Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Vishnu Banavath <vishnu.banavath@arm.com>

From b3fde6c2e1a950214f760ab9f194f3a6572292a8 Mon Sep 17 00:00:00 2001
From: Balint Dobszay <balint.dobszay@arm.com>
Date: Fri, 15 Jul 2022 13:45:54 +0200
Subject: [PATCH] Handle logging syscall

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Ib8151cc9c66aea8bcc8fe8b1ecdc3f9f9c5f14e4

%% original patch: 0004-Handle-logging-syscall.patch

diff --git a/core/arch/arm/kernel/spmc_sp_handler.c b/core/arch/arm/kernel/spmc_sp_handler.c
index e0fa0aa6..c7a45387 100644
--- a/core/arch/arm/kernel/spmc_sp_handler.c
+++ b/core/arch/arm/kernel/spmc_sp_handler.c
@@ -1004,6 +1004,12 @@ void spmc_sp_msg_handler(struct thread_smc_args *args,
 			ffa_mem_reclaim(args, caller_sp);
 			sp_enter(args, caller_sp);
 			break;
+		case 0xdeadbeef:
+			ts_push_current_session(&caller_sp->ts_sess);
+			IMSG("%s", (char *)args->a1);
+			ts_pop_current_session();
+			sp_enter(args, caller_sp);
+			break;
 		default:
 			EMSG("Unhandled FFA function ID %#"PRIx32,
 			     (uint32_t)args->a0);
-- 
2.17.1