feat(rmmd): pass SMCCCv1.3 SVE hint bit to RMM
SMCCCv1.3 introduces SVE hint bit that denotes the absence of SVE
specific live state. Update the SMC function ID with SVE hint bit if it
is set the flags and pass it to RMM.
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Ibb1d73440ed1e2283a103cfd2c4592be5d3a74cb
diff --git a/services/std_svc/rmmd/rmmd_main.c b/services/std_svc/rmmd/rmmd_main.c
index b809f56..fa24a91 100644
--- a/services/std_svc/rmmd/rmmd_main.c
+++ b/services/std_svc/rmmd/rmmd_main.c
@@ -320,6 +320,14 @@
* is.
*/
if (src_sec_state == SMC_FROM_NON_SECURE) {
+ /*
+ * If SVE hint bit is set in the flags then update the SMC
+ * function id and pass it on to the lower EL.
+ */
+ if (is_sve_hint_set(flags)) {
+ smc_fid |= (FUNCID_SVE_HINT_MASK <<
+ FUNCID_SVE_HINT_SHIFT);
+ }
VERBOSE("RMMD: RMI call from non-secure world.\n");
return rmmd_smc_forward(NON_SECURE, REALM, smc_fid,
x1, x2, x3, x4, handle);