Re: [PATCH 0 of 5] PV on HVM Xen

[Sheng Yang <sheng@linux.intel.com>]

On Thursday 18 March 2010 00:13:00 Jeremy Fitzhardinge wrote:
> On 03/17/2010 08:21 AM, Stefano Stabellini wrote:
> > As pointed out before by Jeremy and Konrad, the best starting point is
> > probably Konrad's pv/pcifront-2.6.31 tree: it contains most of the pirq
> > stuff, ready to be upstreamed.
> > AFAICT the only things required to make pirq mappings work (as in
> > my series) that are missing are:
> >
> > - xen_register_gsi
> >
> > - xen_setup_pirqs
> >
> > - the xen_register_gsi hook in acpi_register_gsi
> >
> > the first two should be easy to port because they don't require any
> > change but the last one definitely needs modifications in order to be
> > accepted upstream.
> 
> Have a look at 108bfa4b9029bd0f9775319900f82eb9749f5954 and
> 78c07daac0d9e267b5c23a3e9fbd3c7697f4ef44 in
> xen/dom0/"new"-interrupt-routing.  I think this will be a plausible
> thing to upstream.

Would look into it.
> 
> > I didn't include MSI support because is not required, but that is
> > another area that needs changes.
> 
> Xiantao has some interesting ideas for this.
> 
Xiantao and I have discussed on this for a month... Basically we have got two 
approaches now, but we can't reach an agreement... I would work on it after 
current hybrid thing settled down. Of course, we want MSI support benefit  
pv_ops dom0 as well as hybrid.

-- 
regards
Yang, Sheng