Changeset 54280 in vbox

Timestamp:

Feb 18, 2015 7:58:17 PM (10 years ago)

Author:

vboxsync

Message:

SUPDrv.c: Fixed bug in IDTR.LIMIT detection.

File:

• trunk/src/VBox/HostDrivers/Support/SUPDrv.c (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/SUPDrv.c

@@ -4085 +4085 @@
              */
 #ifdef RT_ARCH_X86
-            uint16_t const  cbIdt = sizeof(X86DESC64SYSTEM);
+            uint16_t const  cbIdt = sizeof(X86DESC64SYSTEM) * 256;
 #else
-            uint16_t const  cbIdt = sizeof(X86DESCGATE);
+            uint16_t const  cbIdt = sizeof(X86DESCGATE)     * 256;
 #endif
             RTIDTR          Idtr;
@@ -4145 +4145 @@
      */
     if (RT_UNLIKELY(   iCpuSet < 0
-                    || iCpuSet >= RTCPUSET_MAX_CPUS
-                    || iCpuSet >= RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
+                    || (unsigned)iCpuSet >= RTCPUSET_MAX_CPUS
+                    || (unsigned)iCpuSet >= RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
     {
         ASMAtomicCmpXchgU32(&pState->idCpuProblem, idCpu, NIL_RTCPUID);