Hi On Mon, Nov 12, 2018 at 8:03 PM Daniel P. Berrangé <berrange@redhat.com> wrote:
On Wed, Nov 07, 2018 at 07:13:11PM +0400, Marc-André Lureau wrote:
As discussed during "[PATCH v4 00/29] vhost-user for input & GPU" review, let's define a common set of backend conventions to help with management layer implementation, and interoperability.
v2: - use a vhost-user.json schema to discover backends and describe capability format - drop --pidfile - add some notes about daemonizing & stdin/out/err
Cc: libvir-list@redhat.com Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Daniel P. Berrangé <berrange@redhat.com> Cc: Changpeng Liu <changpeng.liu@intel.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Felipe Franciosi <felipe@nutanix.com> Cc: Gonglei <arei.gonglei@huawei.com> Cc: Maxime Coquelin <maxime.coquelin@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Victor Kaplansky <victork@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> --- MAINTAINERS | 1 + docs/interop/vhost-user.json | 219 +++++++++++++++++++++++++++++++++++ docs/interop/vhost-user.txt | 101 +++++++++++++++- 3 files changed, 319 insertions(+), 2 deletions(-) create mode 100644 docs/interop/vhost-user.json
diff --git a/docs/interop/vhost-user.json b/docs/interop/vhost-user.json new file mode 100644 index 0000000000..91b5bf499e --- /dev/null +++ b/docs/interop/vhost-user.json @@ -0,0 +1,219 @@ +# -*- Mode: Python -*- +# +# Copyright (C) 2018 Red Hat, Inc. +# +# Authors: +# Marc-André Lureau <marcandre.lureau@redhat.com> +# +# This work is licensed under the terms of the GNU GPL, version 2 or +# later. See the COPYING file in the top-level directory. + +## +# = vhost user backend discovery & capabilities +## + +## +# @VHostUserBackendType: +# +# List the various vhost user backend types. +# +# @net: virtio net +# @block: virtio block +# @console: virtio console +# @rng: virtio rng +# @balloon: virtio balloon +# @rpmsg: virtio remote processor messaging +# @scsi: virtio scsi +# @9p: 9p virtio console +# @rproc-serial: virtio remoteproc serial link +# @caif: virtio caif +# @gpu: virtio gpu +# @input: virtio input +# @vsock: virtio vsock transport +# @crypto: virtio crypto
Is it possible to actually use an external backend process with all these yet ? If not, perhaps we should only start with the backends that will be usable immediately ?
No, most of them don't have vhost-user support in qemu. Nevertheless, I think the vhost-user spec should cover existing virtio devices, and not be limited to what qemu can do today, for interoperability.
+# +# Since: 3.2 +## +{ + 'enum': 'VHostUserBackendType', + 'data': [ 'net', 'block', 'console', 'rng', 'balloon', 'rpmsg', + 'scsi', '9p', 'rproc-serial', 'caif', 'gpu', 'input', 'vsock', + 'crypto' ] +}
Regardless of the answer to the above question,
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
thanks
Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
-- Marc-André Lureau