Re: [Xen-users] compiling an old XEN version

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2012-08-28 at 09:51 +0100, Ian Campbell wrote:
> On Mon, 2012-08-27 at 12:27 +0100, maheen butt wrote:
> > On Thu, Aug 9, 2012 at 12:49 PM, maheen butt <maheen_butt26@xxxxxxxxx> 
> > wrote:
> > > hi all,
> > > I want to use Xenlinux and an old version of Xen hypervisor xen 3.2.0.
> > 
> > My first question would be "why"?
> > 
> > For MS thesis I'm considering Xen to port it for MIPS. as there is no 
> > PV_ops 
> > support available in case of MIPS so I'm forced to use old versions of Xen
> 
> pvops is an internal implementation detail of the upstream Linux x86
> port to Xen. It has absolutely no bearing on which version of Xen you
> run and it isn't really relevant for anything other than x86 unless you
> intend to replicate that infrastructure on MIPS.
> 
> There is also no particular link between Xen and the dom0/domU kernel (this
> is the reason Xen stopped shipping a patched kernel tree). If you are
> working on a new port then I would strongly suggest that you use
> xen-unstable and upstream Linux kernel as your starting point. You will
> find there is very little interest in the developer community in
> supporting a port to anything older.

Also you should discuss this on xen-devel to avoid duplicating work with
others. I'm aware of at least one previous port to the MIPS architecture
although it was some time ago and I've not seen any code posted
upstream.

Ian.


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