PROT
VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, IPV4, PROT);
VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, IPV6, PROT);
void *value1 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);
void *value2 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);