[PATCH 6/7] efi: Print the secure boot status in x86 setup_arch()

[Ard Biesheuvel]

From: David Howells <dhowe...@redhat.com>

Print the secure boot status in the x86 setup_arch() but otherwise do
nothing more for now. More functionality will be added later, but this at
least allows for testing.

Signed-off-by: David Howells <dhowe...@redhat.com>
Cc: Matt Fleming <m...@codeblueprint.co.uk>
[ardb: use efi_enabled() instead of IS_ENABLED(CONFIG_EFI)]
Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
 arch/x86/kernel/setup.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 4cfba947d774..69780edf0dde 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1176,6 +1176,20 @@ void __init setup_arch(char **cmdline_p)
        /* Allocate bigger log buffer */
        setup_log_buf(1);
 
+       if (efi_enabled(EFI_BOOT)) {
+               switch (boot_params.secure_boot) {
+               case efi_secureboot_mode_disabled:
+                       pr_info("Secure boot disabled\n");
+                       break;
+               case efi_secureboot_mode_enabled:
+                       pr_info("Secure boot enabled\n");
+                       break;
+               default:
+                       pr_info("Secure boot could not be determined\n");
+                       break;
+               }
+       }
+
        reserve_initrd();
 
        acpi_table_upgrade();
-- 
2.7.4