[PATCH v2 0/2] riscv: Introduce support for hardware break/watchpoints

Paul Walmsley pjw at kernel.org
Thu Feb 12 16:34:00 PST 2026


Hi Himanshu,

On Tue, 6 Jan 2026, Himanshu Chauhan wrote:

> This patchset adds support of hardware breakpoints and watchpoints in RISC-V
> architecture. The framework is built on top of perf subsystem and SBI debug
> trigger extension.
> 
> Currently following features are not supported and are in works:
>  - Ptrace support
>  - Single stepping
>  - Virtualization of debug triggers
> 
> The SBI debug trigger extension proposal can be found in Chapter-19 of SBI specification:
> https://github.com/riscv-non-isa/riscv-sbi-doc/releases/download/v3.0/riscv-sbi.pdf
> 
> The Sdtrig ISA is part of RISC-V debug specification which can be found at:
> https://github.com/riscv/riscv-debug-spec

Can you fix the checkpatch issues with this series?  Please use --strict.

In the meantime, I'll add it as an experimental branch, until those get 
sorted out.


- Paul



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