> However, coherence could be made host-type-independent by the host > mapping and unampping pages, so that each page is only mapped into one > guest (or guest CPU) at a time. Just like some clustering filesystems > do to maintain coherence. You're assuming that a TLB flush implies a write barrier, and a TLB miss implies a read barrier. I'd be surprised if this were true in general. Paul -- 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