[PATCH v2 2/2] Use grub-file to figure out whether multiboot2 should be used for Xen.gz

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

The multiboot2 is much more preferable than multiboot. Especiall
if booting under EFI where multiboot does not have the functionality
to pass ImageHandler.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Rebase on top of  d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe
v3: Add 'else' in the conditional.
    Use a tab and four spaces instead of two tabs.
---
 util/grub.d/20_linux_xen.in | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index 083bcef..0cb0f4e 100644
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -210,8 +210,13 @@ while [ "x${xen_list}" != "x" ] ; do
 	xen_loader="xen_hypervisor"
 	module_loader="xen_module"
     else
-	xen_loader="multiboot"
-	module_loader="module"
+	if ($grub_file --is-x86-multiboot2 $current_xen); then
+	    xen_loader="multiboot2"
+	    module_loader="module2"
+	else
+	    xen_loader="multiboot"
+	    module_loader="module"
+        fi
     fi
     while [ "x$list" != "x" ] ; do
 	linux=`version_find_latest $list`
-- 
2.1.4