text: 
  /*
   * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator
   *
   * Copyright (c) 2004-2007 Fabrice Bellard
   * Copyright (c) 2007 Jocelyn Mayer
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  #include "hw/hw.h"
  #include "hw/ppc/ppc.h"
  #include "mac.h"
  #include "hw/input/adb.h"
  #include "hw/timer/m48t59.h"
  #include "sysemu/sysemu.h"
  #include "net/net.h"
  #include "hw/isa/isa.h"
  #include "hw/pci/pci.h"
  #include "hw/boards.h"
  #include "hw/nvram/fw_cfg.h"
  #include "hw/char/escc.h"
  #include "hw/ide.h"
  #include "hw/loader.h"
  #include "elf.h"
  #include "sysemu/kvm.h"
  #include "kvm_ppc.h"
  #include "sysemu/blockdev.h"
  #include "exec/address-spaces.h"
  
  #define MAX_IDE_BUS 2
  #define CFG_ADDR 0xf0000510
  #define TBFREQ 16600000UL
  #define CLOCKFREQ 266000000UL
  #define BUSFREQ 66000000UL
  
  static int fw_cfg_boot_set(void *opaque, const char *boot_device)
  {
      fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
      return 0;
  }
  
  
  static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  {
      return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  }
  
  static hwaddr round_page(hwaddr addr)
  {
      return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
  }
  
  static void ppc_heathrow_reset(void *opaque)
  {
      PowerPCCPU *cpu = opaque;
  
      cpu_reset(CPU(cpu));
  }
  
  static void ppc_heathrow_init(MachineState *machine)
  {
      ram_addr_t ram_size = machine->ram_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;
      const char *boot_device = machine->boot_order;
      MemoryRegion *sysmem = get_system_memory();
      PowerPCCPU *cpu = NULL;
      CPUPPCState *env = NULL;
      char *filename;
      qemu_irq *pic, **heathrow_irqs;
      int linux_boot, i;
      MemoryRegion *ram = g_new(MemoryRegion, 1);
      MemoryRegion *bios = g_new(MemoryRegion, 1);
      MemoryRegion *isa = g_new(MemoryRegion, 1);
      uint32_t kernel_base, initrd_base, cmdline_base = 0;
      int32_t kernel_size, initrd_size;
      PCIBus *pci_bus;
      PCIDevice *macio;
      MACIOIDEState *macio_ide;
      DeviceState *dev;
      BusState *adb_bus;
      int bios_size;
      MemoryRegion *pic_mem;
      MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1);
      uint16_t ppc_boot_device;
      DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
      void *fw_cfg;
  
      linux_boot = (kernel_filename != NULL);
  
      /* init CPUs */
      if (cpu_model == NULL)
          cpu_model = "G3";
      for (i = 0; i < smp_cpus; i++) {
          cpu = cpu_ppc_init(cpu_model);
          if (cpu == NULL) {
              fprintf(stderr, "Unable to find PowerPC CPU definition\n");
              exit(1);
          }
          env = &cpu->env;
  
          /* Set time-base frequency to 16.6 Mhz */
          cpu_ppc_tb_init(env,  TBFREQ);
          qemu_register_reset(ppc_heathrow_reset, cpu);
      }
  
      /* allocate RAM */
      if (ram_size > (2047 << 20)) {
          fprintf(stderr,
                  "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
                  ((unsigned int)ram_size / (1 << 20)));
          exit(1);
      }
  
      memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
                                           ram_size);
      memory_region_add_subregion(sysmem, 0, ram);
  
      /* allocate and load BIOS */
      memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE);
      vmstate_register_ram_global(bios);
  
      if (bios_name == NULL)
          bios_name = PROM_FILENAME;
      filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
      memory_region_set_readonly(bios, true);
      memory_region_add_subregion(sysmem, PROM_ADDR, bios);
  
      /* Load OpenBIOS (ELF) */
      if (filename) {
          bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
                               1, ELF_MACHINE, 0);
          g_free(filename);
      } else {
          bios_size = -1;
      }
      if (bios_size < 0 || bios_size > BIOS_SIZE) {
          hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
          exit(1);
      }
  
      if (linux_boot) {
          uint64_t lowaddr = 0;
          int bswap_needed;
  
  #ifdef BSWAP_NEEDED
          bswap_needed = 1;
  #else
          bswap_needed = 0;
  #endif
          kernel_base = KERNEL_LOAD_ADDR;
          kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
                                 NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0);
          if (kernel_size < 0)
              kernel_size = load_aout(kernel_filename, kernel_base,
                                      ram_size - kernel_base, bswap_needed,
                                      TARGET_PAGE_SIZE);
          if (kernel_size < 0)
              kernel_size = load_image_targphys(kernel_filename,
                                                kernel_base,
                                                ram_size - kernel_base);
          if (kernel_size < 0) {
              hw_error("qemu: could not load kernel '%s'\n",
                        kernel_filename);
              exit(1);
          }
          /* load initrd */
          if (initrd_filename) {
              initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
              initrd_size = load_image_targphys(initrd_filename, initrd_base,
                                                ram_size - initrd_base);
              if (initrd_size < 0) {
                  hw_error("qemu: could not load initial ram disk '%s'\n",
                           initrd_filename);
                  exit(1);
              }
              cmdline_base = round_page(initrd_base + initrd_size);
          } else {
              initrd_base = 0;
              initrd_size = 0;
              cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
          }
          ppc_boot_device = 'm';
      } else {
          kernel_base = 0;
          kernel_size = 0;
          initrd_base = 0;
          initrd_size = 0;
          ppc_boot_device = '\0';
          for (i = 0; boot_device[i] != '\0'; i++) {
              /* TOFIX: for now, the second IDE channel is not properly
               *        used by OHW. The Mac floppy disk are not emulated.
               *        For now, OHW cannot boot from the network.
               */
  #if 0
              if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
                  ppc_boot_device = boot_device[i];
                  break;
              }
  #else
              if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
                  ppc_boot_device = boot_device[i];
                  break;
              }
  #endif
          }
          if (ppc_boot_device == '\0') {
              fprintf(stderr, "No valid boot device for G3 Beige machine\n");
              exit(1);
          }
      }
  
      /* Register 2 MB of ISA IO space */
      memory_region_init_alias(isa, NULL, "isa_mmio",
                               get_system_io(), 0, 0x00200000);
      memory_region_add_subregion(sysmem, 0xfe000000, isa);
  
      /* XXX: we register only 1 output pin for heathrow PIC */
      heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
      heathrow_irqs[0] =
          g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
      /* Connect the heathrow PIC outputs to the 6xx bus */
      for (i = 0; i < smp_cpus; i++) {
          switch (PPC_INPUT(env)) {
          case PPC_FLAGS_INPUT_6xx:
              heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
              heathrow_irqs[i][0] =
                  ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
              break;
          default:
              hw_error("Bus model not supported on OldWorld Mac machine\n");
          }
      }
  
      /* init basic PC hardware */
      if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
          hw_error("Only 6xx bus is supported on heathrow machine\n");
      }
      pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
      pci_bus = pci_grackle_init(0xfec00000, pic,
                                 get_system_memory(),
                                 get_system_io());
      pci_vga_init(pci_bus);
  
      escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
                                 serial_hds[1], ESCC_CLOCK, 4);
      memory_region_init_alias(escc_bar, NULL, "escc-bar",
                               escc_mem, 0, memory_region_size(escc_mem));
  
      for(i = 0; i < nb_nics; i++)
          pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
  
  
      ide_drive_get(hd, MAX_IDE_BUS);
  
      macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
      dev = DEVICE(macio);
      qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
      qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
      qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
      qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
      qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
      macio_init(macio, pic_mem, escc_bar);
  
      macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
                                                          "ide[0]"));
      macio_ide_init_drives(macio_ide, hd);
  
      macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
                                                          "ide[1]"));
      macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
  
      dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
      adb_bus = qdev_get_child_bus(dev, "adb.0");
      dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
      qdev_init_nofail(dev);
      dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
      qdev_init_nofail(dev);
  
      if (usb_enabled(false)) {
          pci_create_simple(pci_bus, -1, "pci-ohci");
      }
  
      if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
          graphic_depth = 15;
  
      /* No PCI init: the BIOS will do it */
  
      fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
      fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
      fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
      fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
      fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
      fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
      fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
      if (kernel_cmdline) {
          fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
          pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
      } else {
          fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
      }
      fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
      fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
      fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
  
      fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
      fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
      fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
  
      fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
      if (kvm_enabled()) {
  #ifdef CONFIG_KVM
          uint8_t *hypercall;
  
          fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());
          hypercall = g_malloc(16);
          kvmppc_get_hypercall(env, hypercall, 16);
          fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
          fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
  #endif
      } else {
          fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, TBFREQ);
      }
      /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
      fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
      fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
  
      qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
  }
  
  static QEMUMachine heathrow_machine = {
      .name = "g3beige",
      .desc = "Heathrow based PowerMAC",
      .init = ppc_heathrow_init,
      .max_cpus = MAX_CPUS,
  #ifndef TARGET_PPC64
      .is_default = 1,
  #endif
      .default_boot_order = "cd", /* TOFIX "cad" when Mac floppy is implemented */
  };
  
  static void heathrow_machine_init(void)
  {
      qemu_register_machine(&heathrow_machine);
  }
  
  machine_init(heathrow_machine_init);
  