uint32_t avail_cores = 0;
int vcore_id = 0;
+
+ if (vm->run_state != VM_STOPPED) {
+ PrintError("VM has already been launched (state=%d)\n", (int)vm->run_state);
+ return -1;
+ }
+
/// CHECK IF WE ARE MULTICORE ENABLED....
V3_Print("V3 -- Starting VM (%u cores)\n", vm->num_cores);
break;
}
- v3_yield(NULL);
+ v3_yield(NULL,-1);
}
V3_Print("VM stopped. Returning\n");
V3_Print("Simulation callback activated (guest_rip=%p)\n", (void *)core->rip);
while (v3_bitmap_check(timeout_map, core->vcpu_id) == 1) {
- v3_yield(NULL);
+ v3_yield(NULL,-1);
}
return 0;
break;
}
- v3_yield(NULL);
+ v3_yield(NULL,-1);
}
int v3_load_vm(struct v3_vm_info * vm, char * store, char * url) {
return v3_chkpt_load_vm(vm, store, url);
}
+
+#ifdef V3_CONFIG_LIVE_MIGRATION
+int v3_send_vm(struct v3_vm_info * vm, char * store, char * url) {
+ return v3_chkpt_send_vm(vm, store, url);
+}
+
+
+int v3_receive_vm(struct v3_vm_info * vm, char * store, char * url) {
+ return v3_chkpt_receive_vm(vm, store, url);
+}
+#endif
+
#endif
#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) \
-void v3_yield_cond(struct guest_info * info) {
+void v3_yield_cond(struct guest_info * info, int usec) {
uint64_t cur_cycle;
cur_cycle = v3_get_host_time(&info->time_state);
// (void *)cur_cycle, (void *)info->yield_start_cycle,
// (void *)info->yield_cycle_period);
- info->yield_start_cycle += info->vm_info->yield_cycle_period;
- V3_Yield();
+ if (usec < 0) {
+ V3_Yield();
+ } else {
+ V3_Yield_Timed(usec);
+ }
+
+ info->yield_start_cycle += info->vm_info->yield_cycle_period;
}
}
* unconditional cpu yield
* if the yielding thread is a guest context, the guest quantum is reset on resumption
* Non guest context threads should call this function with a NULL argument
- */
-void v3_yield(struct guest_info * info) {
- V3_Yield();
+ *
+ * usec <0 => the non-timed yield is used
+ * usec >=0 => the timed yield is used, which also usually implies interruptible
+ */
+void v3_yield(struct guest_info * info, int usec) {
+ if (usec < 0) {
+ V3_Yield();
+ } else {
+ V3_Yield_Timed(usec);
+ }
if (info) {
- info->yield_start_cycle = v3_get_host_time(&info->time_state);
+ info->yield_start_cycle += info->vm_info->yield_cycle_period;
}
}