[libvirt] [PATCH v4 00/10] Few VFIO related fixes

[Shivaprasad G Bhat]

The series fixes few VFIO related host crash issues. The patches 3, 4, 9 and 10
are actual fixes. Patch 7 and 8 are test changes to allow testing patch 9.
Rest of the patches are mostly code movements except for patch 2.

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Changes from v3 -> v4 
      - Andrea's suggestion not to overload the usage of stubDriver to set it in
        virPCINew is addressed. Not setting it any more. Fetch it fresh from
        sysfs.
      - The test case added in old P7 is improvised
      - Old P7 is split into 3 patches where I have moved the virpcimock
        changes to support iommu into a new patch.

Shivaprasad G Bhat (10):
      Implement virPCIIsKnownStub function
      Add iommu group number info to virPCIDevice
      Refuse to reattach from vfio if the iommu group is in use by any domain
      Wait for vfio-pci device cleanups before reassinging the device to host driver
      Split reprobe action from the virPCIUnbindFromStub into a new function
      Pass activeDevs and inactiveDevs to virPCIDeviceUnbindFromStub and virPCIDeviceBindToStub
      Change the negative test case to try pciback instead of vfio-pci
      Add iommu info for pci on mocked sysfs
      Postpone reprobing till all the devices in iommu group are unbound from vfio
      Wait for iommmu device to go away before reprobing the host driver


 src/util/virhostdev.c |   28 ++++-
 src/util/virpci.c     |  297 +++++++++++++++++++++++++++++++++++++++++--------
 tests/virpcimock.c    |  193 +++++++++++++++++++++++++++++---
 tests/virpcitest.c    |  117 +++++++++++++++++++
 4 files changed, 566 insertions(+), 69 deletions(-)

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