1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 8c9c2bdba092..c9a06e573fa5 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -913,6 +913,11 @@ late_initcall(hpet_insert_resource);
 
 static int __init acpi_parse_fadt(struct acpi_table_header *table)
 {
+        if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) {
+                pr_debug("ACPI: no legacy devices present\n");
+                x86_platform.legacy.devices.pnpbios = 0;
+        }
+
         if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) {
                 pr_debug("ACPI: not registering RTC platform device\n");
                 x86_platform.legacy.rtc = 0;