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Re: [Qemu-devel] [PATCH 1/3] qemu: add capability for vhost-net busy pol
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 1/3] qemu: add capability for vhost-net busy polling |
Date: |
Mon, 26 Jun 2017 07:23:50 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 |
On 06/17/2017 09:15 PM, Eduardo Habkost wrote:
> (CCing qemu-devel and the QAPI maintainers. I have a question
> about introspection below.)
>
>
> Fortunately, netdev options are modelled in the QAPI schema as
> union Netdev. However, 'query-qmp-schema' doesn't seem to
> include union Netdev because it is not referenced by any QMP
> command or event.
I've posted patches in the past (qemu 2.6 timeframe, if I recall) that
changed netdev_add into a fully-advertised interface, but we didn't take
it then because we weren't sure how to handle the fact that netdev_add
can currently accept both an integer (1) and a string ("1") as
identical, and we didn't want to risk breaking clients that passed a
string when the promoted command would only accept integers. I guess we
should revive that.
>
> Markus, Eric, Michael: is there any way libvirt can query the
> definition of union Netdev from the schema with current QEMU?
Really, we need to promote netdev_add to a full-fledged QMP command.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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