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From a8883aff32f1e15b65e210462804aa2a9ab9a0b6 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@fedoraproject.org>
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 <jwboyer@fedoraproject.org>
---
 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