kvm_nch_cpuagg
void kvm_nch_cpuagg (struct nchstats *, struct nchstats *, int);
kvm_nch_cpuagg(nch, &total, ncpus);
kvm_nch_cpuagg(nch_tmp, &ls->nchstats, ncpu);
kvm_nch_cpuagg(nch_tmp, &nchstats, cpucnt);