[libvirt] understanding managedsave
Hi,
I'm trying to understand how the managedsave and restoration features
work at the libvirt/qemu level.
I'd like to write a little python script to reproduce the feature to
learn how it works. So, I start a kvm guest by hand with
qemu-kvm [...] -qmp tcp:localhost:4444,server
and connect to the QMP with telnet or the qemu qmp-shell for my tests.
From what I've read, libvirt internally does a migration to a
file:
qemuDomainSaveMemory() -> qemuMonitorToFile() ->
qemuMonitorMigrateToFd().
Why do a migration instead of QMP stop/memsave?
What whould be the whole QMP/Monitor sequence of commands to handle the
process?
--
Nicolas Sebrecht