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Re: [Xen-devel] [patch]Add a new reboot method

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] [patch]Add a new reboot method
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 29 May 2008 13:35:25 +0100
Cc: Huacai Chen <huacai.chen@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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On 29/5/08 13:18, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>> Which takes us back to ACPI. If 0xcf9 is the correct process the ACPI
>> method should use it.
> 
> One issue here is that Xen itself does not support the ACPI reboot method.
> It would be easy for Xen to do so since the reset register is probed via a
> fixed entry in the FADT. I would very much like a patch to add support for
> this -- far more than this 0xcf9 hack!

Actually it looks like Linux does not support ACPI reboot either.
acpi_reboot() in the kernel is a no-op isn't it?

Perhaps supporting it does more harm than good for compatibility?

 -- Keir



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