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Re: [Qemu-devel] [PATCH] virtio: Mark virtio-device as non-user-creatabl
From: |
Eduardo Habkost |
Subject: |
Re: [Qemu-devel] [PATCH] virtio: Mark virtio-device as non-user-creatable |
Date: |
Thu, 3 Aug 2017 11:45:08 -0300 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Wed, Aug 02, 2017 at 02:33:00PM +0200, Halil Pasic wrote:
>
>
> On 08/02/2017 01:01 AM, Eduardo Habkost wrote:
> > TYPE_VIRTIO_DEVICE devices are already not usable with -device
> > and device_add, but they are reported as user-creatable on
> > "-device help" and through monitor interfaces.
>
> I've tried -device virtio-rng on s390x and from what I see, it
> seems we 'auto-magically' create the 'controlling' virtio-rng-ccw
> device. So I have to ask what do you mean by 'already not usable'?
virtio-rng is just an alias for virtio-rng-<transport>, and it's
not a TYPE_VIRTIO_DEVICE device.
virtio-rng-device is the TYPE_VIRTIO_DEVICE subclass, and you
shouldn't be able to use "-device virtio-rng-device". Except
that it works with "qemu-system-arm -machine virt", as I noted on
another message, and this patch breaks it.
--
Eduardo