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xen-devel
Re: [Xen-devel] [RFC][PATCH] allow dom0 to power off machine using ACPI
On Thu, Apr 06, 2006 at 07:36:10PM +0100, Harry Butterworth wrote:
> This is an evil little patch which allows my dom0 to power off the
> machine on shutdown successfully and doesn't break my domU shutdown
> behaviour.
>
> The #if bits are ugly and are present because pm_power_off is declared
> above in the same #if context, maybe they are not necessary. I'm not
> sure about the solution for ia64.
>
> This powers down the machine without bothering to tell the
> hypervisor.
I wonder why we go to the hypervisor for shutdown at the moment. I
don't see anything interesting being done for x86, and we could always
have dom0 notifying Xen that it's going to shut down, and then
shutting down whe the hypercall return.
> I thought this kind of solution was better than trying to import a lot
> more ACPI cruft into Xen. Any thoughts?
I think you want kernel_power_off() here, which should do the right
thing for all architectures.
Cheers,
Muli
--
Muli Ben-Yehuda
http://www.mulix.org | http://mulix.livejournal.com/
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