C++ (Cpp) s390_ipl_set_loadparm Examples

Example #1

File: ipl.c Project: nikunjad/qemu

static bool s390_gen_initial_iplb(S390IPLState *ipl)
{
    DeviceState *dev_st;

    dev_st = get_boot_device(0);
    if (dev_st) {
        VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
            object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
                TYPE_VIRTIO_CCW_DEVICE);
        SCSIDevice *sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
                                                            TYPE_SCSI_DEVICE);
        VirtIONet *vn = (VirtIONet *) object_dynamic_cast(OBJECT(dev_st),
                                                          TYPE_VIRTIO_NET);

        if (vn) {
            ipl->netboot = true;
        }
        if (virtio_ccw_dev) {
            CcwDevice *ccw_dev = CCW_DEVICE(virtio_ccw_dev);

            ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
            ipl->iplb.blk0_len =
                cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
            ipl->iplb.pbt = S390_IPL_TYPE_CCW;
            ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
            ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
        } else if (sd) {
            SCSIBus *bus = scsi_bus_from_device(sd);
            VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
            VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, vdev);
            CcwDevice *ccw_dev;

            ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
                                                       TYPE_CCW_DEVICE);
            if (!ccw_dev) {       /* It might be a PCI device instead */
                return false;
            }

            ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
            ipl->iplb.blk0_len =
                cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
            ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI;
            ipl->iplb.scsi.lun = cpu_to_be32(sd->lun);
            ipl->iplb.scsi.target = cpu_to_be16(sd->id);
            ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
            ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
            ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
        } else {
            return false; /* unknown device */
        }

        if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
            ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID;
        }
        return true;
    }

    return false;
}

Example #2

File: ipl.c Project: bear987978897/qemu

static bool s390_gen_initial_iplb(S390IPLState *ipl)
{
    DeviceState *dev_st;
    CcwDevice *ccw_dev = NULL;

    dev_st = get_boot_device(0);
    if (dev_st) {
        ccw_dev = s390_get_ccw_device(dev_st);
    }

    /*
     * Currently allow IPL only from CCW devices.
     */
    if (ccw_dev) {
        SCSIDevice *sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
                                                            TYPE_SCSI_DEVICE);

        if (sd) {
            ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
            ipl->iplb.blk0_len =
                cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
            ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI;
            ipl->iplb.scsi.lun = cpu_to_be32(sd->lun);
            ipl->iplb.scsi.target = cpu_to_be16(sd->id);
            ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
            ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
            ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
        } else {
            VirtIONet *vn = (VirtIONet *) object_dynamic_cast(OBJECT(dev_st),
                                                              TYPE_VIRTIO_NET);

            ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
            ipl->iplb.blk0_len =
                cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
            ipl->iplb.pbt = S390_IPL_TYPE_CCW;
            ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
            ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;

            if (vn) {
                ipl->netboot = true;
            }
        }

        if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
            ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID;
        }

        return true;
    }

    return false;
}