void *virtio_blk_init(PCIBus *bus, BlockDriverState *bs) { VirtIOBlock *s; int cylinders, heads, secs; static int virtio_blk_id; s = (VirtIOBlock *)virtio_init_pci(bus, "virtio-blk", PCI_VENDOR_ID_REDHAT_QUMRANET, PCI_DEVICE_ID_VIRTIO_BLOCK, PCI_VENDOR_ID_REDHAT_QUMRANET, VIRTIO_ID_BLOCK, PCI_CLASS_STORAGE_OTHER, 0x00, sizeof(struct virtio_blk_config), sizeof(VirtIOBlock)); if (!s) return NULL; s->vdev.get_config = virtio_blk_update_config; s->vdev.get_features = virtio_blk_get_features; s->vdev.reset = virtio_blk_reset; s->bs = bs; s->rq = NULL; bs->devfn = s->vdev.pci_dev.devfn; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); bdrv_set_geometry_hint(s->bs, cylinders, heads, secs); s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output); qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s); register_savevm("virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); return s; }
VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf) { VirtIOBlock *s; int cylinders, heads, secs; static int virtio_blk_id; s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config), sizeof(VirtIOBlock)); s->vdev.get_config = virtio_blk_update_config; s->vdev.get_features = virtio_blk_get_features; s->vdev.reset = virtio_blk_reset; s->bs = conf->dinfo->bdrv; s->conf = conf; s->rq = NULL; s->sector_mask = (s->conf->logical_block_size / BDRV_SECTOR_SIZE) - 1; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output); qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s); register_savevm("virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); return &s->vdev; }
VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf, char **serial) { VirtIOBlock *s; int cylinders, heads, secs; static int virtio_blk_id; DriveInfo *dinfo; if (!conf->bs) { error_report("virtio-blk-pci: drive property not set"); return NULL; } if (!bdrv_is_inserted(conf->bs)) { error_report("Device needs media, but drive is empty"); return NULL; } if (!*serial) { /* try to fall back to value set with legacy -drive serial=... */ dinfo = drive_get_by_blockdev(conf->bs); if (*dinfo->serial) { *serial = strdup(dinfo->serial); } } s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config), sizeof(VirtIOBlock)); s->vdev.get_config = virtio_blk_update_config; s->vdev.get_features = virtio_blk_get_features; s->vdev.reset = virtio_blk_reset; s->bs = conf->bs; s->conf = conf; s->serial = *serial; s->rq = NULL; s->sector_mask = (s->conf->logical_block_size / BDRV_SECTOR_SIZE) - 1; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output); qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s); s->qdev = dev; register_savevm(dev, "virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); bdrv_set_removable(s->bs, 0); bdrv_set_change_cb(s->bs, virtio_blk_change_cb, s); s->bs->buffer_alignment = conf->logical_block_size; add_boot_device_path(conf->bootindex, dev, "/disk@0,0"); return &s->vdev; }
VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf) { VirtIOBlock *s; int cylinders, heads, secs; static int virtio_blk_id; DriveInfo *dinfo; if (!conf->bs) { error_report("virtio-blk-pci: drive property not set"); return NULL; } if (!bdrv_is_inserted(conf->bs)) { error_report("Device needs media, but drive is empty"); return NULL; } s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config), sizeof(VirtIOBlock)); s->vdev.get_config = virtio_blk_update_config; s->vdev.get_features = virtio_blk_get_features; s->vdev.reset = virtio_blk_reset; s->bs = conf->bs; s->conf = conf; s->rq = NULL; s->sector_mask = (s->conf->logical_block_size / BDRV_SECTOR_SIZE) - 1; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); /* NB: per existing s/n string convention the string is terminated * by '\0' only when less than sizeof (s->sn) */ dinfo = drive_get_by_blockdev(s->bs); strncpy(s->sn, dinfo->serial, sizeof (s->sn)); s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output); qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s); s->qdev = dev; register_savevm(dev, "virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); bdrv_set_removable(s->bs, 0); s->bs->buffer_alignment = conf->logical_block_size; add_boot_device_path(conf->bootindex, dev, "/disk@0,0"); return &s->vdev; }
VirtIODevice *virtio_blk_init(DeviceState *dev, VirtIOBlkConf *blk) { VirtIOBlock *s; int cylinders, heads, secs; static int virtio_blk_id; DriveInfo *dinfo; if (!blk->conf.bs) { error_report("drive property not set"); return NULL; } if (!bdrv_is_inserted(blk->conf.bs)) { error_report("Device needs media, but drive is empty"); return NULL; } if (!blk->serial) { /* try to fall back to value set with legacy -drive serial=... */ dinfo = drive_get_by_blockdev(blk->conf.bs); if (*dinfo->serial) { blk->serial = strdup(dinfo->serial); } } s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config), sizeof(VirtIOBlock)); s->vdev.get_config = virtio_blk_update_config; s->vdev.get_features = virtio_blk_get_features; #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE s->vdev.set_status = virtio_blk_set_status; #endif s->vdev.reset = virtio_blk_reset; s->bs = blk->conf.bs; s->conf = &blk->conf; s->blk = blk; s->rq = NULL; s->sector_mask = (s->conf->logical_block_size / 512) - 1; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); bdrv_set_geometry_hint(s->bs, cylinders, heads, secs); s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output); #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE if (!virtio_blk_data_plane_create(&s->vdev, blk, &s->dataplane)) { virtio_cleanup(&s->vdev); return NULL; } #endif s->change = qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s); s->qdev = dev; register_savevm(dev, "virtio-blk", virtio_blk_id++, 2, virtio_blk_save, virtio_blk_load, s); #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE if (s->dataplane) { register_device_unmigratable(dev, "virtio-blk", s); } #endif bdrv_set_dev_ops(s->bs, &virtio_block_ops, s); s->bs->buffer_alignment = s->conf->logical_block_size; bdrv_iostatus_enable(s->bs); add_boot_device_path(s->conf->bootindex, dev, "/disk@0,0"); return &s->vdev; }