Re: [Xen-users] [Just a new try] Questsions about Stubdomains

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2012-12-11 at 07:22 +0000, xen@xxxxxxxxxx wrote:
> Hello all,
> 
> I hope that it now works and there is no longer problems with my  
> mailsystem. It could be that it already worked but it doesn't look  
> like because the mail don't came back from the list.
> 
> I am trying to setup stubdomains for my running domains on Xen 4.2. I  
> read this wiki articles:
> 
> 
> http://wiki.xen.org/wiki/StubDom
> http://wiki.xen.org/wiki/Device_Model_Stub_Domains
> 
> I am able to activate a stubdomain for a normal domain but this domain  
> is so basic in it's resources (e.g. 32MB RAM) that the normal guest  
> can't be used.

I'm not sure what you mean by this.

>  How can I tell the domain that it should use a  
> stubdomain with an explicit configuration? Do I need to create a  
> config file for the stubdomain in the same folder where the  
> configuration for the normal domain is stored? Or how could I do this?

Enabling stubdomains for an existing HVM guest should be a case of
adding a single line to its configuration file:
   device_model_stubdomain_override = 1

This option is described in the xl.cfg(5) man page and is referenced by
the second wiki page you linked above.

If you continue to have trouble then please provide log files and your
guest configuration file.
http://wiki.xen.org/wiki/Reporting_Bugs_against_Xen contains a handy
list of places to look for logs etc.

> And should I use stubdomains for PV and HVM guest or does only HVM  
> guests support stubdomains?

A qemu stubdomain only makes sense for an HVM guest since a PV guest has
no emulated devices and therefore no emulated devices (which is what a
qemu stub provides).

> 
> Would be greate to get a few answers.
> 
> Best Regards
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users



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