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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>
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@@ -204,4 +204,6 @@ source "drivers/fpga/Kconfig" | |
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source "drivers/fsi/Kconfig" | ||
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source "drivers/tee/Kconfig" | ||
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endmenu |
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# 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). |
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obj-$(CONFIG_TEE) += tee.o | ||
tee-objs += tee_core.o | ||
tee-objs += tee_shm.o | ||
tee-objs += tee_shm_pool.o |
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