From 11a551ae3ac179c6ce0e72dccfd4476fdf640798 Mon Sep 17 00:00:00 2001
From: Nilay Vaish <nilay@cs.wisc.edu>
Date: Sun, 22 Jul 2012 20:31:23 -0500
Subject: [PATCH] X86 CPUID: Return false if unknown processor family

---
 src/arch/x86/cpuid.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/arch/x86/cpuid.cc b/src/arch/x86/cpuid.cc
index fa5e30698..0792d8973 100644
--- a/src/arch/x86/cpuid.cc
+++ b/src/arch/x86/cpuid.cc
@@ -135,6 +135,7 @@ namespace X86ISA {
               case TLB1GBPageInfo:
               case PerformanceInfo:*/
               default:
+                warn("x86 cpuid: unimplemented function %u", funcNum);
                 return false;
             }
         } else if(family == 0x0000) {
@@ -153,9 +154,14 @@ namespace X86ISA {
                                      0xe7d3fbff, 0x00000001);
                 break;
               default:
+                warn("x86 cpuid: unimplemented function %u", funcNum);
                 return false;
             }
+        } else {
+            warn("x86 cpuid: unknown family %#x", family);
+            return false;
         }
+
         return true;
     }
 } // namespace X86ISA