[PATCH 0/5] powerpc: EEH fixes

[Gavin Shan]

The series of patches is to fix recursive EEH error during recovery
for VFIO-PCI except some cleanup. The recursive EEH error is caused
by MMIO access when the PE is under reset or the PCI device isn't
enabled yet. The solution is to freeze the PE until the PCI device
is enabled after PE reset.

Another issue is that one specific PE is frozen when being passed
through. It caused the device can't work properly in userland (e.g.
QEMU). The fix is to clear the frozen state when passing PE to
userland.

Gavin Shan (5):
  powerpc/eeh: Drop unused argument in eeh_check_failure()
  powerpc/eeh: Add eeh_pe_state sysfs entry
  powerpc/eeh: Freeze PE before PE reset
  powerpc/eeh: Reenable PCI devices after reset
  powerpc/eeh: Clear frozen state on passing device

 arch/powerpc/include/asm/eeh.h               |  30 +++----
 arch/powerpc/kernel/eeh.c                    | 116 +++++++++++++++++++++------
 arch/powerpc/kernel/eeh_sysfs.c              |  61 +++++++++++++-
 arch/powerpc/platforms/powernv/eeh-ioda.c    |  43 +++++++---
 arch/powerpc/platforms/pseries/eeh_pseries.c |   4 +-
 5 files changed, 203 insertions(+), 51 deletions(-)

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1.8.3.2