[PATCH v1 0/3] RISC-V: KVM: Fix PMU counter handling issues

[SeungJu Cheon]

This series fixes three issues in the KVM RISC-V PMU implementation:

- preserve firmware counter values across stop/start;
- report failures when writing snapshot data to guest memory; and
- fix perf-backed counter accounting across read and stop.

The changes were tested with the existing KVM RISC-V SBI PMU selftests
and additional tests covering the affected stop/start, snapshot failure,
and repeated read paths.

SeungJu Cheon (3):
  RISC-V: KVM: Preserve firmware counter value across stop/start
  RISC-V: KVM: Report snapshot write failure to the guest
  RISC-V: KVM: Fix perf-backed counter accounting across stop and read

 arch/riscv/kvm/vcpu_pmu.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)


base-commit: 0a0d1d55dad570724bf8c7ea83409639cfb4be9b
-- 
2.52.0