1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3bb46cb24a99..7ca41bf023c9 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)