From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ewan Mellor <ewan@xensource.com>
Subject: Re: Re: [Xen-changelog] Create new vcpu_op() hypercall.
	Replaces old boot_vcpu()
Date: Wed, 5 Oct 2005 10:28:48 +0100
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On Tue, Oct 04, 2005 at 04:17:44PM -0500, Ryan Harper wrote:

> The vcpu hotplug watch is triggered on any writes to /cpu.
> It will then examine the node value to see if the change was made to
> /cpu/cpu#/availability, (e.g. /cpu/1/availability), if the full path of
> the change is correct, it examines the change values which are either
> 'online' or 'offline' and invokes the vcpu_up/down handlers if the write
> is a state change.
> 
> I only ever see one trigger and the value is 'cpu' but I can confirm
> that tdb sees the full write ('/cpu/1/availabilty', 'offline').

Thanks Ryan, that's been very helpful.  This is now bug #280.

Cheers,

Ewan.