qemu/hw/ppc/mac_oldworld.c
<<
>>
Prefs
   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/boards.h"
  42#include "hw/nvram/fw_cfg.h"
  43#include "hw/char/escc.h"
  44#include "hw/misc/macio/macio.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 "sysemu/reset.h"
  51#include "kvm_ppc.h"
  52#include "exec/address-spaces.h"
  53
  54#define MAX_IDE_BUS 2
  55#define CFG_ADDR 0xf0000510
  56#define TBFREQ 16600000UL
  57#define CLOCKFREQ 266000000UL
  58#define BUSFREQ 66000000UL
  59
  60#define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  61
  62#define GRACKLE_BASE 0xfec00000
  63#define PROM_BASE 0xffc00000
  64#define PROM_SIZE (4 * MiB)
  65
  66static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  67                            Error **errp)
  68{
  69    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  70}
  71
  72static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  73{
  74    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  75}
  76
  77static void ppc_heathrow_reset(void *opaque)
  78{
  79    PowerPCCPU *cpu = opaque;
  80
  81    cpu_reset(CPU(cpu));
  82}
  83
  84static void ppc_heathrow_init(MachineState *machine)
  85{
  86    ram_addr_t ram_size = machine->ram_size;
  87    const char *bios_name = machine->firmware ?: PROM_FILENAME;
  88    const char *boot_device = machine->boot_order;
  89    PowerPCCPU *cpu = NULL;
  90    CPUPPCState *env = NULL;
  91    char *filename;
  92    int i;
  93    MemoryRegion *bios = g_new(MemoryRegion, 1);
  94    uint32_t kernel_base, initrd_base, cmdline_base = 0;
  95    int32_t kernel_size, initrd_size;
  96    PCIBus *pci_bus;
  97    PCIDevice *macio;
  98    MACIOIDEState *macio_ide;
  99    ESCCState *escc;
 100    SysBusDevice *s;
 101    DeviceState *dev, *pic_dev, *grackle_dev;
 102    BusState *adb_bus;
 103    uint64_t bios_addr;
 104    int bios_size;
 105    unsigned int smp_cpus = machine->smp.cpus;
 106    uint16_t ppc_boot_device;
 107    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 108    void *fw_cfg;
 109    uint64_t tbfreq;
 110
 111    /* init CPUs */
 112    for (i = 0; i < smp_cpus; i++) {
 113        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 114        env = &cpu->env;
 115
 116        /* Set time-base frequency to 16.6 Mhz */
 117        cpu_ppc_tb_init(env,  TBFREQ);
 118        qemu_register_reset(ppc_heathrow_reset, cpu);
 119    }
 120
 121    /* allocate RAM */
 122    if (ram_size > 2047 * MiB) {
 123        error_report("Too much memory for this machine: %" PRId64 " MB, "
 124                     "maximum 2047 MB", ram_size / MiB);
 125        exit(1);
 126    }
 127
 128    memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 129
 130    /* allocate and load firmware ROM */
 131    memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
 132                           &error_fatal);
 133    memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
 134
 135    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 136    if (filename) {
 137        /* Load OpenBIOS (ELF) */
 138        bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 139                             NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 140        /* Unfortunately, load_elf sign-extends reading elf32 */
 141        bios_addr = (uint32_t)bios_addr;
 142
 143        if (bios_size <= 0) {
 144            /* or if could not load ELF try loading a binary ROM image */
 145            bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 146            bios_addr = PROM_BASE;
 147        }
 148        g_free(filename);
 149    } else {
 150        bios_size = -1;
 151    }
 152    if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 153        error_report("could not load PowerPC bios '%s'", bios_name);
 154        exit(1);
 155    }
 156
 157    if (machine->kernel_filename) {
 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(machine->kernel_filename, NULL,
 167                               translate_kernel_address, NULL, NULL, NULL,
 168                               NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 169        if (kernel_size < 0)
 170            kernel_size = load_aout(machine->kernel_filename, kernel_base,
 171                                    ram_size - kernel_base, bswap_needed,
 172                                    TARGET_PAGE_SIZE);
 173        if (kernel_size < 0)
 174            kernel_size = load_image_targphys(machine->kernel_filename,
 175                                              kernel_base,
 176                                              ram_size - kernel_base);
 177        if (kernel_size < 0) {
 178            error_report("could not load kernel '%s'",
 179                         machine->kernel_filename);
 180            exit(1);
 181        }
 182        /* load initrd */
 183        if (machine->initrd_filename) {
 184            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 185                                            KERNEL_GAP);
 186            initrd_size = load_image_targphys(machine->initrd_filename,
 187                                              initrd_base,
 188                                              ram_size - initrd_base);
 189            if (initrd_size < 0) {
 190                error_report("could not load initial ram disk '%s'",
 191                             machine->initrd_filename);
 192                exit(1);
 193            }
 194            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 195        } else {
 196            initrd_base = 0;
 197            initrd_size = 0;
 198            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 199        }
 200        ppc_boot_device = 'm';
 201    } else {
 202        kernel_base = 0;
 203        kernel_size = 0;
 204        initrd_base = 0;
 205        initrd_size = 0;
 206        ppc_boot_device = '\0';
 207        for (i = 0; boot_device[i] != '\0'; i++) {
 208            /* TOFIX: for now, the second IDE channel is not properly
 209             *        used by OHW. The Mac floppy disk are not emulated.
 210             *        For now, OHW cannot boot from the network.
 211             */
 212#if 0
 213            if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 214                ppc_boot_device = boot_device[i];
 215                break;
 216            }
 217#else
 218            if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 219                ppc_boot_device = boot_device[i];
 220                break;
 221            }
 222#endif
 223        }
 224        if (ppc_boot_device == '\0') {
 225            error_report("No valid boot device for G3 Beige machine");
 226            exit(1);
 227        }
 228    }
 229
 230    /* Timebase Frequency */
 231    if (kvm_enabled()) {
 232        tbfreq = kvmppc_get_tbfreq();
 233    } else {
 234        tbfreq = TBFREQ;
 235    }
 236
 237    /* Grackle PCI host bridge */
 238    grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 239    qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 240    s = SYS_BUS_DEVICE(grackle_dev);
 241    sysbus_realize_and_unref(s, &error_fatal);
 242
 243    sysbus_mmio_map(s, 0, GRACKLE_BASE);
 244    sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 245    /* PCI hole */
 246    memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 247                                sysbus_mmio_get_region(s, 2));
 248    /* Register 2 MB of ISA IO space */
 249    memory_region_add_subregion(get_system_memory(), 0xfe000000,
 250                                sysbus_mmio_get_region(s, 3));
 251
 252    pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 253
 254    /* MacIO */
 255    macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO);
 256    dev = DEVICE(macio);
 257    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 258
 259    escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc"));
 260    qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0));
 261    qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1));
 262
 263    pci_realize_and_unref(macio, pci_bus, &error_fatal);
 264
 265    pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic"));
 266    for (i = 0; i < 4; i++) {
 267        qdev_connect_gpio_out(grackle_dev, i,
 268                              qdev_get_gpio_in(pic_dev, 0x15 + i));
 269    }
 270
 271    /* Connect the heathrow PIC outputs to the 6xx bus */
 272    for (i = 0; i < smp_cpus; i++) {
 273        switch (PPC_INPUT(env)) {
 274        case PPC_FLAGS_INPUT_6xx:
 275            /* XXX: we register only 1 output pin for heathrow PIC */
 276            qdev_connect_gpio_out(pic_dev, 0,
 277                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 278            break;
 279        default:
 280            error_report("Bus model not supported on OldWorld Mac machine");
 281            exit(1);
 282        }
 283    }
 284
 285    pci_vga_init(pci_bus);
 286
 287    for (i = 0; i < nb_nics; i++) {
 288        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 289    }
 290
 291    /* MacIO IDE */
 292    ide_drive_get(hd, ARRAY_SIZE(hd));
 293    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 294                                                        "ide[0]"));
 295    macio_ide_init_drives(macio_ide, hd);
 296
 297    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 298                                                        "ide[1]"));
 299    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 300
 301    /* MacIO CUDA/ADB */
 302    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 303    adb_bus = qdev_get_child_bus(dev, "adb.0");
 304    dev = qdev_new(TYPE_ADB_KEYBOARD);
 305    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 306    dev = qdev_new(TYPE_ADB_MOUSE);
 307    qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 308
 309    if (machine_usb(machine)) {
 310        pci_create_simple(pci_bus, -1, "pci-ohci");
 311    }
 312
 313    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 314        graphic_depth = 15;
 315
 316    /* No PCI init: the BIOS will do it */
 317
 318    dev = qdev_new(TYPE_FW_CFG_MEM);
 319    fw_cfg = FW_CFG(dev);
 320    qdev_prop_set_uint32(dev, "data_width", 1);
 321    qdev_prop_set_bit(dev, "dma_enabled", false);
 322    object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 323                              OBJECT(fw_cfg));
 324    s = SYS_BUS_DEVICE(dev);
 325    sysbus_realize_and_unref(s, &error_fatal);
 326    sysbus_mmio_map(s, 0, CFG_ADDR);
 327    sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 328
 329    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 330    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 331    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 332    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 333    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 334    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 335    if (machine->kernel_cmdline) {
 336        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 337        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 338                         machine->kernel_cmdline);
 339    } else {
 340        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 341    }
 342    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 343    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 344    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 345
 346    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 347    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 348    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 349
 350    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 351    if (kvm_enabled()) {
 352        uint8_t *hypercall;
 353
 354        hypercall = g_malloc(16);
 355        kvmppc_get_hypercall(env, hypercall, 16);
 356        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 357        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 358    }
 359    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 360    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 361    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 362    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 363
 364    /* MacOS NDRV VGA driver */
 365    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 366    if (filename) {
 367        gchar *ndrv_file;
 368        gsize ndrv_size;
 369
 370        if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 371            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 372        }
 373        g_free(filename);
 374    }
 375
 376    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 377}
 378
 379/*
 380 * Implementation of an interface to adjust firmware path
 381 * for the bootindex property handling.
 382 */
 383static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 384                                  DeviceState *dev)
 385{
 386    PCIDevice *pci;
 387    MACIOIDEState *macio_ide;
 388
 389    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 390        pci = PCI_DEVICE(dev);
 391        return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 392    }
 393
 394    if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 395        macio_ide = MACIO_IDE(dev);
 396        return g_strdup_printf("ata-3@%x", macio_ide->addr);
 397    }
 398
 399    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 400        return g_strdup("disk");
 401    }
 402
 403    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 404        return g_strdup("cdrom");
 405    }
 406
 407    if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 408        return g_strdup("disk");
 409    }
 410
 411    return NULL;
 412}
 413
 414static int heathrow_kvm_type(MachineState *machine, const char *arg)
 415{
 416    /* Always force PR KVM */
 417    return 2;
 418}
 419
 420static void heathrow_class_init(ObjectClass *oc, void *data)
 421{
 422    MachineClass *mc = MACHINE_CLASS(oc);
 423    FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 424
 425    mc->desc = "Heathrow based PowerMAC";
 426    mc->init = ppc_heathrow_init;
 427    mc->block_default_type = IF_IDE;
 428    mc->max_cpus = MAX_CPUS;
 429#ifndef TARGET_PPC64
 430    mc->is_default = true;
 431#endif
 432    /* TOFIX "cad" when Mac floppy is implemented */
 433    mc->default_boot_order = "cd";
 434    mc->kvm_type = heathrow_kvm_type;
 435    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 436    mc->default_display = "std";
 437    mc->ignore_boot_device_suffixes = true;
 438    mc->default_ram_id = "ppc_heathrow.ram";
 439    fwc->get_dev_path = heathrow_fw_dev_path;
 440}
 441
 442static const TypeInfo ppc_heathrow_machine_info = {
 443    .name          = MACHINE_TYPE_NAME("g3beige"),
 444    .parent        = TYPE_MACHINE,
 445    .class_init    = heathrow_class_init,
 446    .interfaces = (InterfaceInfo[]) {
 447        { TYPE_FW_PATH_PROVIDER },
 448        { }
 449    },
 450};
 451
 452static void ppc_heathrow_register_types(void)
 453{
 454    type_register_static(&ppc_heathrow_machine_info);
 455}
 456
 457type_init(ppc_heathrow_register_types);
 458