[PATCH 1/2] powerpc/book3s64/kexec: Clear CIABR on kexec

[Michael Ellerman]

On Mon, 7 Dec 2020 12:05:18 +1100, Jordan Niethe wrote:
> The value in CIABR persists across kexec which can lead to unintended
> results when the new kernel hits the old kernel's breakpoint. For
> example:
> 
> 0:mon> bi $loadavg_proc_show
> 0:mon> b
>    type            address
> 1 inst   c000000000519060  loadavg_proc_show+0x0/0x130
> 0:mon> x
> 
> [...]

Applied to powerpc/next.

[1/2] powerpc/book3s64/kexec: Clear CIABR on kexec
      https://git.kernel.org/powerpc/c/4bb3219837a3dcf58bce96c27db6e0cd48f3d9b2
[2/2] powerpc/powernv/idle: Restore CIABR after idle for Power9
      https://git.kernel.org/powerpc/c/250ad7a45b1e58d580decfb935fc063c4cf56f91

cheers