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 "qapi/error.h"
  28#include "hw/hw.h"
  29#include "hw/ppc/ppc.h"
  30#include "mac.h"
  31#include "hw/input/adb.h"
  32#include "hw/timer/m48t59.h"
  33#include "sysemu/sysemu.h"
  34#include "net/net.h"
  35#include "hw/isa/isa.h"
  36#include "hw/pci/pci.h"
  37#include "hw/boards.h"
  38#include "hw/nvram/fw_cfg.h"
  39#include "hw/char/escc.h"
  40#include "hw/misc/macio/macio.h"
  41#include "hw/ide.h"
  42#include "hw/loader.h"
  43#include "elf.h"
  44#include "qemu/error-report.h"
  45#include "sysemu/kvm.h"
  46#include "kvm_ppc.h"
  47#include "exec/address-spaces.h"
  48#include "qemu/cutils.h"
  49
  50#define MAX_IDE_BUS 2
  51#define CFG_ADDR 0xf0000510
  52#define TBFREQ 16600000UL
  53#define CLOCKFREQ 266000000UL
  54#define BUSFREQ 66000000UL
  55
  56#define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  57
  58static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  59                            Error **errp)
  60{
  61    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  62}
  63
  64static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  65{
  66    return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  67}
  68
  69static void ppc_heathrow_reset(void *opaque)
  70{
  71    PowerPCCPU *cpu = opaque;
  72
  73    cpu_reset(CPU(cpu));
  74}
  75
  76static void ppc_heathrow_init(MachineState *machine)
  77{
  78    ram_addr_t ram_size = machine->ram_size;
  79    const char *kernel_filename = machine->kernel_filename;
  80    const char *kernel_cmdline = machine->kernel_cmdline;
  81    const char *initrd_filename = machine->initrd_filename;
  82    const char *boot_device = machine->boot_order;
  83    MemoryRegion *sysmem = get_system_memory();
  84    PowerPCCPU *cpu = NULL;
  85    CPUPPCState *env = NULL;
  86    char *filename;
  87    qemu_irq *pic, **heathrow_irqs;
  88    int linux_boot, i;
  89    MemoryRegion *ram = g_new(MemoryRegion, 1);
  90    MemoryRegion *bios = g_new(MemoryRegion, 1);
  91    MemoryRegion *isa = 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    OldWorldMacIOState *macio;
  96    MACIOIDEState *macio_ide;
  97    DeviceState *dev, *pic_dev;
  98    BusState *adb_bus;
  99    int bios_size, ndrv_size;
 100    uint8_t *ndrv_file;
 101    uint16_t ppc_boot_device;
 102    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 103    void *fw_cfg;
 104    uint64_t tbfreq;
 105
 106    linux_boot = (kernel_filename != NULL);
 107
 108    /* init CPUs */
 109    for (i = 0; i < smp_cpus; i++) {
 110        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 111        env = &cpu->env;
 112
 113        /* Set time-base frequency to 16.6 Mhz */
 114        cpu_ppc_tb_init(env,  TBFREQ);
 115        qemu_register_reset(ppc_heathrow_reset, cpu);
 116    }
 117
 118    /* allocate RAM */
 119    if (ram_size > (2047 << 20)) {
 120        fprintf(stderr,
 121                "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 122                ((unsigned int)ram_size / (1 << 20)));
 123        exit(1);
 124    }
 125
 126    memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 127                                         ram_size);
 128    memory_region_add_subregion(sysmem, 0, ram);
 129
 130    /* allocate and load BIOS */
 131    memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 132                           &error_fatal);
 133
 134    if (bios_name == NULL)
 135        bios_name = PROM_FILENAME;
 136    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 137    memory_region_set_readonly(bios, true);
 138    memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 139
 140    /* Load OpenBIOS (ELF) */
 141    if (filename) {
 142        bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 143                             1, PPC_ELF_MACHINE, 0, 0);
 144        g_free(filename);
 145    } else {
 146        bios_size = -1;
 147    }
 148    if (bios_size < 0 || bios_size > BIOS_SIZE) {
 149        error_report("could not load PowerPC bios '%s'", bios_name);
 150        exit(1);
 151    }
 152
 153    if (linux_boot) {
 154        uint64_t lowaddr = 0;
 155        int bswap_needed;
 156
 157#ifdef BSWAP_NEEDED
 158        bswap_needed = 1;
 159#else
 160        bswap_needed = 0;
 161#endif
 162        kernel_base = KERNEL_LOAD_ADDR;
 163        kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 164                               NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 165                               0, 0);
 166        if (kernel_size < 0)
 167            kernel_size = load_aout(kernel_filename, kernel_base,
 168                                    ram_size - kernel_base, bswap_needed,
 169                                    TARGET_PAGE_SIZE);
 170        if (kernel_size < 0)
 171            kernel_size = load_image_targphys(kernel_filename,
 172                                              kernel_base,
 173                                              ram_size - kernel_base);
 174        if (kernel_size < 0) {
 175            error_report("could not load kernel '%s'", kernel_filename);
 176            exit(1);
 177        }
 178        /* load initrd */
 179        if (initrd_filename) {
 180            initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 181            initrd_size = load_image_targphys(initrd_filename, initrd_base,
 182                                              ram_size - initrd_base);
 183            if (initrd_size < 0) {
 184                error_report("could not load initial ram disk '%s'",
 185                             initrd_filename);
 186                exit(1);
 187            }
 188            cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 189        } else {
 190            initrd_base = 0;
 191            initrd_size = 0;
 192            cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 193        }
 194        ppc_boot_device = 'm';
 195    } else {
 196        kernel_base = 0;
 197        kernel_size = 0;
 198        initrd_base = 0;
 199        initrd_size = 0;
 200        ppc_boot_device = '\0';
 201        for (i = 0; boot_device[i] != '\0'; i++) {
 202            /* TOFIX: for now, the second IDE channel is not properly
 203             *        used by OHW. The Mac floppy disk are not emulated.
 204             *        For now, OHW cannot boot from the network.
 205             */
 206#if 0
 207            if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 208                ppc_boot_device = boot_device[i];
 209                break;
 210            }
 211#else
 212            if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 213                ppc_boot_device = boot_device[i];
 214                break;
 215            }
 216#endif
 217        }
 218        if (ppc_boot_device == '\0') {
 219            error_report("No valid boot device for G3 Beige machine");
 220            exit(1);
 221        }
 222    }
 223
 224    /* Register 2 MB of ISA IO space */
 225    memory_region_init_alias(isa, NULL, "isa_mmio",
 226                             get_system_io(), 0, 0x00200000);
 227    memory_region_add_subregion(sysmem, 0xfe000000, isa);
 228
 229    /* XXX: we register only 1 output pin for heathrow PIC */
 230    heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 231    heathrow_irqs[0] =
 232        g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 233    /* Connect the heathrow PIC outputs to the 6xx bus */
 234    for (i = 0; i < smp_cpus; i++) {
 235        switch (PPC_INPUT(env)) {
 236        case PPC_FLAGS_INPUT_6xx:
 237            heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 238            heathrow_irqs[i][0] =
 239                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 240            break;
 241        default:
 242            error_report("Bus model not supported on OldWorld Mac machine");
 243            exit(1);
 244        }
 245    }
 246
 247    /* Timebase Frequency */
 248    if (kvm_enabled()) {
 249        tbfreq = kvmppc_get_tbfreq();
 250    } else {
 251        tbfreq = TBFREQ;
 252    }
 253
 254    /* init basic PC hardware */
 255    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 256        error_report("Only 6xx bus is supported on heathrow machine");
 257        exit(1);
 258    }
 259    pic_dev = heathrow_pic_init(1, heathrow_irqs, &pic);
 260    pci_bus = pci_grackle_init(0xfec00000, pic,
 261                               get_system_memory(),
 262                               get_system_io());
 263    pci_vga_init(pci_bus);
 264
 265    for (i = 0; i < nb_nics; i++) {
 266        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 267    }
 268
 269    ide_drive_get(hd, ARRAY_SIZE(hd));
 270
 271    /* MacIO */
 272    macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO));
 273    dev = DEVICE(macio);
 274    qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 275    qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */
 276    qdev_connect_gpio_out(dev, 2, pic[0x0F]); /* ESCC-A */
 277    qdev_connect_gpio_out(dev, 3, pic[0x0D]); /* IDE-0 */
 278    qdev_connect_gpio_out(dev, 4, pic[0x02]); /* IDE-0 DMA */
 279    qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */
 280    qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */
 281    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 282    object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic",
 283                             &error_abort);
 284    qdev_init_nofail(dev);
 285
 286    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 287                                                        "ide[0]"));
 288    macio_ide_init_drives(macio_ide, hd);
 289
 290    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 291                                                        "ide[1]"));
 292    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 293
 294    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 295    adb_bus = qdev_get_child_bus(dev, "adb.0");
 296    dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 297    qdev_init_nofail(dev);
 298    dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 299    qdev_init_nofail(dev);
 300
 301    if (machine_usb(machine)) {
 302        pci_create_simple(pci_bus, -1, "pci-ohci");
 303    }
 304
 305    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 306        graphic_depth = 15;
 307
 308    /* No PCI init: the BIOS will do it */
 309
 310    fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 311    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 312    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 313    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 314    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 315    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 316    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 317    if (kernel_cmdline) {
 318        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 319        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 320    } else {
 321        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 322    }
 323    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 324    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 325    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 326
 327    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 328    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 329    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 330
 331    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 332    if (kvm_enabled()) {
 333#ifdef CONFIG_KVM
 334        uint8_t *hypercall;
 335
 336        hypercall = g_malloc(16);
 337        kvmppc_get_hypercall(env, hypercall, 16);
 338        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 339        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 340#endif
 341    }
 342    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 343    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 344    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 345    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 346
 347    /* MacOS NDRV VGA driver */
 348    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 349    if (filename) {
 350        ndrv_size = get_image_size(filename);
 351        if (ndrv_size != -1) {
 352            ndrv_file = g_malloc(ndrv_size);
 353            ndrv_size = load_image(filename, ndrv_file);
 354
 355            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 356        }
 357        g_free(filename);
 358    }
 359
 360    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 361}
 362
 363static int heathrow_kvm_type(const char *arg)
 364{
 365    /* Always force PR KVM */
 366    return 2;
 367}
 368
 369static void heathrow_class_init(ObjectClass *oc, void *data)
 370{
 371    MachineClass *mc = MACHINE_CLASS(oc);
 372
 373    mc->desc = "Heathrow based PowerMAC";
 374    mc->init = ppc_heathrow_init;
 375    mc->block_default_type = IF_IDE;
 376    mc->max_cpus = MAX_CPUS;
 377#ifndef TARGET_PPC64
 378    mc->is_default = 1;
 379#endif
 380    /* TOFIX "cad" when Mac floppy is implemented */
 381    mc->default_boot_order = "cd";
 382    mc->kvm_type = heathrow_kvm_type;
 383    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 384}
 385
 386static const TypeInfo ppc_heathrow_machine_info = {
 387    .name          = MACHINE_TYPE_NAME("g3beige"),
 388    .parent        = TYPE_MACHINE,
 389    .class_init    = heathrow_class_init
 390};
 391
 392static void ppc_heathrow_register_types(void)
 393{
 394    type_register_static(&ppc_heathrow_machine_info);
 395}
 396
 397type_init(ppc_heathrow_register_types);
 398