---
title: "hv_gic_set_distributor_reg(_:_:)"
framework: Hypervisor
role: symbol
role_heading: Function
platforms: [macOS 15.0+]
path: "hypervisor/hv_gic_set_distributor_reg(_:_:)"
---

# hv_gic_set_distributor_reg(_:_:)

Writes the provided value to a generic interrupt controller (GIC) distributor register you specify.

## Declaration

```swift
func hv_gic_set_distributor_reg(_ reg: hv_gic_distributor_reg_t, _ value: UInt64) -> hv_return_t
```

## Parameters

- `reg`: The enumeration value that represents the distributor register.
- `value`: The distributor register value to be write.

## Return Value

Return Value HV_SUCCESS on success; otherwise, an error code.

## Discussion

Discussion GIC distributor register enumeration values are equal to the device register offsets that the ARM GIC v3 specification defines. Alternatively, the client can use the offset while looping through large register arrays.

## See Also

### Getting and setting registers

- [hv_gic_get_distributor_reg(_:_:)](hypervisor/hv_gic_get_distributor_reg(_:_:).md)
- [hv_gic_get_msi_reg(_:_:)](hypervisor/hv_gic_get_msi_reg(_:_:).md)
- [hv_gic_get_icc_reg(_:_:_:)](hypervisor/hv_gic_get_icc_reg(_:_:_:).md)
- [hv_gic_get_ich_reg(_:_:_:)](hypervisor/hv_gic_get_ich_reg(_:_:_:).md)
- [hv_gic_get_icv_reg(_:_:_:)](hypervisor/hv_gic_get_icv_reg(_:_:_:).md)
- [hv_gic_get_redistributor_reg(_:_:_:)](hypervisor/hv_gic_get_redistributor_reg(_:_:_:).md)
- [hv_gic_set_icc_reg(_:_:_:)](hypervisor/hv_gic_set_icc_reg(_:_:_:).md)
- [hv_gic_set_ich_reg(_:_:_:)](hypervisor/hv_gic_set_ich_reg(_:_:_:).md)
- [hv_gic_set_icv_reg(_:_:_:)](hypervisor/hv_gic_set_icv_reg(_:_:_:).md)
- [hv_gic_set_msi_reg(_:_:)](hypervisor/hv_gic_set_msi_reg(_:_:).md)
- [hv_gic_set_redistributor_reg(_:_:_:)](hypervisor/hv_gic_set_redistributor_reg(_:_:_:).md)