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

[James R T]

On Tue, Dec 23, 2025 at 1:25 AM Andrew Jones <andrew.jones at linux.dev> wrote:
>
> 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

Hi Andrew,

No worries. Feel free to look at the series whenever you manage to
find some time to do so.

Best regards,
James Raphael Tiovalen