xnu-3789.31.2.tar.gz

[apple/xnu.git] / iokit / Kernel / IOStartIOKit.cpp

diff --git a/iokit/Kernel/IOStartIOKit.cpp b/iokit/Kernel/IOStartIOKit.cpp
index 010c14c5926caecd034677bc956781465a7da47d..f9d9fc01834e52d643a45608f7b30b85feb9833c 100644 (file)
--- a/iokit/Kernel/IOStartIOKit.cpp
+++ b/iokit/Kernel/IOStartIOKit.cpp
@@ -1,32 +1,33 @@
 /*
 /*

- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 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@
- */
-/*
- * Copyright (c) 1998,1999 Apple Computer, Inc.  All rights reserved. 
- *
- * HISTORY
- *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 
 #include <libkern/c++/OSUnserialize.h>
  */
 
 #include <libkern/c++/OSUnserialize.h>

+#include <libkern/c++/OSKext.h>

 #include <libkern/version.h>
 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <libkern/version.h>
 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>


@@ -37,18 +38,33 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>

-
+#include <IOKit/pwr_mgt/RootDomain.h>
+#include <IOKit/pwr_mgt/IOPMinformeeList.h>
+#include <IOKit/IOStatisticsPrivate.h>
+#include <IOKit/IOKitKeysPrivate.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>

 #include <IOKit/assert.h>
 #include <IOKit/assert.h>

+#include <sys/conf.h>

 
 #include "IOKitKernelInternal.h"
 
 
 #include "IOKitKernelInternal.h"
 

+const OSSymbol * gIOProgressBackbufferKey;
+OSSet *          gIORemoveOnReadProperties;
+

 extern "C" {
 
 extern "C" {
 

+void StartIOKit( void * p1, void * p2, void * p3, void * p4 );
+void IORegistrySetOSBuildVersion(char * build_version);
+void IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme);
+

 extern void OSlibkernInit (void);
 
 extern void OSlibkernInit (void);
 

+void iokit_post_constructor_init(void);
+

 #include <kern/clock.h>
 #include <kern/clock.h>

+#include <sys/time.h>

 
 

-void IOKitResetTime( void )
+void IOKitInitializeTime( void )

 {
        mach_timespec_t         t;
 
 {
        mach_timespec_t         t;
 


@@ -56,7 +72,7 @@ void IOKitResetTime( void )
        t.tv_nsec = 0;
        IOService::waitForService(
                IOService::resourceMatching("IORTC"), &t );
        t.tv_nsec = 0;
        IOService::waitForService(
                IOService::resourceMatching("IORTC"), &t );

-#ifndef i386
+#if defined(__i386__) || defined(__x86_64__)

        IOService::waitForService(
                IOService::resourceMatching("IONVRAM"), &t );
 #endif
        IOService::waitForService(
                IOService::resourceMatching("IONVRAM"), &t );
 #endif


@@ -64,28 +80,69 @@ void IOKitResetTime( void )
     clock_initialize_calendar();
 }
 
     clock_initialize_calendar();
 }
 

+void iokit_post_constructor_init(void)
+{
+    IORegistryEntry *          root;
+    OSObject *                 obj;
+
+    IOCPUInitialize();
+    root = IORegistryEntry::initialize();
+    assert( root );
+    IOService::initialize();
+    IOCatalogue::initialize();
+    IOStatistics::initialize();
+    OSKext::initialize();
+    IOUserClient::initialize();
+    IOMemoryDescriptor::initialize();
+    IORootParent::initialize();
+
+    // Initializes IOPMinformeeList class-wide shared lock
+    IOPMinformeeList::getSharedRecursiveLock();
+
+    obj = OSString::withCString( version );
+    assert( obj );
+    if( obj ) {
+        root->setProperty( kIOKitBuildVersionKey, obj );
+       obj->release();
+    }
+    obj = IOKitDiagnostics::diagnostics();
+    if( obj ) {
+        root->setProperty( kIOKitDiagnosticsKey, obj );
+       obj->release();
+    }
+}
+

 // From <osfmk/kern/debug.c>
 extern int debug_mode;
 
 // From <osfmk/kern/debug.c>
 extern int debug_mode;
 

+/*****
+ * Pointer into bootstrap KLD segment for functions never used past startup.
+ */
+void (*record_startup_extensions_function)(void) = 0;
+

 void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
 {
     IOPlatformExpertDevice *   rootNub;
     int                                debugFlags;
 void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
 {
     IOPlatformExpertDevice *   rootNub;
     int                                debugFlags;

-    IORegistryEntry *          root;
-    OSObject *                 obj;
-    extern const char *         gIOKernelKmods;
-    OSString *                  errorString = NULL; // must release
-    OSDictionary *              fakeKmods;  // must release
-    OSCollectionIterator *      kmodIter;   // must release
-    OSString *                  kmodName;   // don't release

 
 

-    if( PE_parse_boot_arg( "io", &debugFlags ))
+    if( PE_parse_boot_argn( "io", &debugFlags, sizeof (debugFlags) ))

        gIOKitDebug = debugFlags;
        gIOKitDebug = debugFlags;

-
+#if DEVELOPMENT || DEBUG
+    else gIOKitDebug |= kIOWaitQuietPanics;
+#endif /* DEVELOPMENT || DEBUG */
+       
+    if( PE_parse_boot_argn( "iotrace", &debugFlags, sizeof (debugFlags) ))
+       gIOKitTrace = debugFlags;
+       
+    // Compat for boot-args
+    gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs);
+       

     // Check for the log synchronous bit set in io
     if (gIOKitDebug & kIOLogSynchronous)
         debug_mode = true;
 
     // Check for the log synchronous bit set in io
     if (gIOKitDebug & kIOLogSynchronous)
         debug_mode = true;
 

+    if( PE_parse_boot_argn( "pmtimeout", &debugFlags, sizeof (debugFlags) ))
+        gCanSleepTimeout = debugFlags;

     //
     // Have to start IOKit environment before we attempt to start
     // the C++ runtime environment.  At some stage we have to clean up
     //
     // Have to start IOKit environment before we attempt to start
     // the C++ runtime environment.  At some stage we have to clean up


@@ -95,84 +152,64 @@ void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
     //
     IOLibInit(); 
     OSlibkernInit();
     //
     IOLibInit(); 
     OSlibkernInit();

+    devsw_init();

 
 

-   /*****
-    * Declare the fake kmod_info structs for built-in components
-    * that must be tracked as independent units for dependencies.
-    */
-    fakeKmods = OSDynamicCast(OSDictionary,
-        OSUnserialize(gIOKernelKmods, &errorString));
-
-    if (!fakeKmods) {
-        if (errorString) {
-            panic("Kernel kmod list syntax error: %s\n",
-                    errorString->getCStringNoCopy());
-            errorString->release();
-        } else {
-            panic("Error loading kernel kmod list.\n");
-        }
-    }
+    gIOProgressBackbufferKey  = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey);
+    gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1);

 
 

-    kmodIter = OSCollectionIterator::withCollection(fakeKmods);
-    if (!kmodIter) {
-        panic("Can't declare in-kernel kmods.\n");
-    }
-    while ((kmodName = OSDynamicCast(OSString, kmodIter->getNextObject()))) {
-
-        OSString * kmodVersion = OSDynamicCast(OSString,
-            fakeKmods->getObject(kmodName));
-        if (!kmodVersion) {
-            panic("Can't declare in-kernel kmod; \"%s\" has "
-                "an invalid version.\n",
-                kmodName->getCStringNoCopy());
-        }
+    interruptAccountingInit();

 
 

-       // empty version strings get replaced with current kernel version
-       const char *vers = (strlen(kmodVersion->getCStringNoCopy())
-                                ? kmodVersion->getCStringNoCopy()
-                                : osrelease);
+    rootNub = new IOPlatformExpertDevice;

 
 

-        if (KERN_SUCCESS != kmod_create_fake(kmodName->getCStringNoCopy(), vers)) {
-            panic("Failure declaring in-kernel kmod \"%s\".\n",
-                kmodName->getCStringNoCopy());
-        }
-    }
+    if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
+        rootNub->attach( 0 );

 
 

-    kmodIter->release();
-    fakeKmods->release();
+       /* If the bootstrap segment set up a function to record startup
+        * extensions, call it now.
+        */
+        if (record_startup_extensions_function) {
+            record_startup_extensions_function();
+        }

 
 

+        rootNub->registerService();

 
 

+#if !NO_KEXTD
+       /* Add a busy count to keep the registry busy until kextd has
+        * completely finished launching. This is decremented when kextd
+        * messages the kernel after the in-kernel linker has been
+        * removed and personalities have been sent.
+        */
+        IOService::getServiceRoot()->adjustBusy(1);
+#endif
+    }
+}

 
 

-    root = IORegistryEntry::initialize();
-    assert( root );
-    IOService::initialize();
-    IOCatalogue::initialize();
-    IOUserClient::initialize();
-    IOMemoryDescriptor::initialize();
+void
+IORegistrySetOSBuildVersion(char * build_version)
+{
+    IORegistryEntry * root = IORegistryEntry::getRegistryRoot();

 
 

-    obj = OSString::withCString( version );
-    assert( obj );
-    if( obj ) {
-        root->setProperty( kIOKitBuildVersionKey, obj );
-       obj->release();
-    }
-    obj = IOKitDiagnostics::diagnostics();
-    if( obj ) {
-        root->setProperty( kIOKitDiagnosticsKey, obj );
-       obj->release();
+    if (root) {
+        if (build_version) {
+            root->setProperty(kOSBuildVersionKey, build_version);
+        } else {
+            root->removeProperty(kOSBuildVersionKey);
+        }

     }
 
     }
 

-    rootNub = new IOPlatformExpertDevice;
-
-    if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
-        rootNub->attach( 0 );
+    return;
+}

 
 

-       /* Enter into the catalogue the drivers
-        * provided by BootX.
-        */
-        gIOCatalogue->recordStartupExtensions();
+void
+IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme)
+{
+    IORegistryEntry * chosen;
+    if ((chosen = IORegistryEntry::fromPath(kIODeviceTreePlane ":/chosen")))
+    {
+        chosen->setProperty(kIOProgressBackbufferKey, buffer, size);
+       chosen->setProperty(kIOProgressColorThemeKey, theme, 32);

 
 

-        rootNub->registerService();
+        chosen->release();

     }
 }
 
     }
 }