Re: [kvm-unit-tests PATCH 2/9] s390x: pfmf: Fix 1MB handling

Janosch Frank
2021-09-28T09:51:00Z

On 9/27/21 17:23, Thomas Huth wrote:
> On 22/09/2021 09.18, Janosch Frank wrote:
>> On everything larger than 4k pfmf will update the address in GR2 when
>> it's interrupted so we should loop on pfmf and not trust that it
>> doesn't get interrupted.
>>
>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>> ---
>> s390x/pfmf.c | 10 ++++++++--
>> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> Acked-by: Thomas Huth <thuth@redhat.com>
>

I had another discussion with the people that told me to change this and
after some starring at the documentation we found out this won't fix
anything because it's not a problem. FW will update GR2 and back off the
PSW when it has been interrupted so it effectively loops itself.

So I'm dropping this patch