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[apple/xnu.git] / iokit / Kernel / IOService.cpp
diff --git a/iokit/Kernel/IOService.cpp b/iokit/Kernel/IOService.cpp
index 6fbc9e75e1b735d55c0f94c8b4b2f70b5b999c84..f083482725d3bd70d3025906102f4eddea5d3765 100644 (file)
--- a/iokit/Kernel/IOService.cpp
+++ b/iokit/Kernel/IOService.cpp
@@ -1,29 +1,37 @@
 /*
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2009 Apple Inc. All rights reserved.
  *
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
  
 #include <IOKit/system.h>
 
 #include <IOKit/IOService.h>
  */
  
 #include <IOKit/system.h>
 
 #include <IOKit/IOService.h>
+#include <libkern/OSDebug.h>
 #include <libkern/c++/OSContainers.h>
 #include <libkern/c++/OSContainers.h>
+#include <libkern/c++/OSKext.h>
 #include <libkern/c++/OSUnserialize.h>
 #include <IOKit/IOCatalogue.h>
 #include <IOKit/IOCommand.h>
 #include <libkern/c++/OSUnserialize.h>
 #include <IOKit/IOCatalogue.h>
 #include <IOKit/IOCommand.h>
@@ -37,14 +45,18 @@
 #include <IOKit/IOBSD.h>
 #include <IOKit/IOUserClient.h>
 #include <IOKit/IOWorkLoop.h>
 #include <IOKit/IOBSD.h>
 #include <IOKit/IOUserClient.h>
 #include <IOKit/IOWorkLoop.h>
+#include <IOKit/IOTimeStamp.h>
 #include <mach/sync_policy.h>
 #include <IOKit/assert.h>
 #include <sys/errno.h>
 
 #include <mach/sync_policy.h>
 #include <IOKit/assert.h>
 #include <sys/errno.h>
 
-//#define LOG kprintf
-#define LOG IOLog
+#include <machine/pal_routines.h>
+
+#define LOG kprintf
+//#define LOG IOLog
 
 #include "IOServicePrivate.h"
 
 #include "IOServicePrivate.h"
+#include "IOKitKernelInternal.h"
 
 // take lockForArbitration before LOCKNOTIFY
 
 
 // take lockForArbitration before LOCKNOTIFY
 
@@ -91,14 +103,23 @@ const OSSymbol *           gIOMatchCategoryKey;
 const OSSymbol *               gIODefaultMatchCategoryKey;
 const OSSymbol *               gIOMatchedServiceCountKey;
 
 const OSSymbol *               gIODefaultMatchCategoryKey;
 const OSSymbol *               gIOMatchedServiceCountKey;
 
+const OSSymbol *               gIOMapperIDKey;
 const OSSymbol *               gIOUserClientClassKey;
 const OSSymbol *               gIOKitDebugKey;
 
 const OSSymbol *               gIOCommandPoolSizeKey;
 
 const OSSymbol *               gIOUserClientClassKey;
 const OSSymbol *               gIOKitDebugKey;
 
 const OSSymbol *               gIOCommandPoolSizeKey;
 
+const OSSymbol *               gIOConsoleLockedKey;
 const OSSymbol *               gIOConsoleUsersKey;
 const OSSymbol *               gIOConsoleSessionUIDKey;
 const OSSymbol *               gIOConsoleUsersKey;
 const OSSymbol *               gIOConsoleSessionUIDKey;
+const OSSymbol *               gIOConsoleSessionAuditIDKey;
 const OSSymbol *               gIOConsoleUsersSeedKey;
 const OSSymbol *               gIOConsoleUsersSeedKey;
+const OSSymbol *               gIOConsoleSessionOnConsoleKey;
+const OSSymbol *               gIOConsoleSessionLoginDoneKey;
+const OSSymbol *               gIOConsoleSessionSecureInputPIDKey;
+const OSSymbol *               gIOConsoleSessionScreenLockedTimeKey;
+
+static clock_sec_t             gIOConsoleLockTime;
 
 static int                     gIOResourceGenerationCount;
 
 
 static int                     gIOResourceGenerationCount;
 
@@ -113,6 +134,7 @@ const OSSymbol *            gIOGeneralInterest;
 const OSSymbol *               gIOBusyInterest;
 const OSSymbol *               gIOAppPowerStateInterest;
 const OSSymbol *               gIOPriorityPowerStateInterest;
 const OSSymbol *               gIOBusyInterest;
 const OSSymbol *               gIOAppPowerStateInterest;
 const OSSymbol *               gIOPriorityPowerStateInterest;
+const OSSymbol *               gIOConsoleSecurityInterest;
 
 static OSDictionary *          gNotifications;
 static IORecursiveLock *       gNotificationLock;
 
 static OSDictionary *          gNotifications;
 static IORecursiveLock *       gNotificationLock;
@@ -138,6 +160,18 @@ static OSArray *           gIOFinalizeList;
 static SInt32                  gIOConsoleUsersSeed;
 static OSData *                        gIOConsoleUsersSeedValue;
 
 static SInt32                  gIOConsoleUsersSeed;
 static OSData *                        gIOConsoleUsersSeedValue;
 
+extern const OSSymbol *                gIODTPHandleKey;
+
+const OSSymbol *               gIOPlatformSleepActionKey;
+const OSSymbol *               gIOPlatformWakeActionKey;
+const OSSymbol *               gIOPlatformQuiesceActionKey;
+const OSSymbol *               gIOPlatformActiveActionKey;
+
+const OSSymbol *               gIOPlatformFunctionHandlerSet;
+
+static IOLock *                        gIOConsoleUsersLock;
+static thread_call_t           gIOConsoleLockCallout;
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #define LOCKREADNOTIFY()       \
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #define LOCKREADNOTIFY()       \
@@ -149,6 +183,8 @@ static OSData *                     gIOConsoleUsersSeedValue;
     IORecursiveLockUnlock( gNotificationLock )
 #define SLEEPNOTIFY(event) \
     IORecursiveLockSleep( gNotificationLock, (void *)(event), THREAD_UNINT )
     IORecursiveLockUnlock( gNotificationLock )
 #define SLEEPNOTIFY(event) \
     IORecursiveLockSleep( gNotificationLock, (void *)(event), THREAD_UNINT )
+#define SLEEPNOTIFYTO(event, deadline) \
+    IORecursiveLockSleepDeadline( gNotificationLock, (void *)(event), deadline, THREAD_UNINT )
 #define WAKEUPNOTIFY(event) \
        IORecursiveLockWakeup( gNotificationLock, (void *)(event), /* wake one */ false )
 
 #define WAKEUPNOTIFY(event) \
        IORecursiveLockWakeup( gNotificationLock, (void *)(event), /* wake one */ false )
 
@@ -189,21 +225,37 @@ static IOLock *     gArbitrationLockQueueLock;
 bool IOService::isInactive( void ) const
     { return( 0 != (kIOServiceInactiveState & getState())); }
 
 bool IOService::isInactive( void ) const
     { return( 0 != (kIOServiceInactiveState & getState())); }
 
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#if __i386__
+#if defined(__i386__) || defined(__x86_64__)
 
 // Only used by the intel implementation of
 
 // Only used by the intel implementation of
-//     IOService::requireMaxBusStall(UInt32 __unused ns)
-struct BusStallEntry
+//     IOService::requireMaxBusStall(UInt32 ns)
+//     IOService::requireMaxInterruptDelay(uint32_t ns)
+struct CpuDelayEntry
 {
 {
-    const IOService *fService;
-    UInt32 fMaxDelay;
+    IOService * fService;
+    UInt32      fMaxDelay;
+    UInt32      fDelayType;
+};
+
+enum {
+    kCpuDelayBusStall, kCpuDelayInterrupt,
+    kCpuNumDelayTypes
 };
 
 };
 
-static OSData *sBusStall     = OSData::withCapacity(8 * sizeof(BusStallEntry));
-static IOLock *sBusStallLock = IOLockAlloc();
-#endif /* __i386__ */
+static OSData          *sCpuDelayData = OSData::withCapacity(8 * sizeof(CpuDelayEntry));
+static IORecursiveLock *sCpuDelayLock = IORecursiveLockAlloc();
+static OSArray         *sCpuLatencyHandlers[kCpuNumDelayTypes];
+const OSSymbol         *sCPULatencyFunctionName[kCpuNumDelayTypes];
+
+static void
+requireMaxCpuDelay(IOService * service, UInt32 ns, UInt32 delayType);
+static IOReturn
+setLatencyHandler(UInt32 delayType, IOService * target, bool enable);
+
+#endif /* defined(__i386__) || defined(__x86_64__) */
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
@@ -239,6 +291,8 @@ void IOService::initialize( void )
     gIOInterruptSpecifiersKey
        = OSSymbol::withCStringNoCopy("IOInterruptSpecifiers");
 
     gIOInterruptSpecifiersKey
        = OSSymbol::withCStringNoCopy("IOInterruptSpecifiers");
 
+    gIOMapperIDKey = OSSymbol::withCStringNoCopy(kIOMapperIDKey);
+
     gIOKitDebugKey     = OSSymbol::withCStringNoCopy( kIOKitDebugKey );
 
     gIOCommandPoolSizeKey      = OSSymbol::withCStringNoCopy( kIOCommandPoolSizeKey );
     gIOKitDebugKey     = OSSymbol::withCStringNoCopy( kIOKitDebugKey );
 
     gIOCommandPoolSizeKey      = OSSymbol::withCStringNoCopy( kIOCommandPoolSizeKey );
@@ -247,6 +301,7 @@ void IOService::initialize( void )
     gIOBusyInterest            = OSSymbol::withCStringNoCopy( kIOBusyInterest );
     gIOAppPowerStateInterest           = OSSymbol::withCStringNoCopy( kIOAppPowerStateInterest );
     gIOPriorityPowerStateInterest      = OSSymbol::withCStringNoCopy( kIOPriorityPowerStateInterest );
     gIOBusyInterest            = OSSymbol::withCStringNoCopy( kIOBusyInterest );
     gIOAppPowerStateInterest           = OSSymbol::withCStringNoCopy( kIOAppPowerStateInterest );
     gIOPriorityPowerStateInterest      = OSSymbol::withCStringNoCopy( kIOPriorityPowerStateInterest );
+    gIOConsoleSecurityInterest         = OSSymbol::withCStringNoCopy( kIOConsoleSecurityInterest );
 
     gNotifications             = OSDictionary::withCapacity( 1 );
     gIOPublishNotification     = OSSymbol::withCStringNoCopy(
 
     gNotifications             = OSDictionary::withCapacity( 1 );
     gIOPublishNotification     = OSSymbol::withCStringNoCopy(
@@ -261,11 +316,29 @@ void IOService::initialize( void )
                                                 kIOTerminatedNotification );
     gIOServiceKey              = OSSymbol::withCStringNoCopy( kIOServiceClass);
 
                                                 kIOTerminatedNotification );
     gIOServiceKey              = OSSymbol::withCStringNoCopy( kIOServiceClass);
 
+    gIOConsoleLockedKey                = OSSymbol::withCStringNoCopy( kIOConsoleLockedKey);
     gIOConsoleUsersKey         = OSSymbol::withCStringNoCopy( kIOConsoleUsersKey);
     gIOConsoleSessionUIDKey    = OSSymbol::withCStringNoCopy( kIOConsoleSessionUIDKey);
     gIOConsoleUsersKey         = OSSymbol::withCStringNoCopy( kIOConsoleUsersKey);
     gIOConsoleSessionUIDKey    = OSSymbol::withCStringNoCopy( kIOConsoleSessionUIDKey);
-    gIOConsoleUsersSeedKey     = OSSymbol::withCStringNoCopy( kIOConsoleUsersSeedKey);
-    gIOConsoleUsersSeedValue   = OSData::withBytesNoCopy(&gIOConsoleUsersSeed, sizeof(gIOConsoleUsersSeed));
+    gIOConsoleSessionAuditIDKey        = OSSymbol::withCStringNoCopy( kIOConsoleSessionAuditIDKey);
+
+    gIOConsoleUsersSeedKey              = OSSymbol::withCStringNoCopy(kIOConsoleUsersSeedKey);
+    gIOConsoleSessionOnConsoleKey        = OSSymbol::withCStringNoCopy(kIOConsoleSessionOnConsoleKey);
+    gIOConsoleSessionLoginDoneKey        = OSSymbol::withCStringNoCopy(kIOConsoleSessionLoginDoneKey);
+    gIOConsoleSessionSecureInputPIDKey   = OSSymbol::withCStringNoCopy(kIOConsoleSessionSecureInputPIDKey);
+    gIOConsoleSessionScreenLockedTimeKey = OSSymbol::withCStringNoCopy(kIOConsoleSessionScreenLockedTimeKey);
 
 
+    gIOConsoleUsersSeedValue          = OSData::withBytesNoCopy(&gIOConsoleUsersSeed, sizeof(gIOConsoleUsersSeed));
+       
+    gIOPlatformSleepActionKey  = OSSymbol::withCStringNoCopy(kIOPlatformSleepActionKey);
+    gIOPlatformWakeActionKey   = OSSymbol::withCStringNoCopy(kIOPlatformWakeActionKey);
+    gIOPlatformQuiesceActionKey        = OSSymbol::withCStringNoCopy(kIOPlatformQuiesceActionKey);
+    gIOPlatformActiveActionKey = OSSymbol::withCStringNoCopy(kIOPlatformActiveActionKey);
+
+    gIOPlatformFunctionHandlerSet              = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerSet);
+#if defined(__i386__) || defined(__x86_64__)
+    sCPULatencyFunctionName[kCpuDelayBusStall] = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerMaxBusDelay);
+    sCPULatencyFunctionName[kCpuDelayInterrupt]        = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerMaxInterruptDelay);
+#endif
     gNotificationLock          = IORecursiveLockAlloc();
 
     assert( gIOServicePlane && gIODeviceMemoryKey
     gNotificationLock          = IORecursiveLockAlloc();
 
     assert( gIOServicePlane && gIODeviceMemoryKey
@@ -276,6 +349,7 @@ void IOService::initialize( void )
         && gIOPublishNotification && gIOMatchedNotification
         && gIOTerminatedNotification && gIOServiceKey
        && gIOConsoleUsersKey && gIOConsoleSessionUIDKey
         && gIOPublishNotification && gIOMatchedNotification
         && gIOTerminatedNotification && gIOServiceKey
        && gIOConsoleUsersKey && gIOConsoleSessionUIDKey
+    && gIOConsoleSessionOnConsoleKey && gIOConsoleSessionSecureInputPIDKey
        && gIOConsoleUsersSeedKey && gIOConsoleUsersSeedValue);
 
     gJobsLock  = IOLockAlloc();
        && gIOConsoleUsersSeedKey && gIOConsoleUsersSeedValue);
 
     gJobsLock  = IOLockAlloc();
@@ -283,9 +357,16 @@ void IOService::initialize( void )
 
     gIOServiceBusyLock = IOLockAlloc();
 
 
     gIOServiceBusyLock = IOLockAlloc();
 
+    gIOConsoleUsersLock = IOLockAlloc();
+
     err = semaphore_create(kernel_task, &gJobsSemaphore, SYNC_POLICY_FIFO, 0);
 
     err = semaphore_create(kernel_task, &gJobsSemaphore, SYNC_POLICY_FIFO, 0);
 
-    assert( gIOServiceBusyLock && gJobs && gJobsLock && (err == KERN_SUCCESS) );
+    gIOConsoleLockCallout = thread_call_allocate(&IOService::consoleLockTimer, NULL);
+
+    IORegistryEntry::getRegistryRoot()->setProperty(gIOConsoleLockedKey, kOSBooleanTrue);
+
+    assert( gIOServiceBusyLock && gJobs && gJobsLock && gIOConsoleUsersLock
+               && gIOConsoleLockCallout && (err == KERN_SUCCESS) );
 
     gIOResources = IOResources::resources();
     assert( gIOResources );
 
     gIOResources = IOResources::resources();
     assert( gIOResources );
@@ -347,6 +428,7 @@ void IOService::stop( IOService * provider )
 void IOService::free( void )
 {
     requireMaxBusStall(0);
 void IOService::free( void )
 {
     requireMaxBusStall(0);
+    requireMaxInterruptDelay(0);
     if( getPropertyTable())
         unregisterAllInterest();
     PMfree();
     if( getPropertyTable())
         unregisterAllInterest();
     PMfree();
@@ -515,7 +597,6 @@ void IOService::startMatching( IOOptionBits options )
 //                     OSKernelStackRemaining(), getName());
 
     if( needConfig) {
 //                     OSKernelStackRemaining(), getName());
 
     if( needConfig) {
-       prevBusy = _adjustBusy( 1 );
         needWake = (0 != (kIOServiceSyncPubState & __state[1]));
     }
 
         needWake = (0 != (kIOServiceSyncPubState & __state[1]));
     }
 
@@ -528,6 +609,8 @@ void IOService::startMatching( IOOptionBits options )
 
     if( needConfig) {
 
 
     if( needConfig) {
 
+       prevBusy = _adjustBusy( 1 );
+
         if( needWake) {
             IOLockLock( gIOServiceBusyLock );
             thread_wakeup( (event_t) this/*&__state[1]*/ );
         if( needWake) {
             IOLockLock( gIOServiceBusyLock );
             thread_wakeup( (event_t) this/*&__state[1]*/ );
@@ -579,7 +662,7 @@ IOReturn IOService::catalogNewDrivers( OSOrderedSet * newTables )
     while( (table = (OSDictionary *) newTables->getFirstObject())) {
 
        LOCKWRITENOTIFY();
     while( (table = (OSDictionary *) newTables->getFirstObject())) {
 
        LOCKWRITENOTIFY();
-        set = (OSSet *) getExistingServices( table, 
+        set = (OSSet *) copyExistingServices( table, 
                                                kIOServiceRegisteredState,
                                                kIOServiceExistingSet);
        UNLOCKNOTIFY();
                                                kIOServiceRegisteredState,
                                                kIOServiceExistingSet);
        UNLOCKNOTIFY();
@@ -598,7 +681,7 @@ IOReturn IOService::catalogNewDrivers( OSOrderedSet * newTables )
 
 #if IOMATCHDEBUG
        if( getDebugFlags( table ) & kIOLogMatch)
 
 #if IOMATCHDEBUG
        if( getDebugFlags( table ) & kIOLogMatch)
-           LOG("Matching service count = %ld\n", count);
+           LOG("Matching service count = %ld\n", (long)count);
 #endif
        newTables->removeObject(table);
     }
 #endif
        newTables->removeObject(table);
     }
@@ -799,9 +882,23 @@ IOReturn IOService::callPlatformFunction( const OSSymbol * functionName,
                                          void *param3, void *param4 )
 {
   IOReturn  result = kIOReturnUnsupported;
                                          void *param3, void *param4 )
 {
   IOReturn  result = kIOReturnUnsupported;
-  IOService *provider = getProvider();
-  
-  if (provider != 0) {
+  IOService *provider;
+
+  if (gIOPlatformFunctionHandlerSet == functionName)
+  {
+#if defined(__i386__) || defined(__x86_64__)
+    const OSSymbol * functionHandlerName = (const OSSymbol *) param1;
+    IOService *             target              = (IOService *) param2;
+    bool            enable              = (param3 != 0);
+
+    if (sCPULatencyFunctionName[kCpuDelayBusStall] == functionHandlerName)
+       result = setLatencyHandler(kCpuDelayBusStall, target, enable);
+    else if (sCPULatencyFunctionName[kCpuDelayInterrupt] == param1)
+       result = setLatencyHandler(kCpuDelayInterrupt, target, enable);
+#endif /* defined(__i386__) || defined(__x86_64__) */
+  }
+
+  if ((kIOReturnUnsupported == result) && (provider = getProvider())) {
     result = provider->callPlatformFunction(functionName, waitForFunction,
                                            param1, param2, param3, param4);
   }
     result = provider->callPlatformFunction(functionName, waitForFunction,
                                            param1, param2, param3, param4);
   }
@@ -1337,7 +1434,8 @@ void IOService::applyToInterested( const OSSymbol * typeOfInterest,
                                    OSObjectApplierFunction applier,
                                    void * context )
 {
                                    OSObjectApplierFunction applier,
                                    void * context )
 {
-    applyToClients( (IOServiceApplierFunction) applier, context );
+    if (gIOGeneralInterest == typeOfInterest)
+       applyToClients( (IOServiceApplierFunction) applier, context );
     applyToInterestNotifiers(this, typeOfInterest, applier, context);
 }
 
     applyToInterestNotifiers(this, typeOfInterest, applier, context);
 }
 
@@ -1392,6 +1490,7 @@ IONotifier * IOService::registerInterest( const OSSymbol * typeOfInterest,
     if( (typeOfInterest != gIOGeneralInterest)
      && (typeOfInterest != gIOBusyInterest)
      && (typeOfInterest != gIOAppPowerStateInterest)
     if( (typeOfInterest != gIOGeneralInterest)
      && (typeOfInterest != gIOBusyInterest)
      && (typeOfInterest != gIOAppPowerStateInterest)
+     && (typeOfInterest != gIOConsoleSecurityInterest)
      && (typeOfInterest != gIOPriorityPowerStateInterest))
         return( 0 );
 
      && (typeOfInterest != gIOPriorityPowerStateInterest))
         return( 0 );
 
@@ -1463,6 +1562,7 @@ void IOService::unregisterAllInterest( void )
     cleanInterestList( getProperty( gIOBusyInterest ));
     cleanInterestList( getProperty( gIOAppPowerStateInterest ));
     cleanInterestList( getProperty( gIOPriorityPowerStateInterest ));
     cleanInterestList( getProperty( gIOBusyInterest ));
     cleanInterestList( getProperty( gIOAppPowerStateInterest ));
     cleanInterestList( getProperty( gIOPriorityPowerStateInterest ));
+    cleanInterestList( getProperty( gIOConsoleSecurityInterest ));
 }
 
 /*
 }
 
 /*
@@ -1505,7 +1605,7 @@ void _IOServiceInterestNotifier::remove()
     LOCKWRITENOTIFY();
 
     if( queue_next( &chain )) {
     LOCKWRITENOTIFY();
 
     if( queue_next( &chain )) {
-       remqueue( 0, &chain);
+       remqueue(&chain);
        queue_next( &chain) = queue_prev( &chain) = 0;
        release();
     }
        queue_next( &chain) = queue_prev( &chain) = 0;
        release();
     }
@@ -1553,9 +1653,9 @@ void _IOServiceInterestNotifier::enable( bool was )
 
 #define tailQ(o)               setObject(o)
 #define headQ(o)               setObject(0, o)
 
 #define tailQ(o)               setObject(o)
 #define headQ(o)               setObject(0, o)
-#define TLOG(fmt, args...)     { if(kIOLogYield & gIOKitDebug) IOLog(fmt, ## args); }
+#define TLOG(fmt, args...)     { if(kIOLogYield & gIOKitDebug) { IOLog("[%llx] ", thread_tid(current_thread())); IOLog(fmt, ## args); }}
 
 
-inline void _workLoopAction( IOWorkLoop::Action action,
+static void _workLoopAction( IOWorkLoop::Action action,
                              IOService * service,
                              void * p0 = 0, void * p1 = 0,
                              void * p2 = 0, void * p3 = 0 )
                              IOService * service,
                              void * p0 = 0, void * p1 = 0,
                              void * p2 = 0, void * p3 = 0 )
@@ -1589,15 +1689,25 @@ bool IOService::requestTerminate( IOService * provider, IOOptionBits options )
 
 bool IOService::terminatePhase1( IOOptionBits options )
 {
 
 bool IOService::terminatePhase1( IOOptionBits options )
 {
-    IOService *                victim;
-    IOService *                client;
-    OSIterator *       iter;
-    OSArray *          makeInactive;
-    bool               ok;
-    bool               didInactive;
-    bool               startPhase2 = false;
-
-    TLOG("%s::terminatePhase1(%08lx)\n", getName(), options);
+    IOService *         victim;
+    IOService *         client;
+    OSIterator * iter;
+    OSArray *   makeInactive;
+       int          waitResult = THREAD_AWAKENED;
+       bool         wait;
+    bool                ok;
+    bool                didInactive;
+    bool                startPhase2 = false;
+
+    TLOG("%s::terminatePhase1(%08llx)\n", getName(), (long long)options);
+
+    uint64_t regID = getRegistryEntryID();
+    IOServiceTrace(
+       IOSERVICE_TERMINATE_PHASE1,
+       (uintptr_t) regID, 
+       (uintptr_t) (regID >> 32),
+       (uintptr_t) this,
+       (uintptr_t) options);
 
     // -- compat
     if( options & kIOServiceRecursing) {
 
     // -- compat
     if( options & kIOServiceRecursing) {
@@ -1615,16 +1725,38 @@ bool IOService::terminatePhase1( IOOptionBits options )
 
     while( victim ) {
 
 
     while( victim ) {
 
-       didInactive = victim->lockForArbitration( true );
+               didInactive = victim->lockForArbitration( true );
         if( didInactive) {
             didInactive = (0 == (victim->__state[0] & kIOServiceInactiveState));
             if( didInactive) {
                 victim->__state[0] |= kIOServiceInactiveState;
                 victim->__state[0] &= ~(kIOServiceRegisteredState | kIOServiceMatchedState
                                         | kIOServiceFirstPublishState | kIOServiceFirstMatchState);
         if( didInactive) {
             didInactive = (0 == (victim->__state[0] & kIOServiceInactiveState));
             if( didInactive) {
                 victim->__state[0] |= kIOServiceInactiveState;
                 victim->__state[0] &= ~(kIOServiceRegisteredState | kIOServiceMatchedState
                                         | kIOServiceFirstPublishState | kIOServiceFirstMatchState);
+
+                               if (victim == this)
+                                       victim->__state[1] |= kIOServiceTermPhase1State;
+
                 victim->_adjustBusy( 1 );
                 victim->_adjustBusy( 1 );
-            }
-           victim->unlockForArbitration();
+
+            } else if (victim != this) do {
+
+                               IOLockLock(gIOServiceBusyLock);
+                               wait = (victim->__state[1] & kIOServiceTermPhase1State);
+                               if( wait) {
+                                   TLOG("%s::waitPhase1(%s)\n", getName(), victim->getName());
+                                       victim->__state[1] |= kIOServiceTerm1WaiterState;
+                                       victim->unlockForArbitration();
+                                       assert_wait((event_t)&victim->__state[1], THREAD_UNINT);
+                               }
+                               IOLockUnlock(gIOServiceBusyLock);
+                               if( wait) {
+                                       waitResult = thread_block(THREAD_CONTINUE_NULL);
+                                   TLOG("%s::did waitPhase1(%s)\n", getName(), victim->getName());
+                                       victim->lockForArbitration();
+                               }
+                       } while( wait && (waitResult != THREAD_TIMED_OUT));
+
+                       victim->unlockForArbitration();
         }
         if( victim == this)
             startPhase2 = didInactive;
         }
         if( victim == this)
             startPhase2 = didInactive;
@@ -1636,11 +1768,22 @@ bool IOService::terminatePhase1( IOOptionBits options )
             iter = victim->getClientIterator();
             if( iter) {
                 while( (client = (IOService *) iter->getNextObject())) {
             iter = victim->getClientIterator();
             if( iter) {
                 while( (client = (IOService *) iter->getNextObject())) {
-                    TLOG("%s::requestTerminate(%s, %08lx)\n",
-                            client->getName(), victim->getName(), options);
+                    TLOG("%s::requestTerminate(%s, %08llx)\n",
+                            client->getName(), victim->getName(), (long long)options);
                     ok = client->requestTerminate( victim, options );
                     TLOG("%s::requestTerminate(%s, ok = %d)\n",
                             client->getName(), victim->getName(), ok);
                     ok = client->requestTerminate( victim, options );
                     TLOG("%s::requestTerminate(%s, ok = %d)\n",
                             client->getName(), victim->getName(), ok);
+
+                   uint64_t regID1 = client->getRegistryEntryID();
+                   uint64_t regID2 = victim->getRegistryEntryID();
+                   IOServiceTrace(
+                       (ok ? IOSERVICE_TERMINATE_REQUEST_OK
+                          : IOSERVICE_TERMINATE_REQUEST_FAIL),
+                       (uintptr_t) regID1, 
+                       (uintptr_t) (regID1 >> 32),
+                       (uintptr_t) regID2, 
+                       (uintptr_t) (regID2 >> 32));
+
                     if( ok)
                         makeInactive->setObject( client );
                 }
                     if( ok)
                         makeInactive->setObject( client );
                 }
@@ -1658,8 +1801,21 @@ bool IOService::terminatePhase1( IOOptionBits options )
     makeInactive->release();
 
     if( startPhase2)
     makeInactive->release();
 
     if( startPhase2)
-        scheduleTerminatePhase2( options );
+    {
+               lockForArbitration();
+               __state[1] &= ~kIOServiceTermPhase1State;
+               if (kIOServiceTerm1WaiterState & __state[1])
+               {
+                       __state[1] &= ~kIOServiceTerm1WaiterState;
+                       TLOG("%s::wakePhase1\n", getName());
+                       IOLockLock( gIOServiceBusyLock );
+                       thread_wakeup( (event_t) &__state[1]);
+                       IOLockUnlock( gIOServiceBusyLock );
+               }
+               unlockForArbitration();
 
 
+        scheduleTerminatePhase2( options );
+    }
     return( true );
 }
 
     return( true );
 }
 
@@ -1703,8 +1859,8 @@ void IOService::scheduleTerminatePhase2( IOOptionBits options )
                 waitResult = IOLockSleepDeadline( gJobsLock, &gIOTerminateWork,
                                                   deadline, THREAD_UNINT );
                 if( waitResult == THREAD_TIMED_OUT) {
                 waitResult = IOLockSleepDeadline( gJobsLock, &gIOTerminateWork,
                                                   deadline, THREAD_UNINT );
                 if( waitResult == THREAD_TIMED_OUT) {
-                    TLOG("%s::terminate(kIOServiceSynchronous) timeout", getName());
-                               }
+                    IOLog("%s::terminate(kIOServiceSynchronous) timeout\n", getName());
+               }
             }
         } while(gIOTerminateWork || (wait && (waitResult != THREAD_TIMED_OUT)));
 
             }
         } while(gIOTerminateWork || (wait && (waitResult != THREAD_TIMED_OUT)));
 
@@ -1717,7 +1873,7 @@ void IOService::scheduleTerminatePhase2( IOOptionBits options )
         gIOTerminatePhase2List->setObject( this );
         if( 0 == gIOTerminateWork++) {
            if( !gIOTerminateThread)
         gIOTerminatePhase2List->setObject( this );
         if( 0 == gIOTerminateWork++) {
            if( !gIOTerminateThread)
-               gIOTerminateThread = IOCreateThread( &terminateThread, (void *) options );
+               kernel_thread_start(&terminateThread, (void *) options, &gIOTerminateThread);
            else
                IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
        }
            else
                IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
        }
@@ -1728,13 +1884,14 @@ void IOService::scheduleTerminatePhase2( IOOptionBits options )
     release();
 }
 
     release();
 }
 
-void IOService::terminateThread( void * arg )
+void IOService::terminateThread( void * arg, wait_result_t waitResult )
 {
     IOLockLock( gJobsLock );
 
     while (gIOTerminateWork)
 {
     IOLockLock( gJobsLock );
 
     while (gIOTerminateWork)
-       terminateWorker( (IOOptionBits) arg );
+       terminateWorker( (uintptr_t) arg );
 
 
+    thread_deallocate(gIOTerminateThread);
     gIOTerminateThread = 0;
     IOLockWakeup( gJobsLock, (event_t) &gIOTerminateThread, /* one-thread */ false);
 
     gIOTerminateThread = 0;
     IOLockWakeup( gJobsLock, (event_t) &gIOTerminateThread, /* one-thread */ false);
 
@@ -1745,13 +1902,22 @@ void IOService::scheduleStop( IOService * provider )
 {
     TLOG("%s::scheduleStop(%s)\n", getName(), provider->getName());
 
 {
     TLOG("%s::scheduleStop(%s)\n", getName(), provider->getName());
 
+    uint64_t regID1 = getRegistryEntryID();
+    uint64_t regID2 = provider->getRegistryEntryID();
+    IOServiceTrace(
+       IOSERVICE_TERMINATE_SCHEDULE_STOP,
+       (uintptr_t) regID1, 
+       (uintptr_t) (regID1 >> 32),
+       (uintptr_t) regID2, 
+       (uintptr_t) (regID2 >> 32));
+
     IOLockLock( gJobsLock );
     gIOStopList->tailQ( this );
     gIOStopProviderList->tailQ( provider );
 
     if( 0 == gIOTerminateWork++) {
         if( !gIOTerminateThread)
     IOLockLock( gJobsLock );
     gIOStopList->tailQ( this );
     gIOStopProviderList->tailQ( provider );
 
     if( 0 == gIOTerminateWork++) {
         if( !gIOTerminateThread)
-            gIOTerminateThread = IOCreateThread( &terminateThread, (void *) 0 );
+           kernel_thread_start(&terminateThread, (void *) 0, &gIOTerminateThread);
         else
             IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
     }
         else
             IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
     }
@@ -1763,12 +1929,19 @@ void IOService::scheduleFinalize( void )
 {
     TLOG("%s::scheduleFinalize\n", getName());
 
 {
     TLOG("%s::scheduleFinalize\n", getName());
 
+    uint64_t regID1 = getRegistryEntryID();
+    IOServiceTrace(
+       IOSERVICE_TERMINATE_SCHEDULE_FINALIZE,
+       (uintptr_t) regID1, 
+       (uintptr_t) (regID1 >> 32),
+       0, 0);
+
     IOLockLock( gJobsLock );
     gIOFinalizeList->tailQ( this );
 
     if( 0 == gIOTerminateWork++) {
         if( !gIOTerminateThread)
     IOLockLock( gJobsLock );
     gIOFinalizeList->tailQ( this );
 
     if( 0 == gIOTerminateWork++) {
         if( !gIOTerminateThread)
-            gIOTerminateThread = IOCreateThread( &terminateThread, (void *) 0 );
+           kernel_thread_start(&terminateThread, (void *) 0, &gIOTerminateThread);
         else
             IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
     }
         else
             IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
     }
@@ -1803,7 +1976,9 @@ bool IOService::didTerminate( IOService * provider, IOOptionBits options, bool *
 }
 
 void IOService::actionWillTerminate( IOService * victim, IOOptionBits options, 
 }
 
 void IOService::actionWillTerminate( IOService * victim, IOOptionBits options, 
-                                    OSArray * doPhase2List )
+                                    OSArray * doPhase2List,
+                                    void *unused2 __unused,
+                                    void *unused3 __unused  )
 {
     OSIterator * iter;
     IOService *         client;
 {
     OSIterator * iter;
     IOService *         client;
@@ -1812,8 +1987,18 @@ void IOService::actionWillTerminate( IOService * victim, IOOptionBits options,
     iter = victim->getClientIterator();
     if( iter) {
         while( (client = (IOService *) iter->getNextObject())) {
     iter = victim->getClientIterator();
     if( iter) {
         while( (client = (IOService *) iter->getNextObject())) {
-            TLOG("%s::willTerminate(%s, %08lx)\n",
-                    client->getName(), victim->getName(), options);
+            TLOG("%s::willTerminate(%s, %08llx)\n",
+                    client->getName(), victim->getName(), (long long)options);
+
+           uint64_t regID1 = client->getRegistryEntryID();
+           uint64_t regID2 = victim->getRegistryEntryID();
+           IOServiceTrace(
+               IOSERVICE_TERMINATE_WILL,
+               (uintptr_t) regID1, 
+               (uintptr_t) (regID1 >> 32),
+               (uintptr_t) regID2, 
+               (uintptr_t) (regID2 >> 32));
+
             ok = client->willTerminate( victim, options );
             doPhase2List->tailQ( client );
         }
             ok = client->willTerminate( victim, options );
             doPhase2List->tailQ( client );
         }
@@ -1821,7 +2006,9 @@ void IOService::actionWillTerminate( IOService * victim, IOOptionBits options,
     }
 }
 
     }
 }
 
-void IOService::actionDidTerminate( IOService * victim, IOOptionBits options )
+void IOService::actionDidTerminate( IOService * victim, IOOptionBits options,
+                           void *unused1 __unused, void *unused2 __unused,
+                           void *unused3 __unused )
 {
     OSIterator * iter;
     IOService *         client;
 {
     OSIterator * iter;
     IOService *         client;
@@ -1832,9 +2019,20 @@ void IOService::actionDidTerminate( IOService * victim, IOOptionBits options )
     iter = victim->getClientIterator();
     if( iter) {
         while( (client = (IOService *) iter->getNextObject())) {
     iter = victim->getClientIterator();
     if( iter) {
         while( (client = (IOService *) iter->getNextObject())) {
-            TLOG("%s::didTerminate(%s, %08lx)\n",
-                    client->getName(), victim->getName(), options);
+            TLOG("%s::didTerminate(%s, %08llx)\n",
+                    client->getName(), victim->getName(), (long long)options);
             client->didTerminate( victim, options, &defer );
             client->didTerminate( victim, options, &defer );
+
+           uint64_t regID1 = client->getRegistryEntryID();
+           uint64_t regID2 = victim->getRegistryEntryID();
+           IOServiceTrace(
+               (defer ? IOSERVICE_TERMINATE_DID_DEFER
+                      : IOSERVICE_TERMINATE_DID),
+               (uintptr_t) regID1, 
+               (uintptr_t) (regID1 >> 32),
+               (uintptr_t) regID2, 
+               (uintptr_t) (regID2 >> 32));
+
             TLOG("%s::didTerminate(%s, defer %d)\n",
                     client->getName(), victim->getName(), defer);
         }
             TLOG("%s::didTerminate(%s, defer %d)\n",
                     client->getName(), victim->getName(), defer);
         }
@@ -1842,15 +2040,37 @@ void IOService::actionDidTerminate( IOService * victim, IOOptionBits options )
     }
 }
 
     }
 }
 
-void IOService::actionFinalize( IOService * victim, IOOptionBits options )
+void IOService::actionFinalize( IOService * victim, IOOptionBits options,
+                           void *unused1 __unused, void *unused2 __unused,
+                           void *unused3 __unused )
 {
 {
-    TLOG("%s::finalize(%08lx)\n", victim->getName(), options);
+    TLOG("%s::finalize(%08llx)\n", victim->getName(), (long long)options);
+
+    uint64_t regID1 = victim->getRegistryEntryID();
+    IOServiceTrace(
+       IOSERVICE_TERMINATE_FINALIZE,
+       (uintptr_t) regID1, 
+       (uintptr_t) (regID1 >> 32),
+       0, 0);
+
     victim->finalize( options );
 }
 
     victim->finalize( options );
 }
 
-void IOService::actionStop( IOService * provider, IOService * client )
+void IOService::actionStop( IOService * provider, IOService * client,
+                           void *unused1 __unused, void *unused2 __unused,
+                           void *unused3 __unused )
 {
     TLOG("%s::stop(%s)\n", client->getName(), provider->getName());
 {
     TLOG("%s::stop(%s)\n", client->getName(), provider->getName());
+
+    uint64_t regID1 = provider->getRegistryEntryID();
+    uint64_t regID2 = client->getRegistryEntryID();
+    IOServiceTrace(
+       IOSERVICE_TERMINATE_STOP,
+       (uintptr_t) regID1, 
+       (uintptr_t) (regID1 >> 32),
+       (uintptr_t) regID2, 
+       (uintptr_t) (regID2 >> 32));
+
     client->stop( provider );
     if( provider->isOpen( client ))
         provider->close( client );
     client->stop( provider );
     if( provider->isOpen( client ))
         provider->close( client );
@@ -1960,10 +2180,30 @@ void IOService::terminateWorker( IOOptionBits options )
                 if( !provider->isChild( client, gIOServicePlane )) {
                     // may be multiply queued - nop it
                     TLOG("%s::nop stop(%s)\n", client->getName(), provider->getName());
                 if( !provider->isChild( client, gIOServicePlane )) {
                     // may be multiply queued - nop it
                     TLOG("%s::nop stop(%s)\n", client->getName(), provider->getName());
+
+                   uint64_t regID1 = provider->getRegistryEntryID();
+                   uint64_t regID2 = client->getRegistryEntryID();
+                   IOServiceTrace(
+                       IOSERVICE_TERMINATE_STOP_NOP,
+                       (uintptr_t) regID1, 
+                       (uintptr_t) (regID1 >> 32),
+                       (uintptr_t) regID2, 
+                       (uintptr_t) (regID2 >> 32));
+
                 } else {
                 } else {
-                    // not ready for stop if it has clients, skip it
-                    if( (client->__state[1] & kIOServiceTermPhase3State) && client->getClient()) {
+                    // a terminated client is not ready for stop if it has clients, skip it
+                    if( (kIOServiceInactiveState & client->__state[0]) && client->getClient()) {
                         TLOG("%s::defer stop(%s)\n", client->getName(), provider->getName());
                         TLOG("%s::defer stop(%s)\n", client->getName(), provider->getName());
+
+                       uint64_t regID1 = provider->getRegistryEntryID();
+                       uint64_t regID2 = client->getRegistryEntryID();
+                       IOServiceTrace(
+                           IOSERVICE_TERMINATE_STOP_DEFER,
+                           (uintptr_t) regID1, 
+                           (uintptr_t) (regID1 >> 32),
+                           (uintptr_t) regID2, 
+                           (uintptr_t) (regID2 >> 32));
+
                         idx++;
                         continue;
                     }
                         idx++;
                         continue;
                     }
@@ -1992,6 +2232,9 @@ void IOService::terminateWorker( IOOptionBits options )
 
         if( !moreToDo) {
             TLOG("iokit terminate done, %d stops remain\n", gIOStopList->getCount());
 
         if( !moreToDo) {
             TLOG("iokit terminate done, %d stops remain\n", gIOStopList->getCount());
+           IOServiceTrace(
+               IOSERVICE_TERMINATE_DONE,
+               (uintptr_t) gIOStopList->getCount(), 0, 0, 0);
         }
 
     } while( moreToDo );
         }
 
     } while( moreToDo );
@@ -2269,7 +2512,7 @@ SInt32 IOServiceOrdering( const OSMetaClassBase * inObj1, const OSMetaClassBase
     return ( val1 - val2 );
 }
 
     return ( val1 - val2 );
 }
 
-IOService * IOService::getClientWithCategory( const OSSymbol * category )
+IOService * IOService::copyClientWithCategory( const OSSymbol * category )
 {
     IOService *                service = 0;
     OSIterator *       iter;
 {
     IOService *                service = 0;
     OSIterator *       iter;
@@ -2283,13 +2526,25 @@ IOService * IOService::getClientWithCategory( const OSSymbol * category )
             nextCat = (const OSSymbol *) OSDynamicCast( OSSymbol,
                        service->getProperty( gIOMatchCategoryKey ));
            if( category == nextCat)
             nextCat = (const OSSymbol *) OSDynamicCast( OSSymbol,
                        service->getProperty( gIOMatchCategoryKey ));
            if( category == nextCat)
+           {
+               service->retain();
                break;
                break;
+           }
        }
        iter->release();
     }
     return( service );
 }
 
        }
        iter->release();
     }
     return( service );
 }
 
+IOService * IOService::getClientWithCategory( const OSSymbol * category )
+{
+    IOService *
+    service = copyClientWithCategory(category);
+    if (service)
+       service->release();
+    return (service);
+}
+
 bool IOService::invokeNotifer( _IOServiceNotifier * notify )
 {
     _IOServiceNotifierInvocation invocation;
 bool IOService::invokeNotifer( _IOServiceNotifier * notify )
 {
     _IOServiceNotifierInvocation invocation;
@@ -2309,7 +2564,7 @@ bool IOService::invokeNotifer( _IOServiceNotifier * notify )
 
     if( willNotify) {
 
 
     if( willNotify) {
 
-        ret = (*notify->handler)( notify->target, notify->ref, this );
+       ret = (*notify->handler)(notify->target, notify->ref, this, notify);
 
         LOCKWRITENOTIFY();
         queue_remove( &notify->handlerInvocations, &invocation,
 
         LOCKWRITENOTIFY();
         queue_remove( &notify->handlerInvocations, &invocation,
@@ -2347,9 +2602,15 @@ void IOService::probeCandidates( OSOrderedSet * matches )
     OSObject           *       nextMatch = 0;
     bool                       started;
     bool                       needReloc = false;
     OSObject           *       nextMatch = 0;
     bool                       started;
     bool                       needReloc = false;
+#if CONFIG_MACF_KEXT
+    OSBoolean          *       isSandbox = 0;
+    bool                       useSandbox = false;
+#endif
 #if IOMATCHDEBUG
     SInt64                     debugFlags;
 #endif
 #if IOMATCHDEBUG
     SInt64                     debugFlags;
 #endif
+    IOService * client = NULL;
+
 
     assert( matches );
     while( !needReloc && (nextMatch = matches->getFirstObject())) {
 
     assert( matches );
     while( !needReloc && (nextMatch = matches->getFirstObject())) {
@@ -2383,8 +2644,8 @@ void IOService::probeCandidates( OSOrderedSet * matches )
                        match->getObject( gIOMatchCategoryKey ));
            if( 0 == category)
                category = gIODefaultMatchCategoryKey;
                        match->getObject( gIOMatchCategoryKey ));
            if( 0 == category)
                category = gIODefaultMatchCategoryKey;
-
-           if( getClientWithCategory( category )) {
+           
+           if( (client = copyClientWithCategory(category)) ) {
 #if IOMATCHDEBUG
                if( debugFlags & kIOLogMatch)
                    LOG("%s: match category %s exists\n", getName(),
 #if IOMATCHDEBUG
                if( debugFlags & kIOLogMatch)
                    LOG("%s: match category %s exists\n", getName(),
@@ -2392,6 +2653,10 @@ void IOService::probeCandidates( OSOrderedSet * matches )
 #endif
                 nextMatch->release();
                 nextMatch = 0;
 #endif
                 nextMatch->release();
                 nextMatch = 0;
+
+               client->release();
+               client = NULL;
+
                 continue;
            }
 
                 continue;
            }
 
@@ -2455,6 +2720,8 @@ void IOService::probeCandidates( OSOrderedSet * matches )
                 if( !symbol)
                     continue;
     
                 if( !symbol)
                     continue;
     
+                //IOLog("%s alloc (symbol %p props %p)\n", symbol->getCStringNoCopy(), symbol, props);
+
                 // alloc the driver instance
                 inst = (IOService *) OSMetaClass::allocClassWithName( symbol);
     
                 // alloc the driver instance
                 inst = (IOService *) OSMetaClass::allocClassWithName( symbol);
     
@@ -2481,7 +2748,10 @@ void IOService::probeCandidates( OSOrderedSet * matches )
                 if( 0 == category)
                     category = gIODefaultMatchCategoryKey;
                 inst->setProperty( gIOMatchCategoryKey, (OSObject *) category );
                 if( 0 == category)
                     category = gIODefaultMatchCategoryKey;
                 inst->setProperty( gIOMatchCategoryKey, (OSObject *) category );
-    
+#if CONFIG_MACF_KEXT
+               isSandbox = OSDynamicCast(OSBoolean,
+                            props->getObject("IOKitForceMatch"));
+#endif
                 // attach driver instance
                 if( !(inst->attach( this )))
                         continue;
                 // attach driver instance
                 if( !(inst->attach( this )))
                         continue;
@@ -2498,6 +2768,21 @@ void IOService::probeCandidates( OSOrderedSet * matches )
     
                 newInst = inst->probe( this, &score );
                 inst->detach( this );
     
                 newInst = inst->probe( this, &score );
                 inst->detach( this );
+#if CONFIG_MACF_KEXT
+               /*
+                * If this is the Sandbox driver and it matched, this is a
+                * disallowed device; toss any drivers that were already
+                * matched.
+                */
+               if (isSandbox && isSandbox->isTrue() && newInst != 0) {
+                   if (startDict != 0) {
+                       startDict->flushCollection();
+                       startDict->release();
+                       startDict = 0;
+                   }
+                   useSandbox = true;
+               }
+#endif
                 if( 0 == newInst) {
 #if IOMATCHDEBUG
                     if( debugFlags & kIOLogProbe)
                 if( 0 == newInst) {
 #if IOMATCHDEBUG
                     if( debugFlags & kIOLogProbe)
@@ -2536,6 +2821,13 @@ void IOService::probeCandidates( OSOrderedSet * matches )
             props->release();
             if( inst)
                 inst->release();
             props->release();
             if( inst)
                 inst->release();
+#if CONFIG_MACF_KEXT
+           /*
+            * If we're forcing the sandbox, drop out of the loop.
+            */
+           if (isSandbox && isSandbox->isTrue() && useSandbox)
+                   break;
+#endif
         }
         familyMatches->release();
         familyMatches = 0;
         }
         familyMatches->release();
         familyMatches = 0;
@@ -2583,16 +2875,35 @@ void IOService::probeCandidates( OSOrderedSet * matches )
     }
 
 
     }
 
 
-    // adjust the busy count by -1 if matching is stalled for a module,
-    // or +1 if a previously stalled matching is complete.
+    // adjust the busy count by +1 if matching is stalled for a module,
+    // or -1 if a previously stalled matching is complete.
     lockForArbitration();
     SInt32 adjBusy = 0;
     lockForArbitration();
     SInt32 adjBusy = 0;
+    uint64_t regID = getRegistryEntryID();
+
     if( needReloc) {
         adjBusy = (__state[1] & kIOServiceModuleStallState) ? 0 : 1;
     if( needReloc) {
         adjBusy = (__state[1] & kIOServiceModuleStallState) ? 0 : 1;
-        if( adjBusy)
+        if( adjBusy) {
+
+           IOServiceTrace(
+               IOSERVICE_MODULESTALL,
+               (uintptr_t) regID, 
+               (uintptr_t) (regID >> 32),
+               (uintptr_t) this,
+               0);
+
             __state[1] |= kIOServiceModuleStallState;
             __state[1] |= kIOServiceModuleStallState;
+       }
 
     } else if( __state[1] & kIOServiceModuleStallState) {
 
     } else if( __state[1] & kIOServiceModuleStallState) {
+
+           IOServiceTrace(
+           IOSERVICE_MODULEUNSTALL,
+           (uintptr_t) regID, 
+           (uintptr_t) (regID >> 32),
+           (uintptr_t) this,
+           0);
+
         __state[1] &= ~kIOServiceModuleStallState;
         adjBusy = -1;
     }
         __state[1] &= ~kIOServiceModuleStallState;
         adjBusy = -1;
     }
@@ -2643,7 +2954,7 @@ bool IOService::startCandidate( IOService * service )
                SUB_ABSOLUTETIME(&endTime, &startTime);
                absolutetime_to_nanoseconds(endTime, &nano);
                if (nano > 500000000ULL)
                SUB_ABSOLUTETIME(&endTime, &startTime);
                absolutetime_to_nanoseconds(endTime, &nano);
                if (nano > 500000000ULL)
-                   IOLog("%s::start took %ld ms\n", service->getName(), (UInt32)(nano / 1000000ULL));
+                   IOLog("%s::start took %ld ms\n", service->getName(), (long)(UInt32)(nano / 1000000ULL));
            }
        }
         if( !ok)
            }
        }
         if( !ok)
@@ -2652,11 +2963,6 @@ bool IOService::startCandidate( IOService * service )
     return( ok );
 }
 
     return( ok );
 }
 
-IOService * IOService::resources( void )
-{
-    return( gIOResources );
-}
-
 void IOService::publishResource( const char * key, OSObject * value )
 {
     const OSSymbol *   sym;
 void IOService::publishResource( const char * key, OSObject * value )
 {
     const OSSymbol *   sym;
@@ -2733,12 +3039,12 @@ bool IOService::checkResource( OSObject * matching )
     }
 
     if( gIOKitDebug & kIOLogConfig)
     }
 
     if( gIOKitDebug & kIOLogConfig)
-        LOG("config(%x): stalling %s\n", (int) IOThreadSelf(), getName());
+        LOG("config(%p): stalling %s\n", IOThreadSelf(), getName());
 
     waitForService( table );
 
     if( gIOKitDebug & kIOLogConfig)
 
     waitForService( table );
 
     if( gIOKitDebug & kIOLogConfig)
-        LOG("config(%x): waking\n", (int) IOThreadSelf() );
+        LOG("config(%p): waking\n", IOThreadSelf() );
 
     return( true );
 }
 
     return( true );
 }
@@ -2779,7 +3085,8 @@ void _IOConfigThread::configThread( void )
            continue;
        if( !inst->init())
            continue;
            continue;
        if( !inst->init())
            continue;
-       if( !(IOCreateThread((IOThreadFunc) &_IOConfigThread::main, inst )))
+       thread_t unused;
+       if (KERN_SUCCESS != kernel_thread_start(&_IOConfigThread::main, inst, &unused))
            continue;
 
        return;
            continue;
 
        return;
@@ -2794,6 +3101,7 @@ void _IOConfigThread::configThread( void )
 
 void _IOConfigThread::free( void )
 {
 
 void _IOConfigThread::free( void )
 {
+    thread_deallocate(current_thread());
     OSObject::free();
 }
 
     OSObject::free();
 }
 
@@ -2824,8 +3132,8 @@ void IOService::doServiceMatch( IOOptionBits options )
             __state[1] |= kIOServiceConfigState;
             __state[0] |= kIOServiceRegisteredState;
 
             __state[1] |= kIOServiceConfigState;
             __state[0] |= kIOServiceRegisteredState;
 
-            if( reRegistered && (0 == (__state[0] & kIOServiceInactiveState))) {
-
+           keepGuessing &= (0 == (__state[0] & kIOServiceInactiveState));
+            if (reRegistered && keepGuessing) {
                 iter = OSCollectionIterator::withCollection( (OSOrderedSet *)
                         gNotifications->getObject( gIOPublishNotification ) );
                 if( iter) {
                 iter = OSCollectionIterator::withCollection( (OSOrderedSet *)
                         gNotifications->getObject( gIOPublishNotification ) );
                 if( iter) {
@@ -2843,7 +3151,7 @@ void IOService::doServiceMatch( IOOptionBits options )
            UNLOCKNOTIFY();
             unlockForArbitration();
 
            UNLOCKNOTIFY();
             unlockForArbitration();
 
-            if( matches->getCount() && (kIOReturnSuccess == getResources()))
+            if (keepGuessing && matches->getCount() && (kIOReturnSuccess == getResources()))
                 probeCandidates( matches );
             else
                 matches->release();
                 probeCandidates( matches );
             else
                 matches->release();
@@ -2891,11 +3199,13 @@ UInt32 IOService::_adjustBusy( SInt32 delta )
         if( next != this)
             next->lockForArbitration();
         count = next->__state[1] & kIOServiceBusyStateMask;
         if( next != this)
             next->lockForArbitration();
         count = next->__state[1] & kIOServiceBusyStateMask;
-        assert( count < kIOServiceBusyMax);
         wasQuiet = (0 == count);
         wasQuiet = (0 == count);
-        assert( (!wasQuiet) || (delta > 0));
-        next->__state[1] += delta;
-        nowQuiet = (0 == (next->__state[1] & kIOServiceBusyStateMask));
+       if (((delta < 0) && wasQuiet) || ((delta > 0) && (kIOServiceBusyMax == count)))
+           OSReportWithBacktrace("%s: bad busy count (%d,%d)\n", next->getName(), count, delta);
+       else
+           count += delta;
+       next->__state[1] = (next->__state[1] & ~kIOServiceBusyStateMask) | count;
+        nowQuiet = (0 == count);
        needWake = (0 != (kIOServiceBusyWaiterState & next->__state[1]));
 
         if( needWake) {
        needWake = (0 != (kIOServiceBusyWaiterState & next->__state[1]));
 
         if( needWake) {
@@ -2908,18 +3218,41 @@ UInt32 IOService::_adjustBusy( SInt32 delta )
             next->unlockForArbitration();
 
         if( (wasQuiet || nowQuiet) ) {
             next->unlockForArbitration();
 
         if( (wasQuiet || nowQuiet) ) {
+           uint64_t regID = next->getRegistryEntryID();
+
+               IOServiceTrace(
+               ((wasQuiet/*nowBusy*/) ? IOSERVICE_BUSY : IOSERVICE_NONBUSY),
+               (uintptr_t) regID, 
+               (uintptr_t) (regID >> 32),
+               (uintptr_t) next,
+               0);
+
+           if (wasQuiet)
+           {
+               next->__timeBusy = mach_absolute_time();
+           }
+           else
+           {
+               next->__accumBusy += mach_absolute_time() - next->__timeBusy;
+               next->__timeBusy = 0;
+           }
+
            MessageClientsContext context;
 
            context.service  = next;
            context.type     = kIOMessageServiceBusyStateChange;
            MessageClientsContext context;
 
            context.service  = next;
            context.type     = kIOMessageServiceBusyStateChange;
-           context.argument = (void *) wasQuiet;       // busy now
+           context.argument = (void *) wasQuiet;       /*nowBusy*/
            context.argSize  = 0;
 
            applyToInterestNotifiers( next, gIOBusyInterest, 
                                     &messageClientsApplier, &context );
 
            context.argSize  = 0;
 
            applyToInterestNotifiers( next, gIOBusyInterest, 
                                     &messageClientsApplier, &context );
 
-            if( nowQuiet && (next == gIOServiceRoot))
-                OSMetaClass::considerUnloads();
+#if !NO_KEXTD
+            if( nowQuiet && (next == gIOServiceRoot)) {
+                OSKext::considerUnloads();
+                IOServiceTrace(IOSERVICE_REGISTRY_QUIET, 0, 0, 0, 0);
+            }
+#endif
         }
 
         delta = nowQuiet ? -1 : +1;
         }
 
         delta = nowQuiet ? -1 : +1;
@@ -2936,13 +3269,40 @@ void IOService::adjustBusy( SInt32 delta )
     unlockForArbitration();
 }
 
     unlockForArbitration();
 }
 
+uint64_t IOService::getAccumulatedBusyTime( void )
+{
+    uint64_t accumBusy = __accumBusy;
+    uint64_t timeBusy = __timeBusy;
+    uint64_t nano;
+
+    do
+    {
+       accumBusy = __accumBusy;
+       timeBusy  = __timeBusy;
+       if (timeBusy)
+           accumBusy += mach_absolute_time() - timeBusy;
+    }
+    while (timeBusy != __timeBusy);
+
+    absolutetime_to_nanoseconds(*(AbsoluteTime *)&accumBusy, &nano);
+
+    return (nano);
+}
+
 UInt32 IOService::getBusyState( void )
 {
     return( __state[1] & kIOServiceBusyStateMask );
 }
 
 IOReturn IOService::waitForState( UInt32 mask, UInt32 value,
 UInt32 IOService::getBusyState( void )
 {
     return( __state[1] & kIOServiceBusyStateMask );
 }
 
 IOReturn IOService::waitForState( UInt32 mask, UInt32 value,
-                                mach_timespec_t * timeout )
+                                 mach_timespec_t * timeout )
+{
+    panic("waitForState");
+    return (kIOReturnUnsupported);
+}
+
+IOReturn IOService::waitForState( UInt32 mask, UInt32 value,
+                                  uint64_t timeout )
 {
     bool            wait;
     int             waitResult = THREAD_AWAKENED;
 {
     bool            wait;
     int             waitResult = THREAD_AWAKENED;
@@ -2956,23 +3316,17 @@ IOReturn IOService::waitForState( UInt32 mask, UInt32 value,
         if( wait) {
             __state[1] |= kIOServiceBusyWaiterState;
             unlockForArbitration();
         if( wait) {
             __state[1] |= kIOServiceBusyWaiterState;
             unlockForArbitration();
-            if( timeout ) {
+            if( timeout != UINT64_MAX ) {
                 if( computeDeadline ) {
                     AbsoluteTime  nsinterval;
                 if( computeDeadline ) {
                     AbsoluteTime  nsinterval;
-                    clock_interval_to_absolutetime_interval(
-                          timeout->tv_sec, kSecondScale, &abstime );
-                    clock_interval_to_absolutetime_interval(
-                          timeout->tv_nsec, kNanosecondScale, &nsinterval );
-                    ADD_ABSOLUTETIME( &abstime, &nsinterval );
-                    clock_absolutetime_interval_to_deadline(
-                          abstime, &abstime );
+                    nanoseconds_to_absolutetime(timeout, &nsinterval );
+                    clock_absolutetime_interval_to_deadline(nsinterval, &abstime);
                     computeDeadline = false;
                 }
                     computeDeadline = false;
                 }
-
-                               assert_wait_deadline((event_t)this, THREAD_UNINT, __OSAbsoluteTime(abstime));
+                assert_wait_deadline((event_t)this, THREAD_UNINT, __OSAbsoluteTime(abstime));
             }
             }
-                       else
-                               assert_wait((event_t)this, THREAD_UNINT );
+            else
+                assert_wait((event_t)this, THREAD_UNINT );
         } else
             unlockForArbitration();
         IOLockUnlock( gIOServiceBusyLock );
         } else
             unlockForArbitration();
         IOLockUnlock( gIOServiceBusyLock );
@@ -2987,11 +3341,27 @@ IOReturn IOService::waitForState( UInt32 mask, UInt32 value,
         return( kIOReturnSuccess );
 }
 
         return( kIOReturnSuccess );
 }
 
-IOReturn IOService::waitQuiet( mach_timespec_t * timeout )
+IOReturn IOService::waitQuiet( uint64_t timeout )
 {
     return( waitForState( kIOServiceBusyStateMask, 0, timeout ));
 }
 
 {
     return( waitForState( kIOServiceBusyStateMask, 0, timeout ));
 }
 
+IOReturn IOService::waitQuiet( mach_timespec_t * timeout )
+{
+    uint64_t    timeoutNS;
+
+    if (timeout)
+    {
+       timeoutNS = timeout->tv_sec;
+       timeoutNS *= kSecondScale;
+       timeoutNS += timeout->tv_nsec;
+    }
+    else
+       timeoutNS = UINT64_MAX;
+
+    return( waitForState( kIOServiceBusyStateMask, 0, timeoutNS ));
+}
+
 bool IOService::serializeProperties( OSSerialize * s ) const
 {
 #if 0
 bool IOService::serializeProperties( OSSerialize * s ) const
 {
 #if 0
@@ -3002,11 +3372,21 @@ bool IOService::serializeProperties( OSSerialize * s ) const
 }
 
 
 }
 
 
-void _IOConfigThread::main( _IOConfigThread * self )
+void _IOConfigThread::main(void * arg, wait_result_t result)
 {
 {
-    _IOServiceJob *    job;
-    IOService  *       nub;
-    bool               alive = true;
+    _IOConfigThread * self = (_IOConfigThread *) arg;
+    _IOServiceJob * job;
+    IOService  *   nub;
+    bool           alive = true;
+    kern_return_t   kr;
+    thread_precedence_policy_data_t precedence = { -1 };
+
+    kr = thread_policy_set(current_thread(), 
+                           THREAD_PRECEDENCE_POLICY, 
+                           (thread_policy_t) &precedence, 
+                           THREAD_PRECEDENCE_POLICY_COUNT);
+    if (KERN_SUCCESS != kr)
+       IOLog("thread_policy_set(%d)\n", kr);
 
     do {
 
 
     do {
 
@@ -3030,8 +3410,8 @@ void _IOConfigThread::main( _IOConfigThread * self )
          nub = job->nub;
 
           if( gIOKitDebug & kIOLogConfig)
          nub = job->nub;
 
           if( gIOKitDebug & kIOLogConfig)
-            LOG("config(%x): starting on %s, %d\n",
-                        (int) IOThreadSelf(), job->nub->getName(), job->type);
+            LOG("config(%p): starting on %s, %d\n",
+                        IOThreadSelf(), job->nub->getName(), job->type);
 
          switch( job->type) {
 
 
          switch( job->type) {
 
@@ -3040,8 +3420,8 @@ void _IOConfigThread::main( _IOConfigThread * self )
                break;
 
             default:
                break;
 
             default:
-                LOG("config(%x): strange type (%d)\n",
-                       (int) IOThreadSelf(), job->type );
+                LOG("config(%p): strange type (%d)\n",
+                       IOThreadSelf(), job->type );
                break;
             }
 
                break;
             }
 
@@ -3065,7 +3445,7 @@ void _IOConfigThread::main( _IOConfigThread * self )
     } while( alive );
 
     if( gIOKitDebug & kIOLogConfig)
     } while( alive );
 
     if( gIOKitDebug & kIOLogConfig)
-        LOG("config(%x): terminating\n", (int) IOThreadSelf() );
+        LOG("config(%p): terminating\n", IOThreadSelf() );
 
     self->release();
 }
 
     self->release();
 }
@@ -3075,7 +3455,7 @@ IOReturn IOService::waitMatchIdle( UInt32 msToWait )
     bool            wait;
     int             waitResult = THREAD_AWAKENED;
     bool            computeDeadline = true;
     bool            wait;
     int             waitResult = THREAD_AWAKENED;
     bool            computeDeadline = true;
-    AbsoluteTime    abstime;
+    AbsoluteTime    deadline;
 
     IOLockLock( gJobsLock );
     do {
 
     IOLockLock( gJobsLock );
     do {
@@ -3083,14 +3463,12 @@ IOReturn IOService::waitMatchIdle( UInt32 msToWait )
         if( wait) {
             if( msToWait) {
                 if( computeDeadline ) {
         if( wait) {
             if( msToWait) {
                 if( computeDeadline ) {
-                    clock_interval_to_absolutetime_interval(
-                          msToWait, kMillisecondScale, &abstime );
-                    clock_absolutetime_interval_to_deadline(
-                          abstime, &abstime );
+                    clock_interval_to_deadline(
+                          msToWait, kMillisecondScale, &deadline );
                     computeDeadline = false;
                 }
                          waitResult = IOLockSleepDeadline( gJobsLock, &gNumConfigThreads,
                     computeDeadline = false;
                 }
                          waitResult = IOLockSleepDeadline( gJobsLock, &gNumConfigThreads,
-                                                               abstime, THREAD_UNINT );
+                                                               deadline, THREAD_UNINT );
                   } else {
                          waitResult = IOLockSleep( gJobsLock, &gNumConfigThreads,
                                                                THREAD_UNINT );
                   } else {
                          waitResult = IOLockSleep( gJobsLock, &gNumConfigThreads,
                                                                THREAD_UNINT );
@@ -3141,7 +3519,7 @@ void _IOServiceJob::pingConfig( _IOServiceJob * job )
 }
 
 // internal - call with gNotificationLock
 }
 
 // internal - call with gNotificationLock
-OSObject * IOService::getExistingServices( OSDictionary * matching,
+OSObject * IOService::copyExistingServices( OSDictionary * matching,
                 IOOptionBits inState, IOOptionBits options )
 {
     OSObject *         current = 0;
                 IOOptionBits inState, IOOptionBits options )
 {
     OSObject *         current = 0;
@@ -3163,7 +3541,10 @@ OSObject * IOService::getExistingServices( OSDictionary * matching,
          &&  service->passiveMatch( matching ))
        {
            if( options & kIONotifyOnce)
          &&  service->passiveMatch( matching ))
        {
            if( options & kIONotifyOnce)
+           {
+               service->retain();
                current = service;
                current = service;
+           }
            else
                current = OSSet::withObjects(
                                (const OSObject **) &service, 1, 1 );
            else
                current = OSSet::withObjects(
                                (const OSObject **) &service, 1, 1 );
@@ -3182,6 +3563,7 @@ OSObject * IOService::getExistingServices( OSDictionary * matching,
                    &&  service->passiveMatch( matching )) {
     
                        if( options & kIONotifyOnce) {
                    &&  service->passiveMatch( matching )) {
     
                        if( options & kIONotifyOnce) {
+                           service->retain();
                            current = service;
                            break;
                        }
                            current = service;
                            break;
                        }
@@ -3214,7 +3596,7 @@ OSIterator * IOService::getMatchingServices( OSDictionary * matching )
     // is a lock even needed?
     LOCKWRITENOTIFY();
 
     // is a lock even needed?
     LOCKWRITENOTIFY();
 
-    iter = (OSIterator *) getExistingServices( matching,
+    iter = (OSIterator *) copyExistingServices( matching,
                                                kIOServiceMatchedState );
     
     UNLOCKNOTIFY();
                                                kIOServiceMatchedState );
     
     UNLOCKNOTIFY();
@@ -3222,11 +3604,23 @@ OSIterator * IOService::getMatchingServices( OSDictionary * matching )
     return( iter );
 }
 
     return( iter );
 }
 
+struct _IOServiceMatchingNotificationHandlerRef
+{
+    IOServiceNotificationHandler handler;
+    void * ref;
+};
+
+static bool _IOServiceMatchingNotificationHandler( void * target, void * refCon,
+                                                  IOService * newService,
+                                                  IONotifier * notifier )
+{
+    return ((*((_IOServiceNotifier *) notifier)->compatHandler)(target, refCon, newService));
+}
 
 // internal - call with gNotificationLock
 IONotifier * IOService::setNotification(
            const OSSymbol * type, OSDictionary * matching,
 
 // internal - call with gNotificationLock
 IONotifier * IOService::setNotification(
            const OSSymbol * type, OSDictionary * matching,
-            IOServiceNotificationHandler handler, void * target, void * ref,
+            IOServiceMatchingNotificationHandler handler, void * target, void * ref,
             SInt32 priority )
 {
     _IOServiceNotifier * notify = 0;
             SInt32 priority )
 {
     _IOServiceNotifier * notify = 0;
@@ -3242,10 +3636,17 @@ IONotifier * IOService::setNotification(
     }
 
     if( notify) {
     }
 
     if( notify) {
-        notify->matching = matching;
-        notify->handler = handler;
+       notify->handler = handler;
         notify->target = target;
         notify->target = target;
-        notify->ref = ref;
+        notify->matching = matching;
+       matching->retain();
+       if (handler == &_IOServiceMatchingNotificationHandler)
+       {
+           notify->compatHandler = ((_IOServiceMatchingNotificationHandlerRef *)ref)->handler;
+           notify->ref = ((_IOServiceMatchingNotificationHandlerRef *)ref)->ref;
+       }
+       else
+           notify->ref = ref;
         notify->priority = priority;
        notify->state = kIOServiceNotifyEnable;
         queue_init( &notify->handlerInvocations );
         notify->priority = priority;
        notify->state = kIOServiceNotifyEnable;
         queue_init( &notify->handlerInvocations );
@@ -3271,7 +3672,7 @@ IONotifier * IOService::setNotification(
 // internal - call with gNotificationLock
 IONotifier * IOService::doInstallNotification(
                        const OSSymbol * type, OSDictionary * matching,
 // internal - call with gNotificationLock
 IONotifier * IOService::doInstallNotification(
                        const OSSymbol * type, OSDictionary * matching,
-                       IOServiceNotificationHandler handler,
+                       IOServiceMatchingNotificationHandler handler,
                        void * target, void * ref,
                        SInt32 priority, OSIterator ** existing )
 {
                        void * target, void * ref,
                        SInt32 priority, OSIterator ** existing )
 {
@@ -3300,7 +3701,7 @@ IONotifier * IOService::doInstallNotification(
     
     if( inState)
         // get the current set
     
     if( inState)
         // get the current set
-        exist = (OSIterator *) getExistingServices( matching, inState );
+        exist = (OSIterator *) copyExistingServices( matching, inState );
     else
        exist = 0;
 
     else
        exist = 0;
 
@@ -3309,14 +3710,35 @@ IONotifier * IOService::doInstallNotification(
     return( notify );
 }
 
     return( notify );
 }
 
+#if !defined(__LP64__)
+IONotifier * IOService::installNotification(const OSSymbol * type, OSDictionary * matching,
+                                       IOServiceNotificationHandler handler,
+                                       void * target, void * refCon,
+                                       SInt32 priority, OSIterator ** existing )
+{
+    IONotifier * result;
+    _IOServiceMatchingNotificationHandlerRef ref;
+    ref.handler = handler;
+    ref.ref     = refCon;
+
+    result = (_IOServiceNotifier *) installNotification( type, matching,
+                        &_IOServiceMatchingNotificationHandler, 
+                       target, &ref, priority, existing );
+    if (result)
+       matching->release();
+
+    return (result);
+}
+#endif /* !defined(__LP64__) */
+
 
 IONotifier * IOService::installNotification(
                        const OSSymbol * type, OSDictionary * matching,
 
 IONotifier * IOService::installNotification(
                        const OSSymbol * type, OSDictionary * matching,
-                       IOServiceNotificationHandler handler,
+                       IOServiceMatchingNotificationHandler handler,
                        void * target, void * ref,
                        SInt32 priority, OSIterator ** existing )
 {
                        void * target, void * ref,
                        SInt32 priority, OSIterator ** existing )
 {
-    IONotifier *       notify;
+    IONotifier * notify;
 
     LOCKWRITENOTIFY();
 
 
     LOCKWRITENOTIFY();
 
@@ -3331,10 +3753,31 @@ IONotifier * IOService::installNotification(
 IONotifier * IOService::addNotification(
                        const OSSymbol * type, OSDictionary * matching,
                        IOServiceNotificationHandler handler,
 IONotifier * IOService::addNotification(
                        const OSSymbol * type, OSDictionary * matching,
                        IOServiceNotificationHandler handler,
+                       void * target, void * refCon,
+                       SInt32 priority )
+{
+    IONotifier * result;
+    _IOServiceMatchingNotificationHandlerRef ref;
+    
+    ref.handler = handler;
+    ref.ref     = refCon;
+    
+    result = addMatchingNotification(type, matching, &_IOServiceMatchingNotificationHandler,
+                           target, &ref, priority);
+
+    if (result)
+       matching->release();
+
+    return (result);
+}
+
+IONotifier * IOService::addMatchingNotification(
+                       const OSSymbol * type, OSDictionary * matching,
+                       IOServiceMatchingNotificationHandler handler,
                        void * target, void * ref,
                        SInt32 priority )
 {
                        void * target, void * ref,
                        SInt32 priority )
 {
-    OSIterator *               existing;
+    OSIterator *               existing = NULL;
     _IOServiceNotifier *       notify;
     IOService *                        next;
 
     _IOServiceNotifier *       notify;
     IOService *                        next;
 
@@ -3359,76 +3802,93 @@ IONotifier * IOService::addNotification(
     return( notify );
 }
 
     return( notify );
 }
 
-struct SyncNotifyVars {
-    semaphore_port_t   waitHere;
-    IOService *                result;
-};
-
 bool IOService::syncNotificationHandler(
                        void * /* target */, void * ref,
 bool IOService::syncNotificationHandler(
                        void * /* target */, void * ref,
-                       IOService * newService )
+                       IOService * newService,
+                       IONotifier * notifier )
 {
 
 {
 
-    // result may get written more than once before the
-    // notification is removed!
-    ((SyncNotifyVars *) ref)->result = newService;
-    semaphore_signal( ((SyncNotifyVars *) ref)->waitHere );
+    LOCKWRITENOTIFY();
+    if (!*((IOService **) ref))
+    {
+       newService->retain();
+       (*(IOService **) ref) = newService;
+       WAKEUPNOTIFY(ref);
+    }
+    UNLOCKNOTIFY();
 
     return( false );
 }
 
 
     return( false );
 }
 
-IOService * IOService::waitForService( OSDictionary * matching,
-                               mach_timespec_t * timeout )
+IOService * IOService::waitForMatchingService( OSDictionary * matching,
+                                               uint64_t timeout)
 {
     IONotifier *       notify = 0;
     // priority doesn't help us much since we need a thread wakeup
     SInt32             priority = 0;
 {
     IONotifier *       notify = 0;
     // priority doesn't help us much since we need a thread wakeup
     SInt32             priority = 0;
-    SyncNotifyVars     state;
-    kern_return_t      err = kIOReturnBadArgument;
+    IOService *        result;
 
 
-    if( !matching)
+    if (!matching)
         return( 0 );
 
         return( 0 );
 
-    state.waitHere = 0;
-    state.result = 0;
+    result = NULL;
 
     LOCKWRITENOTIFY();
 
     LOCKWRITENOTIFY();
-
-    do {
-
-        state.result = (IOService *) getExistingServices( matching,
+    do
+    {
+        result = (IOService *) copyExistingServices( matching,
                             kIOServiceMatchedState, kIONotifyOnce );
                             kIOServiceMatchedState, kIONotifyOnce );
-       if( state.result)
-           continue;
-
-        err = semaphore_create( kernel_task, &state.waitHere,
-                                    SYNC_POLICY_FIFO, 0 );
-        if( KERN_SUCCESS != err)
-            continue;
-
+       if (result)
+           break;
         notify = IOService::setNotification( gIOMatchedNotification, matching,
                     &IOService::syncNotificationHandler, (void *) 0,
         notify = IOService::setNotification( gIOMatchedNotification, matching,
                     &IOService::syncNotificationHandler, (void *) 0,
-                    (void *) &state, priority );
-
-    } while( false );
-
-    UNLOCKNOTIFY();
-
-     if( notify) {
-        if( timeout)
-            err = semaphore_timedwait( state.waitHere, *timeout );
+                    &result, priority );
+        if (!notify)
+           break;
+        if (UINT64_MAX != timeout)
+       {
+           AbsoluteTime deadline;
+           nanoseconds_to_absolutetime(timeout, &deadline);
+           clock_absolutetime_interval_to_deadline(deadline, &deadline);
+           SLEEPNOTIFYTO(&result, deadline);
+       }
         else
         else
-            err = semaphore_wait( state.waitHere );
+       {
+           SLEEPNOTIFY(&result);
+       }
     }
     }
+    while( false );
+
+    UNLOCKNOTIFY();
 
 
-    if( notify)
+    if (notify)
         notify->remove();      // dequeues
         notify->remove();      // dequeues
+
+    return( result );
+}
+
+IOService * IOService::waitForService( OSDictionary * matching,
+                                       mach_timespec_t * timeout )
+{
+    IOService * result;
+    uint64_t    timeoutNS;
+
+    if (timeout)
+    {
+       timeoutNS = timeout->tv_sec;
+       timeoutNS *= kSecondScale;
+       timeoutNS += timeout->tv_nsec;
+    }
     else
     else
-        matching->release();
-    if( state.waitHere)
-        semaphore_destroy( kernel_task, state.waitHere );
+       timeoutNS = UINT64_MAX;
+
+    result = waitForMatchingService(matching, timeoutNS);
+
+    matching->release();
+    if (result)
+       result->release();
 
 
-    return( state.result );
+    return (result);
 }
 
 void IOService::deliverNotification( const OSSymbol * type,
 }
 
 void IOService::deliverNotification( const OSSymbol * type,
@@ -3562,6 +4022,47 @@ OSDictionary * IOService::resourceMatching( const char * name,
     return( table );
 }
 
     return( table );
 }
 
+OSDictionary * IOService::propertyMatching( const OSSymbol * key, const OSObject * value,
+                       OSDictionary * table )
+{
+    OSDictionary * properties;
+
+    properties = OSDictionary::withCapacity( 2 );
+    if( !properties)
+       return( 0 );
+    properties->setObject( key, value );
+
+    if( !table)
+       table = OSDictionary::withCapacity( 2 );
+    if( table)
+        table->setObject( gIOPropertyMatchKey, properties );
+
+    properties->release();
+
+    return( table );
+}
+
+OSDictionary * IOService::registryEntryIDMatching( uint64_t entryID,
+                       OSDictionary * table )
+{
+    OSNumber *     num;
+
+    num = OSNumber::withNumber( entryID, 64 );
+    if( !num)
+       return( 0 );
+
+    if( !table)
+       table = OSDictionary::withCapacity( 2 );
+    if( table)
+        table->setObject( gIORegistryEntryIDKey, num );
+       
+    if (num)
+       num->release();
+
+    return( table );
+}
+
+
 /*
  * _IOServiceNotifier
  */
 /*
  * _IOServiceNotifier
  */
@@ -3662,10 +4163,38 @@ IOService * IOResources::resources( void )
     return( inst );
 }
 
     return( inst );
 }
 
+bool IOResources::init( OSDictionary * dictionary )
+{
+    // Do super init first
+    if ( !super::init() )
+        return false;
+
+    // Allow PAL layer to publish a value
+    const char *property_name;
+    int property_value;
+
+    pal_get_resource_property( &property_name, &property_value );
+
+    if( property_name ) {
+       OSNumber *num;
+       const OSSymbol *        sym;
+
+       if( (num = OSNumber::withNumber(property_value, 32)) != 0 ) {
+           if( (sym = OSSymbol::withCString( property_name)) != 0 ) {
+               this->setProperty( sym, num );
+               sym->release();
+           }
+           num->release();
+       }
+    }
+
+    return true;
+}
+
 IOWorkLoop * IOResources::getWorkLoop() const
 {
 IOWorkLoop * IOResources::getWorkLoop() const
 {
-    // If we are the resource root then bringe over to the
-    // platform to get its workloop
+    // If we are the resource root
+    // then use the platform's workloop
     if (this == (IOResources *) gIOResources)
        return getPlatform()->getWorkLoop();
     else
     if (this == (IOResources *) gIOResources)
        return getPlatform()->getWorkLoop();
     else
@@ -3699,6 +4228,100 @@ bool IOResources::matchPropertyTable( OSDictionary * table )
     return( ok );
 }
 
     return( ok );
 }
 
+void IOService::consoleLockTimer(thread_call_param_t p0, thread_call_param_t p1)
+{
+    IOService::updateConsoleUsers(NULL, 0);
+}
+
+void IOService::updateConsoleUsers(OSArray * consoleUsers, IOMessage systemMessage)
+{
+    IORegistryEntry * regEntry;
+    OSObject *        locked = kOSBooleanFalse;
+    uint32_t          idx;
+    bool              loggedIn;
+    bool              publish;
+    OSDictionary *    user;
+    static IOMessage  sSystemPower;
+
+    regEntry = IORegistryEntry::getRegistryRoot();
+
+    IOLockLock(gIOConsoleUsersLock);
+
+    if (systemMessage)
+    {
+        sSystemPower = systemMessage;
+    }
+    loggedIn = false;
+    if (consoleUsers)
+    {
+        OSNumber * num = 0;
+       for (idx = 0; 
+             (user = OSDynamicCast(OSDictionary, consoleUsers->getObject(idx))); 
+             idx++)
+       {
+           loggedIn |= ((kOSBooleanTrue == user->getObject(gIOConsoleSessionOnConsoleKey))
+                       && (kOSBooleanTrue == user->getObject(gIOConsoleSessionLoginDoneKey)));
+           if (!num)
+           {
+               num = OSDynamicCast(OSNumber, user->getObject(gIOConsoleSessionScreenLockedTimeKey));
+           }
+       }
+        gIOConsoleLockTime = num ? num->unsigned32BitValue() : 0;
+    }
+
+    if (!loggedIn 
+     || (kIOMessageSystemWillSleep == sSystemPower)
+     || (kIOMessageSystemPagingOff == sSystemPower))
+    {
+       locked = kOSBooleanTrue;
+    }
+    else if (gIOConsoleLockTime)
+    {
+       clock_sec_t  now;
+       clock_usec_t microsecs;
+
+       clock_get_calendar_microtime(&now, &microsecs);
+       if (gIOConsoleLockTime > now)
+       {
+           AbsoluteTime deadline;
+           clock_interval_to_deadline(gIOConsoleLockTime - now, kSecondScale, &deadline);
+           thread_call_enter_delayed(gIOConsoleLockCallout, deadline);
+       }
+       else
+       {
+           locked = kOSBooleanTrue;
+       }
+    }
+
+    publish = (consoleUsers || (locked != regEntry->getProperty(gIOConsoleLockedKey)));
+    if (publish)
+    {
+       regEntry->setProperty(gIOConsoleLockedKey, locked);
+       if (consoleUsers)
+       {
+           regEntry->setProperty(gIOConsoleUsersKey, consoleUsers);
+       }
+       OSIncrementAtomic( &gIOConsoleUsersSeed );
+    }
+
+    IOLockUnlock(gIOConsoleUsersLock);
+
+    if (publish)
+    {
+       publishResource( gIOConsoleUsersSeedKey, gIOConsoleUsersSeedValue );
+
+       MessageClientsContext context;
+    
+       context.service  = getServiceRoot();
+       context.type     = kIOMessageConsoleSecurityChange;
+       context.argument = (void *) regEntry;
+       context.argSize  = 0;
+    
+       applyToInterestNotifiers(getServiceRoot(), gIOConsoleSecurityInterest, 
+                                &messageClientsApplier, &context );
+    }
+}
+
 IOReturn IOResources::setProperties( OSObject * properties )
 {
     IOReturn                   err;
 IOReturn IOResources::setProperties( OSObject * properties )
 {
     IOReturn                   err;
@@ -3718,15 +4341,17 @@ IOReturn IOResources::setProperties( OSObject * properties )
     if( 0 == iter)
        return( kIOReturnBadArgument);
 
     if( 0 == iter)
        return( kIOReturnBadArgument);
 
-    while( (key = OSDynamicCast(OSSymbol, iter->getNextObject()))) {
-
-       if (gIOConsoleUsersKey == key)
+    while( (key = OSDynamicCast(OSSymbol, iter->getNextObject())))
+    {
+       if (gIOConsoleUsersKey == key) do
        {
        {
-           IORegistryEntry::getRegistryRoot()->setProperty(key, dict->getObject(key));
-           OSIncrementAtomic( &gIOConsoleUsersSeed );
-           publishResource( gIOConsoleUsersSeedKey, gIOConsoleUsersSeedValue );
-           continue;
+           OSArray * consoleUsers;
+           consoleUsers = OSDynamicCast(OSArray, dict->getObject(key));
+           if (!consoleUsers)
+               continue;
+           IOService::updateConsoleUsers(consoleUsers, 0);
        }
        }
+       while (false);
 
        publishResource( key, dict->getObject(key) );
     }
 
        publishResource( key, dict->getObject(key) );
     }
@@ -3934,6 +4559,12 @@ bool IOService::passiveMatch( OSDictionary * table, bool changesOK )
                     break;
             }
 
                     break;
             }
 
+            num = OSDynamicCast( OSNumber, table->getObject( gIORegistryEntryIDKey ));
+            if( num) {
+               done++;
+                match = (getRegistryEntryID() == num->unsigned64BitValue());
+           }
+
             num = OSDynamicCast( OSNumber, table->getObject( gIOMatchedServiceCountKey ));
             if( num) {
 
             num = OSDynamicCast( OSNumber, table->getObject( gIOMatchedServiceCountKey ));
             if( num) {
 
@@ -3989,6 +4620,12 @@ bool IOService::passiveMatch( OSDictionary * table, bool changesOK )
 
             if( !(match = where->compareProperty( table, kIOBSDNameKey )))
                 break;
 
             if( !(match = where->compareProperty( table, kIOBSDNameKey )))
                 break;
+            if( !(match = where->compareProperty( table, kIOBSDMajorKey )))
+                break;
+            if( !(match = where->compareProperty( table, kIOBSDMinorKey )))
+                break;
+            if( !(match = where->compareProperty( table, kIOBSDUnitKey )))
+                break;
 
             matchParent = false;
 
 
             matchParent = false;
 
@@ -4015,7 +4652,7 @@ bool IOService::passiveMatch( OSDictionary * table, bool changesOK )
     } while( matchParent && (where = where->getProvider()) );
 
     if( kIOLogMatch & gIOKitDebug)
     } while( matchParent && (where = where->getProvider()) );
 
     if( kIOLogMatch & gIOKitDebug)
-        if( where != this)
+        if( where && (where != this) )
             LOG("match parent @ %s = %d\n",
                         where->getName(), match );
 
             LOG("match parent @ %s = %d\n",
                         where->getName(), match );
 
@@ -4216,7 +4853,6 @@ int IOService::errnoFromReturn( IOReturn rtn )
         case kIOReturnExclusiveAccess:
         case kIOReturnLockedRead:
         case kIOReturnLockedWrite:
         case kIOReturnExclusiveAccess:
         case kIOReturnLockedRead:
         case kIOReturnLockedWrite:
-        case kIOReturnNotAttached:
         case kIOReturnNotOpen:
         case kIOReturnNotReadable:
             return(EACCES);
         case kIOReturnNotOpen:
         case kIOReturnNotReadable:
             return(EACCES);
@@ -4229,6 +4865,7 @@ int IOService::errnoFromReturn( IOReturn rtn )
             return(EBUSY);
         case kIOReturnBadMedia:
         case kIOReturnNoMedia:
             return(EBUSY);
         case kIOReturnBadMedia:
         case kIOReturnNoMedia:
+        case kIOReturnNotAttached:
         case kIOReturnUnformattedMedia:
             return(ENXIO); // (media error)
         case kIOReturnDMAError:
         case kIOReturnUnformattedMedia:
             return(ENXIO); // (media error)
         case kIOReturnDMAError:
@@ -4329,82 +4966,190 @@ void IOService::setDeviceMemory( OSArray * array )
 void IOService::
 setCPUSnoopDelay(UInt32 __unused ns)
 {
 void IOService::
 setCPUSnoopDelay(UInt32 __unused ns)
 {
-#if __i386__
+#if defined(__i386__) || defined(__x86_64__)
     ml_set_maxsnoop(ns); 
     ml_set_maxsnoop(ns); 
-#endif /* __i386__ */
+#endif /* defined(__i386__) || defined(__x86_64__) */
 }
 
 UInt32 IOService::
 getCPUSnoopDelay()
 {
 }
 
 UInt32 IOService::
 getCPUSnoopDelay()
 {
-#if __i386__
+#if defined(__i386__) || defined(__x86_64__)
     return ml_get_maxsnoop(); 
 #else
     return 0;
     return ml_get_maxsnoop(); 
 #else
     return 0;
-#endif /* __i386__ */
+#endif /* defined(__i386__) || defined(__x86_64__) */
 }
 
 }
 
-void IOService::
-requireMaxBusStall(UInt32 __unused ns)
+#if defined(__i386__) || defined(__x86_64__)
+static void
+requireMaxCpuDelay(IOService * service, UInt32 ns, UInt32 delayType)
 {
 {
-#if __i386__
     static const UInt kNoReplace = -1U;        // Must be an illegal index
     UInt replace = kNoReplace;
     static const UInt kNoReplace = -1U;        // Must be an illegal index
     UInt replace = kNoReplace;
+    bool setCpuDelay = false;
 
 
-    IOLockLock(sBusStallLock);
+    IORecursiveLockLock(sCpuDelayLock);
 
 
-    UInt count = sBusStall->getLength() / sizeof(BusStallEntry);
-    BusStallEntry *entries = (BusStallEntry *) sBusStall->getBytesNoCopy();
+    UInt count = sCpuDelayData->getLength() / sizeof(CpuDelayEntry);
+    CpuDelayEntry *entries = (CpuDelayEntry *) sCpuDelayData->getBytesNoCopy();
+    IOService * holder = NULL;
 
     if (ns) {
 
     if (ns) {
-       const BusStallEntry ne = {this, ns};
-
-       // Set Maximum bus delay.
-       for (UInt i = 0; i < count; i++) {
-           const IOService *thisService = entries[i].fService;
-           if (this == thisService)
-               replace = i;
-           else if (!thisService) {
-               if (kNoReplace == replace)
-                   replace = i;
-           }
-           else {
-               const UInt32 thisMax = entries[i].fMaxDelay;
-               if (thisMax < ns)
-                   ns = thisMax;
-           }
-       }
-
-       // Must be safe to call from locked context
-       ml_set_maxbusdelay(ns);
-
-       if (kNoReplace == replace)
-           sBusStall->appendBytes(&ne, sizeof(ne));
-       else
-           entries[replace] = ne;
+        const CpuDelayEntry ne = {service, ns, delayType};
+       holder = service;
+        // Set maximum delay.
+        for (UInt i = 0; i < count; i++) {
+            IOService *thisService = entries[i].fService;
+            bool sameType = (delayType == entries[i].fDelayType);            
+            if ((service == thisService) && sameType)
+                replace = i;
+            else if (!thisService) {
+                if (kNoReplace == replace)
+                    replace = i;
+            }
+            else if (sameType) {
+                const UInt32 thisMax = entries[i].fMaxDelay;
+                if (thisMax < ns)
+               {
+                    ns = thisMax;
+                   holder = thisService;
+               }
+            }
+        }
+        
+        setCpuDelay = true;
+        if (kNoReplace == replace)
+            sCpuDelayData->appendBytes(&ne, sizeof(ne));
+        else
+            entries[replace] = ne;
     }
     else {
     }
     else {
-       ns = -1U;       // Set to max unsigned, i.e. no restriction
-
-       for (UInt i = 0; i < count; i++) {
-           // Clear a maximum bus delay.
-           const IOService *thisService = entries[i].fService;
-           UInt32 thisMax = entries[i].fMaxDelay;
-           if (this == thisService)
-               replace = i;
-           else if (thisService && thisMax < ns)
-               ns = thisMax;
+        ns = -1U;      // Set to max unsigned, i.e. no restriction
+
+        for (UInt i = 0; i < count; i++) {
+            // Clear a maximum delay.
+            IOService *thisService = entries[i].fService;
+            if (thisService && (delayType == entries[i].fDelayType)) {
+                UInt32 thisMax = entries[i].fMaxDelay;
+                if (service == thisService)
+                    replace = i;
+                else if (thisMax < ns) {
+                    ns = thisMax;
+                   holder = thisService;
+               }
+            }
+        }
+
+        // Check if entry found
+        if (kNoReplace != replace) {
+            entries[replace].fService = 0;     // Null the entry
+            setCpuDelay = true;
+        }
+    }
+
+    if (setCpuDelay)
+    {
+        // Must be safe to call from locked context
+        if (delayType == kCpuDelayBusStall)
+        {
+            ml_set_maxbusdelay(ns);
+        }
+        else if (delayType == kCpuDelayInterrupt)
+        {
+            ml_set_maxintdelay(ns);
+        }
+
+       OSArray * handlers = sCpuLatencyHandlers[delayType];
+       IOService * target;
+       if (handlers) for (unsigned int idx = 0; 
+                           (target = (IOService *) handlers->getObject(idx));
+                           idx++)
+       {
+           target->callPlatformFunction(sCPULatencyFunctionName[delayType], false,
+                                           (void *) (uintptr_t) ns, holder,
+                                           NULL, NULL);
        }
        }
+    }
+
+    IORecursiveLockUnlock(sCpuDelayLock);
+}
+
+static IOReturn
+setLatencyHandler(UInt32 delayType, IOService * target, bool enable)
+{
+    IOReturn result = kIOReturnNotFound;
+    OSArray * array;
+    unsigned int idx;
+
+    IORecursiveLockLock(sCpuDelayLock);
 
 
-       // Check if entry found
-       if (kNoReplace != replace) {
-           entries[replace].fService = 0;      // Null the entry
-           ml_set_maxbusdelay(ns);
+    do
+    {
+       if (enable && !sCpuLatencyHandlers[delayType])
+           sCpuLatencyHandlers[delayType] = OSArray::withCapacity(4);
+       array = sCpuLatencyHandlers[delayType];
+       if (!array)
+           break;
+       idx = array->getNextIndexOfObject(target, 0);
+       if (!enable)
+       {
+           if (-1U != idx)
+           {
+               array->removeObject(idx);
+               result = kIOReturnSuccess;
+           }
+       }
+       else
+       {
+           if (-1U != idx) {
+               result = kIOReturnExclusiveAccess;
+               break;
+           }
+           array->setObject(target);
+           
+           UInt count = sCpuDelayData->getLength() / sizeof(CpuDelayEntry);
+           CpuDelayEntry *entries = (CpuDelayEntry *) sCpuDelayData->getBytesNoCopy();
+           UInt32 ns = -1U;    // Set to max unsigned, i.e. no restriction
+           IOService * holder = NULL;
+
+           for (UInt i = 0; i < count; i++) {
+               if (entries[i].fService 
+                 && (delayType == entries[i].fDelayType) 
+                 && (entries[i].fMaxDelay < ns)) {
+                   ns = entries[i].fMaxDelay;
+                   holder = entries[i].fService;
+               }
+           }
+           target->callPlatformFunction(sCPULatencyFunctionName[delayType], false,
+                                           (void *) (uintptr_t) ns, holder,
+                                           NULL, NULL);
+           result = kIOReturnSuccess;
        }
     }
        }
     }
+    while (false);
 
 
-    IOLockUnlock(sBusStallLock);
-#endif /* __i386__ */
+    IORecursiveLockUnlock(sCpuDelayLock);
+
+    return (result);
+}
+
+#endif /* defined(__i386__) || defined(__x86_64__) */
+
+void IOService::
+requireMaxBusStall(UInt32 __unused ns)
+{
+#if defined(__i386__) || defined(__x86_64__)
+    requireMaxCpuDelay(this, ns, kCpuDelayBusStall);
+#endif
+}
+
+void IOService::
+requireMaxInterruptDelay(uint32_t __unused ns)
+{
+#if defined(__i386__) || defined(__x86_64__)
+    requireMaxCpuDelay(this, ns, kCpuDelayInterrupt);
+#endif
 }
 
 /*
 }
 
 /*
@@ -4563,13 +5308,21 @@ IOReturn IOService::causeInterrupt(int source)
   return interruptController->causeInterrupt(this, source);
 }
 
   return interruptController->causeInterrupt(this, source);
 }
 
+#if __LP64__
+OSMetaClassDefineReservedUnused(IOService, 0);
+OSMetaClassDefineReservedUnused(IOService, 1);
+OSMetaClassDefineReservedUnused(IOService, 2);
+OSMetaClassDefineReservedUnused(IOService, 3);
+OSMetaClassDefineReservedUnused(IOService, 4);
+OSMetaClassDefineReservedUnused(IOService, 5);
+#else
 OSMetaClassDefineReservedUsed(IOService, 0);
 OSMetaClassDefineReservedUsed(IOService, 1);
 OSMetaClassDefineReservedUsed(IOService, 2);
 OSMetaClassDefineReservedUsed(IOService, 3);
 OSMetaClassDefineReservedUsed(IOService, 0);
 OSMetaClassDefineReservedUsed(IOService, 1);
 OSMetaClassDefineReservedUsed(IOService, 2);
 OSMetaClassDefineReservedUsed(IOService, 3);
-
-OSMetaClassDefineReservedUnused(IOService, 4);
-OSMetaClassDefineReservedUnused(IOService, 5);
+OSMetaClassDefineReservedUsed(IOService, 4);
+OSMetaClassDefineReservedUsed(IOService, 5);
+#endif
 OSMetaClassDefineReservedUnused(IOService, 6);
 OSMetaClassDefineReservedUnused(IOService, 7);
 OSMetaClassDefineReservedUnused(IOService, 8);
 OSMetaClassDefineReservedUnused(IOService, 6);
 OSMetaClassDefineReservedUnused(IOService, 7);
 OSMetaClassDefineReservedUnused(IOService, 8);
@@ -4612,22 +5365,3 @@ OSMetaClassDefineReservedUnused(IOService, 44);
 OSMetaClassDefineReservedUnused(IOService, 45);
 OSMetaClassDefineReservedUnused(IOService, 46);
 OSMetaClassDefineReservedUnused(IOService, 47);
 OSMetaClassDefineReservedUnused(IOService, 45);
 OSMetaClassDefineReservedUnused(IOService, 46);
 OSMetaClassDefineReservedUnused(IOService, 47);
-
-#ifdef __ppc__
-OSMetaClassDefineReservedUnused(IOService, 48);
-OSMetaClassDefineReservedUnused(IOService, 49);
-OSMetaClassDefineReservedUnused(IOService, 50);
-OSMetaClassDefineReservedUnused(IOService, 51);
-OSMetaClassDefineReservedUnused(IOService, 52);
-OSMetaClassDefineReservedUnused(IOService, 53);
-OSMetaClassDefineReservedUnused(IOService, 54);
-OSMetaClassDefineReservedUnused(IOService, 55);
-OSMetaClassDefineReservedUnused(IOService, 56);
-OSMetaClassDefineReservedUnused(IOService, 57);
-OSMetaClassDefineReservedUnused(IOService, 58);
-OSMetaClassDefineReservedUnused(IOService, 59);
-OSMetaClassDefineReservedUnused(IOService, 60);
-OSMetaClassDefineReservedUnused(IOService, 61);
-OSMetaClassDefineReservedUnused(IOService, 62);
-OSMetaClassDefineReservedUnused(IOService, 63);
-#endif
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