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 (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(-)