diff --git a/plat/arm/common/aarch64/arm_sdei.c b/plat/arm/common/aarch64/arm_sdei.c
new file mode 100644
index 0000000..514800c
--- /dev/null
+++ b/plat/arm/common/aarch64/arm_sdei.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* SDEI configuration for ARM platforms */
+
+#include <ehf.h>
+#include <platform_def.h>
+#include <sdei.h>
+
+/* Private event mappings */
+static sdei_ev_map_t arm_private_sdei[] = {
+	/* Event 0 */
+	SDEI_DEFINE_EVENT_0(ARM_SDEI_SGI),
+
+	/* Dynamic private events */
+	SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_0, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+	SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_1, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+	SDEI_PRIVATE_EVENT(ARM_SDEI_DP_EVENT_2, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+};
+
+/* Shared event mappings */
+static sdei_ev_map_t arm_shared_sdei[] = {
+	/* Dynamic shared events */
+	SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_0, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+	SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_1, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+	SDEI_SHARED_EVENT(ARM_SDEI_DS_EVENT_2, SDEI_DYN_IRQ, SDEI_MAPF_DYNAMIC),
+};
+
+/* Export ARM SDEI events */
+REGISTER_SDEI_MAP(arm_private_sdei, arm_shared_sdei);
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index a3cd9d8..17acae5 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -188,6 +188,10 @@
 BL31_SOURCES		+=	plat/arm/common/aarch64/arm_ehf.c
 endif
 
+ifeq (${SDEI_SUPPORT},1)
+BL31_SOURCES		+=	plat/arm/common/aarch64/arm_sdei.c
+endif
+
 ifneq (${TRUSTED_BOARD_BOOT},0)
 
     # Include common TBB sources