Re: [PATCH 0/6] KVM: VMX: improve usage of unrestricted guest

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2018-03-05 12:04-0800, Sean Christopherson:
> This series eliminates usage of legacy code that is obsolete when
> unrestricted guest is enabled.
> 
> Because unrestricted guest (Westmere) was introduced one generation
> later than EPT (Nehalem), KVM's initial support for EPT by necessity
> retained/introduced soon-to-be-legacy code for handling a guest with
> EPT enabled and CR0.PG/PE==0.  Some of this now-legacy code/behavior
> wasn't correctly deprecated when KVM added support for unrestricted
> guest, e.g. KVM still creates and loads identity mapped IA32 page
> tables when the guest disables paging, even though CR0.PG is cleared
> in hardware.

Great series, added to kvm/queue, thanks!

Have you checked the coverage of kvm-unit-tests?



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