diff --git a/include/bl31/context_mgmt.h b/include/bl31/context_mgmt.h
index d2598ee..ad9d785 100644
--- a/include/bl31/context_mgmt.h
+++ b/include/bl31/context_mgmt.h
@@ -47,10 +47,13 @@
 extern void cm_el1_sysregs_context_restore(uint32_t security_state);
 extern void cm_set_el3_eret_context(uint32_t security_state, uint64_t entrypoint,
 		uint32_t spsr, uint32_t scr);
-extern void cm_set_el3_elr(uint32_t security_state, uint64_t entrypoint);
+extern void cm_set_elr_el3(uint32_t security_state, uint64_t entrypoint);
+extern void cm_write_scr_el3_bit(uint32_t security_state,
+				 uint32_t bit_pos,
+				 uint32_t value);
 extern void cm_set_next_eret_context(uint32_t security_state);
 extern void cm_init_pcpu_ptr_cache();
 extern void cm_set_pcpu_ptr_cache(const void *pcpu_ptr);
 extern void *cm_get_pcpu_ptr_cache(void);
-
+extern uint32_t cm_get_scr_el3(uint32_t security_state);
 #endif /* __CM_H__ */
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index 1c11af3..68bab36 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -148,6 +148,7 @@
 #define SCR_FIQ_BIT		(1 << 2)
 #define SCR_IRQ_BIT		(1 << 1)
 #define SCR_NS_BIT		(1 << 0)
+#define SCR_VALID_BIT_MASK	0x2f8f
 
 /* HCR definitions */
 #define HCR_RW_BIT		(1ull << 31)