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