---
name: "acpihve"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/acpihve"
---

# acpihve(4)

Hyper-V entropy

## NAME

**acpihve** – Hyper-V entropy

## SYNOPSIS

**acpihve\* at acpi?**

## DESCRIPTION

Hyper-V hosts make entropy available to guests in the OEM0 ACPI table. The **acpihve** driver feeds this entropy into the kernel's entropy pool.

## SEE ALSO

[acpi(4)](/acpi/4.md), enqueue\_randomness(9)

## HISTORY

The **acpihve** driver first appeared in OpenBSD 6.1.