1VFIO virtual device
2===================
3
4Device types supported:
5  KVM_DEV_TYPE_VFIO
6
7Only one VFIO instance may be created per VM.  The created device
8tracks VFIO groups in use by the VM and features of those groups
9important to the correctness and acceleration of the VM.  As groups
10are enabled and disabled for use by the VM, KVM should be updated
11about their presence.  When registered with KVM, a reference to the
12VFIO-group is held by KVM.
13
14Groups:
15  KVM_DEV_VFIO_GROUP
16
17KVM_DEV_VFIO_GROUP attributes:
18  KVM_DEV_VFIO_GROUP_ADD: Add a VFIO group to VFIO-KVM device tracking
19  KVM_DEV_VFIO_GROUP_DEL: Remove a VFIO group from VFIO-KVM device tracking
20
21For each, kvm_device_attr.addr points to an int32_t file descriptor
22for the VFIO group.
23