linux-kernel - [char-misc-next 00/13] mei: add support for virtual tags

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Date:   Tue, 18 Aug 2020 14:51:34 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Alexander Usyskin <alexander.usyskin@...el.com>,
        linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 00/13] mei: add support for virtual tags

Add support for mei virtualization for ACRN but might be used for other purposes such as sandboxing.
ACRN is an open-source hypervisor maintained by The Linux Foundation.
The support for ACRN was added in kernel in v5.3.
The patches were part of the ACRN service OS kernel for a while.
https://github.com/projectacrn/acrn-kernel

Only selected platforms, notable for IoT usage, such as APL-I, have
firmware that supports vtags.

Alexander Usyskin (10):
  mei: hbm: add capabilities message
  mei: restrict vtag support to hbm version 2.2
  mei: add vtag support bit in client properties
  mei: bump hbm version to 2.2
  mei: add a spin lock to protect rd_completed queue
  mei: add a vtag map for each client
  mei: handle tx queue flushing for vtag connections
  mei: bus: use zero vtag for bus clients.
  mei: bus: unconditionally enable clients with vtag support
  mei: add connect with vtag ioctl

Tomas Winkler (3):
  mei: add support for mei extended header.
  mei: docs: add vtag ioctl documentation
  mei: virtio: virtualization frontend driver

 Documentation/ABI/testing/sysfs-bus-mei |   7 +
 Documentation/driver-api/mei/mei.rst    |  37 +
 drivers/misc/mei/Kconfig                |  10 +
 drivers/misc/mei/Makefile               |   3 +
 drivers/misc/mei/bus-fixup.c            |  12 +
 drivers/misc/mei/bus.c                  |  89 ++-
 drivers/misc/mei/client.c               | 423 ++++++++++--
 drivers/misc/mei/client.h               |  22 +-
 drivers/misc/mei/debugfs.c              |   9 +-
 drivers/misc/mei/hbm.c                  | 101 ++-
 drivers/misc/mei/hbm.h                  |   2 +
 drivers/misc/mei/hw-virtio.c            | 874 ++++++++++++++++++++++++
 drivers/misc/mei/hw.h                   | 150 +++-
 drivers/misc/mei/interrupt.c            | 113 ++-
 drivers/misc/mei/main.c                 | 284 +++++++-
 drivers/misc/mei/mei_dev.h              |  34 +-
 include/uapi/linux/mei.h                |  49 ++
 17 files changed, 2084 insertions(+), 135 deletions(-)
 create mode 100644 drivers/misc/mei/hw-virtio.c

-- 
2.25.4