Changeset 77378 in vbox

Timestamp:

Feb 20, 2019 1:09:21 PM (6 years ago)

Author:

vboxsync

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

128926

Message:

IEMExecLots: Poll timers every 128 instruction.

File:

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

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

@@ -14386 +14386 @@
      * Initial decoder init w/ prefetch, then setup setjmp.
      */
+    unsigned     cTimerPoll = 0;
     VBOXSTRICTRC rcStrict = iemInitDecoderAndPrefetchOpcodes(pVCpu, false);
     if (rcStrict == VINF_SUCCESS)
@@ -14443 +14444 @@
                             if (cInstr-- > 0)
                             {
-                                Assert(pVCpu->iem.s.cActiveMappings == 0);
-                                iemReInitDecoder(pVCpu);
-                                continue;
+                                /* Poll timers every 128 call*/
+                                if (   (++cTimerPoll & 0x7f) != 0
+                                    || !TMTimerPollBool(pVM, pVCpu))
+                                {
+                                    Assert(pVCpu->iem.s.cActiveMappings == 0);
+                                    iemReInitDecoder(pVCpu);
+                                    continue;
+                                }
                             }
                         }