Re: [Xen-devel] Xen/Domain0 notification of a VM reboot

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

The hardware registers used to initiate a reboot are emulated by qemu which
usually runs as a process in dom0. When those registers get accessed to
trigger a reboot, qemu notifies Xen, which notifies the dom0 toolstack, and
then a decision can be made as to what to do (e.g., restart the VM, destroy
the VM, ...).

 -- Keir

On 01/11/2009 14:04, "Satish Sangapu" <xen.sks@xxxxxxxxx> wrote:

> Hello.
> 
> I have searched the internet/forums about this topic and I wasn't able to find
> any help so I thought I would ask here.
> 
> Suppose a HVM guest reboots within the virtual machine context - how can Xen
> or Domain0 know about this event?
> 
> 
> Thanks,
> xen.sks
> 



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