[PATCH 05/16] efi: Add EFI_SECURE_BOOT bit

[David Howells]

From: Josh Boyer <jwbo...@fedoraproject.org>

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 <jwbo...@fedoraproject.org>
Signed-off-by: David Howells <dhowe...@redhat.com>
---

 arch/x86/kernel/setup.c |    1 +
 include/linux/efi.h     |    1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 9521acce8378..539f29587712 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1164,6 +1164,7 @@ void __init setup_arch(char **cmdline_p)
        if (boot_params.secure_boot &&
            IS_ENABLED(CONFIG_EFI_SECURE_BOOT_LOCK_DOWN)) {
                lock_kernel_down();
+               set_bit(EFI_SECURE_BOOT, &efi.flags);
                pr_info("Secure boot enabled\n");
        }
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 11372fb8784c..5d7fb3e3400b 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1079,6 +1079,7 @@ 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
 /*