On 18/12/2014 04:37, zhanghailiang wrote: >> set this bit. But the HV_X64_APIC_ACCESS_RECOMMENDED bit should >> probably not be set if the host supports apic-v. I havn't done any > > That is what this patch want to do ;) This would cause a guest ABI change upon migration from APICv to non-APICv hosts, so it is not possible. Perhaps we need to set bit 8 but not bit 3. 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