diff options
| -rw-r--r-- | hw/virtio-scsi.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c index 1f3b851f2..e607edc91 100644 --- a/hw/virtio-scsi.c +++ b/hw/virtio-scsi.c @@ -237,6 +237,34 @@ static VirtIOSCSIReq *virtio_scsi_pop_req(VirtIOSCSI *s, VirtQueue *vq) return req; } +static void virtio_scsi_save_request(QEMUFile *f, SCSIRequest *sreq) +{ + VirtIOSCSIReq *req = sreq->hba_private; + + qemu_put_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem)); +} + +static void *virtio_scsi_load_request(QEMUFile *f, SCSIRequest *sreq) +{ + SCSIBus *bus = sreq->bus; + VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus); + VirtIOSCSIReq *req; + + req = g_malloc(sizeof(*req)); + qemu_get_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem)); + virtio_scsi_parse_req(s, s->cmd_vq, req); + + scsi_req_ref(sreq); + req->sreq = sreq; + if (req->sreq->cmd.mode != SCSI_XFER_NONE) { + int req_mode = + (req->elem.in_num > 1 ? SCSI_XFER_FROM_DEV : SCSI_XFER_TO_DEV); + + assert(req->sreq->cmd.mode == req_mode); + } + return req; +} + static void virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req) { SCSIDevice *d = virtio_scsi_device_find(s, req->req.tmf->lun); @@ -518,6 +546,22 @@ static void virtio_scsi_reset(VirtIODevice *vdev) s->cdb_size = VIRTIO_SCSI_CDB_SIZE; } +/* The device does not have anything to save beyond the virtio data. + * Request data is saved with callbacks from SCSI devices. + */ +static void virtio_scsi_save(QEMUFile *f, void *opaque) +{ + VirtIOSCSI *s = opaque; + virtio_save(&s->vdev, f); +} + +static int virtio_scsi_load(QEMUFile *f, void *opaque, int version_id) +{ + VirtIOSCSI *s = opaque; + virtio_load(&s->vdev, f); + return 0; +} + static struct SCSIBusInfo virtio_scsi_scsi_info = { .tcq = true, .max_channel = VIRTIO_SCSI_MAX_CHANNEL, @@ -527,11 +571,14 @@ static struct SCSIBusInfo virtio_scsi_scsi_info = { .complete = virtio_scsi_command_complete, .cancel = virtio_scsi_request_cancelled, .get_sg_list = virtio_scsi_get_sg_list, + .save_request = virtio_scsi_save_request, + .load_request = virtio_scsi_load_request, }; VirtIODevice *virtio_scsi_init(DeviceState *dev, VirtIOSCSIConf *proxyconf) { VirtIOSCSI *s; + static int virtio_scsi_id; s = (VirtIOSCSI *)virtio_common_init("virtio-scsi", VIRTIO_ID_SCSI, sizeof(VirtIOSCSIConfig), @@ -558,7 +605,8 @@ VirtIODevice *virtio_scsi_init(DeviceState *dev, VirtIOSCSIConf *proxyconf) scsi_bus_legacy_handle_cmdline(&s->bus); } - /* TODO savevm */ + register_savevm(dev, "virtio-scsi", virtio_scsi_id++, 1, + virtio_scsi_save, virtio_scsi_load, s); return &s->vdev; } |