Re: [Xen-devel] Re: Summary of Xen/pv_ops changes/additions in upcoming Linux 2.6.28?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Nov 26, 2008 at 12:59:49PM +0000, Ian Campbell wrote:
> On Wed, 2008-11-26 at 13:51 +0100, Ferenc Wagner wrote:
> > Pasi Kärkkäinen <pasik@xxxxxx> writes:
> > 
> > > On Wed, Nov 26, 2008 at 11:11:07AM +0100, Ferenc Wagner wrote:
> > >> Pasi Kärkkäinen <pasik@xxxxxx> writes:
> > >> 
> > >>> http://wiki.xensource.com/xenwiki/XenParavirtOps
> > >> 
> > >> It says:
> > >> 
> > >> Xen/paravirt_ops has been in mainline Linux since 2.6.23, though it is
> > >> probably first usable in 2.6.24. While I wouldn't put it in production
> > >> just yet, for normal desktop/developer workloads it has proven to be
> > >> pretty stable.
> > >> 
> > >> Is this statement still well founded?
> > >
> > > Yeah, I guess that should be modified.. suggestions? 
> > >
> > > pv_ops based domU kernels are shipping at least in Fedora 9 and Fedora 
> > > 10.. 
> > > how about other distributions? 
> > 
> > Debian Lenny will ship 2.6.26 kernel with save/restore/migration
> > patches backported from 2.6.27.  That also works OK.  I use the
> > 686-bigmem flavour only, but others successully run the 64 bit version
> > AFAIK.
> 
> Unfortunately There's no 64 bit version of the domU pvops kernel in
> Lenny. 64 bit domU first appeared in 2.6.27, I think, and the backport
> was too involved for me to consider.
> 
> What Lenny will have is a kernel with the SUSE forward ported non-pvops
> patch for 32+64 dom0 and 64 domU support (the -{686,amd64}-xen
> packages), in addition to the -686-bigmem pvops kernel for 32 bit domU.
> 

Uhm.. did I get it correctly?:

-686-bigmem (PAE) is the pv_ops 32 bit domU kernel.
-686-xen is the non-pv_ops (Suse patched) dom0/domU kernel
-amd64-xen is the non-pv_ops (Suse patched) dom0/domU kernel

-- Pasi

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