Re: [PATCH v6 23/24] KVM: riscv: selftests: Add a test for counter overflow

On Wed, Apr 10, 2024 at 05:07:51PM -0700, Atish Patra wrote:

Add a test for verifying overflow interrupt. Currently, it relies on overflow support on cycle/instret events. This test works for cycle/ instret events which support sampling via hpmcounters on the platform. There are no ISA extensions to detect if a platform supports that. Thus, this test will fail on platform with virtualization but doesn't support overflow on these two events.

Reviewed-by: Anup Patel anup@brainfault.org Signed-off-by: Atish Patra atishp@rivosinc.com

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.../selftests/kvm/riscv/sbi_pmu_test.c | 113 ++++++++++++++++++ 1 file changed, 113 insertions(+)

Reviewed-by: Andrew Jones ajones@ventanamicro.com