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由 Vitaly Kuznetsov 提交于
MMU re-initialization is expensive, in particular, update_permission_bitmask() and update_pkru_bitmask() are. Cache the data used to setup shadow EPT MMU and avoid full re-init when it is unchanged. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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