d7e87
Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
[jw: moved tee_shm_is_registered() declaration]
[jw: added space after __tee_shm_alloc() implementation]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
(cherry picked from commit 033ddf12bcf5326b93bd604f50a7474a434a35f9)
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Adds TEE_IOCTL_PARAM_ATTR_META which can be used to indicate meta
parameters when communicating with user space. These meta parameters can
be used by supplicant support multiple parallel requests at a time.
Change-Id: Ie866c6119b8125c08b892b7a1a1929832b2f162c
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
(cherry picked from commit f2aa97240c84b8f258710e297ba60048bd9c153e)
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Mirrors the TEE_DESC_PRIVILEGED bit of struct tee_desc:flags into struct
tee_ioctl_version_data:gen_caps as TEE_GEN_CAP_PRIVILEGED in
tee_ioctl_version()
Change-Id: Ic3961a07812c3f89a6f3006619d89945733a71a8
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
(cherry picked from commit 059cf566e123ca7eb7434285c6455d7afafb4e02)
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Initial patch for generic TEE subsystem.
This subsystem provides:
* Registration/un-registration of TEE drivers.
* Shared memory between normal world and secure world.
* Ioctl interface for interaction with user space.
* Sysfs implementation_id of TEE driver
A TEE (Trusted Execution Environment) driver is a driver that interfaces
with a trusted OS running in some secure environment, for example,
TrustZone on ARM cpus, or a separate secure co-processor etc.
The TEE subsystem can serve a TEE driver for a Global Platform compliant
TEE, but it's not limited to only Global Platform TEEs.
This patch builds on other similar implementations trying to solve
the same problem:
* "optee_linuxdriver" by among others
Jean-michel DELORME<jean-michel.delorme@st.com> and
Emmanuel MICHEL <emmanuel.michel@st.com>
* "Generic TrustZone Driver" by Javier González <javier@javigon.com>
Change-Id: I2336be6189bafb63ca0f49e0a1b16ec75b4514ac
Acked-by: Andreas Dannenberg <dannenberg@ti.com>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (RCAR H3)
Tested-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
(cherry picked from commit 967c9cca2cc50569efc65945325c173cecba83bd)
Signed-off-by: Victor Chong <victor.chong@linaro.org>
