Several SCLP features are considered to be events. Those events don't provide SCLP commands on their own, instead they are all based on Read Event Data, Write Event Data, Write Event Mask and the service interrupt. Follow-on patches will provide SCLP's Signal Quiesce (via system_powerdown) and the ASCII console. Further down the road the sclp line mode console and configuration change events (e.g. cpu hotplug) can be implemented. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
97 lines
2.4 KiB
C
97 lines
2.4 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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/* SCLP event types */
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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_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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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 send_mask;
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uint32_t receive_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 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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uint32_t event_type;
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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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/* returns the supported event type */
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int (*event_type)(void);
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} SCLPEventClass;
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#endif
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