Xen users - Feb 2012 - Mainline Kernel

Hi Everyone,

Now that Xen Dom0 kernel is in the mainline kernel at kernel.org for 
3.0+, does this mean that the concept of installing a "kernel-xen" 
package on a to-be hypervisor no longer exists, assuming that the to-be 
hypervisor is running a 3.0+ kernel?

Specifically, does this mean that for Ubuntu 11.10 (which uses a 3.x 
kernel by default), it can run as a Dom0 out of the box?

Also, does this mean that any updates for xen Dom0/DomU stuff comes just 
like any "normal" kernel update, since it''s mainline?

Thanks

On Wed, Feb 29, 2012 at 3:46 PM, Jonathan Tripathy <jonnyt@abpni.co.uk>
wrote:
>
> Hi Everyone,
>
> Now that Xen Dom0 kernel is in the mainline kernel at kernel.org for 3.0+,
> does this mean that the concept of installing a "kernel-xen"
package on a
> to-be hypervisor no longer exists, assuming that the to-be hypervisor is
> running a 3.0+ kernel?
It depends.

A distro MIGHT still want to have separate kernel-xen, which could
include (for example) some functionality not yet on upstream, like
blktap.
>
> Specifically, does this mean that for Ubuntu 11.10 (which uses a 3.x kernel
> by default), it can run as a Dom0 out of the box?
>
I don''t know, haven''t tried :)

I DO know that elrepo.org''s kernel-ml, as well as my own self-compiled
3.1 kernel (based on Fedora''s SRPM) works as both native and dom0
kernel, after editing grub config manually.
> Also, does this mean that any updates for xen Dom0/DomU stuff comes just
> like any "normal" kernel update, since it''s mainline?
For kernel-related stuff? Should be.

-- 
Fajar