vm_copyin
vm_copyin(iov, desc, sizeof(*desc));
vm_copyin(nt_iov, &newtss, minlimit + 1);
vm_copyin(ot_iov, &oldtss, minlimit + 1);
void vm_copyin(struct iovec *guest_iov, void *host_dst, size_t len);
void vm_copyin(struct vm *vm, int vcpuid, struct vm_copyinfo *copyinfo,
vm_copyin(vm, vcpuid, copyinfo, &val, opsize);
vm_copyin(vm, vcpuid, copyinfo, &val, size);
vm_copyin(vm, vcpuid, copyinfo, &vie->inout.eax, bytes);
vm_copyin(vm, vcpuid, copyinfo, vie->inst, VIE_INST_SIZE);