Hello Marc,
2015-04-12 18:57 GMT+08:00 Marc Zyngier <marc.zyngier@xxxxxxx>:
> On 2015-04-12 07:40, Brent Wang wrote:
>>
>> Hello Mark,
>>
>> 2015-02-06 16:42 GMT+08:00 Brent Wang <wangbintian@xxxxxxxxx>:
>> [...]
>>>>
>>>>
>>>>> + gic: interrupt-controller@f6800000 {
>>>>> + compatible = "arm,gic-400", "arm,cortex-a15-gic";
>>>>
>>>>
>>>> Surely there's no need for the "arm,cortex-a15-gic" fallback entry? What
>>>> am I missing?
>>>
>>> Remove it in next version.
>>
>> After remove "arm,cortex-a15-gic", I get the following error during
>> kernel booting:
>> -----
>> kvm [1]: Using HYP init bounce page @396d9000
>> kvm [1]: error: no compatible GIC node found
>> kvm [1]: error initializing Hyp mode: -19
>> -----
>>
>> Check code "virt/kvm/arm/vgic.c", gicv2 only "cortex-a15-gic" and
>> gicv3 support kvm now,
>> so I think we should keep it, how about your idea?
>
>
> Please look at commit 0f37247574b3 that is queued for merge in 4.1.
> It adds the required compatibility strings to KVM, so Mark is perfectly
> right to ask you to drop this "cortex-a15-gic" from your DT.
Thanks for the information.
> This DT won't be merged before 4.1 anyway, so there is no point trying
> to make it work with older kernels.
>
> Thanks,
>
> M.
> --
> Fast, cheap, reliable. Pick two.
--
Best Regards,
Bintian
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