bind launch thread to local core

diff --git a/linux_module/palacios-dev.c b/linux_module/palacios-dev.c
index 60f01ec..f019e18 100644 (file)
--- a/linux_module/palacios-dev.c
+++ b/linux_module/palacios-dev.c
@@ -138,7 +138,25 @@ static long v3_dev_ioctl(struct file * filp,
            init_completion(&(guest->start_done));
            init_completion(&(guest->thread_done));
 
-           kthread_run(start_palacios_vm, guest, guest->name);
+           { 
+               struct task_struct * launch_thread = NULL;
+               // At some point we're going to want to allow the user to specify a CPU mask
+               // But for now, well just launch from the local core, and rely on the global cpu mask
+
+               preempt_disable();
+               launch_thread = kthread_create(start_palacios_vm, guest, guest->name);
+               
+               if (IS_ERR(launch_thread)) {
+                   preempt_enable();
+                   printk("Palacios error creating launch thread for vm (%s)\n", guest->name);
+                   return -EFAULT;
+               }
+
+               kthread_bind(launch_thread, smp_processor_id());
+               preempt_enable();
+
+               wake_up_process(launch_thread);
+           }
 
            wait_for_completion(&(guest->start_done));