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 "sysemu/tcg.h" 18 #include "cpu.h" 19 #include "elf.h" 20 #include "hw/loader.h" 21 #include "hw/boards.h" 22 #include "hw/s390x/virtio-ccw.h" 23 #include "hw/s390x/vfio-ccw.h" 24 #include "hw/s390x/css.h" 25 #include "hw/s390x/ebcdic.h" 26 #include "ipl.h" 27 #include "qemu/error-report.h" 28 #include "qemu/config-file.h" 29 #include "qemu/cutils.h" 30 #include "qemu/option.h" 31 #include "exec/exec-all.h" 32 33 #define KERN_IMAGE_START 0x010000UL 34 #define LINUX_MAGIC_ADDR 0x010008UL 35 #define KERN_PARM_AREA 0x010480UL 36 #define INITRD_START 0x800000UL 37 #define INITRD_PARM_START 0x010408UL 38 #define PARMFILE_START 0x001000UL 39 #define ZIPL_IMAGE_START 0x009000UL 40 #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) 41 42 static bool iplb_extended_needed(void *opaque) 43 { 44 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL)); 45 46 return ipl->iplbext_migration; 47 } 48 49 static const VMStateDescription vmstate_iplb_extended = { 50 .name = "ipl/iplb_extended", 51 .version_id = 0, 52 .minimum_version_id = 0, 53 .needed = iplb_extended_needed, 54 .fields = (VMStateField[]) { 55 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200), 56 VMSTATE_END_OF_LIST() 57 } 58 }; 59 60 static const VMStateDescription vmstate_iplb = { 61 .name = "ipl/iplb", 62 .version_id = 0, 63 .minimum_version_id = 0, 64 .fields = (VMStateField[]) { 65 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110), 66 VMSTATE_UINT16(devno, IplParameterBlock), 67 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88), 68 VMSTATE_END_OF_LIST() 69 }, 70 .subsections = (const VMStateDescription*[]) { 71 &vmstate_iplb_extended, 72 NULL 73 } 74 }; 75 76 static const VMStateDescription vmstate_ipl = { 77 .name = "ipl", 78 .version_id = 0, 79 .minimum_version_id = 0, 80 .fields = (VMStateField[]) { 81 VMSTATE_UINT64(compat_start_addr, S390IPLState), 82 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState), 83 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock), 84 VMSTATE_BOOL(iplb_valid, S390IPLState), 85 VMSTATE_UINT8(cssid, S390IPLState), 86 VMSTATE_UINT8(ssid, S390IPLState), 87 VMSTATE_UINT16(devno, S390IPLState), 88 VMSTATE_END_OF_LIST() 89 } 90 }; 91 92 static S390IPLState *get_ipl_device(void) 93 { 94 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL)); 95 } 96 97 static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) 98 { 99 uint64_t dstaddr = *(uint64_t *) opaque; 100 /* 101 * Assuming that our s390-ccw.img was linked for starting at address 0, 102 * we can simply add the destination address for the final location 103 */ 104 return srcaddr + dstaddr; 105 } 106 107 static void s390_ipl_realize(DeviceState *dev, Error **errp) 108 { 109 S390IPLState *ipl = S390_IPL(dev); 110 uint32_t *ipl_psw; 111 uint64_t pentry; 112 char *magic; 113 int kernel_size; 114 Error *err = NULL; 115 116 int bios_size; 117 char *bios_filename; 118 119 /* 120 * Always load the bios if it was enforced, 121 * even if an external kernel has been defined. 122 */ 123 if (!ipl->kernel || ipl->enforce_bios) { 124 uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; 125 126 if (bios_name == NULL) { 127 bios_name = ipl->firmware; 128 } 129 130 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 131 if (bios_filename == NULL) { 132 error_setg(&err, "could not find stage1 bootloader"); 133 goto error; 134 } 135 136 bios_size = load_elf(bios_filename, NULL, 137 bios_translate_addr, &fwbase, 138 &ipl->bios_start_addr, NULL, NULL, 1, 139 EM_S390, 0, 0); 140 if (bios_size > 0) { 141 /* Adjust ELF start address to final location */ 142 ipl->bios_start_addr += fwbase; 143 } else { 144 /* Try to load non-ELF file */ 145 bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, 146 4096); 147 ipl->bios_start_addr = ZIPL_IMAGE_START; 148 } 149 g_free(bios_filename); 150 151 if (bios_size == -1) { 152 error_setg(&err, "could not load bootloader '%s'", bios_name); 153 goto error; 154 } 155 156 /* default boot target is the bios */ 157 ipl->start_addr = ipl->bios_start_addr; 158 } 159 160 if (ipl->kernel) { 161 kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL, 162 &pentry, NULL, 163 NULL, 1, EM_S390, 0, 0); 164 if (kernel_size < 0) { 165 kernel_size = load_image_targphys(ipl->kernel, 0, ram_size); 166 if (kernel_size < 0) { 167 error_setg(&err, "could not load kernel '%s'", ipl->kernel); 168 goto error; 169 } 170 /* if this is Linux use KERN_IMAGE_START */ 171 magic = rom_ptr(LINUX_MAGIC_ADDR, 6); 172 if (magic && !memcmp(magic, "S390EP", 6)) { 173 pentry = KERN_IMAGE_START; 174 } else { 175 /* if not Linux load the address of the (short) IPL PSW */ 176 ipl_psw = rom_ptr(4, 4); 177 if (ipl_psw) { 178 pentry = be32_to_cpu(*ipl_psw) & 0x7fffffffUL; 179 } else { 180 error_setg(&err, "Could not get IPL PSW"); 181 goto error; 182 } 183 } 184 } 185 /* 186 * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the 187 * kernel parameters here as well. Note: For old kernels (up to 3.2) 188 * we can not rely on the ELF entry point - it was 0x800 (the SALIPL 189 * loader) and it won't work. For this case we force it to 0x10000, too. 190 */ 191 if (pentry == KERN_IMAGE_START || pentry == 0x800) { 192 char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1); 193 ipl->start_addr = KERN_IMAGE_START; 194 /* Overwrite parameters in the kernel image, which are "rom" */ 195 if (parm_area) { 196 strcpy(parm_area, ipl->cmdline); 197 } 198 } else { 199 ipl->start_addr = pentry; 200 } 201 202 if (ipl->initrd) { 203 ram_addr_t initrd_offset; 204 int initrd_size; 205 uint64_t *romptr; 206 207 initrd_offset = INITRD_START; 208 while (kernel_size + 0x100000 > initrd_offset) { 209 initrd_offset += 0x100000; 210 } 211 initrd_size = load_image_targphys(ipl->initrd, initrd_offset, 212 ram_size - initrd_offset); 213 if (initrd_size == -1) { 214 error_setg(&err, "could not load initrd '%s'", ipl->initrd); 215 goto error; 216 } 217 218 /* 219 * we have to overwrite values in the kernel image, 220 * which are "rom" 221 */ 222 romptr = rom_ptr(INITRD_PARM_START, 16); 223 if (romptr) { 224 stq_p(romptr, initrd_offset); 225 stq_p(romptr + 1, initrd_size); 226 } 227 } 228 } 229 /* 230 * Don't ever use the migrated values, they could come from a different 231 * BIOS and therefore don't work. But still migrate the values, so 232 * QEMUs relying on it don't break. 233 */ 234 ipl->compat_start_addr = ipl->start_addr; 235 ipl->compat_bios_start_addr = ipl->bios_start_addr; 236 qemu_register_reset(qdev_reset_all_fn, dev); 237 error: 238 error_propagate(errp, err); 239 } 240 241 static Property s390_ipl_properties[] = { 242 DEFINE_PROP_STRING("kernel", S390IPLState, kernel), 243 DEFINE_PROP_STRING("initrd", S390IPLState, initrd), 244 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline), 245 DEFINE_PROP_STRING("firmware", S390IPLState, firmware), 246 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw), 247 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false), 248 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration, 249 true), 250 DEFINE_PROP_END_OF_LIST(), 251 }; 252 253 static void s390_ipl_set_boot_menu(S390IPLState *ipl) 254 { 255 QemuOptsList *plist = qemu_find_opts("boot-opts"); 256 QemuOpts *opts = QTAILQ_FIRST(&plist->head); 257 const char *tmp; 258 unsigned long splash_time = 0; 259 260 if (!get_boot_device(0)) { 261 if (boot_menu) { 262 error_report("boot menu requires a bootindex to be specified for " 263 "the IPL device"); 264 } 265 return; 266 } 267 268 switch (ipl->iplb.pbt) { 269 case S390_IPL_TYPE_CCW: 270 /* In the absence of -boot menu, use zipl parameters */ 271 if (!qemu_opt_get(opts, "menu")) { 272 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL; 273 return; 274 } 275 break; 276 case S390_IPL_TYPE_QEMU_SCSI: 277 break; 278 default: 279 if (boot_menu) { 280 error_report("boot menu is not supported for this device type"); 281 } 282 return; 283 } 284 285 if (!boot_menu) { 286 return; 287 } 288 289 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD; 290 291 tmp = qemu_opt_get(opts, "splash-time"); 292 293 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) { 294 error_report("splash-time is invalid, forcing it to 0"); 295 ipl->qipl.boot_menu_timeout = 0; 296 return; 297 } 298 299 if (splash_time > 0xffffffff) { 300 error_report("splash-time is too large, forcing it to max value"); 301 ipl->qipl.boot_menu_timeout = 0xffffffff; 302 return; 303 } 304 305 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time); 306 } 307 308 #define CCW_DEVTYPE_NONE 0x00 309 #define CCW_DEVTYPE_VIRTIO 0x01 310 #define CCW_DEVTYPE_VIRTIO_NET 0x02 311 #define CCW_DEVTYPE_SCSI 0x03 312 #define CCW_DEVTYPE_VFIO 0x04 313 314 static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype) 315 { 316 CcwDevice *ccw_dev = NULL; 317 int tmp_dt = CCW_DEVTYPE_NONE; 318 319 if (dev_st) { 320 VirtIONet *virtio_net_dev = (VirtIONet *) 321 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET); 322 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *) 323 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent), 324 TYPE_VIRTIO_CCW_DEVICE); 325 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *) 326 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW); 327 328 if (virtio_ccw_dev) { 329 ccw_dev = CCW_DEVICE(virtio_ccw_dev); 330 if (virtio_net_dev) { 331 tmp_dt = CCW_DEVTYPE_VIRTIO_NET; 332 } else { 333 tmp_dt = CCW_DEVTYPE_VIRTIO; 334 } 335 } else if (vfio_ccw_dev) { 336 ccw_dev = CCW_DEVICE(vfio_ccw_dev); 337 tmp_dt = CCW_DEVTYPE_VFIO; 338 } else { 339 SCSIDevice *sd = (SCSIDevice *) 340 object_dynamic_cast(OBJECT(dev_st), 341 TYPE_SCSI_DEVICE); 342 if (sd) { 343 SCSIBus *bus = scsi_bus_from_device(sd); 344 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus); 345 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, 346 vdev); 347 348 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw), 349 TYPE_CCW_DEVICE); 350 tmp_dt = CCW_DEVTYPE_SCSI; 351 } 352 } 353 } 354 if (devtype) { 355 *devtype = tmp_dt; 356 } 357 return ccw_dev; 358 } 359 360 static bool s390_gen_initial_iplb(S390IPLState *ipl) 361 { 362 DeviceState *dev_st; 363 CcwDevice *ccw_dev = NULL; 364 SCSIDevice *sd; 365 int devtype; 366 367 dev_st = get_boot_device(0); 368 if (dev_st) { 369 ccw_dev = s390_get_ccw_device(dev_st, &devtype); 370 } 371 372 /* 373 * Currently allow IPL only from CCW devices. 374 */ 375 if (ccw_dev) { 376 switch (devtype) { 377 case CCW_DEVTYPE_SCSI: 378 sd = SCSI_DEVICE(dev_st); 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