linux-kernel - [PATCH 0/5] Fixups to work with crash tool

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Message-Id: <20220717101323.370245-1-xianting.tian@linux.alibaba.com>
Date:   Sun, 17 Jul 2022 18:13:18 +0800
From:   Xianting Tian <xianting.tian@...ux.alibaba.com>
To:     paul.walmsley@...ive.com, palmer@...belt.com,
        aou@...s.berkeley.edu, anup@...infault.org, heiko@...ech.de,
        guoren@...nel.org, mick@....forth.gr, alexandre.ghiti@...onical.com
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        crash-utility@...hat.com, huanyi.xj@...baba-inc.com,
        heinrich.schuchardt@...onical.com, k-hagio-ab@....com,
        hschauhan@...ltrace.org,
        Xianting Tian <xianting.tian@...ux.alibaba.com>
Subject: [PATCH 0/5] Fixups to work with crash tool

I ever sent the patch 1,2 in the link:
https://patchwork.kernel.org/project/linux-riscv/patch/20220708073150.352830-2-xianting.tian@linux.alibaba.com/
https://patchwork.kernel.org/project/linux-riscv/patch/20220708073150.352830-3-xianting.tian@linux.alibaba.com/
And patch 3,4 in the link:
https://patchwork.kernel.org/project/linux-riscv/patch/20220714113300.367854-2-xianting.tian@linux.alibaba.com/
https://patchwork.kernel.org/project/linux-riscv/patch/20220714113300.367854-3-xianting.tian@linux.alibaba.com/

This patch series just put these patches together, and with a new patch 5.
these five patches are the fixups for kexec, vmcore and improvements
for vmcoreinfo and memory layout dump.

The main changes in the five patchs as below,
Patch 1: Add a fast call path of crash_kexec() as other Arch(x86, arm64) do.
Patch 2: use __smp_processor_id() instead of smp_processor_id() to cleanup
	 the console prints.
Patch 3: Add VM layout, va bits, ram base to vmcoreinfo, which can simplify
	 the development of crash tool as ARM64 already did
	 (arch/arm64/kernel/crash_core.c).
Patch 4: Add modules to virtual kernel memory layout dump.
Patch 5: Fixup to get correct kernel mode PC for vmcore

With these 5 patches(patch 3 is must), crash tool can work well to analyze
a vmcore. The patches for crash tool for RISCV64 is in the link:
https://lore.kernel.org/linux-riscv/20220717042929.370022-1-xianting.tian@linux.alibaba.com/

Xianting Tian (5):
  RISC-V: Fixup fast call of crash_kexec()
  RISC-V: use __smp_processor_id() instead of smp_processor_id()
  RISC-V: Add arch_crash_save_vmcoreinfo support
  riscv: Add modules to virtual kernel memory layout dump
  RISC-V: Fixup getting correct current pc

 arch/riscv/kernel/Makefile          |  1 +
 arch/riscv/kernel/crash_core.c      | 29 +++++++++++++++++++++++++++++
 arch/riscv/kernel/crash_save_regs.S |  2 +-
 arch/riscv/kernel/machine_kexec.c   |  2 +-
 arch/riscv/kernel/traps.c           |  4 ++++
 arch/riscv/mm/init.c                |  4 ++++
 6 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 arch/riscv/kernel/crash_core.c

-- 
2.17.1