Closes #6667: Display VM memory as GB/TB as appropriate

netbox/templates/virtualization/virtualmachine.html

@@ -138,7 +138,7 @@
                     <td><i class="mdi mdi-chip"></i> Memory</td>
                     <td>
                         {% if object.memory %}
-                            {{ object.memory }} MB
+                            <span title="{{ object.memory }} MB">{{ object.memory|humanize_megabytes }}</span>
                         {% else %}
                             <span class="text-muted">&mdash;</span>
                         {% endif %}

netbox/utilities/templatetags/helpers.py

@@ -129,6 +129,20 @@ def humanize_speed(speed):
         return '{} Kbps'.format(speed)
 
 
+@register.filter()
+def humanize_megabytes(mb):
+    """
+    Express a number of megabytes in the most suitable unit (e.g. gigabytes or terabytes).
+    """
+    if not mb:
+        return ''
+    if mb >= 1048576:
+        return f'{int(mb / 1048576)} TB'
+    if mb >= 1024:
+        return f'{int(mb / 1024)} GB'
+    return f'{mb} MB'
+
+
 @register.filter()
 def tzoffset(value):
     """