From: Josh Boyer <[email protected]> UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit that can be passed to efi_enabled() to find out whether secure boot is enabled.
This will be used by the SysRq+x handler, registered by the x86 arch, to find out whether secure boot mode is enabled so that it can be disabled. Signed-off-by: Josh Boyer <[email protected]> Signed-off-by: David Howells <[email protected]> cc: [email protected] --- drivers/firmware/efi/secure_boot.c | 1 + include/linux/efi.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/firmware/efi/secure_boot.c b/drivers/firmware/efi/secure_boot.c index cf5bccae15e8..730518061a14 100644 --- a/drivers/firmware/efi/secure_boot.c +++ b/drivers/firmware/efi/secure_boot.c @@ -24,6 +24,7 @@ void __init efi_set_secure_boot(enum efi_secureboot_mode mode) pr_info("Secure boot disabled\n"); break; case efi_secureboot_mode_enabled: + set_bit(EFI_SECURE_BOOT, &efi.flags); pr_info("Secure boot enabled\n"); break; default: diff --git a/include/linux/efi.h b/include/linux/efi.h index d8938a780290..536a10111bde 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1069,6 +1069,7 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_DBG 8 /* Print additional debug info at runtime */ #define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */ #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */ +#define EFI_SECURE_BOOT 11 /* Are we in Secure Boot mode? */ #ifdef CONFIG_EFI /* -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
