Re: [PATCH kvm-unit-tests] arm64: timer: a few test improvements

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On 03/06/19 11:09, Andrew Jones wrote:
> 1) Ensure set_timer_irq_enabled() clears the pending interrupt
>    from the gic before proceeding with the next test.
> 2) Inform user we're about to wait for an interrupt - just in
>    case we never come back...
> 3) Allow the user to choose just vtimer or just ptimer tests,
>    or to reverse their order with -append 'ptimer vtimer'.
> 
> Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
> ---
>  arm/timer.c | 17 +++++++++++++++--
>  1 file changed, 15 insertions(+), 2 deletions(-)
> 
> diff --git a/arm/timer.c b/arm/timer.c
> index 275d0494083d..6f2ad1d76ab2 100644
> --- a/arm/timer.c
> +++ b/arm/timer.c
> @@ -231,6 +231,7 @@ static void test_timer(struct timer_info *info)
>  	/* Disable the timer again and prepare to take interrupts */
>  	info->write_ctl(0);
>  	set_timer_irq_enabled(info, true);
> +	report("interrupt signal no longer pending", !gic_timer_pending(info));
>  
>  	report("latency within 10 ms", test_cval_10msec(info));
>  	report("interrupt received", info->irq_received);
> @@ -242,6 +243,7 @@ static void test_timer(struct timer_info *info)
>  	info->irq_received = false;
>  	info->write_tval(read_sysreg(cntfrq_el0) / 100);	/* 10 ms */
>  	info->write_ctl(ARCH_TIMER_CTL_ENABLE);
> +	report_info("waiting for interrupt...");
>  	wfi();
>  	left = info->read_tval();
>  	report("interrupt received after TVAL/WFI", info->irq_received);
> @@ -328,12 +330,23 @@ static void print_timer_info(void)
>  
>  int main(int argc, char **argv)
>  {
> +	int i;
> +
>  	test_init();
>  
>  	print_timer_info();
>  
> -	test_vtimer();
> -	test_ptimer();
> +	if (argc == 1) {
> +		test_vtimer();
> +		test_ptimer();
> +	}
> +
> +	for (i = 1; i < argc; ++i) {
> +		if (strcmp(argv[i], "vtimer") == 0)
> +			test_vtimer();
> +		if (strcmp(argv[i], "ptimer") == 0)
> +			test_ptimer();
> +	}
>  
>  	return report_summary();
>  }
> 

Queued, thanks.

Paolo



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