There are now fewer VDSM hooks available from the host repos (possibly because some features, like NUMA support, are now available without the hook). 

On a 4.0 host: 

# yum search vdsm-hook
============================ N/S matched: vdsm-hook ============================
vdsm-hook-allocate_net.noarch : random_network allocation hook for VDSM
vdsm-hook-checkimages.noarch : Qcow2 disk image format check hook for VDSM
vdsm-hook-checkips.x86_64 : Check connectivity from the host to designated IPs
vdsm-hook-diskunmap.noarch : Activate UNMAP for disk/lun devices
vdsm-hook-ethtool-options.noarch : Allow setting custom ethtool options for vdsm
                                 : controlled nics
vdsm-hook-extnet.noarch : Force a vNIC to connect to a specific libvirt network
vdsm-hook-extra-ipv4-addrs.x86_64 : Set extra ipv4 addresses for vdsm networks.
vdsm-hook-fakesriov.x86_64 : Generate fake SR-IOV devices
vdsm-hook-fakevmstats.noarch : Generate random VM statistics
vdsm-hook-faqemu.noarch : Fake qemu process for VDSM quality assurance
vdsm-hook-fcoe.noarch : Hook to enable FCoE support
vdsm-hook-fileinject.noarch : Allow uploading file to VMs disk
vdsm-hook-floppy.noarch : Allow adding floppy to VM
vdsm-hook-hostusb.noarch : Allow attaching USB device from host
vdsm-hook-httpsisoboot.noarch : Allow directly booting from an https available
                              : ISO
vdsm-hook-hugepages.noarch : Huge pages enable user to handle VM with 2048KB
                           : page files.
vdsm-hook-ipv6.noarch : Set IPv6 configuration through custom network properties
vdsm-hook-isolatedprivatevlan.noarch : Isolated network environment for VMs
vdsm-hook-macbind.noarch : Bind a vNIC to a Bridge
vdsm-hook-macspoof.noarch : Disables MAC spoofing filtering
vdsm-hook-nestedvt.noarch : Nested Virtualization support for VDSM
vdsm-hook-noipspoof.noarch : Enables strict anti-spoofing filtering
vdsm-hook-numa.noarch : NUMA support for VDSM
vdsm-hook-openstacknet.noarch : OpenStack Network vNICs support for VDSM
vdsm-hook-ovs.noarch : Open vSwitch support for VDSM
vdsm-hook-pincpu.noarch : Hook pin VM so specific CPUs
vdsm-hook-promisc.noarch : Network interface promiscuous mode support for VDSM
vdsm-hook-qemucmdline.noarch : QEMU cmdline hook for VDSM
vdsm-hook-qos.noarch : QoS network in/out traffic support for VDSM
vdsm-hook-scratchpad.noarch : One time disk creation for VDSM
vdsm-hook-smbios.noarch : Adding custom smbios entries to libvirt domain via
                        : VDSM
vdsm-hook-spiceoptions.noarch : To configure spice options for vm
vdsm-hook-vmdisk.noarch : External disk support for VDSM
vdsm-hook-vmfex.noarch : vmfex support for VDSM
vdsm-hook-vmfex-dev.noarch : VM-FEX vNIC support for VDSM


On a 4.1 host: 

# yum search vdsm-hook
============================ N/S matched: vdsm-hook ============================
vdsm-hook-ethtool-options.noarch : Allow setting custom ethtool options for vdsm
                                 : controlled nics
vdsm-hook-fcoe.noarch : Hook to enable FCoE support
vdsm-hook-macspoof.noarch : Disables MAC spoofing filtering
vdsm-hook-openstacknet.noarch : OpenStack Network vNICs support for VDSM
vdsm-hook-vhostmd.noarch : VDSM hook set for interaction with vhostmd
vdsm-hook-vmfex-dev.noarch : VM-FEX vNIC support for VDSM


Two action items are required: 
1. Remove references to the hooks that are no longer available.
2. If any hooks are part of procedures, find out if there is a newer way to accomplish the task (or if it cannot be done anymore). Some of these may already be documented, but others may not (example: https://access.redhat.com/discussions/3065711).