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dpavlin |
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/* |
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* Cisco router simulation platform. |
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* Copyright (c) 2006 Christophe Fillot (cf@utc.fr) |
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* |
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* PowerPC VM experimentations. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <assert.h> |
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#include "cpu.h" |
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#include "vm.h" |
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#include "dynamips.h" |
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#include "memory.h" |
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#include "device.h" |
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#include "dev_rom.h" |
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#include "pci_io.h" |
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#include "dev_vtty.h" |
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#include "registry.h" |
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#include "net.h" |
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#include "ppc32_mem.h" |
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#include "ppc32_vmtest.h" |
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static struct ppc32_bat_prog bat_array[] = { |
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{ PPC32_IBAT_IDX, 0, 0xfff0001e, 0xfff00001 }, |
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{ PPC32_IBAT_IDX, 1, 0x00001ffe, 0x00000001 }, |
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{ PPC32_IBAT_IDX, 2, 0x00000000, 0xee3e0072 }, |
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{ PPC32_IBAT_IDX, 3, 0x80001ffe, 0x80000001 }, |
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{ PPC32_DBAT_IDX, 0, 0x80001ffe, 0x80000042 }, |
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{ PPC32_DBAT_IDX, 1, 0x00001ffe, 0x0000002a }, |
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{ PPC32_DBAT_IDX, 2, 0x60001ffe, 0x6000002a }, |
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{ PPC32_DBAT_IDX, 3, 0xfc0007fe, 0xfc00002a }, |
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{ -1, -1, 0, 0 }, |
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}; |
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/* Create a new test instance */ |
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vm_instance_t *ppc32_vmtest_create_instance(char *name,int instance_id) |
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{ |
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vm_instance_t *vm; |
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if (!(vm = vm_create(name,instance_id,VM_TYPE_PPC32_TEST))) { |
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fprintf(stderr,"PPC32_VMTEST '%s': unable to create VM instance!\n", |
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name); |
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return NULL; |
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} |
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vm->ram_size = PPC32_VMTEST_DEFAULT_RAM_SIZE; |
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return vm; |
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} |
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/* Free resources used by a test instance */ |
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static int ppc32_vmtest_free_instance(void *data,void *arg) |
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{ |
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vm_instance_t *vm = data; |
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if (vm->type == VM_TYPE_PPC32_TEST) { |
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/* Stop all CPUs */ |
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if (vm->cpu_group != NULL) { |
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vm_stop(vm); |
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if (cpu_group_sync_state(vm->cpu_group) == -1) { |
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vm_error(vm,"unable to sync with system CPUs.\n"); |
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return(FALSE); |
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} |
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} |
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/* Free all resources used by VM */ |
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vm_free(vm); |
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return(TRUE); |
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} |
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return(FALSE); |
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} |
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/* Delete a router instance */ |
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int ppc32_vmtest_delete_instance(char *name) |
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{ |
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return(registry_delete_if_unused(name,OBJ_TYPE_VM, |
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ppc32_vmtest_free_instance,NULL)); |
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} |
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/* Delete all router instances */ |
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int ppc32_vmtest_delete_all_instances(void) |
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{ |
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return(registry_delete_type(OBJ_TYPE_VM,ppc32_vmtest_free_instance,NULL)); |
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} |
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/* Set IRQ line */ |
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static void ppc32_vmtest_set_irq(vm_instance_t *vm,u_int irq) |
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{ |
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cpu_ppc_t *cpu = CPU_PPC32(vm->boot_cpu); |
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cpu->irq_check = cpu->irq_pending = TRUE; |
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} |
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/* Clear IRQ line */ |
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static void ppc32_vmtest_clear_irq(vm_instance_t *vm,u_int irq) |
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{ |
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cpu_ppc_t *cpu = CPU_PPC32(vm->boot_cpu); |
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cpu->irq_check = cpu->irq_pending = FALSE; |
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} |
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/* Initialize the PPC32 VM test Platform */ |
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int ppc32_vmtest_init_platform(vm_instance_t *vm) |
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{ |
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cpu_ppc_t *cpu0; |
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cpu_gen_t *gen0; |
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/* Create Console and AUX ports */ |
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vm_init_vtty(vm); |
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/* Create a CPU group */ |
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vm->cpu_group = cpu_group_create("System CPU"); |
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/* Initialize the virtual PowerPC processor */ |
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if (!(gen0 = cpu_create(vm,CPU_TYPE_PPC32,0))) { |
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vm_error(vm,"unable to create CPU0!\n"); |
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return(-1); |
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} |
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cpu0 = CPU_PPC32(gen0); |
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/* Enable as PowerPC 405 */ |
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//ppc32_set_pvr(cpu0,PPC32_PVR_405 | 0x0102); |
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/* Add this CPU to the system CPU group */ |
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cpu_group_add(vm->cpu_group,gen0); |
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vm->boot_cpu = gen0; |
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/* Set IRQ vectors */ |
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vm->set_irq = ppc32_vmtest_set_irq; |
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vm->clear_irq = ppc32_vmtest_clear_irq; |
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#if 0 |
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{ |
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vm_obj_t *obj; |
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/* Initialize ROM (as a Flash) */ |
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if (!(obj = dev_flash_init(vm,"rom",0xFF000000,16*1048576))) |
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return(-1); |
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dev_flash_copy_data(obj,0x0F00000,ppc32_microcode,ppc32_microcode_len); |
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} |
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#endif |
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//dev_bootflash_init(vm,"bootflash",0xFF000000,8*1048576); |
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#if 1 |
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/* Initialize ROM */ |
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if (!vm->rom_filename) { |
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/* use embedded ROM */ |
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dev_rom_init(vm,"rom",0xFFF00000,512*1024, |
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ppc32_microcode,ppc32_microcode_len); |
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} else { |
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/* use alternate ROM */ |
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dev_ram_init(vm,"rom",TRUE,TRUE,NULL,FALSE, |
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0xFFF00000,512*1024); |
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} |
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#endif |
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dev_ram_init(vm,"nvram",TRUE,FALSE,NULL,FALSE, |
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0x67c00000,vm->nvram_size*4096); |
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dev_ns16552_init(vm,0xffe00000,0x1000,0,0,vm->vtty_con,vm->vtty_aux); |
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/* Remote emulator control */ |
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dev_remote_control_init(vm,0xf6000000,0x1000); |
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/* Initialize RAM */ |
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vm_ram_init(vm,0x00000000); |
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/* RAM aliasing */ |
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dev_create_ram_alias(vm,"ram_alias","ram",0x80000000,vm->ram_size*1048576); |
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/* Display the device list */ |
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dev_show_list(vm); |
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return(0); |
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} |
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/* Boot the RAW image */ |
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int ppc32_vmtest_boot_raw(vm_instance_t *vm) |
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{ |
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cpu_ppc_t *cpu; |
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if (!vm->boot_cpu) |
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return(-1); |
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/* Suspend CPU activity since we will restart directly from ROM */ |
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vm_suspend(vm); |
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/* Check that CPU activity is really suspended */ |
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if (cpu_group_sync_state(vm->cpu_group) == -1) { |
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vm_error(vm,"unable to sync with system CPUs.\n"); |
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return(-1); |
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} |
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/* Reset the boot CPU */ |
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cpu = CPU_PPC32(vm->boot_cpu); |
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ppc32_reset(cpu); |
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/* Load RAW image */ |
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if (ppc32_load_raw_image(cpu,vm->ios_image,0xFFF00000) < 0) { |
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vm_error(vm,"failed to load RAW image '%s'.\n",vm->ios_image); |
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return(-1); |
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} |
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cpu->ia = 0xFFF00100; |
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cpu->gpr[1] = 0x2000; |
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/* Launch the simulation */ |
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printf("\nPPC32_VMTEST '%s': starting simulation (CPU0 IA=0x%8.8x), " |
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"JIT %sabled.\n", |
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vm->name,cpu->ia,vm->jit_use ? "en":"dis"); |
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vm_log(vm,"PPC32_VMTEST_BOOT", |
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"starting instance (CPU0 IA=0x%8.8x,JIT %s)\n", |
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cpu->ia,vm->jit_use ? "on":"off"); |
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/* Start main CPU */ |
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if (vm->ghost_status != VM_GHOST_RAM_GENERATE) { |
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vm->status = VM_STATUS_RUNNING; |
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cpu_start(vm->boot_cpu); |
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} else { |
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vm->status = VM_STATUS_SHUTDOWN; |
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} |
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return(0); |
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} |
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/* Boot the ELF image */ |
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int ppc32_vmtest_boot_elf(vm_instance_t *vm) |
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{ |
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m_uint32_t rom_entry_point; |
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cpu_ppc_t *cpu; |
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if (!vm->boot_cpu) |
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return(-1); |
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/* Suspend CPU activity since we will restart directly from ROM */ |
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vm_suspend(vm); |
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/* Check that CPU activity is really suspended */ |
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if (cpu_group_sync_state(vm->cpu_group) == -1) { |
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vm_error(vm,"unable to sync with system CPUs.\n"); |
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return(-1); |
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} |
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/* Reset the boot CPU */ |
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cpu = CPU_PPC32(vm->boot_cpu); |
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ppc32_reset(cpu); |
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/* Load ROM (ELF image or embedded) */ |
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cpu = CPU_PPC32(vm->boot_cpu); |
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rom_entry_point = (m_uint32_t)PPC32_ROM_START; |
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if ((vm->rom_filename != NULL) && |
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(ppc32_load_elf_image(cpu,vm->rom_filename,0,&rom_entry_point) < 0)) |
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{ |
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vm_error(vm,"unable to load alternate ROM '%s', " |
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"fallback to embedded ROM.\n\n",vm->rom_filename); |
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vm->rom_filename = NULL; |
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} |
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/* Load ELF image */ |
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if (ppc32_load_elf_image(cpu,vm->ios_image, |
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(vm->ghost_status == VM_GHOST_RAM_USE), |
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&vm->ios_entry_point) < 0) |
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{ |
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vm_error(vm,"failed to load ELF image '%s'.\n",vm->ios_image); |
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return(-1); |
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} |
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/* Launch the simulation */ |
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printf("\nPPC32_VMTEST '%s': starting simulation (CPU0 IA=0x%8.8x), " |
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"JIT %sabled.\n", |
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vm->name,cpu->ia,vm->jit_use ? "en":"dis"); |
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vm_log(vm,"PPC32_VMTEST_BOOT", |
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"starting instance (CPU0 IA=0x%8.8x,JIT %s)\n", |
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cpu->ia,vm->jit_use ? "on":"off"); |
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/* Start main CPU */ |
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if (vm->ghost_status != VM_GHOST_RAM_GENERATE) { |
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vm->status = VM_STATUS_RUNNING; |
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cpu_start(vm->boot_cpu); |
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} else { |
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vm->status = VM_STATUS_SHUTDOWN; |
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} |
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return(0); |
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} |
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/* Initialize a test instance */ |
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int ppc32_vmtest_init_instance(vm_instance_t *vm) |
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{ |
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/* Initialize the test platform */ |
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if (ppc32_vmtest_init_platform(vm) == -1) { |
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vm_error(vm,"unable to initialize the platform hardware.\n"); |
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return(-1); |
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} |
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/* Load BAT registers */ |
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ppc32_load_bat_array(CPU_PPC32(vm->boot_cpu),bat_array); |
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return(ppc32_vmtest_boot_elf(vm)); |
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} |
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/* Stop a test instance */ |
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int ppc32_vmtest_stop_instance(vm_instance_t *vm) |
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{ |
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printf("\nPPC32_VMTEST '%s': stopping simulation.\n",vm->name); |
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vm_log(vm,"PPC32_VMTEST_STOP","stopping simulation.\n"); |
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/* Stop all CPUs */ |
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if (vm->cpu_group != NULL) { |
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vm_stop(vm); |
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if (cpu_group_sync_state(vm->cpu_group) == -1) { |
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vm_error(vm,"unable to sync with system CPUs.\n"); |
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return(-1); |
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} |
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} |
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/* Free resources that were used during execution to emulate hardware */ |
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vm_hardware_shutdown(vm); |
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return(0); |
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} |