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Re: [Qemu-devel] [PATCH RFC V5 1/9] hw/intc: Implement GIC-500 support f
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From: |
Pavel Fedin |
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Subject: |
Re: [Qemu-devel] [PATCH RFC V5 1/9] hw/intc: Implement GIC-500 support files |
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Date: |
Wed, 21 Oct 2015 15:32:03 +0300 |
Hello!
>> See this:
>> http://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg02349.html. This
>> is also a part of my live migration RFC.
>> I remember that Peter told long time ago that "it should really be a
>> property", when i integrated full affinity support. But, he currently
>> refused to accept this small standalone patch because there are no users for
>> now. My GICv3 live migration is waiting for kernel API to be
>> ready. And kernel API is waiting for kernel 4.5 development cycle to begin.
> So please resubmit it and mention me as a client.
Ok, i'll PING, but you can also include it into your patchset. BTW, why is it
still RFC?
> But I wonder if accessing the property in real time (not in only in
> initialization) from the GIC code will have impact on performance.
It can, but you can cache them during realize. For example, if you accept my
data layout, then you can just add "uint64_t mp_affinity" to GICv3CPUState.
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia