bl32: add secure interrupt handling in AArch32 sp_min
Add support for a minimal secure interrupt service in sp_min for
the AArch32 implementation. Hard code that only FIQs are handled.
Introduce bolean build directive SP_MIN_WITH_SECURE_FIQ to enable
FIQ handling from SP_MIN.
Configure SCR[FIQ] and SCR[FW] from generic code for both cold and
warm boots to handle FIQ in secure state from monitor.
Since SP_MIN architecture, FIQ are always trapped when system executes
in non secure state. Hence discard relay of the secure/non-secure
state in the FIQ handler.
Change-Id: I1f7d1dc7b21f6f90011b7f3fcd921e455592f5e7
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
diff --git a/bl32/sp_min/sp_min_private.h b/bl32/sp_min/sp_min_private.h
index 97185b9..1836af9 100644
--- a/bl32/sp_min/sp_min_private.h
+++ b/bl32/sp_min/sp_min_private.h
@@ -10,5 +10,6 @@
void sp_min_warm_entrypoint(void);
void sp_min_main(void);
void sp_min_warm_boot(void);
+void sp_min_fiq(void);
#endif /* __SP_MIN_H__ */