On 17/11/2014 13:00, Wanpeng Li wrote: > Sorry, maybe I didn't state my question clearly. As Avi mentioned above > "In VMX we have VPIDs, so we only need to flush if EFER changed between > two invocations of the same VPID", so there is only one VPID if the > guest is UP, my question is if there need a TLB flush when guest's EFER > has been changed? Yes, because the meaning of the page table entries has changed. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
