target/arm: Check supported KVM features globally (not per vCPU)
[qemu/ar7.git] / hw / s390x / ipl.c
blobce21494c08f77a35269b5e4b3ad5763eb6e76e7b
1 /*
2 * bootloader support
4 * Copyright IBM, Corp. 2012, 2020
6 * Authors:
7 * Christian Borntraeger <borntraeger@de.ibm.com>
8 * Janosch Frank <frankja@linux.ibm.com>
10 * This work is licensed under the terms of the GNU GPL, version 2 or (at your
11 * option) any later version. See the COPYING file in the top-level directory.
15 #include "qemu/osdep.h"
16 #include "qemu-common.h"
17 #include "qapi/error.h"
18 #include "sysemu/reset.h"
19 #include "sysemu/runstate.h"
20 #include "sysemu/sysemu.h"
21 #include "sysemu/tcg.h"
22 #include "cpu.h"
23 #include "elf.h"
24 #include "hw/loader.h"
25 #include "hw/qdev-properties.h"
26 #include "hw/boards.h"
27 #include "hw/s390x/virtio-ccw.h"
28 #include "hw/s390x/vfio-ccw.h"
29 #include "hw/s390x/css.h"
30 #include "hw/s390x/ebcdic.h"
31 #include "hw/s390x/pv.h"
32 #include "ipl.h"
33 #include "qemu/error-report.h"
34 #include "qemu/config-file.h"
35 #include "qemu/cutils.h"
36 #include "qemu/option.h"
37 #include "exec/exec-all.h"
39 #define KERN_IMAGE_START 0x010000UL
40 #define LINUX_MAGIC_ADDR 0x010008UL
41 #define KERN_PARM_AREA 0x010480UL
42 #define INITRD_START 0x800000UL
43 #define INITRD_PARM_START 0x010408UL
44 #define PARMFILE_START 0x001000UL
45 #define ZIPL_IMAGE_START 0x009000UL
46 #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
48 static bool iplb_extended_needed(void *opaque)
50 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL));
52 return ipl->iplbext_migration;
55 static const VMStateDescription vmstate_iplb_extended = {
56 .name = "ipl/iplb_extended",
57 .version_id = 0,
58 .minimum_version_id = 0,
59 .needed = iplb_extended_needed,
60 .fields = (VMStateField[]) {
61 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200),
62 VMSTATE_END_OF_LIST()
66 static const VMStateDescription vmstate_iplb = {
67 .name = "ipl/iplb",
68 .version_id = 0,
69 .minimum_version_id = 0,
70 .fields = (VMStateField[]) {
71 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110),
72 VMSTATE_UINT16(devno, IplParameterBlock),
73 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88),
74 VMSTATE_END_OF_LIST()
76 .subsections = (const VMStateDescription*[]) {
77 &vmstate_iplb_extended,
78 NULL
82 static const VMStateDescription vmstate_ipl = {
83 .name = "ipl",
84 .version_id = 0,
85 .minimum_version_id = 0,
86 .fields = (VMStateField[]) {
87 VMSTATE_UINT64(compat_start_addr, S390IPLState),
88 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState),
89 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock),
90 VMSTATE_BOOL(iplb_valid, S390IPLState),
91 VMSTATE_UINT8(cssid, S390IPLState),
92 VMSTATE_UINT8(ssid, S390IPLState),
93 VMSTATE_UINT16(devno, S390IPLState),
94 VMSTATE_END_OF_LIST()
98 static S390IPLState *get_ipl_device(void)
100 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL));
103 static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr)
105 uint64_t dstaddr = *(uint64_t *) opaque;
107 * Assuming that our s390-ccw.img was linked for starting at address 0,
108 * we can simply add the destination address for the final location
110 return srcaddr + dstaddr;
113 static void s390_ipl_realize(DeviceState *dev, Error **errp)
115 S390IPLState *ipl = S390_IPL(dev);
116 uint32_t *ipl_psw;
117 uint64_t pentry;
118 char *magic;
119 int kernel_size;
120 Error *err = NULL;
122 int bios_size;
123 char *bios_filename;
126 * Always load the bios if it was enforced,
127 * even if an external kernel has been defined.
129 if (!ipl->kernel || ipl->enforce_bios) {
130 uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL;
132 if (bios_name == NULL) {
133 bios_name = ipl->firmware;
136 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
137 if (bios_filename == NULL) {
138 error_setg(&err, "could not find stage1 bootloader");
139 goto error;
142 bios_size = load_elf(bios_filename, NULL,
143 bios_translate_addr, &fwbase,
144 &ipl->bios_start_addr, NULL, NULL, NULL, 1,
145 EM_S390, 0, 0);
146 if (bios_size > 0) {
147 /* Adjust ELF start address to final location */
148 ipl->bios_start_addr += fwbase;
149 } else {
150 /* Try to load non-ELF file */
151 bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START,
152 4096);
153 ipl->bios_start_addr = ZIPL_IMAGE_START;
155 g_free(bios_filename);
157 if (bios_size == -1) {
158 error_setg(&err, "could not load bootloader '%s'", bios_name);
159 goto error;
162 /* default boot target is the bios */
163 ipl->start_addr = ipl->bios_start_addr;
166 if (ipl->kernel) {
167 kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL,
168 &pentry, NULL,
169 NULL, NULL, 1, EM_S390, 0, 0);
170 if (kernel_size < 0) {
171 kernel_size = load_image_targphys(ipl->kernel, 0, ram_size);
172 if (kernel_size < 0) {
173 error_setg(&err, "could not load kernel '%s'", ipl->kernel);
174 goto error;
176 /* if this is Linux use KERN_IMAGE_START */
177 magic = rom_ptr(LINUX_MAGIC_ADDR, 6);
178 if (magic && !memcmp(magic, "S390EP", 6)) {
179 pentry = KERN_IMAGE_START;
180 } else {
181 /* if not Linux load the address of the (short) IPL PSW */
182 ipl_psw = rom_ptr(4, 4);
183 if (ipl_psw) {
184 pentry = be32_to_cpu(*ipl_psw) & PSW_MASK_SHORT_ADDR;
185 } else {
186 error_setg(&err, "Could not get IPL PSW");
187 goto error;
192 * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the
193 * kernel parameters here as well. Note: For old kernels (up to 3.2)
194 * we can not rely on the ELF entry point - it was 0x800 (the SALIPL
195 * loader) and it won't work. For this case we force it to 0x10000, too.
197 if (pentry == KERN_IMAGE_START || pentry == 0x800) {
198 char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1);
199 ipl->start_addr = KERN_IMAGE_START;
200 /* Overwrite parameters in the kernel image, which are "rom" */
201 if (parm_area) {
202 strcpy(parm_area, ipl->cmdline);
204 } else {
205 ipl->start_addr = pentry;
208 if (ipl->initrd) {
209 ram_addr_t initrd_offset;
210 int initrd_size;
211 uint64_t *romptr;
213 initrd_offset = INITRD_START;
214 while (kernel_size + 0x100000 > initrd_offset) {
215 initrd_offset += 0x100000;
217 initrd_size = load_image_targphys(ipl->initrd, initrd_offset,
218 ram_size - initrd_offset);
219 if (initrd_size == -1) {
220 error_setg(&err, "could not load initrd '%s'", ipl->initrd);
221 goto error;
225 * we have to overwrite values in the kernel image,
226 * which are "rom"
228 romptr = rom_ptr(INITRD_PARM_START, 16);
229 if (romptr) {
230 stq_p(romptr, initrd_offset);
231 stq_p(romptr + 1, initrd_size);
236 * Don't ever use the migrated values, they could come from a different
237 * BIOS and therefore don't work. But still migrate the values, so
238 * QEMUs relying on it don't break.
240 ipl->compat_start_addr = ipl->start_addr;
241 ipl->compat_bios_start_addr = ipl->bios_start_addr;
243 * Because this Device is not on any bus in the qbus tree (it is
244 * not a sysbus device and it's not on some other bus like a PCI
245 * bus) it will not be automatically reset by the 'reset the
246 * sysbus' hook registered by vl.c like most devices. So we must
247 * manually register a reset hook for it.
248 * TODO: there should be a better way to do this.
250 qemu_register_reset(resettable_cold_reset_fn, dev);
251 error:
252 error_propagate(errp, err);
255 static Property s390_ipl_properties[] = {
256 DEFINE_PROP_STRING("kernel", S390IPLState, kernel),
257 DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
258 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
259 DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
260 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw),
261 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false),
262 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration,
263 true),
264 DEFINE_PROP_END_OF_LIST(),
267 static void s390_ipl_set_boot_menu(S390IPLState *ipl)
269 QemuOptsList *plist = qemu_find_opts("boot-opts");
270 QemuOpts *opts = QTAILQ_FIRST(&plist->head);
271 const char *tmp;
272 unsigned long splash_time = 0;
274 if (!get_boot_device(0)) {
275 if (boot_menu) {
276 error_report("boot menu requires a bootindex to be specified for "
277 "the IPL device");
279 return;
282 switch (ipl->iplb.pbt) {
283 case S390_IPL_TYPE_CCW:
284 /* In the absence of -boot menu, use zipl parameters */
285 if (!qemu_opt_get(opts, "menu")) {
286 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL;
287 return;
289 break;
290 case S390_IPL_TYPE_QEMU_SCSI:
291 break;
292 default:
293 if (boot_menu) {
294 error_report("boot menu is not supported for this device type");
296 return;
299 if (!boot_menu) {
300 return;
303 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD;
305 tmp = qemu_opt_get(opts, "splash-time");
307 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) {
308 error_report("splash-time is invalid, forcing it to 0");
309 ipl->qipl.boot_menu_timeout = 0;
310 return;
313 if (splash_time > 0xffffffff) {
314 error_report("splash-time is too large, forcing it to max value");
315 ipl->qipl.boot_menu_timeout = 0xffffffff;
316 return;
319 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time);
322 #define CCW_DEVTYPE_NONE 0x00
323 #define CCW_DEVTYPE_VIRTIO 0x01
324 #define CCW_DEVTYPE_VIRTIO_NET 0x02
325 #define CCW_DEVTYPE_SCSI 0x03
326 #define CCW_DEVTYPE_VFIO 0x04
328 static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype)
330 CcwDevice *ccw_dev = NULL;
331 int tmp_dt = CCW_DEVTYPE_NONE;
333 if (dev_st) {
334 VirtIONet *virtio_net_dev = (VirtIONet *)
335 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET);
336 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *)
337 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent),
338 TYPE_VIRTIO_CCW_DEVICE);
339 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *)
340 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW);
342 if (virtio_ccw_dev) {
343 ccw_dev = CCW_DEVICE(virtio_ccw_dev);
344 if (virtio_net_dev) {
345 tmp_dt = CCW_DEVTYPE_VIRTIO_NET;
346 } else {
347 tmp_dt = CCW_DEVTYPE_VIRTIO;
349 } else if (vfio_ccw_dev) {
350 ccw_dev = CCW_DEVICE(vfio_ccw_dev);
351 tmp_dt = CCW_DEVTYPE_VFIO;
352 } else {
353 SCSIDevice *sd = (SCSIDevice *)
354 object_dynamic_cast(OBJECT(dev_st),
355 TYPE_SCSI_DEVICE);
356 if (sd) {
357 SCSIBus *bus = scsi_bus_from_device(sd);
358 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
359 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw,
360 vdev);
362 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw),
363 TYPE_CCW_DEVICE);
364 tmp_dt = CCW_DEVTYPE_SCSI;
368 if (devtype) {
369 *devtype = tmp_dt;
371 return ccw_dev;
374 static bool s390_gen_initial_iplb(S390IPLState *ipl)
376 DeviceState *dev_st;
377 CcwDevice *ccw_dev = NULL;
378 SCSIDevice *sd;
379 int devtype;
381 dev_st = get_boot_device(0);
382 if (dev_st) {
383 ccw_dev = s390_get_ccw_device(dev_st, &devtype);
387 * Currently allow IPL only from CCW devices.
389 if (ccw_dev) {
390 switch (devtype) {
391 case CCW_DEVTYPE_SCSI:
392 sd = SCSI_DEVICE(dev_st);
393 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
394 ipl->iplb.blk0_len =
395 cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);
396 ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI;
397 ipl->iplb.scsi.lun = cpu_to_be32(sd->lun);
398 ipl->iplb.scsi.target = cpu_to_be16(sd->id);
399 ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
400 ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
401 ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
402 break;
403 case CCW_DEVTYPE_VFIO:
404 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
405 ipl->iplb.pbt = S390_IPL_TYPE_CCW;
406 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
407 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
408 break;
409 case CCW_DEVTYPE_VIRTIO_NET:
410 ipl->netboot = true;
411 /* Fall through to CCW_DEVTYPE_VIRTIO case */
412 case CCW_DEVTYPE_VIRTIO:
413 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN);
414 ipl->iplb.blk0_len =
415 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
416 ipl->iplb.pbt = S390_IPL_TYPE_CCW;
417 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
418 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
419 break;
422 if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) {
423 ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID;
426 return true;
429 return false;
432 int s390_ipl_set_loadparm(uint8_t *loadparm)
434 MachineState *machine = MACHINE(qdev_get_machine());
435 char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL);
437 if (lp) {
438 int i;
440 /* lp is an uppercase string without leading/embedded spaces */
441 for (i = 0; i < 8 && lp[i]; i++) {
442 loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]];
445 if (i < 8) {
446 memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */
449 g_free(lp);
450 return 0;
453 return -1;
456 static int load_netboot_image(Error **errp)
458 S390IPLState *ipl = get_ipl_device();
459 char *netboot_filename;
460 MemoryRegion *sysmem = get_system_memory();
461 MemoryRegion *mr = NULL;
462 void *ram_ptr = NULL;
463 int img_size = -1;
465 mr = memory_region_find(sysmem, 0, 1).mr;
466 if (!mr) {
467 error_setg(errp, "Failed to find memory region at address 0");
468 return -1;
471 ram_ptr = memory_region_get_ram_ptr(mr);
472 if (!ram_ptr) {
473 error_setg(errp, "No RAM found");
474 goto unref_mr;
477 netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw);
478 if (netboot_filename == NULL) {
479 error_setg(errp, "Could not find network bootloader '%s'",
480 ipl->netboot_fw);
481 goto unref_mr;
484 img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL,
485 &ipl->start_addr,
486 NULL, NULL, NULL, 1, EM_S390, 0, 0, NULL,
487 false);
489 if (img_size < 0) {
490 img_size = load_image_size(netboot_filename, ram_ptr, ram_size);
491 ipl->start_addr = KERN_IMAGE_START;
494 if (img_size < 0) {
495 error_setg(errp, "Failed to load network bootloader");
498 g_free(netboot_filename);
500 unref_mr:
501 memory_region_unref(mr);
502 return img_size;
505 static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb,
506 int virtio_id)
508 uint8_t cssid;
509 uint8_t ssid;
510 uint16_t devno;
511 uint16_t schid;
512 SubchDev *sch = NULL;
514 if (iplb->pbt != S390_IPL_TYPE_CCW) {
515 return false;
518 devno = be16_to_cpu(iplb->ccw.devno);
519 ssid = iplb->ccw.ssid & 3;
521 for (schid = 0; schid < MAX_SCHID; schid++) {
522 for (cssid = 0; cssid < MAX_CSSID; cssid++) {
523 sch = css_find_subch(1, cssid, ssid, schid);
525 if (sch && sch->devno == devno) {
526 return sch->id.cu_model == virtio_id;
530 return false;
533 static bool is_virtio_net_device(IplParameterBlock *iplb)
535 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET);
538 static bool is_virtio_scsi_device(IplParameterBlock *iplb)
540 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI);
543 static void update_machine_ipl_properties(IplParameterBlock *iplb)
545 Object *machine = qdev_get_machine();
546 Error *err = NULL;
548 /* Sync loadparm */
549 if (iplb->flags & DIAG308_FLAGS_LP_VALID) {
550 uint8_t *ebcdic_loadparm = iplb->loadparm;
551 char ascii_loadparm[9];
552 int i;
554 for (i = 0; i < 8 && ebcdic_loadparm[i]; i++) {
555 ascii_loadparm[i] = ebcdic2ascii[(uint8_t) ebcdic_loadparm[i]];
557 ascii_loadparm[i] = 0;
558 object_property_set_str(machine, ascii_loadparm, "loadparm", &err);
559 } else {
560 object_property_set_str(machine, "", "loadparm", &err);
562 if (err) {
563 warn_report_err(err);
567 void s390_ipl_update_diag308(IplParameterBlock *iplb)
569 S390IPLState *ipl = get_ipl_device();
572 * The IPLB set and retrieved by subcodes 8/9 is completely
573 * separate from the one managed via subcodes 5/6.
575 if (iplb->pbt == S390_IPL_TYPE_PV) {
576 ipl->iplb_pv = *iplb;
577 ipl->iplb_valid_pv = true;
578 } else {
579 ipl->iplb = *iplb;
580 ipl->iplb_valid = true;
582 ipl->netboot = is_virtio_net_device(iplb);
583 update_machine_ipl_properties(iplb);
586 IplParameterBlock *s390_ipl_get_iplb_pv(void)
588 S390IPLState *ipl = get_ipl_device();
590 if (!ipl->iplb_valid_pv) {
591 return NULL;
593 return &ipl->iplb_pv;
596 IplParameterBlock *s390_ipl_get_iplb(void)
598 S390IPLState *ipl = get_ipl_device();
600 if (!ipl->iplb_valid) {
601 return NULL;
603 return &ipl->iplb;
606 void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type)
608 S390IPLState *ipl = get_ipl_device();
610 if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) {
611 /* use CPU 0 for full resets */
612 ipl->reset_cpu_index = 0;
613 } else {
614 ipl->reset_cpu_index = cs->cpu_index;
616 ipl->reset_type = reset_type;
618 if (reset_type == S390_RESET_REIPL &&
619 ipl->iplb_valid &&
620 !ipl->netboot &&
621 ipl->iplb.pbt == S390_IPL_TYPE_CCW &&
622 is_virtio_scsi_device(&ipl->iplb)) {
623 CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL);
625 if (ccw_dev &&
626 cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno &&
627 (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) {
629 * this is the original boot device's SCSI
630 * so restore IPL parameter info from it
632 ipl->iplb_valid = s390_gen_initial_iplb(ipl);
635 if (reset_type == S390_RESET_MODIFIED_CLEAR ||
636 reset_type == S390_RESET_LOAD_NORMAL) {
637 /* ignore -no-reboot, send no event */
638 qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET);
639 } else {
640 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
642 /* as this is triggered by a CPU, make sure to exit the loop */
643 if (tcg_enabled()) {
644 cpu_loop_exit(cs);
648 void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type)
650 S390IPLState *ipl = get_ipl_device();
652 *cs = qemu_get_cpu(ipl->reset_cpu_index);
653 if (!*cs) {
654 /* use any CPU */
655 *cs = first_cpu;
657 *reset_type = ipl->reset_type;
660 void s390_ipl_clear_reset_request(void)
662 S390IPLState *ipl = get_ipl_device();
664 ipl->reset_type = S390_RESET_EXTERNAL;
665 /* use CPU 0 for full resets */
666 ipl->reset_cpu_index = 0;
669 static void s390_ipl_prepare_qipl(S390CPU *cpu)
671 S390IPLState *ipl = get_ipl_device();
672 uint8_t *addr;
673 uint64_t len = 4096;
675 addr = cpu_physical_memory_map(cpu->env.psa, &len, true);
676 if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) {
677 error_report("Cannot set QEMU IPL parameters");
678 return;
680 memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters));
681 cpu_physical_memory_unmap(addr, len, 1, len);
684 int s390_ipl_prepare_pv_header(void)
686 IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
687 IPLBlockPV *ipib_pv = &ipib->pv;
688 void *hdr = g_malloc(ipib_pv->pv_header_len);
689 int rc;
691 cpu_physical_memory_read(ipib_pv->pv_header_addr, hdr,
692 ipib_pv->pv_header_len);
693 rc = s390_pv_set_sec_parms((uintptr_t)hdr,
694 ipib_pv->pv_header_len);
695 g_free(hdr);
696 return rc;
699 int s390_ipl_pv_unpack(void)
701 IplParameterBlock *ipib = s390_ipl_get_iplb_pv();
702 IPLBlockPV *ipib_pv = &ipib->pv;
703 int i, rc = 0;
705 for (i = 0; i < ipib_pv->num_comp; i++) {
706 rc = s390_pv_unpack(ipib_pv->components[i].addr,
707 TARGET_PAGE_ALIGN(ipib_pv->components[i].size),
708 ipib_pv->components[i].tweak_pref);
709 if (rc) {
710 break;
713 return rc;
716 void s390_ipl_prepare_cpu(S390CPU *cpu)
718 S390IPLState *ipl = get_ipl_device();
719 Error *err = NULL;
721 cpu->env.psw.addr = ipl->start_addr;
722 cpu->env.psw.mask = IPL_PSW_MASK;
724 if (!ipl->kernel || ipl->iplb_valid) {
725 cpu->env.psw.addr = ipl->bios_start_addr;
726 if (!ipl->iplb_valid) {
727 ipl->iplb_valid = s390_gen_initial_iplb(ipl);
730 if (ipl->netboot) {
731 if (load_netboot_image(&err) < 0) {
732 error_report_err(err);
733 exit(1);
735 ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr);
737 s390_ipl_set_boot_menu(ipl);
738 s390_ipl_prepare_qipl(cpu);
741 static void s390_ipl_reset(DeviceState *dev)
743 S390IPLState *ipl = S390_IPL(dev);
745 if (ipl->reset_type != S390_RESET_REIPL) {
746 ipl->iplb_valid = false;
747 memset(&ipl->iplb, 0, sizeof(IplParameterBlock));
751 static void s390_ipl_class_init(ObjectClass *klass, void *data)
753 DeviceClass *dc = DEVICE_CLASS(klass);
755 dc->realize = s390_ipl_realize;
756 device_class_set_props(dc, s390_ipl_properties);
757 dc->reset = s390_ipl_reset;
758 dc->vmsd = &vmstate_ipl;
759 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
760 /* Reason: Loads the ROMs and thus can only be used one time - internally */
761 dc->user_creatable = false;
764 static const TypeInfo s390_ipl_info = {
765 .class_init = s390_ipl_class_init,
766 .parent = TYPE_DEVICE,
767 .name = TYPE_S390_IPL,
768 .instance_size = sizeof(S390IPLState),
771 static void s390_ipl_register_types(void)
773 type_register_static(&s390_ipl_info);
776 type_init(s390_ipl_register_types)