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/ide.h"
  41#include "hw/loader.h"
  42#include "elf.h"
  43#include "qemu/error-report.h"
  44#include "sysemu/kvm.h"
  45#include "kvm_ppc.h"
  46#include "sysemu/block-backend.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    PCIDevice *macio;
  96    MACIOIDEState *macio_ide;
  97    DeviceState *dev;
  98    BusState *adb_bus;
  99    int bios_size, ndrv_size;
 100    uint8_t *ndrv_file;
 101    MemoryRegion *pic_mem;
 102    MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1);
 103    uint16_t ppc_boot_device;
 104    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 105    void *fw_cfg;
 106    uint64_t tbfreq;
 107
 108    linux_boot = (kernel_filename != NULL);
 109
 110    /* init CPUs */
 111    for (i = 0; i < smp_cpus; i++) {
 112        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 113        env = &cpu->env;
 114
 115        /* Set time-base frequency to 16.6 Mhz */
 116        cpu_ppc_tb_init(env,  TBFREQ);
 117        qemu_register_reset(ppc_heathrow_reset, cpu);
 118    }
 119
 120    /* allocate RAM */
 121    if (ram_size > (2047 << 20)) {
 122        fprintf(stderr,
 123                "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 124                ((unsigned int)ram_size / (1 << 20)));
 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            fprintf(stderr, "No valid boot device for G3 Beige machine\n");
 222            exit(1);
 223        }
 224    }
 225
 226    /* Register 2 MB of ISA IO space */
 227    memory_region_init_alias(isa, NULL, "isa_mmio",
 228                             get_system_io(), 0, 0x00200000);
 229    memory_region_add_subregion(sysmem, 0xfe000000, isa);
 230
 231    /* XXX: we register only 1 output pin for heathrow PIC */
 232    heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 233    heathrow_irqs[0] =
 234        g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 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            heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 240            heathrow_irqs[i][0] =
 241                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 242            break;
 243        default:
 244            error_report("Bus model not supported on OldWorld Mac machine");
 245            exit(1);
 246        }
 247    }
 248
 249    /* Timebase Frequency */
 250    if (kvm_enabled()) {
 251        tbfreq = kvmppc_get_tbfreq();
 252    } else {
 253        tbfreq = TBFREQ;
 254    }
 255
 256    /* init basic PC hardware */
 257    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 258        error_report("Only 6xx bus is supported on heathrow machine");
 259        exit(1);
 260    }
 261    pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
 262    pci_bus = pci_grackle_init(0xfec00000, pic,
 263                               get_system_memory(),
 264                               get_system_io());
 265    pci_vga_init(pci_bus);
 266
 267    escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
 268                               serial_hds[1], ESCC_CLOCK, 4);
 269    memory_region_init_alias(escc_bar, NULL, "escc-bar",
 270                             escc_mem, 0, memory_region_size(escc_mem));
 271
 272    for(i = 0; i < nb_nics; i++)
 273        pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 274
 275
 276    ide_drive_get(hd, ARRAY_SIZE(hd));
 277
 278    macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 279    dev = DEVICE(macio);
 280    qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 281    qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
 282    qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
 283    qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
 284    qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
 285    qdev_prop_set_uint64(dev, "frequency", tbfreq);
 286    macio_init(macio, pic_mem, escc_bar);
 287
 288    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 289                                                        "ide[0]"));
 290    macio_ide_init_drives(macio_ide, hd);
 291
 292    macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 293                                                        "ide[1]"));
 294    macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 295
 296    dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 297    adb_bus = qdev_get_child_bus(dev, "adb.0");
 298    dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 299    qdev_init_nofail(dev);
 300    dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 301    qdev_init_nofail(dev);
 302
 303    if (machine_usb(machine)) {
 304        pci_create_simple(pci_bus, -1, "pci-ohci");
 305    }
 306
 307    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 308        graphic_depth = 15;
 309
 310    /* No PCI init: the BIOS will do it */
 311
 312    fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 313    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 314    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 315    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 316    fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 317    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 318    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 319    if (kernel_cmdline) {
 320        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 321        pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 322    } else {
 323        fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 324    }
 325    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 326    fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 327    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 328
 329    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 330    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 331    fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 332
 333    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 334    if (kvm_enabled()) {
 335#ifdef CONFIG_KVM
 336        uint8_t *hypercall;
 337
 338        hypercall = g_malloc(16);
 339        kvmppc_get_hypercall(env, hypercall, 16);
 340        fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 341        fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 342#endif
 343    }
 344    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 345    /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 346    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 347    fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 348
 349    /* MacOS NDRV VGA driver */
 350    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 351    if (filename) {
 352        ndrv_size = get_image_size(filename);
 353        if (ndrv_size != -1) {
 354            ndrv_file = g_malloc(ndrv_size);
 355            ndrv_size = load_image(filename, ndrv_file);
 356
 357            fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 358        }
 359        g_free(filename);
 360    }
 361
 362    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 363}
 364
 365static int heathrow_kvm_type(const char *arg)
 366{
 367    /* Always force PR KVM */
 368    return 2;
 369}
 370
 371static void heathrow_class_init(ObjectClass *oc, void *data)
 372{
 373    MachineClass *mc = MACHINE_CLASS(oc);
 374
 375    mc->desc = "Heathrow based PowerMAC";
 376    mc->init = ppc_heathrow_init;
 377    mc->block_default_type = IF_IDE;
 378    mc->max_cpus = MAX_CPUS;
 379#ifndef TARGET_PPC64
 380    mc->is_default = 1;
 381#endif
 382    /* TOFIX "cad" when Mac floppy is implemented */
 383    mc->default_boot_order = "cd";
 384    mc->kvm_type = heathrow_kvm_type;
 385    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 386}
 387
 388static const TypeInfo ppc_heathrow_machine_info = {
 389    .name          = MACHINE_TYPE_NAME("g3beige"),
 390    .parent        = TYPE_MACHINE,
 391    .class_init    = heathrow_class_init
 392};
 393
 394static void ppc_heathrow_register_types(void)
 395{
 396    type_register_static(&ppc_heathrow_machine_info);
 397}
 398
 399type_init(ppc_heathrow_register_types);
 400