efi: Print the secure boot status in x86 setup_arch()

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 <dhowells@redhat.com>

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 (IS_ENABLED(CONFIG_EFI)) {
+		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();