57b119da35
Enlightened VMCS is opt-in. The current version does not contain all fields supported by nested VMX so we must not advertise the corresponding VMX features if enlightened VMCS is enabled. Userspace is given the enlightened VMCS version supported by KVM as part of enabling KVM_CAP_HYPERV_ENLIGHTENED_VMCS. The version is to be advertised to the nested hypervisor, currently done via a cpuid leaf for Hyper-V. Suggested-by: Ladi Prosek <lprosek@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Liran Alon <liran.alon@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>