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15#include "qemu/osdep.h"
16#include "qemu-common.h"
17#include "qemu/datadir.h"
18#include "qapi/error.h"
19#include "sysemu/reset.h"
20#include "sysemu/runstate.h"
21#include "sysemu/tcg.h"
22#include "elf.h"
23#include "hw/loader.h"
24#include "hw/qdev-properties.h"
25#include "hw/boards.h"
26#include "hw/s390x/virtio-ccw.h"
27#include "hw/s390x/vfio-ccw.h"
28#include "hw/s390x/css.h"
29#include "hw/s390x/ebcdic.h"
30#include "hw/s390x/pv.h"
31#include "ipl.h"
32#include "qemu/error-report.h"
33#include "qemu/config-file.h"
34#include "qemu/cutils.h"
35#include "qemu/option.h"
36#include "exec/exec-all.h"
37
38#define KERN_IMAGE_START 0x010000UL
39#define LINUX_MAGIC_ADDR 0x010008UL
40#define KERN_PARM_AREA 0x010480UL
41#define INITRD_START 0x800000UL
42#define INITRD_PARM_START 0x010408UL
43#define PARMFILE_START 0x001000UL
44#define ZIPL_IMAGE_START 0x009000UL
45#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
46
47static bool iplb_extended_needed(void *opaque)
48{
49 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL));
50
51 return ipl->iplbext_migration;
52}
53
54static const VMStateDescription vmstate_iplb_extended = {
55 .name = "ipl/iplb_extended",
56 .version_id = 0,
57 .minimum_version_id = 0,
58 .needed = iplb_extended_needed,
59 .fields = (VMStateField[]) {
60 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200),
61 VMSTATE_END_OF_LIST()
62 }
63};
64
65static const VMStateDescription vmstate_iplb = {
66 .name = "ipl/iplb",
67 .version_id = 0,
68 .minimum_version_id = 0,
69 .fields = (VMStateField[]) {
70 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110),
71 VMSTATE_UINT16(devno, IplParameterBlock),
72 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88),
73 VMSTATE_END_OF_LIST()
74 },
75 .subsections = (const VMStateDescription*[]) {
76 &vmstate_iplb_extended,
77 NULL
78 }
79};
80
81static const VMStateDescription vmstate_ipl = {
82 .name = "ipl",
83 .version_id = 0,
84 .minimum_version_id = 0,
85 .fields = (VMStateField[]) {
86 VMSTATE_UINT64(compat_start_addr, S390IPLState),
87 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState),
88 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock),
89 VMSTATE_BOOL(iplb_valid, S390IPLState),
90 VMSTATE_UINT8(cssid, S390IPLState),
91 VMSTATE_UINT8(ssid, S390IPLState),
92 VMSTATE_UINT16(devno, S390IPLState),
93 VMSTATE_END_OF_LIST()
94 }
95};
96
97static S390IPLState *get_ipl_device(void)
98{
99 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL));
100}
101
102static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr)
103{
104 uint64_t dstaddr = *(uint64_t *) opaque;
105
106
107
108
109 return srcaddr + dstaddr;
110}
111
112static void s390_ipl_realize(DeviceState *dev, Error **errp)
113{
114 MachineState *ms = MACHINE(qdev_get_machine());
115 S390IPLState *ipl = S390_IPL(dev);
116 uint32_t *ipl_psw;
117 uint64_t pentry;
118 char *magic;
119 int kernel_size;
120
121 int bios_size;
122 char *bios_filename;
123
124
125
126
127
128 if (!ipl->kernel || ipl->enforce_bios) {
129 uint64_t fwbase = (MIN(ms->ram_size, 0x80000000U) - 0x200000) & ~0xffffUL;
130
131 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->firmware);
132 if (bios_filename == NULL) {
133 error_setg(errp, "could not find stage1 bootloader");
134 return;
135 }
136
137 bios_size = load_elf(bios_filename, NULL,
138 bios_translate_addr, &fwbase,
139 &ipl->bios_start_addr, NULL, NULL, NULL, 1,
140 EM_S390, 0, 0);
141 if (bios_size > 0) {
142
143 ipl->bios_start_addr += fwbase;
144 } else {
145
146 bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START,
147 4096);
148 ipl->bios_start_addr = ZIPL_IMAGE_START;
149 }
150 g_free(bios_filename);
151
152 if (bios_size == -1) {
153 error_setg(errp, "could not load bootloader '%s'", ipl->firmware);
154 return;
155 }
156
157
158 ipl->start_addr = ipl->bios_start_addr;
159 }
160
161 if (ipl->kernel) {
162 kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL,
163 &pentry, NULL,
164 NULL, NULL, 1, EM_S390, 0, 0);
165 if (kernel_size < 0) {
166 kernel_size = load_image_targphys(ipl->kernel, 0, ms->ram_size);
167 if (kernel_size < 0) {
168 error_setg(errp, "could not load kernel '%s'", ipl->kernel);
169 return;
170 }
171
172 magic = rom_ptr(LINUX_MAGIC_ADDR, 6);
173 if (magic && !memcmp(magic, "S390EP", 6)) {
174 pentry = KERN_IMAGE_START;
175 } else {
176
177 ipl_psw = rom_ptr(4, 4);
178 if (ipl_psw) {
179 pentry = be32_to_cpu(*ipl_psw) & PSW_MASK_SHORT_ADDR;
180 } else {
181 error_setg(errp, "Could not get IPL PSW");
182 return;
183 }
184 }
185 }
186
187
188
189
190
191
192 if (pentry == KERN_IMAGE_START || pentry == 0x800) {
193 char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1);
194 ipl->start_addr = KERN_IMAGE_START;
195
196 if (parm_area) {
197 strcpy(parm_area, ipl->cmdline);
198 }
199 } else {
200 ipl->start_addr = pentry;
201 }
202
203 if (ipl->initrd) {
204 ram_addr_t initrd_offset;
205 int initrd_size;
206 uint64_t *romptr;
207
208 initrd_offset = INITRD_START;
209 while (kernel_size + 0x100000 > initrd_offset) {
210 initrd_offset += 0x100000;
211 }
212 initrd_size = load_image_targphys(ipl->initrd, initrd_offset,
213 ms->ram_size - initrd_offset);
214 if (initrd_size == -1) {
215 error_setg(errp, "could not load initrd '%s'", ipl->initrd);
216 return;
217 }
218
219
220
221
222
223 romptr = rom_ptr(INITRD_PARM_START, 16);
224 if (romptr) {
225 stq_p(romptr, initrd_offset);
226 stq_p(romptr + 1, initrd_size);
227 }
228 }
229 }
230
231
232
233
234
235 ipl->compat_start_addr = ipl->start_addr;
236 ipl->compat_bios_start_addr = ipl->bios_start_addr;
237
238
239
240
241
242
243
244
245 qemu_register_reset(resettable_cold_reset_fn, dev);
246}
247
248static Property s390_ipl_properties[] = {
249 DEFINE_PROP_STRING("kernel", S390IPLState, kernel),
250 DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
251 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
252 DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
253 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw),
254 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false),
255 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration,
256 true),
257 DEFINE_PROP_END_OF_LIST(),
258};
259
260static void s390_ipl_set_boot_menu(S390IPLState *ipl)
261{
262 QemuOptsList *plist = qemu_find_opts("boot-opts");
263 QemuOpts *opts = QTAILQ_FIRST(&plist->head);
264 const char *tmp;
265 unsigned long splash_time = 0;
266
267 if (!get_boot_device(0)) {
268 if (boot_menu) {
269 error_report("boot menu requires a bootindex to be specified for "
270 "the IPL device");
271 }
272 return;
273 }
274
275 switch (ipl->iplb.pbt) {
276 case S390_IPL_TYPE_CCW:
277
278 if (!qemu_opt_get(opts, "menu")) {
279 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL;
280 return;
281 }
282 break;
283 case S390_IPL_TYPE_QEMU_SCSI:
284 break;
285 default:
286 if (boot_menu) {
287 error_report("boot menu is not supported for this device type");
288 }
289 return;
290 }
291
292 if (!boot_menu) {
293 return;
294 }
295
296 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD;
297
298 tmp = qemu_opt_get(opts, "splash-time");
299
300 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) {
301 error_report("splash-time is invalid, forcing it to 0");
302 ipl->qipl.boot_menu_timeout = 0;
303 return;
304 }
305
306 if (splash_time > 0xffffffff) {
307 error_report("splash-time is too large, forcing it to max value");
308 ipl->qipl.boot_menu_timeout = 0xffffffff;
309 return;
310 }
311
312 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time);
313}
314
315#define CCW_DEVTYPE_NONE 0x00
316#define CCW_DEVTYPE_VIRTIO 0x01
317#define CCW_DEVTYPE_VIRTIO_NET 0x02
318#define CCW_DEVTYPE_SCSI 0x03
319#define CCW_DEVTYPE_VFIO 0x04
320
321static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype)
322{
323 CcwDevice *ccw_dev = NULL;
324 int tmp_dt = CCW_DEVTYPE_NONE;
325
326 if (dev_st) {
327 VirtIONet *virtio_net_dev = (VirtIONet *)
328 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET);
329 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
330 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
331 TYPE_VIRTIO_CCW_DEVICE);
332 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *)
333 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW);
334
335 if (virtio_ccw_dev) {
336 ccw_dev = CCW_DEVICE(virtio_ccw_dev);
337 if (virtio_net_dev) {
338 tmp_dt = CCW_DEVTYPE_VIRTIO_NET;
339 } else {
340 tmp_dt = CCW_DEVTYPE_VIRTIO;
341 }
342 } else if (vfio_ccw_dev) {
343 ccw_dev = CCW_DEVICE(vfio_ccw_dev);
344 tmp_dt = CCW_DEVTYPE_VFIO;
345 } else {
346 SCSIDevice *sd = (SCSIDevice *)
347 object_dynamic_cast(OBJECT(dev_st),
348 TYPE_SCSI_DEVICE);
349 if (sd) {
350 SCSIBus *bus = scsi_bus_from_device(sd);
351 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
352 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw,
353 vdev);
354
355 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
356 TYPE_CCW_DEVICE);
357 tmp_dt = CCW_DEVTYPE_SCSI;
358 }
359 }
360 }
361 if (devtype) {
362 *devtype = tmp_dt;
363 }
364 return ccw_dev;
365}
366
367static bool s390_gen_initial_iplb(S390IPLState *ipl)
368{
369 DeviceState *dev_st;
370 CcwDevice *ccw_dev = NULL;
371 SCSIDevice *sd;
372 int devtype;
373
374 dev_st = get_boot_device(0);
375 if (dev_st) {
376 ccw_dev = s390_get_ccw_device(dev_st, &devtype);
377 }
378
379
380
381
382 if (ccw_dev) {
383 switch (devtype) {
384 case CCW_DEVTYPE_SCSI:
385 sd = SCSI_DEVICE(dev_st);
386 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
387 ipl->iplb.blk0_len =
388 cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
389 ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI;
390 ipl->iplb.scsi.lun = cpu_to_be32(sd->lun);
391 ipl->iplb.scsi.target = cpu_to_be16(sd->id);
392 ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
393 ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
394 ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
395 break;
396 case CCW_DEVTYPE_VFIO:
397 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
398 ipl->iplb.pbt = S390_IPL_TYPE_CCW;
399 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
400 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
401 break;
402 case CCW_DEVTYPE_VIRTIO_NET:
403 ipl->netboot = true;
404
405 case CCW_DEVTYPE_VIRTIO:
406 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
407 ipl->iplb.blk0_len =
408 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
409 ipl->iplb.pbt = S390_IPL_TYPE_CCW;
410 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
411 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
412 break;
413 }
414
415 if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
416 ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID;
417 }
418
419 return true;
420 }
421
422 return false;
423}
424
425int s390_ipl_set_loadparm(uint8_t *loadparm)
426{
427 MachineState *machine = MACHINE(qdev_get_machine());
428 char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL);
429
430 if (lp) {
431 int i;
432
433
434 for (i = 0; i < 8 && lp[i]; i++) {
435 loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]];
436 }
437
438 if (i < 8) {
439 memset(loadparm + i, 0x40, 8 - i);
440 }
441
442 g_free(lp);
443 return 0;
444 }
445
446 return -1;
447}
448
449static int load_netboot_image(Error **errp)
450{
451 MachineState *ms = MACHINE(qdev_get_machine());
452 S390IPLState *ipl = get_ipl_device();
453 char *netboot_filename;
454 MemoryRegion *sysmem = get_system_memory();
455 MemoryRegion *mr = NULL;
456 void *ram_ptr = NULL;
457 int img_size = -1;
458
459 mr = memory_region_find(sysmem, 0, 1).mr;
460 if (!mr) {
461 error_setg(errp, "Failed to find memory region at address 0");
462 return -1;
463 }
464
465 ram_ptr = memory_region_get_ram_ptr(mr);
466 if (!ram_ptr) {
467 error_setg(errp, "No RAM found");
468 goto unref_mr;
469 }
470
471 netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw);
472 if (netboot_filename == NULL) {
473 error_setg(errp, "Could not find network bootloader '%s'",
474 ipl->netboot_fw);
475 goto unref_mr;
476 }
477
478 img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL,
479 &ipl->start_addr,
480 NULL, NULL, NULL, 1, EM_S390, 0, 0, NULL,
481 false);
482
483 if (img_size < 0) {
484 img_size = load_image_size(netboot_filename, ram_ptr, ms->ram_size);
485 ipl->start_addr = KERN_IMAGE_START;
486 }
487
488 if (img_size < 0) {
489 error_setg(errp, "Failed to load network bootloader");
490 }
491
492 g_free(netboot_filename);
493
494unref_mr:
495 memory_region_unref(mr);
496 return img_size;
497}
498
499static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb,
500 int virtio_id)
501{
502 uint8_t cssid;
503 uint8_t ssid;
504 uint16_t devno;
505 uint16_t schid;
506 SubchDev *sch = NULL;
507
508 if (iplb->pbt != S390_IPL_TYPE_CCW) {
509 return false;
510 }
511
512 devno = be16_to_cpu(iplb->ccw.devno);
513 ssid = iplb->ccw.ssid & 3;
514
515 for (schid = 0; schid < MAX_SCHID; schid++) {
516 for (cssid = 0; cssid < MAX_CSSID; cssid++) {
517 sch = css_find_subch(1, cssid, ssid, schid);
518
519 if (sch && sch->devno == devno) {
520 return sch->id.cu_model == virtio_id;
521 }
522 }
523 }
524 return false;
525}
526
527static bool is_virtio_net_device(IplParameterBlock *iplb)
528{
529 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET);
530}
531
532static bool is_virtio_scsi_device(IplParameterBlock *iplb)
533{
534 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI);
535}
536
537static void update_machine_ipl_properties(IplParameterBlock *iplb)
538{
539 Object *machine = qdev_get_machine();
540 Error *err = NULL;
541
542
543 if (iplb->flags & DIAG308_FLAGS_LP_VALID) {
544 uint8_t *ebcdic_loadparm = iplb->loadparm;
545 char ascii_loadparm[9];
546 int i;
547
548 for (i = 0; i < 8 && ebcdic_loadparm[i]; i++) {
549 ascii_loadparm[i] = ebcdic2ascii[(uint8_t) ebcdic_loadparm[i]];
550 }
551 ascii_loadparm[i] = 0;
552 object_property_set_str(machine, "loadparm", ascii_loadparm, &err);
553 } else {
554 object_property_set_str(machine, "loadparm", "", &err);
555 }
556 if (err) {
557 warn_report_err(err);
558 }
559}
560
561void s390_ipl_update_diag308(IplParameterBlock *iplb)
562{
563 S390IPLState *ipl = get_ipl_device();
564
565
566
567
568
569 if (iplb->pbt == S390_IPL_TYPE_PV) {
570 ipl->iplb_pv = *iplb;
571 ipl->iplb_valid_pv = true;
572 } else {
573 ipl->iplb = *iplb;
574 ipl->iplb_valid = true;
575 }
576 ipl->netboot = is_virtio_net_device(iplb);
577 update_machine_ipl_properties(iplb);
578}
579
580IplParameterBlock *s390_ipl_get_iplb_pv(void)
581{
582 S390IPLState *ipl = get_ipl_device();
583
584 if (!ipl->iplb_valid_pv) {
585 return NULL;
586 }
587 return &ipl->iplb_pv;
588}
589
590IplParameterBlock *s390_ipl_get_iplb(void)
591{
592 S390IPLState *ipl = get_ipl_device();
593
594 if (!ipl->iplb_valid) {
595 return NULL;
596 }
597 return &ipl->iplb;
598}
599
600void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type)
601{
602 S390IPLState *ipl = get_ipl_device();
603
604 if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) {
605
606 ipl->reset_cpu_index = 0;
607 } else {
608 ipl->reset_cpu_index = cs->cpu_index;
609 }
610 ipl->reset_type = reset_type;
611
612 if (reset_type == S390_RESET_REIPL &&
613 ipl->iplb_valid &&
614 !ipl->netboot &&
615 ipl->iplb.pbt == S390_IPL_TYPE_CCW &&
616 is_virtio_scsi_device(&ipl->iplb)) {
617 CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL);
618
619 if (ccw_dev &&
620 cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno &&
621 (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) {
622
623
624
625
626 ipl->iplb_valid = s390_gen_initial_iplb(ipl);
627 }
628 }
629 if (reset_type == S390_RESET_MODIFIED_CLEAR ||
630 reset_type == S390_RESET_LOAD_NORMAL ||
631 reset_type == S390_RESET_PV) {
632
633 qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET);
634 } else {
635 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
636 }
637
638 if (tcg_enabled()) {
639 cpu_loop_exit(cs);
640 }
641}
642
643void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type)
644{
645 S390IPLState *ipl = get_ipl_device();
646
647 *cs = qemu_get_cpu(ipl->reset_cpu_index);
648 if (!*cs) {
649
650 *cs = first_cpu;
651 }
652 *reset_type = ipl->reset_type;
653}
654
655void s390_ipl_clear_reset_request(void)
656{
657 S390IPLState *ipl = get_ipl_device();
658
659 ipl->reset_type = S390_RESET_EXTERNAL;
660
661 ipl->reset_cpu_index = 0;
662}
663
664static void s390_ipl_prepare_qipl(S390CPU *cpu)
665{
666 S390IPLState *ipl = get_ipl_device();
667 uint8_t *addr;
668 uint64_t len = 4096;
669
670 addr = cpu_physical_memory_map(cpu->env.psa, &len, true);
671 if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) {
672 error_report("Cannot set QEMU IPL parameters");
673 return;
674 }
675 memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters));
676 cpu_physical_memory_unmap(addr, len, 1, len);
677}
678
679int s390_ipl_prepare_pv_header(void)
680{
681 IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
682 IPLBlockPV *ipib_pv = &ipib->pv;
683 void *hdr = g_malloc(ipib_pv->pv_header_len);
684 int rc;
685
686 cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr,
687 ipib_pv->pv_header_len);
688 rc = s390_pv_set_sec_parms((uintptr_t)hdr,
689 ipib_pv->pv_header_len);
690 g_free(hdr);
691 return rc;
692}
693
694int s390_ipl_pv_unpack(void)
695{
696 IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
697 IPLBlockPV *ipib_pv = &ipib->pv;
698 int i, rc = 0;
699
700 for (i = 0; i < ipib_pv->num_comp; i++) {
701 rc = s390_pv_unpack(ipib_pv->components[i].addr,
702 TARGET_PAGE_ALIGN(ipib_pv->components[i].size),
703 ipib_pv->components[i].tweak_pref);
704 if (rc) {
705 break;
706 }
707 }
708 return rc;
709}
710
711void s390_ipl_prepare_cpu(S390CPU *cpu)
712{
713 S390IPLState *ipl = get_ipl_device();
714 Error *err = NULL;
715
716 cpu->env.psw.addr = ipl->start_addr;
717 cpu->env.psw.mask = IPL_PSW_MASK;
718
719 if (!ipl->kernel || ipl->iplb_valid) {
720 cpu->env.psw.addr = ipl->bios_start_addr;
721 if (!ipl->iplb_valid) {
722 ipl->iplb_valid = s390_gen_initial_iplb(ipl);
723 }
724 }
725 if (ipl->netboot) {
726 if (load_netboot_image(&err) < 0) {
727 error_report_err(err);
728 exit(1);
729 }
730 ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr);
731 }
732 s390_ipl_set_boot_menu(ipl);
733 s390_ipl_prepare_qipl(cpu);
734}
735
736static void s390_ipl_reset(DeviceState *dev)
737{
738 S390IPLState *ipl = S390_IPL(dev);
739
740 if (ipl->reset_type != S390_RESET_REIPL) {
741 ipl->iplb_valid = false;
742 memset(&ipl->iplb, 0, sizeof(IplParameterBlock));
743 }
744}
745
746static void s390_ipl_class_init(ObjectClass *klass, void *data)
747{
748 DeviceClass *dc = DEVICE_CLASS(klass);
749
750 dc->realize = s390_ipl_realize;
751 device_class_set_props(dc, s390_ipl_properties);
752 dc->reset = s390_ipl_reset;
753 dc->vmsd = &vmstate_ipl;
754 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
755
756 dc->user_creatable = false;
757}
758
759static const TypeInfo s390_ipl_info = {
760 .class_init = s390_ipl_class_init,
761 .parent = TYPE_DEVICE,
762 .name = TYPE_S390_IPL,
763 .instance_size = sizeof(S390IPLState),
764};
765
766static void s390_ipl_register_types(void)
767{
768 type_register_static(&s390_ipl_info);
769}
770
771type_init(s390_ipl_register_types)
772
