Changeset 53288 in vbox

Timestamp:

Nov 10, 2014 1:21:12 PM (10 years ago)

Author:

vboxsync

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

96867

Message:

HostDrivers/Support: Don't bother with deltas just yet while measuring the TSC frequency, breaks async systems which are actually invariant.

File:

• trunk/src/VBox/HostDrivers/Support/SUPDrv.c (modified) (4 diffs)

trunk/src/VBox/HostDrivers/Support/SUPDrv.c

@@ -5972 +5972 @@
         ASMSetFlags(uFlags);
 
+        /* Activate this when implemented invariant TSC GIP mode. Otherwise systems that are really invariant
+           which get detected as async will break. */
+#if 0
         if (supdrvIsInvariantTsc())
         {
@@ -5985 +5988 @@
         }
         else
+#endif
         {
             /* Busy-wait keeping the frequency up and measure. */
@@ -6002 +6006 @@
         ASMSetFlags(uFlags);
 
-        /** @todo replace with enum check. */
-        if (supdrvIsInvariantTsc())
+        /* Activate this when implemented invariant TSC GIP mode. Otherwise systems that are really invariant
+           which get detected as async will break. */
+#if 0
+        if (supdrvIsInvariantTsc())        /** @todo replace with enum check. */
         {
             int rc;
@@ -6019 +6025 @@
             }
         }
+#endif
 
         /*