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Christian Borntraeger authored
In LPAR we will only get an intercept for FC==3 for the PQAP instruction. Running nested under z/VM can result in other intercepts as well as ECA_APIE is an effective bit: If one hypervisor layer has turned this bit off, the end result will be that we will get intercepts for all function codes. Usually the first one will be a query like PQAP(QCI). So the WARN_ON_ONCE is not right. Let us simply remove it. Cc: Pierre Morel <pmorel@linux.ibm.com> Cc: Tony Krowiak <akrowiak@linux.ibm.com> Cc: stable@vger.kernel.org # v5.3+ Fixes: e5282de9 ("s390: ap: kvm: add PQAP interception for AQIC") Link: https://lore.kernel.org/kvm/20200505083515.2720-1-borntraeger@de.ibm.comReported-by:
Qian Cai <cailca@icloud.com> Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by:
David Hildenbrand <david@redhat.com> Reviewed-by:
Cornelia Huck <cohuck@redhat.com> Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com>
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