Re: [kvm-unit-tests PATCH] arm: pmu: Fix overflow test condition

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Hi Matthias,

On 9/29/23 23:19, Matthias Rosenfelder wrote:
> Hello,
>
> I think one of the test conditions for the KVM PMU unit test "basic_event_count" is not strong enough. It only checks whether an overflow occurred for counter #0, but it should also check that none happened for the other counter(s):
>
> report(read_sysreg(pmovsclr_el0) & 0x1,
>       "check overflow happened on #0 only");
>
> This should be "==" instead of "&".

Your change indeed makes sense to match the comment. Please resubmit
following Drew's hint and feel free to add my

Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>

Thanks

Eric
>
> Note that this test uses one more counter (#1), which must not overflow. This should also be checked, even though this would be visible through the "report_info()" a few lines above. But the latter does not mark the test failing - it is purely informational, so any test automation will not notice.
>
>
> I apologize in advance if my email program at work messes up any formatting. Please let me know and I will try to reconfigure and resend if necessary. Thank you.
>
> Best Regards,
>
> Matthias
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