kernel/efi-Add-EFI_SECURE_BOOT-bit.patch

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From 3c01b1007e32dd8d72afc1992e48da1906b76653 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@fedoraproject.org>
Date: Tue, 27 Aug 2013 13:33:03 -0400
Subject: [PATCH] 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 5a5cf7395724..fb282ff6a802 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1144,7 +1144,9 @@ 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 45cb4ffdea62..ebe6a24cc1e1 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -923,6 +923,7 @@ extern int __init efi_setup_pcdp_console(char *);
#define EFI_64BIT 5 /* Is the firmware 64-bit? */
#define EFI_PARAVIRT 6 /* Access is via a paravirt interface */
#define EFI_ARCH_1 7 /* First arch-specific bit */
+#define EFI_SECURE_BOOT 8 /* Are we in Secure Boot mode? */
#ifdef CONFIG_EFI
/*
--
1.9.3