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From: Nick Kossifidis <mick@ics.forth.gr>
To: linux-riscv@lists.infradead.org, palmer@dabbelt.com
Cc: paul.walmsley@sifive.com, linux-kernel@vger.kernel.org,
	Nick Kossifidis <mick@ics.forth.gr>
Subject: [PATCH v4 0/5] RISC-V: Add kexec/kdump support
Date: Mon, 19 Apr 2021 03:55:34 +0300
Message-ID: <20210419005539.22729-1-mick@ics.forth.gr> (raw)

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

v4:
 * Rebase on top of "fixes" branch
 * Resolve Alex's comments

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      |  56 +++++++
 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  | 223 ++++++++++++++++++++++++++++
 arch/riscv/kernel/machine_kexec.c   | 193 ++++++++++++++++++++++++
 arch/riscv/kernel/setup.c           | 114 ++++++++------
 arch/riscv/mm/init.c                | 104 +++++++++++++
 include/uapi/linux/kexec.h          |   1 +
 11 files changed, 784 insertions(+), 46 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

-- 
2.26.2


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Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19  0:55 Nick Kossifidis [this message]
2021-04-19  0:55 ` [PATCH v4 1/5] RISC-V: Add EM_RISCV to kexec UAPI header Nick Kossifidis
2021-04-19  0:55 ` [PATCH v4 2/5] RISC-V: Add kexec support Nick Kossifidis
2021-04-19  0:55 ` [PATCH v4 3/5] RISC-V: Improve init_resources Nick Kossifidis
2021-04-19  0:55 ` [PATCH v4 4/5] RISC-V: Add kdump support Nick Kossifidis
2021-04-19  0:55 ` [PATCH v4 5/5] RISC-V: Add crash kernel support Nick Kossifidis
2021-06-15 13:19   ` Geert Uytterhoeven
2021-06-15 18:29     ` Nick Kossifidis
2021-06-15 18:48       ` Geert Uytterhoeven
2021-06-15 19:21         ` Rob Herring
2021-06-15 23:29           ` Nick Kossifidis
2021-06-16 14:55             ` Rob Herring
2021-06-16 16:30               ` Ard Biesheuvel

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