diff options
Diffstat (limited to 'drivers/vfio/mdev/vfio_mdev.c')
| -rw-r--r-- | drivers/vfio/mdev/vfio_mdev.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c index a5c77ccb24f7..e12196ffd487 100644 --- a/drivers/vfio/mdev/vfio_mdev.c +++ b/drivers/vfio/mdev/vfio_mdev.c @@ -17,13 +17,33 @@ #include "mdev_private.h" +static int vfio_mdev_open_device(struct vfio_device *core_vdev) +{ + struct mdev_device *mdev = to_mdev_device(core_vdev->dev); + struct mdev_parent *parent = mdev->type->parent; + + if (unlikely(!parent->ops->open_device)) + return 0; + + return parent->ops->open_device(mdev); +} + +static void vfio_mdev_close_device(struct vfio_device *core_vdev) +{ + struct mdev_device *mdev = to_mdev_device(core_vdev->dev); + struct mdev_parent *parent = mdev->type->parent; + + if (likely(parent->ops->close_device)) + parent->ops->close_device(mdev); +} + static int vfio_mdev_open(struct vfio_device *core_vdev) { struct mdev_device *mdev = to_mdev_device(core_vdev->dev); struct mdev_parent *parent = mdev->type->parent; if (unlikely(!parent->ops->open)) - return -EINVAL; + return 0; return parent->ops->open(mdev); } @@ -44,7 +64,7 @@ static long vfio_mdev_unlocked_ioctl(struct vfio_device *core_vdev, struct mdev_parent *parent = mdev->type->parent; if (unlikely(!parent->ops->ioctl)) - return -EINVAL; + return 0; return parent->ops->ioctl(mdev, cmd, arg); } @@ -100,6 +120,8 @@ static void vfio_mdev_request(struct vfio_device *core_vdev, unsigned int count) static const struct vfio_device_ops vfio_mdev_dev_ops = { .name = "vfio-mdev", + .open_device = vfio_mdev_open_device, + .close_device = vfio_mdev_close_device, .open = vfio_mdev_open, .release = vfio_mdev_release, .ioctl = vfio_mdev_unlocked_ioctl, |