Re: [Xen-devel] [PATCH] add a command to get the state of VMs

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

James Song writes ("Re: [Xen-devel] [PATCH] add a command to get the state of 
VMs"):
> Sorry for replying late. By now, xl/libxl only contain part of
> function xm/xend. What the release date of 4.1 and would xl/libxl be
> enhanced in it?

We don't have a firm schedule for 4.1 but Keir will have a clearer
idea of the general plan.  Certainly libxl should be feature-complete
by then - indeed it very nearly is already.

Which functionality of xm that you use is currently missing from xl ?

NB that the "managed domains" facility in xend is not being replaced
directly with equivalent functionality in xl.  However, the
startup/shutdown scripts (which now work with xl as well as xm)
provide address many of the same needs.

> > So you may want to consider a migration path away from xend "managed
> > domains".  The xl toolstack supports the init.d-based machinery for
> > automatically saving and restoring domains on dom0 reboot;
> 
> Yeah, I could get the status of VMs from Hypervisor by hypercall. I
> would implement it in xl/libxl.

I'm not sure exactly what you mean.  "Managed domains" as provided by
xend are not always present in the hypervisor, so you can't query
their status by hypercall.  We do not intend to replicate this feature
directly in libxl.

I hope this is all helpful and informative.

Regards,
Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel