Re: [libvirt-users] Can a VM tell what host it's on?
On 02/02/2012 11:33 AM, Whit Blauvelt wrote:
Is there a way internal to a KVM VM to know which host it's
running on?
No. The ideal hypervisor is one where the guest doesn't even know it is
running as a virtual machine. And consider live migration - a guest
might not be running on the same host over its lifetime. Therefore,
there should be nothing that requires a guest to know which host it is
running on.
It could send a command via ssh to virsh on a host, and learn from that
whether the host currently has it running. But is there something within the
VM itself which will reveal this?
Why do you think you need it? Perhaps if you ask a better question
about what you are really trying to solve, we can give a better answer.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
Attachments:
- signature.asc (application/pgp-signature — 620 bytes)