Re: [kvm-unit-tests PATCH v2 2/9] arm: pmu: Let pmu tests take a sub-test parameter

[Andrew Jones]

On Thu, Jan 30, 2020 at 12:25:03PM +0100, Eric Auger wrote:
> As we intend to introduce more PMU tests, let's add
> a sub-test parameter that will allow to categorize
> them. Existing tests are in the cycle-counter category.
> 
> Signed-off-by: Eric Auger <address@hidden>
> ---
>  arm/pmu.c         | 24 +++++++++++++++---------
>  arm/unittests.cfg |  7 ++++---
>  2 files changed, 19 insertions(+), 12 deletions(-)
> 
> diff --git a/arm/pmu.c b/arm/pmu.c
> index d5a03a6..e5e012d 100644
> --- a/arm/pmu.c
> +++ b/arm/pmu.c
> @@ -287,22 +287,28 @@ int main(int argc, char *argv[])
>  {
>       int cpi = 0;
>  
> -     if (argc > 1)
> -             cpi = atol(argv[1]);
> -
>       if (!pmu_probe()) {
>               printf("No PMU found, test skipped...\n");
>               return report_summary();
>       }
>  
> +     if (argc < 2)
> +             report_abort("no test specified");
> +
>       report_prefix_push("pmu");
>  
> -     report(check_pmcr(), "Control register");
> -     report(check_cycles_increase(),
> -            "Monotonically increasing cycle count");
> -     report(check_cpi(cpi), "Cycle/instruction ratio");
> -
> -     pmccntr64_test();
> +     if (strcmp(argv[1], "cycle-counter") == 0) {
> +             report_prefix_push(argv[1]);
> +             if (argc > 2)
> +                     cpi = atol(argv[2]);
> +             report(check_pmcr(), "Control register");
> +             report(check_cycles_increase(),
> +                    "Monotonically increasing cycle count");
> +             report(check_cpi(cpi), "Cycle/instruction ratio");
> +             pmccntr64_test();

Could put a report_prefix_pop here to balance things.

> +     } else {
> +             report_abort("Unknown sub-test '%s'", argv[1]);
> +     }
>  
>       return report_summary();
>  }
> diff --git a/arm/unittests.cfg b/arm/unittests.cfg
> index daeb5a0..79f0d7a 100644
> --- a/arm/unittests.cfg
> +++ b/arm/unittests.cfg
> @@ -61,21 +61,22 @@ file = pci-test.flat
>  groups = pci
>  
>  # Test PMU support
> -[pmu]
> +[pmu-cycle-counter]
>  file = pmu.flat
>  groups = pmu
> +extra_params = -append 'cycle-counter 0'
>  
>  # Test PMU support (TCG) with -icount IPC=1
>  #[pmu-tcg-icount-1]
>  #file = pmu.flat
> -#extra_params = -icount 0 -append '1'
> +#extra_params = -icount 0 -append 'cycle-counter 1'
>  #groups = pmu
>  #accel = tcg
>  
>  # Test PMU support (TCG) with -icount IPC=256
>  #[pmu-tcg-icount-256]
>  #file = pmu.flat
> -#extra_params = -icount 8 -append '256'
> +#extra_params = -icount 8 -append 'cycle-counter 256'
>  #groups = pmu
>  #accel = tcg
>  
> -- 
> 2.20.1
> 
>