On Tue, Dec 31, 2019 at 08:00:17AM -0700, Tamas K Lengyel wrote:
> On Tue, Dec 31, 2019 at 3:40 AM Roger Pau Monné <roger....@citrix.com> wrote:
> >
> > On Mon, Dec 30, 2019 at 05:37:38PM -0700, Tamas K Lengyel wrote:
> > > On Mon, Dec 30, 2019 at 5:20 PM Julien Grall <julien.gr...@gmail.com> 
> > > wrote:
> > > >
> > > > Hi,
> > > >
> > > > On Mon, 30 Dec 2019, 20:49 Tamas K Lengyel, <ta...@tklengyel.com> wrote:
> > > >>
> > > >> On Mon, Dec 30, 2019 at 11:43 AM Julien Grall <jul...@xen.org> wrote:
> > > >> But keep in mind that the "fork-vm" command even with this update
> > > >> would still not produce for you a "fully functional" VM on its own.
> > > >> The user still has to produce a new VM config file, create the new
> > > >> disk, save the QEMU state, etc.
> >
> > IMO the default behavior of the fork command should be to leave the
> > original VM paused, so that you can continue using the same disk and
> > network config in the fork and you won't need to pass a new config
> > file.
> >
> > As Julien already said, maybe I wasn't clear in my previous replies:
> > I'm not asking you to implement all this, it's fine if the
> > implementation of the fork-vm xl command requires you to pass certain
> > options, and that the default behavior is not implemented.
> >
> > We need an interface that's sane, and that's designed to be easy and
> > comprehensive to use, not an interface built around what's currently
> > implemented.
> 
> OK, so I think that would look like "xl fork-vm <parent_domid>" with
> additional options for things like name, disk, vlan, or a completely
> new config, all of which are currently not implemented, + an
> additional option to not launch QEMU at all, which would be the only
> one currently working. Also keeping the separate "xl fork-launch-dm"
> as is. Is that what we are talking about?

I think fork-launch-vm should just be an option of fork-vm (ie:
--launch-dm-only or some such). I don't think there's a reason to have
a separate top-level command to just launch the device model.

Thanks, Roger.

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