diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3bb46cb24a9966ac86b950d53c817e523fe7cd40..7ca41bf023c9f354cad85617f0cceab228640d65 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -189,12 +189,15 @@ early_param("acpi_rsdp", setup_acpi_rsdp);
 
 acpi_physical_address __init acpi_os_get_root_pointer(void)
 {
-	acpi_physical_address pa = 0;
+	acpi_physical_address pa;
 
 #ifdef CONFIG_KEXEC
 	if (acpi_rsdp)
 		return acpi_rsdp;
 #endif
+	pa = acpi_arch_get_root_pointer();
+	if (pa)
+		return pa;
 
 	if (efi_enabled(EFI_CONFIG_TABLES)) {
 		if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 968173ec2726d64367d18d88558975833366bc5b..15bfb15c2fa5e1c369184c3839aa2131a416b0bd 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -623,6 +623,13 @@ bool acpi_gtdt_c3stop(int type);
 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
 #endif
 
+#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
+static inline u64 acpi_arch_get_root_pointer(void)
+{
+	return 0;
+}
+#endif
+
 #else	/* !CONFIG_ACPI */
 
 #define acpi_disabled 1