stupid typo fix to the stream interface to prevent memory corruption

[palacios.git] / linux_module / vm.c

diff --git a/linux_module/vm.c b/linux_module/vm.c
index 890cb69..1e37587 100644 (file)
--- a/linux_module/vm.c
+++ b/linux_module/vm.c
@@ -127,12 +127,6 @@ static long v3_vm_ioctl(struct file * filp,
     printk("V3 IOCTL %d\n", ioctl);
 
     switch (ioctl) {
-
-       case V3_VM_STOP: {
-           printk("Stopping VM (%s)\n", guest->name);
-           stop_palacios_vm(guest);
-           break;
-       }
        case V3_VM_PAUSE: {
            printk("Pausing VM (%s)\n", guest->name);
            v3_pause_vm(guest->v3_ctx);
@@ -143,6 +137,22 @@ static long v3_vm_ioctl(struct file * filp,
            v3_continue_vm(guest->v3_ctx);
            break;
        }
+       case V3_VM_MOVE_CORE: {
+           struct v3_core_move_cmd cmd;
+           void __user * argp = (void __user *)arg;
+
+           memset(&cmd, 0, sizeof(struct v3_core_move_cmd));
+           
+           if (copy_from_user(&cmd, argp, sizeof(struct v3_core_move_cmd))) {
+               printk("copy from user error getting migrate command...\n");
+               return -EFAULT;
+           }
+       
+           printk("moving guest %s vcore %d to CPU %d\n", guest->name, cmd.vcore_id, cmd.pcore_id);
+
+           v3_move_vm_core(guest->v3_ctx, cmd.vcore_id, cmd.pcore_id);
+       }
+       break;
 
        default: {
            struct vm_ctrl * ctrl = get_ctrl(guest, ioctl);
@@ -264,12 +274,13 @@ int start_palacios_vm(void * arg)  {
 
 int stop_palacios_vm(struct v3_guest * guest) {
 
+
     v3_stop_vm(guest->v3_ctx);
 
     wait_for_completion(&(guest->thread_done));
 
     v3_free_vm(guest->v3_ctx);
-    
+
     device_destroy(v3_class, guest->vm_dev);
 
     cdev_del(&(guest->cdev));