Thanks Konrad. I downloaded kernel code from  xen/next. I believe this requires 3.4.3 or 4.0.0 xen hypervisor code, I downloaded xen hypervisor from xenbits.xensource.com/xen-unstable.hg. For xcp dom0 all compilation happens in DDK and no make utility is available and as I understand I need to execute make install-* in dom0. For install-xen probably I can copy xen.gz into /boot and modify files to reflect that but I am not sure what's the needed to install tools and stubdom in xcp dom0?

make xen
make tools
make stubdom

make install-xen
make install-tools
make install-stubdom

Thanks

On Thu, Mar 18, 2010 at 9:26 AM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
On Thu, Mar 18, 2010 at 08:28:18AM -0700, Ritu kaur wrote:
> Thanks Ian for clarification on interrupt handling mechanism.
>
> Thanks Konrad. Should I use xen/next in dom0 or domU?

Both.