I am trying to enable guest password reset for windows and linux guests. Is it possible to do it when the instance is running ?

I am using wallaby release. By searching, I have found that qemu-guest-agent is required to reset the password. But I didn't see the the image property for it. 

On other link I have found hw_qemu_guest_agent property for image this will help in this but looks too old and seems to be deprepacted.

My objective is to reset the linux and windows guest password or inject new key pair. Need your help, how to achieve it.

- Ammad