mbox series

[V3,0/3] riscv: kexec: Fixup crash_save percpu and machine_kexec_mask_interrupts

Message ID 20220819025444.2121315-1-guoren@kernel.org (mailing list archive)
Headers show
Series riscv: kexec: Fixup crash_save percpu and machine_kexec_mask_interrupts | expand

Message

Guo Ren Aug. 19, 2022, 2:54 a.m. UTC 
From: Guo Ren <guoren@linux.alibaba.com>

Current riscv kexec can't crash_save percpu states and disable
interrupts properly. The patch series fix them, make kexec work correct.

Also cleanup arm64, x86 declarations in asm/smp.h.

Changlogs:

v2: https://lore.kernel.org/linux-riscv/20220817161258.748836-1-guoren@kernel.org/ 
v1: https://lore.kernel.org/linux-riscv/20220816012701.561435-1-guoren@kernel.org/

Changes in v3:
 - Fixup compile problem with !SMP, which reported by lkp@intel.com
 - Cleanup declarations in asm/smp.h
 - Add reviewed-by

Changes in v2:
 - Add Fixes tags
 - Remove extern from bool smp_crash_stop_failed(void)

Guo Ren (3):
  riscv: kexec: Disable all interrupts in kexec crash path
  riscv: kexec: Fixup crash_smp_send_stop with percpu crash_save_cpu
  arch: crash: Remove duplicate declaration in smp.h

 arch/arm64/include/asm/smp.h      |  1 -
 arch/riscv/include/asm/smp.h      |  3 ++
 arch/riscv/kernel/machine_kexec.c | 46 ++++++++++++----
 arch/riscv/kernel/smp.c           | 89 ++++++++++++++++++++++++++++++-
 arch/x86/include/asm/crash.h      |  1 -
 5 files changed, 125 insertions(+), 15 deletions(-)