2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2011, Lei Xia <lxia@northwestern.edu>
11 * Copyright (c) 2011, The V3VEE Project <http://www.v3vee.org>
12 * All rights reserved.
14 * Author: Lei Xia <lxia@northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
20 #ifndef __VNET_HOST_H__
21 #define __VNET_HOST_H__
23 #include <vnet/vnet_vmm.h>
33 typedef unsigned long vnet_lock_t;
37 struct vnet_host_hooks {
38 void *(*thread_start)(int (*fn)(void * arg),
42 void (*thread_sleep)(long timeout);
43 void (*thread_wakeup)(void * thread);
44 void (*thread_stop)(void * thread);
45 int (*thread_should_stop)(void);
47 void *(*timer_create)(unsigned long interval,
48 void (* timer_fun)(void * priv_data),
51 void (*timer_del)(void * timer);
52 void (*timer_start)(void * timer);
53 void (*timer_stop)(void * timer);
54 void (*timer_reset)(void * timer, unsigned long interval);
56 void (*udelay)(unsigned long usecs);
58 /* duplicate part from os_hooks */
59 void (*yield_cpu)(void);
60 void (*print)(const char * format, ...)
61 __attribute__ ((format (printf, 1, 2)));
63 void *(*allocate_pages)(int num_pages, unsigned int alignment);
64 void (*free_pages)(void * page, int num_pages);
66 void *(*malloc)(unsigned int size);
67 void (*free)(void * addr);
69 void *(*paddr_to_vaddr)(void * addr);
70 void *(*vaddr_to_paddr)(void * addr);
72 void *(*mutex_alloc)(void);
73 void (*mutex_free)(void * mutex);
74 void (*mutex_lock)(void * mutex, int must_spin);
75 void (*mutex_unlock)(void * mutex);
82 extern struct vnet_host_hooks * host_hooks;
85 /* MEMORY ALLOCATE/DEALLOCATE */
87 #define PAGE_SIZE_4KB 4096
90 static inline void * Vnet_AllocPages(int num_pages){
91 if ((host_hooks) && host_hooks->allocate_pages) {
92 return host_hooks->allocate_pages(num_pages, PAGE_SIZE_4KB);
98 static inline void Vnet_FreePages(void * page, int num_pages){
99 if ((host_hooks) && host_hooks->free_pages) {
100 host_hooks->free_pages(page, num_pages);
104 static inline void * Vnet_VAddr(void * addr) {
105 if ((host_hooks) && host_hooks->paddr_to_vaddr){
106 return host_hooks->paddr_to_vaddr(addr);
112 static inline void * Vnet_PAddr(void * addr) {
113 if ((host_hooks) && host_hooks->vaddr_to_paddr) {
114 return host_hooks->vaddr_to_paddr(addr);
120 static inline void * Vnet_Malloc(uint32_t size){
121 if ((host_hooks) && host_hooks->malloc) {
122 return host_hooks->malloc(size);
128 static inline void Vnet_Free(void * addr){
129 if ((host_hooks) && host_hooks->free) {
130 host_hooks->free(addr);
135 static inline void Vnet_Yield(void){
136 if ((host_hooks) && (host_hooks)->yield_cpu) {
137 host_hooks->yield_cpu();
141 /* THREAD FUNCTIONS */
142 struct vnet_thread * vnet_start_thread(int (*func)(void *),
143 void * arg, char * name);
145 static inline void vnet_thread_sleep(long timeout){
146 if((host_hooks) && host_hooks->thread_sleep){
147 host_hooks->thread_sleep(timeout);
151 static inline void vnet_thread_wakeup(struct vnet_thread * thread){
152 if((host_hooks) && host_hooks->thread_wakeup){
153 host_hooks->thread_wakeup(thread->host_thread);
158 static inline void vnet_thread_stop(struct vnet_thread * thread){
159 if((host_hooks) && host_hooks->thread_stop){
160 host_hooks->thread_stop(thread->host_thread);
164 static inline int vnet_thread_should_stop(void){
165 if((host_hooks) && host_hooks->thread_should_stop){
166 return host_hooks->thread_should_stop();
172 static inline void vnet_udelay(unsigned long usecs){
173 if((host_hooks) && host_hooks->udelay){
174 host_hooks->udelay(usecs);
178 /* TIMER FUNCTIONS */
179 /* interval, in jittes */
180 struct vnet_timer * vnet_create_timer(unsigned long interval,
181 void (* timer_fun)(void * priv_data),
184 static inline void vnet_del_timer(struct vnet_timer * timer){
185 if((host_hooks) && host_hooks->timer_del){
186 host_hooks->timer_del(timer->host_timer);
191 static inline void vnet_start_timer(struct vnet_timer * timer){
192 if((host_hooks) && host_hooks->timer_start){
193 host_hooks->timer_start(timer->host_timer);
197 static inline void vnet_stop_timer(struct vnet_timer * timer){
198 if((host_hooks) && host_hooks->timer_stop){
199 host_hooks->timer_stop(timer->host_timer);
203 static inline void vnet_reset_timer(struct vnet_timer * timer,
204 unsigned long new_interval){
205 if((host_hooks) && host_hooks->timer_reset){
206 host_hooks->timer_reset(timer->host_timer, new_interval);
212 #define Vnet_Print(level, fmt, args...) \
214 extern int vnet_debug; \
215 if(level <= vnet_debug) { \
216 extern struct vnet_host_hooks * host_hooks; \
217 if ((host_hooks) && (host_hooks)->print) { \
218 (host_hooks)->print((fmt), ##args); \
224 #define Vnet_Debug(fmt, args...) \
226 extern struct vnet_host_hooks * host_hooks; \
227 if ((host_hooks) && (host_hooks)->print) { \
228 (host_hooks)->print((fmt), ##args); \
236 int vnet_lock_init(vnet_lock_t * lock);
238 static inline void vnet_lock_deinit(vnet_lock_t * lock) {
239 host_hooks->mutex_free((void *)*lock);
243 static inline void vnet_lock(vnet_lock_t lock) {
244 host_hooks->mutex_lock((void *)lock, 0);
247 static inline void vnet_unlock(vnet_lock_t lock) {
248 host_hooks->mutex_unlock((void *)lock);
251 static inline unsigned long vnet_lock_irqsave(vnet_lock_t lock) {
252 //addr_t irq_state = v3_irq_save();
253 host_hooks->mutex_lock((void *)lock, 1);
258 static inline void vnet_unlock_irqrestore(vnet_lock_t lock, addr_t irq_state) {
259 host_hooks->mutex_unlock((void *)lock);
260 //v3_irq_restore(irq_state);
266 void init_vnet(struct vnet_host_hooks * hooks);