On 09/22/2017 01:27 PM, Christian Borntraeger wrote: > On 09/22/2017 10:38 AM, Christian Borntraeger wrote: >> Conny, this seem to work on KVM (needs more testing and review). >> Can you check what happens with TCG? >> >> Patch 1 is the known base patch, >> Patch 2 fixes the ais detection to be based on the flic interfaces >> Patch 3 disables ais for all compat machines <= 2.10 >> >> >> >> Christian Borntraeger (3): >> s390x/ais: disable ais facility as it is broken >> s390x/ais: enable ais when migration is available >> s390x/ais: disable ais for compat machines >> >> hw/intc/s390_flic.c | 11 +++++++++-- >> hw/intc/s390_flic_kvm.c | 10 +++++++++- >> hw/s390x/s390-virtio-ccw.c | 18 ++++++++++++++++-- >> include/hw/s390x/s390-virtio-ccw.h | 3 +++ >> include/hw/s390x/s390_flic.h | 1 + >> target/s390x/cpu_models.c | 6 ++++++ >> target/s390x/kvm.c | 3 +-- >> 7 files changed, 45 insertions(+), 7 deletions(-) >> > > FWIW, with patch 1 backported to 2.10 and patches 1,2,3 on top of current > master (as 211) > I started some crossmigration test and successfully tested > the following combinations with KVM and -cpu host on an 4.13 kernel
This was on the same host migration in a file and back from a file. On the same host kenrel 4.11.12 (no AIS support in KVM at all) and 4.12.14 (AIS support, but no migration) also survived the test matrix for migration into/from file.
