docs: add acpi section to hyperkit docs
@@ -31,6 +31,12 @@ The HyperKit backend support configuring a persistent disk using the
standard `linuxkit` `-disk` syntax. Currently, only one disk is
supported and the disk is in raw format.
+## Power management
+
+HyperKit sends an ACPI power event when it receives SIGTERM to allow the VM to
+shut down properly. The VM has to be able to receive ACPI events to initiate the
+shutdown. This is provided by the [`acpid` package](../pkg/acpid). An example
+is available in the [Docker for Mac blueprint](../blueprints/docker-for-mac/base.yml).
## Networking
