testboxscript

Timestamp:

Nov 21, 2017 2:48:12 PM (7 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

119212

Message:

testboxscript/TestBoxHelper.cpp: Use kern.hv_support to detect nested paging on darwin.

File:

trunk/src/VBox/ValidationKit/testboxscript/TestBoxHelper.cpp

-              r69111
+              r69794
+        }
+    }
+# elif defined(RT_OS_DARWIN)
+    else if (enmHwVirt == HWVIRTTYPE_VTX)
+    {
+        /*
+         * The kern.hv_support parameter indicates support for the hypervisor API in the
+         * kernel, which in turn is documented require nested paging and unrestricted
+         * guest mode.  So, if it's there and set we've got nested paging.  Howeber, if
+         * it's there and clear we have not definite answer as it might be due to lack
+         * of unrestricted guest mode support.
+         */
+        int32_t fHvSupport = 0;
+        size_t  cbOld = sizeof(fHvSupport);
+        if (sysctlbyname("kern.hv_support", &fHvSupport, &cbOld, NULL, 0) == 0)
+        {
+            if (fHvSupport != 0)
+                fSupported = true;
+        }
+    }
 # endif
 #endif

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