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| author | Steve Sistare <steven.sistare@oracle.com> | 2021-01-29 19:54:10 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-02-01 23:20:07 +0300 |
| commit | ec5e32940cc9d2a8a321cb7d756fb6ae45702d03 (patch) | |
| tree | e0314bcdcfd0ddb83fcf52a1c76b5f1b9bc94e73 /drivers/vfio | |
| parent | c3cbab24db3860d68924d8a3f752a97d3cca1623 (diff) | |
| download | linux-ec5e32940cc9d2a8a321cb7d756fb6ae45702d03.tar.xz | |
vfio: iommu driver notify callback
Define a vfio_iommu_driver_ops notify callback, for sending events to
the driver. Drivers are not required to provide the callback, and
may ignore any events. The handling of events is driver specific.
Define the CONTAINER_CLOSE event, called when the container's file
descriptor is closed. This event signifies that no further state changes
will occur via container ioctl's.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 4ad8a35667a7..38779e6fd80c 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1220,6 +1220,11 @@ static int vfio_fops_open(struct inode *inode, struct file *filep) static int vfio_fops_release(struct inode *inode, struct file *filep) { struct vfio_container *container = filep->private_data; + struct vfio_iommu_driver *driver = container->iommu_driver; + + if (driver && driver->ops->notify) + driver->ops->notify(container->iommu_data, + VFIO_IOMMU_CONTAINER_CLOSE); filep->private_data = NULL; |