+ class Walker;
+
+ class TLB : public BaseTLB
+ {
+ protected:
+ friend class Walker;
+
+ typedef std::list<TlbEntry *> EntryList;
+
+ uint32_t configAddress;
+
+ public:
+
+ typedef X86TLBParams Params;
+ TLB(const Params *p);
+
+ void takeOverFrom(BaseTLB *otlb) override {}
+
+ TlbEntry *lookup(Addr va, bool update_lru = true);
+
+ void setConfigAddress(uint32_t addr);
+
+ protected:
+
+ EntryList::iterator lookupIt(Addr va, bool update_lru = true);
+
+ Walker * walker;
+
+ public:
+ Walker *getWalker();
+
+ void flushAll() override;
+
+ void flushNonGlobal();
+
+ void demapPage(Addr va, uint64_t asn) override;
+
+ protected:
+ uint32_t size;
+
+ std::vector<TlbEntry> tlb;
+
+ EntryList freeList;
+
+ TlbEntryTrie trie;
+ uint64_t lruSeq;
+
+ Fault translateInt(RequestPtr req, ThreadContext *tc);
+
+ Fault translate(RequestPtr req, ThreadContext *tc,
+ Translation *translation, Mode mode,
+ bool &delayedResponse, bool timing);
+
+ public:
+
+ void evictLRU();
+
+ uint64_t
+ nextSeq()
+ {
+ return ++lruSeq;
+ }
+
+ Fault translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode);
+ void translateTiming(RequestPtr req, ThreadContext *tc,
+ Translation *translation, Mode mode);
+ /** Stub function for compilation support of CheckerCPU. x86 ISA does
+ * not support Checker model at the moment
+ */
+ Fault translateFunctional(RequestPtr req, ThreadContext *tc, Mode mode);
+
+ /**
+ * Do post-translation physical address finalization.
+ *
+ * Some addresses, for example requests going to the APIC,
+ * need post-translation updates. Such physical addresses are
+ * remapped into a "magic" part of the physical address space
+ * by this method.
+ *
+ * @param req Request to updated in-place.
+ * @param tc Thread context that created the request.
+ * @param mode Request type (read/write/execute).
+ * @return A fault on failure, NoFault otherwise.
+ */
+ Fault finalizePhysical(RequestPtr req, ThreadContext *tc,
+ Mode mode) const;
+
+ TlbEntry * insert(Addr vpn, TlbEntry &entry);
+
+ // Checkpointing
+ void serialize(CheckpointOut &cp) const override;
+ void unserialize(CheckpointIn &cp) override;
+
+ /**
+ * Get the table walker master port. This is used for
+ * migrating port connections during a CPU takeOverFrom()
+ * call. For architectures that do not have a table walker,
+ * NULL is returned, hence the use of a pointer rather than a
+ * reference. For X86 this method will always return a valid
+ * port pointer.
+ *
+ * @return A pointer to the walker master port
+ */
+ BaseMasterPort *getMasterPort() override;
+ };
+}