vm_get_stat
stats->pages_4k = vm_get_stat(vm, pages_4k);
stats->pages_2m = vm_get_stat(vm, pages_2m);
stats->pages_1g = vm_get_stat(vm, pages_1g);
actual_pages_2m = vm_get_stat(vm, pages_2m);
actual_splits = vm_get_stat(vm, nx_lpage_splits);