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

[Kaitlin Rupert]

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 at linux.vnet.ibm.com