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 A further patch for the ADSP vhost RPMsg driver will be sent separately for review only since it cannot be merged without audio patches being upstreamed first.
Thanks Guennadi
Guennadi Liakhovetski (6): vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl vhost: (cosmetic) remove a superfluous variable initialisation rpmsg: move common structures and defines to headers rpmsg: update documentation vhost: add an rpmsg API rpmsg: add a device ID to also bind to the ADSP device
Documentation/rpmsg.txt | 2 +- drivers/rpmsg/virtio_rpmsg_bus.c | 79 +-------- drivers/vhost/Kconfig | 8 + drivers/vhost/Makefile | 3 + drivers/vhost/rpmsg.c | 372 +++++++++++++++++++++++++++++++++++++++ drivers/vhost/vhost.c | 2 +- drivers/vhost/vhost_rpmsg.h | 74 ++++++++ include/linux/virtio_rpmsg.h | 81 +++++++++ include/uapi/linux/rpmsg.h | 3 + include/uapi/linux/vhost.h | 4 +- 10 files changed, 549 insertions(+), 79 deletions(-) create mode 100644 drivers/vhost/rpmsg.c create mode 100644 drivers/vhost/vhost_rpmsg.h create mode 100644 include/linux/virtio_rpmsg.h