Add small memory warning message to domain configuration examples.

Signed-off-by: Daniel Stekloff <dsteklof@us.ibm.com>

tools/examples/xmexample.hvm

@@ -21,6 +21,10 @@ kernel = "/usr/lib/xen/boot/hvmloader"
 builder='hvm'
 
 # Initial memory allocation (in megabytes) for the new domain.
+#
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 128
 
 # A name for your domain. All domains must have different names.

tools/examples/xmexample.nbd

@@ -10,7 +10,12 @@
 
 kernel = "/boot/vmlinuz-2.6.13-15b-xen"
 ramdisk = "/boot/initrd-2.6.13-15b-xen"
+
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 128
+
 name = "nbd4"
 vif = [ '' ]
 # Please change PORT

tools/examples/xmexample.vti

@@ -18,6 +18,10 @@ kernel = "/boot/Flash.fd"
 builder='hvm'
 
 # Initial memory allocation (in megabytes) for the new domain.
+#
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 256
 
 # A name for your domain. All domains must have different names.

tools/examples/xmexample1

@@ -17,6 +17,10 @@ kernel = "/boot/vmlinuz-2.6.10-xenU"
 #builder='linux'
 
 # Initial memory allocation (in megabytes) for the new domain.
+#
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 64
 
 # A name for your domain. All domains must have different names.

tools/examples/xmexample2

@@ -45,6 +45,10 @@ kernel = "/boot/vmlinuz-2.6.10-xenU"
 #builder='linux'
 
 # Initial memory allocation (in megabytes) for the new domain.
+#
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 64
 
 # A name for the new domain. All domains have to have different names,

tools/examples/xmexample3

@@ -45,6 +45,10 @@ kernel = "/path/to/domU/kernel"
 #builder='linux'
 
 # Initial memory allocation (in megabytes) for the new domain.
+#
+# WARNING: Creating a domain with insufficient memory may cause out of
+#          memory errors. The domain needs enough memory to boot kernel
+#          and modules. Allocating less than 32MBs is not recommended.
 memory = 64
 
 # A name for the new domain. All domains have to have different names,