Changeset 31348 in vbox for trunk/src/VBox/VMM/VMMR0/VMMR0.cpp

Timestamp:

Aug 4, 2010 8:21:17 AM (14 years ago)

Author:

vboxsync

Message:

Disable preemption when checking the shared modules

File:

• trunk/src/VBox/VMM/VMMR0/VMMR0.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMR0/VMMR0.cpp

@@ -965 +965 @@
             PVMCPU pVCpu = &pVM->aCpus[idCpu];
 
+# ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
+            RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
+            RTThreadPreemptDisable(&PreemptState);
+# elif !defined(RT_OS_WINDOWS)
+            RTCCUINTREG uFlags = ASMIntDisableFlags();
+# endif
             /* Select a valid VCPU context. */
             ASMAtomicWriteU32(&pVCpu->idHostCpu, RTMpCpuId());
@@ -982 +988 @@
             /* Clear the VCPU context. */
             ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
+# ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
+            RTThreadPreemptRestore(&PreemptState);
+# elif !defined(RT_OS_WINDOWS)
+            ASMSetFlags(uFlags);
+# endif
             return rc;
         }