HN_CHIM_SIZE
pmap_kextract((vm_offset_t)sc->hn_chim), HN_CHIM_SIZE,
sc->hn_chim_cnt = HN_CHIM_SIZE / sc->hn_chim_szmax;
if (HN_CHIM_SIZE % sc->hn_chim_szmax != 0) {
sc->hn_chim = contigmalloc(HN_CHIM_SIZE, M_DEVBUF, M_WAITOK | M_ZERO,