LXR qemu/hw/s390x/s390-virtio-bus.h

   1/*
   2 * QEMU S390x VirtIO BUS definitions
   3 *
   4 * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19#ifndef HW_S390_VIRTIO_BUS_H
  20#define HW_S390_VIRTIO_BUS_H 1
  21
  22#include <stddef.h>
  23
  24#include "standard-headers/asm-s390/kvm_virtio.h"
  25#include "standard-headers/linux/virtio_ring.h"
  26#include "hw/virtio/virtio-blk.h"
  27#include "hw/virtio/virtio-net.h"
  28#include "hw/virtio/virtio-rng.h"
  29#include "hw/virtio/virtio-serial.h"
  30#include "hw/virtio/virtio-scsi.h"
  31#include "hw/virtio/virtio-bus.h"
  32#ifdef CONFIG_VHOST_SCSI
  33#include "hw/virtio/vhost-scsi.h"
  34#endif
  35
  36typedef struct kvm_device_desc KvmDeviceDesc;
  37
  38#define VIRTIO_DEV_OFFS_TYPE        offsetof(KvmDeviceDesc, type)
  39#define VIRTIO_DEV_OFFS_NUM_VQ      offsetof(KvmDeviceDesc, num_vq)
  40#define VIRTIO_DEV_OFFS_FEATURE_LEN offsetof(KvmDeviceDesc, feature_len)
  41#define VIRTIO_DEV_OFFS_CONFIG_LEN  offsetof(KvmDeviceDesc, config_len)
  42#define VIRTIO_DEV_OFFS_STATUS      offsetof(KvmDeviceDesc, status)
  43#define VIRTIO_DEV_OFFS_CONFIG      offsetof(KvmDeviceDesc, config)
  44
  45typedef struct kvm_vqconfig KvmVqConfig;
  46#define VIRTIO_VQCONFIG_OFFS_TOKEN   offsetof(KvmVqConfig,token)    /* 64 bit */
  47#define VIRTIO_VQCONFIG_OFFS_ADDRESS offsetof(KvmVqConfig, address) /* 64 bit */
  48#define VIRTIO_VQCONFIG_OFFS_NUM     offsetof(KvmVqConfig, num)     /* 16 bit */
  49#define VIRTIO_VQCONFIG_LEN          sizeof(KvmVqConfig)
  50
  51#define VIRTIO_RING_LEN                 (TARGET_PAGE_SIZE * 3)
  52#define VIRTIO_VRING_AVAIL_IDX_OFFS offsetof(struct vring_avail, idx)
  53#define VIRTIO_VRING_USED_IDX_OFFS  offsetof(struct vring_used, idx)
  54#define S390_DEVICE_PAGES               512
  55
  56#define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
  57#define VIRTIO_S390_DEVICE(obj) \
  58     OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
  59#define VIRTIO_S390_DEVICE_CLASS(klass) \
  60     OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
  61#define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
  62     OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)
  63
  64#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
  65#define S390_VIRTIO_BUS(obj) \
  66     OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
  67
  68/* virtio-s390-bus */
  69
  70typedef struct VirtioBusState VirtioS390BusState;
  71typedef struct VirtioBusClass VirtioS390BusClass;
  72
  73#define TYPE_VIRTIO_S390_BUS "virtio-s390-bus"
  74#define VIRTIO_S390_BUS(obj) \
  75        OBJECT_CHECK(VirtioS390BusState, (obj), TYPE_VIRTIO_S390_BUS)
  76#define VIRTIO_S390_BUS_GET_CLASS(obj) \
  77        OBJECT_GET_CLASS(VirtioS390BusClass, obj, TYPE_VIRTIO_S390_BUS)
  78#define VIRTIO_S390_BUS_CLASS(klass) \
  79        OBJECT_CLASS_CHECK(VirtioS390BusClass, klass, TYPE_VIRTIO_S390_BUS)
  80
  81
  82typedef struct VirtIOS390Device VirtIOS390Device;
  83
  84typedef struct VirtIOS390DeviceClass {
  85    DeviceClass qdev;
  86    void (*realize)(VirtIOS390Device *dev, Error **errp);
  87} VirtIOS390DeviceClass;
  88
  89struct VirtIOS390Device {
  90    DeviceState qdev;
  91    ram_addr_t dev_offs;
  92    ram_addr_t feat_offs;
  93    uint8_t feat_len;
  94    VirtIODevice *vdev;
  95    VirtioBusState bus;
  96};
  97
  98typedef struct VirtIOS390Bus {
  99    BusState bus;
 100
 101    VirtIOS390Device *console;
 102    ram_addr_t dev_page;
 103    ram_addr_t dev_offs;
 104    ram_addr_t next_ring;
 105} VirtIOS390Bus;
 106
 107
 108void s390_virtio_device_update_status(VirtIOS390Device *dev);
 109
 110VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
 111
 112VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 113                                             ram_addr_t mem, int *vq_num);
 114VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
 115void s390_virtio_device_sync(VirtIOS390Device *dev);
 116void s390_virtio_reset_idx(VirtIOS390Device *dev);
 117
 118/* virtio-blk-s390 */
 119
 120#define TYPE_VIRTIO_BLK_S390 "virtio-blk-s390"
 121#define VIRTIO_BLK_S390(obj) \
 122        OBJECT_CHECK(VirtIOBlkS390, (obj), TYPE_VIRTIO_BLK_S390)
 123
 124typedef struct VirtIOBlkS390 {
 125    VirtIOS390Device parent_obj;
 126    VirtIOBlock vdev;
 127} VirtIOBlkS390;
 128
 129/* virtio-scsi-s390 */
 130
 131#define TYPE_VIRTIO_SCSI_S390 "virtio-scsi-s390"
 132#define VIRTIO_SCSI_S390(obj) \
 133        OBJECT_CHECK(VirtIOSCSIS390, (obj), TYPE_VIRTIO_SCSI_S390)
 134
 135typedef struct VirtIOSCSIS390 {
 136    VirtIOS390Device parent_obj;
 137    VirtIOSCSI vdev;
 138} VirtIOSCSIS390;
 139
 140/* virtio-serial-s390 */
 141
 142#define TYPE_VIRTIO_SERIAL_S390 "virtio-serial-s390"
 143#define VIRTIO_SERIAL_S390(obj) \
 144        OBJECT_CHECK(VirtIOSerialS390, (obj), TYPE_VIRTIO_SERIAL_S390)
 145
 146typedef struct VirtIOSerialS390 {
 147    VirtIOS390Device parent_obj;
 148    VirtIOSerial vdev;
 149} VirtIOSerialS390;
 150
 151/* virtio-net-s390 */
 152
 153#define TYPE_VIRTIO_NET_S390 "virtio-net-s390"
 154#define VIRTIO_NET_S390(obj) \
 155        OBJECT_CHECK(VirtIONetS390, (obj), TYPE_VIRTIO_NET_S390)
 156
 157typedef struct VirtIONetS390 {
 158    VirtIOS390Device parent_obj;
 159    VirtIONet vdev;
 160} VirtIONetS390;
 161
 162/* vhost-scsi-s390 */
 163
 164#ifdef CONFIG_VHOST_SCSI
 165#define TYPE_VHOST_SCSI_S390 "vhost-scsi-s390"
 166#define VHOST_SCSI_S390(obj) \
 167        OBJECT_CHECK(VHostSCSIS390, (obj), TYPE_VHOST_SCSI_S390)
 168
 169typedef struct VHostSCSIS390 {
 170    VirtIOS390Device parent_obj;
 171    VHostSCSI vdev;
 172} VHostSCSIS390;
 173#endif
 174
 175/* virtio-rng-s390 */
 176
 177#define TYPE_VIRTIO_RNG_S390 "virtio-rng-s390"
 178#define VIRTIO_RNG_S390(obj) \
 179        OBJECT_CHECK(VirtIORNGS390, (obj), TYPE_VIRTIO_RNG_S390)
 180
 181typedef struct VirtIORNGS390 {
 182    VirtIOS390Device parent_obj;
 183    VirtIORNG vdev;
 184} VirtIORNGS390;
 185
 186#endif
 187