[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [RFC v8 00/13] vfio-pci: pass the aer error to guest

From: Chen Fan
Subject: Re: [Qemu-devel] [RFC v8 00/13] vfio-pci: pass the aer error to guest
Date: Wed, 27 May 2015 10:51:20 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0


Because having no body comment it.
and I have made some updates on this patches.
which are:
   1. add check the case when one aer devices is re-hotplugged
       to upper bus which will conflict the present which enable aer.
   2. add vfio_pci_affect_devices_is_multi to specify signal or
       multi in-use when call hot reset.

meantime I have sent the new v8.1 version out.

please ignore this patches.


On 05/25/2015 06:06 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. some bug fixes requested by Alex

    1. add has_bus_reset to support reset host bus.

    1. add secondary bus callbacks to reset host bus.

    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 (13):
   vfio: extract vfio_get_hot_reset_info as a single function
   vfio: squeeze out vfio_pci_do_hot_reset for support bus reset
   vfio: add pcie extanded capability support
   aer: impove pcie_aer_init to support vfio device
   vfio: add aer support for vfio device
   vfio: add check host bus reset is support or not
   vfio: add check for vfio devices which enable aer should support bus
   pci: add bus reset_notifiers callbacks for host bus reset
   vfio: add sec_bus_reset notifier to notify physical bus reset is
   vfio: do hot bus reset when do virtual secondary bus reset
   pcie_aer: expose pcie_aer_msg() interface
   vfio-pci: pass the aer error to guest
   vfio: add 'aer' property to expose aercap

  hw/pci-bridge/ioh3420.c            |   2 +-
  hw/pci-bridge/xio3130_downstream.c |   2 +-
  hw/pci-bridge/xio3130_upstream.c   |   2 +-
  hw/pci/pci.c                       |  16 ++
  hw/pci/pci_bridge.c                |   5 +
  hw/pci/pcie_aer.c                  |   6 +-
  hw/vfio/pci.c                      | 509 +++++++++++++++++++++++++++++++++----
  include/hw/pci/pci.h               |   4 +
  include/hw/pci/pci_bus.h           |   2 +
  include/hw/pci/pcie_aer.h          |   3 +-
  10 files changed, 488 insertions(+), 63 deletions(-)

reply via email to

[Prev in Thread] Current Thread [Next in Thread]