[libvirt] Fix qemudParseVMDeviceDef() to check for proper network device tag name

[Daniel Veillard]

On Thu, Jun 12, 2008 at 09:22:20AM -0700, Kaitlin Rupert wrote:
> Is it too late to get this change in?

  Sorry, off by a couple of hours !

> Instead of "net", the tag name should be "interface".  Previously, 
> attempting to attach a network device to a KVM guest would return:
> 
> libvir: QEMU error : XML description for unknown device type is not well 
> formed or invalid
> error: Failed to attach device from attach-disk.xml
> 
> With this fix, it returns:
> 
> libvir: QEMU error test_domain: this function is not supported by the 
> hypervisor: only CDROM disk devices can be attached
> libvir: QEMU error : this function is not supported by the hypervisor: 
> only CDROM disk devices can be attached
> error: Failed to attach device from attach-disk.xml

  Hum, right a network device description uses "interface", not "net"
that's clear from both the doc and qemudParseXML(), so applied and 
commited, but infortunately it didn't made into 0.4.3 :-\

  thanks !

Daniel

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