Re: [kvm-unit-tests PATCH 5/5] s390x: ap: Add reset tests

[Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>]

On Thu, 30 Mar 2023 11:42:44 +0000
Janosch Frank <frankja@xxxxxxxxxxxxx> wrote:

> Test if the IRQ enablement is turned off on a reset or zeroize PQAP.
> 
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> ---

[...]

> diff --git a/s390x/ap.c b/s390x/ap.c
> index 31dcfe29..47b4f832 100644
> --- a/s390x/ap.c
> +++ b/s390x/ap.c
> @@ -341,6 +341,57 @@ static void test_pqap_aqic(void)
>  	report_prefix_pop();
>  }
>  
> +static void test_pqap_resets(void)
> +{
> +	struct ap_queue_status apqsw = {};
> +	static uint8_t not_ind_byte;
> +	struct ap_qirq_ctrl aqic = {};
> +	struct pqap_r2 r2 = {};
> +
> +	int cc;
> +
> +	report_prefix_push("pqap");
> +	report_prefix_push("rapq");
> +
> +	/* Enable IRQs which the resets will disable */
> +	aqic.ir = 1;
> +	cc = ap_pqap_aqic(apn, qn, &apqsw, aqic, (uintptr_t)&not_ind_byte);
> +	report(cc == 0 && apqsw.rc == 0, "enable");
> +
> +	do {
> +		cc = ap_pqap_tapq(apn, qn, &apqsw, &r2);
> +	} while (cc == 0 && apqsw.irq_enabled == 0);

same story here as in the previous patch, waiting for interrupts 

> +	report(apqsw.irq_enabled == 1, "IRQs enabled");
> +
> +	ap_pqap_reset(apn, qn, &apqsw);
> +	cc = ap_pqap_tapq(apn, qn, &apqsw, &r2);
> +	assert(!cc);
> +	report(apqsw.irq_enabled == 0, "IRQs have been disabled");
> +
> +	report_prefix_pop();
> +
> +	report_prefix_push("zapq");
> +
> +	/* Enable IRQs which the resets will disable */
> +	aqic.ir = 1;
> +	cc = ap_pqap_aqic(apn, qn, &apqsw, aqic, (uintptr_t)&not_ind_byte);
> +	report(cc == 0 && apqsw.rc == 0, "enable");
> +
> +	do {
> +		cc = ap_pqap_tapq(apn, qn, &apqsw, &r2);
> +	} while (cc == 0 && apqsw.irq_enabled == 0);

and here

> +	report(apqsw.irq_enabled == 1, "IRQs enabled");
> +
> +	ap_pqap_reset_zeroize(apn, qn, &apqsw);
> +	cc = ap_pqap_tapq(apn, qn, &apqsw, &r2);
> +	assert(!cc);
> +	report(apqsw.irq_enabled == 0, "IRQs have been disabled");
> +
> +	report_prefix_pop();
> +
> +	report_prefix_pop();
> +}
> +
>  int main(void)
>  {
>  	int setup_rc = ap_setup(&apn, &qn);
> @@ -362,6 +413,7 @@ int main(void)
>  		goto done;
>  	}
>  	test_pqap_aqic();
> +	test_pqap_resets();
>  
>  done:
>  	report_prefix_pop();