X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/440d4c6cfad24426bfddca7518f16c17f4e443f7..99c3a10404e5d1ef94397ab4df5a8b74711fc4d3:/iokit/Kernel/IOPlatformExpert.cpp

diff --git a/iokit/Kernel/IOPlatformExpert.cpp b/iokit/Kernel/IOPlatformExpert.cpp
index 03779d4b1..e7f393474 100644
--- a/iokit/Kernel/IOPlatformExpert.cpp
+++ b/iokit/Kernel/IOPlatformExpert.cpp
@@ -105,7 +105,9 @@ bool IOPlatformExpert::start( IOService * provider )
     // Override the mapper present flag is requested by boot arguments.
     if (PE_parse_boot_argn("dart", &debugFlags, sizeof (debugFlags)) && (debugFlags == 0))
       removeProperty(kIOPlatformMapperPresentKey);
-    
+    if (PE_parse_boot_argn("-x", &debugFlags, sizeof (debugFlags)))
+      removeProperty(kIOPlatformMapperPresentKey);
+
     // Register the presence or lack thereof a system 
     // PCI address mapper with the IOMapper class
     IOMapper::setMapperRequired(0 != getProperty(kIOPlatformMapperPresentKey));