From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julien Grall <julien.grall@linaro.org>
Subject: Re: [PATCH 07/10] xen/arm: Force domains to use normal
 GICv2 driver on Hip04 platform
Date: Mon, 03 Nov 2014 14:16:42 +0000
Message-ID: <54578E4A.4020907@linaro.org>
References: <1415009522-6344-1-git-send-email-frediano.ziglio@huawei.com>
	<1415009522-6344-8-git-send-email-frediano.ziglio@huawei.com>
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To: Frediano Ziglio <frediano.ziglio@huawei.com>, Ian Campbell <ian.campbell@citrix.com>, Stefano Stabellini <stefano.stabellini@citrix.com>, Tim Deegan <tim@xen.org>
Cc: zoltan.kiss@huawei.com, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

Hi Frediano,

FYI, this is only force DOM0 to use the normal GICv2 drivers.

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 10:11 AM, 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 e7bf331..d92e2c0 100644
> --- a/xen/arch/arm/gic-v2.c
> +++ b/xen/arch/arm/gic-v2.c
> @@ -641,6 +641,12 @@ static int gicv2_make_dt_node(const struct domain *d,
>          return -FDT_ERR_XEN(ENOENT);
>      }
>  
> +    if ( platform_has_quirk(PLATFORM_QUIRK_GICV2_16_CPU) )
> +    {
> +        compatible = DT_COMPAT_GIC_CORTEX_A15;
> +        len = strlen((char*) compatible) + 1;
> +    }
> +
>      res = fdt_begin_node(fdt, "interrupt-controller");
>      if ( res )
>          return res;
> 


-- 
Julien Grall