Re: KVM Nested L2 guest startup problems

[Paolo Bonzini]

Il 07/05/2014 13:37, Paolo Bonzini ha scritto:
> Il 07/05/2014 13:16, Abel Gordon ha scritto:
> > > > PLE should be left enabled, I think.
> > Well... the PLE settings L0 uses to run  L1 (vmcs01) may be different
> > than the PLE settings L1 configured to run  L2 (vmcs12).
> > For example, L0 can use a  ple_gap to run L1 that is bigger than the
> > ple_gap L1 configured to run L2. Or  L0 can use a ple_window to run L1
> > that is smaller than the ple_window L1 configured to run L2.
>
> That's correct.  We should leave PLE enabled while running L2, but hide
> the feature altogether from L1.

... which we already do.  The only secondary execution controls we allow 
are APIC page, unrestricted guest, WBINVD exits, and of course EPT.

Paolo
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