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/datadir.h"
  30#include "qemu/units.h"
  31#include "qapi/error.h"
  32#include "hw/ppc/ppc.h"
  33#include "hw/qdev-properties.h"
  34#include "mac.h"
  35#include "hw/input/adb.h"
  36#include "sysemu/sysemu.h"
  37#include "net/net.h"
  38#include "hw/isa/isa.h"
  39#include "hw/pci/pci.h"
  40#include "hw/pci/pci_host.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
  52#define MAX_IDE_BUS 2
  53#define CFG_ADDR 0xf0000510
  54#define TBFREQ 16600000UL
  55#define CLOCKFREQ 266000000UL
  56#define BUSFREQ 66000000UL
  57
  58#define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  59
  60#define GRACKLE_BASE 0xfec00000
  61#define PROM_BASE 0xffc00000
  62#define PROM_SIZE (4 * MiB)
  63
  64static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  65                            Error **errp)
  66{
  67    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  68}
  69
  70static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  71{
  72    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  73}
  74
  75static void ppc_heathrow_reset(void *opaque)
  76{
  77    PowerPCCPU *cpu = opaque;
  78
  79    cpu_reset(CPU(cpu));
  80}
  81
  82static void ppc_heathrow_init(MachineState *machine)
  83{
  84    ram_addr_t ram_size = machine->ram_size;
  85    const char *bios_name = machine->firmware ?: PROM_FILENAME;
  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, *grackle_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    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 134    if (filename) {
 135        /* Load OpenBIOS (ELF) */
 136        bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 137                             NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 138        /* Unfortunately, load_elf sign-extends reading elf32 */
 139        bios_addr = (uint32_t)bios_addr;
 140
 141        if (bios_size <= 0) {
 142            /* or if could not load ELF try loading a binary ROM image */
 143            bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 144            bios_addr = PROM_BASE;
 145        }
 146        g_free(filename);
 147    } else {
 148        bios_size = -1;
 149    }
 150    if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 151        error_report("could not load PowerPC bios '%s'", bios_name);
 152        exit(1);
 153    }
 154
 155    if (machine->kernel_filename) {
 156        int bswap_needed;
 157
 158#ifdef BSWAP_NEEDED
 159        bswap_needed = 1;
 160#else
 161        bswap_needed = 0;
 162#endif
 163        kernel_base = KERNEL_LOAD_ADDR;
 164        kernel_size = load_elf(machine->kernel_filename, NULL,
 165                               translate_kernel_address, NULL, NULL, NULL,
 166                               NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 167        if (kernel_size < 0)
 168            kernel_size = load_aout(machine->kernel_filename, kernel_base,
 169                                    ram_size - kernel_base, bswap_needed,
 170                                    TARGET_PAGE_SIZE);
 171        if (kernel_size < 0)
 172            kernel_size = load_image_targphys(machine->kernel_filename,
 173                                              kernel_base,
 174                                              ram_size - kernel_base);
 175        if (kernel_size < 0) {
 176            error_report("could not load kernel '%s'",
 177                         machine->kernel_filename);
 178            exit(1);
 179        }
 180        /* load initrd */
 181        if (machine->initrd_filename) {
 182            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 183                                            KERNEL_GAP);
 184            initrd_size = load_image_targphys(machine->initrd_filename,
 185                                              initrd_base,
 186                                              ram_size - initrd_base);
 187            if (initrd_size < 0) {
 188                error_report("could not load initial ram disk '%s'",
 189                             machine->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    /* Timebase Frequency */
 229    if (kvm_enabled()) {
 230        tbfreq = kvmppc_get_tbfreq();
 231    } else {
 232        tbfreq = TBFREQ;
 233    }
 234
 235    /* Grackle PCI host bridge */
 236    grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 237    qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 238    s = SYS_BUS_DEVICE(grackle_dev);
 239    sysbus_realize_and_unref(s, &error_fatal);
 240
 241    sysbus_mmio_map(s, 0, GRACKLE_BASE);
 242    sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 243    /* PCI hole */
 244    memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 245                                sysbus_mmio_get_region(s, 2));
 246    /* Register 2 MB of ISA IO space */
 247    memory_region_add_subregion(get_system_memory(), 0xfe000000,
 248                                sysbus_mmio_get_region(s, 3));
 249
 250    pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 251
 252    /* MacIO */
 253    macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO);
 254    dev = DEVICE(macio);
 255    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 256
 257    escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc"));
 258    qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0));
 259    qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1));
 260
 261    pci_realize_and_unref(macio, pci_bus, &error_fatal);
 262
 263    pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic"));
 264    for (i = 0; i < 4; i++) {
 265        qdev_connect_gpio_out(grackle_dev, i,
 266                              qdev_get_gpio_in(pic_dev, 0x15 + i));
 267    }
 268
 269    /* Connect the heathrow PIC outputs to the 6xx bus */
 270    for (i = 0; i < smp_cpus; i++) {
 271        switch (PPC_INPUT(env)) {
 272        case PPC_FLAGS_INPUT_6xx:
 273            /* XXX: we register only 1 output pin for heathrow PIC */
 274            qdev_connect_gpio_out(pic_dev, 0,
 275                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 276            break;
 277        default:
 278            error_report("Bus model not supported on OldWorld Mac machine");
 279            exit(1);
 280        }
 281    }
 282
 283    pci_vga_init(pci_bus);
 284
 285    for (i = 0; i < nb_nics; i++) {
 286        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 287    }
 288
 289    /* MacIO IDE */
 290    ide_drive_get(hd, ARRAY_SIZE(hd));
 291    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 292                                                        "ide[0]"));
 293    macio_ide_init_drives(macio_ide, hd);
 294
 295    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 296                                                        "ide[1]"));
 297    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 298
 299    /* MacIO CUDA/ADB */
 300    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 301    adb_bus = qdev_get_child_bus(dev, "adb.0");
 302    dev = qdev_new(TYPE_ADB_KEYBOARD);
 303    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 304    dev = qdev_new(TYPE_ADB_MOUSE);
 305    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 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_new(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));
 322    s = SYS_BUS_DEVICE(dev);
 323    sysbus_realize_and_unref(s, &error_fatal);
 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 (machine->kernel_cmdline) {
 334        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 335        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 336                         machine->kernel_cmdline);
 337    } else {
 338        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 339    }
 340    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 341    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 342    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 343
 344    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 345    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 346    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 347
 348    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 349    if (kvm_enabled()) {
 350        uint8_t *hypercall;
 351
 352        hypercall = g_malloc(16);
 353        kvmppc_get_hypercall(env, hypercall, 16);
 354        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 355        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 356    }
 357    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 358    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 359    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 360    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 361
 362    /* MacOS NDRV VGA driver */
 363    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 364    if (filename) {
 365        gchar *ndrv_file;
 366        gsize ndrv_size;
 367
 368        if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 369            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 370        }
 371        g_free(filename);
 372    }
 373
 374    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 375}
 376
 377/*
 378 * Implementation of an interface to adjust firmware path
 379 * for the bootindex property handling.
 380 */
 381static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 382                                  DeviceState *dev)
 383{
 384    PCIDevice *pci;
 385    MACIOIDEState *macio_ide;
 386
 387    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 388        pci = PCI_DEVICE(dev);
 389        return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 390    }
 391
 392    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 393        macio_ide = MACIO_IDE(dev);
 394        return g_strdup_printf("ata-3@%x", macio_ide->addr);
 395    }
 396
 397    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 398        return g_strdup("disk");
 399    }
 400
 401    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 402        return g_strdup("cdrom");
 403    }
 404
 405    if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 406        return g_strdup("disk");
 407    }
 408
 409    return NULL;
 410}
 411
 412static int heathrow_kvm_type(MachineState *machine, const char *arg)
 413{
 414    /* Always force PR KVM */
 415    return 2;
 416}
 417
 418static void heathrow_class_init(ObjectClass *oc, void *data)
 419{
 420    MachineClass *mc = MACHINE_CLASS(oc);
 421    FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 422
 423    mc->desc = "Heathrow based PowerMAC";
 424    mc->init = ppc_heathrow_init;
 425    mc->block_default_type = IF_IDE;
 426    mc->max_cpus = MAX_CPUS;
 427#ifndef TARGET_PPC64
 428    mc->is_default = true;
 429#endif
 430    /* TOFIX "cad" when Mac floppy is implemented */
 431    mc->default_boot_order = "cd";
 432    mc->kvm_type = heathrow_kvm_type;
 433    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 434    mc->default_display = "std";
 435    mc->ignore_boot_device_suffixes = true;
 436    mc->default_ram_id = "ppc_heathrow.ram";
 437    fwc->get_dev_path = heathrow_fw_dev_path;
 438}
 439
 440static const TypeInfo ppc_heathrow_machine_info = {
 441    .name          = MACHINE_TYPE_NAME("g3beige"),
 442    .parent        = TYPE_MACHINE,
 443    .class_init    = heathrow_class_init,
 444    .interfaces = (InterfaceInfo[]) {
 445        { TYPE_FW_PATH_PROVIDER },
 446        { }
 447    },
 448};
 449
 450static void ppc_heathrow_register_types(void)
 451{
 452    type_register_static(&ppc_heathrow_machine_info);
 453}
 454
 455type_init(ppc_heathrow_register_types);
 456