* Copyright (c) 1998-2010 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* 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.
- *
+ *
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <libkern/c++/OSUnserialize.h>
#include <libkern/c++/OSKext.h>
+#include <libkern/section_keywords.h>
#include <libkern/version.h>
#include <IOKit/IORegistryEntry.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOUserClient.h>
#include <IOKit/IOMemoryDescriptor.h>
#include <IOKit/IOPlatformExpert.h>
+#include <IOKit/IOKernelReporters.h>
#include <IOKit/IOLib.h>
#include <IOKit/IOKitKeys.h>
#include <IOKit/IOKitDebug.h>
OSSet * gIORemoveOnReadProperties;
extern "C" {
-
-void StartIOKit( void * p1, void * p2, void * p3, void * p4 );
+void InitIOKit(void *dtTop);
+void ConfigureIOKit(void);
+void StartIOKitMatching(void);
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);
+SECURITY_READ_ONLY_LATE(static IOPlatformExpertDevice*) gRootNub;
+
#include <kern/clock.h>
#include <sys/time.h>
-void IOKitInitializeTime( void )
+void
+IOKitInitializeTime( void )
{
- mach_timespec_t t;
+ mach_timespec_t t;
t.tv_sec = 30;
t.tv_nsec = 0;
+
+// RTC is not present on this target
+#ifndef BCM2837
IOService::waitForService(
IOService::resourceMatching("IORTC"), &t );
+#endif
#if defined(__i386__) || defined(__x86_64__)
IOService::waitForService(
IOService::resourceMatching("IONVRAM"), &t );
clock_initialize_calendar();
}
-void iokit_post_constructor_init(void)
+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();
- }
+ IORegistryEntry * root;
+ OSObject * obj;
+
+ IOCPUInitialize();
+ IOPlatformActionsInitialize();
+ root = IORegistryEntry::initialize();
+ assert( root );
+ IOService::initialize();
+ IOCatalogue::initialize();
+ IOStatistics::initialize();
+ OSKext::initialize();
+ IOUserClient::initialize();
+ IOMemoryDescriptor::initialize();
+ IORootParent::initialize();
+ IOReporter::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();
+ }
}
/*****
* Pointer into bootstrap KLD segment for functions never used past startup.
*/
-void (*record_startup_extensions_function)(void) = 0;
+void (*record_startup_extensions_function)(void) = NULL;
-void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
+void
+InitIOKit(void *dtTop)
{
- IOPlatformExpertDevice * rootNub;
- int debugFlags;
-
- if( PE_parse_boot_argn( "io", &debugFlags, sizeof (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);
-
- 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
- // the initialisation path so that OS C++ can initialise independantly
- // of iokit basic service initialisation, or better we have IOLib stuff
- // initialise as basic OS services.
- //
- IOLibInit();
- OSlibkernInit();
- devsw_init();
-
- gIOProgressBackbufferKey = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey);
- gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1);
-
- interruptAccountingInit();
-
- rootNub = new IOPlatformExpertDevice;
-
- if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
- rootNub->attach( 0 );
-
- /* 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();
+ int debugFlags = 0;
+
+ if (PE_parse_boot_argn( "io", &debugFlags, sizeof(debugFlags))) {
+ gIOKitDebug = debugFlags;
+ }
+ // Enable IOWaitQuiet panics on arm64 macOS except on KASAN.
+ // existing 3rd party KEXTs may hold the registry busy on x86 RELEASE kernels.
+ // Enabling this on other platforms is tracked in rdar://66364108
+#if XNU_TARGET_OS_OSX && defined(__arm64__) && !KASAN
+ else {
+ gIOKitDebug |= kIOWaitQuietPanics;
+ }
+#endif
+
+ if (PE_parse_boot_argn( "iotrace", &debugFlags, sizeof(debugFlags))) {
+ gIOKitTrace = debugFlags;
+ }
+
+ // Compat for boot-args
+ gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs);
+
+ if (PE_parse_boot_argn( "pmtimeout", &debugFlags, sizeof(debugFlags))) {
+ gCanSleepTimeout = debugFlags;
+ }
+
+ if (PE_parse_boot_argn( "dk", &debugFlags, sizeof(debugFlags))) {
+ gIODKDebug = debugFlags;
+ }
+
+
+ //
+ // Have to start IOKit environment before we attempt to start
+ // the C++ runtime environment. At some stage we have to clean up
+ // the initialisation path so that OS C++ can initialise independantly
+ // of iokit basic service initialisation, or better we have IOLib stuff
+ // initialise as basic OS services.
+ //
+ IOLibInit();
+ OSlibkernInit();
+ IOMachPortInitialize();
+ devsw_init();
+
+ gIOProgressBackbufferKey = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey);
+ gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1);
+
+ interruptAccountingInit();
+
+ gRootNub = new IOPlatformExpertDevice;
+ if (__improbable(gRootNub == NULL)) {
+ panic("Failed to allocate IOKit root nub");
+ }
+ bool ok = gRootNub->init(dtTop);
+ if (__improbable(!ok)) {
+ panic("Failed to initialize IOKit root nub");
+ }
+ gRootNub->attach(NULL);
+
+ /* If the bootstrap segment set up a function to record startup
+ * extensions, call it now.
+ */
+ if (record_startup_extensions_function) {
+ record_startup_extensions_function();
+ }
+}
+
+void
+ConfigureIOKit(void)
+{
+ assert(gRootNub != NULL);
+ gRootNub->configureDefaults();
+}
+
+void
+StartIOKitMatching(void)
+{
+ assert(gRootNub != NULL);
+ bool ok = gRootNub->startIOServiceMatching();
+ if (__improbable(!ok)) {
+ panic("Failed to start IOService matching");
+ }
#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);
+ /* 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
- }
}
void
IORegistrySetOSBuildVersion(char * build_version)
{
- IORegistryEntry * root = IORegistryEntry::getRegistryRoot();
+ IORegistryEntry * root = IORegistryEntry::getRegistryRoot();
- if (root) {
- if (build_version) {
- root->setProperty(kOSBuildVersionKey, build_version);
- } else {
- root->removeProperty(kOSBuildVersionKey);
- }
- }
+ if (root) {
+ if (build_version) {
+ root->setProperty(kOSBuildVersionKey, build_version);
+ } else {
+ root->removeProperty(kOSBuildVersionKey);
+ }
+ }
- return;
+ return;
}
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);
-
- chosen->release();
- }
-}
+ IORegistryEntry * chosen;
+ if (((unsigned int) size) != size) {
+ return;
+ }
+ if ((chosen = IORegistryEntry::fromPath(kIODeviceTreePlane ":/chosen"))) {
+ chosen->setProperty(kIOProgressBackbufferKey, buffer, (unsigned int) size);
+ chosen->setProperty(kIOProgressColorThemeKey, theme, 32);
+
+ chosen->release();
+ }
+}
}; /* extern "C" */
projects / apple / xnu.git / blobdiff