On 20/06/2016 03:49, Haozhong Zhang wrote: > Thanks for the explanation! > > If we disable LMCE in QEMU by default (even for -cpu host), will it > still be a problem? That is, > > - pc-2.7 can continue to run on old kernels unless users explicitly > require LMCE > > - existing libvirt VM configurations can continue to work on pc-2.7 > because LMCE is not specified in those configurations and are > disabled by default (i.e. no requirement for new kernels) > > - existing QEMU configurations/scripts using pc alias can continue to > work on pc-27 for the same reason above. Yes, that would be fine. "-cpu host" can leave LMCE enabled if supported by the kernel. Paolo -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list