Comment 10 for bug 1760099

The Artful 4.13 kernel has already received some of these fixes in 4.13.0-43.48 and the same is true for the Trusty 3.13 kernel in 3.13.0-151.201.

They contain these patches:

    - powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags
    - powerpc: Add security feature flags for Spectre/Meltdown
    - powerpc/pseries: Set or clear security feature flags
    - powerpc/powernv: Set or clear security feature flags
    - powerpc/powernv: Use the security flags in pnv_setup_rfi_flush()
    - powerpc/pseries: Use the security flags in pseries_setup_rfi_flush()

The missing commits in both kernels are:

  [v2,10/10] powerpc/64s: Wire up cpu_show_spectre_v2()
  [v2,09/10] powerpc/64s: Wire up cpu_show_spectre_v1()
  [v2,06/10] powerpc/64s: Enhance the information in cpu_show_meltdown()
  [v2,05/10] powerpc/64s: Move cpu_show_meltdown()