[PATCH] xl.cfg: document the maxmem= option

[Olaf Hering <olaf@aepfle.de>]

# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1338562334 -7200
# Node ID fde8ad0252ee6ddb8d71dda869db3b20b3d9ca62
# Parent  3b4346d6002e9ffcd4a9f50b031bd2a77b16b1dd
xl.cfg: document the maxmem= option

Signed-off-by: Olaf Hering <olaf@aepfle.de>

diff -r 3b4346d6002e -r fde8ad0252ee docs/man/xl.cfg.pod.5
--- a/docs/man/xl.cfg.pod.5
+++ b/docs/man/xl.cfg.pod.5
@@ -174,6 +174,16 @@ Honoured by the sedf scheduler.
 
 Start the guest with MBYTES megabytes of RAM.
 
+=item B<maxmem=MBYTES>
+
+Specifies the maximum amount of memory a guest can ever see.
+The value of B<maxmem=> must be equal or greater than B<memory=>.
+
+In combination with B<memory=> it will start the guest "pre-ballooned",
+if the values of B<memory=> and B<maxmem=> differ.
+A "pre-ballooned" HVM guest needs a balloon driver, without a balloon driver
+it will crash.
+
 =item B<on_poweroff="ACTION">
 
 Specifies what should be done with the domain if it shuts itself down.
@@ -971,10 +981,6 @@ XXX
 
 XXX
 
-=item B<maxmem=NUMBER>
-
-XXX
-
 =item B<nodes=XXX>
 
 XXX