Re: Port DragonFly to Xen platform
On Mon, 29 Mar 2010, Freddie Cash wrote:
> PV DomU support is "fairly easy",
> Dom0 support is hard, and requires a lot of changes to the kernel, as you
> are essentially adding a whole new CPU architecture (Xen).
Well, I come from NetBSD, so I don't really see the problem with
doing that. Happens all the time. :-)
> In the long-run, a KVM-like system where the DFly kernel becomes the
> hypervisor and VMs run as user processes is better than the Xen split-dom,
> "we're our own architecture, but we fake it using a real kernel" stuff.
It's really two different things entirely. Seems to me that with KVM, it
is assumed that the host OS is given, and it provides a way to more easily
virtualize guests; Xen puts itself in the center, and instead treats hosts
and guests as exchangable. I like the idea that you can treat it as just
another hardware architecture.
But as has been said before, KVM could benefit vkernels, and any other
virtualization solution, so I can definitely see why that would be
attractive.
MAgnus
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