MdeModulePkg DXE Core: Add Idle event during BootServices WaitForEvent

Signal an Idle event during BootServices WaitForEvent.

Signed-off-by: jljusten
Reviewed-by: mdkinney
Reviewed-by: rsun3

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11841 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 18 insertions, 3 deletions

diff --git a/MdeModulePkg/Core/Dxe/Event/Event.c b/MdeModulePkg/Core/Dxe/Event/Event.c
index 3d15c0c12b..d9fc7586a7 100644
--- a/MdeModulePkg/Core/Dxe/Event/Event.c
+++ b/MdeModulePkg/Core/Dxe/Event/Event.c
@@ -1,7 +1,7 @@
 /** @file

   UEFI Event support functions implemented in this file.

 

-Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>

 This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -87,6 +87,11 @@ UINT32 mEventTable[] = {
   EVT_TIMER | EVT_NOTIFY_WAIT,

 };

 

+///

+/// gIdleLoopEvent - Event which is signalled when the core is idle

+///

+EFI_EVENT       gIdleLoopEvent = NULL;

+

 

 /**

   Enter critical section by acquiring the lock on gEventQueueLock.

@@ -134,6 +139,15 @@ CoreInitializeEventServices (
 

   CoreInitializeTimer ();

 

+  CoreCreateEventEx (

+    EVT_NOTIFY_SIGNAL,

+    TPL_NOTIFY,

+    CoreEmptyCallbackFunction,

+    NULL,

+    &gIdleLoopEventGuid,

+    &gIdleLoopEvent

+    );

+

   return EFI_SUCCESS;

 }

 

@@ -630,9 +644,9 @@ CoreWaitForEvent (
     }

 

     //

-    // This was the location of the Idle loop callback in EFI 1.x reference

-    // code. We don't have that concept in this base at this point.

+    // Signal the Idle event

     //

+    CoreSignalEvent (gIdleLoopEvent);

   }

 }

 

@@ -702,3 +716,4 @@ CoreCloseEvent (
 

   return Status;

 }

+