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#include "qemu/osdep.h"
  27#include "qemu/units.h"
  28#include "qapi/error.h"
  29#include "hw/hw.h"
  30#include "hw/ppc/ppc.h"
  31#include "mac.h"
  32#include "hw/input/adb.h"
  33#include "hw/timer/m48t59.h"
  34#include "sysemu/sysemu.h"
  35#include "net/net.h"
  36#include "hw/isa/isa.h"
  37#include "hw/pci/pci.h"
  38#include "hw/pci/pci_host.h"
  39#include "hw/boards.h"
  40#include "hw/nvram/fw_cfg.h"
  41#include "hw/char/escc.h"
  42#include "hw/misc/macio/macio.h"
  43#include "hw/ide.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 "kvm_ppc.h"
  50#include "exec/address-spaces.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
  62static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  63                            Error **errp)
  64{
  65    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  66}
  67
  68static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  69{
  70    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  71}
  72
  73static void ppc_heathrow_reset(void *opaque)
  74{
  75    PowerPCCPU *cpu = opaque;
  76
  77    cpu_reset(CPU(cpu));
  78}
  79
  80static void ppc_heathrow_init(MachineState *machine)
  81{
  82    ram_addr_t ram_size = machine->ram_size;
  83    const char *kernel_filename = machine->kernel_filename;
  84    const char *kernel_cmdline = machine->kernel_cmdline;
  85    const char *initrd_filename = machine->initrd_filename;
  86    const char *boot_device = machine->boot_order;
  87    MemoryRegion *sysmem = get_system_memory();
  88    PowerPCCPU *cpu = NULL;
  89    CPUPPCState *env = NULL;
  90    char *filename;
  91    int linux_boot, i;
  92    MemoryRegion *ram = g_new(MemoryRegion, 1);
  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    OldWorldMacIOState *macio;
  98    MACIOIDEState *macio_ide;
  99    SysBusDevice *s;
 100    DeviceState *dev, *pic_dev;
 101    BusState *adb_bus;
 102    int bios_size, ndrv_size;
 103    uint8_t *ndrv_file;
 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    linux_boot = (kernel_filename != NULL);
 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_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 129                                         ram_size);
 130    memory_region_add_subregion(sysmem, 0, ram);
 131
 132    /* allocate and load BIOS */
 133    memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 134                           &error_fatal);
 135
 136    if (bios_name == NULL)
 137        bios_name = PROM_FILENAME;
 138    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 139    memory_region_set_readonly(bios, true);
 140    memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 141
 142    /* Load OpenBIOS (ELF) */
 143    if (filename) {
 144        bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 145                             1, PPC_ELF_MACHINE, 0, 0);
 146        g_free(filename);
 147    } else {
 148        bios_size = -1;
 149    }
 150    if (bios_size < 0 || bios_size > BIOS_SIZE) {
 151        error_report("could not load PowerPC bios '%s'", bios_name);
 152        exit(1);
 153    }
 154
 155    if (linux_boot) {
 156        uint64_t lowaddr = 0;
 157        int bswap_needed;
 158
 159#ifdef BSWAP_NEEDED
 160        bswap_needed = 1;
 161#else
 162        bswap_needed = 0;
 163#endif
 164        kernel_base = KERNEL_LOAD_ADDR;
 165        kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 166                               NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 167                               0, 0);
 168        if (kernel_size < 0)
 169            kernel_size = load_aout(kernel_filename, kernel_base,
 170                                    ram_size - kernel_base, bswap_needed,
 171                                    TARGET_PAGE_SIZE);
 172        if (kernel_size < 0)
 173            kernel_size = load_image_targphys(kernel_filename,
 174                                              kernel_base,
 175                                              ram_size - kernel_base);
 176        if (kernel_size < 0) {
 177            error_report("could not load kernel '%s'", kernel_filename);
 178            exit(1);
 179        }
 180        /* load initrd */
 181        if (initrd_filename) {
 182            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 183            initrd_size = load_image_targphys(initrd_filename, initrd_base,
 184                                              ram_size - initrd_base);
 185            if (initrd_size < 0) {
 186                error_report("could not load initial ram disk '%s'",
 187                             initrd_filename);
 188                exit(1);
 189            }
 190            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 191        } else {
 192            initrd_base = 0;
 193            initrd_size = 0;
 194            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 195        }
 196        ppc_boot_device = 'm';
 197    } else {
 198        kernel_base = 0;
 199        kernel_size = 0;
 200        initrd_base = 0;
 201        initrd_size = 0;
 202        ppc_boot_device = '\0';
 203        for (i = 0; boot_device[i] != '\0'; i++) {
 204            /* TOFIX: for now, the second IDE channel is not properly
 205             *        used by OHW. The Mac floppy disk are not emulated.
 206             *        For now, OHW cannot boot from the network.
 207             */
 208#if 0
 209            if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 210                ppc_boot_device = boot_device[i];
 211                break;
 212            }
 213#else
 214            if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 215                ppc_boot_device = boot_device[i];
 216                break;
 217            }
 218#endif
 219        }
 220        if (ppc_boot_device == '\0') {
 221            error_report("No valid boot device for G3 Beige machine");
 222            exit(1);
 223        }
 224    }
 225
 226    /* XXX: we register only 1 output pin for heathrow PIC */
 227    pic_dev = qdev_create(NULL, TYPE_HEATHROW);
 228    qdev_init_nofail(pic_dev);
 229
 230    /* Connect the heathrow PIC outputs to the 6xx bus */
 231    for (i = 0; i < smp_cpus; i++) {
 232        switch (PPC_INPUT(env)) {
 233        case PPC_FLAGS_INPUT_6xx:
 234            qdev_connect_gpio_out(pic_dev, 0,
 235                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 236            break;
 237        default:
 238            error_report("Bus model not supported on OldWorld Mac machine");
 239            exit(1);
 240        }
 241    }
 242
 243    /* Timebase Frequency */
 244    if (kvm_enabled()) {
 245        tbfreq = kvmppc_get_tbfreq();
 246    } else {
 247        tbfreq = TBFREQ;
 248    }
 249
 250    /* init basic PC hardware */
 251    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 252        error_report("Only 6xx bus is supported on heathrow machine");
 253        exit(1);
 254    }
 255
 256    /* Grackle PCI host bridge */
 257    dev = qdev_create(NULL, TYPE_GRACKLE_PCI_HOST_BRIDGE);
 258    qdev_prop_set_uint32(dev, "ofw-addr", 0x80000000);
 259    object_property_set_link(OBJECT(dev), OBJECT(pic_dev), "pic",
 260                             &error_abort);
 261    qdev_init_nofail(dev);
 262    s = SYS_BUS_DEVICE(dev);
 263    sysbus_mmio_map(s, 0, GRACKLE_BASE);
 264    sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 265    /* PCI hole */
 266    memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 267                                sysbus_mmio_get_region(s, 2));
 268    /* Register 2 MB of ISA IO space */
 269    memory_region_add_subregion(get_system_memory(), 0xfe000000,
 270                                sysbus_mmio_get_region(s, 3));
 271
 272    pci_bus = PCI_HOST_BRIDGE(dev)->bus;
 273
 274    pci_vga_init(pci_bus);
 275
 276    for (i = 0; i < nb_nics; i++) {
 277        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 278    }
 279
 280    ide_drive_get(hd, ARRAY_SIZE(hd));
 281
 282    /* MacIO */
 283    macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO));
 284    dev = DEVICE(macio);
 285    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 286    object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic",
 287                             &error_abort);
 288    qdev_init_nofail(dev);
 289
 290    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 291                                                        "ide[0]"));
 292    macio_ide_init_drives(macio_ide, hd);
 293
 294    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 295                                                        "ide[1]"));
 296    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 297
 298    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 299    adb_bus = qdev_get_child_bus(dev, "adb.0");
 300    dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 301    qdev_init_nofail(dev);
 302    dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 303    qdev_init_nofail(dev);
 304
 305    if (machine_usb(machine)) {
 306        pci_create_simple(pci_bus, -1, "pci-ohci");
 307    }
 308
 309    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 310        graphic_depth = 15;
 311
 312    /* No PCI init: the BIOS will do it */
 313
 314    dev = qdev_create(NULL, TYPE_FW_CFG_MEM);
 315    fw_cfg = FW_CFG(dev);
 316    qdev_prop_set_uint32(dev, "data_width", 1);
 317    qdev_prop_set_bit(dev, "dma_enabled", false);
 318    object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 319                              OBJECT(fw_cfg), NULL);
 320    qdev_init_nofail(dev);
 321    s = SYS_BUS_DEVICE(dev);
 322    sysbus_mmio_map(s, 0, CFG_ADDR);
 323    sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 324
 325    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 326    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 327    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 328    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 329    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 330    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 331    if (kernel_cmdline) {
 332        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 333        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 334    } else {
 335        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 336    }
 337    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 338    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 339    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 340
 341    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 342    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 343    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 344
 345    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 346    if (kvm_enabled()) {
 347#ifdef CONFIG_KVM
 348        uint8_t *hypercall;
 349
 350        hypercall = g_malloc(16);
 351        kvmppc_get_hypercall(env, hypercall, 16);
 352        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 353        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 354#endif
 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        ndrv_size = get_image_size(filename);
 365        if (ndrv_size != -1) {
 366            ndrv_file = g_malloc(ndrv_size);
 367            ndrv_size = load_image(filename, ndrv_file);
 368
 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    IDEBus *ide_bus;
 386    IDEState *ide_s;
 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-drive")) {
 400        ide_bus = IDE_BUS(qdev_get_parent_bus(dev));
 401        ide_s = idebus_active_if(ide_bus);
 402
 403        if (ide_s->drive_kind == IDE_CD) {
 404            return g_strdup("cdrom");
 405        }
 406
 407        return g_strdup("hd");
 408    }
 409
 410    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 411        return g_strdup("hd");
 412    }
 413
 414    if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 415        return g_strdup("cdrom");
 416    }
 417
 418    if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 419        return g_strdup("disk");
 420    }
 421
 422    return NULL;
 423}
 424
 425static int heathrow_kvm_type(const char *arg)
 426{
 427    /* Always force PR KVM */
 428    return 2;
 429}
 430
 431static void heathrow_class_init(ObjectClass *oc, void *data)
 432{
 433    MachineClass *mc = MACHINE_CLASS(oc);
 434    FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 435
 436    mc->desc = "Heathrow based PowerMAC";
 437    mc->init = ppc_heathrow_init;
 438    mc->block_default_type = IF_IDE;
 439    mc->max_cpus = MAX_CPUS;
 440#ifndef TARGET_PPC64
 441    mc->is_default = 1;
 442#endif
 443    /* TOFIX "cad" when Mac floppy is implemented */
 444    mc->default_boot_order = "cd";
 445    mc->kvm_type = heathrow_kvm_type;
 446    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 447    mc->default_display = "std";
 448    mc->ignore_boot_device_suffixes = true;
 449    fwc->get_dev_path = heathrow_fw_dev_path;
 450}
 451
 452static const TypeInfo ppc_heathrow_machine_info = {
 453    .name          = MACHINE_TYPE_NAME("g3beige"),
 454    .parent        = TYPE_MACHINE,
 455    .class_init    = heathrow_class_init,
 456    .interfaces = (InterfaceInfo[]) {
 457        { TYPE_FW_PATH_PROVIDER },
 458        { }
 459    },
 460};
 461
 462static void ppc_heathrow_register_types(void)
 463{
 464    type_register_static(&ppc_heathrow_machine_info);
 465}
 466
 467type_init(ppc_heathrow_register_types);
 468