vm_copyin
void vm_copyin(struct iovec *guest_iov, void *host_dst, size_t len);
void vm_copyin(struct vm_copyinfo *copyinfo, void *kaddr, size_t len);
vm_copyin(copyinfo, &rflags, sizeof(uint64_t));
vm_copyin(copyinfo, &val, size);
vm_copyin(copyinfo, vie->inst, inst_length);
vm_copyin(copyinfo, &val, opsize);
vm_copyin(iov, &val, bytes);
vm_copyin(iov, desc, sizeof(*desc));
vm_copyin(nt_iov, &newtss, minlimit + 1);
vm_copyin(ot_iov, &oldtss, minlimit + 1);