[PATCH v8 09/22] RISC-V: Add Ssccfg/Smcdeleg ISA extension definition and parsing

Charlie Jenkins thecharlesjenkins at gmail.com
Mon Jul 20 00:21:59 PDT 2026


On Wed, 01 Jul 2026 01:46:57 -0700, Atish Patra <atish.patra at linux.dev> wrote:
> Smcdeleg extension allows the M-mode to delegate selected counters
> to S-mode so that it can access those counters and correpsonding
> hpmevent CSRs without M-mode.
> 
> Ssccfg (‘Ss’ for Privileged architecture and Supervisor-level
> extension, ‘ccfg’ for Counter Configuration) provides access to
> delegated counters and new supervisor-level state.
> 
> [...]

Reviewed-by: Charlie Jenkins <thecharlesjenkins at gmail.com>

-- 
- Charlie




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