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/reset.h" 18 #include "sysemu/runstate.h" 19 #include "sysemu/sysemu.h" 20 #include "sysemu/tcg.h" 21 #include "cpu.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 "ipl.h" 31 #include "qemu/error-report.h" 32 #include "qemu/config-file.h" 33 #include "qemu/cutils.h" 34 #include "qemu/option.h" 35 #include "exec/exec-all.h" 36 37 #define KERN_IMAGE_START 0x010000UL 38 #define LINUX_MAGIC_ADDR 0x010008UL 39 #define KERN_PARM_AREA 0x010480UL 40 #define INITRD_START 0x800000UL 41 #define INITRD_PARM_START 0x010408UL 42 #define PARMFILE_START 0x001000UL 43 #define ZIPL_IMAGE_START 0x009000UL 44 #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) 45 46 static bool iplb_extended_needed(void *opaque) 47 { 48 S390IPLState *ipl = S390_IPL(object_resolve_path(TYPE_S390_IPL, NULL)); 49 50 return ipl->iplbext_migration; 51 } 52 53 static const VMStateDescription vmstate_iplb_extended = { 54 .name = "ipl/iplb_extended", 55 .version_id = 0, 56 .minimum_version_id = 0, 57 .needed = iplb_extended_needed, 58 .fields = (VMStateField[]) { 59 VMSTATE_UINT8_ARRAY(reserved_ext, IplParameterBlock, 4096 - 200), 60 VMSTATE_END_OF_LIST() 61 } 62 }; 63 64 static const VMStateDescription vmstate_iplb = { 65 .name = "ipl/iplb", 66 .version_id = 0, 67 .minimum_version_id = 0, 68 .fields = (VMStateField[]) { 69 VMSTATE_UINT8_ARRAY(reserved1, IplParameterBlock, 110), 70 VMSTATE_UINT16(devno, IplParameterBlock), 71 VMSTATE_UINT8_ARRAY(reserved2, IplParameterBlock, 88), 72 VMSTATE_END_OF_LIST() 73 }, 74 .subsections = (const VMStateDescription*[]) { 75 &vmstate_iplb_extended, 76 NULL 77 } 78 }; 79 80 static const VMStateDescription vmstate_ipl = { 81 .name = "ipl", 82 .version_id = 0, 83 .minimum_version_id = 0, 84 .fields = (VMStateField[]) { 85 VMSTATE_UINT64(compat_start_addr, S390IPLState), 86 VMSTATE_UINT64(compat_bios_start_addr, S390IPLState), 87 VMSTATE_STRUCT(iplb, S390IPLState, 0, vmstate_iplb, IplParameterBlock), 88 VMSTATE_BOOL(iplb_valid, S390IPLState), 89 VMSTATE_UINT8(cssid, S390IPLState), 90 VMSTATE_UINT8(ssid, S390IPLState), 91 VMSTATE_UINT16(devno, S390IPLState), 92 VMSTATE_END_OF_LIST() 93 } 94 }; 95 96 static S390IPLState *get_ipl_device(void) 97 { 98 return S390_IPL(object_resolve_path_type("", TYPE_S390_IPL, NULL)); 99 } 100 101 static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) 102 { 103 uint64_t dstaddr = *(uint64_t *) opaque; 104 /* 105 * Assuming that our s390-ccw.img was linked for starting at address 0, 106 * we can simply add the destination address for the final location 107 */ 108 return srcaddr + dstaddr; 109 } 110 111 static void s390_ipl_realize(DeviceState *dev, Error **errp) 112 { 113 S390IPLState *ipl = S390_IPL(dev); 114 uint32_t *ipl_psw; 115 uint64_t pentry; 116 char *magic; 117 int kernel_size; 118 Error *err = NULL; 119 120 int bios_size; 121 char *bios_filename; 122 123 /* 124 * Always load the bios if it was enforced, 125 * even if an external kernel has been defined. 126 */ 127 if (!ipl->kernel || ipl->enforce_bios) { 128 uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; 129 130 if (bios_name == NULL) { 131 bios_name = ipl->firmware; 132 } 133 134 bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 135 if (bios_filename == NULL) { 136 error_setg(&err, "could not find stage1 bootloader"); 137 goto error; 138 } 139 140 bios_size = load_elf(bios_filename, NULL, 141 bios_translate_addr, &fwbase, 142 &ipl->bios_start_addr, NULL, NULL, 1, 143 EM_S390, 0, 0); 144 if (bios_size > 0) { 145 /* Adjust ELF start address to final location */ 146 ipl->bios_start_addr += fwbase; 147 } else { 148 /* Try to load non-ELF file */ 149 bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, 150 4096); 151 ipl->bios_start_addr = ZIPL_IMAGE_START; 152 } 153 g_free(bios_filename); 154 155 if (bios_size == -1) { 156 error_setg(&err, "could not load bootloader '%s'", bios_name); 157 goto error; 158 } 159 160 /* default boot target is the bios */ 161 ipl->start_addr = ipl->bios_start_addr; 162 } 163 164 if (ipl->kernel) { 165 kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL, 166 &pentry, NULL, 167 NULL, 1, EM_S390, 0, 0); 168 if (kernel_size < 0) { 169 kernel_size = load_image_targphys(ipl->kernel, 0, ram_size); 170 if (kernel_size < 0) { 171 error_setg(&err, "could not load kernel '%s'", ipl->kernel); 172 goto error; 173 } 174 /* if this is Linux use KERN_IMAGE_START */ 175 magic = rom_ptr(LINUX_MAGIC_ADDR, 6); 176 if (magic && !memcmp(magic, "S390EP", 6)) { 177 pentry = KERN_IMAGE_START; 178 } else { 179 /* if not Linux load the address of the (short) IPL PSW */ 180 ipl_psw = rom_ptr(4, 4); 181 if (ipl_psw) { 182 pentry = be32_to_cpu(*ipl_psw) & 0x7fffffffUL; 183 } else { 184 error_setg(&err, "Could not get IPL PSW"); 185 goto error; 186 } 187 } 188 } 189 /* 190 * Is it a Linux kernel (starting at 0x10000)? If yes, we fill in the 191 * kernel parameters here as well. Note: For old kernels (up to 3.2) 192 * we can not rely on the ELF entry point - it was 0x800 (the SALIPL 193 * loader) and it won't work. For this case we force it to 0x10000, too. 194 */ 195 if (pentry == KERN_IMAGE_START || pentry == 0x800) { 196 char *parm_area = rom_ptr(KERN_PARM_AREA, strlen(ipl->cmdline) + 1); 197 ipl->start_addr = KERN_IMAGE_START; 198 /* Overwrite parameters in the kernel image, which are "rom" */ 199 if (parm_area) { 200 strcpy(parm_area, ipl->cmdline); 201 } 202 } else { 203 ipl->start_addr = pentry; 204 } 205 206 if (ipl->initrd) { 207 ram_addr_t initrd_offset; 208 int initrd_size; 209 uint64_t *romptr; 210 211 initrd_offset = INITRD_START; 212 while (kernel_size + 0x100000 > initrd_offset) { 213 initrd_offset += 0x100000; 214 } 215 initrd_size = load_image_targphys(ipl->initrd, initrd_offset, 216 ram_size - initrd_offset); 217 if (initrd_size == -1) { 218 error_setg(&err, "could not load initrd '%s'", ipl->initrd); 219 goto error; 220 } 221 222 /* 223 * we have to overwrite values in the kernel image, 224 * which are "rom" 225 */ 226 romptr = rom_ptr(INITRD_PARM_START, 16); 227 if (romptr) { 228 stq_p(romptr, initrd_offset); 229 stq_p(romptr + 1, initrd_size); 230 } 231 } 232 } 233 /* 234 * Don't ever use the migrated values, they could come from a different 235 * BIOS and therefore don't work. But still migrate the values, so 236 * QEMUs relying on it don't break. 237 */ 238 ipl->compat_start_addr = ipl->start_addr; 239 ipl->compat_bios_start_addr = ipl->bios_start_addr; 240 qemu_register_reset(qdev_reset_all_fn, dev); 241 error: 242 error_propagate(errp, err); 243 } 244 245 static Property s390_ipl_properties[] = { 246 DEFINE_PROP_STRING("kernel", S390IPLState, kernel), 247 DEFINE_PROP_STRING("initrd", S390IPLState, initrd), 248 DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline), 249 DEFINE_PROP_STRING("firmware", S390IPLState, firmware), 250 DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw), 251 DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false), 252 DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration, 253 true), 254 DEFINE_PROP_END_OF_LIST(), 255 }; 256 257 static void s390_ipl_set_boot_menu(S390IPLState *ipl) 258 { 259 QemuOptsList *plist = qemu_find_opts("boot-opts"); 260 QemuOpts *opts = QTAILQ_FIRST(&plist->head); 261 const char *tmp; 262 unsigned long splash_time = 0; 263 264 if (!get_boot_device(0)) { 265 if (boot_menu) { 266 error_report("boot menu requires a bootindex to be specified for " 267 "the IPL device"); 268 } 269 return; 270 } 271 272 switch (ipl->iplb.pbt) { 273 case S390_IPL_TYPE_CCW: 274 /* In the absence of -boot menu, use zipl parameters */ 275 if (!qemu_opt_get(opts, "menu")) { 276 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL; 277 return; 278 } 279 break; 280 case S390_IPL_TYPE_QEMU_SCSI: 281 break; 282 default: 283 if (boot_menu) { 284 error_report("boot menu is not supported for this device type"); 285 } 286 return; 287 } 288 289 if (!boot_menu) { 290 return; 291 } 292 293 ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD; 294 295 tmp = qemu_opt_get(opts, "splash-time"); 296 297 if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) { 298 error_report("splash-time is invalid, forcing it to 0"); 299 ipl->qipl.boot_menu_timeout = 0; 300 return; 301 } 302 303 if (splash_time > 0xffffffff) { 304 error_report("splash-time is too large, forcing it to max value"); 305 ipl->qipl.boot_menu_timeout = 0xffffffff; 306 return; 307 } 308 309 ipl->qipl.boot_menu_timeout = cpu_to_be32(splash_time); 310 } 311 312 #define CCW_DEVTYPE_NONE 0x00 313 #define CCW_DEVTYPE_VIRTIO 0x01 314 #define CCW_DEVTYPE_VIRTIO_NET 0x02 315 #define CCW_DEVTYPE_SCSI 0x03 316 #define CCW_DEVTYPE_VFIO 0x04 317 318 static CcwDevice *s390_get_ccw_device(DeviceState *dev_st, int *devtype) 319 { 320 CcwDevice *ccw_dev = NULL; 321 int tmp_dt = CCW_DEVTYPE_NONE; 322 323 if (dev_st) { 324 VirtIONet *virtio_net_dev = (VirtIONet *) 325 object_dynamic_cast(OBJECT(dev_st), TYPE_VIRTIO_NET); 326 VirtioCcwDevice *virtio_ccw_dev = (VirtioCcwDevice *) 327 object_dynamic_cast(OBJECT(qdev_get_parent_bus(dev_st)->parent), 328 TYPE_VIRTIO_CCW_DEVICE); 329 VFIOCCWDevice *vfio_ccw_dev = (VFIOCCWDevice *) 330 object_dynamic_cast(OBJECT(dev_st), TYPE_VFIO_CCW); 331 332 if (virtio_ccw_dev) { 333 ccw_dev = CCW_DEVICE(virtio_ccw_dev); 334 if (virtio_net_dev) { 335 tmp_dt = CCW_DEVTYPE_VIRTIO_NET; 336 } else { 337 tmp_dt = CCW_DEVTYPE_VIRTIO; 338 } 339 } else if (vfio_ccw_dev) { 340 ccw_dev = CCW_DEVICE(vfio_ccw_dev); 341 tmp_dt = CCW_DEVTYPE_VFIO; 342 } else { 343 SCSIDevice *sd = (SCSIDevice *) 344 object_dynamic_cast(OBJECT(dev_st), 345 TYPE_SCSI_DEVICE); 346 if (sd) { 347 SCSIBus *bus = scsi_bus_from_device(sd); 348 VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus); 349 VirtIOSCSICcw *scsi_ccw = container_of(vdev, VirtIOSCSICcw, 350 vdev); 351 352 ccw_dev = (CcwDevice *)object_dynamic_cast(OBJECT(scsi_ccw), 353 TYPE_CCW_DEVICE); 354 tmp_dt = CCW_DEVTYPE_SCSI; 355 } 356 } 357 } 358 if (devtype) { 359 *devtype = tmp_dt; 360 } 361 return ccw_dev; 362 } 363 364 static bool s390_gen_initial_iplb(S390IPLState *ipl) 365 { 366 DeviceState *dev_st; 367 CcwDevice *ccw_dev = NULL; 368 SCSIDevice *sd; 369 int devtype; 370 371 dev_st = get_boot_device(0); 372 if (dev_st) { 373 ccw_dev = s390_get_ccw_device(dev_st, &devtype); 374 } 375 376 /* 377 * Currently allow IPL only from CCW devices. 378 */ 379 if (ccw_dev) { 380 switch (devtype) { 381 case CCW_DEVTYPE_SCSI: 382 sd = SCSI_DEVICE(dev_st); 383 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); 384 ipl->iplb.blk0_len = 385 cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN); 386 ipl->iplb.pbt = S390_IPL_TYPE_QEMU_SCSI; 387 ipl->iplb.scsi.lun = cpu_to_be32(sd->lun); 388 ipl->iplb.scsi.target = cpu_to_be16(sd->id); 389 ipl->iplb.scsi.channel = cpu_to_be16(sd->channel); 390 ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno); 391 ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3; 392 break; 393 case CCW_DEVTYPE_VFIO: 394 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 395 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 396 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 397 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 398 break; 399 case CCW_DEVTYPE_VIRTIO_NET: 400 ipl->netboot = true; 401 /* Fall through to CCW_DEVTYPE_VIRTIO case */ 402 case CCW_DEVTYPE_VIRTIO: 403 ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_CCW_LEN); 404 ipl->iplb.blk0_len = 405 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN); 406 ipl->iplb.pbt = S390_IPL_TYPE_CCW; 407 ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno); 408 ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3; 409 break; 410 } 411 412 if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) { 413 ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID; 414 } 415 416 return true; 417 } 418 419 return false; 420 } 421 422 int s390_ipl_set_loadparm(uint8_t *loadparm) 423 { 424 MachineState *machine = MACHINE(qdev_get_machine()); 425 char *lp = object_property_get_str(OBJECT(machine), "loadparm", NULL); 426 427 if (lp) { 428 int i; 429 430 /* lp is an uppercase string without leading/embedded spaces */ 431 for (i = 0; i < 8 && lp[i]; i++) { 432 loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]]; 433 } 434 435 if (i < 8) { 436 memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */ 437 } 438 439 g_free(lp); 440 return 0; 441 } 442 443 return -1; 444 } 445 446 static int load_netboot_image(Error **errp) 447 { 448 S390IPLState *ipl = get_ipl_device(); 449 char *netboot_filename; 450 MemoryRegion *sysmem = get_system_memory(); 451 MemoryRegion *mr = NULL; 452 void *ram_ptr = NULL; 453 int img_size = -1; 454 455 mr = memory_region_find(sysmem, 0, 1).mr; 456 if (!mr) { 457 error_setg(errp, "Failed to find memory region at address 0"); 458 return -1; 459 } 460 461 ram_ptr = memory_region_get_ram_ptr(mr); 462 if (!ram_ptr) { 463 error_setg(errp, "No RAM found"); 464 goto unref_mr; 465 } 466 467 netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw); 468 if (netboot_filename == NULL) { 469 error_setg(errp, "Could not find network bootloader '%s'", 470 ipl->netboot_fw); 471 goto unref_mr; 472 } 473 474 img_size = load_elf_ram(netboot_filename, NULL, NULL, NULL, 475 &ipl->start_addr, 476 NULL, NULL, 1, EM_S390, 0, 0, NULL, false); 477 478 if (img_size < 0) { 479 img_size = load_image_size(netboot_filename, ram_ptr, ram_size); 480 ipl->start_addr = KERN_IMAGE_START; 481 } 482 483 if (img_size < 0) { 484 error_setg(errp, "Failed to load network bootloader"); 485 } 486 487 g_free(netboot_filename); 488 489 unref_mr: 490 memory_region_unref(mr); 491 return img_size; 492 } 493 494 static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb, 495 int virtio_id) 496 { 497 uint8_t cssid; 498 uint8_t ssid; 499 uint16_t devno; 500 uint16_t schid; 501 SubchDev *sch = NULL; 502 503 if (iplb->pbt != S390_IPL_TYPE_CCW) { 504 return false; 505 } 506 507 devno = be16_to_cpu(iplb->ccw.devno); 508 ssid = iplb->ccw.ssid & 3; 509 510 for (schid = 0; schid < MAX_SCHID; schid++) { 511 for (cssid = 0; cssid < MAX_CSSID; cssid++) { 512 sch = css_find_subch(1, cssid, ssid, schid); 513 514 if (sch && sch->devno == devno) { 515 return sch->id.cu_model == virtio_id; 516 } 517 } 518 } 519 return false; 520 } 521 522 static bool is_virtio_net_device(IplParameterBlock *iplb) 523 { 524 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_NET); 525 } 526 527 static bool is_virtio_scsi_device(IplParameterBlock *iplb) 528 { 529 return is_virtio_ccw_device_of_type(iplb, VIRTIO_ID_SCSI); 530 } 531 532 void s390_ipl_update_diag308(IplParameterBlock *iplb) 533 { 534 S390IPLState *ipl = get_ipl_device(); 535 536 ipl->iplb = *iplb; 537 ipl->iplb_valid = true; 538 ipl->netboot = is_virtio_net_device(iplb); 539 } 540 541 IplParameterBlock *s390_ipl_get_iplb(void) 542 { 543 S390IPLState *ipl = get_ipl_device(); 544 545 if (!ipl->iplb_valid) { 546 return NULL; 547 } 548 return &ipl->iplb; 549 } 550 551 void s390_ipl_reset_request(CPUState *cs, enum s390_reset reset_type) 552 { 553 S390IPLState *ipl = get_ipl_device(); 554 555 if (reset_type == S390_RESET_EXTERNAL || reset_type == S390_RESET_REIPL) { 556 /* use CPU 0 for full resets */ 557 ipl->reset_cpu_index = 0; 558 } else { 559 ipl->reset_cpu_index = cs->cpu_index; 560 } 561 ipl->reset_type = reset_type; 562 563 if (reset_type == S390_RESET_REIPL && 564 ipl->iplb_valid && 565 !ipl->netboot && 566 ipl->iplb.pbt == S390_IPL_TYPE_CCW && 567 is_virtio_scsi_device(&ipl->iplb)) { 568 CcwDevice *ccw_dev = s390_get_ccw_device(get_boot_device(0), NULL); 569 570 if (ccw_dev && 571 cpu_to_be16(ccw_dev->sch->devno) == ipl->iplb.ccw.devno && 572 (ccw_dev->sch->ssid & 3) == ipl->iplb.ccw.ssid) { 573 /* 574 * this is the original boot device's SCSI 575 * so restore IPL parameter info from it 576 */ 577 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 578 } 579 } 580 if (reset_type == S390_RESET_MODIFIED_CLEAR || 581 reset_type == S390_RESET_LOAD_NORMAL) { 582 /* ignore -no-reboot, send no event */ 583 qemu_system_reset_request(SHUTDOWN_CAUSE_SUBSYSTEM_RESET); 584 } else { 585 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 586 } 587 /* as this is triggered by a CPU, make sure to exit the loop */ 588 if (tcg_enabled()) { 589 cpu_loop_exit(cs); 590 } 591 } 592 593 void s390_ipl_get_reset_request(CPUState **cs, enum s390_reset *reset_type) 594 { 595 S390IPLState *ipl = get_ipl_device(); 596 597 *cs = qemu_get_cpu(ipl->reset_cpu_index); 598 if (!*cs) { 599 /* use any CPU */ 600 *cs = first_cpu; 601 } 602 *reset_type = ipl->reset_type; 603 } 604 605 void s390_ipl_clear_reset_request(void) 606 { 607 S390IPLState *ipl = get_ipl_device(); 608 609 ipl->reset_type = S390_RESET_EXTERNAL; 610 /* use CPU 0 for full resets */ 611 ipl->reset_cpu_index = 0; 612 } 613 614 static void s390_ipl_prepare_qipl(S390CPU *cpu) 615 { 616 S390IPLState *ipl = get_ipl_device(); 617 uint8_t *addr; 618 uint64_t len = 4096; 619 620 addr = cpu_physical_memory_map(cpu->env.psa, &len, 1); 621 if (!addr || len < QIPL_ADDRESS + sizeof(QemuIplParameters)) { 622 error_report("Cannot set QEMU IPL parameters"); 623 return; 624 } 625 memcpy(addr + QIPL_ADDRESS, &ipl->qipl, sizeof(QemuIplParameters)); 626 cpu_physical_memory_unmap(addr, len, 1, len); 627 } 628 629 void s390_ipl_prepare_cpu(S390CPU *cpu) 630 { 631 S390IPLState *ipl = get_ipl_device(); 632 Error *err = NULL; 633 634 cpu->env.psw.addr = ipl->start_addr; 635 cpu->env.psw.mask = IPL_PSW_MASK; 636 637 if (!ipl->kernel || ipl->iplb_valid) { 638 cpu->env.psw.addr = ipl->bios_start_addr; 639 if (!ipl->iplb_valid) { 640 ipl->iplb_valid = s390_gen_initial_iplb(ipl); 641 } 642 } 643 if (ipl->netboot) { 644 if (load_netboot_image(&err) < 0) { 645 error_report_err(err); 646 exit(1); 647 } 648 ipl->qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr); 649 } 650 s390_ipl_set_boot_menu(ipl); 651 s390_ipl_prepare_qipl(cpu); 652 } 653 654 static void s390_ipl_reset(DeviceState *dev) 655 { 656 S390IPLState *ipl = S390_IPL(dev); 657 658 if (ipl->reset_type != S390_RESET_REIPL) { 659 ipl->iplb_valid = false; 660 memset(&ipl->iplb, 0, sizeof(IplParameterBlock)); 661 } 662 } 663 664 static void s390_ipl_class_init(ObjectClass *klass, void *data) 665 { 666 DeviceClass *dc = DEVICE_CLASS(klass); 667 668 dc->realize = s390_ipl_realize; 669 dc->props = s390_ipl_properties; 670 dc->reset = s390_ipl_reset; 671 dc->vmsd = &vmstate_ipl; 672 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 673 /* Reason: Loads the ROMs and thus can only be used one time - internally */ 674 dc->user_creatable = false; 675 } 676 677 static const TypeInfo s390_ipl_info = { 678 .class_init = s390_ipl_class_init, 679 .parent = TYPE_DEVICE, 680 .name = TYPE_S390_IPL, 681 .instance_size = sizeof(S390IPLState), 682 }; 683 684 static void s390_ipl_register_types(void) 685 { 686 type_register_static(&s390_ipl_info); 687 } 688 689 type_init(s390_ipl_register_types) 690