dev_c2600.c

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   /* Set the cookie */
   memcpy(router->vm->chassis_cookie,
          eeprom_c2600_mb_data,sizeof(eeprom_c2600_mb_data));

   router->vm->chassis_cookie[6] = mb_info->id;

   /* Set the chassis base MAC address */
   c2600_burn_mac_addr(router,&router->mac_addr);

   /* Set the mainboard driver */
   if (vm_slot_active(router->vm,0,0))
      vm_slot_remove_binding(router->vm,0,0);

   vm_slot_add_binding(router->vm,mb_info->mb_driver,0,0);
   return(0);
}

/* Set chassis MAC address */
int c2600_chassis_set_mac_addr(c2600_t *router,char *mac_addr)
{
   if (parse_mac_addr(&router->mac_addr,mac_addr) == -1) {
      vm_error(router->vm,"unable to parse MAC address '%s'.\n",mac_addr);
      return(-1);
   }

   /* Set the chassis base MAC address */
   c2600_burn_mac_addr(router,&router->mac_addr);
   return(0);
}

/* Initialize a Cisco 2600 */
static int c2600_init(c2600_t *router)
{   
   vm_instance_t *vm = router->vm;

   /* Create the PCI bus */
   if (!(vm->pci_bus[0] = pci_bus_create("PCI0",0))) {
      vm_error(vm,"unable to create PCI data.\n");
      return(-1);
   }
   
   /* Create the PCI controller */
   if (dev_c2600_pci_init(vm,"c2600_pci",C2600_PCICTRL_ADDR,0x10000,
                          vm->pci_bus[0]) == -1)
      return(-1);

   /* Bind PCI bus to slots 0 and 1 */
   vm->slots_pci_bus[0] = vm->pci_bus[0];
   vm->slots_pci_bus[1] = vm->pci_bus[0];

   vm->elf_machine_id = C2600_ELF_MACHINE_ID;
   return(0);
}

/* Show C2600 hardware info */
void c2600_show_hardware(c2600_t *router)
{
   vm_instance_t *vm = router->vm;

   printf("C2600 instance '%s' (id %d):\n",vm->name,vm->instance_id);

   printf("  VM Status  : %d\n",vm->status);
   printf("  RAM size   : %u Mb\n",vm->ram_size);
   printf("  NVRAM size : %u Kb\n",vm->nvram_size);
   printf("  IOS image  : %s\n\n",vm->ios_image);

   if (vm->debug_level > 0) {
      dev_show_list(vm);
      pci_dev_show_list(vm->pci_bus[0]);
      pci_dev_show_list(vm->pci_bus[1]);
      printf("\n");
   }
}

/* Initialize default parameters for a C2600 */
static void c2600_init_defaults(c2600_t *router)
{   
   vm_instance_t *vm = router->vm;   
   n_eth_addr_t *m;
   m_uint16_t pid;

   /* Set platform slots characteristics */
   vm->nr_slots   = C2600_MAX_NM_BAYS;
   vm->slots_type = CISCO_CARD_TYPE_NM;
   vm->slots_drivers = nm_drivers;

   pid = (m_uint16_t)getpid();

   /* Generate a chassis MAC address based on the instance ID */
   m = &router->mac_addr;
   m->eth_addr_byte[0] = vm_get_mac_addr_msb(vm);
   m->eth_addr_byte[1] = vm->instance_id & 0xFF;
   m->eth_addr_byte[2] = pid >> 8;
   m->eth_addr_byte[3] = pid & 0xFF;
   m->eth_addr_byte[4] = 0x00;
   m->eth_addr_byte[5] = 0x00;

   c2600_init_eeprom_groups(router);
   c2600_mainboard_set_type(router,C2600_DEFAULT_MAINBOARD);
   c2600_burn_mac_addr(router,&router->mac_addr);

   vm->ram_mmap          = C2600_DEFAULT_RAM_MMAP;
   vm->ram_size          = C2600_DEFAULT_RAM_SIZE;
   vm->rom_size          = C2600_DEFAULT_ROM_SIZE;
   vm->nvram_size        = C2600_DEFAULT_NVRAM_SIZE;
   vm->conf_reg_setup    = C2600_DEFAULT_CONF_REG;
   vm->clock_divisor     = C2600_DEFAULT_CLOCK_DIV;
   vm->nvram_rom_space   = C2600_NVRAM_ROM_RES_SIZE;
   vm->nm_iomem_size     = C2600_DEFAULT_IOMEM_SIZE;

   vm->pcmcia_disk_size[0] = C2600_DEFAULT_DISK0_SIZE;
   vm->pcmcia_disk_size[1] = C2600_DEFAULT_DISK1_SIZE;
}

/* Set an IRQ */
static void c2600_set_irq(vm_instance_t *vm,u_int irq)
{
   c2600_t *router = VM_C2600(vm);
   cpu_ppc_t *cpu = CPU_PPC32(vm->boot_cpu);
   u_int slot,port;

   switch(irq) {
      case C2600_VTIMER_IRQ:
         mpc860_set_pending_irq(router->mpc_data,30);
         break;
      case C2600_DUART_IRQ:
         mpc860_set_pending_irq(router->mpc_data,29);
         break;
      case C2600_NETIO_IRQ:
         mpc860_set_pending_irq(router->mpc_data,25);
         break;
      case C2600_PA_MGMT_IRQ:
         mpc860_set_pending_irq(router->mpc_data,27);
         break;

      case C2600_NETIO_IRQ_BASE ... C2600_NETIO_IRQ_END:
         c2600_net_irq_get_slot_port(irq,&slot,&port);
         dev_c2600_iofpga_net_set_irq(router->iofpga_data,slot,port);
         break;

      /* IRQ test */
      case 255:
         mpc860_set_pending_irq(router->mpc_data,24);
         break;
   }

   if (vm->irq_idle_preempt[irq])
      cpu_idle_break_wait(cpu->gen);
}

/* Clear an IRQ */
static void c2600_clear_irq(vm_instance_t *vm,u_int irq)
{
   c2600_t *router = VM_C2600(vm);
   u_int slot,port;

   switch(irq) {
      case C2600_VTIMER_IRQ:
         mpc860_clear_pending_irq(router->mpc_data,30);
         break;
      case C2600_DUART_IRQ:
         mpc860_clear_pending_irq(router->mpc_data,29);
         break;
      case C2600_NETIO_IRQ:
         mpc860_clear_pending_irq(router->mpc_data,25);
         break;
      case C2600_PA_MGMT_IRQ:
         mpc860_clear_pending_irq(router->mpc_data,27);
         break;

      case C2600_NETIO_IRQ_BASE ... C2600_NETIO_IRQ_END:
         c2600_net_irq_get_slot_port(irq,&slot,&port);
         dev_c2600_iofpga_net_clear_irq(router->iofpga_data,slot,port);
         break;

      /* IRQ test */
      case 255:
         mpc860_clear_pending_irq(router->mpc_data,24);
         break;
   }
}

/* Initialize the C2600 Platform */
static int c2600_init_platform(c2600_t *router)
{
   vm_instance_t *vm = router->vm;
   vm_obj_t *obj;
   cpu_ppc_t *cpu;
   cpu_gen_t *gen;

   /* Copy config register setup into "active" config register */
   vm->conf_reg = vm->conf_reg_setup;

   /* Create Console and AUX ports */
   vm_init_vtty(vm);

   /* Create a CPU group */
   vm->cpu_group = cpu_group_create("System CPU");

   /* Initialize the virtual PowerPC processor */
   if (!(gen = cpu_create(vm,CPU_TYPE_PPC32,0))) {
      vm_error(vm,"unable to create CPU!\n");
      return(-1);
   }

   cpu = CPU_PPC32(gen);

   /* Add this CPU to the system CPU group */
   cpu_group_add(vm->cpu_group,gen);
   vm->boot_cpu = gen;

   /* Set processor ID */
   ppc32_set_pvr(cpu,0x00500202);
   
   /* Mark the Network IO interrupt as high priority */
   vm->irq_idle_preempt[C2600_NETIO_IRQ] = TRUE;
   vm->irq_idle_preempt[C2600_DUART_IRQ] = TRUE;

   /* Copy some parameters from VM to CPU (idle PC, ...) */
   cpu->idle_pc = vm->idle_pc;

   if (vm->timer_irq_check_itv)
      cpu->timer_irq_check_itv = vm->timer_irq_check_itv;

   /* Remote emulator control */
   dev_remote_control_init(vm,0xf6000000,0x1000);

   /* MPC860 */
   cpu->mpc860_immr = C2600_MPC860_ADDR;

   if (dev_mpc860_init(vm,"MPC860",C2600_MPC860_ADDR,0x10000) == -1)
      return(-1);

   if (!(obj = vm_object_find(router->vm,"MPC860")))
      return(-1);

   router->mpc_data = obj->data;

   /* IO FPGA */
   if (dev_c2600_iofpga_init(router,C2600_IOFPGA_ADDR,0x10000) == -1)
      return(-1);

   if (!(obj = vm_object_find(router->vm,"io_fpga")))
      return(-1);

   router->iofpga_data = obj->data;

   /* Initialize the chassis */
   if (c2600_init(router) == -1)
      return(-1);

   /* Initialize RAM */
   vm_ram_init(vm,0x00000000ULL);

   /* Initialize ROM */
   if (!vm->rom_filename) {
      /* use embedded ROM */
      dev_rom_init(vm,"rom",C2600_ROM_ADDR,512*1024,
                   ppc32_microcode,ppc32_microcode_len);
   } else {
      /* use alternate ROM */
      dev_ram_init(vm,"rom",TRUE,TRUE,NULL,FALSE,C2600_ROM_ADDR,512*1024);
   }

   /* RAM aliasing */
   dev_create_ram_alias(vm,"ram_alias","ram",0x80000000,vm->ram_size*1048576);

   /* NVRAM */
   dev_ram_init(vm,"nvram",TRUE,FALSE,NULL,FALSE,
                C2600_NVRAM_ADDR,vm->nvram_size*4096);
   c2600_nvram_check_empty_config(vm);

   /* Bootflash */
   dev_bootflash_init(vm,"flash0","c2600-bootflash-8mb",
                      C2600_FLASH_ADDR);
   dev_bootflash_init(vm,"flash1","c2600-bootflash-8mb",
                      C2600_FLASH_ADDR+0x800000);

   /* Initialize the NS16552 DUART */
   dev_ns16552_init(vm,C2600_DUART_ADDR,0x1000,0,C2600_DUART_IRQ,
                    vm->vtty_con,vm->vtty_aux);

   /* Initialize Network Modules */
   if (vm_slot_init_all(vm) == -1)
      return(-1);

   /* Show device list */
   c2600_show_hardware(router);
   return(0);
}

static struct ppc32_bat_prog bat_array[] = {
   { PPC32_IBAT_IDX, 0, 0xfff0001e, 0xfff00001 },
   { PPC32_IBAT_IDX, 1, 0x00001ffe, 0x00000001 },
   { PPC32_IBAT_IDX, 2, 0x00000000, 0xee3e0072 },
   { PPC32_IBAT_IDX, 3, 0x80001ffe, 0x00000001 },

   { PPC32_DBAT_IDX, 0, 0x80001ffe, 0x00000042 },
   { PPC32_DBAT_IDX, 1, 0x00001ffe, 0x0000002a },
   { PPC32_DBAT_IDX, 2, 0x40007ffe, 0x4000002a },
   { PPC32_DBAT_IDX, 3, 0xf0001ffe, 0xf000002a },
   { -1, -1, 0, 0 },
};

/* Boot the IOS image */
int c2600_boot_ios(c2600_t *router)
{   
   vm_instance_t *vm = router->vm;
   cpu_ppc_t *cpu;

   if (!vm->boot_cpu)
      return(-1);

   /* Suspend CPU activity since we will restart directly from ROM */
   vm_suspend(vm);

   /* Check that CPU activity is really suspended */
   if (cpu_group_sync_state(vm->cpu_group) == -1) {
      vm_error(vm,"unable to sync with system CPUs.\n");
      return(-1);
   }

   /* Reset the boot CPU */
   cpu = CPU_PPC32(vm->boot_cpu);
   ppc32_reset(cpu);

   /* Adjust stack pointer */
   cpu->gpr[1] |= 0x80000000;

   /* Load BAT registers */
   printf("Loading BAT registers\n");
   ppc32_load_bat_array(cpu,bat_array);
   cpu->msr |= PPC32_MSR_IR|PPC32_MSR_DR;

   /* IRQ routing */
   vm->set_irq = c2600_set_irq;
   vm->clear_irq = c2600_clear_irq;

   /* Load IOS image */
   if (ppc32_load_elf_image(cpu,vm->ios_image,
                            (vm->ghost_status == VM_GHOST_RAM_USE),
                            &vm->ios_entry_point) < 0) 
   {
      vm_error(vm,"failed to load Cisco IOS image '%s'.\n",vm->ios_image);
      return(-1);
   }

   /* Launch the simulation */
   printf("\nC2600 '%s': starting simulation (CPU0 IA=0x%8.8x), "
          "JIT %sabled.\n",
          vm->name,cpu->ia,vm->jit_use ? "en":"dis");

   vm_log(vm,"C2600_BOOT",
          "starting instance (CPU0 PC=0x%8.8x,idle_pc=0x%8.8x,JIT %s)\n",
          cpu->ia,cpu->idle_pc,vm->jit_use ? "on":"off");

   /* Start main CPU */
   if (vm->ghost_status != VM_GHOST_RAM_GENERATE) {
      vm->status = VM_STATUS_RUNNING;
      cpu_start(vm->boot_cpu);
   } else {
      vm->status = VM_STATUS_SHUTDOWN;
   }
   return(0);
}

/* Initialize a Cisco 2600 instance */
static int c2600_init_instance(vm_instance_t *vm)
{   
   c2600_t *router = VM_C2600(vm);
   m_uint32_t rom_entry_point;
   cpu_ppc_t *cpu0;

   if (!vm->ios_image) {
      vm_error(vm,"no Cisco IOS image defined.");
      return(-1);
   }

   /* Initialize the C2600 platform */
   if (c2600_init_platform(router) == -1) {
      vm_error(vm,"unable to initialize the platform hardware.\n");
      return(-1);
   }

   /* Load IOS configuration file */
   if (vm->ios_config != NULL) {
      vm_nvram_push_config(vm,vm->ios_config);
      vm->conf_reg &= ~0x40;
   }

   /* Load ROM (ELF image or embedded) */
   cpu0 = CPU_PPC32(vm->boot_cpu);
   rom_entry_point = (m_uint32_t)PPC32_ROM_START;

   if ((vm->rom_filename != NULL) &&
       (ppc32_load_elf_image(cpu0,vm->rom_filename,0,&rom_entry_point) < 0))
   {
      vm_error(vm,"unable to load alternate ROM '%s', "
               "fallback to embedded ROM.\n\n",vm->rom_filename);
      vm->rom_filename = NULL;
   }

   return(c2600_boot_ios(router));
}

/* Stop a Cisco 2600 instance */
int c2600_stop_instance(vm_instance_t *vm)
{
   printf("\nC2600 '%s': stopping simulation.\n",vm->name);
   vm_log(vm,"C2600_STOP","stopping simulation.\n");

   /* Stop all CPUs */
   if (vm->cpu_group != NULL) {
      vm_stop(vm);
      
      if (cpu_group_sync_state(vm->cpu_group) == -1) {
         vm_error(vm,"unable to sync with system CPUs.\n");
         return(-1);
      }
   }

   /* Free resources that were used during execution to emulate hardware */
   vm_slot_shutdown_all(vm);
   vm_hardware_shutdown(vm);

   /* Cleanup */   
   VM_C2600(vm)->iofpga_data = NULL;
   VM_C2600(vm)->mpc_data = NULL;
   return(0);
}

/* Get MAC address MSB */
static u_int c2600_get_mac_addr_msb(void)
{
   return(0xC8);
}

/* Parse specific options for the Cisco 2600 platform */
static int c2600_cli_parse_options(vm_instance_t *vm,int option)
{
   c2600_t *router = VM_C2600(vm);

   switch(option) {
      /* IO memory reserved for NMs (in percents!) */
      case OPT_IOMEM_SIZE:
         vm->nm_iomem_size = 0x8000 | atoi(optarg);
         break;

      /* Mainboard type */
      case 't':
         c2600_mainboard_set_type(router,optarg);
         break;

      /* Unknown option */
      default:
         return(-1);
   }

   return(0);
}

/* Show specific CLI options */
static void c2600_cli_show_options(vm_instance_t *vm)
{
   printf("  --iomem-size <val> : IO memory (in percents, default: %u)\n"
          "  -p <nm_desc>       : Define a Network Module\n"
          "  -s <nm_nio>        : Bind a Network IO interface to a "
          "Network Module\n",
          vm->nm_iomem_size);
}

/* Platform definition */
static vm_platform_t c2600_platform = {
   "c2600", "C2600", "2600",
   c2600_create_instance,
   c2600_delete_instance,
   c2600_init_instance,
   c2600_stop_instance,
   c2600_nvram_extract_config,
   c2600_nvram_push_config,
   c2600_get_mac_addr_msb,
   c2600_save_config,
   c2600_cli_parse_options,
   c2600_cli_show_options,
   c2600_mainboard_show_drivers,
};

/* Register the c2600 platform */
int c2600_platform_register(void)
{
   if (vm_platform_register(&c2600_platform) == -1)
      return(-1);

   return(hypervisor_c2600_init(&c2600_platform));
}