Re: [Qemu-devel] [PATCH 10/10] TCP based live migration

[Anthony Liguori]

Blue Swirl wrote:
> On 9/9/08, Anthony Liguori <address@hidden> wrote:
>   
> > This patch introduces a tcp protocol for live migration.  It can be used as
> >  follows:
> >
> >  qemu-system-x86_64 -hda ~/images/linux-test.img -monitor stdio
> >   <vm runs for a while>
> >  (qemu) migrate tcp:localhost:1025
> >
> >  On the same system:
> >
> >  qemu-system-x86_64 -hda ~/images/linux-test.img -incoming tcp:localhost:1025
> >
> >  The monitor can be interacted with while waiting for an incoming live 
> > migration.
> >     
>
> With command line switches, you have to know when starting the VM that
> it is going to accept an incoming migration. Would it be possible to
> change this so that the incoming migration could be triggered from
> monitor? For example to migrate back to original host?
>   

Yup.  The main reason for an -incoming flag is it makes the ssh: 
protocol easier to implement (not included here).

I'll add a monitor command too.

Regards,

Anthony Liguori