Adds support for using FF-A [1] as transport to the OP-TEE driver.
Introduces struct optee_msg_param_fmem which carries all information
needed when OP-TEE is calling FFA_MEM_RETRIEVE_REQ to get the shared
memory reference mapped by the hypervisor in S-EL2. Register usage is
also updated to include the information needed.
The FF-A part of this driver is enabled if CONFIG_ARM_FFA_TRANSPORT is
enabled.
[1] https://developer.arm.com/documentation/den0077/latest
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Prior to this patch optee_open_session() was making assumptions about
the internal format of uuid_t by casting a memory location in a
parameter struct to uuid_t *. Fix this using export_uuid() to get a well
defined binary representation and also add an octets field in struct
optee_msg_param in order to avoid casting.
Fixes: c5b4312bea ("tee: optee: Add support for session login client UUID generation")
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Pulls in updates in the internal headers from OP-TEE OS [1]. A few
defines has been shortened, hence the changes in rpc.c. Defines not used
by the driver in tee_rpc_cmd.h has been filtered out.
Note that this does not change the ABI.
Link: [1] https://github.com/OP-TEE/optee_os
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Use flexible-array member introduced in C99 instead of zero-length
array. Most of zero-length array was already taken care in previous
patch [1]. Now modified few more cases which were not handled earlier.
[1]. https://patchwork.kernel.org/patch/11394197/
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Some secure elements like NXP's SE050 sit on I2C buses. For OP-TEE to
control this type of cryptographic devices it needs coordinated access
to the bus, so collisions and RUNTIME_PM dont get in the way.
This trampoline driver allow OP-TEE to access them.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
There were changes in REE<->OP-TEE ABI recently.
Now ABI allows us to pass non-contiguous memory buffers as list of
pages to OP-TEE. This can be achieved by using new parameter attribute
OPTEE_MSG_ATTR_NONCONTIG.
OP-TEE also is able to use all non-secure RAM for shared buffers. This
new capability is enabled with OPTEE_SMC_SEC_CAP_DYNAMIC_SHM flag.
This patch adds necessary definitions to the protocol definition files at
Linux side.
Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Adds a OP-TEE driver which also can be compiled as a loadable module.
* Targets ARM and ARM64
* Supports using reserved memory from OP-TEE as shared memory
* Probes OP-TEE version using SMCs
* Accepts requests on privileged and unprivileged device
* Uses OPTEE message protocol version 2 to communicate with secure world
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>
Jens Wiklander