Re: [Qemu-devel] [PATCH][RESEND] Add monitor command for system_reboot

[Daniel P. Berrange]

On Wed, Jul 08, 2009 at 08:47:19AM -0500, Anthony Liguori wrote:
> Daniel P. Berrange wrote:
> >
> >Only other option I think of is a pure paravirt shutdown/reboot
> >handler, ala Xen. That sucks in different ways though, namely
> >needing a driver in the guest, which is probably worse.
> >  
> 
> What do you think about Avi's suggestion of using -no-shutdown, doing a 
> system_powerdown, waiting to receive a powerdown (you can poll 'info 
> status' too to see when you entered into the paused state), and then 
> doing a system_reset?  I'd suggesting doing a timeout too while waiting 
> to avoid waiting forever.

That suffers from the same problem as a system_reboot command in that
the guest may never start the shutdown. If that's an acceptable 
limitation, then we might as well implement it directly in QEMU as
system_reboot so its easily available to everyone. Make 'system_reboot'
take an optional timeout arg (default to 60 seconds) after which it
cancels its plans. 

Regards,
Dainel
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