Hello I start using FIH library and I doubt that it can solve following fault injection :

Here are 2 tests function being placed by linker very closed from each other to make possible to jump from test_1 start address to test_2 start address with a fault injection. fih_int test_1(void) { fih_int fih_rc = FIH_FAILURE; fih_rc = fih_int_encode(TFM_PLAT_ERR_SUCCESS); FIH_RET(fih_rc); }

fih_int test_2(void) { fih_int fih_rc = FIH_FAILURE; fih_rc = fih_int_encode(TFM_PLAT_ERR_SUCCESS); FIH_RET(fih_rc); }

Is the following able to detect that code return from test_2 instead of test_1 after such fault ? FIH_CALL(test_1()); if (fih_not_eq(fih_rc, fih_int_encode(TFM_HAL_SUCCESS))) { tfm_core_panic(); }

Best regards Michel