--- /dev/null
+/*
+ * QEMU S390 virtio target
+ *
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/hw.h"
+#include "sysemu/block-backend.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-rng.h"
+#include "hw/virtio/virtio-serial.h"
+#include "hw/virtio/virtio-net.h"
+#include "hw/virtio/vhost-scsi.h"
+#include "hw/sysbus.h"
+#include "sysemu/kvm.h"
+
+#include "hw/s390x/s390-virtio-bus.h"
+#include "hw/virtio/virtio-bus.h"
+
+/* #define DEBUG_S390 */
+
+#ifdef DEBUG_S390
+#define DPRINTF(fmt, ...) \
+ do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) \
+ do { } while (0)
+#endif
+
+#define VIRTIO_S390_QUEUE_MAX 64
+
+static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
+ VirtIOS390Device *dev);
+
+static const TypeInfo s390_virtio_bus_info = {
+ .name = TYPE_S390_VIRTIO_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(VirtIOS390Bus),
+};
+
+static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
+
+/* length of VirtIO device pages */
+const hwaddr virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
+
+static void s390_virtio_bus_reset(void *opaque)
+{
+ VirtIOS390Bus *bus = opaque;
+ bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
+}
+
+void s390_virtio_reset_idx(VirtIOS390Device *dev)
+{
+ int i;
+ hwaddr idx_addr;
+ uint8_t num_vq;
+
+ num_vq = s390_virtio_device_num_vq(dev);
+ for (i = 0; i < num_vq; i++) {
+ idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
+ VIRTIO_VRING_AVAIL_IDX_OFFS;
+ address_space_stw(&address_space_memory, idx_addr, 0,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
+ virtio_queue_get_avail_size(dev->vdev, i);
+ address_space_stw(&address_space_memory, idx_addr, 0,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
+ VIRTIO_VRING_USED_IDX_OFFS;
+ address_space_stw(&address_space_memory, idx_addr, 0,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
+ virtio_queue_get_used_size(dev->vdev, i);
+ address_space_stw(&address_space_memory, idx_addr, 0,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ }
+}
+
+VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
+{
+ VirtIOS390Bus *bus;
+ BusState *_bus;
+ DeviceState *dev;
+
+ /* Create bridge device */
+ dev = qdev_create(NULL, "s390-virtio-bridge");
+ qdev_init_nofail(dev);
+
+ /* Create bus on bridge device */
+
+ _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
+ bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
+
+ bus->dev_page = *ram_size;
+ bus->dev_offs = bus->dev_page;
+ bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
+
+ /* Enable hotplugging */
+ qbus_set_hotplug_handler(_bus, dev, &error_abort);
+
+ /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
+ *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
+
+ qemu_register_reset(s390_virtio_bus_reset, bus);
+ return bus;
+}
+
+static void s390_virtio_device_init(VirtIOS390Device *dev,
+ VirtIODevice *vdev)
+{
+ VirtIOS390Bus *bus;
+ int dev_len;
+
+ bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
+ dev->vdev = vdev;
+ dev->dev_offs = bus->dev_offs;
+ dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */
+
+ dev_len = VIRTIO_DEV_OFFS_CONFIG;
+ dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
+ dev_len += dev->feat_len * 2;
+ dev_len += virtio_bus_get_vdev_config_len(&dev->bus);
+
+ bus->dev_offs += dev_len;
+
+ s390_virtio_device_sync(dev);
+ s390_virtio_reset_idx(dev);
+ if (dev->qdev.hotplugged) {
+ s390_virtio_irq(VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
+ }
+}
+
+static void s390_virtio_net_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ DeviceState *qdev = DEVICE(s390_dev);
+ VirtIONetS390 *dev = VIRTIO_NET_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ virtio_net_set_netclient_name(&dev->vdev, qdev->id,
+ object_get_typename(OBJECT(qdev)));
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_virtio_net_instance_init(Object *obj)
+{
+ VirtIONetS390 *dev = VIRTIO_NET_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_NET);
+ object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+ "bootindex", &error_abort);
+}
+
+static void s390_virtio_blk_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ VirtIOBlkS390 *dev = VIRTIO_BLK_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_virtio_blk_instance_init(Object *obj)
+{
+ VirtIOBlkS390 *dev = VIRTIO_BLK_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_BLK);
+ object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
+ &error_abort);
+ object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+ "bootindex", &error_abort);
+}
+
+static void s390_virtio_serial_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ DeviceState *qdev = DEVICE(s390_dev);
+ Error *err = NULL;
+ VirtIOS390Bus *bus;
+ char *bus_name;
+
+ bus = DO_UPCAST(VirtIOS390Bus, bus, qdev->parent_bus);
+
+ /*
+ * For command line compatibility, this sets the virtio-serial-device bus
+ * name as before.
+ */
+ if (qdev->id) {
+ bus_name = g_strdup_printf("%s.0", qdev->id);
+ virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
+ g_free(bus_name);
+ }
+
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+ bus->console = s390_dev;
+}
+
+static void s390_virtio_serial_instance_init(Object *obj)
+{
+ VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_SERIAL);
+}
+
+static void s390_virtio_scsi_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ DeviceState *qdev = DEVICE(s390_dev);
+ Error *err = NULL;
+ char *bus_name;
+
+ /*
+ * For command line compatibility, this sets the virtio-scsi-device bus
+ * name as before.
+ */
+ if (qdev->id) {
+ bus_name = g_strdup_printf("%s.0", qdev->id);
+ virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
+ g_free(bus_name);
+ }
+
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_virtio_scsi_instance_init(Object *obj)
+{
+ VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_SCSI);
+}
+
+#ifdef CONFIG_VHOST_SCSI
+static void s390_vhost_scsi_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ VHostSCSIS390 *dev = VHOST_SCSI_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_vhost_scsi_instance_init(Object *obj)
+{
+ VHostSCSIS390 *dev = VHOST_SCSI_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VHOST_SCSI);
+}
+#endif
+
+
+static void s390_virtio_rng_realize(VirtIOS390Device *s390_dev, Error **errp)
+{
+ VirtIORNGS390 *dev = VIRTIO_RNG_S390(s390_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ object_property_set_link(OBJECT(dev),
+ OBJECT(dev->vdev.conf.rng), "rng",
+ NULL);
+
+ s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_virtio_rng_instance_init(Object *obj)
+{
+ VirtIORNGS390 *dev = VIRTIO_RNG_S390(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_RNG);
+ object_property_add_alias(obj, "rng", OBJECT(&dev->vdev),
+ "rng", &error_abort);
+}
+
+static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
+{
+ ram_addr_t token_off;
+
+ token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
+ (vq * VIRTIO_VQCONFIG_LEN) +
+ VIRTIO_VQCONFIG_OFFS_TOKEN;
+
+ return address_space_ldq_be(&address_space_memory, token_off,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+}
+
+static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev = dev->vdev;
+ int num_vq;
+
+ for (num_vq = 0; num_vq < VIRTIO_S390_QUEUE_MAX; num_vq++) {
+ if (!virtio_queue_get_num(vdev, num_vq)) {
+ break;
+ }
+ }
+
+ return num_vq;
+}
+
+static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
+{
+ ram_addr_t r = bus->next_ring;
+
+ bus->next_ring += VIRTIO_RING_LEN;
+ return r;
+}
+
+void s390_virtio_device_sync(VirtIOS390Device *dev)
+{
+ VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
+ ram_addr_t cur_offs;
+ uint8_t num_vq;
+ int i;
+
+ virtio_reset(dev->vdev);
+
+ /* Sync dev space */
+ address_space_stb(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_TYPE,
+ dev->vdev->device_id,
+ MEMTXATTRS_UNSPECIFIED,
+ NULL);
+
+ address_space_stb(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ,
+ s390_virtio_device_num_vq(dev),
+ MEMTXATTRS_UNSPECIFIED,
+ NULL);
+ address_space_stb(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN,
+ dev->feat_len,
+ MEMTXATTRS_UNSPECIFIED,
+ NULL);
+
+ address_space_stb(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN,
+ dev->vdev->config_len,
+ MEMTXATTRS_UNSPECIFIED,
+ NULL);
+
+ num_vq = s390_virtio_device_num_vq(dev);
+ address_space_stb(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+
+ /* Sync virtqueues */
+ for (i = 0; i < num_vq; i++) {
+ ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
+ (i * VIRTIO_VQCONFIG_LEN);
+ ram_addr_t vring;
+
+ vring = s390_virtio_next_ring(bus);
+ virtio_queue_set_addr(dev->vdev, i, vring);
+ virtio_queue_set_vector(dev->vdev, i, i);
+ address_space_stq_be(&address_space_memory,
+ vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ address_space_stw_be(&address_space_memory,
+ vq + VIRTIO_VQCONFIG_OFFS_NUM,
+ virtio_queue_get_num(dev->vdev, i),
+ MEMTXATTRS_UNSPECIFIED,
+ NULL);
+ }
+
+ cur_offs = dev->dev_offs;
+ cur_offs += VIRTIO_DEV_OFFS_CONFIG;
+ cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
+
+ /* Sync feature bitmap */
+ address_space_stl_le(&address_space_memory, cur_offs,
+ dev->vdev->host_features,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+
+ dev->feat_offs = cur_offs + dev->feat_len;
+ cur_offs += dev->feat_len * 2;
+
+ /* Sync config space */
+ virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
+
+ cpu_physical_memory_write(cur_offs,
+ dev->vdev->config, dev->vdev->config_len);
+ cur_offs += dev->vdev->config_len;
+}
+
+void s390_virtio_device_update_status(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev = dev->vdev;
+ uint32_t features;
+
+ virtio_set_status(vdev,
+ address_space_ldub(&address_space_memory,
+ dev->dev_offs + VIRTIO_DEV_OFFS_STATUS,
+ MEMTXATTRS_UNSPECIFIED, NULL));
+
+ /* Update guest supported feature bitmap */
+
+ features = bswap32(address_space_ldl_be(&address_space_memory,
+ dev->feat_offs,
+ MEMTXATTRS_UNSPECIFIED, NULL));
+ virtio_set_features(vdev, features);
+}
+
+/* Find a device by vring address */
+VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
+ ram_addr_t mem,
+ int *vq_num)
+{
+ BusChild *kid;
+ int i;
+
+ QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
+ VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
+
+ for (i = 0; i < VIRTIO_S390_QUEUE_MAX; i++) {
+ if (!virtio_queue_get_addr(dev->vdev, i))
+ break;
+ if (virtio_queue_get_addr(dev->vdev, i) == mem) {
+ if (vq_num) {
+ *vq_num = i;
+ }
+ return dev;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+/* Find a device by device descriptor location */
+VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
+{
+ BusChild *kid;
+
+ QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
+ VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
+ if (dev->dev_offs == mem) {
+ return dev;
+ }
+ }
+
+ return NULL;
+}
+
+/* DeviceState to VirtIOS390Device. Note: used on datapath,
+ * be careful and test performance if you change this.
+ */
+static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
+{
+ return container_of(d, VirtIOS390Device, qdev);
+}
+
+/* DeviceState to VirtIOS390Device. TODO: use QOM. */
+static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
+{
+ return container_of(d, VirtIOS390Device, qdev);
+}
+
+static void virtio_s390_notify(DeviceState *d, uint16_t vector)
+{
+ VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
+ uint64_t token = s390_virtio_device_vq_token(dev, vector);
+
+ s390_virtio_irq(0, token);
+}
+
+static void virtio_s390_device_plugged(DeviceState *d, Error **errp)
+{
+ VirtIOS390Device *dev = to_virtio_s390_device(d);
+ VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
+ int n = virtio_get_num_queues(vdev);
+
+ if (n > VIRTIO_S390_QUEUE_MAX) {
+ error_setg(errp, "The nubmer of virtqueues %d "
+ "exceeds s390 limit %d", n,
+ VIRTIO_S390_QUEUE_MAX);
+ }
+}
+
+/**************** S390 Virtio Bus Device Descriptions *******************/
+
+static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->realize = s390_virtio_net_realize;
+ set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
+}
+
+static const TypeInfo s390_virtio_net = {
+ .name = TYPE_VIRTIO_NET_S390,
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIONetS390),
+ .instance_init = s390_virtio_net_instance_init,
+ .class_init = s390_virtio_net_class_init,
+};
+
+static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
+{
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->realize = s390_virtio_blk_realize;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+}
+
+static const TypeInfo s390_virtio_blk = {
+ .name = "virtio-blk-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOBlkS390),
+ .instance_init = s390_virtio_blk_instance_init,
+ .class_init = s390_virtio_blk_class_init,
+};
+
+static Property s390_virtio_serial_properties[] = {
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->realize = s390_virtio_serial_realize;
+ dc->props = s390_virtio_serial_properties;
+ set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+}
+
+static const TypeInfo s390_virtio_serial = {
+ .name = TYPE_VIRTIO_SERIAL_S390,
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOSerialS390),
+ .instance_init = s390_virtio_serial_instance_init,
+ .class_init = s390_virtio_serial_class_init,
+};
+
+static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->realize = s390_virtio_rng_realize;
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+}
+
+static const TypeInfo s390_virtio_rng = {
+ .name = TYPE_VIRTIO_RNG_S390,
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIORNGS390),
+ .instance_init = s390_virtio_rng_instance_init,
+ .class_init = s390_virtio_rng_class_init,
+};
+
+static void s390_virtio_busdev_realize(DeviceState *dev, Error **errp)
+{
+ VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
+ VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
+
+ virtio_s390_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
+
+ _info->realize(_dev, errp);
+}
+
+static void s390_virtio_busdev_reset(DeviceState *dev)
+{
+ VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
+
+ virtio_reset(_dev->vdev);
+}
+
+static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = s390_virtio_busdev_realize;
+ dc->bus_type = TYPE_S390_VIRTIO_BUS;
+ dc->reset = s390_virtio_busdev_reset;
+}
+
+static const TypeInfo virtio_s390_device_info = {
+ .name = TYPE_VIRTIO_S390_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = virtio_s390_device_class_init,
+ .class_size = sizeof(VirtIOS390DeviceClass),
+ .abstract = true,
+};
+
+static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->realize = s390_virtio_scsi_realize;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+}
+
+static const TypeInfo s390_virtio_scsi = {
+ .name = TYPE_VIRTIO_SCSI_S390,
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOSCSIS390),
+ .instance_init = s390_virtio_scsi_instance_init,
+ .class_init = s390_virtio_scsi_class_init,
+};
+
+#ifdef CONFIG_VHOST_SCSI
+static void s390_vhost_scsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->realize = s390_vhost_scsi_realize;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+}
+
+static const TypeInfo s390_vhost_scsi = {
+ .name = TYPE_VHOST_SCSI_S390,
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VHostSCSIS390),
+ .instance_init = s390_vhost_scsi_instance_init,
+ .class_init = s390_vhost_scsi_class_init,
+};
+#endif
+
+/***************** S390 Virtio Bus Bridge Device *******************/
+/* Only required to have the virtio bus as child in the system bus */
+
+static int s390_virtio_bridge_init(SysBusDevice *dev)
+{
+ /* nothing */
+ return 0;
+}
+
+static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_bridge_init;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo s390_virtio_bridge_info = {
+ .name = "s390-virtio-bridge",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(SysBusDevice),
+ .class_init = s390_virtio_bridge_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_HOTPLUG_HANDLER },
+ { }
+ }
+};
+
+/* virtio-s390-bus */
+
+static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
+ VirtIOS390Device *dev)
+{
+ DeviceState *qdev = DEVICE(dev);
+ char virtio_bus_name[] = "virtio-bus";
+
+ qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_S390_BUS,
+ qdev, virtio_bus_name);
+}
+
+static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
+{
+ VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
+ BusClass *bus_class = BUS_CLASS(klass);
+ bus_class->max_dev = 1;
+ k->notify = virtio_s390_notify;
+ k->device_plugged = virtio_s390_device_plugged;
+}
+
+static const TypeInfo virtio_s390_bus_info = {
+ .name = TYPE_VIRTIO_S390_BUS,
+ .parent = TYPE_VIRTIO_BUS,
+ .instance_size = sizeof(VirtioS390BusState),
+ .class_init = virtio_s390_bus_class_init,
+};
+
+static void s390_virtio_register_types(void)
+{
+ type_register_static(&virtio_s390_bus_info);
+ type_register_static(&s390_virtio_bus_info);
+ type_register_static(&virtio_s390_device_info);
+ type_register_static(&s390_virtio_serial);
+ type_register_static(&s390_virtio_blk);
+ type_register_static(&s390_virtio_net);
+ type_register_static(&s390_virtio_scsi);
+#ifdef CONFIG_VHOST_SCSI
+ type_register_static(&s390_vhost_scsi);
+#endif
+ type_register_static(&s390_virtio_rng);
+ type_register_static(&s390_virtio_bridge_info);
+}
+
+type_init(s390_virtio_register_types)
Code Review / kvmfornfv.git / blobdiff