feat(spmd): el3 direct message API
This patch implements an API that is exposed to SPMD logical partitions
that can be used to send direct messages to a secure partition.
It also adds required code in the SPMD smc handler to complete the
direct response appropriately.
Change-Id: I2d0e38415f13ad4fd28f8984d565036b7d3a9e71
Signed-off-by: Raghu Krishnamurthy <raghu.ncstate@gmail.com>
diff --git a/services/std_svc/spmd/spmd_private.h b/services/std_svc/spmd/spmd_private.h
index ff6942e..2378799 100644
--- a/services/std_svc/spmd/spmd_private.h
+++ b/services/std_svc/spmd/spmd_private.h
@@ -52,8 +52,14 @@
cpu_context_t cpu_ctx;
spmc_state_t state;
bool secure_interrupt_ongoing;
+#if ENABLE_SPMD_LP
+ uint8_t spmd_lp_sync_req_ongoing;
+#endif
} spmd_spm_core_context_t;
+/* Flags to indicate ongoing requests for SPMD EL3 logical partitions */
+#define SPMD_LP_FFA_DIR_REQ_ONGOING U(0x1)
+
/*
* Reserve ID for NS physical FFA Endpoint.
*/