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

[Julien Grall <julien.grall@linaro.org>]

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,

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@huawei.com>
> ---
>  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