X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fpalacios-stubs.c;h=8eeeb7dcafa9e8637663e0975b32e24d85b7674d;hb=b1128b2a9d269fefc786c60c26878b372d5e39c1;hp=05789fb2e4eb02366651c46b7e02d1a7302b1f4e;hpb=ed7cae62acb31ddd833c7efb0f6cda1b4915e7cb;p=palacios.git

diff --git a/linux_module/palacios-stubs.c b/linux_module/palacios-stubs.c
index 05789fb..8eeeb7d 100644
--- a/linux_module/palacios-stubs.c
+++ b/linux_module/palacios-stubs.c
@@ -180,7 +180,7 @@ static int lnx_thread_target(void * arg) {
 /**
  * Creates a kernel thread.
  */
-static void 
+static void *
 palacios_start_kernel_thread(
 	int (*fn)		(void * arg),
 	void *			arg,
@@ -192,8 +192,7 @@ palacios_start_kernel_thread(
     thread_info->arg = arg;
     thread_info->name = thread_name;
 
-    kthread_run( lnx_thread_target, thread_info, thread_name );
-    return;
+    return kthread_run( lnx_thread_target, thread_info, thread_name );
 }
 
 
@@ -220,12 +219,37 @@ palacios_start_thread_on_cpu(int cpu_id,
 	return NULL;
     }
 
-    kthread_bind(thread, cpu_id);
+    set_cpus_allowed_ptr(thread, cpumask_of(cpu_id));
     wake_up_process(thread);
 
     return thread;
 }
 
+
+/**
+ * Rebind a kernel thread to the specified CPU
+ * The thread will be running on target CPU on return
+ * non-zero return means failure
+ */
+static int
+palacios_move_thread_to_cpu(int new_cpu_id, 
+			    void * thread_ptr) {
+    struct task_struct * thread = (struct task_struct *)thread_ptr;
+
+    printk("Moving thread (%p) to cpu %d\n", thread, new_cpu_id);
+
+    if (thread == NULL) {
+	thread = current;
+    }
+
+    /*
+     * Bind to the specified CPU.  When this call returns,
+     * the thread should be running on the target CPU.
+     */
+    return set_cpus_allowed_ptr(thread, cpumask_of(new_cpu_id));
+}
+
+
 /**
  * Returns the CPU ID that the caller is running on.
  */
@@ -461,6 +485,7 @@ static struct v3_os_hooks palacios_os_hooks = {
 	.interrupt_cpu		= palacios_interrupt_cpu,
 	.call_on_cpu		= palacios_xcall,
 	.start_thread_on_cpu	= palacios_start_thread_on_cpu,
+	.move_thread_to_cpu = palacios_move_thread_to_cpu,
 };