grub2/0056-20_linux_xen-load-xen-or-multiboot-2-modules-as-need.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 9 Jul 2019 14:31:19 +0200
Subject: [PATCH] 20_linux_xen: load xen or multiboot{,2} modules as needed.

Signed-off-by: Peter Jones <pjones@redhat.com>
---
 util/grub.d/20_linux_xen.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index e9e73b815f..c23b064be6 100644
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -153,6 +153,7 @@ linux_entry_xsm ()
         else
             xen_rm_opts="no-real-mode edd=off"
         fi
+	insmod ${xen_module}
 	${xen_loader}	${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts}
 	echo	'$(echo "$lmessage" | grub_quote)'
 	${module_loader}	${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args}
@@ -166,6 +167,7 @@ EOF
     done
     sed "s/^/$submenu_indentation/" << EOF
 	echo	'$(echo "$message" | grub_quote)'
+	insmod ${xen_module}
 	${module_loader}	--nounzip   $(echo $initrd_path)
 EOF
   fi
@@ -253,13 +255,16 @@ while [ "x${xen_list}" != "x" ] ; do
 	echo "	submenu '$(gettext_printf "Xen hypervisor, version %s" "${xen_version}" | grub_quote)' \$menuentry_id_option 'xen-hypervisor-$xen_version-$boot_device_id' {"
     fi
     if ($grub_file --is-arm64-efi $current_xen); then
+	xen_module="xen_boot"
 	xen_loader="xen_hypervisor"
 	module_loader="xen_module"
     else
 	if ($grub_file --is-x86-multiboot2 $current_xen); then
+	    xen_module="multiboot2"
 	    xen_loader="multiboot2"
 	    module_loader="module2"
 	else
+	    xen_module="multiboot"
 	    xen_loader="multiboot"
 	    module_loader="module"
         fi