[PATCH 0/4] powerpc: Misc early boot fixes

[Michael Ellerman]

On Fri, 16 Dec 2022 21:59:26 +1000, Nicholas Piggin wrote:
> The first patch is a fix for a commit that's in powerpc next which
> is a pretty harmless dump_stack(). Except that we had some bugs with
> doing stack unwinding that early when the boot CPU is not zero so
> that ended up crashing badly.
> 
> First patch should be relatively safe and solve that problem, but
> only needed if you're testing with stress_hpt. Second patch is a
> relatively minimal fix that should close most of the large window
> where we're running with the wrong task_cpu, but I would not call
> it trivial because it could cause some weird breakage or expose
> another bug. Third patch closes the rest of the window and makes
> the paca allocation a lot better, but it has more possibility for
> regressions. Last patch is independent of the rest and should be
> quite straightforward.
> 
> [...]

Applied to powerpc/next.

[1/4] powerpc/64s: Fix stress_hpt memblock alloc alignment
      https://git.kernel.org/powerpc/c/dea18da459922d70692ae1e5736d1c760040cb07
[2/4] powerpc/64: Fix task_cpu in early boot when booting non-zero cpuid
      https://git.kernel.org/powerpc/c/9fa24404f5044967753a6cd3e5e36f57686bec6e
[3/4] powerpc/64: Move paca allocation to early_setup()
      https://git.kernel.org/powerpc/c/dc222fa7737212fe0da513e5b8937c156d02225d
[4/4] powerpc: Skip stack validation checking alternate stacks if they are not allocated
      https://git.kernel.org/powerpc/c/1ee4e35076e36724a62ba2fa29b722fb53eb68f2

cheers