---
title: hv_ion_flags_t
framework: Hypervisor
role: symbol
role_heading: Type Alias
path: hypervisor/hv_ion_flags_t
---

# hv_ion_flags_t

The bitfield that you use to set the options flags for the I/O notifier.

## Declaration

```swift
typealias hv_ion_flags_t = UInt32
```

## See Also

### I/O notifier functions

- [hv_vm_add_pio_notifier(_:_:_:_:_:)](hypervisor/hv_vm_add_pio_notifier(_:_:_:_:_:).md)
- [hv_vm_remove_pio_notifier(_:_:_:_:_:)](hypervisor/hv_vm_remove_pio_notifier(_:_:_:_:_:).md)
- [hv_ion_message_t](hypervisor/hv_ion_message_t.md)
- [I/O Notifier Flags](hypervisor/3727903-i-o-notifier-flags.md)