X86: Implement inUserMode for x86.

2009-02-25 10:18:06 -08:00 · 2009-02-25 10:18:06 -08:00 · 710b43dfbd
commit 710b43dfbd
parent 1cedc748d4
1 changed files with 6 additions and 1 deletions
--- a/src/arch/x86/utility.hh
+++ b/src/arch/x86/utility.hh
@ -93,7 +93,12 @@ namespace X86ISA
    static inline bool
    inUserMode(ThreadContext *tc)
    {
-        return false;
+#if FULL_SYSTEM
+        HandyM5Reg m5reg = tc->readMiscRegNoEffect(MISCREG_M5_REG);
+        return m5reg.cpl == 3;
+#else
+        return true;
+#endif
    }

    inline bool isCallerSaveIntegerRegister(unsigned int reg) {