Hi Simon,
On Tue, Dec 29, 2020 at 5:34 AM Simon Glass sjg@chromium.org wrote:
Hi Jorge,
On Mon, 21 Dec 2020 at 11:15, Jorge Ramirez-Ortiz jorge@foundries.io wrote:
This commit gives the secure world access to the I2C bus so it can communicate with I2C slaves (tipically those would be secure elements
typically
like the NXP SE050).
Tested on imx8mmevk.
We don't seem to have any optee tests in U-Boot at present. I vaguely recall they were coming at some point. I think we need:
- a sandbox fake drive for optee, that understands and responds to the
6 uclass calls at a basic level
It already exists here drivers/tee/sandbox.c. Basically what can be additionally done is extending existing optee sandbox driver to support RPCs (check drivers/tee/optee/core.c, do_call_with_arg() for details) for triggering tee supplicant. Presumably that wasn't initially done as frankly it didn't make any sense because of the absence of RPMB emulation in sandbox.
There are also AVB tests, that under the hood use OP-TEE API and sandbox driver for persistent storage read/write tests in test/py/tests/test_android/test_avb.py
- an update to get_invoke_func() that provides a sandbox function too
Then we should be able to run optee tests in CI.
It is not a lot of work, but I don't think we should add to optee until this is resolved.
Regards, Simon [.]