This series implements the migration for a TCG pseries guest running a nested KVM guest. This is just like migrating a pseries TCG guest, but with some extra state to allow a nested guest to continue to run on the destination.
Unfortunately the regular TCG migration scenario (not nested) is not fully working so I cannot be entirely sure the nested migration is correct. I have included a couple of patches for the general migration case that (I think?) improve the situation a bit, but I'm still seeing hard lockups and other issues with more than 1 vcpu. This is more of an early RFC to see if anyone spots something right away. I haven't made much progress in debugging the general TCG migration case so if anyone has any input there as well I'd appreciate it. Thanks Fabiano Rosas (4): target/ppc: TCG: Migrate tb_offset and decr spapr: TCG: Migrate spapr_cpu->prod hw/ppc: Take nested guest into account when saving timebase spapr: Add KVM-on-TCG migration support hw/ppc/ppc.c | 17 +++++++- hw/ppc/spapr.c | 19 ++++++++ hw/ppc/spapr_cpu_core.c | 77 +++++++++++++++++++++++++++++++++ include/hw/ppc/spapr_cpu_core.h | 2 +- target/ppc/machine.c | 61 ++++++++++++++++++++++++++ 5 files changed, 174 insertions(+), 2 deletions(-) -- 2.34.1
