feat(spmc): enable parsing of messaging methods from manifest
Ensure that the `messaging-methods` entry is populated in
an SP's manifest. Currently only direct messaging is supported
so alert if this does not match the manifest entry.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I67f1fad71a3507627993a004e0f8579388faf178
diff --git a/services/std_svc/spm/el3_spmc/spmc_main.c b/services/std_svc/spm/el3_spmc/spmc_main.c
index 35def25..1eb4a30 100644
--- a/services/std_svc/spm/el3_spmc/spmc_main.c
+++ b/services/std_svc/spm/el3_spmc/spmc_main.c
@@ -545,6 +545,23 @@
sp->execution_state = config_32;
ret = fdt_read_uint32(sp_manifest, node,
+ "messaging-method", &config_32);
+ if (ret != 0) {
+ ERROR("Missing Secure Partition messaging method.\n");
+ return ret;
+ }
+
+ /* Validate this entry, we currently only support direct messaging. */
+ if ((config_32 & ~(FFA_PARTITION_DIRECT_REQ_RECV |
+ FFA_PARTITION_DIRECT_REQ_SEND)) != 0U) {
+ WARN("Invalid Secure Partition messaging method (0x%x)\n",
+ config_32);
+ return -EINVAL;
+ }
+
+ sp->properties = config_32;
+
+ ret = fdt_read_uint32(sp_manifest, node,
"execution-ctx-count", &config_32);
if (ret != 0) {