s390x/pci: enhance mpcifc_service_call
Enhance error handling for mpcifc_service_call() to propagate errors to guest by setting status codes or triggering program interrupts. Signed-off-by: NYi Min Zhao <zyimin@linux.vnet.ibm.com> Reviewed-by: NPierre Morel <pmorel@linux.vnet.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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