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authorJens Wiklander <jens.wiklander@linaro.org>2015-03-11 16:39:39 +0300
committerJens Wiklander <jens.wiklander@linaro.org>2017-03-09 17:42:33 +0300
commit967c9cca2cc50569efc65945325c173cecba83bd (patch)
treecf64178161ee3ba1cb18762604b82f2df7738c33 /drivers/tee/Kconfig
parentc8bfafb1594435889b571b79325011e8b7fd087b (diff)
downloadlinux-967c9cca2cc50569efc65945325c173cecba83bd.tar.xz
tee: generic TEE subsystem
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> 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>
Diffstat (limited to 'drivers/tee/Kconfig')
-rw-r--r--drivers/tee/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig
new file mode 100644
index 000000000000..50c244ead46d
--- /dev/null
+++ b/drivers/tee/Kconfig
@@ -0,0 +1,8 @@
+# Generic Trusted Execution Environment Configuration
+config TEE
+ tristate "Trusted Execution Environment support"
+ select DMA_SHARED_BUFFER
+ select GENERIC_ALLOCATOR
+ help
+ This implements a generic interface towards a Trusted Execution
+ Environment (TEE).