Re: libvirt Hyper-v 2012 r2 fix

vikhyath reddy <reddy.vikhyath@xxxxxxxxx> · Tue, 15 Apr 2014 18:26:31 -0700

Update,
I tried adding root\virtualization\v2 to the namespace in libvirt source code for hyperv. I ran some tests and it seems to work. I get the same functionality (supported vs non-supported drivers) as hyper-v 2008.

Do you guys want me to submit the patch? If yes, what all do I need to update to get the patch in?

Thanks,
Vik.

On Tue, Apr 15, 2014 at 5:26 PM, vikhyath reddy <reddy.vikhyath@xxxxxxxxx> wrote:

Hello everyone,
Thanks for libvirt. I did see on the libvirt page that hyper-v 2008 is supported (which it does). So I tried running it on Hyper-v 2012 r2 but virsh fails to connect by an error that says

"error: internal error: SOAP fault during enumeration: code 's:Sender', subcode 'n:CannotProcessFilter', reason 'The data source could not process the filter. The filter might be missing or it might be invalid. Change the filter and try the request again.  ', detail '500The specified class does not exist in the given namespace. HRESULT 0x8033801a0052150858778HRESULTThe specified class does not exist in the given namespace. ' "

Upon looking into the Hyper-v 2012 r2 server event logs, I found that this is going on

[ Source: WMI-Activity

Event ID: 5898
Microsoft-Windows-WMI-Activity/Operational ]

Id = {62D480B2-58EF-0000-E580-D462EF58CF01}; ClientMachine =

VIKHYPERV; User = VIKHYPERV\Administrator; ClientProcessId = 884;
Component = Unknown; Operation = Start IWbemServices::ExecQuery -

root\virtualization : select * from Msvm_ComputerSystem where
Description = "Microsoft Hosting Computer System" ; ResultCode =

0x80041010; PossibleCause = Unknown

Note that Msvm_ComputerSystem is missing in the namespace root\virtualization. Upon further investigation, I found that the new namespace where Msvm_ComputerSystem is located is at root\virtualization\v2

Is (it possible?) there some way I can know where in the source code, libvirt is specifying the namespace so that I can try patching it up and see if it fixes things?

Thanks for all your help,
Vik.

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