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94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*
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* virtio ccw target definitions
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*
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* Copyright 2012,2015 IBM Corp.
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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* Pierre Morel <pmorel@linux.vnet.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
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#ifndef HW_S390X_VIRTIO_CCW_H
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#define HW_S390X_VIRTIO_CCW_H
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#include "qom/object.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/s390x/s390_flic.h"
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#include "hw/s390x/css.h"
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#include "ccw-device.h"
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#include "hw/s390x/css-bridge.h"
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#define VIRTIO_CCW_CU_TYPE 0x3832
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#define VIRTIO_CCW_CHPID_TYPE 0x32
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#define CCW_CMD_SET_VQ 0x13
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#define CCW_CMD_VDEV_RESET 0x33
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#define CCW_CMD_READ_FEAT 0x12
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#define CCW_CMD_WRITE_FEAT 0x11
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#define CCW_CMD_READ_CONF 0x22
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#define CCW_CMD_WRITE_CONF 0x21
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#define CCW_CMD_WRITE_STATUS 0x31
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#define CCW_CMD_SET_IND 0x43
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#define CCW_CMD_SET_CONF_IND 0x53
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#define CCW_CMD_READ_VQ_CONF 0x32
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#define CCW_CMD_READ_STATUS 0x72
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#define CCW_CMD_SET_IND_ADAPTER 0x73
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#define CCW_CMD_SET_VIRTIO_REV 0x83
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#define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
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OBJECT_DECLARE_TYPE(VirtioCcwDevice, VirtIOCCWDeviceClass, VIRTIO_CCW_DEVICE)
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typedef struct VirtioBusState VirtioCcwBusState;
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typedef struct VirtioBusClass VirtioCcwBusClass;
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#define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
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DECLARE_OBJ_CHECKERS(VirtioCcwBusState, VirtioCcwBusClass,
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VIRTIO_CCW_BUS, TYPE_VIRTIO_CCW_BUS)
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/*
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* modules can reference this symbol to avoid being loaded
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* into system emulators without ccw support
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*/
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extern bool have_virtio_ccw;
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struct VirtIOCCWDeviceClass {
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CCWDeviceClass parent_class;
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void (*realize)(VirtioCcwDevice *dev, Error **errp);
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void (*unrealize)(VirtioCcwDevice *dev);
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void (*parent_reset)(DeviceState *dev);
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};
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/* Performance improves when virtqueue kick processing is decoupled from the
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* vcpu thread using ioeventfd for some devices. */
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#define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1
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#define VIRTIO_CCW_FLAG_USE_IOEVENTFD (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)
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struct VirtioCcwDevice {
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CcwDevice parent_obj;
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int revision;
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uint32_t max_rev;
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VirtioBusState bus;
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uint32_t flags;
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uint8_t thinint_isc;
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AdapterRoutes routes;
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/* Guest provided values: */
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IndAddr *indicators;
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IndAddr *indicators2;
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IndAddr *summary_indicator;
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uint64_t ind_bit;
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bool force_revision_1;
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};
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/* The maximum virtio revision we support. */
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#define VIRTIO_CCW_MAX_REV 2
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static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev)
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{
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return dev->max_rev;
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}
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VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
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#endif
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