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/ppc/ppc.h"
  32#include "hw/qdev-properties.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/loader.h"
  45#include "hw/fw-path-provider.h"
  46#include "elf.h"
  47#include "qemu/error-report.h"
  48#include "sysemu/kvm.h"
  49#include "sysemu/reset.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#define PROM_BASE 0xffc00000
  63#define PROM_SIZE (4 * MiB)
  64
  65static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  66                            Error **errp)
  67{
  68    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  69}
  70
  71static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  72{
  73    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  74}
  75
  76static void ppc_heathrow_reset(void *opaque)
  77{
  78    PowerPCCPU *cpu = opaque;
  79
  80    cpu_reset(CPU(cpu));
  81}
  82
  83static void ppc_heathrow_init(MachineState *machine)
  84{
  85    ram_addr_t ram_size = machine->ram_size;
  86    const char *boot_device = machine->boot_order;
  87    PowerPCCPU *cpu = NULL;
  88    CPUPPCState *env = NULL;
  89    char *filename;
  90    int i;
  91    MemoryRegion *bios = g_new(MemoryRegion, 1);
  92    uint32_t kernel_base, initrd_base, cmdline_base = 0;
  93    int32_t kernel_size, initrd_size;
  94    PCIBus *pci_bus;
  95    PCIDevice *macio;
  96    MACIOIDEState *macio_ide;
  97    ESCCState *escc;
  98    SysBusDevice *s;
  99    DeviceState *dev, *pic_dev;
 100    BusState *adb_bus;
 101    uint64_t bios_addr;
 102    int bios_size;
 103    unsigned int smp_cpus = machine->smp.cpus;
 104    uint16_t ppc_boot_device;
 105    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 106    void *fw_cfg;
 107    uint64_t tbfreq;
 108
 109    /* init CPUs */
 110    for (i = 0; i < smp_cpus; i++) {
 111        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 112        env = &cpu->env;
 113
 114        /* Set time-base frequency to 16.6 Mhz */
 115        cpu_ppc_tb_init(env,  TBFREQ);
 116        qemu_register_reset(ppc_heathrow_reset, cpu);
 117    }
 118
 119    /* allocate RAM */
 120    if (ram_size > 2047 * MiB) {
 121        error_report("Too much memory for this machine: %" PRId64 " MB, "
 122                     "maximum 2047 MB", ram_size / MiB);
 123        exit(1);
 124    }
 125
 126    memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 127
 128    /* allocate and load firmware ROM */
 129    memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
 130                           &error_fatal);
 131    memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
 132
 133    if (!bios_name) {
 134        bios_name = PROM_FILENAME;
 135    }
 136    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 137    if (filename) {
 138        /* Load OpenBIOS (ELF) */
 139        bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 140                             NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 141        /* Unfortunately, load_elf sign-extends reading elf32 */
 142        bios_addr = (uint32_t)bios_addr;
 143
 144        if (bios_size <= 0) {
 145            /* or if could not load ELF try loading a binary ROM image */
 146            bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 147            bios_addr = PROM_BASE;
 148        }
 149        g_free(filename);
 150    } else {
 151        bios_size = -1;
 152    }
 153    if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 154        error_report("could not load PowerPC bios '%s'", bios_name);
 155        exit(1);
 156    }
 157
 158    if (machine->kernel_filename) {
 159        int bswap_needed;
 160
 161#ifdef BSWAP_NEEDED
 162        bswap_needed = 1;
 163#else
 164        bswap_needed = 0;
 165#endif
 166        kernel_base = KERNEL_LOAD_ADDR;
 167        kernel_size = load_elf(machine->kernel_filename, NULL,
 168                               translate_kernel_address, NULL, NULL, NULL,
 169                               NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 170        if (kernel_size < 0)
 171            kernel_size = load_aout(machine->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(machine->kernel_filename,
 176                                              kernel_base,
 177                                              ram_size - kernel_base);
 178        if (kernel_size < 0) {
 179            error_report("could not load kernel '%s'",
 180                         machine->kernel_filename);
 181            exit(1);
 182        }
 183        /* load initrd */
 184        if (machine->initrd_filename) {
 185            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 186                                            KERNEL_GAP);
 187            initrd_size = load_image_targphys(machine->initrd_filename,
 188                                              initrd_base,
 189                                              ram_size - initrd_base);
 190            if (initrd_size < 0) {
 191                error_report("could not load initial ram disk '%s'",
 192                             machine->initrd_filename);
 193                exit(1);
 194            }
 195            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 196        } else {
 197            initrd_base = 0;
 198            initrd_size = 0;
 199            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 200        }
 201        ppc_boot_device = 'm';
 202    } else {
 203        kernel_base = 0;
 204        kernel_size = 0;
 205        initrd_base = 0;
 206        initrd_size = 0;
 207        ppc_boot_device = '\0';
 208        for (i = 0; boot_device[i] != '\0'; i++) {
 209            /* TOFIX: for now, the second IDE channel is not properly
 210             *        used by OHW. The Mac floppy disk are not emulated.
 211             *        For now, OHW cannot boot from the network.
 212             */
 213#if 0
 214            if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 215                ppc_boot_device = boot_device[i];
 216                break;
 217            }
 218#else
 219            if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 220                ppc_boot_device = boot_device[i];
 221                break;
 222            }
 223#endif
 224        }
 225        if (ppc_boot_device == '\0') {
 226            error_report("No valid boot device for G3 Beige machine");
 227            exit(1);
 228        }
 229    }
 230
 231    /* XXX: we register only 1 output pin for heathrow PIC */
 232    pic_dev = qdev_new(TYPE_HEATHROW);
 233    sysbus_realize_and_unref(SYS_BUS_DEVICE(pic_dev), &error_fatal);
 234
 235    /* Connect the heathrow PIC outputs to the 6xx bus */
 236    for (i = 0; i < smp_cpus; i++) {
 237        switch (PPC_INPUT(env)) {
 238        case PPC_FLAGS_INPUT_6xx:
 239            qdev_connect_gpio_out(pic_dev, 0,
 240                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 241            break;
 242        default:
 243            error_report("Bus model not supported on OldWorld Mac machine");
 244            exit(1);
 245        }
 246    }
 247
 248    /* Timebase Frequency */
 249    if (kvm_enabled()) {
 250        tbfreq = kvmppc_get_tbfreq();
 251    } else {
 252        tbfreq = TBFREQ;
 253    }
 254
 255    /* init basic PC hardware */
 256    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 257        error_report("Only 6xx bus is supported on heathrow machine");
 258        exit(1);
 259    }
 260
 261    /* Grackle PCI host bridge */
 262    dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 263    qdev_prop_set_uint32(dev, "ofw-addr", 0x80000000);
 264    s = SYS_BUS_DEVICE(dev);
 265    sysbus_realize_and_unref(s, &error_fatal);
 266
 267    sysbus_mmio_map(s, 0, GRACKLE_BASE);
 268    sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 269    /* PCI hole */
 270    memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 271                                sysbus_mmio_get_region(s, 2));
 272    /* Register 2 MB of ISA IO space */
 273    memory_region_add_subregion(get_system_memory(), 0xfe000000,
 274                                sysbus_mmio_get_region(s, 3));
 275
 276    for (i = 0; i < 4; i++) {
 277        qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(pic_dev, 0x15 + i));
 278    }
 279
 280    pci_bus = PCI_HOST_BRIDGE(dev)->bus;
 281
 282    pci_vga_init(pci_bus);
 283
 284    for (i = 0; i < nb_nics; i++) {
 285        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 286    }
 287
 288    ide_drive_get(hd, ARRAY_SIZE(hd));
 289
 290    /* MacIO */
 291    macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO);
 292    dev = DEVICE(macio);
 293    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 294    object_property_set_link(OBJECT(macio), "pic", OBJECT(pic_dev),
 295                             &error_abort);
 296
 297    escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc"));
 298    qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0));
 299    qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1));
 300
 301    pci_realize_and_unref(macio, pci_bus, &error_fatal);
 302
 303    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 304                                                        "ide[0]"));
 305    macio_ide_init_drives(macio_ide, hd);
 306
 307    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 308                                                        "ide[1]"));
 309    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 310
 311    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 312    adb_bus = qdev_get_child_bus(dev, "adb.0");
 313    dev = qdev_new(TYPE_ADB_KEYBOARD);
 314    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 315    dev = qdev_new(TYPE_ADB_MOUSE);
 316    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 317
 318    if (machine_usb(machine)) {
 319        pci_create_simple(pci_bus, -1, "pci-ohci");
 320    }
 321
 322    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 323        graphic_depth = 15;
 324
 325    /* No PCI init: the BIOS will do it */
 326
 327    dev = qdev_new(TYPE_FW_CFG_MEM);
 328    fw_cfg = FW_CFG(dev);
 329    qdev_prop_set_uint32(dev, "data_width", 1);
 330    qdev_prop_set_bit(dev, "dma_enabled", false);
 331    object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 332                              OBJECT(fw_cfg));
 333    s = SYS_BUS_DEVICE(dev);
 334    sysbus_realize_and_unref(s, &error_fatal);
 335    sysbus_mmio_map(s, 0, CFG_ADDR);
 336    sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 337
 338    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 339    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 340    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 341    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 342    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 343    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 344    if (machine->kernel_cmdline) {
 345        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 346        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 347                         machine->kernel_cmdline);
 348    } else {
 349        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 350    }
 351    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 352    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 353    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 354
 355    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 356    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 357    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 358
 359    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 360    if (kvm_enabled()) {
 361        uint8_t *hypercall;
 362
 363        hypercall = g_malloc(16);
 364        kvmppc_get_hypercall(env, hypercall, 16);
 365        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 366        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 367    }
 368    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 369    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 370    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 371    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 372
 373    /* MacOS NDRV VGA driver */
 374    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 375    if (filename) {
 376        gchar *ndrv_file;
 377        gsize ndrv_size;
 378
 379        if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 380            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 381        }
 382        g_free(filename);
 383    }
 384
 385    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 386}
 387
 388/*
 389 * Implementation of an interface to adjust firmware path
 390 * for the bootindex property handling.
 391 */
 392static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 393                                  DeviceState *dev)
 394{
 395    PCIDevice *pci;
 396    IDEBus *ide_bus;
 397    IDEState *ide_s;
 398    MACIOIDEState *macio_ide;
 399
 400    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 401        pci = PCI_DEVICE(dev);
 402        return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 403    }
 404
 405    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 406        macio_ide = MACIO_IDE(dev);
 407        return g_strdup_printf("ata-3@%x", macio_ide->addr);
 408    }
 409
 410    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-drive")) {
 411        ide_bus = IDE_BUS(qdev_get_parent_bus(dev));
 412        ide_s = idebus_active_if(ide_bus);
 413
 414        if (ide_s->drive_kind == IDE_CD) {
 415            return g_strdup("cdrom");
 416        }
 417
 418        return g_strdup("disk");
 419    }
 420
 421    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 422        return g_strdup("disk");
 423    }
 424
 425    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 426        return g_strdup("cdrom");
 427    }
 428
 429    if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 430        return g_strdup("disk");
 431    }
 432
 433    return NULL;
 434}
 435
 436static int heathrow_kvm_type(MachineState *machine, const char *arg)
 437{
 438    /* Always force PR KVM */
 439    return 2;
 440}
 441
 442static void heathrow_class_init(ObjectClass *oc, void *data)
 443{
 444    MachineClass *mc = MACHINE_CLASS(oc);
 445    FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 446
 447    mc->desc = "Heathrow based PowerMAC";
 448    mc->init = ppc_heathrow_init;
 449    mc->block_default_type = IF_IDE;
 450    mc->max_cpus = MAX_CPUS;
 451#ifndef TARGET_PPC64
 452    mc->is_default = true;
 453#endif
 454    /* TOFIX "cad" when Mac floppy is implemented */
 455    mc->default_boot_order = "cd";
 456    mc->kvm_type = heathrow_kvm_type;
 457    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 458    mc->default_display = "std";
 459    mc->ignore_boot_device_suffixes = true;
 460    mc->default_ram_id = "ppc_heathrow.ram";
 461    fwc->get_dev_path = heathrow_fw_dev_path;
 462}
 463
 464static const TypeInfo ppc_heathrow_machine_info = {
 465    .name          = MACHINE_TYPE_NAME("g3beige"),
 466    .parent        = TYPE_MACHINE,
 467    .class_init    = heathrow_class_init,
 468    .interfaces = (InterfaceInfo[]) {
 469        { TYPE_FW_PATH_PROVIDER },
 470        { }
 471    },
 472};
 473
 474static void ppc_heathrow_register_types(void)
 475{
 476    type_register_static(&ppc_heathrow_machine_info);
 477}
 478
 479type_init(ppc_heathrow_register_types);
 480