hw/ppc/prep.c

   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 #include "qemu/osdep.h"
  26 #include "cpu.h"
  27 #include "hw/hw.h"
  28 #include "hw/timer/m48t59.h"
  29 #include "hw/i386/pc.h"
  30 #include "hw/char/serial.h"
  31 #include "hw/block/fdc.h"
  32 #include "net/net.h"
  33 #include "sysemu/sysemu.h"
  34 #include "hw/isa/isa.h"
  35 #include "hw/pci/pci.h"
  36 #include "hw/pci/pci_host.h"
  37 #include "hw/ppc/ppc.h"
  38 #include "hw/boards.h"
  39 #include "qemu/error-report.h"
  40 #include "qemu/log.h"
  41 #include "hw/ide.h"
  42 #include "hw/loader.h"
  43 #include "hw/timer/mc146818rtc.h"
  44 #include "hw/isa/pc87312.h"
  45 #include "sysemu/block-backend.h"
  46 #include "sysemu/arch_init.h"
  47 #include "sysemu/kvm.h"
  48 #include "sysemu/qtest.h"
  49 #include "exec/address-spaces.h"
  50 #include "trace.h"
  51 #include "elf.h"
  52 #include "qemu/cutils.h"
  53 #include "kvm_ppc.h"
  54
  55 /* SMP is not enabled, for now */
  56 #define MAX_CPUS 1
  57
  58 #define MAX_IDE_BUS 2
  59
  60 #define CFG_ADDR 0xf0000510
  61
  62 #define BIOS_SIZE (1024 * 1024)
  63 #define BIOS_FILENAME "ppc_rom.bin"
  64 #define KERNEL_LOAD_ADDR 0x01000000
  65 #define INITRD_LOAD_ADDR 0x01800000
  66
  67 /* Constants for devices init */
  68 static const int ide_iobase[2] = { 0x1f0, 0x170 };
  69 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
  70 static const int ide_irq[2] = { 13, 13 };
  71
  72 #define NE2000_NB_MAX 6
  73
  74 static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
  75 static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
  76
  77 /* ISA IO ports bridge */
  78 #define PPC_IO_BASE 0x80000000
  79
  80 /* PowerPC control and status registers */
  81 #if 0 // Not used
  82 static struct {
  83     /* IDs */
  84     uint32_t veni_devi;
  85     uint32_t revi;
  86     /* Control and status */
  87     uint32_t gcsr;
  88     uint32_t xcfr;
  89     uint32_t ct32;
  90     uint32_t mcsr;
  91     /* General purpose registers */
  92     uint32_t gprg[6];
  93     /* Exceptions */
  94     uint32_t feen;
  95     uint32_t fest;
  96     uint32_t fema;
  97     uint32_t fecl;
  98     uint32_t eeen;
  99     uint32_t eest;
 100     uint32_t eecl;
 101     uint32_t eeint;
 102     uint32_t eemck0;
 103     uint32_t eemck1;
 104     /* Error diagnostic */
 105 } XCSR;
 106
 107 static void PPC_XCSR_writeb (void *opaque,
 108                              hwaddr addr, uint32_t value)
 109 {
 110     printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
 111            value);
 112 }
 113
 114 static void PPC_XCSR_writew (void *opaque,
 115                              hwaddr addr, uint32_t value)
 116 {
 117     printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
 118            value);
 119 }
 120
 121 static void PPC_XCSR_writel (void *opaque,
 122                              hwaddr addr, uint32_t value)
 123 {
 124     printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
 125            value);
 126 }
 127
 128 static uint32_t PPC_XCSR_readb (void *opaque, hwaddr addr)
 129 {
 130     uint32_t retval = 0;
 131
 132     printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
 133            retval);
 134
 135     return retval;
 136 }
 137
 138 static uint32_t PPC_XCSR_readw (void *opaque, hwaddr addr)
 139 {
 140     uint32_t retval = 0;
 141
 142     printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
 143            retval);
 144
 145     return retval;
 146 }
 147
 148 static uint32_t PPC_XCSR_readl (void *opaque, hwaddr addr)
 149 {
 150     uint32_t retval = 0;
 151
 152     printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
 153            retval);
 154
 155     return retval;
 156 }
 157
 158 static const MemoryRegionOps PPC_XCSR_ops = {
 159     .old_mmio = {
 160         .read = { PPC_XCSR_readb, PPC_XCSR_readw, PPC_XCSR_readl, },
 161         .write = { PPC_XCSR_writeb, PPC_XCSR_writew, PPC_XCSR_writel, },
 162     },
 163     .endianness = DEVICE_LITTLE_ENDIAN,
 164 };
 165
 166 #endif
 167
 168 /* Fake super-io ports for PREP platform (Intel 82378ZB) */
 169 typedef struct sysctrl_t {
 170     qemu_irq reset_irq;
 171     Nvram *nvram;
 172     uint8_t state;
 173     uint8_t syscontrol;
 174     int contiguous_map;
 175     qemu_irq contiguous_map_irq;
 176     int endian;
 177 } sysctrl_t;
 178
 179 enum {
 180     STATE_HARDFILE = 0x01,
 181 };
 182
 183 static sysctrl_t *sysctrl;
 184
 185 static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val)
 186 {
 187     sysctrl_t *sysctrl = opaque;
 188
 189     trace_prep_io_800_writeb(addr - PPC_IO_BASE, val);
 190     switch (addr) {
 191     case 0x0092:
 192         /* Special port 92 */
 193         /* Check soft reset asked */
 194         if (val & 0x01) {
 195             qemu_irq_raise(sysctrl->reset_irq);
 196         } else {
 197             qemu_irq_lower(sysctrl->reset_irq);
 198         }
 199         /* Check LE mode */
 200         if (val & 0x02) {
 201             sysctrl->endian = 1;
 202         } else {
 203             sysctrl->endian = 0;
 204         }
 205         break;
 206     case 0x0800:
 207         /* Motorola CPU configuration register : read-only */
 208         break;
 209     case 0x0802:
 210         /* Motorola base module feature register : read-only */
 211         break;
 212     case 0x0803:
 213         /* Motorola base module status register : read-only */
 214         break;
 215     case 0x0808:
 216         /* Hardfile light register */
 217         if (val & 1)
 218             sysctrl->state |= STATE_HARDFILE;
 219         else
 220             sysctrl->state &= ~STATE_HARDFILE;
 221         break;
 222     case 0x0810:
 223         /* Password protect 1 register */
 224         if (sysctrl->nvram != NULL) {
 225             NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram);
 226             (k->toggle_lock)(sysctrl->nvram, 1);
 227         }
 228         break;
 229     case 0x0812:
 230         /* Password protect 2 register */
 231         if (sysctrl->nvram != NULL) {
 232             NvramClass *k = NVRAM_GET_CLASS(sysctrl->nvram);
 233             (k->toggle_lock)(sysctrl->nvram, 2);
 234         }
 235         break;
 236     case 0x0814:
 237         /* L2 invalidate register */
 238         //        tlb_flush(first_cpu, 1);
 239         break;
 240     case 0x081C:
 241         /* system control register */
 242         sysctrl->syscontrol = val & 0x0F;
 243         break;
 244     case 0x0850:
 245         /* I/O map type register */
 246         sysctrl->contiguous_map = val & 0x01;
 247         qemu_set_irq(sysctrl->contiguous_map_irq, sysctrl->contiguous_map);
 248         break;
 249     default:
 250         printf("ERROR: unaffected IO port write: %04" PRIx32
 251                " => %02" PRIx32"\n", addr, val);
 252         break;
 253     }
 254 }
 255
 256 static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr)
 257 {
 258     sysctrl_t *sysctrl = opaque;
 259     uint32_t retval = 0xFF;
 260
 261     switch (addr) {
 262     case 0x0092:
 263         /* Special port 92 */
 264         retval = sysctrl->endian << 1;
 265         break;
 266     case 0x0800:
 267         /* Motorola CPU configuration register */
 268         retval = 0xEF; /* MPC750 */
 269         break;
 270     case 0x0802:
 271         /* Motorola Base module feature register */
 272         retval = 0xAD; /* No ESCC, PMC slot neither ethernet */
 273         break;
 274     case 0x0803:
 275         /* Motorola base module status register */
 276         retval = 0xE0; /* Standard MPC750 */
 277         break;
 278     case 0x080C:
 279         /* Equipment present register:
 280          *  no L2 cache
 281          *  no upgrade processor
 282          *  no cards in PCI slots
 283          *  SCSI fuse is bad
 284          */
 285         retval = 0x3C;
 286         break;
 287     case 0x0810:
 288         /* Motorola base module extended feature register */
 289         retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */
 290         break;
 291     case 0x0814:
 292         /* L2 invalidate: don't care */
 293         break;
 294     case 0x0818:
 295         /* Keylock */
 296         retval = 0x00;
 297         break;
 298     case 0x081C:
 299         /* system control register
 300          * 7 - 6 / 1 - 0: L2 cache enable
 301          */
 302         retval = sysctrl->syscontrol;
 303         break;
 304     case 0x0823:
 305         /* */
 306         retval = 0x03; /* no L2 cache */
 307         break;
 308     case 0x0850:
 309         /* I/O map type register */
 310         retval = sysctrl->contiguous_map;
 311         break;
 312     default:
 313         printf("ERROR: unaffected IO port: %04" PRIx32 " read\n", addr);
 314         break;
 315     }
 316     trace_prep_io_800_readb(addr - PPC_IO_BASE, retval);
 317
 318     return retval;
 319 }
 320
 321
 322 #define NVRAM_SIZE        0x2000
 323
 324 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
 325                             Error **errp)
 326 {
 327     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
 328 }
 329
 330 static void ppc_prep_reset(void *opaque)
 331 {
 332     PowerPCCPU *cpu = opaque;
 333
 334     cpu_reset(CPU(cpu));
 335 }
 336
 337 static const MemoryRegionPortio prep_portio_list[] = {
 338     /* System control ports */
 339     { 0x0092, 1, 1, .read = PREP_io_800_readb, .write = PREP_io_800_writeb, },
 340     { 0x0800, 0x52, 1,
 341       .read = PREP_io_800_readb, .write = PREP_io_800_writeb, },
 342     /* Special port to get debug messages from Open-Firmware */
 343     { 0x0F00, 4, 1, .write = PPC_debug_write, },
 344     PORTIO_END_OF_LIST(),
 345 };
 346
 347 static PortioList prep_port_list;
 348
 349 /*****************************************************************************/
 350 /* NVRAM helpers */
 351 static inline uint32_t nvram_read(Nvram *nvram, uint32_t addr)
 352 {
 353     NvramClass *k = NVRAM_GET_CLASS(nvram);
 354     return (k->read)(nvram, addr);
 355 }
 356
 357 static inline void nvram_write(Nvram *nvram, uint32_t addr, uint32_t val)
 358 {
 359     NvramClass *k = NVRAM_GET_CLASS(nvram);
 360     (k->write)(nvram, addr, val);
 361 }
 362
 363 static void NVRAM_set_byte(Nvram *nvram, uint32_t addr, uint8_t value)
 364 {
 365     nvram_write(nvram, addr, value);
 366 }
 367
 368 static uint8_t NVRAM_get_byte(Nvram *nvram, uint32_t addr)
 369 {
 370     return nvram_read(nvram, addr);
 371 }
 372
 373 static void NVRAM_set_word(Nvram *nvram, uint32_t addr, uint16_t value)
 374 {
 375     nvram_write(nvram, addr, value >> 8);
 376     nvram_write(nvram, addr + 1, value & 0xFF);
 377 }
 378
 379 static uint16_t NVRAM_get_word(Nvram *nvram, uint32_t addr)
 380 {
 381     uint16_t tmp;
 382
 383     tmp = nvram_read(nvram, addr) << 8;
 384     tmp |= nvram_read(nvram, addr + 1);
 385
 386     return tmp;
 387 }
 388
 389 static void NVRAM_set_lword(Nvram *nvram, uint32_t addr, uint32_t value)
 390 {
 391     nvram_write(nvram, addr, value >> 24);
 392     nvram_write(nvram, addr + 1, (value >> 16) & 0xFF);
 393     nvram_write(nvram, addr + 2, (value >> 8) & 0xFF);
 394     nvram_write(nvram, addr + 3, value & 0xFF);
 395 }
 396
 397 static void NVRAM_set_string(Nvram *nvram, uint32_t addr, const char *str,
 398                              uint32_t max)
 399 {
 400     int i;
 401
 402     for (i = 0; i < max && str[i] != '\0'; i++) {
 403         nvram_write(nvram, addr + i, str[i]);
 404     }
 405     nvram_write(nvram, addr + i, str[i]);
 406     nvram_write(nvram, addr + max - 1, '\0');
 407 }
 408
 409 static uint16_t NVRAM_crc_update (uint16_t prev, uint16_t value)
 410 {
 411     uint16_t tmp;
 412     uint16_t pd, pd1, pd2;
 413
 414     tmp = prev >> 8;
 415     pd = prev ^ value;
 416     pd1 = pd & 0x000F;
 417     pd2 = ((pd >> 4) & 0x000F) ^ pd1;
 418     tmp ^= (pd1 << 3) | (pd1 << 8);
 419     tmp ^= pd2 | (pd2 << 7) | (pd2 << 12);
 420
 421     return tmp;
 422 }
 423
 424 static uint16_t NVRAM_compute_crc (Nvram *nvram, uint32_t start, uint32_t count)
 425 {
 426     uint32_t i;
 427     uint16_t crc = 0xFFFF;
 428     int odd;
 429
 430     odd = count & 1;
 431     count &= ~1;
 432     for (i = 0; i != count; i++) {
 433         crc = NVRAM_crc_update(crc, NVRAM_get_word(nvram, start + i));
 434     }
 435     if (odd) {
 436         crc = NVRAM_crc_update(crc, NVRAM_get_byte(nvram, start + i) << 8);
 437     }
 438
 439     return crc;
 440 }
 441
 442 #define CMDLINE_ADDR 0x017ff000
 443
 444 static int PPC_NVRAM_set_params (Nvram *nvram, uint16_t NVRAM_size,
 445                           const char *arch,
 446                           uint32_t RAM_size, int boot_device,
 447                           uint32_t kernel_image, uint32_t kernel_size,
 448                           const char *cmdline,
 449                           uint32_t initrd_image, uint32_t initrd_size,
 450                           uint32_t NVRAM_image,
 451                           int width, int height, int depth)
 452 {
 453     uint16_t crc;
 454
 455     /* Set parameters for Open Hack'Ware BIOS */
 456     NVRAM_set_string(nvram, 0x00, "QEMU_BIOS", 16);
 457     NVRAM_set_lword(nvram,  0x10, 0x00000002); /* structure v2 */
 458     NVRAM_set_word(nvram,   0x14, NVRAM_size);
 459     NVRAM_set_string(nvram, 0x20, arch, 16);
 460     NVRAM_set_lword(nvram,  0x30, RAM_size);
 461     NVRAM_set_byte(nvram,   0x34, boot_device);
 462     NVRAM_set_lword(nvram,  0x38, kernel_image);
 463     NVRAM_set_lword(nvram,  0x3C, kernel_size);
 464     if (cmdline) {
 465         /* XXX: put the cmdline in NVRAM too ? */
 466         pstrcpy_targphys("cmdline", CMDLINE_ADDR, RAM_size - CMDLINE_ADDR,
 467                          cmdline);
 468         NVRAM_set_lword(nvram,  0x40, CMDLINE_ADDR);
 469         NVRAM_set_lword(nvram,  0x44, strlen(cmdline));
 470     } else {
 471         NVRAM_set_lword(nvram,  0x40, 0);
 472         NVRAM_set_lword(nvram,  0x44, 0);
 473     }
 474     NVRAM_set_lword(nvram,  0x48, initrd_image);
 475     NVRAM_set_lword(nvram,  0x4C, initrd_size);
 476     NVRAM_set_lword(nvram,  0x50, NVRAM_image);
 477
 478     NVRAM_set_word(nvram,   0x54, width);
 479     NVRAM_set_word(nvram,   0x56, height);
 480     NVRAM_set_word(nvram,   0x58, depth);
 481     crc = NVRAM_compute_crc(nvram, 0x00, 0xF8);
 482     NVRAM_set_word(nvram,   0xFC, crc);
 483
 484     return 0;
 485 }
 486
 487 /* PowerPC PREP hardware initialisation */
 488 static void ppc_prep_init(MachineState *machine)
 489 {
 490     ram_addr_t ram_size = machine->ram_size;
 491     const char *kernel_filename = machine->kernel_filename;
 492     const char *kernel_cmdline = machine->kernel_cmdline;
 493     const char *initrd_filename = machine->initrd_filename;
 494     const char *boot_device = machine->boot_order;
 495     MemoryRegion *sysmem = get_system_memory();
 496     PowerPCCPU *cpu = NULL;
 497     CPUPPCState *env = NULL;
 498     Nvram *m48t59;
 499 #if 0
 500     MemoryRegion *xcsr = g_new(MemoryRegion, 1);
 501 #endif
 502     int linux_boot, i, nb_nics1;
 503     MemoryRegion *ram = g_new(MemoryRegion, 1);
 504     uint32_t kernel_base, initrd_base;
 505     long kernel_size, initrd_size;
 506     DeviceState *dev;
 507     PCIHostState *pcihost;
 508     PCIBus *pci_bus;
 509     PCIDevice *pci;
 510     ISABus *isa_bus;
 511     ISADevice *isa;
 512     int ppc_boot_device;
 513     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 514
 515     sysctrl = g_malloc0(sizeof(sysctrl_t));
 516
 517     linux_boot = (kernel_filename != NULL);
 518
 519     /* init CPUs */
 520     if (machine->cpu_model == NULL)
 521         machine->cpu_model = "602";
 522     for (i = 0; i < smp_cpus; i++) {
 523         cpu = cpu_ppc_init(machine->cpu_model);
 524         if (cpu == NULL) {
 525             fprintf(stderr, "Unable to find PowerPC CPU definition\n");
 526             exit(1);
 527         }
 528         env = &cpu->env;
 529
 530         if (env->flags & POWERPC_FLAG_RTC_CLK) {
 531             /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
 532             cpu_ppc_tb_init(env, 7812500UL);
 533         } else {
 534             /* Set time-base frequency to 100 Mhz */
 535             cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
 536         }
 537         qemu_register_reset(ppc_prep_reset, cpu);
 538     }
 539
 540     /* allocate RAM */
 541     memory_region_allocate_system_memory(ram, NULL, "ppc_prep.ram", ram_size);
 542     memory_region_add_subregion(sysmem, 0, ram);
 543
 544     if (linux_boot) {
 545         kernel_base = KERNEL_LOAD_ADDR;
 546         /* now we can load the kernel */
 547         kernel_size = load_image_targphys(kernel_filename, kernel_base,
 548                                           ram_size - kernel_base);
 549         if (kernel_size < 0) {
 550             error_report("could not load kernel '%s'", kernel_filename);
 551             exit(1);
 552         }
 553         /* load initrd */
 554         if (initrd_filename) {
 555             initrd_base = INITRD_LOAD_ADDR;
 556             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 557                                               ram_size - initrd_base);
 558             if (initrd_size < 0) {
 559                 error_report("could not load initial ram disk '%s'",
 560                              initrd_filename);
 561                 exit(1);
 562             }
 563         } else {
 564             initrd_base = 0;
 565             initrd_size = 0;
 566         }
 567         ppc_boot_device = 'm';
 568     } else {
 569         kernel_base = 0;
 570         kernel_size = 0;
 571         initrd_base = 0;
 572         initrd_size = 0;
 573         ppc_boot_device = '\0';
 574         /* For now, OHW cannot boot from the network. */
 575         for (i = 0; boot_device[i] != '\0'; i++) {
 576             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 577                 ppc_boot_device = boot_device[i];
 578                 break;
 579             }
 580         }
 581         if (ppc_boot_device == '\0') {
 582             fprintf(stderr, "No valid boot device for Mac99 machine\n");
 583             exit(1);
 584         }
 585     }
 586
 587     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 588         error_report("Only 6xx bus is supported on PREP machine");
 589         exit(1);
 590     }
 591
 592     dev = qdev_create(NULL, "raven-pcihost");
 593     if (bios_name == NULL) {
 594         bios_name = BIOS_FILENAME;
 595     }
 596     qdev_prop_set_string(dev, "bios-name", bios_name);
 597     qdev_prop_set_uint32(dev, "elf-machine", PPC_ELF_MACHINE);
 598     pcihost = PCI_HOST_BRIDGE(dev);
 599     object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL);
 600     qdev_init_nofail(dev);
 601     pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
 602     if (pci_bus == NULL) {
 603         fprintf(stderr, "Couldn't create PCI host controller.\n");
 604         exit(1);
 605     }
 606     sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0);
 607
 608     /* PCI -> ISA bridge */
 609     pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378");
 610     cpu = POWERPC_CPU(first_cpu);
 611     qdev_connect_gpio_out(&pci->qdev, 0,
 612                           cpu->env.irq_inputs[PPC6xx_INPUT_INT]);
 613     sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9));
 614     sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11));
 615     sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9));
 616     sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));
 617     isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci), "isa.0"));
 618
 619     /* Super I/O (parallel + serial ports) */
 620     isa = isa_create(isa_bus, TYPE_PC87312);
 621     dev = DEVICE(isa);
 622     qdev_prop_set_uint8(dev, "config", 13); /* fdc, ser0, ser1, par0 */
 623     qdev_init_nofail(dev);
 624
 625     /* init basic PC hardware */
 626     pci_vga_init(pci_bus);
 627
 628     nb_nics1 = nb_nics;
 629     if (nb_nics1 > NE2000_NB_MAX)
 630         nb_nics1 = NE2000_NB_MAX;
 631     for(i = 0; i < nb_nics1; i++) {
 632         if (nd_table[i].model == NULL) {
 633             nd_table[i].model = g_strdup("ne2k_isa");
 634         }
 635         if (strcmp(nd_table[i].model, "ne2k_isa") == 0) {
 636             isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i],
 637                             &nd_table[i]);
 638         } else {
 639             pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 640         }
 641     }
 642
 643     ide_drive_get(hd, ARRAY_SIZE(hd));
 644     for(i = 0; i < MAX_IDE_BUS; i++) {
 645         isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i],
 646                      hd[2 * i],
 647                      hd[2 * i + 1]);
 648     }
 649     isa_create_simple(isa_bus, "i8042");
 650
 651     cpu = POWERPC_CPU(first_cpu);
 652     sysctrl->reset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET];
 653
 654     portio_list_init(&prep_port_list, NULL, prep_portio_list, sysctrl, "prep");
 655     portio_list_add(&prep_port_list, isa_address_space_io(isa), 0x0);
 656
 657     /* PowerPC control and status register group */
 658 #if 0
 659     memory_region_init_io(xcsr, NULL, &PPC_XCSR_ops, NULL, "ppc-xcsr", 0x1000);
 660     memory_region_add_subregion(sysmem, 0xFEFF0000, xcsr);
 661 #endif
 662
 663     if (machine_usb(machine)) {
 664         pci_create_simple(pci_bus, -1, "pci-ohci");
 665     }
 666
 667     m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 2000, 59);
 668     if (m48t59 == NULL)
 669         return;
 670     sysctrl->nvram = m48t59;
 671
 672     /* Initialise NVRAM */
 673     PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, "PREP", ram_size,
 674                          ppc_boot_device,
 675                          kernel_base, kernel_size,
 676                          kernel_cmdline,
 677                          initrd_base, initrd_size,
 678                          /* XXX: need an option to load a NVRAM image */
 679                          0,
 680                          graphic_width, graphic_height, graphic_depth);
 681 }
 682
 683 static void prep_machine_init(MachineClass *mc)
 684 {
 685     mc->desc = "PowerPC PREP platform";
 686     mc->init = ppc_prep_init;
 687     mc->block_default_type = IF_IDE;
 688     mc->max_cpus = MAX_CPUS;
 689     mc->default_boot_order = "cad";
 690 }
 691
 692 static int prep_set_cmos_checksum(DeviceState *dev, void *opaque)
 693 {
 694     uint16_t checksum = *(uint16_t *)opaque;
 695     ISADevice *rtc;
 696
 697     if (object_dynamic_cast(OBJECT(dev), "mc146818rtc")) {
 698         rtc = ISA_DEVICE(dev);
 699         rtc_set_memory(rtc, 0x2e, checksum & 0xff);
 700         rtc_set_memory(rtc, 0x3e, checksum & 0xff);
 701         rtc_set_memory(rtc, 0x2f, checksum >> 8);
 702         rtc_set_memory(rtc, 0x3f, checksum >> 8);
 703     }
 704     return 0;
 705 }
 706
 707 static void ibm_40p_init(MachineState *machine)
 708 {
 709     CPUPPCState *env = NULL;
 710     uint16_t cmos_checksum;
 711     PowerPCCPU *cpu;
 712     DeviceState *dev;
 713     SysBusDevice *pcihost;
 714     Nvram *m48t59 = NULL;
 715     PCIBus *pci_bus;
 716     ISABus *isa_bus;
 717     void *fw_cfg;
 718     int i;
 719     uint32_t kernel_base = 0, initrd_base = 0;
 720     long kernel_size = 0, initrd_size = 0;
 721     char boot_device;
 722
 723     /* init CPU */
 724     if (!machine->cpu_model) {
 725         machine->cpu_model = "604";
 726     }
 727     cpu = cpu_ppc_init(machine->cpu_model);
 728     if (!cpu) {
 729         error_report("could not initialize CPU '%s'",
 730                      machine->cpu_model);
 731         exit(1);
 732     }
 733     env = &cpu->env;
 734     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 735         error_report("only 6xx bus is supported on this machine");
 736         exit(1);
 737     }
 738
 739     if (env->flags & POWERPC_FLAG_RTC_CLK) {
 740         /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
 741         cpu_ppc_tb_init(env, 7812500UL);
 742     } else {
 743         /* Set time-base frequency to 100 Mhz */
 744         cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
 745     }
 746     qemu_register_reset(ppc_prep_reset, cpu);
 747
 748     /* PCI host */
 749     dev = qdev_create(NULL, "raven-pcihost");
 750     if (!bios_name) {
 751         bios_name = BIOS_FILENAME;
 752     }
 753     qdev_prop_set_string(dev, "bios-name", bios_name);
 754     qdev_prop_set_uint32(dev, "elf-machine", PPC_ELF_MACHINE);
 755     pcihost = SYS_BUS_DEVICE(dev);
 756     object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL);
 757     qdev_init_nofail(dev);
 758     pci_bus = PCI_BUS(qdev_get_child_bus(dev, "pci.0"));
 759     if (!pci_bus) {
 760         error_report("could not create PCI host controller");
 761         exit(1);
 762     }
 763
 764     /* PCI -> ISA bridge */
 765     dev = DEVICE(pci_create_simple(pci_bus, PCI_DEVFN(11, 0), "i82378"));
 766     qdev_connect_gpio_out(dev, 0,
 767                           cpu->env.irq_inputs[PPC6xx_INPUT_INT]);
 768     sysbus_connect_irq(pcihost, 0, qdev_get_gpio_in(dev, 15));
 769     sysbus_connect_irq(pcihost, 1, qdev_get_gpio_in(dev, 13));
 770     sysbus_connect_irq(pcihost, 2, qdev_get_gpio_in(dev, 15));
 771     sysbus_connect_irq(pcihost, 3, qdev_get_gpio_in(dev, 13));
 772     isa_bus = ISA_BUS(qdev_get_child_bus(dev, "isa.0"));
 773
 774     /* Memory controller */
 775     dev = DEVICE(isa_create(isa_bus, "rs6000-mc"));
 776     qdev_prop_set_uint32(dev, "ram-size", machine->ram_size);
 777     qdev_init_nofail(dev);
 778
 779     /* initialize CMOS checksums */
 780     cmos_checksum = 0x6aa9;
 781     qbus_walk_children(BUS(isa_bus), prep_set_cmos_checksum, NULL, NULL, NULL,
 782                        &cmos_checksum);
 783
 784     /* add some more devices */
 785     if (defaults_enabled()) {
 786         isa_create_simple(isa_bus, "i8042");
 787         m48t59 = NVRAM(isa_create_simple(isa_bus, "isa-m48t59"));
 788
 789         dev = DEVICE(isa_create(isa_bus, "cs4231a"));
 790         qdev_prop_set_uint32(dev, "iobase", 0x830);
 791         qdev_prop_set_uint32(dev, "irq", 10);
 792         qdev_init_nofail(dev);
 793
 794         dev = DEVICE(isa_create(isa_bus, "pc87312"));
 795         qdev_prop_set_uint32(dev, "config", 12);
 796         qdev_init_nofail(dev);
 797
 798         dev = DEVICE(isa_create(isa_bus, "prep-systemio"));
 799         qdev_prop_set_uint32(dev, "ibm-planar-id", 0xfc);
 800         qdev_prop_set_uint32(dev, "equipment", 0xc0);
 801         qdev_init_nofail(dev);
 802
 803         pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "lsi53c810");
 804
 805         /* XXX: s3-trio at PCI_DEVFN(2, 0) */
 806         pci_vga_init(pci_bus);
 807
 808         for (i = 0; i < nb_nics; i++) {
 809             pci_nic_init_nofail(&nd_table[i], pci_bus, "pcnet",
 810                                 i == 0 ? "3" : NULL);
 811         }
 812     }
 813
 814     /* Prepare firmware configuration for OpenBIOS */
 815     fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 816
 817     if (machine->kernel_filename) {
 818         /* load kernel */
 819         kernel_base = KERNEL_LOAD_ADDR;
 820         kernel_size = load_image_targphys(machine->kernel_filename,
 821                                           kernel_base,
 822                                           machine->ram_size - kernel_base);
 823         if (kernel_size < 0) {
 824             error_report("could not load kernel '%s'",
 825                          machine->kernel_filename);
 826             exit(1);
 827         }
 828         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 829         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 830         /* load initrd */
 831         if (machine->initrd_filename) {
 832             initrd_base = INITRD_LOAD_ADDR;
 833             initrd_size = load_image_targphys(machine->initrd_filename,
 834                                               initrd_base,
 835                                               machine->ram_size - initrd_base);
 836             if (initrd_size < 0) {
 837                 error_report("could not load initial ram disk '%s'",
 838                              machine->initrd_filename);
 839                 exit(1);
 840             }
 841             fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 842             fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 843         }
 844         if (machine->kernel_cmdline && *machine->kernel_cmdline) {
 845             fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
 846             pstrcpy_targphys("cmdline", CMDLINE_ADDR, TARGET_PAGE_SIZE,
 847                              machine->kernel_cmdline);
 848             fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA,
 849                               machine->kernel_cmdline);
 850             fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
 851                            strlen(machine->kernel_cmdline) + 1);
 852         }
 853         boot_device = 'm';
 854     } else {
 855         boot_device = machine->boot_order[0];
 856     }
 857
 858     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 859     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size);
 860     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_PREP);
 861
 862     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 863     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 864     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 865
 866     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 867     if (kvm_enabled()) {
 868 #ifdef CONFIG_KVM
 869         uint8_t *hypercall;
 870
 871         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());
 872         hypercall = g_malloc(16);
 873         kvmppc_get_hypercall(env, hypercall, 16);
 874         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 875         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 876 #endif
 877     } else {
 878         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, NANOSECONDS_PER_SECOND);
 879     }
 880     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_device);
 881     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 882
 883     /* Prepare firmware configuration for Open Hack'Ware */
 884     if (m48t59) {
 885         PPC_NVRAM_set_params(m48t59, NVRAM_SIZE, "PREP", ram_size,
 886                              boot_device,
 887                              kernel_base, kernel_size,
 888                              machine->kernel_cmdline,
 889                              initrd_base, initrd_size,
 890                              /* XXX: need an option to load a NVRAM image */
 891                              0,
 892                              graphic_width, graphic_height, graphic_depth);
 893     }
 894 }
 895
 896 static void ibm_40p_machine_init(MachineClass *mc)
 897 {
 898     mc->desc = "IBM RS/6000 7020 (40p)",
 899     mc->init = ibm_40p_init;
 900     mc->max_cpus = 1;
 901     mc->pci_allow_0_address = true;
 902     mc->default_ram_size = 128 * M_BYTE;
 903     mc->block_default_type = IF_SCSI;
 904     mc->default_boot_order = "c";
 905 }
 906
 907 DEFINE_MACHINE("40p", ibm_40p_machine_init)
 908 DEFINE_MACHINE("prep", prep_machine_init)