[Qemu-devel] [RFC v3 00/10] 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.

for turning on SERR# patch in seabios list, pls see:
http://www.seabios.org/pipermail/seabios/2015-January/008591.html

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 (10):
  pcie_aer: fix typos in pcie_aer_inject_error comment
  aer: fix a wrong init PCI_ERR_COR_STATUS w1cmask type register
  aer: introduce pcie_aer_setup to setup aer related bits
  vfio: add pcie extanded capability support
  pcie_aer: expose pcie_aer_msg() interface
  piix: disable all vfio device aercap property
  vfio_pci: change vfio device features bit macro to enum definition
  vfio-pci: add VFIO_FEATURE_ENABLE_AER_CAP feature
  vfio-pci: pass the aer error to guest
  pcie_aer: fix a trivial typo in PCIEAERMsg comments

 hw/i386/pc_piix.c         |  16 ++++++
 hw/pci/pcie_aer.c         |  73 +++++++++++++++----------
 hw/vfio/pci.c             | 134 ++++++++++++++++++++++++++++++++++++++++++----
 include/hw/pci/pcie_aer.h |   4 +-
 4 files changed, 188 insertions(+), 39 deletions(-)

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1.9.3