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
  36 typedef 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
  45 typedef 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
  70 typedef struct VirtioBusState VirtioS390BusState;
  71 typedef 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
  82 typedef struct VirtIOS390Device VirtIOS390Device;
  83
  84 typedef struct VirtIOS390DeviceClass {
  85     DeviceClass qdev;
  86     int (*init)(VirtIOS390Device *dev);
  87 } VirtIOS390DeviceClass;
  88
  89 struct 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     uint32_t host_features;
  96     VirtioBusState bus;
  97 };
  98
  99 typedef struct VirtIOS390Bus {
 100     BusState bus;
 101
 102     VirtIOS390Device *console;
 103     ram_addr_t dev_page;
 104     ram_addr_t dev_offs;
 105     ram_addr_t next_ring;
 106 } VirtIOS390Bus;
 107
 108
 109 void s390_virtio_device_update_status(VirtIOS390Device *dev);
 110
 111 VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
 112 VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
 113
 114 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 115                                              ram_addr_t mem, int *vq_num);
 116 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
 117 void s390_virtio_device_sync(VirtIOS390Device *dev);
 118 void s390_virtio_reset_idx(VirtIOS390Device *dev);
 119
 120 /* virtio-blk-s390 */
 121
 122 #define TYPE_VIRTIO_BLK_S390 "virtio-blk-s390"
 123 #define VIRTIO_BLK_S390(obj) \
 124         OBJECT_CHECK(VirtIOBlkS390, (obj), TYPE_VIRTIO_BLK_S390)
 125
 126 typedef struct VirtIOBlkS390 {
 127     VirtIOS390Device parent_obj;
 128     VirtIOBlock vdev;
 129 } VirtIOBlkS390;
 130
 131 /* virtio-scsi-s390 */
 132
 133 #define TYPE_VIRTIO_SCSI_S390 "virtio-scsi-s390"
 134 #define VIRTIO_SCSI_S390(obj) \
 135         OBJECT_CHECK(VirtIOSCSIS390, (obj), TYPE_VIRTIO_SCSI_S390)
 136
 137 typedef struct VirtIOSCSIS390 {
 138     VirtIOS390Device parent_obj;
 139     VirtIOSCSI vdev;
 140 } VirtIOSCSIS390;
 141
 142 /* virtio-serial-s390 */
 143
 144 #define TYPE_VIRTIO_SERIAL_S390 "virtio-serial-s390"
 145 #define VIRTIO_SERIAL_S390(obj) \
 146         OBJECT_CHECK(VirtIOSerialS390, (obj), TYPE_VIRTIO_SERIAL_S390)
 147
 148 typedef struct VirtIOSerialS390 {
 149     VirtIOS390Device parent_obj;
 150     VirtIOSerial vdev;
 151 } VirtIOSerialS390;
 152
 153 /* virtio-net-s390 */
 154
 155 #define TYPE_VIRTIO_NET_S390 "virtio-net-s390"
 156 #define VIRTIO_NET_S390(obj) \
 157         OBJECT_CHECK(VirtIONetS390, (obj), TYPE_VIRTIO_NET_S390)
 158
 159 typedef struct VirtIONetS390 {
 160     VirtIOS390Device parent_obj;
 161     VirtIONet vdev;
 162 } VirtIONetS390;
 163
 164 /* vhost-scsi-s390 */
 165
 166 #ifdef CONFIG_VHOST_SCSI
 167 #define TYPE_VHOST_SCSI_S390 "vhost-scsi-s390"
 168 #define VHOST_SCSI_S390(obj) \
 169         OBJECT_CHECK(VHostSCSIS390, (obj), TYPE_VHOST_SCSI_S390)
 170
 171 typedef struct VHostSCSIS390 {
 172     VirtIOS390Device parent_obj;
 173     VHostSCSI vdev;
 174 } VHostSCSIS390;
 175 #endif
 176
 177 /* virtio-rng-s390 */
 178
 179 #define TYPE_VIRTIO_RNG_S390 "virtio-rng-s390"
 180 #define VIRTIO_RNG_S390(obj) \
 181         OBJECT_CHECK(VirtIORNGS390, (obj), TYPE_VIRTIO_RNG_S390)
 182
 183 typedef struct VirtIORNGS390 {
 184     VirtIOS390Device parent_obj;
 185     VirtIORNG vdev;
 186 } VirtIORNGS390;
 187
 188 #endif