From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marc Zyngier <marc.zyngier@arm.com>
Subject: Re: [PATCH 3/3] KVM: arm: Enable vGICv2 software emulation
Date: Mon, 29 Jun 2015 13:48:54 +0100
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References: <cover.1435567226.git.p.fedin@samsung.com> <cc5767063bf07b484d0655280e007472c9ce599c.1435567226.git.p.fedin@samsung.com> <55913758.4020805@arm.com> <050501d0b268$56097e30$021c7a90$@samsung.com>
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Cc: 'Christoffer Dall' <christoffer.dall@linaro.org>,
	Andre Przywara <Andre.Przywara@arm.com>
To: Pavel Fedin <p.fedin@samsung.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>
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On 29/06/15 13:37, Pavel Fedin wrote:
>  Hello!
> 
>> Hold on a second. In your cover letter, your saying "RPi-2". The RPi-2
>> doesn't have a GIC at all, so I'd really like to know *how* you end-up
>> in the GICv2 probe function?
> 
> I'm not on RPi-2. I am on some Samsung's proprietary hardware which
> suffers from this problem. Actually it has "weird GIC", similar to
> Exynos-4 (every CPU accesses GIC at its own base), thus hardware vGIC
> is unusable.

Well, I'm sorry you have to work with such broken designs, but this is
simply not suitable for KVM. The Franken-GIC has caused us a lot of pain
in the past, and papering over it only gives people an incentive to push
for more broken HW.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...