diff options
Diffstat (limited to 'drivers/vfio/vfio.c')
| -rw-r--r-- | drivers/vfio/vfio.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index c2a360437e6c..a0f73bd8e53f 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1731,6 +1731,27 @@ bool vfio_file_enforced_coherent(struct file *file) } EXPORT_SYMBOL_GPL(vfio_file_enforced_coherent); +/** + * vfio_file_set_kvm - Link a kvm with VFIO drivers + * @file: VFIO group file + * @kvm: KVM to link + * + * The kvm pointer will be forwarded to all the vfio_device's attached to the + * VFIO file via the VFIO_GROUP_NOTIFY_SET_KVM notifier. + */ +void vfio_file_set_kvm(struct file *file, struct kvm *kvm) +{ + struct vfio_group *group = file->private_data; + + if (file->f_op != &vfio_group_fops) + return; + + group->kvm = kvm; + blocking_notifier_call_chain(&group->notifier, + VFIO_GROUP_NOTIFY_SET_KVM, kvm); +} +EXPORT_SYMBOL_GPL(vfio_file_set_kvm); + /* * Sub-module support */ @@ -1999,14 +2020,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group, return ret; } -void vfio_group_set_kvm(struct vfio_group *group, struct kvm *kvm) -{ - group->kvm = kvm; - blocking_notifier_call_chain(&group->notifier, - VFIO_GROUP_NOTIFY_SET_KVM, kvm); -} -EXPORT_SYMBOL_GPL(vfio_group_set_kvm); - static int vfio_register_group_notifier(struct vfio_group *group, unsigned long *events, struct notifier_block *nb) |