updated stop procedure to handle multiple cores

[palacios.git] / palacios / src / palacios / vmm.c

diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c
index e10c9a3..6bf1a29 100644 (file)
--- a/palacios/src/palacios/vmm.c
+++ b/palacios/src/palacios/vmm.c
@@ -208,7 +208,7 @@ int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
     }
     
     if (vm->num_cores > avail_cores) {
-       PrintError("Attempted to start a VM with too many cores (MAX=%d)\n", MAX_CORES);
+       PrintError("Attempted to start a VM with too many cores (vm->num_cores = %d, avail_cores = %d, MAX=%d)\n", vm->num_cores, avail_cores, MAX_CORES);
        return -1;
     }
 
@@ -269,13 +269,35 @@ int v3_stop_vm(struct v3_vm_info * vm) {
 
     vm->run_state = VM_STOPPED;
 
-
     // force exit all cores via a cross call/IPI
 
-    // Wait for all cores to enter CORE_STOPPED state
 
+    while (1) {
+       int i = 0;
+       int still_running = 0;
+
+       for (i = 0; i < vm->num_cores; i++) {
+           if (vm->cores[i].core_run_state != CORE_STOPPED) {
+               still_running = 1;
+           }
+       }
+
+       if (still_running == 0) {
+           break;
+       }
+       
+       v3_yield(NULL);
+    }
+
+    return 0;
+}
+
+
+int v3_free_vm(struct v3_vm_info * vm) {
     // deinitialize guest (free memory, etc...)
 
+    v3_dev_mgr_deinit(vm);
+
     return 0;
 }