diff --git a/services/std_svc/sdei/sdei_main.c b/services/std_svc/sdei/sdei_main.c
index d6d092d..28afc1d 100644
--- a/services/std_svc/sdei/sdei_main.c
+++ b/services/std_svc/sdei/sdei_main.c
@@ -932,43 +932,43 @@
 	case SDEI_VERSION:
 		SDEI_LOG("> VER\n");
 		ret = sdei_version();
-		SDEI_LOG("< VER:%lx\n", ret);
+		SDEI_LOG("< VER:%llx\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_REGISTER:
 		x5 = SMC_GET_GP(handle, CTX_GPREG_X5);
-		SDEI_LOG("> REG(n:%d e:%lx a:%lx f:%x m:%lx)\n", (int) x1,
+		SDEI_LOG("> REG(n:%d e:%llx a:%llx f:%x m:%llx)\n", (int) x1,
 				x2, x3, (int) x4, x5);
 		ret = sdei_event_register(x1, x2, x3, x4, x5);
-		SDEI_LOG("< REG:%ld\n", ret);
+		SDEI_LOG("< REG:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_ENABLE:
 		SDEI_LOG("> ENABLE(n:%d)\n", (int) x1);
 		ret = sdei_event_enable(x1);
-		SDEI_LOG("< ENABLE:%ld\n", ret);
+		SDEI_LOG("< ENABLE:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_DISABLE:
 		SDEI_LOG("> DISABLE(n:%d)\n", (int) x1);
 		ret = sdei_event_disable(x1);
-		SDEI_LOG("< DISABLE:%ld\n", ret);
+		SDEI_LOG("< DISABLE:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_CONTEXT:
 		SDEI_LOG("> CTX(p:%d):%lx\n", (int) x1, read_mpidr_el1());
 		ret = sdei_event_context(handle, x1);
-		SDEI_LOG("< CTX:%ld\n", ret);
+		SDEI_LOG("< CTX:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_COMPLETE_AND_RESUME:
 		resume = 1;
 
 	case SDEI_EVENT_COMPLETE:
-		SDEI_LOG("> COMPLETE(r:%d sta/ep:%lx):%lx\n", resume, x1,
+		SDEI_LOG("> COMPLETE(r:%d sta/ep:%llx):%lx\n", resume, x1,
 				read_mpidr_el1());
 		ret = sdei_event_complete(resume, x1);
-		SDEI_LOG("< COMPLETE:%lx\n", ret);
+		SDEI_LOG("< COMPLETE:%llx\n", ret);
 
 		/*
 		 * Set error code only if the call failed. If the call
@@ -985,19 +985,19 @@
 	case SDEI_EVENT_STATUS:
 		SDEI_LOG("> STAT(n:%d)\n", (int) x1);
 		ret = sdei_event_status(x1);
-		SDEI_LOG("< STAT:%ld\n", ret);
+		SDEI_LOG("< STAT:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_GET_INFO:
 		SDEI_LOG("> INFO(n:%d, %d)\n", (int) x1, (int) x2);
 		ret = sdei_event_get_info(x1, x2);
-		SDEI_LOG("< INFO:%ld\n", ret);
+		SDEI_LOG("< INFO:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_UNREGISTER:
 		SDEI_LOG("> UNREG(n:%d)\n", (int) x1);
 		ret = sdei_event_unregister(x1);
-		SDEI_LOG("< UNREG:%ld\n", ret);
+		SDEI_LOG("< UNREG:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_PE_UNMASK:
@@ -1009,49 +1009,49 @@
 	case SDEI_PE_MASK:
 		SDEI_LOG("> MASK:%lx\n", read_mpidr_el1());
 		ret = sdei_pe_mask();
-		SDEI_LOG("< MASK:%ld\n", ret);
+		SDEI_LOG("< MASK:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_INTERRUPT_BIND:
 		SDEI_LOG("> BIND(%d)\n", (int) x1);
 		ret = sdei_interrupt_bind(x1);
-		SDEI_LOG("< BIND:%ld\n", ret);
+		SDEI_LOG("< BIND:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_INTERRUPT_RELEASE:
 		SDEI_LOG("> REL(%d)\n", (int) x1);
 		ret = sdei_interrupt_release(x1);
-		SDEI_LOG("< REL:%ld\n", ret);
+		SDEI_LOG("< REL:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_SHARED_RESET:
 		SDEI_LOG("> S_RESET():%lx\n", read_mpidr_el1());
 		ret = sdei_shared_reset();
-		SDEI_LOG("< S_RESET:%ld\n", ret);
+		SDEI_LOG("< S_RESET:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_PRIVATE_RESET:
 		SDEI_LOG("> P_RESET():%lx\n", read_mpidr_el1());
 		ret = sdei_private_reset();
-		SDEI_LOG("< P_RESET:%ld\n", ret);
+		SDEI_LOG("< P_RESET:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_ROUTING_SET:
-		SDEI_LOG("> ROUTE_SET(n:%d f:%lx aff:%lx)\n", (int) x1, x2, x3);
+		SDEI_LOG("> ROUTE_SET(n:%d f:%llx aff:%llx)\n", (int) x1, x2, x3);
 		ret = sdei_event_routing_set(x1, x2, x3);
-		SDEI_LOG("< ROUTE_SET:%ld\n", ret);
+		SDEI_LOG("< ROUTE_SET:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_FEATURES:
-		SDEI_LOG("> FTRS(f:%lx)\n", x1);
+		SDEI_LOG("> FTRS(f:%llx)\n", x1);
 		ret = sdei_features(x1);
-		SDEI_LOG("< FTRS:%lx\n", ret);
+		SDEI_LOG("< FTRS:%llx\n", ret);
 		SMC_RET1(handle, ret);
 
 	case SDEI_EVENT_SIGNAL:
-		SDEI_LOG("> SIGNAL(e:%lx t:%lx)\n", x1, x2);
+		SDEI_LOG("> SIGNAL(e:%llx t:%llx)\n", x1, x2);
 		ret = sdei_signal(x1, x2);
-		SDEI_LOG("< SIGNAL:%ld\n", ret);
+		SDEI_LOG("< SIGNAL:%lld\n", ret);
 		SMC_RET1(handle, ret);
 
 	default: