libvirt users - May 2021 - virHostdevIsPCINodeDeviceUsed

I am looking to be able to check if a specific PCI device is allocated to a
guest.

An error is produced if a domain is started and the device is in use within
another domain via this function.

I cannot see a publicly available function to use to get this information,
is there one available or is there another way to check the state of the
PCI device.

Regards
Simon
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On 5/17/21 8:36 PM, Simon Fairweather wrote:
> I am looking to be able to check if a specific PCI device is allocated to a
> guest.
> 
> An error is produced if a domain is started and the device is in use within
> another domain via this function.
> 
> I cannot see a publicly available function to use to get this information,
> is there one available or is there another way to check the state of the
> PCI device.
> 
Yeah, there's no public API. So far we recommended mgmt apps to track
the usage themselves, however I don't see why we shouldn't have a new
API, say:

int virNodeDeviceGetUsed(virNodeDevicePtr dev, char **drvname, char
**domname);

Can you please open a gitlab issue for this? Or, are you willing to
submit patches?

Michal