This topic has a very long history. It comes from Mahesh Salgaonkar 
For v3:
In this series, I separate and change the mapping between cpu logical id and 
I hope we can acquire it for "kexec -p"

Mahesh Salgaonkar (1):
  ppc64 boot: Wait for boot cpu to show up if nr_cpus limit is about to

Pingfan Liu (2):
  powerpc, cpu: partially unbind the mapping between cpu logical id and 
       its seq in dt
  powerpc, cpu: handling the special case when boot_cpuid greater than

 arch/powerpc/include/asm/paca.h    |  3 +++
 arch/powerpc/include/asm/smp.h     |  1 +
 arch/powerpc/kernel/paca.c         | 19 ++++++++++++++-----
 arch/powerpc/kernel/prom.c         | 25 ++++++++++++++-----------
 arch/powerpc/kernel/setup-common.c | 35 +++++++++++++++++++++++++++++++++--
 5 files changed, 65 insertions(+), 18 deletions(-)


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