[PATCH v6 0/8] Add SBI v3.0 PMU enhancements

[Paul Walmsley]

On Tue, 9 Sep 2025, Atish Patra wrote:

> SBI v3.0 specification[1] added two new improvements to the PMU chaper.
> The SBI v3.0 specification is frozen and under public review phase as
> per the RISC-V International guidelines. 
> 
> 1. Added an additional get_event_info function to query event availablity
> in bulk instead of individual SBI calls for each event. This helps in
> improving the boot time.
> 
> 2. Raw event width allowed by the platform is widened to have 56 bits
> with RAW event v2 as per new clarification in the priv ISA[2].
> 
> Apart from implementing these new features, this series improves the gpa
> range check in KVM and updates the kvm SBI implementation to SBI v3.0.
> 
> The opensbi patches have been merged. This series can be found at [3].
> 
> [1] https://github.com/riscv-non-isa/riscv-sbi-doc/releases/download/v3.0-rc7/riscv-sbi.pdf 
> [2] https://github.com/riscv/riscv-isa-manual/issues/1578
> [3] https://github.com/atishp04/linux/tree/b4/pmu_event_info_v6
> 
> Signed-off-by: Atish Patra <atishp at rivosinc.com>

For the series:

Acked-by: Paul Walmsley <pjw at kernel.org>


- Paul