x86: Timing support for pagetable walker

Move page table walker state to its own object type, and make the
walker instantiate state for each outstanding walk. By storing the
states in a queue, the walker is able to handle multiple outstanding
timing requests. Note that functional walks use separate state
elements.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/arch/x86/tlb.hh b/src/arch/x86/tlb.hh
index 0e96b26b8..965d331ba 100644
--- a/src/arch/x86/tlb.hh
+++ b/src/arch/x86/tlb.hh
@@ -89,6 +89,8 @@ namespace X86ISA
       protected:
 
         Walker * walker;
+      public:
+        Walker *getWalker();
 #endif
 
       public: