forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*
|
|
* 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
|