Messages in this thread | | | Date | Tue, 27 Feb 2024 12:13:45 +0000 | From | Conor Dooley <> | Subject | Re: [PATCH 0/4] riscv: 64-bit NOMMU fixes and enhancements |
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On Mon, Feb 26, 2024 at 04:34:45PM -0800, Samuel Holland wrote: > This series aims to improve support for NOMMU, specifically by making it > easier to test NOMMU kernels in QEMU and on various widely-available > hardware (errata permitting). After all, everything supports Svbare... > > After applying this series, a NOMMU kernel based on defconfig (changing > only the three options below*) boots to userspace on QEMU when passed as > -kernel. > > # CONFIG_RISCV_M_MODE is not set > # CONFIG_MMU is not set > CONFIG_NONPORTABLE=y > > *if you are using LLD, you must also disable BPF_SYSCALL and KALLSYMS, > because LLD bails on out-of-range references to undefined weak symbols.
That's not new to these patches though, right? IIRC that's an existing issue.
Cheers, Conor.
> > > Samuel Holland (4): > riscv: Fix TASK_SIZE on 64-bit NOMMU > riscv: Fix loading 64-bit NOMMU kernels past the start of RAM > riscv: Remove MMU dependency from Zbb and Zicboz > riscv: Allow NOMMU kernels to run in S-mode > > arch/riscv/Kconfig | 17 ++++++++++------- > arch/riscv/include/asm/page.h | 2 +- > arch/riscv/include/asm/pgtable.h | 2 +- > arch/riscv/mm/init.c | 2 +- > 4 files changed, 13 insertions(+), 10 deletions(-) > > -- > 2.43.0 > [unhandled content-type:application/pgp-signature] | |