Comment 2 for bug 1756254

------- Comment From <email address hidden> 2018-03-23 00:32 EDT-------
(In reply to comment #5)
> Looks like we need a SMT=off and
> /sys/module/kvm_hv/parameters/indep_threads_mode =N workaround still in
> Power9 DD2.2, on ubuntu18.04 kernel,
>
> # uname -a
> Linux ltc-bostonxx 4.15.0-12-generic #13-Ubuntu SMP Wed Mar 7 21:37:03 UTC
> 2018 ppc64le ppc64le ppc64le GNU/Linux
>
> Paul,
>
> Pls let us know which patches to be included ?

You need:

6964e6a4e489 ("KVM: PPC: Book3S HV: Do SLB load/unload with guest LPCR value loaded", 2018-01-11)

00608e1f007e ("KVM: PPC: Book3S HV: Allow HPT and radix on the same core for POWER9 v2.2", 2018-01-11)

cda4a1473313 ("KVM: PPC: Book3S HV: Fix duplication of host SLB entries", 2018-03-22)

The last one is in my kvm-ppc-fixes branch on kernel.org but not in the KVM tree or Linus's tree yet.