Changeset 53765 in vbox

Timestamp:

Jan 9, 2015 8:42:34 PM (10 years ago)

Author:

vboxsync

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

97571

Message:

mp-r0drv-nt.cpp: RTMpSpecific should only use broadcast IPIs when there are two or fewer CPUs in the system.

File:

• trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp

@@ -436 +436 @@
               : VERR_CPU_OFFLINE;
 
-    if (g_pfnrtKeIpiGenericCall)
+    if (   g_pfnrtKeIpiGenericCall
+        && RTMpGetOnlineCount() <= 2)
         return rtMpCallUsingBroadcastIpi(pfnWorker, pvUser1, pvUser2, rtmpNtOnSpecificBroadcastIpiWrapper, 0);
     return rtMpCallUsingDpcs(pfnWorker, pvUser1, pvUser2, RT_NT_CPUID_SPECIFIC, idCpu);