# hv_vcpu_get_vtimer_offset(_:_:) Returns the vTimer offset for the vCPU ID you specify. ``` func hv_vcpu_get_vtimer_offset(_ vcpu: hv_vcpu_t, _ vtimer_offset: UnsafeMutablePointer) -> hv_return_t ``` ## Parameters `vcpu` The ID of the vCPU instance. `vtimer_offset` A pointer to vTimer offset; the Hypervisor writes to this value on success. ## Return Value `0` on success, or an error code of the type [`hv_return_t`](/documentation/Hypervisor/hv_return_t). ## Discussion This corresponds to the value of the `CNTVOFF_EL2` register. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)