1 /* 2 * QEMU PPC PREP hardware System Emulator 3 * 4 * Copyright (c) 2003-2007 Jocelyn Mayer 5 * Copyright (c) 2017 Hervé Poussineau 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "qemu/osdep.h" 27 #include "cpu.h" 28 #include "hw/rtc/m48t59.h" 29 #include "hw/char/serial.h" 30 #include "hw/block/fdc.h" 31 #include "net/net.h" 32 #include "sysemu/sysemu.h" 33 #include "hw/isa/isa.h" 34 #include "hw/pci/pci.h" 35 #include "hw/pci/pci_host.h" 36 #include "hw/ppc/ppc.h" 37 #include "hw/boards.h" 38 #include "qemu/error-report.h" 39 #include "qemu/log.h" 40 #include "hw/ide.h" 41 #include "hw/irq.h" 42 #include "hw/loader.h" 43 #include "hw/rtc/mc146818rtc.h" 44 #include "hw/isa/pc87312.h" 45 #include "hw/net/ne2000-isa.h" 46 #include "sysemu/arch_init.h" 47 #include "sysemu/kvm.h" 48 #include "sysemu/qtest.h" 49 #include "sysemu/reset.h" 50 #include "exec/address-spaces.h" 51 #include "trace.h" 52 #include "elf.h" 53 #include "qemu/units.h" 54 #include "kvm_ppc.h" 55 56 /* SMP is not enabled, for now */ 57 #define MAX_CPUS 1 58 59 #define MAX_IDE_BUS 2 60 61 #define CFG_ADDR 0xf0000510 62 63 #define BIOS_SIZE (1 * MiB) 64 #define BIOS_FILENAME "ppc_rom.bin" 65 #define KERNEL_LOAD_ADDR 0x01000000 66 #define INITRD_LOAD_ADDR 0x01800000 67 68 /* Constants for devices init */ 69 static const int ide_iobase[2] = { 0x1f0, 0x170 }; 70 static const int ide_iobase2[2] = { 0x3f6, 0x376 }; 71 static const int ide_irq[2] = { 13, 13 }; 72 73 #define NE2000_NB_MAX 6 74 75 static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 }; 76 static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; 77 78 /* ISA IO ports bridge */ 79 #define PPC_IO_BASE 0x80000000 80 81 /* Fake super-io ports for PREP platform (Intel 82378ZB) */ 82 typedef struct sysctrl_t { 83 qemu_irq reset_irq; 84 Nvram *nvram; 85 uint8_t state; 86 uint8_t syscontrol; 87 int contiguous_map; 88 qemu_irq contiguous_map_irq; 89 int endian; 90 } sysctrl_t; 91 92 enum { 93 STATE_HARDFILE = 0x01, 94 }; 95 96 static sysctrl_t *sysctrl; 97 98 static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val) 99 { 100 sysctrl_t *sysctrl = opaque; 101 102 trace_prep_io_800_writeb(addr - PPC_IO_BASE, val); 103 switch (addr) { 104 case 0x0092: 105 /* Special port 92 */ 106 /* Check soft reset asked */ 107 if (val & 0x01) { 108 qemu_irq_raise(sysctrl->reset_irq); 109 } else { 110 qemu_irq_lower(sysctrl->reset_irq); 111 } 112 /* Check LE mode */ 113 if (val & 0x02) { 114 sysctrl->endian = 1; 115 } else { 116 sysctrl->endian = 0; 117 } 118 break; 119 case 0x0800: 120 /* Motorola CPU configuration register : read-only */ 121 break; 122 case 0x0802: 123 /* Motorola base module feature register : read-only */ 124 break; 125 case 0x0803: 126 /* Motorola base module status register : read-only */ 127 break; 128 case 0x0808: 129 /* Hardfile light register */ 130 if (val & 1) 131 sysctrl->state |= STATE_HARDFILE; 132 else 133 sysctrl->state &= ~STATE_HARDFILE; 134 break; 135 case 0x0810: 136 /* Password protect 1 register */ 137 if (sysctrl->nvram != NULL) { 138 NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram); 139 (k->toggle_lock)(sysctrl->nvram, 1); 140 } 141 break; 142 case 0x0812: 143 /* Password protect 2 register */ 144 if (sysctrl->nvram != NULL) { 145 NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram); 146 (k->toggle_lock)(sysctrl->nvram, 2); 147 } 148 break; 149 case 0x0814: 150 /* L2 invalidate register */ 151 // tlb_flush(first_cpu, 1); 152 break; 153 case 0x081C: 154 /* system control register */ 155 sysctrl->syscontrol = val & 0x0F; 156 break; 157 case 0x0850: 158 /* I/O map type register */ 159 sysctrl->contiguous_map = val & 0x01; 160 qemu_set_irq(sysctrl->contiguous_map_irq, sysctrl->contiguous_map); 161 break; 162 default: 163 printf("ERROR: unaffected IO port write: %04" PRIx32 164 " => %02" PRIx32"\n", addr, val); 165 break; 166 } 167 } 168 169 static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr) 170 { 171 sysctrl_t *sysctrl = opaque; 172 uint32_t retval = 0xFF; 173 174 switch (addr) { 175 case 0x0092: 176 /* Special port 92 */ 177 retval = sysctrl->endian << 1; 178 break; 179 case 0x0800: 180 /* Motorola CPU configuration register */ 181 retval = 0xEF; /* MPC750 */ 182 break; 183 case 0x0802: 184 /* Motorola Base module feature register */ 185 retval = 0xAD; /* No ESCC, PMC slot neither ethernet */ 186 break; 187 case 0x0803: 188 /* Motorola base module status register */ 189 retval = 0xE0; /* Standard MPC750 */ 190 break; 191 case 0x080C: 192 /* Equipment present register: 193 * no L2 cache 194 * no upgrade processor 195 * no cards in PCI slots 196 * SCSI fuse is bad 197 */ 198 retval = 0x3C; 199 break; 200 case 0x0810: 201 /* Motorola base module extended feature register */ 202 retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */ 203 break; 204 case 0x0814: 205 /* L2 invalidate: don't care */ 206 break; 207 case 0x0818: 208 /* Keylock */ 209 retval = 0x00; 210 break; 211 case 0x081C: 212 /* system control register 213 * 7 - 6 / 1 - 0: L2 cache enable 214 */ 215 retval = sysctrl->syscontrol; 216 break; 217 case 0x0823: 218 /* */ 219 retval = 0x03; /* no L2 cache */ 220 break; 221 case 0x0850: 222 /* I/O map type register */ 223 retval = sysctrl->contiguous_map; 224 break; 225 default: 226 printf("ERROR: unaffected IO port: %04" PRIx32 " read\n", addr); 227 break; 228 } 229 trace_prep_io_800_readb(addr - PPC_IO_BASE, retval); 230 231 return retval; 232 } 233 234 235 #define NVRAM_SIZE 0x2000 236 237 static void fw_cfg_boot_set(void *opaque, const char *boot_device, 238 Error **errp) 239 { 240 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); 241 } 242 243 static void ppc_prep_reset(void *opaque) 244 { 245 PowerPCCPU *cpu = opaque; 246 247 cpu_reset(CPU(cpu)); 248 } 249 250 static const MemoryRegionPortio prep_portio_list[] = { 251 /* System control ports */ 252 { 0x0092, 1, 1, .read = PREP_io_800_readb, .write = PREP_io_800_writeb, }, 253 { 0x0800, 0x52, 1, 254 .read = PREP_io_800_readb, .write = PREP_io_800_writeb, }, 255 /* Special port to get debug messages from Open-Firmware */ 256 { 0x0F00, 4, 1, .write = PPC_debug_write, }, 257 PORTIO_END_OF_LIST(), 258 }; 259 260 static PortioList prep_port_list; 261 262 /*****************************************************************************/ 263 /* NVRAM helpers */ 264 static inline uint32_t nvram_read(Nvram *nvram, uint32_t addr) 265 { 266 NvramClass *k = NVRAM_GET_CLASS(nvram); 267 return (k->read)(nvram, addr); 268 } 269 270 static inline void nvram_write(Nvram *nvram, uint32_t addr, uint32_t val) 271 { 272 NvramClass *k = NVRAM_GET_CLASS(nvram); 273 (k->write)(nvram, addr, val); 274 } 275 276 static void NVRAM_set_byte(Nvram *nvram, uint32_t addr, uint8_t value) 277 { 278 nvram_write(nvram, addr, value); 279 } 280 281 static uint8_t NVRAM_get_byte(Nvram *nvram, uint32_t addr) 282 { 283 return nvram_read(nvram, addr); 284 } 285 286 static void NVRAM_set_word(Nvram *nvram, uint32_t addr, uint16_t value) 287 { 288 nvram_write(nvram, addr, value >> 8); 289 nvram_write(nvram, addr + 1, value & 0xFF); 290 } 291 292 static uint16_t NVRAM_get_word(Nvram *nvram, uint32_t addr) 293 { 294 uint16_t tmp; 295 296 tmp = nvram_read(nvram, addr) << 8; 297 tmp |= nvram_read(nvram, addr + 1); 298 299 return tmp; 300 } 301 302 static void NVRAM_set_lword(Nvram *nvram, uint32_t addr, uint32_t value) 303 { 304 nvram_write(nvram, addr, value >> 24); 305 nvram_write(nvram, addr + 1, (value >> 16) & 0xFF); 306 nvram_write(nvram, addr + 2, (value >> 8) & 0xFF); 307 nvram_write(nvram, addr + 3, value & 0xFF); 308 } 309 310 static void NVRAM_set_string(Nvram *nvram, uint32_t addr, const char *str, 311 uint32_t max) 312 { 313 int i; 314 315 for (i = 0; i < max && str[i] != '\0'; i++) { 316 nvram_write(nvram, addr + i, str[i]); 317 } 318 nvram_write(nvram, addr + i, str[i]); 319 nvram_write(nvram, addr + max - 1, '\0'); 320 } 321 322 static uint16_t NVRAM_crc_update (uint16_t prev, uint16_t value) 323 { 324 uint16_t tmp; 325 uint16_t pd, pd1, pd2; 326 327 tmp = prev >> 8; 328 pd = prev ^ value; 329 pd1 = pd & 0x000F; 330 pd2 = ((pd >> 4) & 0x000F) ^ pd1; 331 tmp ^= (pd1 << 3) | (pd1 << 8); 332 tmp ^= pd2 | (pd2 << 7) | (pd2 << 12); 333 334 return tmp; 335 } 336 337 static uint16_t NVRAM_compute_crc (Nvram *nvram, uint32_t start, uint32_t count) 338 { 339 uint32_t i; 340 uint16_t crc = 0xFFFF; 341 int odd; 342 343 odd = count & 1; 344 count &= ~1; 345 for (i = 0; i != count; i++) { 346 crc = NVRAM_crc_update(crc, NVRAM_get_word(nvram, start + i)); 347 } 348 if (odd) { 349 crc = NVRAM_crc_update(crc, NVRAM_get_byte(nvram, start + i) << 8); 350 } 351 352 return crc; 353 } 354 355 #define CMDLINE_ADDR 0x017ff000 356 357 static int PPC_NVRAM_set_params (Nvram *nvram, uint16_t NVRAM_size, 358 const char *arch, 359 uint32_t RAM_size, int boot_device, 360 uint32_t kernel_image, uint32_t kernel_size, 361 const char *cmdline, 362 uint32_t initrd_image, uint32_t initrd_size, 363 uint32_t NVRAM_image, 364 int width, int height, int depth) 365 { 366 uint16_t crc; 367 368 /* Set parameters for Open Hack'Ware BIOS */ 369 NVRAM_set_string(nvram, 0x00, "QEMU_BIOS", 16); 370 NVRAM_set_lword(nvram, 0x10, 0x00000002); /* structure v2 */ 371 NVRAM_set_word(nvram, 0x14, NVRAM_size); 372 NVRAM_set_string(nvram, 0x20, arch, 16); 373 NVRAM_set_lword(nvram, 0x30, RAM_size); 374 NVRAM_set_byte(nvram, 0x34, boot_device); 375 NVRAM_set_lword(nvram, 0x38, kernel_image); 376 NVRAM_set_lword(nvram, 0x3C, kernel_size); 377 if (cmdline) { 378 /* XXX: put the cmdline in NVRAM too ? */ 379 pstrcpy_targphys("cmdline", CMDLINE_ADDR, RAM_size - CMDLINE_ADDR, 380 cmdline); 381 NVRAM_set_lword(nvram, 0x40, CMDLINE_ADDR); 382 NVRAM_set_lword(nvram, 0x44, strlen(cmdline)); 383 } else { 384 NVRAM_set_lword(nvram, 0x40, 0); 385 NVRAM_set_lword(nvram, 0x44, 0); 386 } 387 NVRAM_set_lword(nvram, 0x48, initrd_image); 388 NVRAM_set_lword(nvram, 0x4C, initrd_size); 389 NVRAM_set_lword(nvram, 0x50, NVRAM_image); 390 391 NVRAM_set_word(nvram, 0x54, width); 392 NVRAM_set_word(nvram, 0x56, height); 393 NVRAM_set_word(nvram, 0x58, depth); 394 crc = NVRAM_compute_crc(nvram, 0x00, 0xF8); 395 NVRAM_set_word(nvram, 0xFC, crc); 396 397 return 0; 398 } 399 400 /* PowerPC PREP hardware initialisation */ 401 static void ppc_prep_init(MachineState *machine) 402 { 403 ram_addr_t ram_size = machine->ram_size; 404 const char *kernel_filename = machine->kernel_filename; 405 const char *kernel_cmdline = machine->kernel_cmdline; 406 const char *initrd_filename = machine->initrd_filename; 407 const char *boot_device = machine->boot_order; 408 MemoryRegion *sysmem = get_system_memory(); 409 PowerPCCPU *cpu = NULL; 410 CPUPPCState *env = NULL; 411 Nvram *m48t59; 412 #if 0 413 MemoryRegion *xcsr = g_new(MemoryRegion, 1); 414 #endif 415 int linux_boot, i, nb_nics1; 416 MemoryRegion *ram = g_new(MemoryRegion, 1); 417 uint32_t kernel_base, initrd_base; 418 long kernel_size, initrd_size; 419 DeviceState *dev; 420 PCIHostState *pcihost; 421 PCIBus *pci_bus; 422 PCIDevice *pci; 423 ISABus *isa_bus; 424 ISADevice *isa; 425 int ppc_boot_device; 426 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; 427 428 sysctrl = g_malloc0(sizeof(sysctrl_t)); 429 430 linux_boot = (kernel_filename != NULL); 431 432 /* init CPUs */ 433 for (i = 0; i < machine->smp.cpus; i++) { 434 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 435 env = &cpu->env; 436 437 if (env->flags & POWERPC_FLAG_RTC_CLK) { 438 /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */ 439 cpu_ppc_tb_init(env, 7812500UL); 440 } else { 441 /* Set time-base frequency to 100 Mhz */ 442 cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); 443 } 444 qemu_register_reset(ppc_prep_reset, cpu); 445 } 446 447 /* allocate RAM */ 448 memory_region_allocate_system_memory(ram, NULL, "ppc_prep.ram", ram_size); 449 memory_region_add_subregion(sysmem, 0, ram); 450 451 if (linux_boot) { 452 kernel_base = KERNEL_LOAD_ADDR; 453 /* now we can load the kernel */ 454 kernel_size = load_image_targphys(kernel_filename, kernel_base, 455 ram_size - kernel_base); 456 if (kernel_size < 0) { 457 error_report("could not load kernel '%s'", kernel_filename); 458 exit(1); 459 } 460 /* load initrd */ 461 if (initrd_filename) { 462 initrd_base = INITRD_LOAD_ADDR; 463 initrd_size = load_image_targphys(initrd_filename, initrd_base, 464 ram_size - initrd_base); 465 if (initrd_size < 0) { 466 error_report("could not load initial ram disk '%s'", 467 initrd_filename); 468 exit(1); 469 } 470 } else { 471 initrd_base = 0; 472 initrd_size = 0; 473 } 474 ppc_boot_device = 'm'; 475 } else { 476 kernel_base = 0; 477 kernel_size = 0; 478 initrd_base = 0; 479 initrd_size = 0; 480 ppc_boot_device = '\0'; 481 /* For now, OHW cannot boot from the network. */ 482 for (i = 0; boot_device[i] != '\0'; i++) { 483 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { 484 ppc_boot_device = boot_device[i]; 485 break; 486 } 487 } 488 if (ppc_boot_device == '\0') { 489 error_report("No valid boot device for Mac99 machine"); 490 exit(1); 491 } 492 } 493 494 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 495 error_report("Only 6xx bus is supported on PREP machine"); 496 exit(1); 497 } 498 499 dev = qdev_create(NULL, "raven-pcihost"); 500 if (bios_name == NULL) { 501 bios_name = BIOS_FILENAME; 502 } 503 qdev_prop_set_string(dev, "bios-name", bios_name); 504 qdev_prop_set_uint32(dev, "elf-machine", PPC_ELF_MACHINE); 505 qdev_prop_set_bit(dev, "is-legacy-prep", true); 506 pcihost = PCI_HOST_BRIDGE(dev); 507 object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL); 508 qdev_init_nofail(dev); 509 pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0"); 510 if (pci_bus == NULL) { 511 error_report("Couldn't create PCI host controller"); 512 exit(1); 513 } 514 sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0); 515 516 /* PCI -> ISA bridge */ 517 pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378"); 518 cpu = POWERPC_CPU(first_cpu); 519 qdev_connect_gpio_out(&pci->qdev, 0, 520 cpu->env.irq_inputs[PPC6xx_INPUT_INT]); 521 sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9)); 522 sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11)); 523 sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9)); 524 sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11)); 525 isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci), "isa.0")); 526 527 /* Super I/O (parallel + serial ports) */ 528 isa = isa_create(isa_bus, TYPE_PC87312_SUPERIO); 529 dev = DEVICE(isa); 530 qdev_prop_set_uint8(dev, "config", 13); /* fdc, ser0, ser1, par0 */ 531 qdev_init_nofail(dev); 532 533 /* init basic PC hardware */ 534 pci_vga_init(pci_bus); 535 536 nb_nics1 = nb_nics; 537 if (nb_nics1 > NE2000_NB_MAX) 538 nb_nics1 = NE2000_NB_MAX; 539 for(i = 0; i < nb_nics1; i++) { 540 if (nd_table[i].model == NULL) { 541 nd_table[i].model = g_strdup("ne2k_isa"); 542 } 543 if (strcmp(nd_table[i].model, "ne2k_isa") == 0) { 544 isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i], 545 &nd_table[i]); 546 } else { 547 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); 548 } 549 } 550 551 ide_drive_get(hd, ARRAY_SIZE(hd)); 552 for(i = 0; i < MAX_IDE_BUS; i++) { 553 isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i], 554 hd[2 * i], 555 hd[2 * i + 1]); 556 } 557 558 cpu = POWERPC_CPU(first_cpu); 559 sysctrl->reset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET]; 560 561 portio_list_init(&prep_port_list, NULL, prep_portio_list, sysctrl, "prep"); 562 portio_list_add(&prep_port_list, isa_address_space_io(isa), 0x0); 563 564 /* 565 * PowerPC control and status register group: unimplemented, 566 * would be at address 0xFEFF0000. 567 */ 568 569 if (machine_usb(machine)) { 570 pci_create_simple(pci_bus, -1, "pci-ohci"); 571 } 572 573 m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 2000, 59); 574 if (m48t59 == NULL) 575 return; 576 sysctrl->nvram = m48t59; 577 578 /* Initialise NVRAM */ 579 PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, "PREP", ram_size, 580 ppc_boot_device, 581 kernel_base, kernel_size, 582 kernel_cmdline, 583 initrd_base, initrd_size, 584 /* XXX: need an option to load a NVRAM image */ 585 0, 586 graphic_width, graphic_height, graphic_depth); 587 } 588 589 static void prep_machine_init(MachineClass *mc) 590 { 591 mc->deprecation_reason = "use 40p machine type instead"; 592 mc->desc = "PowerPC PREP platform"; 593 mc->init = ppc_prep_init; 594 mc->block_default_type = IF_IDE; 595 mc->max_cpus = MAX_CPUS; 596 mc->default_boot_order = "cad"; 597 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("602"); 598 mc->default_display = "std"; 599 } 600 601 static int prep_set_cmos_checksum(DeviceState *dev, void *opaque) 602 { 603 uint16_t checksum = *(uint16_t *)opaque; 604 ISADevice *rtc; 605 606 if (object_dynamic_cast(OBJECT(dev), TYPE_MC146818_RTC)) { 607 rtc = ISA_DEVICE(dev); 608 rtc_set_memory(rtc, 0x2e, checksum & 0xff); 609 rtc_set_memory(rtc, 0x3e, checksum & 0xff); 610 rtc_set_memory(rtc, 0x2f, checksum >> 8); 611 rtc_set_memory(rtc, 0x3f, checksum >> 8); 612 613 object_property_add_alias(qdev_get_machine(), "rtc-time", OBJECT(rtc), 614 "date", NULL); 615 } 616 return 0; 617 } 618 619 static void ibm_40p_init(MachineState *machine) 620 { 621 CPUPPCState *env = NULL; 622 uint16_t cmos_checksum; 623 PowerPCCPU *cpu; 624 DeviceState *dev, *i82378_dev; 625 SysBusDevice *pcihost, *s; 626 Nvram *m48t59 = NULL; 627 PCIBus *pci_bus; 628 ISABus *isa_bus; 629 void *fw_cfg; 630 int i; 631 uint32_t kernel_base = 0, initrd_base = 0; 632 long kernel_size = 0, initrd_size = 0; 633 char boot_device; 634 635 /* init CPU */ 636 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 637 env = &cpu->env; 638 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { 639 error_report("only 6xx bus is supported on this machine"); 640 exit(1); 641 } 642 643 if (env->flags & POWERPC_FLAG_RTC_CLK) { 644 /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */ 645 cpu_ppc_tb_init(env, 7812500UL); 646 } else { 647 /* Set time-base frequency to 100 Mhz */ 648 cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); 649 } 650 qemu_register_reset(ppc_prep_reset, cpu); 651 652 /* PCI host */ 653 dev = qdev_create(NULL, "raven-pcihost"); 654 if (!bios_name) { 655 bios_name = "openbios-ppc"; 656 } 657 qdev_prop_set_string(dev, "bios-name", bios_name); 658 qdev_prop_set_uint32(dev, "elf-machine", PPC_ELF_MACHINE); 659 pcihost = SYS_BUS_DEVICE(dev); 660 object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL); 661 qdev_init_nofail(dev); 662 pci_bus = PCI_BUS(qdev_get_child_bus(dev, "pci.0")); 663 if (!pci_bus) { 664 error_report("could not create PCI host controller"); 665 exit(1); 666 } 667 668 /* PCI -> ISA bridge */ 669 i82378_dev = DEVICE(pci_create_simple(pci_bus, PCI_DEVFN(11, 0), "i82378")); 670 qdev_connect_gpio_out(i82378_dev, 0, 671 cpu->env.irq_inputs[PPC6xx_INPUT_INT]); 672 sysbus_connect_irq(pcihost, 0, qdev_get_gpio_in(i82378_dev, 15)); 673 isa_bus = ISA_BUS(qdev_get_child_bus(i82378_dev, "isa.0")); 674 675 /* Memory controller */ 676 dev = DEVICE(isa_create(isa_bus, "rs6000-mc")); 677 qdev_prop_set_uint32(dev, "ram-size", machine->ram_size); 678 qdev_init_nofail(dev); 679 680 /* RTC */ 681 dev = DEVICE(isa_create(isa_bus, TYPE_MC146818_RTC)); 682 qdev_prop_set_int32(dev, "base_year", 1900); 683 qdev_init_nofail(dev); 684 685 /* initialize CMOS checksums */ 686 cmos_checksum = 0x6aa9; 687 qbus_walk_children(BUS(isa_bus), prep_set_cmos_checksum, NULL, NULL, NULL, 688 &cmos_checksum); 689 690 /* add some more devices */ 691 if (defaults_enabled()) { 692 m48t59 = NVRAM(isa_create_simple(isa_bus, "isa-m48t59")); 693 694 dev = DEVICE(isa_create(isa_bus, "cs4231a")); 695 qdev_prop_set_uint32(dev, "iobase", 0x830); 696 qdev_prop_set_uint32(dev, "irq", 10); 697 qdev_init_nofail(dev); 698 699 dev = DEVICE(isa_create(isa_bus, "pc87312")); 700 qdev_prop_set_uint32(dev, "config", 12); 701 qdev_init_nofail(dev); 702 703 dev = DEVICE(isa_create(isa_bus, "prep-systemio")); 704 qdev_prop_set_uint32(dev, "ibm-planar-id", 0xfc); 705 qdev_prop_set_uint32(dev, "equipment", 0xc0); 706 qdev_init_nofail(dev); 707 708 dev = DEVICE(pci_create_simple(pci_bus, PCI_DEVFN(1, 0), 709 "lsi53c810")); 710 lsi53c8xx_handle_legacy_cmdline(dev); 711 qdev_connect_gpio_out(dev, 0, qdev_get_gpio_in(i82378_dev, 13)); 712 713 /* XXX: s3-trio at PCI_DEVFN(2, 0) */ 714 pci_vga_init(pci_bus); 715 716 for (i = 0; i < nb_nics; i++) { 717 pci_nic_init_nofail(&nd_table[i], pci_bus, "pcnet", 718 i == 0 ? "3" : NULL); 719 } 720 } 721 722 /* Prepare firmware configuration for OpenBIOS */ 723 dev = qdev_create(NULL, TYPE_FW_CFG_MEM); 724 fw_cfg = FW_CFG(dev); 725 qdev_prop_set_uint32(dev, "data_width", 1); 726 qdev_prop_set_bit(dev, "dma_enabled", false); 727 object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG, 728 OBJECT(fw_cfg), NULL); 729 qdev_init_nofail(dev); 730 s = SYS_BUS_DEVICE(dev); 731 sysbus_mmio_map(s, 0, CFG_ADDR); 732 sysbus_mmio_map(s, 1, CFG_ADDR + 2); 733 734 if (machine->kernel_filename) { 735 /* load kernel */ 736 kernel_base = KERNEL_LOAD_ADDR; 737 kernel_size = load_image_targphys(machine->kernel_filename, 738 kernel_base, 739 machine->ram_size - kernel_base); 740 if (kernel_size < 0) { 741 error_report("could not load kernel '%s'", 742 machine->kernel_filename); 743 exit(1); 744 } 745 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); 746 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 747 /* load initrd */ 748 if (machine->initrd_filename) { 749 initrd_base = INITRD_LOAD_ADDR; 750 initrd_size = load_image_targphys(machine->initrd_filename, 751 initrd_base, 752 machine->ram_size - initrd_base); 753 if (initrd_size < 0) { 754 error_report("could not load initial ram disk '%s'", 755 machine->initrd_filename); 756 exit(1); 757 } 758 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); 759 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 760 } 761 if (machine->kernel_cmdline && *machine->kernel_cmdline) { 762 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR); 763 pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE, 764 machine->kernel_cmdline); 765 fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, 766 machine->kernel_cmdline); 767 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 768 strlen(machine->kernel_cmdline) + 1); 769 } 770 boot_device = 'm'; 771 } else { 772 boot_device = machine->boot_order[0]; 773 } 774 775 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus); 776 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size); 777 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_PREP); 778 779 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); 780 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); 781 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); 782 783 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); 784 if (kvm_enabled()) { 785 uint8_t *hypercall; 786 787 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq()); 788 hypercall = g_malloc(16); 789 kvmppc_get_hypercall(env, hypercall, 16); 790 fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); 791 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); 792 } else { 793 fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, NANOSECONDS_PER_SECOND); 794 } 795 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_device); 796 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); 797 798 /* Prepare firmware configuration for Open Hack'Ware */ 799 if (m48t59) { 800 PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, "PREP", ram_size, 801 boot_device, 802 kernel_base, kernel_size, 803 machine->kernel_cmdline, 804 initrd_base, initrd_size, 805 /* XXX: need an option to load a NVRAM image */ 806 0, 807 graphic_width, graphic_height, graphic_depth); 808 } 809 } 810 811 static void ibm_40p_machine_init(MachineClass *mc) 812 { 813 mc->desc = "IBM RS/6000 7020 (40p)", 814 mc->init = ibm_40p_init; 815 mc->max_cpus = 1; 816 mc->default_ram_size = 128 * MiB; 817 mc->block_default_type = IF_SCSI; 818 mc->default_boot_order = "c"; 819 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("604"); 820 mc->default_display = "std"; 821 } 822 823 DEFINE_MACHINE("40p", ibm_40p_machine_init) 824 DEFINE_MACHINE("prep", prep_machine_init) 825