Re: [PATCH qemu v2] s390x: sck: load into a temporary not into in1

[Thomas Huth <thuth@redhat.com>]

On 27/01/2022 11.45, David Hildenbrand wrote:
> On 27.01.22 11:32, Janosch Frank wrote:
>> On 1/26/22 09:42, Nico Boehr wrote:
>>> We previously loaded into in1, but in1 is not filled during
>>> disassembly and hence always zero. This leads to an assertion failure:
>>>
>>>     qemu-system-s390x: /home/nrb/qemu/include/tcg/tcg.h:654: temp_idx:
>>>     Assertion `n >= 0 && n < tcg_ctx->nb_temps' failed.`
>>>
>>> Instead, use in2_la2_m64a to load from storage into in2 and pass that to
>>> the helper, which matches what we already do for SCKC.
>>>
>>> This fixes the SCK test I sent here under TCG:
>>> <https://www.spinics.net/lists/kvm/msg265169.html>
>>>
>>> Suggested-by: David Hildenbrand <david@redhat.com>
>>> Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
>>
>> @David: Was this already broken when it was implemented?
>> I.e. do we want a "Fixes: 9dc67537 ("s390x/tcg: implement SET CLOCK ")" tag?
> 
> That sounds about right.

Thanks, queued to my s390x-next branch now:

https://gitlab.com/thuth/qemu/-/commits/s390x-next/

  Thomas