xnu-3247.10.11.tar.gz

[apple/xnu.git] / libsa / bootstrap.cpp

diff --git a/libsa/bootstrap.cpp b/libsa/bootstrap.cpp
index c36e98fde290d15694aef66ae90409568d7a7219..02e5694d06241f4ddc42ad5f6f4dbd0f5bf9638f 100644 (file)
--- a/libsa/bootstrap.cpp
+++ b/libsa/bootstrap.cpp
@@ -131,9 +131,6 @@ private:
     void readPrelinkedExtensions(
         kernel_section_t * prelinkInfoSect);
     void readBooterExtensions(void);
-    OSReturn readMkextExtensions(
-        OSString * deviceTreeName,
-        OSData   * deviceTreeData);
     
     OSReturn loadKernelComponentKexts(void);
     void     loadKernelExternalComponents(void);
@@ -256,7 +253,7 @@ KLDBootstrap::readPrelinkedExtensions(
             "Can't find prelinked kexts' text segment.");
         goto finish;
     }
-    
+
 #if KASLR_KEXT_DEBUG
     unsigned long   scratchSize;
     vm_offset_t     scratchAddr;
@@ -458,7 +455,6 @@ finish:
 /*********************************************************************
 *********************************************************************/
 #define BOOTER_KEXT_PREFIX   "Driver-"
-#define BOOTER_MKEXT_PREFIX  "DriversPackage-"
 
 typedef struct _DeviceTreeBuffer {
     uint32_t paddr;
@@ -482,7 +478,7 @@ KLDBootstrap::readBooterExtensions(void)
     OSKextLog(/* kext */ NULL,
         kOSKextLogProgressLevel |
         kOSKextLogDirectoryScanFlag | kOSKextLogKextBookkeepingFlag,
-        "Reading startup extensions/mkexts from booter memory.");
+        "Reading startup extensions from booter memory.");
     
     booterMemoryMap = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane);
 
@@ -520,7 +516,6 @@ KLDBootstrap::readBooterExtensions(void)
     while ( ( deviceTreeName =
         OSDynamicCast(OSString, keyIterator->getNextObject() ))) {
 
-        boolean_t isMkext = FALSE;
         const char * devTreeNameCString = deviceTreeName->getCStringNoCopy();
         OSData * deviceTreeEntry = OSDynamicCast(OSData,
             propertyDict->getObject(deviceTreeName));
@@ -534,18 +529,10 @@ KLDBootstrap::readBooterExtensions(void)
             continue;
         }
 
-        /* Make sure it is either a kext or an mkext */
-        if (!strncmp(devTreeNameCString, BOOTER_KEXT_PREFIX,
-            CONST_STRLEN(BOOTER_KEXT_PREFIX))) {
-
-            isMkext = FALSE;
-
-        } else if (!strncmp(devTreeNameCString, BOOTER_MKEXT_PREFIX,
-            CONST_STRLEN(BOOTER_MKEXT_PREFIX))) {
-
-            isMkext = TRUE;
-
-        } else {
+        /* Make sure it is a kext */
+        if (strncmp(devTreeNameCString,
+                    BOOTER_KEXT_PREFIX,
+                    CONST_STRLEN(BOOTER_KEXT_PREFIX))) {
             continue;
         }
 
@@ -568,7 +555,7 @@ KLDBootstrap::readBooterExtensions(void)
             OSKextLog(/* kext */ NULL,
                 kOSKextLogErrorLevel |
                 kOSKextLogDirectoryScanFlag,
-                "Can't get virtual address for device tree mkext entry %s.",
+                "Can't get virtual address for device tree entry %s.",
                 devTreeNameCString);
             goto finish;
         }
@@ -590,16 +577,12 @@ KLDBootstrap::readBooterExtensions(void)
         }
         booterData->setDeallocFunction(osdata_phys_free);
 
-        if (isMkext) {
-            readMkextExtensions(deviceTreeName, booterData);
-        } else {
-           /* Create the kext for the entry, then release it, because the
-            * kext system keeps them around until explicitly removed.
-            * Any creation/registration failures are already logged for us.
-            */
-            OSKext * newKext = OSKext::withBooterData(deviceTreeName, booterData);
-            OSSafeRelease(newKext);
-        }
+        /* Create the kext for the entry, then release it, because the
+         * kext system keeps them around until explicitly removed.
+         * Any creation/registration failures are already logged for us.
+         */
+        OSKext * newKext = OSKext::withBooterData(deviceTreeName, booterData);
+        OSSafeRelease(newKext);
 
         booterMemoryMap->removeProperty(deviceTreeName);
 
@@ -615,49 +598,6 @@ finish:
     return;
 }
 
-/*********************************************************************
-*********************************************************************/
-OSReturn
-KLDBootstrap::readMkextExtensions(
-    OSString   * deviceTreeName,
-    OSData     * booterData)
-{
-    OSReturn result = kOSReturnError;
-
-    uint32_t          checksum;
-    IORegistryEntry * registryRoot = NULL;  // do not release
-    OSData          * checksumObj  = NULL;   // must release
-
-    OSKextLog(/* kext */ NULL,
-        kOSKextLogStepLevel |
-        kOSKextLogDirectoryScanFlag | kOSKextLogArchiveFlag,
-        "Reading startup mkext archive from device tree entry %s.",
-        deviceTreeName->getCStringNoCopy());
-
-   /* If we successfully read the archive,
-    * then save the mkext's checksum in the IORegistry.
-    * assumes we'll only ever have one mkext to boot
-    */
-    result = OSKext::readMkextArchive(booterData, &checksum);
-    if (result == kOSReturnSuccess) {
-
-        OSKextLog(/* kext */ NULL,
-            kOSKextLogProgressLevel |
-            kOSKextLogArchiveFlag,
-            "Startup mkext archive has checksum 0x%x.", (int)checksum);
-
-        registryRoot = IORegistryEntry::getRegistryRoot();
-        assert(registryRoot);
-        checksumObj = OSData::withBytes((void *)&checksum, sizeof(checksum));
-        assert(checksumObj);
-        if (checksumObj) {
-            registryRoot->setProperty(kOSStartupMkextCRC, checksumObj);
-        }
-    }
-    
-    return result;
-}
-
 /*********************************************************************
 *********************************************************************/
 #define COM_APPLE  "com.apple."