Thread (18 messages) 18 messages, 3 authors, 2020-08-25

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

From: Guennadi Liakhovetski <hidden>
Date: 2020-08-04 14:46:49
Also in: kvm, linux-remoteproc

On Tue, Aug 04, 2020 at 10:10:23AM -0400, Michael S. Tsirkin wrote:
On Tue, Aug 04, 2020 at 03:19:19PM +0200, Guennadi Liakhovetski wrote:
quoted
Hi Michael,

On Tue, Aug 04, 2020 at 08:26:53AM -0400, Michael S. Tsirkin wrote:
quoted
On Wed, Jul 22, 2020 at 05:09:23PM +0200, Guennadi Liakhovetski wrote:
quoted
Hi,

Now that virtio-rpmsg endianness fixes have been merged we can 
proceed with the next step.
OK my attempts to resolve conflicts just created a mess.
You just need to apply my previous patch for virtio-rpmsg first 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/rpmsg/virtio_rpmsg_bus.c?id=111d1089700cdb752681ef44f54ab6137736f5c2
Then this series should apply cleanly.

Thanks
Guennadi
Hmm.  Could you test the vhost branch in my tree, and tell me if that looks
good to you?
Sorry, I'm not sure I understand why you're trying to resolve conflicts 
manually. My previous patch is already in "next," if you don't pull from 
"next" you will have a conflict when pushing to it. What am I missing?

Thanks
Guennadi
quoted
quoted
I dropped these for now, could you pls rebase on top
of linux-next branch in my tree, and repost?
Thanks!

quoted
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
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