Xen devel - Aug 2012 - Debian squeeze as Dom 0?

Hi,
I''m going through the experience of learning XEN. My intentions are to
track down changes (at source code level) required to make a kernel into dom 0
kernel (if we consider that particular kernel is earlier than 2.6.18). while
going through Xen wiki I have a confusion in my mind.
Debian squeeze 6.0 is said to be Dom 0 kernel. Debian squeeze is using 2.6.32
linux kernel and once we install Debian we have to install Xen packages 
in which Xen enabled Linux kernel is also included. Then why we consider Debian
squeeze as Dom 0 kernel because of its readily available packages?
it is also stated that Dom 0 support was added since 2.6.37 and if we have a
distribution having kernel 3.0 we just need to install hypervisor.  then why we
call 
Debian squeeze a Dom 0 kernel though it is using 2.6.32 kernel?

Thanks in advance
maheen

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On Fri, 2012-08-03 at 06:34 +0100, maheen butt wrote:
> Hi,
> I''m going through the experience of learning XEN. My intentions
are to
> track down changes (at source code level) required to make a kernel
> into dom 0
> kernel (if we consider that particular kernel is earlier than 2.6.18).
> while going through Xen wiki I have a confusion in my mind.
> Debian squeeze 6.0 is said to be Dom 0 kernel. Debian squeeze is using
> 2.6.32 linux kernel and once we install Debian we have to install Xen
> packages 
> in which Xen enabled Linux kernel is also included. Then why we
> consider Debian squeeze as Dom 0 kernel because of its readily
> available packages?
> it is also stated that Dom 0 support was added since 2.6.37 and if we
> have a distribution having kernel 3.0 we just need to install
> hypervisor.  then why we call 
> Debian squeeze a Dom 0 kernel though it is using 2.6.32 kernel?
The Squeeze kernel''s xen flavour is based on the old out of tree 2.6.32
pvops xen.git tree.

Ian.