Problem with auto-detecting a HV environment from within Linux

Haiyang Zhang haiyangz at
Fri Feb 26 19:07:14 UTC 2010

> From: Greg KH [mailto:greg at]
> Sent: Thursday, February 25, 2010 9:57 PM
> In looking at the second patch again, I think you will need to put some
> spaces in the DMI strings to get it to match up properly.  Look at what
> the files in:
> 	/sys/class/dmi/id/
> look like exactly to get it to line up.  The module id stuff strips
> spaces out, so I can't get the real value there.

Thanks for your help! I have applied the two patches -- auto loading of hv_vmbus works fine after a space was inserted into the DMI strings ("Microsoft Corporation", "Virtual Machine").

Also, according to our Hyper-V team, we have no plan to change the virtual VGA card id and DMI info.


- Haiyang

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