1 /* 2 * virtio ccw vhost-user-fs implementation 3 * 4 * Copyright 2020 IBM Corp. 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or (at 7 * your option) any later version. See the COPYING file in the top-level 8 * directory. 9 */ 10 #include "qemu/osdep.h" 11 #include "hw/qdev-properties.h" 12 #include "qapi/error.h" 13 #include "hw/virtio/vhost-user-fs.h" 14 #include "virtio-ccw.h" 15 16 typedef struct VHostUserFSCcw { 17 VirtioCcwDevice parent_obj; 18 VHostUserFS vdev; 19 } VHostUserFSCcw; 20 21 #define TYPE_VHOST_USER_FS_CCW "vhost-user-fs-ccw" 22 #define VHOST_USER_FS_CCW(obj) \ 23 OBJECT_CHECK(VHostUserFSCcw, (obj), TYPE_VHOST_USER_FS_CCW) 24 25 26 static const Property vhost_user_fs_ccw_properties[] = { 27 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 28 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 29 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 30 VIRTIO_CCW_MAX_REV), 31 }; 32 33 static void vhost_user_fs_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 34 { 35 VHostUserFSCcw *dev = VHOST_USER_FS_CCW(ccw_dev); 36 DeviceState *vdev = DEVICE(&dev->vdev); 37 38 qdev_realize(vdev, BUS(&ccw_dev->bus), errp); 39 } 40 41 static void vhost_user_fs_ccw_instance_init(Object *obj) 42 { 43 VHostUserFSCcw *dev = VHOST_USER_FS_CCW(obj); 44 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 45 46 ccw_dev->force_revision_1 = true; 47 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 48 TYPE_VHOST_USER_FS); 49 } 50 51 static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data) 52 { 53 DeviceClass *dc = DEVICE_CLASS(klass); 54 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 55 56 k->realize = vhost_user_fs_ccw_realize; 57 device_class_set_props(dc, vhost_user_fs_ccw_properties); 58 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 59 } 60 61 static const TypeInfo vhost_user_fs_ccw = { 62 .name = TYPE_VHOST_USER_FS_CCW, 63 .parent = TYPE_VIRTIO_CCW_DEVICE, 64 .instance_size = sizeof(VHostUserFSCcw), 65 .instance_init = vhost_user_fs_ccw_instance_init, 66 .class_init = vhost_user_fs_ccw_class_init, 67 }; 68 69 static void vhost_user_fs_ccw_register(void) 70 { 71 type_register_static(&vhost_user_fs_ccw); 72 } 73 74 type_init(vhost_user_fs_ccw_register) 75