From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 25 Feb 2009 18:18:06 +0000 (-0800)
Subject: X86: Implement inUserMode for x86.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=710b43dfbdbbaf0588d182ce0bc82a0b7db0b550;p=gem5.git

X86: Implement inUserMode for x86.
---

diff --git a/src/arch/x86/utility.hh b/src/arch/x86/utility.hh
index 477a76e0b..6f0812a6a 100644
--- 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) {