Changeset 23367 in vbox

Timestamp:

Sep 28, 2009 12:34:40 PM (16 years ago)

Author:

vboxsync

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

52891

Message:

Experiment with HalRequestIpi

File:

• trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp (modified) (4 diffs)

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

@@ -349 +349 @@
 
 
+extern "C" HalRequestIpi(KAFFINITY TargetSet);
+
 RTDECL(int) RTMpPokeCpu(RTCPUID idCpu)
 {
@@ -356 +358 @@
               : VERR_CPU_OFFLINE;
 
+#if 1 /* experiment!! */
+    HalRequestIpi(1 << idCpu);
+    return VINF_SUCCESS;
+#else
     if (!fPokeDPCsInitialized)
     {
@@ -373 +379 @@
     KeRaiseIrql(DISPATCH_LEVEL, &oldIrql);
 
+    KeSetImportanceDpc(&aPokeDpcs[idCpu], HighImportance);
+    KeSetTargetProcessorDpc(&aPokeDpcs[idCpu], (int)idCpu);
+
     /* Assuming here that high importance DPCs will be delivered immediately; or at least an IPI will be sent immediately.
      * Todo: verify!
@@ -380 +389 @@
     KeLowerIrql(oldIrql);
     return (bRet == TRUE) ? VINF_SUCCESS : VERR_ACCESS_DENIED /* already queued */;
+#endif
 }