Changeset 26591 in vbox for trunk/src/VBox/Devices/EFI

Timestamp:

Feb 16, 2010 5:50:38 PM (15 years ago)

Author:

vboxsync

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

57783

Message:

EFI: better CPU frequency esteemation

File:

• trunk/src/VBox/Devices/EFI/DevEFI.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/EFI/DevEFI.cpp

@@ -40 +40 @@
 #include <iprt/path.h>
 #include <iprt/string.h>
+#include <iprt/mp.h>
 #ifdef DEBUG
 # include <iprt/stream.h>
@@ -1141 +1142 @@
      */
     // @todo: we need to have VMM API to access TSC increase speed, for now provide reasonable default
-    pThis->u64TscFrequency = 2500000000; // TMCpuTicksPerSecond(PDMDevHlpGetVM(pDevIns));
+    pThis->u64TscFrequency = RTMpGetMaxFrequency(0) * 1024 * 1024;// TMCpuTicksPerSecond(PDMDevHlpGetVM(pDevIns));
+    if (pThis->u64TscFrequency == 0)
+        pThis->u64TscFrequency = 2500000000;
     /* Multiplier is read from MSR_IA32_PERF_STATUS, and now is hardcoded as 4 */
     pThis->u64FsbFrequency = pThis->u64TscFrequency / 4;