Re: [kvm-unit-tests PATCH v3 1/1] s390x: verify EQBS/SQBS is unavailable

[Claudio Imbrenda <imbrenda@linux.ibm.com>]

On Wed,  3 Aug 2022 15:58:51 +0200
Nico Boehr <nrb@linux.ibm.com> wrote:

> QEMU doesn't provide EQBS/SQBS instructions, so we should check they
> result in an exception.
> 
> Signed-off-by: Nico Boehr <nrb@linux.ibm.com>

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>

> ---
>  s390x/intercept.c | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/s390x/intercept.c b/s390x/intercept.c
> index 9e826b6c79ad..48eb2d22a2cc 100644
> --- a/s390x/intercept.c
> +++ b/s390x/intercept.c
> @@ -197,6 +197,34 @@ static void test_diag318(void)
>  
>  }
>  
> +static void test_qbs(void)
> +{
> +	report_prefix_push("qbs");
> +	if (!host_is_qemu()) {
> +		report_skip("QEMU-only test");
> +		report_prefix_pop();
> +		return;
> +	}
> +
> +	report_prefix_push("sqbs");
> +	expect_pgm_int();
> +	asm volatile(
> +		"	.insn   rsy,0xeb000000008a,0,0,0(0)\n"
> +		: : : "memory", "cc");
> +	check_pgm_int_code(PGM_INT_CODE_OPERATION);
> +	report_prefix_pop();
> +
> +	report_prefix_push("eqbs");
> +	expect_pgm_int();
> +	asm volatile(
> +		"	.insn   rrf,0xb99c0000,0,0,0,0\n"
> +		: : : "memory", "cc");
> +	check_pgm_int_code(PGM_INT_CODE_OPERATION);
> +	report_prefix_pop();
> +
> +	report_prefix_pop();
> +}
> +
>  struct {
>  	const char *name;
>  	void (*func)(void);
> @@ -208,6 +236,7 @@ struct {
>  	{ "stidp", test_stidp, false },
>  	{ "testblock", test_testblock, false },
>  	{ "diag318", test_diag318, false },
> +	{ "qbs", test_qbs, false },
>  	{ NULL, NULL, false }
>  };
>