[kvm-unit-tests PATCH 0/4] riscv: sbi: Add support to test PMU extension

[Andrew Jones]

On Sat, Dec 13, 2025 at 11:08:44PM +0800, James Raphael Tiovalen wrote:
> This patch series adds support for testing most of the SBI PMU
> extension functions. The functions related to shared memory
> (FID #7 and #8) are not tested yet.
> 
> The first 3 patches add the required support for SBI PMU and some
> helper functions, while the last patch adds the actual tests.
> 
> James Raphael Tiovalen (4):
>   lib: riscv: Add SBI PMU CSRs and enums
>   lib: riscv: Add SBI PMU support
>   lib: riscv: Add SBI PMU helper functions
>   riscv: sbi: Add tests for PMU extension
> 
>  riscv/Makefile      |   2 +
>  lib/riscv/asm/csr.h |  31 +++
>  lib/riscv/asm/pmu.h | 167 ++++++++++++++++
>  lib/riscv/asm/sbi.h | 104 ++++++++++
>  lib/riscv/pmu.c     | 169 ++++++++++++++++
>  lib/riscv/sbi.c     |  73 +++++++
>  riscv/sbi-tests.h   |   1 +
>  riscv/sbi-pmu.c     | 461 ++++++++++++++++++++++++++++++++++++++++++++
>  riscv/sbi.c         |   2 +
>  9 files changed, 1010 insertions(+)
>  create mode 100644 lib/riscv/asm/pmu.h
>  create mode 100644 lib/riscv/pmu.c
>  create mode 100644 riscv/sbi-pmu.c
> 
> --
> 2.43.0
>

Hi James,

Thanks for posting this. I'll look at it as soon as possible, but I'm
juggling some other stuff right now and also plan to be on vacation for
a week starting tomorrow.

Thanks,
drew