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

[Thanos Makatos]

> -----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>;
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> <raphael.norwitz@nutanix.com>; changpeng.liu@intel.com;
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> <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.

> 
> Stefan