[libvirt-users] How does libvirt interaction with KVM to create a VM?

[Dennis Chen]

On 06/29/2012 08:50 PM, Eric Blake wrote:
> On 06/29/2012 02:12 AM, Dennis Chen wrote:
>
>> so the libvirtd daemon is there, but I have questions about this daemon:
>> 1. where is the daemon source code, it's in the libvirt tar package?
> Yes, libvirt is responsible for both libvirt.so (the client code
> [src/remote/*], which bundles the RPC request to send to libvirtd) and
> for libvirtd (the daemon code [daemon/*], which receives the RPC request
> and then calls into the qemu driver code [src/qemu/*] to act on the
> request).
>
>> 2. Who is responsible to start this daemon and when?
> If you use Fedora or RHEL, it is the installation of the 'libvirt'
> package that installs libvirtd as a service, and therefore the service
> mechanism (systemd or initd) that fires off libvirtd when you boot.
>
Eric, Thanks for the elaboration! It's very clear for me understanding 
the relationship of libvirtd and qemu driver and the qemu binary, also 
the internal mechanism...

BRs,
Dennis