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Date: Wed, 28 Sep 2016 11:04:10 +0800
From: Peter Xu <peterx@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] pci-testdev: enhance to support new
 testcases
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>, qemu-devel@nongnu.org, marcel@redhat.com

On Tue, Sep 27, 2016 at 06:13:29AM -0400, Paolo Bonzini wrote:
> 
> > Take my example: IOMMU unit test would want the guest to send DMA/IRQ
> > request from the device's perspective. In that case, we would like to
> > "tell" the pci-testdev about where to write the DMA, and what data to
> > write specifically, or which IRQ to trigger. That's something we
> > cannot do right now. And I don't want to just add a new test case for
> > that specifically. I think we can make it more common.
> 
> Do we need to use the pci-testdev?  There's also for example
> the edu device, or we could just use virtio-serial with a null
> backend.

It's interesting to know that there is such an edu device. So it not
only suits for education, but tailored for IOMMU unit test as well. :)

-- peterx