X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/13f56ec4e58bf8687e2a68032c093c0213dd519b..316670eb35587141e969394ae8537d66b9211e80:/iokit/Kernel/IOBufferMemoryDescriptor.cpp

diff --git a/iokit/Kernel/IOBufferMemoryDescriptor.cpp b/iokit/Kernel/IOBufferMemoryDescriptor.cpp
index 563059600..a56b469ee 100644
--- a/iokit/Kernel/IOBufferMemoryDescriptor.cpp
+++ b/iokit/Kernel/IOBufferMemoryDescriptor.cpp
@@ -99,6 +99,8 @@ bool IOBufferMemoryDescriptor::initWithPhysicalMask(
 	return (false);
     _ranges.v64->address = 0;
     _ranges.v64->length  = 0;
+	//  make sure super::free doesn't dealloc _ranges before super::init
+	_flags = kIOMemoryAsReference;
 
     // Grab IOMD bits from the Buffer MD options
     iomdOptions  |= (options & kIOBufferDescriptorMemoryFlags);
@@ -148,6 +150,10 @@ bool IOBufferMemoryDescriptor::initWithPhysicalMask(
 	    SET_MAP_MEM(MAP_MEM_COPYBACK, memEntryCacheMode);
 	    break;
 
+	case kIOMapCopybackInnerCache:
+	    SET_MAP_MEM(MAP_MEM_INNERWBACK, memEntryCacheMode);
+	    break;
+
 	case kIOMapDefaultCache:
 	default:
 	    SET_MAP_MEM(MAP_MEM_NOOP, memEntryCacheMode);