diff --git a/arch/arm64/core/xen/enlighten.c b/arch/arm64/core/xen/enlighten.c
index 91bf014b762..164947a09ff 100644
--- a/arch/arm64/core/xen/enlighten.c
+++ b/arch/arm64/core/xen/enlighten.c
@@ -42,7 +42,7 @@ static int xen_map_shared_info(const shared_info_t *shared_page)
 	return HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp);
 }
 
-int xen_enlighten_init(void)
+static int xen_enlighten_init(void)
 {
 	int ret = 0;
 	shared_info_t *info = (shared_info_t *) shared_info_buf;
@@ -66,3 +66,5 @@ int xen_enlighten_init(void)
 
 	return 0;
 }
+
+SYS_INIT(xen_enlighten_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
diff --git a/arch/arm64/include/kernel_arch_func.h b/arch/arm64/include/kernel_arch_func.h
index c37ea6257a5..f9a2ffb9821 100644
--- a/arch/arm64/include/kernel_arch_func.h
+++ b/arch/arm64/include/kernel_arch_func.h
@@ -30,13 +30,8 @@ extern "C" {
 
 #ifndef _ASMLANGUAGE
 
-extern void xen_enlighten_init(void);
-
 static ALWAYS_INLINE void arch_kernel_init(void)
 {
-#ifdef CONFIG_XEN
-	xen_enlighten_init();
-#endif
 
 #ifdef CONFIG_SOC_PER_CORE_INIT_HOOK
 	soc_per_core_init_hook();