kern_pcid
u16 ret = kern_pcid(asid);
cr3 |= kern_pcid(asid);
invlpgb_flush_single_pcid_nosync(kern_pcid(asid));
invlpgb_flush_user_nr_nosync(kern_pcid(asid), addr, nr, pmd);
__set_bit(kern_pcid(asid),