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...pausing to VCPUOP_initialize. The separation allows for build-time allocation of vcpus which becomes more important when trying to allocate memory in a NUMA-aware manner (i.e. knowing which physical cpus are being used in a domain before we allocate the memory). The second patch adds a new domain allocmap cpumap_t which is a bitmap of physical cpus from which vcpus are to be allocated. As vcpus are created, the selection of which physical cpu is balanced across the set of physical cpus within the map. The patch lets us control vcpu allocation at a high level (start all VCPUS on hyperthreads, NODE1...