2014-09-12 17:26:54 +00:00
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From 5a8578dc90626d4bc4d9dca2311fcdb2b75a3a87 Mon Sep 17 00:00:00 2001
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2014-08-20 17:22:24 +00:00
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From: Josh Boyer <jwboyer@fedoraproject.org>
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Date: Tue, 27 Aug 2013 13:33:03 -0400
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Subject: [PATCH] efi: Add EFI_SECURE_BOOT bit
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UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit
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for use with efi_enabled.
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Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
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---
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arch/x86/kernel/setup.c | 2 ++
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include/linux/efi.h | 1 +
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2 files changed, 3 insertions(+)
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diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
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index 5a5cf7395724..fb282ff6a802 100644
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--- a/arch/x86/kernel/setup.c
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+++ b/arch/x86/kernel/setup.c
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@@ -1144,7 +1144,9 @@ void __init setup_arch(char **cmdline_p)
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#ifdef CONFIG_EFI_SECURE_BOOT_SIG_ENFORCE
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if (boot_params.secure_boot) {
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+ set_bit(EFI_SECURE_BOOT, &efi.flags);
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enforce_signed_modules();
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+ pr_info("Secure boot enabled\n");
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}
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#endif
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diff --git a/include/linux/efi.h b/include/linux/efi.h
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index 45cb4ffdea62..ebe6a24cc1e1 100644
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--- a/include/linux/efi.h
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+++ b/include/linux/efi.h
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@@ -923,6 +923,7 @@ extern int __init efi_setup_pcdp_console(char *);
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#define EFI_64BIT 5 /* Is the firmware 64-bit? */
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#define EFI_PARAVIRT 6 /* Access is via a paravirt interface */
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#define EFI_ARCH_1 7 /* First arch-specific bit */
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+#define EFI_SECURE_BOOT 8 /* Are we in Secure Boot mode? */
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#ifdef CONFIG_EFI
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/*
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--
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1.9.3
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