Re: [PATCH v8] introduce vfio-user protocol specification

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Tue, Apr 27, 2021 at 12:02:44PM +0000, Thanos Makatos wrote:
> 
> 
> > -----Original Message-----
> > From: Stefan Hajnoczi <stefanha@redhat.com>
> > Sent: 26 April 2021 16:48
> > To: Thanos Makatos <thanos.makatos@nutanix.com>; Peter Maydell
> > <peter.maydell@linaro.org>; Michael S. Tsirkin <mst@redhat.com>
> > Cc: qemu-devel@nongnu.org; John Levon <levon@movementarian.org>;
> > John G Johnson <john.g.johnson@oracle.com>;
> > benjamin.walker@intel.com; Elena Ufimtseva
> > <elena.ufimtseva@oracle.com>; jag.raman@oracle.com;
> > james.r.harris@intel.com; Swapnil Ingle <swapnil.ingle@nutanix.com>;
> > konrad.wilk@oracle.com; alex.williamson@redhat.com;
> > yuvalkashtan@gmail.com; tina.zhang@intel.com;
> > marcandre.lureau@redhat.com; ismael@linux.com;
> > Kanth.Ghatraju@oracle.com; Felipe Franciosi <felipe@nutanix.com>;
> > xiuchun.lu@intel.com; tomassetti.andrea@gmail.com; Raphael Norwitz
> > <raphael.norwitz@nutanix.com>; changpeng.liu@intel.com;
> > dgilbert@redhat.com; Yan Zhao <yan.y.zhao@intel.com>; Michael S . Tsirkin
> > <mst@redhat.com>; Gerd Hoffmann <kraxel@redhat.com>; Christophe de
> > Dinechin <cdupontd@redhat.com>; Jason Wang <jasowang@redhat.com>;
> > Cornelia Huck <cohuck@redhat.com>; Kirti Wankhede
> > <kwankhede@nvidia.com>; Paolo Bonzini <pbonzini@redhat.com>;
> > mpiszczek@ddn.com; John Levon <john.levon@nutanix.com>
> > Subject: Re: [PATCH v8] introduce vfio-user protocol specification
> > 
> > On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> > > This patch introduces the vfio-user protocol specification (formerly
> > > known as VFIO-over-socket), which is designed to allow devices to be
> > > emulated outside QEMU, in a separate process. vfio-user reuses the
> > > existing VFIO defines, structs and concepts.
> > >
> > > It has been earlier discussed as an RFC in:
> > > "RFC: use VFIO over a UNIX domain socket to implement device offloading"
> > >
> > > Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
> > > Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
> > > Signed-off-by: John Levon <john.levon@nutanix.com>
> > 
> > No review yet but I wanted to agree on the next steps once the spec has
> > been reviewed.
> > 
> > One or more of you would be added to ./MAINTAINERS and handle future
> > patch review and pull requests for the spec.
> > 
> > The spec will be unstable/experimental at least until QEMU vfio-user
> > implementation has landed. Otherwise it's hard to know whether the
> > protocol really works.
> > 
> > Does this sound good?
> 
> Yes, of course.

Great, hope to hear from Michael and Peter too.

I will review the spec on Monday.

Stefan

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