qemu/hw/ppc/mac_oldworld.c
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   1
   2/*
   3 * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator
   4 *
   5 * Copyright (c) 2004-2007 Fabrice Bellard
   6 * Copyright (c) 2007 Jocelyn Mayer
   7 *
   8 * Permission is hereby granted, free of charge, to any person obtaining a copy
   9 * of this software and associated documentation files (the "Software"), to deal
  10 * in the Software without restriction, including without limitation the rights
  11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 * copies of the Software, and to permit persons to whom the Software is
  13 * furnished to do so, subject to the following conditions:
  14 *
  15 * The above copyright notice and this permission notice shall be included in
  16 * all copies or substantial portions of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24 * THE SOFTWARE.
  25 */
  26
  27#include "qemu/osdep.h"
  28#include "qemu-common.h"
  29#include "qemu/units.h"
  30#include "qapi/error.h"
  31#include "hw/hw.h"
  32#include "hw/ppc/ppc.h"
  33#include "mac.h"
  34#include "hw/input/adb.h"
  35#include "sysemu/sysemu.h"
  36#include "net/net.h"
  37#include "hw/isa/isa.h"
  38#include "hw/pci/pci.h"
  39#include "hw/pci/pci_host.h"
  40#include "hw/boards.h"
  41#include "hw/nvram/fw_cfg.h"
  42#include "hw/char/escc.h"
  43#include "hw/misc/macio/macio.h"
  44#include "hw/ide.h"
  45#include "hw/loader.h"
  46#include "hw/fw-path-provider.h"
  47#include "elf.h"
  48#include "qemu/error-report.h"
  49#include "sysemu/kvm.h"
  50#include "kvm_ppc.h"
  51#include "exec/address-spaces.h"
  52
  53#define MAX_IDE_BUS 2
  54#define CFG_ADDR 0xf0000510
  55#define TBFREQ 16600000UL
  56#define CLOCKFREQ 266000000UL
  57#define BUSFREQ 66000000UL
  58
  59#define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  60
  61#define GRACKLE_BASE 0xfec00000
  62
  63static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  64                            Error **errp)
  65{
  66    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  67}
  68
  69static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  70{
  71    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  72}
  73
  74static void ppc_heathrow_reset(void *opaque)
  75{
  76    PowerPCCPU *cpu = opaque;
  77
  78    cpu_reset(CPU(cpu));
  79}
  80
  81static void ppc_heathrow_init(MachineState *machine)
  82{
  83    ram_addr_t ram_size = machine->ram_size;
  84    const char *kernel_filename = machine->kernel_filename;
  85    const char *kernel_cmdline = machine->kernel_cmdline;
  86    const char *initrd_filename = machine->initrd_filename;
  87    const char *boot_device = machine->boot_order;
  88    MemoryRegion *sysmem = get_system_memory();
  89    PowerPCCPU *cpu = NULL;
  90    CPUPPCState *env = NULL;
  91    char *filename;
  92    int linux_boot, i;
  93    MemoryRegion *ram = g_new(MemoryRegion, 1);
  94    MemoryRegion *bios = g_new(MemoryRegion, 1);
  95    uint32_t kernel_base, initrd_base, cmdline_base = 0;
  96    int32_t kernel_size, initrd_size;
  97    PCIBus *pci_bus;
  98    OldWorldMacIOState *macio;
  99    MACIOIDEState *macio_ide;
 100    SysBusDevice *s;
 101    DeviceState *dev, *pic_dev;
 102    BusState *adb_bus;
 103    int bios_size;
 104    unsigned int smp_cpus = machine->smp.cpus;
 105    uint16_t ppc_boot_device;
 106    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 107    void *fw_cfg;
 108    uint64_t tbfreq;
 109
 110    linux_boot = (kernel_filename != NULL);
 111
 112    /* init CPUs */
 113    for (i = 0; i < smp_cpus; i++) {
 114        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 115        env = &cpu->env;
 116
 117        /* Set time-base frequency to 16.6 Mhz */
 118        cpu_ppc_tb_init(env,  TBFREQ);
 119        qemu_register_reset(ppc_heathrow_reset, cpu);
 120    }
 121
 122    /* allocate RAM */
 123    if (ram_size > 2047 * MiB) {
 124        error_report("Too much memory for this machine: %" PRId64 " MB, "
 125                     "maximum 2047 MB", ram_size / MiB);
 126        exit(1);
 127    }
 128
 129    memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 130                                         ram_size);
 131    memory_region_add_subregion(sysmem, 0, ram);
 132
 133    /* allocate and load BIOS */
 134    memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 135                           &error_fatal);
 136
 137    if (bios_name == NULL)
 138        bios_name = PROM_FILENAME;
 139    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 140    memory_region_set_readonly(bios, true);
 141    memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 142
 143    /* Load OpenBIOS (ELF) */
 144    if (filename) {
 145        bios_size = load_elf(filename, NULL, 0, NULL, NULL, NULL, NULL,
 146                             1, PPC_ELF_MACHINE, 0, 0);
 147        g_free(filename);
 148    } else {
 149        bios_size = -1;
 150    }
 151    if (bios_size < 0 || bios_size > BIOS_SIZE) {
 152        error_report("could not load PowerPC bios '%s'", bios_name);
 153        exit(1);
 154    }
 155
 156    if (linux_boot) {
 157        uint64_t lowaddr = 0;
 158        int bswap_needed;
 159
 160#ifdef BSWAP_NEEDED
 161        bswap_needed = 1;
 162#else
 163        bswap_needed = 0;
 164#endif
 165        kernel_base = KERNEL_LOAD_ADDR;
 166        kernel_size = load_elf(kernel_filename, NULL,
 167                               translate_kernel_address, NULL,
 168                               NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 169                               0, 0);
 170        if (kernel_size < 0)
 171            kernel_size = load_aout(kernel_filename, kernel_base,
 172                                    ram_size - kernel_base, bswap_needed,
 173                                    TARGET_PAGE_SIZE);
 174        if (kernel_size < 0)
 175            kernel_size = load_image_targphys(kernel_filename,
 176                                              kernel_base,
 177                                              ram_size - kernel_base);
 178        if (kernel_size < 0) {
 179            error_report("could not load kernel '%s'", kernel_filename);
 180            exit(1);
 181        }
 182        /* load initrd */
 183        if (initrd_filename) {
 184            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 185            initrd_size = load_image_targphys(initrd_filename, initrd_base,
 186                                              ram_size - initrd_base);
 187            if (initrd_size < 0) {
 188                error_report("could not load initial ram disk '%s'",
 189                             initrd_filename);
 190                exit(1);
 191            }
 192            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 193        } else {
 194            initrd_base = 0;
 195            initrd_size = 0;
 196            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 197        }
 198        ppc_boot_device = 'm';
 199    } else {
 200        kernel_base = 0;
 201        kernel_size = 0;
 202        initrd_base = 0;
 203        initrd_size = 0;
 204        ppc_boot_device = '\0';
 205        for (i = 0; boot_device[i] != '\0'; i++) {
 206            /* TOFIX: for now, the second IDE channel is not properly
 207             *        used by OHW. The Mac floppy disk are not emulated.
 208             *        For now, OHW cannot boot from the network.
 209             */
 210#if 0
 211            if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 212                ppc_boot_device = boot_device[i];
 213                break;
 214            }
 215#else
 216            if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 217                ppc_boot_device = boot_device[i];
 218                break;
 219            }
 220#endif
 221        }
 222        if (ppc_boot_device == '\0') {
 223            error_report("No valid boot device for G3 Beige machine");
 224            exit(1);
 225        }
 226    }
 227
 228    /* XXX: we register only 1 output pin for heathrow PIC */
 229    pic_dev = qdev_create(NULL, TYPE_HEATHROW);
 230    qdev_init_nofail(pic_dev);
 231
 232    /* Connect the heathrow PIC outputs to the 6xx bus */
 233    for (i = 0; i < smp_cpus; i++) {
 234        switch (PPC_INPUT(env)) {
 235        case PPC_FLAGS_INPUT_6xx:
 236            qdev_connect_gpio_out(pic_dev, 0,
 237                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 238            break;
 239        default:
 240            error_report("Bus model not supported on OldWorld Mac machine");
 241            exit(1);
 242        }
 243    }
 244
 245    /* Timebase Frequency */
 246    if (kvm_enabled()) {
 247        tbfreq = kvmppc_get_tbfreq();
 248    } else {
 249        tbfreq = TBFREQ;
 250    }
 251
 252    /* init basic PC hardware */
 253    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 254        error_report("Only 6xx bus is supported on heathrow machine");
 255        exit(1);
 256    }
 257
 258    /* Grackle PCI host bridge */
 259    dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE);
 260    qdev_prop_set_uint32(dev, "ofw-addr", 0x80000000);
 261    object_property_set_link(OBJECT(dev), OBJECT(pic_dev), "pic",
 262                             &error_abort);
 263    qdev_init_nofail(dev);
 264    s = SYS_BUS_DEVICE(dev);
 265    sysbus_mmio_map(s, 0, GRACKLE_BASE);
 266    sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 267    /* PCI hole */
 268    memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 269                                sysbus_mmio_get_region(s, 2));
 270    /* Register 2 MB of ISA IO space */
 271    memory_region_add_subregion(get_system_memory(), 0xfe000000,
 272                                sysbus_mmio_get_region(s, 3));
 273
 274    pci_bus = PCI_HOST_BRIDGE(dev)->bus;
 275
 276    pci_vga_init(pci_bus);
 277
 278    for (i = 0; i < nb_nics; i++) {
 279        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 280    }
 281
 282    ide_drive_get(hd, ARRAY_SIZE(hd));
 283
 284    /* MacIO */
 285    macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO));
 286    dev = DEVICE(macio);
 287    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 288    object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic",
 289                             &error_abort);
 290    qdev_init_nofail(dev);
 291
 292    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 293                                                        "ide[0]"));
 294    macio_ide_init_drives(macio_ide, hd);
 295
 296    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 297                                                        "ide[1]"));
 298    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 299
 300    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 301    adb_bus = qdev_get_child_bus(dev, "adb.0");
 302    dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 303    qdev_init_nofail(dev);
 304    dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 305    qdev_init_nofail(dev);
 306
 307    if (machine_usb(machine)) {
 308        pci_create_simple(pci_bus, -1, "pci-ohci");
 309    }
 310
 311    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 312        graphic_depth = 15;
 313
 314    /* No PCI init: the BIOS will do it */
 315
 316    dev = qdev_create(NULL, TYPE_FW_CFG_MEM);
 317    fw_cfg = FW_CFG(dev);
 318    qdev_prop_set_uint32(dev, "data_width", 1);
 319    qdev_prop_set_bit(dev, "dma_enabled", false);
 320    object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 321                              OBJECT(fw_cfg), NULL);
 322    qdev_init_nofail(dev);
 323    s = SYS_BUS_DEVICE(dev);
 324    sysbus_mmio_map(s, 0, CFG_ADDR);
 325    sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 326
 327    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 328    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 329    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 330    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 331    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 332    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 333    if (kernel_cmdline) {
 334        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 335        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 336    } else {
 337        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 338    }
 339    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 340    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 341    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 342
 343    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 344    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 345    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 346
 347    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 348    if (kvm_enabled()) {
 349        uint8_t *hypercall;
 350
 351        hypercall = g_malloc(16);
 352        kvmppc_get_hypercall(env, hypercall, 16);
 353        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 354        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 355    }
 356    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 357    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 358    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 359    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 360
 361    /* MacOS NDRV VGA driver */
 362    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 363    if (filename) {
 364        gchar *ndrv_file;
 365        gsize ndrv_size;
 366
 367        if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 368            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 369        }
 370        g_free(filename);
 371    }
 372
 373    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 374}
 375
 376/*
 377 * Implementation of an interface to adjust firmware path
 378 * for the bootindex property handling.
 379 */
 380static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 381                                  DeviceState *dev)
 382{
 383    PCIDevice *pci;
 384    IDEBus *ide_bus;
 385    IDEState *ide_s;
 386    MACIOIDEState *macio_ide;
 387
 388    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 389        pci = PCI_DEVICE(dev);
 390        return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 391    }
 392
 393    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 394        macio_ide = MACIO_IDE(dev);
 395        return g_strdup_printf("ata-3@%x", macio_ide->addr);
 396    }
 397
 398    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-drive")) {
 399        ide_bus = IDE_BUS(qdev_get_parent_bus(dev));
 400        ide_s = idebus_active_if(ide_bus);
 401
 402        if (ide_s->drive_kind == IDE_CD) {
 403            return g_strdup("cdrom");
 404        }
 405
 406        return g_strdup("disk");
 407    }
 408
 409    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 410        return g_strdup("disk");
 411    }
 412
 413    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 414        return g_strdup("cdrom");
 415    }
 416
 417    if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 418        return g_strdup("disk");
 419    }
 420
 421    return NULL;
 422}
 423
 424static int heathrow_kvm_type(MachineState *machine, const char *arg)
 425{
 426    /* Always force PR KVM */
 427    return 2;
 428}
 429
 430static void heathrow_class_init(ObjectClass *oc, void *data)
 431{
 432    MachineClass *mc = MACHINE_CLASS(oc);
 433    FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 434
 435    mc->desc = "Heathrow based PowerMAC";
 436    mc->init = ppc_heathrow_init;
 437    mc->block_default_type = IF_IDE;
 438    mc->max_cpus = MAX_CPUS;
 439#ifndef TARGET_PPC64
 440    mc->is_default = 1;
 441#endif
 442    /* TOFIX "cad" when Mac floppy is implemented */
 443    mc->default_boot_order = "cd";
 444    mc->kvm_type = heathrow_kvm_type;
 445    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 446    mc->default_display = "std";
 447    mc->ignore_boot_device_suffixes = true;
 448    fwc->get_dev_path = heathrow_fw_dev_path;
 449}
 450
 451static const TypeInfo ppc_heathrow_machine_info = {
 452    .name          = MACHINE_TYPE_NAME("g3beige"),
 453    .parent        = TYPE_MACHINE,
 454    .class_init    = heathrow_class_init,
 455    .interfaces = (InterfaceInfo[]) {
 456        { TYPE_FW_PATH_PROVIDER },
 457        { }
 458    },
 459};
 460
 461static void ppc_heathrow_register_types(void)
 462{
 463    type_register_static(&ppc_heathrow_machine_info);
 464}
 465
 466type_init(ppc_heathrow_register_types);
 467