Index: src/libvirt.c
===================================================================
RCS file: /data/cvs/libxen/src/libvirt.c,v
retrieving revision 1.201
diff -u -r1.201 libvirt.c
--- src/libvirt.c	31 Mar 2009 15:47:17 -0000	1.201
+++ src/libvirt.c	17 Apr 2009 14:05:12 -0000
@@ -3158,8 +3158,10 @@
  * @conn: pointer to the hypervisor connection
  *
  * provides the free memory available on the Node
+ * Note: most libvirt APIs provide memory sizes in kilobytes, but in this
+ * function the returned value is in bytes. Divide by 1024 as necessary.
  *
- * Returns the available free memory in kilobytes or 0 in case of error
+ * Returns the available free memory in bytes or 0 in case of error
  */
 unsigned long long
 virNodeGetFreeMemory(virConnectPtr conn)