Changeset 57108 in vbox for trunk/src/VBox/HostDrivers/Support/darwin

Timestamp:

Jul 28, 2015 11:49:23 AM (10 years ago)

Author:

vboxsync

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

101836

Message:

supdrv: Added SUPKERNELFEATURES_SMAP to SUPR0GetKernelFeatures and document the API in the header.

File:

• trunk/src/VBox/HostDrivers/Support/darwin/SUPDrv-darwin.cpp (modified) (3 diffs)

trunk/src/VBox/HostDrivers/Support/darwin/SUPDrv-darwin.cpp

@@ -1400 +1400 @@
 }
 
+
 /**
  * Check if the CPU has SMAP support.
@@ -1417 +1418 @@
 }
 
+
 RTDECL(int) SUPR0Printf(const char *pszFormat, ...)
 {
@@ -1432 +1434 @@
 
 
-/**
- * Returns configuration flags of the host kernel.
- */
 SUPR0DECL(uint32_t) SUPR0GetKernelFeatures(void)
 {
-    return 0;
+    uint32_t fFlags = 0;
+    if (ASMGetCR4() & X86_CR4_SMAP)
+        fFlags |= SUPKERNELFEATURES_SMAP;
+    return fFlags;
 }