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>
199 lines
5.2 KiB
C
199 lines
5.2 KiB
C
/*
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* SCLP
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* Event Facility definitions
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*
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* Copyright IBM, Corp. 2012
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*
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* Authors:
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* Heinz Graalfs <graalfs@de.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at your
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* option) any later version. See the COPYING file in the top-level directory.
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*
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*/
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#ifndef HW_S390_SCLP_EVENT_FACILITY_H
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#define HW_S390_SCLP_EVENT_FACILITY_H
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#include <hw/qdev.h>
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#include "qemu/thread.h"
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#include "hw/s390x/sclp.h"
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/* SCLP event types */
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#define SCLP_EVENT_OPRTNS_COMMAND 0x01
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#define SCLP_EVENT_MESSAGE 0x02
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#define SCLP_EVENT_CONFIG_MGT_DATA 0x04
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#define SCLP_EVENT_PMSGCMD 0x09
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#define SCLP_EVENT_ASCII_CONSOLE_DATA 0x1a
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#define SCLP_EVENT_SIGNAL_QUIESCE 0x1d
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/* SCLP event masks */
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#define SCLP_EVENT_MASK_SIGNAL_QUIESCE 0x00000008
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#define SCLP_EVENT_MASK_MSG_ASCII 0x00000040
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#define SCLP_EVENT_MASK_CONFIG_MGT_DATA 0x10000000
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#define SCLP_EVENT_MASK_OP_CMD 0x80000000
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#define SCLP_EVENT_MASK_MSG 0x40000000
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#define SCLP_EVENT_MASK_PMSGCMD 0x00800000
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#define SCLP_UNCONDITIONAL_READ 0x00
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#define SCLP_SELECTIVE_READ 0x01
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#define TYPE_SCLP_EVENT "s390-sclp-event-type"
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#define SCLP_EVENT(obj) \
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OBJECT_CHECK(SCLPEvent, (obj), TYPE_SCLP_EVENT)
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#define SCLP_EVENT_CLASS(klass) \
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OBJECT_CLASS_CHECK(SCLPEventClass, (klass), TYPE_SCLP_EVENT)
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#define SCLP_EVENT_GET_CLASS(obj) \
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OBJECT_GET_CLASS(SCLPEventClass, (obj), TYPE_SCLP_EVENT)
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#define TYPE_SCLP_CPU_HOTPLUG "sclp-cpu-hotplug"
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typedef struct WriteEventMask {
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SCCBHeader h;
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uint16_t _reserved;
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uint16_t mask_length;
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uint32_t cp_receive_mask;
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uint32_t cp_send_mask;
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uint32_t receive_mask;
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uint32_t send_mask;
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} QEMU_PACKED WriteEventMask;
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typedef struct EventBufferHeader {
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uint16_t length;
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uint8_t type;
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uint8_t flags;
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uint16_t _reserved;
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} QEMU_PACKED EventBufferHeader;
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typedef struct MdbHeader {
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uint16_t length;
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uint16_t type;
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uint32_t tag;
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uint32_t revision_code;
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} QEMU_PACKED MdbHeader;
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typedef struct MTO {
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uint16_t line_type_flags;
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uint8_t alarm_control;
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uint8_t _reserved[3];
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char message[];
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} QEMU_PACKED MTO;
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typedef struct GO {
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uint32_t domid;
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uint8_t hhmmss_time[8];
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uint8_t th_time[3];
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uint8_t _reserved_0;
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uint8_t dddyyyy_date[7];
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uint8_t _reserved_1;
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uint16_t general_msg_flags;
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uint8_t _reserved_2[10];
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uint8_t originating_system_name[8];
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uint8_t job_guest_name[8];
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} QEMU_PACKED GO;
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#define MESSAGE_TEXT 0x0004
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typedef struct MDBO {
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uint16_t length;
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uint16_t type;
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union {
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GO go;
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MTO mto;
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};
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} QEMU_PACKED MDBO;
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typedef struct MDB {
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MdbHeader header;
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MDBO mdbo[0];
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} QEMU_PACKED MDB;
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typedef struct SclpMsg {
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EventBufferHeader header;
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MDB mdb;
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} QEMU_PACKED SclpMsg;
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#define GDS_ID_MDSMU 0x1310
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#define GDS_ID_CPMSU 0x1212
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#define GDS_ID_TEXTCMD 0x1320
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typedef struct GdsVector {
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uint16_t length;
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uint16_t gds_id;
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} QEMU_PACKED GdsVector;
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#define GDS_KEY_SELFDEFTEXTMSG 0x31
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#define GDS_KEY_TEXTMSG 0x30
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typedef struct GdsSubvector {
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uint8_t length;
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uint8_t key;
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} QEMU_PACKED GdsSubvector;
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/* MDS Message Unit */
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typedef struct MDMSU {
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GdsVector mdmsu;
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GdsVector cpmsu;
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GdsVector text_command;
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GdsSubvector self_def_text_message;
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GdsSubvector text_message;
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} QEMU_PACKED MDMSU;
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typedef struct WriteEventData {
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SCCBHeader h;
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EventBufferHeader ebh;
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} QEMU_PACKED WriteEventData;
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typedef struct ReadEventData {
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SCCBHeader h;
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EventBufferHeader ebh;
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uint32_t mask;
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} QEMU_PACKED ReadEventData;
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typedef struct SCLPEvent {
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DeviceState qdev;
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bool event_pending;
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char *name;
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} SCLPEvent;
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typedef struct SCLPEventClass {
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DeviceClass parent_class;
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int (*init)(SCLPEvent *event);
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int (*exit)(SCLPEvent *event);
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/* get SCLP's send mask */
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unsigned int (*get_send_mask)(void);
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/* get SCLP's receive mask */
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unsigned int (*get_receive_mask)(void);
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int (*read_event_data)(SCLPEvent *event, EventBufferHeader *evt_buf_hdr,
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int *slen);
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int (*write_event_data)(SCLPEvent *event, EventBufferHeader *evt_buf_hdr);
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/* can we handle this event type? */
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bool (*can_handle_event)(uint8_t type);
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} SCLPEventClass;
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#define TYPE_SCLP_EVENT_FACILITY "s390-sclp-event-facility"
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#define EVENT_FACILITY(obj) \
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OBJECT_CHECK(SCLPEventFacility, (obj), TYPE_SCLP_EVENT_FACILITY)
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#define EVENT_FACILITY_CLASS(klass) \
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OBJECT_CLASS_CHECK(SCLPEventFacilityClass, (klass), \
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TYPE_SCLP_EVENT_FACILITY)
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#define EVENT_FACILITY_GET_CLASS(obj) \
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OBJECT_GET_CLASS(SCLPEventFacilityClass, (obj), \
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TYPE_SCLP_EVENT_FACILITY)
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typedef struct SCLPEventFacility SCLPEventFacility;
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typedef struct SCLPEventFacilityClass {
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DeviceClass parent_class;
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int (*init)(SCLPEventFacility *ef);
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void (*command_handler)(SCLPEventFacility *ef, SCCB *sccb, uint64_t code);
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bool (*event_pending)(SCLPEventFacility *ef);
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} SCLPEventFacilityClass;
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#endif
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