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Re: [Qemu-devel] [PATCH 4/4] s390x/pci: add iommu replay callback


From: Yi Min Zhao
Subject: Re: [Qemu-devel] [PATCH 4/4] s390x/pci: add iommu replay callback
Date: Tue, 29 Aug 2017 18:00:08 +0800
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:45.0) Gecko/20100101 Thunderbird/45.8.0



在 2017/8/29 下午5:57, Cornelia Huck 写道:
On Tue, 29 Aug 2017 17:51:43 +0800
Yi Min Zhao <address@hidden> wrote:

在 2017/8/29 下午5:33, Cornelia Huck 写道:
My question was whether virtio-pci works with your patches on top at
all - last time I checked on master, virtio-pci devices failed to
realize with a "msi-x is mandatory" message.

I tested. virtio-pci works fine. The message "msix is mandatory" means
we only support
msix interrupt. If virtio-pci device (like virtio-rng) doesn't support
msix, we don't allow it
to plug.
Ah, that's it (it's a bit strange that not all virtio-pci devices
support msi-x). I can add a virtio-net-pci device just fine.

(Maybe we can enhance the message so that it is clear that it refers to
that particular device?)
Hum, I think so. But it's not urgent. I could post another patch for message enhancement
after this series review. Do you agree?

I thinik this is not related to iommu replay.
This question was unrelated to this particular patch, more to the whole
series :)


Yup.




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