Woot! Success, so I found the answer to the host-passthrough problem in another thread.
So in the thread it says to add the following;
“options kvm ignore_msrs=1” to “/etc/modprobe.d/kvm.conf”
However in my case the file is “/etc/modprobe.d/qemu-system-x86.conf” and when added I rebooted I changed to host-passthrough and disabled SMEP now task manager is reporting the CPU correctly.
Thanks again for the help!