diff options
Diffstat (limited to 'Documentation/driver-api/vfio.rst')
| -rw-r--r-- | Documentation/driver-api/vfio.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/driver-api/vfio.rst b/Documentation/driver-api/vfio.rst index 68abc089d6dd..363e12c90b87 100644 --- a/Documentation/driver-api/vfio.rst +++ b/Documentation/driver-api/vfio.rst @@ -279,6 +279,7 @@ similar to a file operations structure:: struct iommufd_ctx *ictx, u32 *out_device_id); void (*unbind_iommufd)(struct vfio_device *vdev); int (*attach_ioas)(struct vfio_device *vdev, u32 *pt_id); + void (*detach_ioas)(struct vfio_device *vdev); int (*open_device)(struct vfio_device *vdev); void (*close_device)(struct vfio_device *vdev); ssize_t (*read)(struct vfio_device *vdev, char __user *buf, @@ -315,9 +316,10 @@ container_of(). - The [un]bind_iommufd callbacks are issued when the device is bound to and unbound from iommufd. - - The attach_ioas callback is issued when the device is attached to an - IOAS managed by the bound iommufd. The attached IOAS is automatically - detached when the device is unbound from iommufd. + - The [de]attach_ioas callback is issued when the device is attached to + and detached from an IOAS managed by the bound iommufd. However, the + attached IOAS can also be automatically detached when the device is + unbound from iommufd. - The read/write/mmap callbacks implement the device region access defined by the device's own VFIO_DEVICE_GET_REGION_INFO ioctl. |