From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Jones <drjones@redhat.com>
Subject: Re: v4.9-rc1 fails booting as a guest on ARM64 Cavium ThunderX
Date: Fri, 21 Oct 2016 14:07:32 +0200
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Cc: Auger Eric <eric.auger@redhat.com>,
        Daniel Thompson <daniel.thompson@linaro.org>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Robert Richter <robert.richter@caviumnetworks.com>,
        "kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>
To: Peter Maydell <peter.maydell@linaro.org>
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On Fri, Oct 21, 2016 at 12:57:37PM +0100, Peter Maydell wrote:
> On 21 October 2016 at 12:49, Andrew Jones <drjones@redhat.com> wrote:
> > I also read the register before writing it and saw it was 3. I tried
> > writing 3 instead of 0 to see what would happen, but the failure
> > persisted. I did read back the register after writing it to confirm the
> > change took affect.
> 
> So what does it read back as after you write 0? The GICv3 spec
> says it can't read back as zero...
>

I read back zero

pre-read  bpr1=3
post-read bpr1=0
FAIL: gicv3: ipi: self: Timed-out (5s). ACKS: missing=1 extra=0 unexpected=0

Thanks,
drew