Changeset 68019 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Jul 18, 2017 12:44:53 PM (7 years ago)

Author:

vboxsync

Message:

TMAllCpu.cpp: Removed some weirness from the TSC calc code.

File:

• trunk/src/VBox/VMM/VMMAll/TMAllCpu.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/TMAllCpu.cpp

@@ -49 +49 @@
     else
         u64 = TMVirtualSyncGetNoCheck(pVM);
-    if (u64 != TMCLOCK_FREQ_VIRTUAL) /* what's the use of this test, document! */
-        u64 = ASMMultU64ByU32DivByU32(u64, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL);
-    return u64;
+    return ASMMultU64ByU32DivByU32(u64, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL);
 }
 
@@ -385 +383 @@
         uint64_t cNsToDeadline;
         uint64_t u64NowVirtSync = TMVirtualSyncGetWithDeadlineNoCheck(pVM, &cNsToDeadline);
-        uint64_t u64Now = u64NowVirtSync != TMCLOCK_FREQ_VIRTUAL /* what's the use of this? */
-                        ? ASMMultU64ByU32DivByU32(u64NowVirtSync, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL)
-                        : u64NowVirtSync;
+        uint64_t u64Now = ASMMultU64ByU32DivByU32(u64NowVirtSync, pVM->tm.s.cTSCTicksPerSecond, TMCLOCK_FREQ_VIRTUAL)
         u64Now -= pVCpu->tm.s.offTSCRawSrc;
         *poffRealTsc     = u64Now - ASMReadTSC();