On Sat, 17 Mar 2007 00:01:21 +0100
Rhialto <rhialto@falu.nl> wrote:

> On Thu 15 Mar 2007 at 20:25:04 +0100, Manuel Bouyer wrote:
> > It does. But it's not the guest that is doing the work; the dom0
> > is. It's a lot like APM's suspend/resume to disk, where it's the
> > BIOS which is dumping/restoring the RAM content. Here we're talking
> > about the OS itself dumping/restoring its states, which makes it at
> > lot more difficult.
> 
> Well yes, but I was thinking to reduce the problem to a known solved
> one. Why not "simply" require Xen if you want suspend-to-disk? How
> much overhead is there if you only run 1 VM?
> 
The problem is that Xen doesn't support certain things, like power
management.  That makes it a non-starter for laptops.


		--Steve Bellovin, http://www.cs.columbia.edu/~smb