VFIO-AER: Vfio-pci driver changes for supporting AER
authorVijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Mon, 11 Mar 2013 15:31:22 +0000 (09:31 -0600)
committerAlex Williamson <alex.williamson@redhat.com>
Mon, 11 Mar 2013 15:31:22 +0000 (09:31 -0600)
commitdad9f8972e04cd081a028d8fb1249d746d97fc03
tree8f3f6bbfa41f3a60853007e33846d6fac2b139ea
parent44f507163d9e51238458ee6904b4d71fb0723723
VFIO-AER: Vfio-pci driver changes for supporting AER

- New VFIO_SET_IRQ ioctl option to pass the eventfd that is signaled when
  an error occurs in the vfio_pci_device

- Register pci_error_handler for the vfio_pci driver

- When the device encounters an error, the error handler registered by
  the vfio_pci driver gets invoked by the AER infrastructure

- In the error handler, signal the eventfd registered for the device.

- This results in the qemu eventfd handler getting invoked and
  appropriate action taken for the guest.

Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
drivers/vfio/pci/vfio_pci.c
drivers/vfio/pci/vfio_pci_intrs.c
drivers/vfio/pci/vfio_pci_private.h
include/uapi/linux/vfio.h