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authorHeinz Graalfs <graalfs@linux.vnet.ibm.com>2013-12-18 10:10:49 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-02-27 09:51:25 +0100
commit477a72a1eff40639761e103f5b7652af7746c48e (patch)
tree3c1906a3e86a83076c3908e718740897037ef373 /hw/arm
parent65e526c24e27863b2a0093e1350a8ae558be5936 (diff)
downloadqemu-477a72a1eff40639761e103f5b7652af7746c48e.tar.gz
s390x/event-facility: code restructure
Code restructure in order to simplify class hierarchy - remove S390SCLPDevice abstract base class and move function pointers into new SCLPEventFacilityClass - implement SCLPEventFacility as SysBusDevice - use define constants for instance creation strings The following ascii-art shows the class structure wrt the SCLP EventFacility before (CURRENT) and after the restructure (NEW): ---- CURRENT: "s390-sclp-events-bus" +-------------------------+ | SCLPEventsBus | |-------------------------| |BusState qbus | +-------------------------+ +-------------------------+ | SCLPEventFacility | - to be replaced by new SCLPEventFacility, |-------------------------| which will be a SysBusDevice |SCLPEventsBus sbus | |DeviceState *qdev | |unsigned int receive_mask| +-------------------------+ +-------------------------+ | S390SCLPDeviceClass | - to be replaced by new SCLPEventFacilityClass |-------------------------| |DeviceClass qdev | |*(init)() | +-------------------------+ "s390-sclp-event-facility" | instance-of | V "s390-sclp-device" - this is an abstract class +-------------------------+ | S390SCLPDevice (A)| - to be replaced by new SCLPEventFacility |-------------------------| |SysBusDevice busdev | |SCLPEventFacility *ef | | | |*(sclp_command_handler)()| - these 2 go to new SCLPEventFacilityClass |*(event_pending)() | +-------------------------+ ---- NEW: "s390-sclp-events-bus" +-------------------------+ | SCLPEventsBus | |-------------------------| |BusState qbus | +-------------------------+ +-------------------------+ | SCLPEventFacilityClass | |-------------------------| |DeviceClass parent_class | | | |*(init)() | |*(command_handler)() | |*(event_pending)() | +-------------------------+ "s390-sclp-event-facility" +-------------------------+ | SCLPEventFacility | |-------------------------| |SysBusDevice parent_class| |SCLPEventsBus sbus | |unsigned int receive_mask| +-------------------------+ Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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