From: Lei Xia <lxia@northwestern.edu>
Date: Thu, 21 Apr 2011 14:34:48 +0000 (-0500)
Subject: add thread sleep and wakeup to host os hooks
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=a996f792cb40f3451085f9951dd4462d188c84b8;p=palacios-OLD.git

add thread sleep and wakeup to host os hooks
---

diff --git a/palacios/include/palacios/vmm.h b/palacios/include/palacios/vmm.h
index ae4421c..5cb1db1 100644
--- a/palacios/include/palacios/vmm.h
+++ b/palacios/include/palacios/vmm.h
@@ -184,13 +184,33 @@ struct guest_info;
 
 #ifdef CONFIG_MULTITHREAD_OS
 
-#define V3_CREATE_THREAD(fn, arg, name)				\
-    do {							\
+#define V3_CREATE_THREAD(fn, arg, name)	({			\
+	void * thread = NULL;							\
 	extern struct v3_os_hooks * os_hooks;			\
 	if ((os_hooks) && (os_hooks)->start_kernel_thread) {	\
-	    (os_hooks)->start_kernel_thread(fn, arg, name);	\
+	    thread = (os_hooks)->start_kernel_thread(fn, arg, name);	\
 	}							\
-    } while (0)
+	thread;						\
+    })
+
+
+#define V3_THREAD_SLEEP()		\
+    do{							\
+	extern struct v3_os_hooks * os_hooks;			\
+	if ((os_hooks) && (os_hooks)->kernel_thread_sleep) {	\
+	    (os_hooks)->kernel_thread_sleep();	\
+	}							\
+    }while(0)
+
+
+#define V3_THREAD_WAKEUP(thread)		\
+    do{							\
+	extern struct v3_os_hooks * os_hooks;			\
+	if ((os_hooks) && (os_hooks)->kernel_thread_wakeup) {	\
+	    (os_hooks)->kernel_thread_wakeup(thread);	\
+	}							\
+    }while(0)
+
 
 
 #define V3_Call_On_CPU(cpu, fn, arg)    		\
@@ -298,7 +318,9 @@ struct v3_os_hooks {
 
 
 
-    void (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name); 
+    void * (*start_kernel_thread)(int (*fn)(void * arg), void * arg, char * thread_name); 
+    void (*kernel_thread_sleep)(void);
+    void (*kernel_thread_wakeup)(void * thread);
     void (*interrupt_cpu)(struct v3_vm_info * vm, int logical_cpu, int vector);
     void (*call_on_cpu)(int logical_cpu, void (*fn)(void * arg), void * arg);
     void * (*start_thread_on_cpu)(int cpu_id, int (*fn)(void * arg), void * arg, char * thread_name);
diff --git a/palacios/src/devices/Kconfig b/palacios/src/devices/Kconfig
index eb15aca..be4de33 100644
--- a/palacios/src/devices/Kconfig
+++ b/palacios/src/devices/Kconfig
@@ -156,7 +156,7 @@ config LINUX_VIRTIO_VNET
         default n
         depends on PCI && EXPERIMENTAL && VNET
         help
-          Enable the Virtio VNET interface
+          Enable the Virtio VNET interface for Control VM
 
 config DEBUG_LINUX_VIRTIO_VNET
         bool "Virtio VNET Interface Debugging"
@@ -167,11 +167,11 @@ config DEBUG_LINUX_VIRTIO_VNET
 
 
 config VNET_NIC
-        bool "Enable VNET VIrtio NIC Device"
+        bool "Enable VNET Backend Device"
         default n
 	depends on PCI && EXPERIMENTAL && VNET
         help
-          Enable the VNET Virtio backend device
+          Enable the VNET backend device
 
 config DEBUG_VNET_NIC
         bool "VNET NIC Device Debugging"