Use the virtual-cpu resource to set the number of kernel zone CPUs. The host CPUs dedicated to the kernel zone are defined by the ncpus value. The default kernel zone configuration has 1 CPU. You can add more CPUs to the kernel zone by adding the virtual-cpu property.
Note that if the dedicated-cpu resource is already defined, the default number of virtual CPUs configured in the virtual platform matches the lower value of the ncpus range in the dedicated-cpu resource. Setting both the dedicated-cpu and the virtual-cpu resources is not necessary.