Set the console limit for DomUs based on a value set in xend-config.sxp.

Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Ewan Mellor <ewan@xensource.com>

tools/examples/xend-config.sxp

@@ -20,6 +20,9 @@
 # Specifying the empty string '' allows all connections.
 (console-address   'localhost')
 
+# The limit (in kilobytes) on the size of the console buffer
+(console-limit 1024)
+
 ## Use the following if VIF traffic is routed.
 # The script used to start/stop networking for xend.
 #(network-script     network-route)

tools/python/xen/xend/XendDomainInfo.py

@@ -594,7 +594,7 @@ class XendDomainInfo:
         to_store = {
             'domid':              str(self.domid),
             'vm':                 self.vmpath,
-
+            'console/limit':      str(xroot.get_console_limit() * 1024),
             'memory/target':      str(self.info['memory_KiB'])
             }
 

tools/python/xen/xend/XendRoot.py

@@ -267,6 +267,9 @@ class XendRoot:
     def get_dom0_vcpus(self):
         return self.get_config_int('dom0-cpus', self.dom0_vcpus_default)
 
+    def get_console_limit(self):
+        return self.get_config_int('console-limit', 1024)
+
 def instance():
     """Get an instance of XendRoot.
     Use this instead of the constructor.