Re: [Xen-devel] another xend race: qemu-dm versus device hotplug

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

On Fri, Jul 25, 2008 at 02:26:07PM +0100, Ian Jackson wrote:

> Perhaps xend could advertise in xenstore somehow that the new approach
> was going to work ?

The simplest solution is to write device-status as "connecting" before
starting the device model, then make it be "connected" when done.

If qemu-dm doesn't see device-status at all, it merrily marches on (with
a warning, I think). Otherwise it waits to see "connected".

BTW I noticed that the tpm code has tried to fix this problem on its
own. I think that can all be ripped out.

regards
john

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