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_base.h>
24 #include <vnet/vnet_vmm.h>
34 typedef unsigned long vnet_lock_t;
35 typedef void *vnet_intr_flags_t;
38 struct vnet_host_hooks {
39 void *(*thread_start)(int (*fn)(void * arg),
43 void (*thread_sleep)(long timeout);
44 void (*thread_wakeup)(void * thread);
45 void (*thread_stop)(void * thread);
46 int (*thread_should_stop)(void);
48 void *(*timer_create)(unsigned long interval,
49 void (* timer_fun)(void * priv_data),
52 void (*timer_del)(void * timer);
53 void (*timer_start)(void * timer);
54 void (*timer_stop)(void * timer);
55 void (*timer_reset)(void * timer, unsigned long interval);
57 void (*udelay)(unsigned long usecs);
59 /* duplicate part from os_hooks */
60 void (*yield_cpu)(void);
61 void (*print)(const char * format, ...)
62 __attribute__ ((format (printf, 1, 2)));
64 void *(*allocate_pages)(int num_pages, unsigned int alignment);
65 void (*free_pages)(void * page, int num_pages);
67 void *(*malloc)(unsigned int size);
68 void (*free)(void * addr);
70 void *(*paddr_to_vaddr)(void * addr);
71 void *(*vaddr_to_paddr)(void * addr);
73 void *(*mutex_alloc)(void);
74 void (*mutex_free)(void * mutex);
75 void (*mutex_lock)(void * mutex, int must_spin);
76 void (*mutex_unlock)(void * mutex);
77 vnet_intr_flags_t (*mutex_lock_irqsave)(void * mutex, int must_spin);
78 void (*mutex_unlock_irqrestore)(void * mutex, vnet_intr_flags_t flags);
85 extern struct vnet_host_hooks * host_hooks;
88 /* MEMORY ALLOCATE/DEALLOCATE */
90 #define PAGE_SIZE_4KB 4096
93 static inline void * Vnet_AllocPages(int num_pages){
94 if ((host_hooks) && host_hooks->allocate_pages) {
95 return host_hooks->allocate_pages(num_pages, PAGE_SIZE_4KB);
101 static inline void Vnet_FreePages(void * page, int num_pages){
102 if ((host_hooks) && host_hooks->free_pages) {
103 host_hooks->free_pages(page, num_pages);
107 static inline void * Vnet_VAddr(void * addr) {
108 if ((host_hooks) && host_hooks->paddr_to_vaddr){
109 return host_hooks->paddr_to_vaddr(addr);
115 static inline void * Vnet_PAddr(void * addr) {
116 if ((host_hooks) && host_hooks->vaddr_to_paddr) {
117 return host_hooks->vaddr_to_paddr(addr);
123 static inline void * Vnet_Malloc(uint32_t size){
124 if ((host_hooks) && host_hooks->malloc) {
125 return host_hooks->malloc(size);
131 static inline void Vnet_Free(void * addr){
132 if ((host_hooks) && host_hooks->free) {
133 host_hooks->free(addr);
138 static inline void Vnet_Yield(void){
139 if ((host_hooks) && (host_hooks)->yield_cpu) {
140 host_hooks->yield_cpu();
144 /* THREAD FUNCTIONS */
145 struct vnet_thread * vnet_start_thread(int (*func)(void *), void *arg, char * name);
147 static inline void vnet_thread_sleep(long timeout){
148 if((host_hooks) && host_hooks->thread_sleep){
149 host_hooks->thread_sleep(timeout);
153 static inline void vnet_thread_wakeup(struct vnet_thread * thread){
154 if((host_hooks) && host_hooks->thread_wakeup){
155 host_hooks->thread_wakeup(thread->host_thread);
160 static inline void vnet_thread_stop(struct vnet_thread * thread){
161 if((host_hooks) && host_hooks->thread_stop){
162 host_hooks->thread_stop(thread->host_thread);
166 static inline int vnet_thread_should_stop(void){
167 if((host_hooks) && host_hooks->thread_should_stop){
168 return host_hooks->thread_should_stop();
174 static inline void vnet_udelay(unsigned long usecs){
175 if((host_hooks) && host_hooks->udelay){
176 host_hooks->udelay(usecs);
180 /* TIMER FUNCTIONS */
181 /* interval, in jittes */
182 struct vnet_timer * vnet_create_timer(unsigned long interval,
183 void (* timer_fun)(void * priv_data),
186 static inline void vnet_del_timer(struct vnet_timer * timer){
187 if((host_hooks) && host_hooks->timer_del){
188 host_hooks->timer_del(timer->host_timer);
193 static inline void vnet_start_timer(struct vnet_timer * timer){
194 if((host_hooks) && host_hooks->timer_start){
195 host_hooks->timer_start(timer->host_timer);
199 static inline void vnet_stop_timer(struct vnet_timer * timer){
200 if((host_hooks) && host_hooks->timer_stop){
201 host_hooks->timer_stop(timer->host_timer);
205 static inline void vnet_reset_timer(struct vnet_timer * timer,
206 unsigned long new_interval){
207 if((host_hooks) && host_hooks->timer_reset){
208 host_hooks->timer_reset(timer->host_timer, new_interval);
214 #define Vnet_Print(level, fmt, args...) \
216 extern int net_debug; \
217 if(level <= net_debug) { \
218 extern struct vnet_host_hooks * host_hooks; \
219 if ((host_hooks) && (host_hooks)->print) { \
220 (host_hooks)->print((fmt), ##args); \
226 #define Vnet_Debug(fmt, args...) \
228 extern struct vnet_host_hooks * host_hooks; \
229 if ((host_hooks) && (host_hooks)->print) { \
230 (host_hooks)->print((fmt), ##args); \
238 static inline int vnet_lock_init(vnet_lock_t * lock) {
239 if((host_hooks) && host_hooks->mutex_alloc){
240 *lock = (addr_t)(host_hooks->mutex_alloc());
248 static inline void vnet_lock_deinit(vnet_lock_t * lock) {
249 if (host_hooks && (host_hooks->mutex_free)) {
250 host_hooks->mutex_free((void *)*lock);
255 static inline void vnet_lock(vnet_lock_t lock) {
256 if (host_hooks && (host_hooks->mutex_lock)) {
257 host_hooks->mutex_lock((void *)lock,0);
261 static inline void vnet_unlock(vnet_lock_t lock) {
262 if (host_hooks && (host_hooks->mutex_lock)) {
263 host_hooks->mutex_unlock((void *)lock);
267 static inline vnet_intr_flags_t vnet_lock_irqsave(vnet_lock_t lock)
269 if (host_hooks && host_hooks->mutex_lock_irqsave) {
270 return (host_hooks->mutex_lock_irqsave((void *)lock, 1));
277 static inline void vnet_unlock_irqrestore(vnet_lock_t lock, vnet_intr_flags_t irq_state)
279 if (host_hooks && (host_hooks->mutex_unlock_irqrestore)) {
280 host_hooks->mutex_unlock_irqrestore((void *)lock,irq_state);
286 void init_vnet(struct vnet_host_hooks * hooks);
287 void deinit_vnet(void);