diff options
| -rw-r--r-- | drivers/firmware/efi/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/firmware/efi/efi.c | 2 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index c981be17d3c0..8ebc6f8bf9b9 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -129,6 +129,17 @@ config EFI_TEST Say Y here to enable the runtime services support via /dev/efi_test. If unsure, say N. +config EFI_CUSTOM_SSDT_OVERLAYS + bool "Load custom ACPI SSDT overlay from an EFI variable" + depends on EFI_VARS && ACPI + default ACPI_TABLE_UPGRADE + help + Allow loading of an ACPI SSDT overlay from an EFI variable specified + by a kernel command line option. + + See Documentation/admin-guide/acpi/ssdt-overlays.rst for more + information. + endmenu config UEFI_CPER diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index d89457d62a24..6e6a590b8388 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -198,7 +198,7 @@ static void generic_ops_unregister(void) efivars_unregister(&generic_efivars); } -#if IS_ENABLED(CONFIG_ACPI) +#ifdef CONFIG_EFI_CUSTOM_SSDT_OVERLAYS #define EFIVAR_SSDT_NAME_MAX 16 static char efivar_ssdt[EFIVAR_SSDT_NAME_MAX] __initdata; static int __init efivar_ssdt_setup(char *str) |