From: Chen Fan <chen.fan.f...@cn.fujitsu.com> For now, for vfio pci passthough devices when qemu receives an error from host aer report, currentlly just terminate the guest, but usually user want to know what error occurred but stopping 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.
v15-v16: 10/14, 11/14 are new to introduce a reset sequence id to specify the vfio devices has been reset for that reset. other patches aren't modified. v14-v15: 1. add device hot reset callback 2. add bus_in_reset for vfio device to avoid multi do host bus reset v13-v14: 1. for multifunction device, requiring all functions enable AER.(9/13) 2. due to all affected functions receive error signal, ignore no error occurred function. (12/13) v12-v13: 1. since support multifuncion hotplug, here add callback to enable aer. 2. add pci device pre+post reset for aer host reset. Chen Fan (14): vfio: extract vfio_get_hot_reset_info as a single function vfio: squeeze out vfio_pci_do_hot_reset for support bus reset pcie: modify the capability size assert vfio: make the 4 bytes aligned for capability size 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 add check reset mechanism when hotplug vfio device pci: introduce pci bus pre reset vfio: introduce last reset sequence id 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 | 42 +++ hw/pci/pci_bridge.c | 3 + hw/pci/pcie.c | 2 +- hw/pci/pcie_aer.c | 6 +- hw/vfio/pci.c | 616 +++++++++++++++++++++++++++++++++---- hw/vfio/pci.h | 9 + include/hw/pci/pci.h | 1 + include/hw/pci/pci_bus.h | 8 + include/hw/pci/pcie_aer.h | 3 +- 12 files changed, 624 insertions(+), 72 deletions(-) -- 1.9.3