linux-kernel - [PATCH V3 0/3] riscv: kexec: Fixup crash_save percpu and machine_kexec_mask

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Date:   Thu, 18 Aug 2022 22:54:41 -0400
From:   guoren@...nel.org
To:     xianting.tian@...ux.alibaba.com, palmer@...belt.com,
        heiko@...ech.de, guoren@...nel.org, conor.dooley@...rochip.com
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, liaochang1@...wei.com,
        mick@....forth.gr, jszhang@...nel.org,
        Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH V3 0/3] riscv: kexec: Fixup crash_save percpu and machine_kexec_mask_interrupts

From: Guo Ren <guoren@...ux.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@...el.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(-)

-- 
2.36.1