+#define V3_Yield() \
+ do { \
+ extern struct v3_os_hooks * os_hooks; \
+ if ((os_hooks) && (os_hooks)->yield_cpu) { \
+ (os_hooks)->yield_cpu(); \
+ } \
+ } while (0) \
+
+
+#define V3_Yield_Timed(usec) \
+ do { \
+ extern struct v3_os_hooks * os_hooks; \
+ if ((os_hooks) && (os_hooks)->yield_cpu_timed) {\
+ (os_hooks)->yield_cpu_timed(usec); \
+ } else { \
+ V3_Yield(); \
+ } \
+ } while (0) \
+
typedef enum v3_vm_class {V3_INVALID_VM, V3_PC_VM, V3_CRAY_VM} v3_vm_class_t;
void v3_yield(struct guest_info * info);
void v3_yield_cond(struct guest_info * info);
+void v3_yield_timed(struct guest_info * info, unsigned int usec);
void v3_print_cond(const char * fmt, ...);
void v3_interrupt_cpu(struct v3_vm_info * vm, int logical_cpu, int vector);
void (*yield_cpu)(void);
+ void (*yield_cpu_timed)(unsigned int usec);
+
void *(*mutex_alloc)(void);
void (*mutex_free)(void * mutex);
void (*mutex_lock)(void * mutex, int must_spin);
void (*mutex_unlock)(void * mutex);
+ void *(*mutex_lock_irqsave)(void * mutex, int must_spin);
+ void (*mutex_unlock_irqrestore)(void * mutex, void *flags);
unsigned int (*get_cpu)(void);
#endif
-#define V3_Yield(addr) \
- do { \
- extern struct v3_os_hooks * os_hooks; \
- if ((os_hooks) && (os_hooks)->yield_cpu) { \
- (os_hooks)->yield_cpu(); \
- } \
- } while (0) \
}
+/*
+ * unconditional cpu yield for a period of time
+ * Otherwise identical to v3_yield
+ */
+void v3_yield_timed(struct guest_info *info, unsigned int usec)
+{
+ V3_Yield_Timed(usec);
+
+ if (info) {
+ info->yield_start_cycle += info->vm_info->yield_cycle_period;
+ }
+}
void v3_print_cond(const char * fmt, ...) {