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

Guennadi Liakhovetski
2020-07-22T15:09:34Z

Hi,

Now that virtio-rpmsg endianness fixes have been merged we can
proceed with the next step.

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

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2.27.0