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 "hw/virtio/virtio-blk.h"
  23 #include "hw/virtio/virtio-net.h"
  24 #include "hw/virtio/virtio-rng.h"
  25 #include "hw/virtio/virtio-serial.h"
  26 #include "hw/virtio/virtio-scsi.h"
  27 #include "hw/virtio/virtio-bus.h"
  28 #ifdef CONFIG_VHOST_SCSI
  29 #include "hw/virtio/vhost-scsi.h"
  30 #endif
  31
  32 #define VIRTIO_DEV_OFFS_TYPE            0       /* 8 bits */
  33 #define VIRTIO_DEV_OFFS_NUM_VQ          1       /* 8 bits */
  34 #define VIRTIO_DEV_OFFS_FEATURE_LEN     2       /* 8 bits */
  35 #define VIRTIO_DEV_OFFS_CONFIG_LEN      3       /* 8 bits */
  36 #define VIRTIO_DEV_OFFS_STATUS          4       /* 8 bits */
  37 #define VIRTIO_DEV_OFFS_CONFIG          5       /* dynamic */
  38
  39 #define VIRTIO_VQCONFIG_OFFS_TOKEN      0       /* 64 bits */
  40 #define VIRTIO_VQCONFIG_OFFS_ADDRESS    8       /* 64 bits */
  41 #define VIRTIO_VQCONFIG_OFFS_NUM        16      /* 16 bits */
  42 #define VIRTIO_VQCONFIG_LEN             24
  43
  44 #define VIRTIO_RING_LEN                 (TARGET_PAGE_SIZE * 3)
  45 #define VIRTIO_VRING_AVAIL_IDX_OFFS 2
  46 #define VIRTIO_VRING_USED_IDX_OFFS 2
  47 #define S390_DEVICE_PAGES               512
  48
  49 #define VIRTIO_PARAM_MASK               0xff
  50 #define VIRTIO_PARAM_VRING_INTERRUPT    0x0
  51 #define VIRTIO_PARAM_CONFIG_CHANGED     0x1
  52 #define VIRTIO_PARAM_DEV_ADD            0x2
  53
  54 #define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
  55 #define VIRTIO_S390_DEVICE(obj) \
  56      OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
  57 #define VIRTIO_S390_DEVICE_CLASS(klass) \
  58      OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
  59 #define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
  60      OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)
  61
  62 #define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
  63 #define S390_VIRTIO_BUS(obj) \
  64      OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
  65
  66 /* virtio-s390-bus */
  67
  68 typedef struct VirtioBusState VirtioS390BusState;
  69 typedef struct VirtioBusClass VirtioS390BusClass;
  70
  71 #define TYPE_VIRTIO_S390_BUS "virtio-s390-bus"
  72 #define VIRTIO_S390_BUS(obj) \
  73         OBJECT_CHECK(VirtioS390BusState, (obj), TYPE_VIRTIO_S390_BUS)
  74 #define VIRTIO_S390_BUS_GET_CLASS(obj) \
  75         OBJECT_GET_CLASS(VirtioS390BusClass, obj, TYPE_VIRTIO_S390_BUS)
  76 #define VIRTIO_S390_BUS_CLASS(klass) \
  77         OBJECT_CLASS_CHECK(VirtioS390BusClass, klass, TYPE_VIRTIO_S390_BUS)
  78
  79
  80 typedef struct VirtIOS390Device VirtIOS390Device;
  81
  82 typedef struct VirtIOS390DeviceClass {
  83     DeviceClass qdev;
  84     int (*init)(VirtIOS390Device *dev);
  85 } VirtIOS390DeviceClass;
  86
  87 struct VirtIOS390Device {
  88     DeviceState qdev;
  89     ram_addr_t dev_offs;
  90     ram_addr_t feat_offs;
  91     uint8_t feat_len;
  92     VirtIODevice *vdev;
  93     uint32_t host_features;
  94     VirtioBusState bus;
  95 };
  96
  97 typedef struct VirtIOS390Bus {
  98     BusState bus;
  99
 100     VirtIOS390Device *console;
 101     ram_addr_t dev_page;
 102     ram_addr_t dev_offs;
 103     ram_addr_t next_ring;
 104 } VirtIOS390Bus;
 105
 106
 107 void s390_virtio_device_update_status(VirtIOS390Device *dev);
 108
 109 VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
 110 VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
 111
 112 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 113                                              ram_addr_t mem, int *vq_num);
 114 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
 115 void s390_virtio_device_sync(VirtIOS390Device *dev);
 116 void 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
 124 typedef 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
 135 typedef 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
 146 typedef 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
 157 typedef 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
 169 typedef 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
 181 typedef struct VirtIORNGS390 {
 182     VirtIOS390Device parent_obj;
 183     VirtIORNG vdev;
 184 } VirtIORNGS390;
 185
 186 #endif