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/* |
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* Cisco router simulation platform. |
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* Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr) |
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* |
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* Virtual Machines. |
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*/ |
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#ifndef __VM_H__ |
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#define __VM_H__ |
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#include <pthread.h> |
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#include "dynamips.h" |
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#include "memory.h" |
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#include "cpu.h" |
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#include "dev_vtty.h" |
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#define VM_PAGE_SHIFT 12 |
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#define VM_PAGE_SIZE (1 << VM_PAGE_SHIFT) |
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#define VM_PAGE_IMASK (VM_PAGE_SIZE - 1) |
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#define VM_PAGE_MASK (~(VM_PAGE_IMASK)) |
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/* Number of pages in chunk area */ |
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#define VM_CHUNK_AREA_SIZE 256 |
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/* VM memory chunk */ |
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typedef struct vm_chunk vm_chunk_t; |
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struct vm_chunk { |
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void *area; |
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u_int page_alloc,page_total; |
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vm_chunk_t *next; |
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}; |
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/* VM ghost pool entry */ |
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typedef struct vm_ghost_image vm_ghost_image_t; |
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struct vm_ghost_image { |
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char *filename; |
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u_int ref_count; |
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int fd; |
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off_t file_size; |
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u_char *area_ptr; |
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vm_ghost_image_t *next; |
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}; |
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/* Maximum number of devices per VM */ |
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#define VM_DEVICE_MAX (1 << 6) |
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/* Size of the PCI bus pool */ |
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#define VM_PCI_POOL_SIZE 32 |
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/* VM instance status */ |
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enum { |
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VM_STATUS_HALTED = 0, /* VM is halted and no HW resources are used */ |
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VM_STATUS_SHUTDOWN, /* Shutdown procedure engaged */ |
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VM_STATUS_RUNNING, /* VM is running */ |
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VM_STATUS_SUSPENDED, /* VM is suspended */ |
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}; |
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/* VM types */ |
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enum { |
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VM_TYPE_C7200 = 0, |
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VM_TYPE_C3600, |
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VM_TYPE_C2691, |
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VM_TYPE_C3725, |
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VM_TYPE_C3745, |
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VM_TYPE_C2600, |
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VM_TYPE_MSFC1, |
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VM_TYPE_PPC32_TEST, |
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}; |
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/* Ghost RAM status */ |
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enum { |
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VM_GHOST_RAM_NONE = 0, |
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VM_GHOST_RAM_GENERATE, |
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VM_GHOST_RAM_USE, |
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}; |
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/* Timer IRQ check interval */ |
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#define VM_TIMER_IRQ_CHECK_ITV 1000 |
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/* forward declarations */ |
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typedef struct vm_obj vm_obj_t; |
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/* Shutdown function prototype for an object */ |
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typedef void *(*vm_shutdown_t)(vm_instance_t *vm,void *data); |
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/* VM object, used to keep track of devices and various things */ |
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struct vm_obj { |
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char *name; |
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void *data; |
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struct vm_obj *next,**pprev; |
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vm_shutdown_t shutdown; |
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}; |
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/* VM instance */ |
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struct vm_instance { |
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char *name; |
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int type; /* C7200, C3600, ... */ |
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int status; /* Instance status */ |
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int instance_id; /* Instance Identifier */ |
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char *lock_file; /* Lock file */ |
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char *log_file; /* Log filename */ |
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int log_file_enabled; /* Logging enabled */ |
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u_int ram_size,rom_size; /* RAM and ROM size in Mb */ |
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u_int iomem_size; /* IOMEM size in Mb */ |
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u_int nvram_size; /* NVRAM size in Kb */ |
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u_int pcmcia_disk_size[2]; /* PCMCIA disk0 and disk1 sizes (in Mb) */ |
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u_int conf_reg,conf_reg_setup; /* Config register */ |
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u_int clock_divisor; /* Clock Divisor (see cp0.c) */ |
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u_int ram_mmap; /* Memory-mapped RAM ? */ |
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u_int restart_ios; /* Restart IOS on reload ? */ |
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u_int elf_machine_id; /* ELF machine identifier */ |
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u_int exec_area_size; /* Size of execution area for CPU */ |
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m_uint32_t ios_entry_point; /* IOS entry point */ |
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char *ios_image; /* IOS image filename */ |
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char *ios_config; /* IOS configuration file */ |
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char *rom_filename; /* ROM filename */ |
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char *sym_filename; /* Symbol filename */ |
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FILE *lock_fd,*log_fd; /* Lock/Log file descriptors */ |
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int debug_level; /* Debugging Level */ |
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int jit_use; /* CPUs use JIT */ |
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int sparse_mem; /* Use sparse virtual memory */ |
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/* Memory chunks */ |
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vm_chunk_t *chunks; |
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/* Basic hardware: system CPU, PCI busses and PCI I/O space */ |
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cpu_group_t *cpu_group; |
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cpu_gen_t *boot_cpu; |
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struct pci_bus *pci_bus[2]; |
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struct pci_bus *pci_bus_pool[VM_PCI_POOL_SIZE]; |
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struct pci_io_data *pci_io_space; |
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/* Memory mapped devices */ |
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struct vdevice *dev_list; |
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struct vdevice *dev_array[VM_DEVICE_MAX]; |
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/* IRQ routing */ |
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void (*set_irq)(vm_instance_t *vm,u_int irq); |
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void (*clear_irq)(vm_instance_t *vm,u_int irq); |
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/* Filename for ghosted RAM */ |
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char *ghost_ram_filename; |
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/* Ghost RAM image handling */ |
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int ghost_status; |
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/* Timer IRQ interval check */ |
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u_int timer_irq_check_itv; |
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/* "idling" pointer counter */ |
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m_uint64_t idle_pc; |
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/* JIT block direct jumps */ |
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int exec_blk_direct_jump; |
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/* IRQ idling preemption */ |
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u_int irq_idle_preempt[256]; |
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/* Console and AUX port VTTY type and parameters */ |
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int vtty_con_type,vtty_aux_type; |
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int vtty_con_tcp_port,vtty_aux_tcp_port; |
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vtty_serial_option_t vtty_con_serial_option,vtty_aux_serial_option; |
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/* Virtual TTY for Console and AUX ports */ |
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vtty_t *vtty_con,*vtty_aux; |
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/* Space reserved in NVRAM by ROM monitor */ |
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u_int nvram_rom_space; |
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/* Extract and push IOS configuration */ |
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ssize_t (*nvram_extract_config)(vm_instance_t *vm,char **buffer); |
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int (*nvram_push_config)(vm_instance_t *vm,char *buffer,size_t len); |
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/* Chassis cookie (for c2600 and maybe other routers) */ |
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m_uint16_t chassis_cookie[64]; |
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/* Specific hardware data */ |
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void *hw_data; |
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/* VM objects */ |
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struct vm_obj *vm_object_list; |
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}; |
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#define VM_C7200(vm) ((c7200_t *)vm->hw_data) |
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#define VM_C3600(vm) ((c3600_t *)vm->hw_data) |
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#define VM_C2691(vm) ((c2691_t *)vm->hw_data) |
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#define VM_C3725(vm) ((c3725_t *)vm->hw_data) |
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#define VM_C3745(vm) ((c3745_t *)vm->hw_data) |
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#define VM_C2600(vm) ((c2600_t *)vm->hw_data) |
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#define VM_MSFC1(vm) ((msfc1_t *)vm->hw_data) |
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extern int vm_file_naming_type; |
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/* Set an IRQ for a VM */ |
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static inline void vm_set_irq(vm_instance_t *vm,u_int irq) |
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{ |
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if (vm->set_irq != NULL) |
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vm->set_irq(vm,irq); |
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} |
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/* Clear an IRQ for a VM */ |
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static inline void vm_clear_irq(vm_instance_t *vm,u_int irq) |
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{ |
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if (vm->clear_irq != NULL) |
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vm->clear_irq(vm,irq); |
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} |
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/* Initialize a VM object */ |
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void vm_object_init(vm_obj_t *obj); |
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/* Add a VM object to an instance */ |
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void vm_object_add(vm_instance_t *vm,vm_obj_t *obj); |
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/* Remove a VM object from an instance */ |
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void vm_object_remove(vm_instance_t *vm,vm_obj_t *obj); |
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/* Find an object given its name */ |
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vm_obj_t *vm_object_find(vm_instance_t *vm,char *name); |
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/* Check that a mandatory object is present */ |
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int vm_object_check(vm_instance_t *vm,char *name); |
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/* Dump the object list of an instance */ |
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void vm_object_dump(vm_instance_t *vm); |
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/* Get VM type */ |
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char *vm_get_type(vm_instance_t *vm); |
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/* Get MAC address MSB */ |
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u_int vm_get_mac_addr_msb(vm_instance_t *vm); |
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/* Generate a filename for use by the instance */ |
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char *vm_build_filename(vm_instance_t *vm,char *name); |
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/* Check that an instance lock file doesn't already exist */ |
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int vm_get_lock(vm_instance_t *vm); |
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/* Erase lock file */ |
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void vm_release_lock(vm_instance_t *vm,int erase); |
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/* Log a message */ |
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void vm_flog(vm_instance_t *vm,char *module,char *format,va_list ap); |
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/* Log a message */ |
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void vm_log(vm_instance_t *vm,char *module,char *format,...); |
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/* Close the log file */ |
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int vm_close_log(vm_instance_t *vm); |
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/* Create the log file */ |
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int vm_create_log(vm_instance_t *vm); |
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/* Error message */ |
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void vm_error(vm_instance_t *vm,char *format,...); |
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/* Create a new VM instance */ |
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vm_instance_t *vm_create(char *name,int instance_id,int machine_type); |
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/* Shutdown hardware resources used by a VM */ |
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int vm_hardware_shutdown(vm_instance_t *vm); |
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/* Free resources used by a VM */ |
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void vm_free(vm_instance_t *vm); |
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/* Get an instance given a name */ |
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vm_instance_t *vm_acquire(char *name); |
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/* Release a VM (decrement reference count) */ |
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int vm_release(vm_instance_t *vm); |
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/* Initialize RAM */ |
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int vm_ram_init(vm_instance_t *vm,m_uint64_t paddr); |
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/* Initialize VTTY */ |
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int vm_init_vtty(vm_instance_t *vm); |
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/* Delete VTTY */ |
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void vm_delete_vtty(vm_instance_t *vm); |
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/* Bind a device to a virtual machine */ |
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int vm_bind_device(vm_instance_t *vm,struct vdevice *dev); |
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/* Unbind a device from a virtual machine */ |
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int vm_unbind_device(vm_instance_t *vm,struct vdevice *dev); |
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/* Map a device at the specified physical address */ |
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int vm_map_device(vm_instance_t *vm,struct vdevice *dev,m_uint64_t base_addr); |
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/* Set an IRQ for a VM */ |
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void vm_set_irq(vm_instance_t *vm,u_int irq); |
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/* Clear an IRQ for a VM */ |
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void vm_clear_irq(vm_instance_t *vm,u_int irq); |
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/* Suspend a VM instance */ |
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int vm_suspend(vm_instance_t *vm); |
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/* Resume a VM instance */ |
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int vm_resume(vm_instance_t *vm); |
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/* Stop an instance */ |
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int vm_stop(vm_instance_t *vm); |
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/* Monitor an instance periodically */ |
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void vm_monitor(vm_instance_t *vm); |
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/* Allocate an host page */ |
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void *vm_alloc_host_page(vm_instance_t *vm); |
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/* Free an host page */ |
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void vm_free_host_page(vm_instance_t *vm,void *ptr); |
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/* Get a ghost image */ |
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int vm_ghost_image_get(char *filename,u_char **ptr,int *fd); |
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/* Release a ghost image */ |
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int vm_ghost_image_release(int fd); |
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/* Open a VM file and map it in memory */ |
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int vm_mmap_open_file(vm_instance_t *vm,char *name, |
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u_char **ptr,off_t *fsize); |
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/* Open/Create a VM file and map it in memory */ |
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int vm_mmap_create_file(vm_instance_t *vm,char *name,size_t len,u_char **ptr); |
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/* Close a memory mapped file */ |
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int vm_mmap_close_file(int fd,u_char *ptr,size_t len); |
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/* Save the Cisco IOS configuration from NVRAM */ |
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int vm_ios_save_config(vm_instance_t *vm); |
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/* Set Cisco IOS image to use */ |
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int vm_ios_set_image(vm_instance_t *vm,char *ios_image); |
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/* Unset a Cisco IOS configuration file */ |
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void vm_ios_unset_config(vm_instance_t *vm); |
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/* Set Cisco IOS configuration file to use */ |
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int vm_ios_set_config(vm_instance_t *vm,char *ios_config); |
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/* Extract IOS configuration from NVRAM and write it to a file */ |
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int vm_nvram_extract_config(vm_instance_t *vm,char *filename); |
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/* Read an IOS configuraton from a file and push it to NVRAM */ |
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int vm_nvram_push_config(vm_instance_t *vm,char *filename); |
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/* Save general VM configuration into the specified file */ |
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void vm_save_config(vm_instance_t *vm,FILE *fd); |
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#endif |