vbox的更動 9563 路徑 trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp

時間撮記:

2008-6-10 上午11:01:33 (16 年 以前)

作者:

vboxsync

訊息:

Cache the KeQueryActiveProcessors() result at init (see crash reading the mask at DPC_LEVEL in SUPDrv-win.cpp).

檔案:

• trunk/src/VBox/Runtime/r0drv/nt/mp-r0drv-nt.cpp (修改) (5 筆差異)

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

@@ -40 +40 @@
 #include <iprt/asm.h>
 #include "r0drv/mp-r0drv.h"
+#include "internal-r0drv-nt.h"
 
 
@@ -95 +96 @@
         return false;
 
-    /** @todo this must be done at init time as it's not safe under all circumstances (braindead OS design). */
+#if 0 /* this isn't safe at all IRQLs (great work guys) */
     KAFFINITY Mask = KeQueryActiveProcessors();
     return !!(Mask & RT_BIT_64(idCpu));
+#else
+    return RTCpuSetIsMember(&g_rtMpNtCpuSet, idCpu);
+#endif
 }
 
@@ -125 +129 @@
 RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
 {
+#if 0 /* this isn't safe at all IRQLs (great work guys) */
     KAFFINITY Mask = KeQueryActiveProcessors();
     return RTCpuSetFromU64(pSet, Mask);
+#else
+    *pSet = g_rtMpNtCpuSet;
+    return pSet;
+#endif
 }
 
@@ -255 +264 @@
 }
 
+
 RTDECL(int) RTMpOnAll(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)
 {
@@ -260 +270 @@
 }
 
+
 RTDECL(int) RTMpOnOthers(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)
 {
     return rtMpCall(pfnWorker, pvUser1, pvUser2, RT_NT_CPUID_OTHERS, 0);
 }
+
 
 RTDECL(int) RTMpOnSpecific(RTCPUID idCpu, PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)