feat(spmd): add support for FFA_SPM_ID_GET
Handle calls to the FFA_SPM_ID_GET interface. If FFA_SPM_ID_GET is
invoked from the non-secure physical FF-A instance, return the SPMC id
(defined in the SPMC manifest). If FFA_SPM_ID_GET is invoked from
the secure physical FF-A instance (e.g. the SPMC), return the SPMD id.
Change-Id: Id6d4e96b1da2510386d344e09c4553dba01227ec
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
diff --git a/services/std_svc/spmd/spmd_main.c b/services/std_svc/spmd/spmd_main.c
index 06039f0..a0f0b01 100644
--- a/services/std_svc/spmd/spmd_main.c
+++ b/services/std_svc/spmd/spmd_main.c
@@ -552,6 +552,30 @@
return spmd_ffa_error_return(handle, FFA_ERROR_NOT_SUPPORTED);
break; /* Not reached */
+ case FFA_SPM_ID_GET:
+ if (MAKE_FFA_VERSION(1, 1) > FFA_VERSION_COMPILED) {
+ return spmd_ffa_error_return(handle,
+ FFA_ERROR_NOT_SUPPORTED);
+ }
+ /*
+ * Returns the ID of the SPMC or SPMD depending on the FF-A
+ * instance where this function is invoked
+ */
+ if (!secure_origin) {
+ SMC_RET8(handle, FFA_SUCCESS_SMC32,
+ FFA_TARGET_INFO_MBZ, spmc_attrs.spmc_id,
+ FFA_PARAM_MBZ, FFA_PARAM_MBZ,
+ FFA_PARAM_MBZ, FFA_PARAM_MBZ,
+ FFA_PARAM_MBZ);
+ }
+ SMC_RET8(handle, FFA_SUCCESS_SMC32,
+ FFA_TARGET_INFO_MBZ, SPMD_DIRECT_MSG_ENDPOINT_ID,
+ FFA_PARAM_MBZ, FFA_PARAM_MBZ,
+ FFA_PARAM_MBZ, FFA_PARAM_MBZ,
+ FFA_PARAM_MBZ);
+
+ break; /* not reached */
+
case FFA_MSG_SEND_DIRECT_REQ_SMC32:
if (secure_origin && spmd_is_spmc_message(x1)) {
ret = spmd_handle_spmc_message(x3, x4,