[PATCH 0/6] riscv: Relocatable NOMMU kernels

[Jesse T]

On Sat, Oct 26, 2024 at 1:16 PM Samuel Holland
<samuel.holland at sifive.com> wrote:
>
> Currently, RISC-V NOMMU kernels are linked at CONFIG_PAGE_OFFSET, and
> since they are not relocatable, must be loaded at this address as well.
> CONFIG_PAGE_OFFSET is not a user-visible Kconfig option, so its value is
> not obvious, and users must patch the kernel source if they want to load
> it at a different address.
>
> Make NOMMU kernels more portable by making them relocatable by default.
> This allows a single kernel binary to work when loaded at any address.
>
>
> Samuel Holland (6):
>   riscv: Remove duplicate CONFIG_PAGE_OFFSET definition
>   riscv: Allow NOMMU kernels to access all of RAM
>   riscv: Support CONFIG_RELOCATABLE on NOMMU
>   asm-generic: Always define Elf_Rel and Elf_Rela
>   riscv: Support CONFIG_RELOCATABLE on riscv32
>   riscv: Remove CONFIG_PAGE_OFFSET
>
>  arch/riscv/Kconfig               | 10 +---
>  arch/riscv/Makefile              |  1 -
>  arch/riscv/include/asm/page.h    | 27 ++++-----
>  arch/riscv/include/asm/pgtable.h |  6 +-
>  arch/riscv/mm/init.c             | 97 ++++++++++++++++----------------
>  include/asm-generic/module.h     |  8 ---
>  6 files changed, 68 insertions(+), 81 deletions(-)
>
> --
> 2.45.1
>
>
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Any update on this?