On Mon, Sep 15, 2025 at 12:25:52AM -0600, Paul Walmsley wrote:

On Tue, 9 Sep 2025, Atish Patra wrote:

quoted

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 <redacted>

For the series:

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

I was assuming this series would go via the Risc-V arch tree so please
shout if you were expecting me to take it via drivers/perf/!

Will