1 /* 2 * bootloader support 3 * 4 * Copyright IBM, Corp. 2012 5 * 6 * Authors: 7 * Christian Borntraeger <borntraeger@de.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at your 10 * option) any later version. See the COPYING file in the top-level directory. 11 * 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qemu-common.h" 16 #include "qapi/error.h" 17 #include "sysemu/sysemu.h" 18 #include "sysemu/tcg.h" 19 #include "cpu.h" 20 #include "elf.h" 21 #include "hw/loader.h" 22 #include "hw/boards.h" 23 #include "hw/s390x/virtio-ccw.h" 24 #include "hw/s390x/vfio-ccw.h" 25 #include "hw/s390x/css.h" 26 #include "hw/s390x/ebcdic.h" 27 #include "ipl.h" 28 #include "qemu/error-report.h" 29 #include "qemu/config-file.h" 30 #include "qemu/cutils.h" 31 #include "qemu/option.h" 32 #include "exec/exec-all.h" 33 34 #define KERN_IMAGE_START 0x010000UL 35 #define LINUX_MAGIC_ADDR 0x010008UL 36 #define KERN_PARM_AREA 0x010480UL 37 #define INITRD_START 0x800000UL 38 #define INITRD_PARM_START 0x010408UL 39 #define PARMFILE_START 0x001000UL 40 #define ZIPL_IMAGE_START 0x009000UL 41 #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) 42 43 static bool iplb_extended_needed(void *opaque) 44 { 45 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL)); 46 47 return ipl->iplbext_migration; 48 } 49 50 static const VMStateDescription vmstate_iplb_extended = { 51 .name = "ipl/iplb_extended", 52 .version_id = 0, 53 .minimum_version_id = 0, 54 .needed = iplb_extended_needed, 55 .fields = (VMStateField[]) { 56 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200), 57 VMSTATE_END_OF_LIST() 58 } 59 }; 60 61 static const VMStateDescription vmstate_iplb = { 62 .name = "ipl/iplb", 63 .version_id = 0, 64 .minimum_version_id = 0, 65 .fields = (VMStateField[]) { 66 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110), 67 VMSTATE_UINT16(devno, IplParameterBlock), 68 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88), 69 VMSTATE_END_OF_LIST() 70 }, 71 .subsections = (const VMStateDescription*[]) { 72 &vmstate_iplb_extended, 73 NULL 74 } 75 }; 76 77 static const VMStateDescription vmstate_ipl = { 78 .name = "ipl", 79 .version_id = 0, 80 .minimum_version_id = 0, 81 .fields = (VMStateField[]) { 82 VMSTATE_UINT64(compat_start_addr, S390IPLState), 83 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState), 84 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock), 85 VMSTATE_BOOL(iplb_valid, S390IPLState), 86 VMSTATE_UINT8(cssid, S390IPLState), 87 VMSTATE_UINT8(ssid, S390IPLState), 88 VMSTATE_UINT16(devno, S390IPLState), 89 VMSTATE_END_OF_LIST() 90 } 91 }; 92 93 static S390IPLState *get_ipl_device(void) 94 { 95 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL)); 96 } 97 98 static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) 99 { 100 uint64_t dstaddr = *(uint64_t *) opaque; 101 /* 102 * Assuming that our s390-ccw.img was linked for starting at address 0, 103 * we can simply add the destination address for the final location 104 */ 105 return srcaddr + dstaddr; 106 } 107 108 static void s390_ipl_realize(DeviceState *dev, Error **errp) 109 { 110 S390IPLState *ipl = S390_IPL(dev); 111 uint32_t *ipl_psw; 112 uint64_t pentry; 113 char *magic; 114 int kernel_size; 115 Error *err = NULL; 116 117 int bios_size; 118 char *bios_filename; 119 120 /* 121 * Always load the bios if it was enforced, 122 * even if an external kernel has been defined. 123 */ 124 if (!ipl->kernel || ipl->enforce_bios) { 125 uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; 126 127 if (bios_name == NULL) { 128 bios_name = ipl->firmware; 129 } 130 131 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 132 if (bios_filename == NULL) { 133 error_setg(&err, "could not find stage1 bootloader"); 134 goto error; 135 } 136 137 bios_size = load_elf(bios_filename, NULL, 138 bios_translate_addr, &fwbase, 139 &ipl->bios_start_addr, NULL, NULL, 1, 140 EM_S390, 0, 0); 141 if (bios_size > 0) { 142 /* Adjust ELF start address to final location */ 143 ipl->bios_start_addr += fwbase; 144 } else { 145 /* Try to load non-ELF file */ 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(&err, "could not load bootloader '%s'", bios_name); 154 goto error; 155 } 156 157 /* default boot target is the bios */ 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, 1, EM_S390, 0, 0); 165 if (kernel_size < 0) { 166 kernel_size = load_image_targphys(ipl->kernel, 0, ram_size); 167 if (kernel_size < 0) { 168 error_setg(&err, "could not load kernel '%s'", ipl->kernel); 169 goto error; 170 } 171 /* if this is Linux use KERN_IMAGE_START */ 172 magic = rom_ptr(LINUX_MAGIC_ADDR, 6); 173 if (magic && !memcmp(magic, "S390EP", 6)) { 174 pentry = KERN_IMAGE_START; 175 } else { 176 /* if not Linux load the address of the (short) IPL PSW */ 177 ipl_psw = rom_ptr(4, 4); 178 if (ipl_psw) { 179 pentry = be32_to_cpu(*ipl_psw) & 0x7fffffffUL; 180 } else { 181 error_setg(&err, "Could not get IPL PSW"); 182 goto error; 183 } 184 } 185 } 186 /* 187 * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the 188 * kernel parameters here as well. Note: For old kernels (up to 3.2) 189 * we can not rely on the ELF entry point - it was 0x800 (the SALIPL 190 * loader) and it won't work. For this case we force it to 0x10000, too. 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 /* Overwrite parameters in the kernel image, which are "rom" */ 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 ram_size - initrd_offset); 214 if (initrd_size == -1) { 215 error_setg(&err, "could not load initrd '%s'", ipl->initrd); 216 goto error; 217 } 218 219 /* 220 * we have to overwrite values in the kernel image, 221 * which are "rom" 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 * Don't ever use the migrated values, they could come from a different 232 * BIOS and therefore don't work. But still migrate the values, so 233 * QEMUs relying on it don't break. 234 */ 235 ipl->compat_start_addr = ipl->start_addr; 236 ipl->compat_bios_start_addr = ipl->bios_start_addr; 237 qemu_register_reset(qdev_reset_all_fn, dev); 238 error: 239 error_propagate(errp, err); 240 } 241 242 static Property s390_ipl_properties[] = { 243 DEFINE_PROP_STRING("kernel", S390IPLState, kernel), 244 DEFINE_PROP_STRING("initrd", S390IPLState, initrd), 245 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline), 246 DEFINE_PROP_STRING("firmware", S390IPLState, firmware), 247 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw), 248 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false), 249 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration, 250 true), 251 DEFINE_PROP_END_OF_LIST(), 252 }; 253 254 static void s390_ipl_set_boot_menu(S390IPLState *ipl) 255 { 256 QemuOptsList *plist = qemu_find_opts("boot-opts"); 257 QemuOpts *opts = QTAILQ_FIRST(&plist->head); 258 const char *tmp; 259 unsigned long splash_time = 0; 260 261 if (!get_boot_device(0)) { 262 if (boot_menu) { 263 error_report("boot menu requires a bootindex to be specified for " 264 "the IPL device"); 265 } 266 return; 267 } 268 269 switch (ipl->iplb.pbt) { 270 case S390_IPL_TYPE_CCW: 271 /* In the absence of -boot menu, use zipl parameters */ 272 if (!qemu_opt_get(opts, "menu")) { 273 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL; 274 return; 275 } 276 break; 277 case S390_IPL_TYPE_QEMU_SCSI: 278 break; 279 default: 280 if (boot_menu) { 281 error_report("boot menu is not supported for this device type"); 282 } 283 return; 284 } 285 286 if (!boot_menu) { 287 return; 288 } 289 290 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD; 291 292 tmp = qemu_opt_get(opts, "splash-time"); 293 294 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) { 295 error_report("splash-time is invalid, forcing it to 0"); 296 ipl->qipl.boot_menu_timeout = 0; 297 return; 298 } 299 300 if (splash_time > 0xffffffff) { 301 error_report("splash-time is too large, forcing it to max value"); 302 ipl->qipl.boot_menu_timeout = 0xffffffff; 303 return; 304 } 305 306 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time); 307 } 308 309 #define CCW_DEVTYPE_NONE 0x00 310 #define CCW_DEVTYPE_VIRTIO 0x01 311 #define CCW_DEVTYPE_VIRTIO_NET 0x02 312 #define CCW_DEVTYPE_SCSI 0x03 313 #define CCW_DEVTYPE_VFIO 0x04 314 315 static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype) 316 { 317 CcwDevice *ccw_dev = NULL; 318 int tmp_dt = CCW_DEVTYPE_NONE; 319 320 if (dev_st) { 321 VirtIONet *virtio_net_dev = (VirtIONet *) 322 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET); 323 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *) 324 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent), 325 TYPE_VIRTIO_CCW_DEVICE); 326 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *) 327 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW); 328 329 if (virtio_ccw_dev) { 330 ccw_dev = CCW_DEVICE(virtio_ccw_dev); 331 if (virtio_net_dev) { 332 tmp_dt = CCW_DEVTYPE_VIRTIO_NET; 333 } else { 334 tmp_dt = CCW_DEVTYPE_VIRTIO; 335 } 336 } else if (vfio_ccw_dev) { 337 ccw_dev = CCW_DEVICE(vfio_ccw_dev); 338 tmp_dt = CCW_DEVTYPE_VFIO; 339 } else { 340 SCSIDevice *sd = (SCSIDevice *) 341 object_dynamic_cast(OBJECT(dev_st), 342 TYPE_SCSI_DEVICE); 343 if (sd) { 344 SCSIBus *bus = scsi_bus_from_device(sd); 345 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus); 346 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, 347 vdev); 348 349 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw), 350 TYPE_CCW_DEVICE); 351 tmp_dt = CCW_DEVTYPE_SCSI; 352 } 353 } 354 } 355 if (devtype) { 356 *devtype = tmp_dt; 357 } 358 return ccw_dev; 359 } 360 361 static bool s390_gen_initial_iplb(S390IPLState *ipl) 362 { 363 DeviceState *dev_st; 364 CcwDevice *ccw_dev = NULL; 365 SCSIDevice *sd; 366 int devtype; 367 368 dev_st = get_boot_device(0); 369 if (dev_st) { 370 ccw_dev = s390_get_ccw_device(dev_st, &devtype); 371 } 372 373 /* 374 * Currently allow IPL only from CCW devices. 375 */ 376 if (ccw_dev) { 377 switch (devtype) { 378 case CCW_DEVTYPE_SCSI: 379 sd = SCSI_DEVICE(dev_st); 380 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); 381 ipl->iplb.blk0_len = 382 cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN); 383 ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI; 384 ipl->iplb.scsi.lun = cpu_to_be32(sd->lun); 385 ipl->iplb.scsi.target = cpu_to_be16(sd->id); 386 ipl->iplb.scsi.channel = cpu_to_be16(sd->channel); 387 ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno); 388 ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3; 389 break; 390 case CCW_DEVTYPE_VFIO: 391 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 392 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 393 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 394 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 395 break; 396 case CCW_DEVTYPE_VIRTIO_NET: 397 ipl->netboot = true; 398 /* Fall through to CCW_DEVTYPE_VIRTIO case */ 399 case CCW_DEVTYPE_VIRTIO: 400 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 401 ipl->iplb.blk0_len = 402 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN); 403 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 404 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 405 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 406 break; 407 } 408 409 if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) { 410 ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID; 411 } 412 413 return true; 414 } 415 416 return false; 417 } 418 419 int s390_ipl_set_loadparm(uint8_t *loadparm) 420 { 421 MachineState *machine = MACHINE(qdev_get_machine()); 422 char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL); 423 424 if (lp) { 425 int i; 426 427 /* lp is an uppercase string without leading/embedded spaces */ 428 for (i = 0; i < 8 && lp[i]; i++) { 429 loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]]; 430 } 431 432 if (i < 8) { 433 memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */ 434 } 435 436 g_free(lp); 437 return 0; 438 } 439 440 return -1; 441 } 442 443 static int load_netboot_image(Error **errp) 444 { 445 S390IPLState *ipl = get_ipl_device(); 446 char *netboot_filename; 447 MemoryRegion *sysmem = get_system_memory(); 448 MemoryRegion *mr = NULL; 449 void *ram_ptr = NULL; 450 int img_size = -1; 451 452 mr = memory_region_find(sysmem, 0, 1).mr; 453 if (!mr) { 454 error_setg(errp, "Failed to find memory region at address 0"); 455 return -1; 456 } 457 458 ram_ptr = memory_region_get_ram_ptr(mr); 459 if (!ram_ptr) { 460 error_setg(errp, "No RAM found"); 461 goto unref_mr; 462 } 463 464 netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw); 465 if (netboot_filename == NULL) { 466 error_setg(errp, "Could not find network bootloader '%s'", 467 ipl->netboot_fw); 468 goto unref_mr; 469 } 470 471 img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL, 472 &ipl->start_addr, 473 NULL, NULL, 1, EM_S390, 0, 0, NULL, false); 474 475 if (img_size < 0) { 476 img_size = load_image_size(netboot_filename, ram_ptr, ram_size); 477 ipl->start_addr = KERN_IMAGE_START; 478 } 479 480 if (img_size < 0) { 481 error_setg(errp, "Failed to load network bootloader"); 482 } 483 484 g_free(netboot_filename); 485 486 unref_mr: 487 memory_region_unref(mr); 488 return img_size; 489 } 490 491 static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb, 492 int virtio_id) 493 { 494 uint8_t cssid; 495 uint8_t ssid; 496 uint16_t devno; 497 uint16_t schid; 498 SubchDev *sch = NULL; 499 500 if (iplb->pbt != S390_IPL_TYPE_CCW) { 501 return false; 502 } 503 504 devno = be16_to_cpu(iplb->ccw.devno); 505 ssid = iplb->ccw.ssid & 3; 506 507 for (schid = 0; schid < MAX_SCHID; schid++) { 508 for (cssid = 0; cssid < MAX_CSSID; cssid++) { 509 sch = css_find_subch(1, cssid, ssid, schid); 510 511 if (sch && sch->devno == devno) { 512 return sch->id.cu_model == virtio_id; 513 } 514 } 515 } 516 return false; 517 } 518 519 static bool is_virtio_net_device(IplParameterBlock *iplb) 520 { 521 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET); 522 } 523 524 static bool is_virtio_scsi_device(IplParameterBlock *iplb) 525 { 526 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI); 527 } 528 529 void s390_ipl_update_diag308(IplParameterBlock *iplb) 530 { 531 S390IPLState *ipl = get_ipl_device(); 532 533 ipl->iplb = *iplb; 534 ipl->iplb_valid = true; 535 ipl->netboot = is_virtio_net_device(iplb); 536 } 537 538 IplParameterBlock *s390_ipl_get_iplb(void) 539 { 540 S390IPLState *ipl = get_ipl_device(); 541 542 if (!ipl->iplb_valid) { 543 return NULL; 544 } 545 return &ipl->iplb; 546 } 547 548 void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type) 549 { 550 S390IPLState *ipl = get_ipl_device(); 551 552 if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) { 553 /* use CPU 0 for full resets */ 554 ipl->reset_cpu_index = 0; 555 } else { 556 ipl->reset_cpu_index = cs->cpu_index; 557 } 558 ipl->reset_type = reset_type; 559 560 if (reset_type == S390_RESET_REIPL && 561 ipl->iplb_valid && 562 !ipl->netboot && 563 ipl->iplb.pbt == S390_IPL_TYPE_CCW && 564 is_virtio_scsi_device(&ipl->iplb)) { 565 CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL); 566 567 if (ccw_dev && 568 cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno && 569 (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) { 570 /* 571 * this is the original boot device's SCSI 572 * so restore IPL parameter info from it 573 */ 574 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 575 } 576 } 577 if (reset_type == S390_RESET_MODIFIED_CLEAR || 578 reset_type == S390_RESET_LOAD_NORMAL) { 579 /* ignore -no-reboot, send no event */ 580 qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET); 581 } else { 582 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 583 } 584 /* as this is triggered by a CPU, make sure to exit the loop */ 585 if (tcg_enabled()) { 586 cpu_loop_exit(cs); 587 } 588 } 589 590 void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type) 591 { 592 S390IPLState *ipl = get_ipl_device(); 593 594 *cs = qemu_get_cpu(ipl->reset_cpu_index); 595 if (!*cs) { 596 /* use any CPU */ 597 *cs = first_cpu; 598 } 599 *reset_type = ipl->reset_type; 600 } 601 602 void s390_ipl_clear_reset_request(void) 603 { 604 S390IPLState *ipl = get_ipl_device(); 605 606 ipl->reset_type = S390_RESET_EXTERNAL; 607 /* use CPU 0 for full resets */ 608 ipl->reset_cpu_index = 0; 609 } 610 611 static void s390_ipl_prepare_qipl(S390CPU *cpu) 612 { 613 S390IPLState *ipl = get_ipl_device(); 614 uint8_t *addr; 615 uint64_t len = 4096; 616 617 addr = cpu_physical_memory_map(cpu->env.psa, &len, 1); 618 if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) { 619 error_report("Cannot set QEMU IPL parameters"); 620 return; 621 } 622 memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters)); 623 cpu_physical_memory_unmap(addr, len, 1, len); 624 } 625 626 void s390_ipl_prepare_cpu(S390CPU *cpu) 627 { 628 S390IPLState *ipl = get_ipl_device(); 629 Error *err = NULL; 630 631 cpu->env.psw.addr = ipl->start_addr; 632 cpu->env.psw.mask = IPL_PSW_MASK; 633 634 if (!ipl->kernel || ipl->iplb_valid) { 635 cpu->env.psw.addr = ipl->bios_start_addr; 636 if (!ipl->iplb_valid) { 637 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 638 } 639 } 640 if (ipl->netboot) { 641 if (load_netboot_image(&err) < 0) { 642 error_report_err(err); 643 exit(1); 644 } 645 ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr); 646 } 647 s390_ipl_set_boot_menu(ipl); 648 s390_ipl_prepare_qipl(cpu); 649 } 650 651 static void s390_ipl_reset(DeviceState *dev) 652 { 653 S390IPLState *ipl = S390_IPL(dev); 654 655 if (ipl->reset_type != S390_RESET_REIPL) { 656 ipl->iplb_valid = false; 657 memset(&ipl->iplb, 0, sizeof(IplParameterBlock)); 658 } 659 } 660 661 static void s390_ipl_class_init(ObjectClass *klass, void *data) 662 { 663 DeviceClass *dc = DEVICE_CLASS(klass); 664 665 dc->realize = s390_ipl_realize; 666 dc->props = s390_ipl_properties; 667 dc->reset = s390_ipl_reset; 668 dc->vmsd = &vmstate_ipl; 669 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 670 /* Reason: Loads the ROMs and thus can only be used one time - internally */ 671 dc->user_creatable = false; 672 } 673 674 static const TypeInfo s390_ipl_info = { 675 .class_init = s390_ipl_class_init, 676 .parent = TYPE_DEVICE, 677 .name = TYPE_S390_IPL, 678 .instance_size = sizeof(S390IPLState), 679 }; 680 681 static void s390_ipl_register_types(void) 682 { 683 type_register_static(&s390_ipl_info); 684 } 685 686 type_init(s390_ipl_register_types) 687