kvm: Avoid synchronizing the TC on every KVM exit

Reduce the number of KVM->TC synchronizations by overloading the
getContext() method and only request an update when the TC is
requested as opposed to every time KVM returns to gem5.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cpu/base.hh b/src/cpu/base.hh
index 34e1f718c..65f596132 100644
--- a/src/cpu/base.hh
+++ b/src/cpu/base.hh
@@ -252,7 +252,7 @@ class BaseCPU : public MemObject
    int findContext(ThreadContext *tc);
 
    /// Given a thread num get tho thread context for it
-   ThreadContext *getContext(int tn) { return threadContexts[tn]; }
+   virtual ThreadContext *getContext(int tn) { return threadContexts[tn]; }
 
   public:
     typedef BaseCPUParams Params;