320ce8503b
Guest and host notifiers are needed by vhost. We use ioeventfds for the guest notifiers, but need to fall back on qemu injecting interrupts for the host notifiers. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
185 lines
5.1 KiB
C
185 lines
5.1 KiB
C
/*
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* virtio ccw target definitions
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*
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* Copyright 2012 IBM Corp.
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* Author(s): Cornelia Huck <cornelia.huck@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
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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 <hw/virtio/virtio-blk.h>
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#include <hw/virtio/virtio-net.h>
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#include <hw/virtio/virtio-serial.h>
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#include <hw/virtio/virtio-scsi.h>
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#ifdef CONFIG_VHOST_SCSI
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#include <hw/virtio/vhost-scsi.h>
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#endif
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#include <hw/virtio/virtio-balloon.h>
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#include <hw/virtio/virtio-rng.h>
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#include <hw/virtio/virtio-bus.h>
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#define VIRTUAL_CSSID 0xfe
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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 TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
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#define VIRTIO_CCW_DEVICE(obj) \
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OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
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#define VIRTIO_CCW_DEVICE_CLASS(klass) \
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OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
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#define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_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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#define VIRTIO_CCW_BUS(obj) \
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OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)
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#define VIRTIO_CCW_BUS_GET_CLASS(obj) \
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OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
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#define VIRTIO_CCW_BUS_CLASS(klass) \
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OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
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typedef struct VirtioCcwDevice VirtioCcwDevice;
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typedef struct VirtIOCCWDeviceClass {
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DeviceClass parent_class;
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int (*init)(VirtioCcwDevice *dev);
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int (*exit)(VirtioCcwDevice *dev);
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} VirtIOCCWDeviceClass;
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/* Change here if we want to support more feature bits. */
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#define VIRTIO_CCW_FEATURE_SIZE 1
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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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DeviceState parent_obj;
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SubchDev *sch;
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VirtIODevice *vdev;
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char *bus_id;
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uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];
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VirtioBusState bus;
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bool ioeventfd_started;
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bool ioeventfd_disabled;
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uint32_t flags;
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/* Guest provided values: */
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hwaddr indicators;
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hwaddr indicators2;
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};
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/* virtual css bus type */
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typedef struct VirtualCssBus {
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BusState parent_obj;
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} VirtualCssBus;
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#define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"
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#define VIRTUAL_CSS_BUS(obj) \
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OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)
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/* virtio-scsi-ccw */
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#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
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#define VIRTIO_SCSI_CCW(obj) \
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OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
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typedef struct VirtIOSCSICcw {
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VirtioCcwDevice parent_obj;
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VirtIOSCSI vdev;
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} VirtIOSCSICcw;
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#ifdef CONFIG_VHOST_SCSI
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/* vhost-scsi-ccw */
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#define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
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#define VHOST_SCSI_CCW(obj) \
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OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
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typedef struct VHostSCSICcw {
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VirtioCcwDevice parent_obj;
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VHostSCSI vdev;
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} VHostSCSICcw;
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#endif
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/* virtio-blk-ccw */
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#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
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#define VIRTIO_BLK_CCW(obj) \
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OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
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typedef struct VirtIOBlkCcw {
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VirtioCcwDevice parent_obj;
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VirtIOBlock vdev;
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VirtIOBlkConf blk;
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} VirtIOBlkCcw;
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/* virtio-balloon-ccw */
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#define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
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#define VIRTIO_BALLOON_CCW(obj) \
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OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
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typedef struct VirtIOBalloonCcw {
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VirtioCcwDevice parent_obj;
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VirtIOBalloon vdev;
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} VirtIOBalloonCcw;
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/* virtio-serial-ccw */
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#define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
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#define VIRTIO_SERIAL_CCW(obj) \
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OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
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typedef struct VirtioSerialCcw {
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VirtioCcwDevice parent_obj;
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VirtIOSerial vdev;
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} VirtioSerialCcw;
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/* virtio-net-ccw */
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#define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
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#define VIRTIO_NET_CCW(obj) \
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OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
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typedef struct VirtIONetCcw {
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VirtioCcwDevice parent_obj;
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VirtIONet vdev;
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} VirtIONetCcw;
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/* virtio-rng-ccw */
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#define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
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#define VIRTIO_RNG_CCW(obj) \
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OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
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typedef struct VirtIORNGCcw {
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VirtioCcwDevice parent_obj;
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VirtIORNG vdev;
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} VirtIORNGCcw;
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VirtualCssBus *virtual_css_bus_init(void);
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void virtio_ccw_device_update_status(SubchDev *sch);
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VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
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#endif
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