Re: [kvm-unit-tests PATCH] s390x: Fix stsi unaligned test and add selector tests

[Janosch Frank <frankja@linux.ibm.com>]

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On 9/23/19 10:10 AM, Thomas Huth wrote:
> On 20/09/2019 10.10, David Hildenbrand wrote:
>> On 20.09.19 09:50, Janosch Frank wrote:
>>> Alignment and selectors test order is not specified and so, if you
>>> have an unaligned address and invalid selectors it's up to the
>>> hypervisor to decide which error is presented.
>>>
>>> Let's add valid selectors to the unaligned test and add selector
>>> tests.
>>>
>>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>>> ---
>>>  s390x/stsi.c | 4 +++-
>>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/s390x/stsi.c b/s390x/stsi.c
>>> index 7232cb0..c5bd0a2 100644
>>> --- a/s390x/stsi.c
>>> +++ b/s390x/stsi.c
>>> @@ -35,7 +35,7 @@ static void test_specs(void)
>>>  
>>>  	report_prefix_push("unaligned");
>>>  	expect_pgm_int();
>>> -	stsi(pagebuf + 42, 1, 0, 0);
>>> +	stsi(pagebuf + 42, 1, 1, 1);
>>>  	check_pgm_int_code(PGM_INT_CODE_SPECIFICATION);
>>>  	report_prefix_pop();
>>>  
>>> @@ -71,6 +71,8 @@ static inline unsigned long stsi_get_fc(void *addr)
>>>  static void test_fc(void)
>>>  {
>>>  	report("invalid fc",  stsi(pagebuf, 7, 0, 0) == 3);
> 
> While you're at it, wouldn't it be better to use "(pagebuf, 7, 1, 1)" here?

The selectors depend on the command, so they need to be checked after
the command. I don't think it would make much sense to change the zeroes
here.

> 
>  Thomas
> 
> 
>>> +	report("invalid selector 1", stsi(pagebuf, 1, 0, 1) == 3);
>>> +	report("invalid selector 2", stsi(pagebuf, 1, 1, 0) == 3);
>>>  	report("query fc >= 2",  stsi_get_fc(pagebuf) >= 2);
>>>  }
>>>  
>>>
>>
>> Acked-by: David Hildenbrand <david@redhat.com>
>>
> 



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