void vhpt_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry)
{
region_register_t rr_save, rr;
size_t vrn;
rid_t rid;
uint64_t tag;
vhpt_entry_t *ventry;
vrn = va >> VRN_SHIFT;
rid = ASID2RID(asid, vrn);
rr_save.word = rr_read(vrn);
rr.word = rr_save.word;
rr.map.rid = rid;
rr_write(vrn, rr.word);
srlz_i();
ventry = (vhpt_entry_t *) thash(va);
tag = ttag(va);
rr_write(vrn, rr_save.word);
srlz_i();
srlz_d();
ventry->word[0] = entry.word[0];
ventry->word[1] = entry.word[1];
ventry->present.tag.tag_word = tag;
}
int
mdns_send(const struct mdns_ctx *ctx, const struct mdns_hdr *hdr, const struct rr_entry *entries)
{
uint8_t buf[MDNS_PKT_MAXSZ] = {0};
const struct rr_entry *entry = entries;
ssize_t n = 0, l, r;
if (!entries) return (MDNS_STDERR);
if ((l = mdns_write_hdr(buf, hdr)) < 0) {
return (MDNS_STDERR);
}
n += l;
for (entry = entries; entry; entry = entry->next) {
l = rr_write(buf+n, entry, (hdr->flags & FLAG_QR) > 0);
if (l < 0) {
return (MDNS_STDERR);
}
n += l;
}
r = sendto(ctx->sock, (const char *) buf, n, 0,
(const struct sockaddr *) &ctx->addr, ss_len(&ctx->addr));
return (r < 0 ? MDNS_NETERR : 0);
}
