[PATCH v6 3/3] QEMU-AER: Qemu changes to support AER for VFIO-PCI devices

- Create eventfd per vfio device assigned to a guest and register an event handler - This fd is passed to the vfio_pci driver through the SET_IRQ ioctl - When the device encounters an error, the eventfd is signalled and the qemu eventfd handler gets

[PATCH v6 3/3] QEMU-AER: Qemu changes to support AER for VFIO-PCI devices

- Create eventfd per vfio device assigned to a guest and register an event handler - This fd is passed to the vfio_pci driver through the SET_IRQ ioctl - When the device encounters an error, the eventfd is signalled and the qemu eventfd handler gets