[PATCH v5] Fixes for PCI backend for 3.19.

[Konrad Rzeszutek Wilk]

Since v4 (http://lists.xen.org/archives/html/xen-devel/2014-11/msg02130.html):
 - Per David's review altered one of the patches.
v3 (https://lkml.org/lkml/2014/7/8/533):
 - Epic discussion.

These patches fix some issues with PCI back and also add proper
bus/slot reset.


 Documentation/ABI/testing/sysfs-driver-pciback |  12 ++
 drivers/pci/pci.c                              |   5 +-
 drivers/xen/xen-pciback/passthrough.c          |  14 +-
 drivers/xen/xen-pciback/pci_stub.c             | 236 +++++++++++++++++++++----
 drivers/xen/xen-pciback/pciback.h              |   7 +-
 drivers/xen/xen-pciback/vpci.c                 |  14 +-
 drivers/xen/xen-pciback/xenbus.c               |   4 +-
 include/linux/device.h                         |   5 +
 include/linux/pci.h                            |   2 +
 9 files changed, 254 insertions(+), 45 deletions(-)


Jan Beulich (1):
      xen-pciback: drop SR-IOV VFs when PF driver unloads

Konrad Rzeszutek Wilk (8):
      xen/pciback: Don't deadlock when unbinding.
      driver core: Provide an wrapper around the mutex to do lockdep warnings
      xen/pciback: Include the domain id if removing the device whilst still in use
      xen/pciback: Print out the domain owning the device.
      xen/pciback: Remove tons of dereferences
      PCI: Expose pci_load_saved_state for public consumption.
      xen/pciback: Restore configuration space when detaching from a guest.
      xen/pciback: Implement PCI reset slot or bus with 'do_flr' SysFS attribute

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