feat(rmmd): add FEAT_MEC support
This patch provides architectural support for further use of
Memory Encryption Contexts (MEC) by declaring the necessary
registers, bits, masks, helpers and values and modifying the
necessary registers to enable FEAT_MEC.
Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: I670dbfcef46e131dcbf3a0b927467ebf6f438fa4
diff --git a/include/services/arm_arch_svc.h b/include/services/arm_arch_svc.h
index ed9bc95..5a69ae8 100644
--- a/include/services/arm_arch_svc.h
+++ b/include/services/arm_arch_svc.h
@@ -125,6 +125,12 @@
#define SCR_FEAT_RAS (0)
#endif
+#if ENABLE_FEAT_MEC
+#define SCR_FEAT_MEC SCR_MECEn_BIT
+#else
+#define SCR_FEAT_MEC (0)
+#endif
+
#ifndef SCR_PLAT_FEATS
#define SCR_PLAT_FEATS (0)
#endif
@@ -195,6 +201,7 @@
SCR_IRQ_BIT | \
SCR_NS_BIT | \
SCR_RES1_BITS | \
+ SCR_FEAT_MEC | \
SCR_PLAT_IGNORED)
CASSERT((SCR_EL3_FEATS & SCR_EL3_IGNORED) == 0, scr_feat_is_ignored);
CASSERT((SCR_EL3_FLIPPED & SCR_EL3_FEATS) == SCR_EL3_FLIPPED, scr_flipped_not_a_feat);