Re: [Qemu-devel] [PATCH v1 10/11] target/s390x: use trigger_pgm_exception() in s390_cpu_handle_mmu_fault()

[David Hildenbrand]

On 30.08.2017 21:11, Thomas Huth wrote:
> On 30.08.2017 19:06, David Hildenbrand wrote:
>> This looks cleaner.
>>
>> Signed-off-by: David Hildenbrand <address@hidden>
>> ---
>>  target/s390x/excp_helper.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c
>> index 2ac36535f7..f5f5967833 100644
>> --- a/target/s390x/excp_helper.c
>> +++ b/target/s390x/excp_helper.c
>> @@ -59,8 +59,7 @@ int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
>>  {
>>      S390CPU *cpu = S390_CPU(cs);
>>  
>> -    cs->exception_index = EXCP_PGM;
>> -    cpu->env.int_pgm_code = PGM_ADDRESSING;
>> +    trigger_pgm_exception(&cpu->env, PGM_ADDRESSING, ILEN_AUTO);
>>      /* On real machines this value is dropped into LowMem.  Since this
>>         is userland, simply put this someplace that cpu_loop can find it.  */
>>      cpu->env.__excp_addr = address;
> 
> trigger_pgm_exception() additionally sets int_pgm_ilen ... I assume
> that's OK here? A comment in the patch description would be helpful.
> 

As far as I can tell, ilen is completely ignored for linux-user (see
cpu_loop() in linux-user/main.c)

Will add a comment, thanks!

>  Thomas
> 


-- 

Thanks,

David