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Re: [Qemu-devel] [PATCH v5 0/7] pass aer error to guest for vfio device

From: Chen Fan
Subject: Re: [Qemu-devel] [PATCH v5 0/7] pass aer error to guest for vfio device
Date: Mon, 16 Mar 2015 10:52:52 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0

Cc: Michael S. Tsirkin

On 03/12/2015 06:23 PM, Chen Fan wrote:
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.

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

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

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

Chen Fan (7):
   vfio: add pcie extanded capability support
   aer: impove pcie_aer_init to support vfio device
   vfio: add aer support for vfio device
   pcie_aer: expose pcie_aer_msg() interface
   vfio-pci: pass the aer error to guest
   vfio: add 'x-aer' property to expose aercap
   pc: add PC_I440FX_COMPAT to disable aercap for vifo device

  hw/i386/pc_piix.c                  |   9 +++
  hw/i386/pc_q35.c                   |   4 +
  hw/pci-bridge/ioh3420.c            |   2 +-
  hw/pci-bridge/xio3130_downstream.c |   2 +-
  hw/pci-bridge/xio3130_upstream.c   |   2 +-
  hw/pci/pcie_aer.c                  |   6 +-
  hw/vfio/pci.c                      | 158 +++++++++++++++++++++++++++++++++++--
  include/hw/compat.h                |  10 +++
  include/hw/pci/pcie_aer.h          |   3 +-
  9 files changed, 182 insertions(+), 14 deletions(-)

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