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PSoC64 fails on Non-Seucre TFM_IPC_TEST_1007 test
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Description

PSoC64 system resets when it runs to TFM_IPC_TEST_1007 test

Running Test Suite IPC non-secure interface test (TFM_IPC_TEST_1XXX)...
. . .
> Executing 'TFM_IPC_TEST_1006' 
  Description: 'Call PSA RoT access APP RoT memory test service'
Connect success!
Call success!
  TEST: TFM_IPC_TEST_1006 - PASSED!
> Executing 'TFM_IPC_TEST_1007' 
  Description: 'Call PSA RoT access APP RoT readonly memory test service'
Connect success!
(Reset)

The fail path is

Secure: ipc_service_test_main()
`-- ipc_service_psa_access_app_readonly_mem
    `-- tfm_hal_memory_has_access
        `-- tfm_has_access_to_region
            `-- /* __get_IPSR(): Abort if not in Handler mode */

Since ipc_service_test_main is running as thread --> tfm_core_panic() --> reset

Event Timeline

AlamyLiu created this task.Dec 18 2020, 6:35 AM
AlamyLiu added a comment.Dec 18 2020, 9:22 AM

On a close look, the TFM_IPC_TEST_1007 seems to suggest a panic (reset).

/* The system should panic in psa_call. If runs here, the test fails. */
ret->val = TEST_FAILED;

However, after the reset, the system doesn't pass TFM_IPC_TEST_1007 and continue on to next test.
Instead, it starts over from the beginning (e.g.: PROTECTED_STORAGE test suite), and hence, in a infinite reset loop.

davidhuziji added a comment.EditedDec 18 2020, 2:54 PM

Previously, memory access check was only performed in TF-M SPM. Therefore multi-core memory access check checks whether current execution is in Handler mode.
Memory access check is allowed only in Handler mode.

However, with patch https://review.trustedfirmware.org/c/TF-M/tf-m-tests/+/7067, some PSA RoT test services also call memory access check. Thus multi-core memory access check fails during Handler mode check.

AlamyLiu closed this task as Resolved.Dec 22 2020, 6:02 PM

Confirm the issue is fixed.