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SubjectRe: KVM Nested L2 guest startup problems
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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