Re: [libvirt] [RFC PATCH 0/4] Implementation of a dependency relation between domains

This patch series adds a feature that enables libvirt domains to have other domains as dependencies. One possible target is the simulation of a complex computing system composed of multiple CPUs, each of which represented by a different libvirt domain. CPUs in this example are virtualized separately, by a dedicated QEMU instance, because all of them are booting independently. Moreover, if those CPU must share some physical property (for example power supply or ACPI), it is meaningful to consider them as a group. Another possible target is Asymmetric Multi Processor (AMP) systems. Where a master processor uses one or more slave processors to offload computation. Master and slave have often different architectures. This patch series makes possible to define the slave domains as dependencies of the master domain. And the whole system to be booted with one single libvirt command. A use-case for this libvirt extension are the recent patch series in QEMU that enable modeling an AMP-like system with multiple QEMU instances.