[Sound-open-firmware] [PATCH v4 0/4] Add a vhost RPMsg API

[Mathieu Poirier]

On Thu, 30 Jul 2020 at 23:47, Guennadi Liakhovetski
<guennadi.liakhovetski at linux.intel.com> wrote:
>
> Hi Michael,
>
> On Thu, Jul 30, 2020 at 12:08:29PM -0400, Michael S. Tsirkin wrote:
> > On Wed, Jul 22, 2020 at 05:09:23PM +0200, Guennadi Liakhovetski wrote:
> > > Hi,
> > >
> > > Now that virtio-rpmsg endianness fixes have been merged we can
> > > proceed with the next step.
> >
> > Which tree is this for?
>
> The essential part of this series is for drivers/vhost, so, I presume
> that should be the target tree as well. There is however a small part
> for the drivers/rpmsg, should I split this series in two or shall we
> first review is as a whole to make its goals clearer?

I suggest to keep it whole for now.

>
> Thanks
> Guennadi
>
> > > v4:
> > > - add endianness conversions to comply with the VirtIO standard
> > >
> > > v3:
> > > - address several checkpatch warnings
> > > - address comments from Mathieu Poirier
> > >
> > > v2:
> > > - update patch #5 with a correct vhost_dev_init() prototype
> > > - drop patch #6 - it depends on a different patch, that is currently
> > >   an RFC
> > > - address comments from Pierre-Louis Bossart:
> > >   * remove "default n" from Kconfig
> > >
> > > Linux supports RPMsg over VirtIO for "remote processor" / AMP use
> > > cases. It can however also be used for virtualisation scenarios,
> > > e.g. when using KVM to run Linux on both the host and the guests.
> > > This patch set adds a wrapper API to facilitate writing vhost
> > > drivers for such RPMsg-based solutions. The first use case is an
> > > audio DSP virtualisation project, currently under development, ready
> > > for review and submission, available at
> > > https://github.com/thesofproject/linux/pull/1501/commits
> > >
> > > Thanks
> > > Guennadi
> > >
> > > Guennadi Liakhovetski (4):
> > >   vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl
> > >   rpmsg: move common structures and defines to headers
> > >   rpmsg: update documentation
> > >   vhost: add an RPMsg API
> > >
> > >  Documentation/rpmsg.txt          |   6 +-
> > >  drivers/rpmsg/virtio_rpmsg_bus.c |  78 +------
> > >  drivers/vhost/Kconfig            |   7 +
> > >  drivers/vhost/Makefile           |   3 +
> > >  drivers/vhost/rpmsg.c            | 375 +++++++++++++++++++++++++++++++
> > >  drivers/vhost/vhost_rpmsg.h      |  74 ++++++
> > >  include/linux/virtio_rpmsg.h     |  83 +++++++
> > >  include/uapi/linux/rpmsg.h       |   3 +
> > >  include/uapi/linux/vhost.h       |   4 +-
> > >  9 files changed, 553 insertions(+), 80 deletions(-)
> > >  create mode 100644 drivers/vhost/rpmsg.c
> > >  create mode 100644 drivers/vhost/vhost_rpmsg.h
> > >  create mode 100644 include/linux/virtio_rpmsg.h
> > >
> > > --
> > > 2.27.0
> >