util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

This patch adds the support of xen_boot command for aarch64:
    xen_hypervisor
    xen_module
These two commands are only for aarch64, since it has its own protocol and
commands to boot xen hypervisor and Dom0, but not multiboot.

For other architectures, they are still using multiboot and module
commands.

Signed-off-by: Fu Wei <fu.wei@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index c48af94..c002fc9 100644 (file)
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -122,16 +122,16 @@ linux_entry ()
         else
             xen_rm_opts="no-real-mode edd=off"
         fi
-       multiboot       ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts}
+       ${xen_loader}   ${rel_xen_dirname}/${xen_basename} placeholder ${xen_args} \${xen_rm_opts}
        echo    '$(echo "$lmessage" | grub_quote)'
-       module  ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args}
+       ${module_loader}        ${rel_dirname}/${basename} placeholder root=${linux_root_device_thisversion} ro ${args}
 EOF
   if test -n "${initrd}" ; then
     # TRANSLATORS: ramdisk isn't identifier. Should be translated.
     message="$(gettext_printf "Loading initial ramdisk ...")"
     sed "s/^/$submenu_indentation/" << EOF
        echo    '$(echo "$message" | grub_quote)'
-       module  --nounzip   ${rel_dirname}/${initrd}
+       ${module_loader}        --nounzip   ${rel_dirname}/${initrd}
 EOF
   fi
   sed "s/^/$submenu_indentation/" << EOF
@@ -206,6 +206,14 @@ while [ "x${xen_list}" != "x" ] ; do
     if [ "x$is_top_level" != xtrue ]; then
        echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" "${xen_version}" | grub_quote)' \$menuentry_id_option 'xen-hypervisor-$xen_version-$boot_device_id' {"
     fi
+    $grub_file --is-arm64-efi $current_xen
+    if [ $? -ne 0 ]; then
+       xen_loader="multiboot"
+       module_loader="module"
+    else
+       xen_loader="xen_hypervisor"
+       module_loader="xen_module"
+    fi
     while [ "x$list" != "x" ] ; do
        linux=`version_find_latest $list`
        gettext_printf "Found linux image: %s\n" "$linux" >&2