Re: [Xen-devel] suspend operation in XEND

[Mark Williamson <Mark.Williamson@xxxxxxxxxxxx>]

> During Save & Migration, XFRD sends "xfr.suspend" message to XEND.
> This results in XEND suspending the domainU. A part of the suspension
> should involve XEND sending DISCONNECT message to the front-end driver
> in domainU

I don't think you'll find it.  Migrations / suspensions are treated like a 
backend driver restart - at resume the frontend driver is notified that it 
needs to reconnect to the backend and is responsible for requeuing any 
pending requests.

Instead of explicitly disconnecting the domain at suspend, the frontend driver 
just sorts everything out at resume.

Cheers,
Mark

> I am trying to dig through the XEND python code & I am unable to find
> this information. Can someone help ??
>
> Also can someone guide me through the set of functions that are called
> by XEND as a part of suspend. What is the use of the the
> domain_restart_schedule() ??
>
> Thanks
>
> Nauzad
>
>
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