[PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

[HATAYAMA Daisuke]

This is the patch series to address the issue that kdump 2nd kernel
now fails to wake up multiple CPUs.

This is based on 3.11-rc7.

I tested this patch series on x86. I used 2 cpus by specifying
nr_cpus=2 for the 2nd kernel. I checked both ACPI MADT and MP table
case; the former is default on my system and for the latter I did
acpi=off. I crashed the system both on BSP and AP by taskset -c {0,1}
sh -c "echo c > /proc/sysrq-trigger".

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HATAYAMA Daisuke (2):
      x86, apic: Add boot_cpu_is_bsp() to check if boot cpu is BSP
      x86, apic: Disable BSP if boot cpu is AP


 arch/x86/include/asm/mpspec.h |    5 ++++-
 arch/x86/kernel/acpi/boot.c   |   11 ++++++++++-
 arch/x86/kernel/apic/apic.c   |   32 +++++++++++++++++++++++++++++++-
 arch/x86/kernel/devicetree.c  |    1 +
 arch/x86/kernel/mpparse.c     |   15 +++++++++++++--
 arch/x86/kernel/setup.c       |    2 ++
 arch/x86/platform/sfi/sfi.c   |    2 +-
 7 files changed, 62 insertions(+), 6 deletions(-)

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Thanks.
HATAYAMA, Daisuke