From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Howells Subject: [PATCH 6/6] efi: Add EFI_SECURE_BOOT bit Date: Tue, 22 Nov 2016 00:32:15 +0000 Message-ID: <147977473590.6360.6303661595805578599.stgit@warthog.procyon.org.uk> References: <20161117123731.GA11573@wunner.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20161117123731.GA11573@wunner.de> Sender: linux-kernel-owner@vger.kernel.org To: lukas@wunner.de Cc: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, dhowells@redhat.com, linux-security-module@vger.kernel.org, Josh Boyer , keyrings@vger.kernel.org List-Id: linux-efi@vger.kernel.org From: Josh Boyer 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 Signed-off-by: David Howells --- arch/x86/kernel/setup.c | 5 +++++ include/linux/efi.h | 1 + 2 files changed, 6 insertions(+) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 9c337b0e8ba7..a197221a451b 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1160,6 +1160,11 @@ void __init setup_arch(char **cmdline_p) io_delay_init(); + if (boot_params.secure_boot) { + set_bit(EFI_SECURE_BOOT, &efi.flags); + pr_info("Secure boot enabled\n"); + } + /* * Parse the ACPI tables for possible boot-time SMP configuration. */ diff --git a/include/linux/efi.h b/include/linux/efi.h index 615d8704f048..3864de3b40ad 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1066,6 +1066,7 @@ 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 /*