Re: [Xen-devel] [PATCH v2 6/7] xen/arm: Force domains to use normal GICv2 driver on Hip04 platform

[Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>]

> 
> Hi Frediano,
> 
> FYI, this is only force DOM0 to use the normal GICv2 drivers. I.e the
> title of this patch is wrong.
> 
> Do you have any plan to support hi-silicon vGIC in Xen? This would
> allow guest running with more than 8 cores.
> 
> Regards,
> 

Actually there's no plan to do it.

Frediano

> On 11/03/2014 04:46 PM, Frediano Ziglio wrote:
> > Until vGIC support is not implemented and tested, this will prevent
> > guest kernels to use their Hip04 driver, or crash when they don't
> have
> > any.
> >
> > Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
> > ---
> >  xen/arch/arm/gic-v2.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/xen/arch/arm/gic-v2.c b/xen/arch/arm/gic-v2.c index
> > 411b104..cea9edc 100644
> > --- a/xen/arch/arm/gic-v2.c
> > +++ b/xen/arch/arm/gic-v2.c
> > @@ -639,6 +639,12 @@ static int gicv2_make_dt_node(const struct
> domain *d,
> >          return -FDT_ERR_XEN(ENOENT);
> >      }
> >
> > +    if ( nr_gic_cpu_if == 16 )
> > +    {
> > +        compatible = DT_COMPAT_GIC_CORTEX_A15;
> > +        len = strlen((char*) compatible) + 1;
> > +    }
> > +
> >      res = fdt_begin_node(fdt, "interrupt-controller");
> >      if ( res )
> >          return res;
> >
> 
> 
> --
> Julien Grall

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