Re: [Libvirt-cim] Difference in the value assigned to port field for Xen, KVM, LXC

23 Jan 2009

      Deepti B Kalakeri wrote:
...
Hi,
I am trying to verify the KVMRedirectionSAP. I am seeing difference in 
the way the port value is getting assigned.
I am trying to create a guest using DefineSystem(). Here is the Details 
of the GraphicsRASD I am passing as part of the ResourceSetting Parameter.
KVM_GraphicsResourceAllocationSettingData {
InstanceID = "test_redsap_dom/graphics";
ResourceType = 24;
KeyMap = "en-us";
ResourceSubType = "vnc";
Address = "127.0.0.1:5931";
};
My intention is to create a guest whose vnc port has a specific value, 
ex: 5931 in the above case.
Though the guest is getting created, the dumpxml of the guest shows that 
the port value is getting assigned to -1.
Hence the port part of the Address field in GraphicsRASD is set to -1. 
Hence the port value in the ElementName/Name is supplied as -1.
Hi Deepti,

I'm not clear which virt type you are seeing this issue on.  Is this 
with LXC only?

I wasn't able to reproduce this use.  See below for the steps I 
followed.  Let me know if these steps don't work for you.
...
Also, though the virsh shows the guest as running the EnabledState value 
for Xen and LXC guest is still set to 3 instead of setting a value of 6.
The EnabledState of the KVMRedirectionSAP changes whenever the 
connection is available.  In this case, you'll need to be running a VNC 
server on your guest in order for the EnabledState to active/available. 
  Otherwise, the KVMRedirectionSAP is offline.

===================================

Steps to define an LXC guest with vnc graphics console:

1) Open file and define XML with the following:

<?xml version="1.0" encoding="UTF-8"?>
<CIM CIMVERSION="2.0" DTDVERSION="2.0">
<MESSAGE ID="5" PROTOCOLVERSION="1.0">
<SIMPLEREQ>
<METHODCALL NAME="DefineSystem">
<LOCALINSTANCEPATH>
  <LOCALNAMESPACEPATH>
   <NAMESPACE NAME="root"/><NAMESPACE NAME="virt"/>
  </LOCALNAMESPACEPATH>
  <INSTANCENAME CLASSNAME="LXC_VirtualSystemManagementService">
   <KEYBINDING NAME="CreationClassName">
    <KEYVALUE 
VALUETYPE="string">LXC_VirtualSystemManagementService</KEYVALUE>
   </KEYBINDING>
   <KEYBINDING NAME="SystemName">
    <KEYVALUE VALUETYPE="string">hostname</KEYVALUE>
   </KEYBINDING>
  </INSTANCENAME>
</LOCALINSTANCEPATH>
<PARAMVALUE NAME="SystemSettings" PARAMTYPE="string">
<VALUE>
instance of LXC_VirtualSystemSettingData {
  CreationClassName = "LXC_VirtualSystemSettingData";
  VirtualSystemIdentifier = "test";
  ElementName = "test";
  VirtualSystemType = "LXC";
  AutomaticShutdownAction = 2;
  AutomaticRecoveryAction = 3;
  BootDevice = "hd";
};
</VALUE>
</PARAMVALUE>
<PARAMVALUE NAME="ResourceSettings" PARAMTYPE="string">
  <VALUE.ARRAY>
   <VALUE>
instance of LXC_GraphicsResourceAllocationSettingData {
   InstanceID = "test/graphics";
   ResourceType = 24;
   KeyMap = "en-us";
   ResourceSubType = "vnc";
   Address = "127.0.0.1:5931";
};
  </VALUE>
  </VALUE.ARRAY>
</PARAMVALUE>

</METHODCALL>
</SIMPLEREQ>
</MESSAGE>
</CIM>

2) Check the defined guest:

$ virsh -c lxc:///system dumpxml test

<domain type='lxc'>
   <name>test</name>
   <uuid>46c027c3-d143-4b37-97c3-ac86c9c3bca6</uuid>
   <memory>0</memory>
   <currentMemory>0</currentMemory>
   <vcpu>0</vcpu>
   <os>
     <type arch='x86_64'>exe</type>
     <init>/bin/false</init>
   </os>
   <clock offset='utc'/>
   <on_poweroff>destroy</on_poweroff>
   <on_reboot>restart</on_reboot>
   <on_crash>restart</on_crash>
   <devices>
     <console type='pty'>
       <target port='0'/>
     </console>
     <input type='mouse' bus='xen'/>
     <graphics type='vnc' port='5931' autoport='no' listen='127.0.0.1' 
keymap='en-us'/>
   </devices>
</domain>

-- 
Kaitlin Rupert
IBM Linux Technology Center
kaitlin@linux.vnet.ibm.com