From 961a3e3bd263522e618c023cb32f49a741fc3b88 Mon Sep 17 00:00:00 2001
From: Florent Carli <florent.carli@rte-france.com>
Date: Sun, 23 Feb 2025 10:33:33 +0100
Subject: [PATCH] guest template: add memory ballooning

This helps optimize the host memory utilization

Signed-off-by: Florent Carli <florent.carli@rte-france.com>
---
 templates/vm/guest.xml.j2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/templates/vm/guest.xml.j2 b/templates/vm/guest.xml.j2
index ae07a2e21..e9da04d9c 100644
--- a/templates/vm/guest.xml.j2
+++ b/templates/vm/guest.xml.j2
@@ -201,7 +201,13 @@
         <console type="pty">
             <target type="serial" port="0" />
         </console>
+{% if "memballoon" in vm.vm_features %}
+        <memballoon model="virtio">
+          <stats period="5" />
+        </memballoon>
+{% else %}
         <memballoon model="none" />
+{% endif %}
         <watchdog model="i6300esb" action="poweroff" />
     </devices>
 </domain>