Issues with bhyve under KVM

[Peter Grehan]

Hi Cory,

> vmx_init: ept initialization failed (22)
> module_register_init: MOD_LOAD (vmm, 0xffffffff81e16fd0, 0) error 22
>
> A more useful error, but still incorrect I am pretty sure.

  This one is because KVM doesn't support the invvpid instruction when 
running nested. The bhyve ept init code requires for this, though it may 
not be strictly necessary.

  I've created PR 203994 to track the issues for running nested under KVM.

later,

Peter.