Re: [kvm-unit-tests PATCH 2/2] s390x: diag10: Check page clear

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

On Wed, 28 May 2025 09:13:50 +0000
Janosch Frank <frankja@linux.ibm.com> wrote:

> We should get a new page after we discarded the page.
> So let's check for that.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

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

> ---
>  s390x/diag10.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/s390x/diag10.c b/s390x/diag10.c
> index 00725f58..b68481ad 100644
> --- a/s390x/diag10.c
> +++ b/s390x/diag10.c
> @@ -94,6 +94,16 @@ static void test_priv(void)
>  	report_prefix_pop();
>  }
>  
> +static void test_content(void)
> +{
> +	report_prefix_push("content");
> +	memset((void *)page0, 0x42, PAGE_SIZE);
> +	memset((void *)page1, 0, PAGE_SIZE);
> +	diag10(page0, page0);
> +	report(!memcmp((void *)page0, (void *)page1, PAGE_SIZE), "Page cleared");
> +	report_prefix_pop();
> +}
> +
>  int main(void)
>  {
>  	report_prefix_push("diag10");
> @@ -110,6 +120,7 @@ int main(void)
>  	test_prefix();
>  	test_params();
>  	test_priv();
> +	test_content();
>  
>  out:
>  	report_prefix_pop();