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

[Nick Kossifidis]

Στις 2021-04-23 06:30, Palmer Dabbelt έγραψε:
> On Mon, 05 Apr 2021 01:57:07 PDT (-0700), mick@xxxxxxxxxxxx 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.

I've sent a v4 that shouldn't have merge conflicts, addressing some 
comments from Alex as well, could you use that instead or is it too late 
?