[please don't top-post on technical lists] On 08/03/2012 09:02 AM, Harish Patil wrote:
Thanks Michal. Yes I do not have a screen, the host and the guests are running on an embedded device. The real requirement is: Is there a way that I can register with libvirt for the state change notifications in the guest OS? Is it possible? I need to take some actions in the host based on the guest OS state change.
How would you do this in a network of bare metal machines? You may be better served by setting up actions based on network messages sent by the guest, the way you would with one bare-metal machine reporting to another. Also, this sounds more like something that a guest agent would have to coordinate at a higher level than libvirt, as there is nothing inherent in running qemu that tells libvirt what the guest inside the qemu process is doing. virt-dmesg' ability to peek at guest memory is about the best you will be able to do through libvirt.
-- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org