> >> As of March 2009[1] Intel guarantees that memory reads occur in order > >> (they may only be reordered relative to writes). It appears AMD do not > >> provide this guarantee, which could be an interesting problem for > >> heterogeneous migration.. > > > > Interesting, but what ordering would cause problems that AMD would do > > but Intel wouldn't? Wouldn't that ordering cause the same problems > > for POSIX shared memory in general (regardless of Qemu) on AMD? > > If some code was written for the Intel guarantees it would break if > migrated to AMD. Of course, it would also break if run on AMD in the > first place.
Right. This is independent of shared memory, and is a case where reporting an Intel CPUID on and AMD host might get you into trouble. Paul -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
