linux-kernel - [Patch V2 0/3] xen, usb: support pvUSB frontend driver

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Message-Id: <1434118201-25617-1-git-send-email-jgross@suse.com>
Date:	Fri, 12 Jun 2015 16:09:58 +0200
From:	Juergen Gross <jgross@...e.com>
To:	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	konrad.wilk@...cle.com, david.vrabel@...rix.com,
	boris.ostrovsky@...cle.com, linux-usb@...r.kernel.org,
	gregkh@...uxfoundation.org
Cc:	Juergen Gross <jgross@...e.com>
Subject: [Patch V2 0/3] xen, usb: support pvUSB frontend driver

This series adds XEN guest pvUSB support. With pvUSB it is possible to
use physical USB devices from a XEN domain.

The support consists of a frontend in the unprivileged domU passing
I/O-requests to the backend in a driver domain (usually Dom0). The
backend is not part of this patch series, as it will be supported
via qemu.

The code is taken (and adapted) from the original pvUSB implementation
done for Linux 2.6 in 2008 by Fujitsu.

Normal operation of USB devices by adding and removing them dynamically
to/from a domain has been tested using various USB devices (USB 1.1,
2.0 and 3.0). The pvUSB backend for these tests was a SUSE SLES Dom0
with a kernel based backend driver.

Changes since V1:
- removed backend, as it can be implemented in user land
- added some access macros and definitions to the pvUSB interface
  description to make it independant from linux kernel USB internals
- adapted frontend to newer kernel version and use new pvUSB
  interface macros
- set port status in one chunk as suggested by Oliver Neukum


Juergen Gross (3):
  usb: Add Xen pvUSB protocol description
  usb: Introduce Xen pvUSB frontend
  xen: add Xen pvUSB maintainer

 MAINTAINERS                      |    8 +
 drivers/usb/Kconfig              |    2 +
 drivers/usb/Makefile             |    2 +
 drivers/usb/xen/Kconfig          |   10 +
 drivers/usb/xen/Makefile         |    5 +
 drivers/usb/xen/xen-usbfront.c   | 1647 ++++++++++++++++++++++++++++++++++++++
 include/xen/interface/io/usbif.h |  252 ++++++
 7 files changed, 1926 insertions(+)
 create mode 100644 drivers/usb/xen/Kconfig
 create mode 100644 drivers/usb/xen/Makefile
 create mode 100644 drivers/usb/xen/xen-usbfront.c
 create mode 100644 include/xen/interface/io/usbif.h

-- 
2.1.4

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