From 04e65e01058ed6357b932e64b19e4bf762f04970 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Tue, 27 Aug 2013 13:33:03 -0400 Subject: [PATCH 2/9] 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 bdb9881c7afd..a666b6c29c77 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1154,7 +1154,9 @@ 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 c2db3ca22217..8cb38cfcba74 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1062,6 +1062,7 @@ 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 /* -- 2.5.5