Core: Clear FP status before SPM initialization
Float point (FP) is forbidden during SPM initialization, clear it
before handler mode SPM initialization. And return the generic
EXC_RETURN for subsequent thread scheduling.
The usage of FP is still valid before SPM initialization and
the subsequent thread execution, just do not happen during SPM
initialization.
Change-Id: I48d7bd0f140cb1c933cdd621d598446cb81eaee3
Signed-off-by: Ken Liu <ken.liu@arm.com>
diff --git a/secure_fw/spm/spm_api.h b/secure_fw/spm/spm_api.h
index d7d0e7d..fbcda09 100644
--- a/secure_fw/spm/spm_api.h
+++ b/secure_fw/spm/spm_api.h
@@ -681,8 +681,11 @@
* \brief SPM initialization implementation
*
* \details This function must be called under handler mode.
+ * \retval This function returns an EXC_RETURN value. Other
+ * faults would panic the execution and never
+ * returned.
*/
-void tfm_spm_init(void);
+uint32_t tfm_spm_init(void);
#endif /* ifdef(TFM_PSA_API) */