4 Device types supported:
7 Only one VFIO instance may be created per VM. The created device
8 tracks VFIO groups in use by the VM and features of those groups
9 important to the correctness and acceleration of the VM. As groups
10 are enabled and disabled for use by the VM, KVM should be updated
11 about their presence. When registered with KVM, a reference to the
12 VFIO-group is held by KVM.
17 KVM_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
21 For each, kvm_device_attr.addr points to an int32_t file descriptor