Commit Graph

8 Commits

Author SHA1 Message Date
Jens Wiklander
617d8e8b34 optee: sync OP-TEE headers
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>
2021-02-02 14:50:41 +01:00
Bjorn Helgaas
bed13b5fc4 tee: optee: fix 'physical' typos
Fix misspellings of "physical".

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2021-02-02 14:50:28 +01:00
Cedric Neveux
ba171d3f08 driver: tee: Handle NULL pointer indication from client
TEE Client introduce a new capability "TEE_GEN_CAP_MEMREF_NULL"
to handle the support of the shared memory buffer with a NULL pointer.

This capability depends on TEE Capabilities and driver support.
Driver and TEE exchange capabilities at driver initialization.

Signed-off-by: Michael Whitfield <michael.whitfield@nxp.com>
Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Tested-by: Joakim Bech <joakim.bech@linaro.org> (QEMU)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2020-08-21 08:55:13 +02:00
Jerome Forissier
32356d309c tee: optee: update optee_msg.h and optee_smc.h to dual license
The files optee_msg.h and optee_smc.h (under drivers/tee/optee) contain
information originating from the OP-TEE OS project [1] [2], where the
licensing terms are BSD 2-Clause. Therefore, apply a dual license to
those files.

Link: [1] https://github.com/OP-TEE/optee_os/blob/master/core/include/optee_msg.h
Link: [2] https://github.com/OP-TEE/optee_os/blob/master/core/arch/arm/include/sm/optee_smc.h
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2019-02-28 13:49:29 +01:00
Jérôme Forissier
6e112de042 tee: optee: GET_OS_REVISION: document a2 as a build identifier
In the OPTEE_SMC_CALL_GET_OS_REVISION request, the previously reserved
parameter a2 is now documented as being an optional build identifier
(such as an SCM revision or commit ID, for instance).

A new structure optee_smc_call_get_os_revision_result is introduced to
be used when querying the secure OS version, instead of re-using the
struct defined for OPTEE_SMC_CALLS_REVISION.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Matthias Brugger <mbruger@suse.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2018-03-06 11:03:55 +01:00
Volodymyr Babchuk
de5c6dfc43 tee: optee: Update protocol definitions
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>
2017-12-15 13:32:31 +01:00
David Wang
39e6519a3f tee: optee: sync with new naming of interrupts
In the latest changes of optee_os, the interrupts' names are
changed to "native" and "foreign" interrupts.

Signed-off-by: David Wang <david.wang@arm.com>
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2017-08-04 10:30:27 +02:00
Jens Wiklander
4fb0a5eb36 tee: add OP-TEE driver
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>
2017-03-10 14:51:52 +01:00