NetBSD 5.1 with XEN3.3 - ACPI powerdown

To: port-xen%NetBSD.org@localhost
Subject: NetBSD 5.1 with XEN3.3 - ACPI powerdown
From: Philip Jensen <philiprjensen%gmail.com@localhost>
Date: Wed, 16 Feb 2011 17:28:18 +1300

Hi All

I have just installed NetBSD v5.1 x386 with the XEN-PAE 3.3 kernel and
the NetBSD-DOM0 kernel.

When I do a shutdown -p now from DOM0, NetBSD shuts down (and I
presume hands over control to the XEN kernel), but the machine has not
powered off.

When I boot a standard NetBSD GENERIC kernel, shutdown -p now
correctly shuts down and powers off the machine.

Is this expected behaviour?  Can I get XEN to understand ACPI related
behaviour (e.g. power system down, manage CPU temperature and control
fan speed, etc.)?

thanks
- philj

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