From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Steve Langasek <steve.langasek@ubuntu.com>
Date: Mon, 13 Jan 2014 12:13:12 +0000
Subject: [PATCH] Output a menu entry for firmware setup on UEFI FastBoot
 systems

If fastboot is enabled in the BIOS then often it is not possible to
enter the firmware setup menu, add a menu entry for this.

hdegoede: Cherry picked the Ubuntu patch from:
https://git.launchpad.net/~ubuntu-core-dev/grub/+git/ubuntu/tree/debian/patches/uefi_firmware_setup.patch
Into the Fedora / RH grub version

According to:
https://git.launchpad.net/~ubuntu-core-dev/grub/+git/ubuntu/tree/debian/copyright
The patch is licensed under GPL-3+

[hdegoede: fix use with /sys/firmware/efi/efivars]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 Makefile.util.def               |  6 ++++++
 util/grub.d/30_uefi-firmware.in | 46 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 util/grub.d/30_uefi-firmware.in

diff --git a/Makefile.util.def b/Makefile.util.def
index 8b376d6e740..56bf1159a42 100644
--- a/Makefile.util.def
+++ b/Makefile.util.def
@@ -536,6 +536,12 @@ script = {
   installdir = grubconf;
 };
 
+script = {
+  name = '30_uefi-firmware';
+  common = util/grub.d/30_uefi-firmware.in;
+  installdir = grubconf;
+};
+
 script = {
   name = '40_custom';
   common = util/grub.d/40_custom.in;
diff --git a/util/grub.d/30_uefi-firmware.in b/util/grub.d/30_uefi-firmware.in
new file mode 100644
index 00000000000..93ececffea7
--- /dev/null
+++ b/util/grub.d/30_uefi-firmware.in
@@ -0,0 +1,46 @@
+#! /bin/sh
+set -e
+
+# grub-mkconfig helper script.
+# Copyright (C) 2012  Free Software Foundation, Inc.
+#
+# GRUB is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# GRUB is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+datarootdir="@datarootdir@"
+
+export TEXTDOMAIN=@PACKAGE@
+export TEXTDOMAINDIR="@localedir@"
+
+. "@datadir@/@PACKAGE@/grub-mkconfig_lib"
+
+efi_vars_dir=/sys/firmware/efi/efivars
+EFI_GLOBAL_VARIABLE=8be4df61-93ca-11d2-aa0d-00e098032b8c
+OsIndications="$efi_vars_dir/OsIndicationsSupported-$EFI_GLOBAL_VARIABLE"
+
+if [ -e "$OsIndications" ] && \
+   [ "$(( $(printf 0x%x \'"$(cat $OsIndications | cut -b5)") & 1 ))" = 1 ]; then
+  LABEL="System setup"
+
+  gettext_printf "Adding boot menu entry for EFI firmware configuration\n" >&2
+
+  onstr="$(gettext_printf "(on %s)" "${DEVICE}")"
+
+  cat << EOF
+menuentry '$LABEL' \$menuentry_id_option 'uefi-firmware' {
+	fwsetup
+}
+EOF
+fi