Re: [kvm-unit-tests PATCH 1/9] s390x: uv: Tolerate 0x100 query return code

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On Wed, 22 Sep 2021 07:18:03 +0000
Janosch Frank <frankja@xxxxxxxxxxxxx> wrote:

> RC 0x100 is not an error but a notice that we could have gotten more
> data from the Ultravisor if we had asked for it. So let's tolerate
> them in our tests.
> 
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> ---
>  s390x/uv-guest.c | 4 ++--
>  s390x/uv-host.c  | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/s390x/uv-guest.c b/s390x/uv-guest.c
> index f05ae4c3..e7446e03 100644
> --- a/s390x/uv-guest.c
> +++ b/s390x/uv-guest.c
> @@ -70,8 +70,8 @@ static void test_query(void)
>  	report(cc == 1 && uvcb.header.rc == UVC_RC_INV_LEN, "length");
>  
>  	uvcb.header.len = sizeof(uvcb);
> -	cc = uv_call(0, (u64)&uvcb);
> -	report(cc == 0 && uvcb.header.rc == UVC_RC_EXECUTED, "successful query");
> +	uv_call(0, (u64)&uvcb);
> +	report(uvcb.header.rc == UVC_RC_EXECUTED || uvcb.header.rc
> == 0x100, "successful query");

if you want to be even more pedantic:
	report(cc == 0 && uvcb.header.rc == UVC_RC_EXECUTED ||
		cc == 1 && uvcb.header.rc == 0x100, ... 

>  
>  	/*
>  	 * These bits have been introduced with the very first
> diff --git a/s390x/uv-host.c b/s390x/uv-host.c
> index 28035707..66a11160 100644
> --- a/s390x/uv-host.c
> +++ b/s390x/uv-host.c
> @@ -401,7 +401,7 @@ static void test_query(void)
>  
>  	uvcb_qui.header.len = sizeof(uvcb_qui);
>  	uv_call(0, (uint64_t)&uvcb_qui);
> -	report(uvcb_qui.header.rc == UVC_RC_EXECUTED, "successful query");
> +	report(uvcb_qui.header.rc == UVC_RC_EXECUTED || uvcb_qui.header.rc == 0x100, "successful query");

same here

>  
>  	for (i = 0; cmds[i].name; i++)
>  		report(uv_query_test_call(cmds[i].call_bit), "%s", cmds[i].name);




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