can cgroup(cpu,mem) limit qemu and obtain right usage

["longguang.yue" <libvirt@xxxxxxx>]

Hi, all:

    kata runs qemu as a kubernetes pod and use cgroup to limit cpu/memory. 

my question are :

      1. how libvirt obtain qemu's cpu and memory usage， how about non-root mode cpu usage?

      2. if qemu is limited in cgroups , does that usage include  non-root mode cpu usage?  

thanks