[Qemu-devel] [RFC v4 0/9] pass aer error to guest for vfio device

[Chen Fan <chen.fan.fnst@cn.fujitsu.com>]

For now, for vfio pci passthough devices when qemu receives
an error from host aer report, there just terminate the guest,
but usually user want to know what error occurred but stop the
guest, so this patches add aer capability support for vfio device,
and pass the error to guest, and have guest driver to recover
from the error.
and turning on SERR# for error forwording in bridge control register
patch in seabios has been merged.

v3-v4:
   1. add 'x-aer' for user to off aer capability.
   2. refactor vfio device to parse extended capabilities.

v2-v3:
   1. refactor vfio device to parse extended capability.
   2. add global property for piix4 to disable vfio aer cap.

v1-v2:
   1. turn on SERR# for bridge control register in firmware.
   2. initilize aer capability for vfio device.
   3. fix some trivial bug.

Chen Fan (9):
  pcie_aer: fix typos in pcie_aer_inject_error comment
  aer: fix a wrong init PCI_ERR_COR_STATUS w1cmask type register
  vfio: add pcie extanded capability support
  aer: impove pcie_aer_init to support vfio device
  vfio: add aer support for vfio device
  vfio: add 'x-aer' option to disable aer capability
  pcie_aer: expose pcie_aer_msg() interface
  vfio-pci: pass the aer error to guest
  pcie: fix several trivial typos

 hw/pci-bridge/ioh3420.c            |   3 +-
 hw/pci-bridge/xio3130_downstream.c |   3 +-
 hw/pci-bridge/xio3130_upstream.c   |   3 +-
 hw/pci/pcie_aer.c                  |  17 ++--
 hw/vfio/pci.c                      | 160 +++++++++++++++++++++++++++++++++++--
 include/hw/pci/pci.h               |   2 +-
 include/hw/pci/pcie_aer.h          |   7 +-
 7 files changed, 174 insertions(+), 21 deletions(-)

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1.9.3