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 "qapi/error.h" 16 #include "sysemu/sysemu.h" 17 #include "cpu.h" 18 #include "elf.h" 19 #include "hw/loader.h" 20 #include "hw/boards.h" 21 #include "hw/s390x/virtio-ccw.h" 22 #include "hw/s390x/vfio-ccw.h" 23 #include "hw/s390x/css.h" 24 #include "hw/s390x/ebcdic.h" 25 #include "ipl.h" 26 #include "qemu/error-report.h" 27 #include "qemu/config-file.h" 28 #include "qemu/cutils.h" 29 #include "qemu/option.h" 30 #include "exec/exec-all.h" 31 32 #define KERN_IMAGE_START 0x010000UL 33 #define LINUX_MAGIC_ADDR 0x010008UL 34 #define KERN_PARM_AREA 0x010480UL 35 #define INITRD_START 0x800000UL 36 #define INITRD_PARM_START 0x010408UL 37 #define PARMFILE_START 0x001000UL 38 #define ZIPL_IMAGE_START 0x009000UL 39 #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) 40 41 static bool iplb_extended_needed(void *opaque) 42 { 43 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL)); 44 45 return ipl->iplbext_migration; 46 } 47 48 static const VMStateDescription vmstate_iplb_extended = { 49 .name = "ipl/iplb_extended", 50 .version_id = 0, 51 .minimum_version_id = 0, 52 .needed = iplb_extended_needed, 53 .fields = (VMStateField[]) { 54 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200), 55 VMSTATE_END_OF_LIST() 56 } 57 }; 58 59 static const VMStateDescription vmstate_iplb = { 60 .name = "ipl/iplb", 61 .version_id = 0, 62 .minimum_version_id = 0, 63 .fields = (VMStateField[]) { 64 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110), 65 VMSTATE_UINT16(devno, IplParameterBlock), 66 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88), 67 VMSTATE_END_OF_LIST() 68 }, 69 .subsections = (const VMStateDescription*[]) { 70 &vmstate_iplb_extended, 71 NULL 72 } 73 }; 74 75 static const VMStateDescription vmstate_ipl = { 76 .name = "ipl", 77 .version_id = 0, 78 .minimum_version_id = 0, 79 .fields = (VMStateField[]) { 80 VMSTATE_UINT64(compat_start_addr, S390IPLState), 81 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState), 82 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock), 83 VMSTATE_BOOL(iplb_valid, S390IPLState), 84 VMSTATE_UINT8(cssid, S390IPLState), 85 VMSTATE_UINT8(ssid, S390IPLState), 86 VMSTATE_UINT16(devno, S390IPLState), 87 VMSTATE_END_OF_LIST() 88 } 89 }; 90 91 static S390IPLState *get_ipl_device(void) 92 { 93 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL)); 94 } 95 96 static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) 97 { 98 uint64_t dstaddr = *(uint64_t *) opaque; 99 /* 100 * Assuming that our s390-ccw.img was linked for starting at address 0, 101 * we can simply add the destination address for the final location 102 */ 103 return srcaddr + dstaddr; 104 } 105 106 static void s390_ipl_realize(DeviceState *dev, Error **errp) 107 { 108 S390IPLState *ipl = S390_IPL(dev); 109 uint32_t *ipl_psw; 110 uint64_t pentry; 111 char *magic; 112 int kernel_size; 113 Error *err = NULL; 114 115 int bios_size; 116 char *bios_filename; 117 118 /* 119 * Always load the bios if it was enforced, 120 * even if an external kernel has been defined. 121 */ 122 if (!ipl->kernel || ipl->enforce_bios) { 123 uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; 124 125 if (bios_name == NULL) { 126 bios_name = ipl->firmware; 127 } 128 129 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 130 if (bios_filename == NULL) { 131 error_setg(&err, "could not find stage1 bootloader"); 132 goto error; 133 } 134 135 bios_size = load_elf(bios_filename, NULL, 136 bios_translate_addr, &fwbase, 137 &ipl->bios_start_addr, NULL, NULL, 1, 138 EM_S390, 0, 0); 139 if (bios_size > 0) { 140 /* Adjust ELF start address to final location */ 141 ipl->bios_start_addr += fwbase; 142 } else { 143 /* Try to load non-ELF file */ 144 bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, 145 4096); 146 ipl->bios_start_addr = ZIPL_IMAGE_START; 147 } 148 g_free(bios_filename); 149 150 if (bios_size == -1) { 151 error_setg(&err, "could not load bootloader '%s'", bios_name); 152 goto error; 153 } 154 155 /* default boot target is the bios */ 156 ipl->start_addr = ipl->bios_start_addr; 157 } 158 159 if (ipl->kernel) { 160 kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL, 161 &pentry, NULL, 162 NULL, 1, EM_S390, 0, 0); 163 if (kernel_size < 0) { 164 kernel_size = load_image_targphys(ipl->kernel, 0, ram_size); 165 if (kernel_size < 0) { 166 error_setg(&err, "could not load kernel '%s'", ipl->kernel); 167 goto error; 168 } 169 /* if this is Linux use KERN_IMAGE_START */ 170 magic = rom_ptr(LINUX_MAGIC_ADDR, 6); 171 if (magic && !memcmp(magic, "S390EP", 6)) { 172 pentry = KERN_IMAGE_START; 173 } else { 174 /* if not Linux load the address of the (short) IPL PSW */ 175 ipl_psw = rom_ptr(4, 4); 176 if (ipl_psw) { 177 pentry = be32_to_cpu(*ipl_psw) & 0x7fffffffUL; 178 } else { 179 error_setg(&err, "Could not get IPL PSW"); 180 goto error; 181 } 182 } 183 } 184 /* 185 * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the 186 * kernel parameters here as well. Note: For old kernels (up to 3.2) 187 * we can not rely on the ELF entry point - it was 0x800 (the SALIPL 188 * loader) and it won't work. For this case we force it to 0x10000, too. 189 */ 190 if (pentry == KERN_IMAGE_START || pentry == 0x800) { 191 char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1); 192 ipl->start_addr = KERN_IMAGE_START; 193 /* Overwrite parameters in the kernel image, which are "rom" */ 194 if (parm_area) { 195 strcpy(parm_area, ipl->cmdline); 196 } 197 } else { 198 ipl->start_addr = pentry; 199 } 200 201 if (ipl->initrd) { 202 ram_addr_t initrd_offset; 203 int initrd_size; 204 uint64_t *romptr; 205 206 initrd_offset = INITRD_START; 207 while (kernel_size + 0x100000 > initrd_offset) { 208 initrd_offset += 0x100000; 209 } 210 initrd_size = load_image_targphys(ipl->initrd, initrd_offset, 211 ram_size - initrd_offset); 212 if (initrd_size == -1) { 213 error_setg(&err, "could not load initrd '%s'", ipl->initrd); 214 goto error; 215 } 216 217 /* 218 * we have to overwrite values in the kernel image, 219 * which are "rom" 220 */ 221 romptr = rom_ptr(INITRD_PARM_START, 16); 222 if (romptr) { 223 stq_p(romptr, initrd_offset); 224 stq_p(romptr + 1, initrd_size); 225 } 226 } 227 } 228 /* 229 * Don't ever use the migrated values, they could come from a different 230 * BIOS and therefore don't work. But still migrate the values, so 231 * QEMUs relying on it don't break. 232 */ 233 ipl->compat_start_addr = ipl->start_addr; 234 ipl->compat_bios_start_addr = ipl->bios_start_addr; 235 qemu_register_reset(qdev_reset_all_fn, dev); 236 error: 237 error_propagate(errp, err); 238 } 239 240 static Property s390_ipl_properties[] = { 241 DEFINE_PROP_STRING("kernel", S390IPLState, kernel), 242 DEFINE_PROP_STRING("initrd", S390IPLState, initrd), 243 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline), 244 DEFINE_PROP_STRING("firmware", S390IPLState, firmware), 245 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw), 246 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false), 247 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration, 248 true), 249 DEFINE_PROP_END_OF_LIST(), 250 }; 251 252 static void s390_ipl_set_boot_menu(S390IPLState *ipl) 253 { 254 QemuOptsList *plist = qemu_find_opts("boot-opts"); 255 QemuOpts *opts = QTAILQ_FIRST(&plist->head); 256 const char *tmp; 257 unsigned long splash_time = 0; 258 259 if (!get_boot_device(0)) { 260 if (boot_menu) { 261 error_report("boot menu requires a bootindex to be specified for " 262 "the IPL device"); 263 } 264 return; 265 } 266 267 switch (ipl->iplb.pbt) { 268 case S390_IPL_TYPE_CCW: 269 /* In the absence of -boot menu, use zipl parameters */ 270 if (!qemu_opt_get(opts, "menu")) { 271 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL; 272 return; 273 } 274 break; 275 case S390_IPL_TYPE_QEMU_SCSI: 276 break; 277 default: 278 if (boot_menu) { 279 error_report("boot menu is not supported for this device type"); 280 } 281 return; 282 } 283 284 if (!boot_menu) { 285 return; 286 } 287 288 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD; 289 290 tmp = qemu_opt_get(opts, "splash-time"); 291 292 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) { 293 error_report("splash-time is invalid, forcing it to 0"); 294 ipl->qipl.boot_menu_timeout = 0; 295 return; 296 } 297 298 if (splash_time > 0xffffffff) { 299 error_report("splash-time is too large, forcing it to max value"); 300 ipl->qipl.boot_menu_timeout = 0xffffffff; 301 return; 302 } 303 304 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time); 305 } 306 307 #define CCW_DEVTYPE_NONE 0x00 308 #define CCW_DEVTYPE_VIRTIO 0x01 309 #define CCW_DEVTYPE_VIRTIO_NET 0x02 310 #define CCW_DEVTYPE_SCSI 0x03 311 #define CCW_DEVTYPE_VFIO 0x04 312 313 static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype) 314 { 315 CcwDevice *ccw_dev = NULL; 316 int tmp_dt = CCW_DEVTYPE_NONE; 317 318 if (dev_st) { 319 VirtIONet *virtio_net_dev = (VirtIONet *) 320 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET); 321 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *) 322 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent), 323 TYPE_VIRTIO_CCW_DEVICE); 324 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *) 325 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW); 326 327 if (virtio_ccw_dev) { 328 ccw_dev = CCW_DEVICE(virtio_ccw_dev); 329 if (virtio_net_dev) { 330 tmp_dt = CCW_DEVTYPE_VIRTIO_NET; 331 } else { 332 tmp_dt = CCW_DEVTYPE_VIRTIO; 333 } 334 } else if (vfio_ccw_dev) { 335 ccw_dev = CCW_DEVICE(vfio_ccw_dev); 336 tmp_dt = CCW_DEVTYPE_VFIO; 337 } else { 338 SCSIDevice *sd = (SCSIDevice *) 339 object_dynamic_cast(OBJECT(dev_st), 340 TYPE_SCSI_DEVICE); 341 if (sd) { 342 SCSIBus *bus = scsi_bus_from_device(sd); 343 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus); 344 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, 345 vdev); 346 347 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw), 348 TYPE_CCW_DEVICE); 349 tmp_dt = CCW_DEVTYPE_SCSI; 350 } 351 } 352 } 353 if (devtype) { 354 *devtype = tmp_dt; 355 } 356 return ccw_dev; 357 } 358 359 static bool s390_gen_initial_iplb(S390IPLState *ipl) 360 { 361 DeviceState *dev_st; 362 CcwDevice *ccw_dev = NULL; 363 SCSIDevice *sd; 364 int devtype; 365 366 dev_st = get_boot_device(0); 367 if (dev_st) { 368 ccw_dev = s390_get_ccw_device(dev_st, &devtype); 369 } 370 371 /* 372 * Currently allow IPL only from CCW devices. 373 */ 374 if (ccw_dev) { 375 switch (devtype) { 376 case CCW_DEVTYPE_SCSI: 377 sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st), 378 TYPE_SCSI_DEVICE); 379 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); 380 ipl->iplb.blk0_len = 381 cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN); 382 ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI; 383 ipl->iplb.scsi.lun = cpu_to_be32(sd->lun); 384 ipl->iplb.scsi.target = cpu_to_be16(sd->id); 385 ipl->iplb.scsi.channel = cpu_to_be16(sd->channel); 386 ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno); 387 ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3; 388 break; 389 case CCW_DEVTYPE_VFIO: 390 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 391 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 392 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 393 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 394 break; 395 case CCW_DEVTYPE_VIRTIO_NET: 396 ipl->netboot = true; 397 /* Fall through to CCW_DEVTYPE_VIRTIO case */ 398 case CCW_DEVTYPE_VIRTIO: 399 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 400 ipl->iplb.blk0_len = 401 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN); 402 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 403 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 404 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 405 break; 406 } 407 408 if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) { 409 ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID; 410 } 411 412 return true; 413 } 414 415 return false; 416 } 417 418 int s390_ipl_set_loadparm(uint8_t *loadparm) 419 { 420 MachineState *machine = MACHINE(qdev_get_machine()); 421 char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL); 422 423 if (lp) { 424 int i; 425 426 /* lp is an uppercase string without leading/embedded spaces */ 427 for (i = 0; i < 8 && lp[i]; i++) { 428 loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]]; 429 } 430 431 if (i < 8) { 432 memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */ 433 } 434 435 g_free(lp); 436 return 0; 437 } 438 439 return -1; 440 } 441 442 static int load_netboot_image(Error **errp) 443 { 444 S390IPLState *ipl = get_ipl_device(); 445 char *netboot_filename; 446 MemoryRegion *sysmem = get_system_memory(); 447 MemoryRegion *mr = NULL; 448 void *ram_ptr = NULL; 449 int img_size = -1; 450 451 mr = memory_region_find(sysmem, 0, 1).mr; 452 if (!mr) { 453 error_setg(errp, "Failed to find memory region at address 0"); 454 return -1; 455 } 456 457 ram_ptr = memory_region_get_ram_ptr(mr); 458 if (!ram_ptr) { 459 error_setg(errp, "No RAM found"); 460 goto unref_mr; 461 } 462 463 netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw); 464 if (netboot_filename == NULL) { 465 error_setg(errp, "Could not find network bootloader '%s'", 466 ipl->netboot_fw); 467 goto unref_mr; 468 } 469 470 img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL, 471 &ipl->start_addr, 472 NULL, NULL, 1, EM_S390, 0, 0, NULL, false); 473 474 if (img_size < 0) { 475 img_size = load_image_size(netboot_filename, ram_ptr, ram_size); 476 ipl->start_addr = KERN_IMAGE_START; 477 } 478 479 if (img_size < 0) { 480 error_setg(errp, "Failed to load network bootloader"); 481 } 482 483 g_free(netboot_filename); 484 485 unref_mr: 486 memory_region_unref(mr); 487 return img_size; 488 } 489 490 static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb, 491 int virtio_id) 492 { 493 uint8_t cssid; 494 uint8_t ssid; 495 uint16_t devno; 496 uint16_t schid; 497 SubchDev *sch = NULL; 498 499 if (iplb->pbt != S390_IPL_TYPE_CCW) { 500 return false; 501 } 502 503 devno = be16_to_cpu(iplb->ccw.devno); 504 ssid = iplb->ccw.ssid & 3; 505 506 for (schid = 0; schid < MAX_SCHID; schid++) { 507 for (cssid = 0; cssid < MAX_CSSID; cssid++) { 508 sch = css_find_subch(1, cssid, ssid, schid); 509 510 if (sch && sch->devno == devno) { 511 return sch->id.cu_model == virtio_id; 512 } 513 } 514 } 515 return false; 516 } 517 518 static bool is_virtio_net_device(IplParameterBlock *iplb) 519 { 520 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET); 521 } 522 523 static bool is_virtio_scsi_device(IplParameterBlock *iplb) 524 { 525 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI); 526 } 527 528 void s390_ipl_update_diag308(IplParameterBlock *iplb) 529 { 530 S390IPLState *ipl = get_ipl_device(); 531 532 ipl->iplb = *iplb; 533 ipl->iplb_valid = true; 534 ipl->netboot = is_virtio_net_device(iplb); 535 } 536 537 IplParameterBlock *s390_ipl_get_iplb(void) 538 { 539 S390IPLState *ipl = get_ipl_device(); 540 541 if (!ipl->iplb_valid) { 542 return NULL; 543 } 544 return &ipl->iplb; 545 } 546 547 void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type) 548 { 549 S390IPLState *ipl = get_ipl_device(); 550 551 if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) { 552 /* use CPU 0 for full resets */ 553 ipl->reset_cpu_index = 0; 554 } else { 555 ipl->reset_cpu_index = cs->cpu_index; 556 } 557 ipl->reset_type = reset_type; 558 559 if (reset_type == S390_RESET_REIPL && 560 ipl->iplb_valid && 561 !ipl->netboot && 562 ipl->iplb.pbt == S390_IPL_TYPE_CCW && 563 is_virtio_scsi_device(&ipl->iplb)) { 564 CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL); 565 566 if (ccw_dev && 567 cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno && 568 (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) { 569 /* 570 * this is the original boot device's SCSI 571 * so restore IPL parameter info from it 572 */ 573 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 574 } 575 } 576 if (reset_type == S390_RESET_MODIFIED_CLEAR || 577 reset_type == S390_RESET_LOAD_NORMAL) { 578 /* ignore -no-reboot, send no event */ 579 qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET); 580 } else { 581 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 582 } 583 /* as this is triggered by a CPU, make sure to exit the loop */ 584 if (tcg_enabled()) { 585 cpu_loop_exit(cs); 586 } 587 } 588 589 void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type) 590 { 591 S390IPLState *ipl = get_ipl_device(); 592 593 *cs = qemu_get_cpu(ipl->reset_cpu_index); 594 if (!*cs) { 595 /* use any CPU */ 596 *cs = first_cpu; 597 } 598 *reset_type = ipl->reset_type; 599 } 600 601 void s390_ipl_clear_reset_request(void) 602 { 603 S390IPLState *ipl = get_ipl_device(); 604 605 ipl->reset_type = S390_RESET_EXTERNAL; 606 /* use CPU 0 for full resets */ 607 ipl->reset_cpu_index = 0; 608 } 609 610 static void s390_ipl_prepare_qipl(S390CPU *cpu) 611 { 612 S390IPLState *ipl = get_ipl_device(); 613 uint8_t *addr; 614 uint64_t len = 4096; 615 616 addr = cpu_physical_memory_map(cpu->env.psa, &len, 1); 617 if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) { 618 error_report("Cannot set QEMU IPL parameters"); 619 return; 620 } 621 memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters)); 622 cpu_physical_memory_unmap(addr, len, 1, len); 623 } 624 625 void s390_ipl_prepare_cpu(S390CPU *cpu) 626 { 627 S390IPLState *ipl = get_ipl_device(); 628 Error *err = NULL; 629 630 cpu->env.psw.addr = ipl->start_addr; 631 cpu->env.psw.mask = IPL_PSW_MASK; 632 633 if (!ipl->kernel || ipl->iplb_valid) { 634 cpu->env.psw.addr = ipl->bios_start_addr; 635 if (!ipl->iplb_valid) { 636 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 637 } 638 } 639 if (ipl->netboot) { 640 if (load_netboot_image(&err) < 0) { 641 error_report_err(err); 642 exit(1); 643 } 644 ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr); 645 } 646 s390_ipl_set_boot_menu(ipl); 647 s390_ipl_prepare_qipl(cpu); 648 } 649 650 static void s390_ipl_reset(DeviceState *dev) 651 { 652 S390IPLState *ipl = S390_IPL(dev); 653 654 if (ipl->reset_type != S390_RESET_REIPL) { 655 ipl->iplb_valid = false; 656 memset(&ipl->iplb, 0, sizeof(IplParameterBlock)); 657 } 658 } 659 660 static void s390_ipl_class_init(ObjectClass *klass, void *data) 661 { 662 DeviceClass *dc = DEVICE_CLASS(klass); 663 664 dc->realize = s390_ipl_realize; 665 dc->props = s390_ipl_properties; 666 dc->reset = s390_ipl_reset; 667 dc->vmsd = &vmstate_ipl; 668 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 669 /* Reason: Loads the ROMs and thus can only be used one time - internally */ 670 dc->user_creatable = false; 671 } 672 673 static const TypeInfo s390_ipl_info = { 674 .class_init = s390_ipl_class_init, 675 .parent = TYPE_DEVICE, 676 .name = TYPE_S390_IPL, 677 .instance_size = sizeof(S390IPLState), 678 }; 679 680 static void s390_ipl_register_types(void) 681 { 682 type_register_static(&s390_ipl_info); 683 } 684 685 type_init(s390_ipl_register_types) 686