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Date: Wed, 10 Dec 2014 14:10:06 +0100
From: Andrew Jones <drjones@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v2] arm: add fw_cfg to "virt" board
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, "Richard W.M. Jones" <rjones@redhat.com>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, QEMU Developers <qemu-devel@nongnu.org>, Alexander Graf <agraf@suse.de>, Gerd Hoffmann <kraxel@redhat.com>, Laszlo Ersek <lersek@redhat.com>, Christoffer Dall <christoffer.dall@linaro.org>

On Wed, Dec 10, 2014 at 12:13:34PM +0100, Paolo Bonzini wrote:
> On 09/12/2014 16:54, Richard W.M. Jones wrote:
> > On a slightly related topic, virtio-mmio traps are slow:
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=1123555
> 
> I suspect it's not virtio-mmio, but just KVM on ARM.
> 
> It would be nice to have a timing test for vmexits in kvm-unit-tests,
> similar to what is already there for x86.
> 

Christoffer had some for his initial kernel selftests, and at one
point he was porting them to an early version of kvm-unit-tests/arm.
We can resurrect that shortly, as I'll be posting kvm-unit-tests/arm64
today.

drew