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From d6ee50f581b43b16733b8731369b071d609d5048 Mon Sep 17 00:00:00 2001
From: Emekcan Aras <emekcan.aras@arm.com>
Date: Thu, 31 Aug 2023 10:51:54 +0100
Subject: [PATCH] Handle logging syscall

Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
Upstream-Status: Pending [upstreamed differently in 280b6a3]
---
 core/arch/arm/kernel/spmc_sp_handler.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/core/arch/arm/kernel/spmc_sp_handler.c b/core/arch/arm/kernel/spmc_sp_handler.c
index 1f218a0df..0676e8898 100644
--- a/core/arch/arm/kernel/spmc_sp_handler.c
+++ b/core/arch/arm/kernel/spmc_sp_handler.c
@@ -1276,7 +1276,12 @@ void spmc_sp_msg_handler(struct thread_smc_args *args,
 			handle_console_log(args);
 			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