tlb.hh revision 5358
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IN NO EVENT SHALL THE COPYRIGHT 474120Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 484120Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 494120Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 504120Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 514120Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 524120Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 534120Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 544120Sgblack@eecs.umich.edu * 554120Sgblack@eecs.umich.edu * Authors: Gabe Black 564120Sgblack@eecs.umich.edu */ 574120Sgblack@eecs.umich.edu 584120Sgblack@eecs.umich.edu#ifndef __ARCH_X86_TLB_HH__ 594120Sgblack@eecs.umich.edu#define __ARCH_X86_TLB_HH__ 604120Sgblack@eecs.umich.edu 615124Sgblack@eecs.umich.edu#include <list> 625237Sgblack@eecs.umich.edu#include <vector> 635236Sgblack@eecs.umich.edu#include <string> 645124Sgblack@eecs.umich.edu 655124Sgblack@eecs.umich.edu#include "arch/x86/pagetable.hh" 665124Sgblack@eecs.umich.edu#include "arch/x86/segmentregs.hh" 675086Sgblack@eecs.umich.edu#include "config/full_system.hh" 685236Sgblack@eecs.umich.edu#include "mem/mem_object.hh" 695086Sgblack@eecs.umich.edu#include "mem/request.hh" 705086Sgblack@eecs.umich.edu#include "params/X86DTB.hh" 715086Sgblack@eecs.umich.edu#include "params/X86ITB.hh" 725086Sgblack@eecs.umich.edu#include "sim/faults.hh" 735358Sgblack@eecs.umich.edu#include "sim/tlb.hh" 745086Sgblack@eecs.umich.edu#include "sim/sim_object.hh" 755086Sgblack@eecs.umich.edu 765086Sgblack@eecs.umich.educlass ThreadContext; 775086Sgblack@eecs.umich.educlass Packet; 785086Sgblack@eecs.umich.edu 795086Sgblack@eecs.umich.edunamespace X86ISA 805086Sgblack@eecs.umich.edu{ 815245Sgblack@eecs.umich.edu class Walker; 825245Sgblack@eecs.umich.edu 835118Sgblack@eecs.umich.edu static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS; 845118Sgblack@eecs.umich.edu 855236Sgblack@eecs.umich.edu class TLB; 865236Sgblack@eecs.umich.edu 875358Sgblack@eecs.umich.edu class TLB : public BaseTLB 885086Sgblack@eecs.umich.edu { 895124Sgblack@eecs.umich.edu protected: 905124Sgblack@eecs.umich.edu friend class FakeITLBFault; 915124Sgblack@eecs.umich.edu friend class FakeDTLBFault; 925236Sgblack@eecs.umich.edu 935245Sgblack@eecs.umich.edu bool _allowNX; 945357Sgblack@eecs.umich.edu uint32_t configAddress; 955237Sgblack@eecs.umich.edu 965124Sgblack@eecs.umich.edu public: 975245Sgblack@eecs.umich.edu bool allowNX() const 985245Sgblack@eecs.umich.edu { 995245Sgblack@eecs.umich.edu return _allowNX; 1005245Sgblack@eecs.umich.edu } 1015245Sgblack@eecs.umich.edu 1025124Sgblack@eecs.umich.edu typedef X86TLBParams Params; 1035124Sgblack@eecs.umich.edu TLB(const Params *p); 1045086Sgblack@eecs.umich.edu 1055124Sgblack@eecs.umich.edu void dumpAll(); 1065124Sgblack@eecs.umich.edu 1075124Sgblack@eecs.umich.edu TlbEntry *lookup(Addr va, bool update_lru = true); 1085124Sgblack@eecs.umich.edu 1095357Sgblack@eecs.umich.edu void setConfigAddress(uint32_t addr); 1105357Sgblack@eecs.umich.edu 1115236Sgblack@eecs.umich.edu#if FULL_SYSTEM 1125236Sgblack@eecs.umich.edu protected: 1135236Sgblack@eecs.umich.edu 1145245Sgblack@eecs.umich.edu Walker * walker; 1155236Sgblack@eecs.umich.edu 1165245Sgblack@eecs.umich.edu void walk(ThreadContext * _tc, Addr vaddr); 1175236Sgblack@eecs.umich.edu#endif 1185236Sgblack@eecs.umich.edu 1195242Sgblack@eecs.umich.edu public: 1205242Sgblack@eecs.umich.edu void invalidateAll(); 1215242Sgblack@eecs.umich.edu 1225242Sgblack@eecs.umich.edu void invalidateNonGlobal(); 1235242Sgblack@eecs.umich.edu 1245358Sgblack@eecs.umich.edu void demapPage(Addr va, uint64_t asn); 1255242Sgblack@eecs.umich.edu 1265124Sgblack@eecs.umich.edu protected: 1275124Sgblack@eecs.umich.edu int size; 1285124Sgblack@eecs.umich.edu 1295124Sgblack@eecs.umich.edu TlbEntry * tlb; 1305124Sgblack@eecs.umich.edu 1315124Sgblack@eecs.umich.edu typedef std::list<TlbEntry *> EntryList; 1325124Sgblack@eecs.umich.edu EntryList freeList; 1335124Sgblack@eecs.umich.edu EntryList entryList; 1345124Sgblack@eecs.umich.edu 1355140Sgblack@eecs.umich.edu template<class TlbFault> 1365140Sgblack@eecs.umich.edu Fault translate(RequestPtr &req, ThreadContext *tc, 1375140Sgblack@eecs.umich.edu bool write, bool execute); 1385140Sgblack@eecs.umich.edu 1395124Sgblack@eecs.umich.edu public: 1405245Sgblack@eecs.umich.edu 1415245Sgblack@eecs.umich.edu void insert(Addr vpn, TlbEntry &entry); 1425245Sgblack@eecs.umich.edu 1435124Sgblack@eecs.umich.edu // Checkpointing 1445124Sgblack@eecs.umich.edu virtual void serialize(std::ostream &os); 1455124Sgblack@eecs.umich.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 1465086Sgblack@eecs.umich.edu }; 1475086Sgblack@eecs.umich.edu 1485124Sgblack@eecs.umich.edu class ITB : public TLB 1495124Sgblack@eecs.umich.edu { 1505124Sgblack@eecs.umich.edu public: 1515124Sgblack@eecs.umich.edu typedef X86ITBParams Params; 1525124Sgblack@eecs.umich.edu ITB(const Params *p) : TLB(p) 1535124Sgblack@eecs.umich.edu { 1545245Sgblack@eecs.umich.edu _allowNX = false; 1555124Sgblack@eecs.umich.edu } 1565086Sgblack@eecs.umich.edu 1575124Sgblack@eecs.umich.edu Fault translate(RequestPtr &req, ThreadContext *tc); 1585086Sgblack@eecs.umich.edu 1595124Sgblack@eecs.umich.edu friend class DTB; 1605124Sgblack@eecs.umich.edu }; 1615086Sgblack@eecs.umich.edu 1625124Sgblack@eecs.umich.edu class DTB : public TLB 1635086Sgblack@eecs.umich.edu { 1645124Sgblack@eecs.umich.edu public: 1655124Sgblack@eecs.umich.edu typedef X86DTBParams Params; 1665124Sgblack@eecs.umich.edu DTB(const Params *p) : TLB(p) 1675124Sgblack@eecs.umich.edu { 1685245Sgblack@eecs.umich.edu _allowNX = true; 1695124Sgblack@eecs.umich.edu } 1705124Sgblack@eecs.umich.edu Fault translate(RequestPtr &req, ThreadContext *tc, bool write); 1715086Sgblack@eecs.umich.edu#if FULL_SYSTEM 1725124Sgblack@eecs.umich.edu Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); 1735124Sgblack@eecs.umich.edu Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); 1745086Sgblack@eecs.umich.edu#endif 1755086Sgblack@eecs.umich.edu 1765124Sgblack@eecs.umich.edu // Checkpointing 1775124Sgblack@eecs.umich.edu virtual void serialize(std::ostream &os); 1785124Sgblack@eecs.umich.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 1795124Sgblack@eecs.umich.edu }; 1805086Sgblack@eecs.umich.edu} 1815086Sgblack@eecs.umich.edu 1824120Sgblack@eecs.umich.edu#endif // __ARCH_X86_TLB_HH__ 183