From a8883aff32f1e15b65e210462804aa2a9ab9a0b6 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Tue, 27 Aug 2013 13:33:03 -0400 Subject: [PATCH 13/20] efi: Add EFI_SECURE_BOOT bit UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit for use with efi_enabled. Signed-off-by: Josh Boyer --- arch/x86/kernel/setup.c | 2 ++ include/linux/efi.h | 1 + 2 files changed, 3 insertions(+) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index d40e961753c9..b93183336674 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1162,7 +1162,9 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_EFI_SECURE_BOOT_SIG_ENFORCE if (boot_params.secure_boot) { + set_bit(EFI_SECURE_BOOT, &efi.flags); enforce_signed_modules(); + pr_info("Secure boot enabled\n"); } #endif diff --git a/include/linux/efi.h b/include/linux/efi.h index ce943d5accfd..5af91b58afae 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1046,6 +1046,7 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_ARCH_1 7 /* First arch-specific bit */ #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_SECURE_BOOT 10 /* Are we in Secure Boot mode? */ #ifdef CONFIG_EFI /* -- 2.9.3