2  * S390 virtio-ccw loading program
7  * your option) any later version. See the COPYING file in the top-level
15 #include "s390-arch.h"
16 #include "s390-ccw.h"
19 #include "virtio-scsi.h"
20 #include "dasd-ipl.h"
35  * Principles of Operations (SA22-7832-09) chapter 17 requires that
36  * a subsystem-identification is at 184-187 and bytes 188-191 are zero
37  * after list-directed-IPL and ccw-IPL.
42         lowcore->subchannel_id = net_schid.sch_id;  in write_subsystem_identification()
43         lowcore->subchannel_nr = net_schid.sch_no;  in write_subsystem_identification()
45         lowcore->subchannel_id = blk_schid.sch_id;  in write_subsystem_identification()
46         lowcore->subchannel_nr = blk_schid.sch_no;  in write_subsystem_identification()
48     lowcore->io_int_parm = 0;  in write_subsystem_identification()
54         lowcore->ptr_iplb = ptr2u32(&iplb);  in write_iplb_location()
77     if (r == 3 || r == -EIO) {  in is_dev_possibly_bootable()
78         return -ENODEV;  in is_dev_possibly_bootable()
87         return -EIO;  in is_dev_possibly_bootable()
92      * sure that the vdev.senseid data gets pre-initialized correctly  in is_dev_possibly_bootable()
132  * If the caller gives dev_no=-1 then the user did not specify a boot device.
209      * so we don't taint our decision-making process during a reboot.  in boot_setup()
221         vdev->scsi_device_selected = false;  in find_boot_device()
222         debug_print_int("device no. ", iplb.ccw.devno);  in find_boot_device()
223         blk_schid.ssid = iplb.ccw.ssid & 0x3;  in find_boot_device()
225         found = find_subch(iplb.ccw.devno);  in find_boot_device()
228         vdev->scsi_device_selected = true;  in find_boot_device()
229         vdev->selected_scsi_device.channel = iplb.scsi.channel;  in find_boot_device()
230         vdev->selected_scsi_device.target = iplb.scsi.target;  in find_boot_device()
231         vdev->selected_scsi_device.lun = iplb.scsi.lun;  in find_boot_device()
245     vdev->is_cdrom = false;  in virtio_setup()
248     switch (vdev->senseid.cu_model) {  in virtio_setup()
260         return -1;  in virtio_setup()
265         return -ENODEV;  in virtio_setup()
299             ret = is_dev_possibly_bootable(-1, sch_no);  in probe_boot_device()