pin_map_page
map->page = pin_map_page(kvm, host_addr, FOLL_LONGTERM);
map->page = pin_map_page(kvm, host_addr, 0);
ind_page = pin_map_page(kvm, adapter_int->ind_addr, 0);
summary_page = pin_map_page(kvm, adapter_int->summary_addr, 0);