feat(rmmd): add RMM_MECID_KEY_UPDATE call
With this addition, TF-A now has an SMC call to handle the
update of MEC keys associated to MECIDs.
The behavior of this newly added call is empty for now until an
implementation for the MPE (Memory Protection Engine) driver is
available. Only parameter sanitization has been implemented.
Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: I2a969310b47e8c6da1817a79be0cd56158c6efc3
diff --git a/plat/arm/board/fvp/fvp_common.c b/plat/arm/board/fvp/fvp_common.c
index 7d76814..98d4bbc 100644
--- a/plat/arm/board/fvp/fvp_common.c
+++ b/plat/arm/board/fvp/fvp_common.c
@@ -7,6 +7,8 @@
#include <assert.h>
#include <string.h>
+#include <arch.h>
+#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/arm/cci.h>
#include <drivers/arm/ccn.h>
@@ -775,4 +777,16 @@
return 0;
}
+
+/*
+ * Update encryption key associated with @mecid.
+ */
+int plat_rmmd_mecid_key_update(uint16_t mecid)
+{
+ /*
+ * FVP does not provide an interface to change the encryption key associated
+ * with MECID. Hence always return success.
+ */
+ return 0;
+}
#endif /* ENABLE_RME */