linux-kernel - Re: [PATCH v3 0/5] RISC-V: Add kexec/kdump support

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Message-ID: <mhng-4f2d27cc-6dc2-4d3d-ae61-5681b15372b7@palmerdabbelt-glaptop>
Date:   Thu, 22 Apr 2021 20:30:50 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     mick@....forth.gr
CC:     linux-riscv@...ts.infradead.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        linux-kernel@...r.kernel.org, mick@....forth.gr
Subject:     Re: [PATCH v3 0/5] RISC-V: Add kexec/kdump support

On Mon, 05 Apr 2021 01:57:07 PDT (-0700), mick@....forth.gr wrote:
> This patch series adds kexec/kdump and crash kernel
> support on RISC-V. For testing the patches a patched
> version of kexec-tools is needed (still a work in
> progress) which can be found at:
>
> https://riscv.ics.forth.gr/kexec-tools-patched.tar.xz
>
> v3:
>  * Rebase on newer kernel tree
>  * Minor cleanups
>  * Split UAPI changes to a separate patch
>  * Improve / cleanup init_resources
>  * Resolve Palmer's comments
>
> v2:
>  * Rebase on newer kernel tree
>  * Minor cleanups
>  * Properly populate the ioresources tre, so that it
>    can be used later on for implementing strict /dev/mem
>  * Use linux,usable-memory on /memory instead of a new binding
>  * USe a reserved-memory node for ELF core header
>
> Nick Kossifidis (5):
>   RISC-V: Add EM_RISCV to kexec UAPI header
>   RISC-V: Add kexec support
>   RISC-V: Improve init_resources
>   RISC-V: Add kdump support
>   RISC-V: Add crash kernel support
>
>  arch/riscv/Kconfig                  |  25 ++++
>  arch/riscv/include/asm/elf.h        |   6 +
>  arch/riscv/include/asm/kexec.h      |  54 +++++++
>  arch/riscv/kernel/Makefile          |   6 +
>  arch/riscv/kernel/crash_dump.c      |  46 ++++++
>  arch/riscv/kernel/crash_save_regs.S |  56 +++++++
>  arch/riscv/kernel/kexec_relocate.S  | 222 ++++++++++++++++++++++++++++
>  arch/riscv/kernel/machine_kexec.c   | 193 ++++++++++++++++++++++++
>  arch/riscv/kernel/setup.c           | 113 ++++++++------
>  arch/riscv/mm/init.c                | 110 ++++++++++++++
>  include/uapi/linux/kexec.h          |   1 +
>  11 files changed, 787 insertions(+), 45 deletions(-)
>  create mode 100644 arch/riscv/include/asm/kexec.h
>  create mode 100644 arch/riscv/kernel/crash_dump.c
>  create mode 100644 arch/riscv/kernel/crash_save_regs.S
>  create mode 100644 arch/riscv/kernel/kexec_relocate.S
>  create mode 100644 arch/riscv/kernel/machine_kexec.c

Thanks.  There were some minor issues and some merge conflicts, I put 
this on for-next with some fixups.