Nowadays the only way to check how many VMs we are running on bhyve is
performe an ls(1) on '/dev/vmm/'. This patch adds a new command option
on bhyvectl.
root@pipoca:/ # bhyvectl --list
NAME MEM VCPU
fbsd 2147483648 4
fbsd2 2147483648 4
fbsd1 536870912 1
Also it is possible to search by name:
root@pipoca:/ # bhyvectl --list --vm=fbsd1
NAME MEM VCPU
fbsd1 536870912 1
NOTE: I have another patch that converts this output to libxo(3), however
I would like to do it in two steps. First add this feature and then
convert the entirely bhyvectl to libxo(3).