Re: [PATCH v4 0/4] Add a vhost RPMsg API

Michael S. Tsirkin
2020-07-30T16:08:42Z

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?

> 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