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ACPIHVE(4) Device Drivers Manual ACPIHVE(4)

acpihveHyper-V entropy

acpihve* at acpi?

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.

acpi(4), add_true_randomness(9)

The acpihve driver first appeared in OpenBSD 6.1.

January 10, 2017 OpenBSD-6.1