dynamips/trunk/vm.h

/*
 * Cisco router simulation platform.
 * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
 *
 * Virtual Machines.
 */

#ifndef __VM_H__
#define __VM_H__

#include <pthread.h>

#include "dynamips.h"
#include "memory.h"
#include "cpu.h"
#include "dev_vtty.h"

#define VM_PAGE_SHIFT  12
#define VM_PAGE_SIZE   (1 << VM_PAGE_SHIFT)
#define VM_PAGE_IMASK  (VM_PAGE_SIZE - 1)
#define VM_PAGE_MASK   (~(VM_PAGE_IMASK))

/* Number of pages in chunk area */
#define VM_CHUNK_AREA_SIZE  256

/* VM memory chunk */
typedef struct vm_chunk vm_chunk_t;
struct vm_chunk {
   void *area;
   u_int page_alloc,page_total;
   vm_chunk_t *next;
};

/* VM ghost pool entry */
typedef struct vm_ghost_image vm_ghost_image_t;
struct vm_ghost_image {
   char *filename;
   u_int ref_count;
   int fd;
   off_t file_size;
   u_char *area_ptr;
   vm_ghost_image_t *next;
};

/* Maximum number of devices per VM */
#define VM_DEVICE_MAX  (1 << 6)

/* Size of the PCI bus pool */
#define VM_PCI_POOL_SIZE  32

/* VM instance status */
enum {   
   VM_STATUS_HALTED = 0,      /* VM is halted and no HW resources are used */
   VM_STATUS_SHUTDOWN,        /* Shutdown procedure engaged */
   VM_STATUS_RUNNING,         /* VM is running */
   VM_STATUS_SUSPENDED,       /* VM is suspended */
};

/* VM types */
enum {
   VM_TYPE_C7200 = 0,
   VM_TYPE_C3600,
   VM_TYPE_C2691,
   VM_TYPE_C3725,
   VM_TYPE_C3745,
   VM_TYPE_C2600,
   VM_TYPE_MSFC1,
   VM_TYPE_PPC32_TEST,
};

/* Ghost RAM status */
enum {
   VM_GHOST_RAM_NONE = 0,
   VM_GHOST_RAM_GENERATE,
   VM_GHOST_RAM_USE,
};

/* Timer IRQ check interval */
#define VM_TIMER_IRQ_CHECK_ITV  1000

/* forward declarations */
typedef struct vm_obj vm_obj_t;

/* Shutdown function prototype for an object */
typedef void *(*vm_shutdown_t)(vm_instance_t *vm,void *data);

/* VM object, used to keep track of devices and various things */
struct vm_obj {
   char *name;
   void *data;
   struct vm_obj *next,**pprev;
   vm_shutdown_t shutdown;
};

/* VM instance */
struct vm_instance {
   char *name;
   int type;                       /* C7200, C3600, ... */
   int status;                     /* Instance status */
   int instance_id;                /* Instance Identifier */
   char *lock_file;                /* Lock file */
   char *log_file;                 /* Log filename */
   int log_file_enabled;           /* Logging enabled */
   u_int ram_size,rom_size;        /* RAM and ROM size in Mb */
   u_int iomem_size;               /* IOMEM size in Mb */
   u_int nvram_size;               /* NVRAM size in Kb */
   u_int pcmcia_disk_size[2];      /* PCMCIA disk0 and disk1 sizes (in Mb) */
   u_int conf_reg,conf_reg_setup;  /* Config register */
   u_int clock_divisor;            /* Clock Divisor (see cp0.c) */
   u_int ram_mmap;                 /* Memory-mapped RAM ? */
   u_int restart_ios;              /* Restart IOS on reload ? */
   u_int elf_machine_id;           /* ELF machine identifier */
   u_int exec_area_size;           /* Size of execution area for CPU */
   m_uint32_t ios_entry_point;     /* IOS entry point */
   char *ios_image;                /* IOS image filename */
   char *ios_config;               /* IOS configuration file */
   char *rom_filename;             /* ROM filename */
   char *sym_filename;             /* Symbol filename */
   FILE *lock_fd,*log_fd;          /* Lock/Log file descriptors */
   int debug_level;                /* Debugging Level */
   int jit_use;                    /* CPUs use JIT */
   int sparse_mem;                 /* Use sparse virtual memory */

   /* Memory chunks */
   vm_chunk_t *chunks;

   /* Basic hardware: system CPU, PCI busses and PCI I/O space */
   cpu_group_t *cpu_group;
   cpu_gen_t *boot_cpu;
   struct pci_bus *pci_bus[2];
   struct pci_bus *pci_bus_pool[VM_PCI_POOL_SIZE];
   struct pci_io_data *pci_io_space;

   /* Memory mapped devices */
   struct vdevice *dev_list;
   struct vdevice *dev_array[VM_DEVICE_MAX];

   /* IRQ routing */
   void (*set_irq)(vm_instance_t *vm,u_int irq);
   void (*clear_irq)(vm_instance_t *vm,u_int irq);

   /* Filename for ghosted RAM */
   char *ghost_ram_filename;
   
   /* Ghost RAM image handling */
   int ghost_status;

   /* Timer IRQ interval check */
   u_int timer_irq_check_itv;

   /* "idling" pointer counter */
   m_uint64_t idle_pc;

   /* JIT block direct jumps */
   int exec_blk_direct_jump;

   /* IRQ idling preemption */
   u_int irq_idle_preempt[256];

   /* Console and AUX port VTTY type and parameters */
   int vtty_con_type,vtty_aux_type;
   int vtty_con_tcp_port,vtty_aux_tcp_port;
   vtty_serial_option_t vtty_con_serial_option,vtty_aux_serial_option;

   /* Virtual TTY for Console and AUX ports */
   vtty_t *vtty_con,*vtty_aux;

   /* Space reserved in NVRAM by ROM monitor */
   u_int nvram_rom_space;

   /* Extract and push IOS configuration */
   ssize_t (*nvram_extract_config)(vm_instance_t *vm,char **buffer);
   int (*nvram_push_config)(vm_instance_t *vm,char *buffer,size_t len);

   /* Chassis cookie (for c2600 and maybe other routers) */
   m_uint16_t chassis_cookie[64];

   /* Specific hardware data */
   void *hw_data;

   /* VM objects */
   struct vm_obj *vm_object_list;   
};

#define VM_C7200(vm) ((c7200_t *)vm->hw_data)
#define VM_C3600(vm) ((c3600_t *)vm->hw_data)
#define VM_C2691(vm) ((c2691_t *)vm->hw_data)
#define VM_C3725(vm) ((c3725_t *)vm->hw_data)
#define VM_C3745(vm) ((c3745_t *)vm->hw_data)
#define VM_C2600(vm) ((c2600_t *)vm->hw_data)
#define VM_MSFC1(vm) ((msfc1_t *)vm->hw_data)

extern int vm_file_naming_type;

/* Set an IRQ for a VM */
static inline void vm_set_irq(vm_instance_t *vm,u_int irq)
{
   if (vm->set_irq != NULL)
      vm->set_irq(vm,irq);
}

/* Clear an IRQ for a VM */
static inline void vm_clear_irq(vm_instance_t *vm,u_int irq)
{
   if (vm->clear_irq != NULL)
      vm->clear_irq(vm,irq);
}

/* Initialize a VM object */
void vm_object_init(vm_obj_t *obj);

/* Add a VM object to an instance */
void vm_object_add(vm_instance_t *vm,vm_obj_t *obj);

/* Remove a VM object from an instance */
void vm_object_remove(vm_instance_t *vm,vm_obj_t *obj);

/* Find an object given its name */
vm_obj_t *vm_object_find(vm_instance_t *vm,char *name);

/* Check that a mandatory object is present */
int vm_object_check(vm_instance_t *vm,char *name);

/* Dump the object list of an instance */
void vm_object_dump(vm_instance_t *vm);

/* Get VM type */
char *vm_get_type(vm_instance_t *vm);

/* Get MAC address MSB */
u_int vm_get_mac_addr_msb(vm_instance_t *vm);

/* Generate a filename for use by the instance */
char *vm_build_filename(vm_instance_t *vm,char *name);

/* Check that an instance lock file doesn't already exist */
int vm_get_lock(vm_instance_t *vm);

/* Erase lock file */
void vm_release_lock(vm_instance_t *vm,int erase);

/* Log a message */
void vm_flog(vm_instance_t *vm,char *module,char *format,va_list ap);

/* Log a message */
void vm_log(vm_instance_t *vm,char *module,char *format,...);

/* Close the log file */
int vm_close_log(vm_instance_t *vm);

/* Create the log file */
int vm_create_log(vm_instance_t *vm);

/* Error message */
void vm_error(vm_instance_t *vm,char *format,...);

/* Create a new VM instance */
vm_instance_t *vm_create(char *name,int instance_id,int machine_type);

/* Shutdown hardware resources used by a VM */
int vm_hardware_shutdown(vm_instance_t *vm);

/* Free resources used by a VM */
void vm_free(vm_instance_t *vm);

/* Get an instance given a name */
vm_instance_t *vm_acquire(char *name);

/* Release a VM (decrement reference count) */
int vm_release(vm_instance_t *vm);

/* Initialize RAM */
int vm_ram_init(vm_instance_t *vm,m_uint64_t paddr);

/* Initialize VTTY */
int vm_init_vtty(vm_instance_t *vm);

/* Delete VTTY */
void vm_delete_vtty(vm_instance_t *vm);

/* Bind a device to a virtual machine */
int vm_bind_device(vm_instance_t *vm,struct vdevice *dev);

/* Unbind a device from a virtual machine */
int vm_unbind_device(vm_instance_t *vm,struct vdevice *dev);

/* Map a device at the specified physical address */
int vm_map_device(vm_instance_t *vm,struct vdevice *dev,m_uint64_t base_addr);

/* Set an IRQ for a VM */
void vm_set_irq(vm_instance_t *vm,u_int irq);

/* Clear an IRQ for a VM */
void vm_clear_irq(vm_instance_t *vm,u_int irq);

/* Suspend a VM instance */
int vm_suspend(vm_instance_t *vm);

/* Resume a VM instance */
int vm_resume(vm_instance_t *vm);

/* Stop an instance */
int vm_stop(vm_instance_t *vm);

/* Monitor an instance periodically */
void vm_monitor(vm_instance_t *vm);

/* Allocate an host page */
void *vm_alloc_host_page(vm_instance_t *vm);

/* Free an host page */
void vm_free_host_page(vm_instance_t *vm,void *ptr);

/* Get a ghost image */
int vm_ghost_image_get(char *filename,u_char **ptr,int *fd);

/* Release a ghost image */
int vm_ghost_image_release(int fd);

/* Open a VM file and map it in memory */
int vm_mmap_open_file(vm_instance_t *vm,char *name,
                      u_char **ptr,off_t *fsize);

/* Open/Create a VM file and map it in memory */
int vm_mmap_create_file(vm_instance_t *vm,char *name,size_t len,u_char **ptr);

/* Close a memory mapped file */
int vm_mmap_close_file(int fd,u_char *ptr,size_t len);

/* Save the Cisco IOS configuration from NVRAM */
int vm_ios_save_config(vm_instance_t *vm);

/* Set Cisco IOS image to use */
int vm_ios_set_image(vm_instance_t *vm,char *ios_image);

/* Unset a Cisco IOS configuration file */
void vm_ios_unset_config(vm_instance_t *vm);

/* Set Cisco IOS configuration file to use */
int vm_ios_set_config(vm_instance_t *vm,char *ios_config);

/* Extract IOS configuration from NVRAM and write it to a file */
int vm_nvram_extract_config(vm_instance_t *vm,char *filename);

/* Read an IOS configuraton from a file and push it to NVRAM */
int vm_nvram_push_config(vm_instance_t *vm,char *filename);

/* Save general VM configuration into the specified file */
void vm_save_config(vm_instance_t *vm,FILE *fd);

#endif
1	dpavlin	1	/*
2	dpavlin	7	* Cisco router simulation platform.
3	dpavlin	1	* Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4			*
5			* Virtual Machines.
6			*/
7
8			#ifndef __VM_H__
9			#define __VM_H__
10
11			#include <pthread.h>
12
13			#include "dynamips.h"
14			#include "memory.h"
15			#include "cpu.h"
16			#include "dev_vtty.h"
17
18	dpavlin	7	#define VM_PAGE_SHIFT 12
19			#define VM_PAGE_SIZE (1 << VM_PAGE_SHIFT)
20			#define VM_PAGE_IMASK (VM_PAGE_SIZE - 1)
21			#define VM_PAGE_MASK (~(VM_PAGE_IMASK))
22
23			/* Number of pages in chunk area */
24			#define VM_CHUNK_AREA_SIZE 256
25
26			/* VM memory chunk */
27			typedef struct vm_chunk vm_chunk_t;
28			struct vm_chunk {
29			void *area;
30			u_int page_alloc,page_total;
31			vm_chunk_t *next;
32			};
33
34			/* VM ghost pool entry */
35			typedef struct vm_ghost_image vm_ghost_image_t;
36			struct vm_ghost_image {
37			char *filename;
38			u_int ref_count;
39			int fd;
40			off_t file_size;
41			u_char *area_ptr;
42			vm_ghost_image_t *next;
43			};
44
45			/* Maximum number of devices per VM */
46			#define VM_DEVICE_MAX (1 << 6)
47
48			/* Size of the PCI bus pool */
49	dpavlin	1	#define VM_PCI_POOL_SIZE 32
50
51			/* VM instance status */
52			enum {
53			VM_STATUS_HALTED = 0, /* VM is halted and no HW resources are used */
54			VM_STATUS_SHUTDOWN, /* Shutdown procedure engaged */
55			VM_STATUS_RUNNING, /* VM is running */
56			VM_STATUS_SUSPENDED, /* VM is suspended */
57			};
58
59			/* VM types */
60			enum {
61			VM_TYPE_C7200 = 0,
62			VM_TYPE_C3600,
63	dpavlin	4	VM_TYPE_C2691,
64			VM_TYPE_C3725,
65			VM_TYPE_C3745,
66	dpavlin	7	VM_TYPE_C2600,
67	dpavlin	8	VM_TYPE_MSFC1,
68	dpavlin	7	VM_TYPE_PPC32_TEST,
69	dpavlin	1	};
70
71	dpavlin	4	/* Ghost RAM status */
72			enum {
73			VM_GHOST_RAM_NONE = 0,
74			VM_GHOST_RAM_GENERATE,
75			VM_GHOST_RAM_USE,
76			};
77
78	dpavlin	1	/* Timer IRQ check interval */
79			#define VM_TIMER_IRQ_CHECK_ITV 1000
80
81			/* forward declarations */
82			typedef struct vm_obj vm_obj_t;
83
84			/* Shutdown function prototype for an object */
85			typedef void (vm_shutdown_t)(vm_instance_t vm,void data);
86
87			/* VM object, used to keep track of devices and various things */
88			struct vm_obj {
89			char *name;
90			void *data;
91			struct vm_obj next,*pprev;
92			vm_shutdown_t shutdown;
93			};
94
95			/* VM instance */
96			struct vm_instance {
97			char *name;
98			int type; /* C7200, C3600, ... */
99			int status; /* Instance status */
100			int instance_id; /* Instance Identifier */
101			char lock_file; / Lock file */
102	dpavlin	7	char log_file; / Log filename */
103			int log_file_enabled; /* Logging enabled */
104	dpavlin	1	u_int ram_size,rom_size; /* RAM and ROM size in Mb */
105			u_int iomem_size; /* IOMEM size in Mb */
106			u_int nvram_size; /* NVRAM size in Kb */
107			u_int pcmcia_disk_size[2]; /* PCMCIA disk0 and disk1 sizes (in Mb) */
108			u_int conf_reg,conf_reg_setup; /* Config register */
109			u_int clock_divisor; /* Clock Divisor (see cp0.c) */
110			u_int ram_mmap; /* Memory-mapped RAM ? */
111			u_int restart_ios; /* Restart IOS on reload ? */
112			u_int elf_machine_id; /* ELF machine identifier */
113			u_int exec_area_size; /* Size of execution area for CPU */
114			m_uint32_t ios_entry_point; /* IOS entry point */
115			char ios_image; / IOS image filename */
116			char ios_config; / IOS configuration file */
117			char rom_filename; / ROM filename */
118			char sym_filename; / Symbol filename */
119			FILE lock_fd,log_fd; /* Lock/Log file descriptors */
120			int debug_level; /* Debugging Level */
121			int jit_use; /* CPUs use JIT */
122	dpavlin	7	int sparse_mem; /* Use sparse virtual memory */
123	dpavlin	1
124	dpavlin	7	/* Memory chunks */
125			vm_chunk_t *chunks;
126
127	dpavlin	1	/* Basic hardware: system CPU, PCI busses and PCI I/O space */
128			cpu_group_t *cpu_group;
129	dpavlin	7	cpu_gen_t *boot_cpu;
130	dpavlin	1	struct pci_bus *pci_bus[2];
131			struct pci_bus *pci_bus_pool[VM_PCI_POOL_SIZE];
132			struct pci_io_data *pci_io_space;
133
134			/* Memory mapped devices */
135			struct vdevice *dev_list;
136	dpavlin	7	struct vdevice *dev_array[VM_DEVICE_MAX];
137	dpavlin	1
138	dpavlin	7	/* IRQ routing */
139			void (set_irq)(vm_instance_t vm,u_int irq);
140			void (clear_irq)(vm_instance_t vm,u_int irq);
141
142	dpavlin	4	/* Filename for ghosted RAM */
143			char *ghost_ram_filename;
144
145			/* Ghost RAM image handling */
146			int ghost_status;
147
148	dpavlin	8	/* Timer IRQ interval check */
149			u_int timer_irq_check_itv;
150
151	dpavlin	1	/* "idling" pointer counter */
152			m_uint64_t idle_pc;
153
154	dpavlin	8	/* JIT block direct jumps */
155			int exec_blk_direct_jump;
156	dpavlin	1
157	dpavlin	8	/* IRQ idling preemption */
158			u_int irq_idle_preempt[256];
159
160	dpavlin	1	/* Console and AUX port VTTY type and parameters */
161			int vtty_con_type,vtty_aux_type;
162			int vtty_con_tcp_port,vtty_aux_tcp_port;
163			vtty_serial_option_t vtty_con_serial_option,vtty_aux_serial_option;
164
165			/* Virtual TTY for Console and AUX ports */
166			vtty_t vtty_con,vtty_aux;
167
168			/* Space reserved in NVRAM by ROM monitor */
169			u_int nvram_rom_space;
170
171			/* Extract and push IOS configuration */
172			ssize_t (nvram_extract_config)(vm_instance_t vm,char **buffer);
173			int (nvram_push_config)(vm_instance_t vm,char *buffer,size_t len);
174
175	dpavlin	8	/* Chassis cookie (for c2600 and maybe other routers) */
176	dpavlin	7	m_uint16_t chassis_cookie[64];
177
178	dpavlin	1	/* Specific hardware data */
179			void *hw_data;
180
181			/* VM objects */
182			struct vm_obj *vm_object_list;
183			};
184
185			#define VM_C7200(vm) ((c7200_t *)vm->hw_data)
186			#define VM_C3600(vm) ((c3600_t *)vm->hw_data)
187	dpavlin	4	#define VM_C2691(vm) ((c2691_t *)vm->hw_data)
188			#define VM_C3725(vm) ((c3725_t *)vm->hw_data)
189			#define VM_C3745(vm) ((c3745_t *)vm->hw_data)
190	dpavlin	7	#define VM_C2600(vm) ((c2600_t *)vm->hw_data)
191	dpavlin	8	#define VM_MSFC1(vm) ((msfc1_t *)vm->hw_data)
192	dpavlin	1
193			extern int vm_file_naming_type;
194
195	dpavlin	7	/* Set an IRQ for a VM */
196			static inline void vm_set_irq(vm_instance_t *vm,u_int irq)
197			{
198			if (vm->set_irq != NULL)
199			vm->set_irq(vm,irq);
200			}
201
202			/* Clear an IRQ for a VM */
203			static inline void vm_clear_irq(vm_instance_t *vm,u_int irq)
204			{
205			if (vm->clear_irq != NULL)
206			vm->clear_irq(vm,irq);
207			}
208
209	dpavlin	1	/* Initialize a VM object */
210			void vm_object_init(vm_obj_t *obj);
211
212			/* Add a VM object to an instance */
213			void vm_object_add(vm_instance_t vm,vm_obj_t obj);
214
215			/* Remove a VM object from an instance */
216			void vm_object_remove(vm_instance_t vm,vm_obj_t obj);
217
218			/* Find an object given its name */
219			vm_obj_t vm_object_find(vm_instance_t vm,char *name);
220
221			/* Check that a mandatory object is present */
222			int vm_object_check(vm_instance_t vm,char name);
223
224			/* Dump the object list of an instance */
225			void vm_object_dump(vm_instance_t *vm);
226
227			/* Get VM type */
228			char vm_get_type(vm_instance_t vm);
229
230	dpavlin	4	/* Get MAC address MSB */
231			u_int vm_get_mac_addr_msb(vm_instance_t *vm);
232
233	dpavlin	1	/* Generate a filename for use by the instance */
234			char vm_build_filename(vm_instance_t vm,char *name);
235
236			/* Check that an instance lock file doesn't already exist */
237			int vm_get_lock(vm_instance_t *vm);
238
239			/* Erase lock file */
240			void vm_release_lock(vm_instance_t *vm,int erase);
241
242			/* Log a message */
243			void vm_flog(vm_instance_t vm,char module,char *format,va_list ap);
244
245			/* Log a message */
246			void vm_log(vm_instance_t vm,char module,char *format,...);
247
248			/* Close the log file */
249			int vm_close_log(vm_instance_t *vm);
250
251			/* Create the log file */
252			int vm_create_log(vm_instance_t *vm);
253
254			/* Error message */
255			void vm_error(vm_instance_t vm,char format,...);
256
257			/* Create a new VM instance */
258			vm_instance_t vm_create(char name,int instance_id,int machine_type);
259
260			/* Shutdown hardware resources used by a VM */
261			int vm_hardware_shutdown(vm_instance_t *vm);
262
263			/* Free resources used by a VM */
264			void vm_free(vm_instance_t *vm);
265
266			/* Get an instance given a name */
267			vm_instance_t vm_acquire(char name);
268
269			/* Release a VM (decrement reference count) */
270			int vm_release(vm_instance_t *vm);
271
272	dpavlin	4	/* Initialize RAM */
273			int vm_ram_init(vm_instance_t *vm,m_uint64_t paddr);
274
275	dpavlin	1	/* Initialize VTTY */
276			int vm_init_vtty(vm_instance_t *vm);
277
278			/* Delete VTTY */
279			void vm_delete_vtty(vm_instance_t *vm);
280
281			/* Bind a device to a virtual machine */
282			int vm_bind_device(vm_instance_t vm,struct vdevice dev);
283
284			/* Unbind a device from a virtual machine */
285			int vm_unbind_device(vm_instance_t vm,struct vdevice dev);
286
287			/* Map a device at the specified physical address */
288			int vm_map_device(vm_instance_t vm,struct vdevice dev,m_uint64_t base_addr);
289
290			/* Set an IRQ for a VM */
291			void vm_set_irq(vm_instance_t *vm,u_int irq);
292
293			/* Clear an IRQ for a VM */
294			void vm_clear_irq(vm_instance_t *vm,u_int irq);
295
296			/* Suspend a VM instance */
297			int vm_suspend(vm_instance_t *vm);
298
299			/* Resume a VM instance */
300			int vm_resume(vm_instance_t *vm);
301
302			/* Stop an instance */
303			int vm_stop(vm_instance_t *vm);
304
305			/* Monitor an instance periodically */
306			void vm_monitor(vm_instance_t *vm);
307
308	dpavlin	7	/* Allocate an host page */
309			void vm_alloc_host_page(vm_instance_t vm);
310
311			/* Free an host page */
312			void vm_free_host_page(vm_instance_t vm,void ptr);
313
314			/* Get a ghost image */
315			int vm_ghost_image_get(char filename,u_char ptr,int fd);
316
317			/* Release a ghost image */
318			int vm_ghost_image_release(int fd);
319
320	dpavlin	4	/* Open a VM file and map it in memory */
321			int vm_mmap_open_file(vm_instance_t vm,char name,
322			u_char *ptr,off_t fsize);
323
324			/* Open/Create a VM file and map it in memory */
325			int vm_mmap_create_file(vm_instance_t vm,char name,size_t len,u_char **ptr);
326
327			/* Close a memory mapped file */
328			int vm_mmap_close_file(int fd,u_char *ptr,size_t len);
329
330	dpavlin	1	/* Save the Cisco IOS configuration from NVRAM */
331			int vm_ios_save_config(vm_instance_t *vm);
332
333			/* Set Cisco IOS image to use */
334			int vm_ios_set_image(vm_instance_t vm,char ios_image);
335
336			/* Unset a Cisco IOS configuration file */
337			void vm_ios_unset_config(vm_instance_t *vm);
338
339			/* Set Cisco IOS configuration file to use */
340			int vm_ios_set_config(vm_instance_t vm,char ios_config);
341
342			/* Extract IOS configuration from NVRAM and write it to a file */
343			int vm_nvram_extract_config(vm_instance_t vm,char filename);
344
345			/* Read an IOS configuraton from a file and push it to NVRAM */
346			int vm_nvram_push_config(vm_instance_t vm,char filename);
347
348			/* Save general VM configuration into the specified file */
349			void vm_save_config(vm_instance_t vm,FILE fd);
350
351			#endif