void mips_malta_init(MachineState *machine)

{

    ram_addr_t ram_size = machine->ram_size;

    ram_addr_t ram_low_size;

    const char *cpu_model = machine->cpu_model;

    const char *kernel_filename = machine->kernel_filename;

    const char *kernel_cmdline = machine->kernel_cmdline;

    const char *initrd_filename = machine->initrd_filename;

    char *filename;

    pflash_t *fl;

    MemoryRegion *system_memory = get_system_memory();

    MemoryRegion *ram_high = g_new(MemoryRegion, 1);

    MemoryRegion *ram_low_preio = g_new(MemoryRegion, 1);

    MemoryRegion *ram_low_postio;

    MemoryRegion *bios, *bios_copy = g_new(MemoryRegion, 1);

    target_long bios_size = FLASH_SIZE;

    const size_t smbus_eeprom_size = 8 * 256;

    uint8_t *smbus_eeprom_buf = g_malloc0(smbus_eeprom_size);

    int64_t kernel_entry, bootloader_run_addr;

    PCIBus *pci_bus;

    ISABus *isa_bus;

    MIPSCPU *cpu;

    CPUMIPSState *env;

    qemu_irq *isa_irq;

    qemu_irq *cpu_exit_irq;

    int piix4_devfn;

    I2CBus *smbus;

    int i;

    DriveInfo *dinfo;

    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];

    DriveInfo *fd[MAX_FD];

    int fl_idx = 0;

    int fl_sectors = bios_size >> 16;

    int be;



    DeviceState *dev = qdev_create(NULL, TYPE_MIPS_MALTA);

    MaltaState *s = MIPS_MALTA(dev);



    /* The whole address space decoded by the GT-64120A doesn't generate

       exception when accessing invalid memory. Create an empty slot to

       emulate this feature. */

    empty_slot_init(0, 0x20000000);



    qdev_init_nofail(dev);



    /* Make sure the first 3 serial ports are associated with a device. */

    for(i = 0; i < 3; i++) {

        if (!serial_hds[i]) {

            char label[32];

            snprintf(label, sizeof(label), "serial%d", i);

            serial_hds[i] = qemu_chr_new(label, "null", NULL);

        }

    }



    /* init CPUs */

    if (cpu_model == NULL) {

#ifdef TARGET_MIPS64

        cpu_model = "20Kc";

#else

        cpu_model = "24Kf";

#endif

    }



    for (i = 0; i < smp_cpus; i++) {

        cpu = cpu_mips_init(cpu_model);

        if (cpu == NULL) {

            fprintf(stderr, "Unable to find CPU definition\n");

            exit(1);

        }

        env = &cpu->env;



        /* Init internal devices */

        cpu_mips_irq_init_cpu(env);

        cpu_mips_clock_init(env);

        qemu_register_reset(main_cpu_reset, cpu);

    }

    cpu = MIPS_CPU(first_cpu);

    env = &cpu->env;



    /* allocate RAM */

    if (ram_size > (2048u << 20)) {

        fprintf(stderr,

                "qemu: Too much memory for this machine: %d MB, maximum 2048 MB\n",

                ((unsigned int)ram_size / (1 << 20)));

        exit(1);

    }



    /* register RAM at high address where it is undisturbed by IO */

    memory_region_allocate_system_memory(ram_high, NULL, "mips_malta.ram",

                                         ram_size);

    memory_region_add_subregion(system_memory, 0x80000000, ram_high);



    /* alias for pre IO hole access */

    memory_region_init_alias(ram_low_preio, NULL, "mips_malta_low_preio.ram",

                             ram_high, 0, MIN(ram_size, (256 << 20)));

    memory_region_add_subregion(system_memory, 0, ram_low_preio);



    /* alias for post IO hole access, if there is enough RAM */

    if (ram_size > (512 << 20)) {

        ram_low_postio = g_new(MemoryRegion, 1);

        memory_region_init_alias(ram_low_postio, NULL,

                                 "mips_malta_low_postio.ram",

                                 ram_high, 512 << 20,

                                 ram_size - (512 << 20));

        memory_region_add_subregion(system_memory, 512 << 20, ram_low_postio);

    }



    /* generate SPD EEPROM data */

    generate_eeprom_spd(&smbus_eeprom_buf[0 * 256], ram_size);

    generate_eeprom_serial(&smbus_eeprom_buf[6 * 256]);



#ifdef TARGET_WORDS_BIGENDIAN

    be = 1;

#else

    be = 0;

#endif

    /* FPGA */

    /* The CBUS UART is attached to the MIPS CPU INT2 pin, ie interrupt 4 */

    malta_fpga_init(system_memory, FPGA_ADDRESS, env->irq[4], serial_hds[2]);



    /* Load firmware in flash / BIOS. */

    dinfo = drive_get(IF_PFLASH, 0, fl_idx);

#ifdef DEBUG_BOARD_INIT

    if (dinfo) {

        printf("Register parallel flash %d size " TARGET_FMT_lx " at "

               "addr %08llx '%s' %x\n",

               fl_idx, bios_size, FLASH_ADDRESS,

               blk_name(dinfo->bdrv), fl_sectors);

    }

#endif

    fl = pflash_cfi01_register(FLASH_ADDRESS, NULL, "mips_malta.bios",

                               BIOS_SIZE,

                               dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,

                               65536, fl_sectors,

                               4, 0x0000, 0x0000, 0x0000, 0x0000, be);

    bios = pflash_cfi01_get_memory(fl);

    fl_idx++;

    if (kernel_filename) {

        ram_low_size = MIN(ram_size, 256 << 20);

        /* For KVM we reserve 1MB of RAM for running bootloader */

        if (kvm_enabled()) {

            ram_low_size -= 0x100000;

            bootloader_run_addr = 0x40000000 + ram_low_size;

        } else {

            bootloader_run_addr = 0xbfc00000;

        }



        /* Write a small bootloader to the flash location. */

        loaderparams.ram_size = ram_low_size;

        loaderparams.kernel_filename = kernel_filename;

        loaderparams.kernel_cmdline = kernel_cmdline;

        loaderparams.initrd_filename = initrd_filename;

        kernel_entry = load_kernel();



        write_bootloader(env, memory_region_get_ram_ptr(bios),

                         bootloader_run_addr, kernel_entry);

        if (kvm_enabled()) {

            /* Write the bootloader code @ the end of RAM, 1MB reserved */

            write_bootloader(env, memory_region_get_ram_ptr(ram_low_preio) +

                                    ram_low_size,

                             bootloader_run_addr, kernel_entry);

        }

    } else {

        /* The flash region isn't executable from a KVM guest */

        if (kvm_enabled()) {

            error_report("KVM enabled but no -kernel argument was specified. "

                         "Booting from flash is not supported with KVM.");

            exit(1);

        }

        /* Load firmware from flash. */

        if (!dinfo) {

            /* Load a BIOS image. */

            if (bios_name == NULL) {

                bios_name = BIOS_FILENAME;

            }

            filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);

            if (filename) {

                bios_size = load_image_targphys(filename, FLASH_ADDRESS,

                                                BIOS_SIZE);

                g_free(filename);

            } else {

                bios_size = -1;

            }

            if ((bios_size < 0 || bios_size > BIOS_SIZE) &&

                !kernel_filename && !qtest_enabled()) {

                error_report("Could not load MIPS bios '%s', and no "

                             "-kernel argument was specified", bios_name);

                exit(1);

            }

        }

        /* In little endian mode the 32bit words in the bios are swapped,

           a neat trick which allows bi-endian firmware. */

#ifndef TARGET_WORDS_BIGENDIAN

        {

            uint32_t *end, *addr = rom_ptr(FLASH_ADDRESS);

            if (!addr) {

                addr = memory_region_get_ram_ptr(bios);

            }

            end = (void *)addr + MIN(bios_size, 0x3e0000);

            while (addr < end) {

                bswap32s(addr);

                addr++;

            }

        }

#endif

    }



    /*

     * Map the BIOS at a 2nd physical location, as on the real board.

     * Copy it so that we can patch in the MIPS revision, which cannot be

     * handled by an overlapping region as the resulting ROM code subpage

     * regions are not executable.

     */

    memory_region_init_ram(bios_copy, NULL, "bios.1fc", BIOS_SIZE,

                           &error_abort);

    if (!rom_copy(memory_region_get_ram_ptr(bios_copy),

                  FLASH_ADDRESS, BIOS_SIZE)) {

        memcpy(memory_region_get_ram_ptr(bios_copy),

               memory_region_get_ram_ptr(bios), BIOS_SIZE);

    }

    memory_region_set_readonly(bios_copy, true);

    memory_region_add_subregion(system_memory, RESET_ADDRESS, bios_copy);



    /* Board ID = 0x420 (Malta Board with CoreLV) */

    stl_p(memory_region_get_ram_ptr(bios_copy) + 0x10, 0x00000420);



    /* Init internal devices */

    cpu_mips_irq_init_cpu(env);

    cpu_mips_clock_init(env);



    /*

     * We have a circular dependency problem: pci_bus depends on isa_irq,

     * isa_irq is provided by i8259, i8259 depends on ISA, ISA depends

     * on piix4, and piix4 depends on pci_bus.  To stop the cycle we have

     * qemu_irq_proxy() adds an extra bit of indirection, allowing us

     * to resolve the isa_irq -> i8259 dependency after i8259 is initialized.

     */

    isa_irq = qemu_irq_proxy(&s->i8259, 16);



    /* Northbridge */

    pci_bus = gt64120_register(isa_irq);



    /* Southbridge */

    ide_drive_get(hd, ARRAY_SIZE(hd));



    piix4_devfn = piix4_init(pci_bus, &isa_bus, 80);



    /* Interrupt controller */

    /* The 8259 is attached to the MIPS CPU INT0 pin, ie interrupt 2 */

    s->i8259 = i8259_init(isa_bus, env->irq[2]);



    isa_bus_irqs(isa_bus, s->i8259);

    pci_piix4_ide_init(pci_bus, hd, piix4_devfn + 1);

    pci_create_simple(pci_bus, piix4_devfn + 2, "piix4-usb-uhci");

    smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100,

                          isa_get_irq(NULL, 9), NULL, 0, NULL, NULL);

    smbus_eeprom_init(smbus, 8, smbus_eeprom_buf, smbus_eeprom_size);

    g_free(smbus_eeprom_buf);

    pit = pit_init(isa_bus, 0x40, 0, NULL);

    cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);

    DMA_init(0, cpu_exit_irq);



    /* Super I/O */

    isa_create_simple(isa_bus, "i8042");



    rtc_init(isa_bus, 2000, NULL);

    serial_hds_isa_init(isa_bus, 2);

    parallel_hds_isa_init(isa_bus, 1);



    for(i = 0; i < MAX_FD; i++) {

        fd[i] = drive_get(IF_FLOPPY, 0, i);

    }

    fdctrl_init_isa(isa_bus, fd);



    /* Network card */

    network_init(pci_bus);



    /* Optional PCI video card */

    pci_vga_init(pci_bus);

}
