virtio_rw64
vr->vr_hdr.sector = virtio_rw64(vsc, 0);
dwz->sector = virtio_rw64(vsc, blkno);
vr->vr_hdr.sector = virtio_rw64(vsc, 0);
vr->vr_hdr.sector = virtio_rw64(vsc,
vr->vr_hdr.sector = virtio_rw64(vsc,
vr->vr_hdr.sector = virtio_rw64(vsc, 0);
hdr->fence_id = virtio_rw64(vsc, ++sc->sc_fence_id);
resp_fence = virtio_rw64(vsc, resp->fence_id);
backing.entries[0].addr = virtio_rw64(vsc, dmamap->dm_segs[0].ds_addr);
tth.offset = virtio_rw64(vsc, (y * sc->sc_fb_width + x) *
req->id = virtio_rw64(vsc, slot);
vd->addr = virtio_rw64(sc, addr);
vds[s].addr = virtio_rw64(sc, dmamap->dm_segs[i].ds_addr);
vds[s].addr = virtio_rw64(sc, dmamap->dm_segs[0].ds_addr + start);
uint64_t virtio_rw64(struct virtio_softc *sc, uint64_t val);