diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/SConscript | 2 | ||||
| -rw-r--r-- | src/arch/x86/X86TLB.py | 6 | ||||
| -rw-r--r-- | src/arch/x86/faults.cc | 171 | ||||
| -rw-r--r-- | src/arch/x86/faults.hh | 41 | ||||
| -rw-r--r-- | src/arch/x86/pagetable.cc | 74 | ||||
| -rw-r--r-- | src/arch/x86/pagetable.hh | 36 | ||||
| -rw-r--r-- | src/arch/x86/tlb.cc | 127 | ||||
| -rw-r--r-- | src/arch/x86/tlb.hh | 133 | ||||
| -rw-r--r-- | src/arch/x86/vtophys.hh | 3 |
9 files changed, 464 insertions, 129 deletions
diff --git a/src/arch/x86/SConscript b/src/arch/x86/SConscript index f4a8782f2..623d61aec 100644 --- a/src/arch/x86/SConscript +++ b/src/arch/x86/SConscript @@ -88,6 +88,7 @@ Import('*') if env['TARGET_ISA'] == 'x86': Source('emulenv.cc') Source('floatregfile.cc') + Source('faults.cc') Source('insts/microfpop.cc') Source('insts/microldstop.cc') Source('insts/microop.cc') @@ -95,6 +96,7 @@ if env['TARGET_ISA'] == 'x86': Source('insts/static_inst.cc') Source('intregfile.cc') Source('miscregfile.cc') + Source('pagetable.cc') Source('predecoder.cc') Source('predecoder_tables.cc') Source('regfile.cc') diff --git a/src/arch/x86/X86TLB.py b/src/arch/x86/X86TLB.py index f16408e63..ce4db4f4c 100644 --- a/src/arch/x86/X86TLB.py +++ b/src/arch/x86/X86TLB.py @@ -58,18 +58,18 @@ from m5.params import * class X86TLB(SimObject): type = 'X86TLB' abstract = True - #size = Param.Int("TLB size") + size = Param.Int("TLB size") class X86DTB(X86TLB): type = 'X86DTB' cxx_namespace = 'X86ISA' cxx_class = 'DTB' - #size = 64 + size = 64 class X86ITB(X86TLB): type = 'X86ITB' cxx_namespace = 'X86ISA' cxx_class = 'ITB' - #size = 64 + size = 64 diff --git a/src/arch/x86/faults.cc b/src/arch/x86/faults.cc new file mode 100644 index 000000000..124dcf41e --- /dev/null +++ b/src/arch/x86/faults.cc @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2003-2007 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +/* + * Copyright (c) 2007 The Hewlett-Packard Development Company + * All rights reserved. + * + * Redistribution and use of this software in source and binary forms, + * with or without modification, are permitted provided that the + * following conditions are met: + * + * The software must be used only for Non-Commercial Use which means any + * use which is NOT directed to receiving any direct monetary + * compensation for, or commercial advantage from such use. Illustrative + * examples of non-commercial use are academic research, personal study, + * teaching, education and corporate research & development. + * Illustrative examples of commercial use are distributing products for + * commercial advantage and providing services using the software for + * commercial advantage. + * + * If you wish to use this software or functionality therein that may be + * covered by patents for commercial use, please contact: + * Director of Intellectual Property Licensing + * Office of Strategy and Technology + * Hewlett-Packard Company + * 1501 Page Mill Road + * Palo Alto, California 94304 + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. Redistributions + * in binary form must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. Neither the name of + * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. No right of + * sublicense is granted herewith. Derivatives of the software and + * output created using the software may be prepared, but only for + * Non-Commercial Uses. Derivatives of the software may be shared with + * others provided: (i) the others agree to abide by the list of + * conditions herein which includes the Non-Commercial Use restrictions; + * and (ii) such Derivatives of the software include the above copyright + * notice to acknowledge the contribution from this software where + * applicable, this list of conditions and the disclaimer below. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +#include "arch/x86/faults.hh" +#include "base/trace.hh" +#include "config/full_system.hh" +#include "cpu/thread_context.hh" +#if !FULL_SYSTEM +#include "arch/x86/isa_traits.hh" +#include "mem/page_table.hh" +#include "sim/process.hh" +#endif + +namespace X86ISA +{ +#if FULL_SYSTEM + void X86Trap::invoke(TheeadContext * tc) + { + panic("X86 faults are not implemented!"); + } + + void X86Abort::invoke(TheeadContext * tc) + { + panic("X86 faults are not implemented!"); + } + + void X86Interrupt::invoke(TheeadContext * tc) + { + panic("X86 faults are not implemented!"); + } +#else // !FULL_SYSTEM + void FakeITLBFault::invoke(ThreadContext * tc) + { + DPRINTF(TLB, "Invoking an ITLB fault for address %#x at pc %#x.\n", + vaddr, tc->readPC()); + Process *p = tc->getProcessPtr(); + Addr paddr; + bool success = p->pTable->translate(vaddr, paddr); + if(!success) { + panic("Tried to execute unmapped address %#x.\n", vaddr); + } else { + TlbEntry entry; + entry.pageStart = p->pTable->pageAlign(paddr); + entry.writeable = false; + entry.user = true; + entry.uncacheable = false; + entry.global = false; + entry.patBit = 0; + entry.noExec = false; + entry.size = PageBytes; + Addr alignedVaddr = p->pTable->pageAlign(vaddr); + DPRINTF(TLB, "Mapping %#x to %#x\n", alignedVaddr, entry.pageStart); + tc->getITBPtr()->insert(alignedVaddr, entry); + } + } + + void FakeDTLBFault::invoke(ThreadContext * tc) + { + DPRINTF(TLB, "Invoking an DTLB fault for address %#x at pc %#x.\n", + vaddr, tc->readPC()); + Process *p = tc->getProcessPtr(); + Addr paddr; + bool success = p->pTable->translate(vaddr, paddr); + if(!success) { + p->checkAndAllocNextPage(vaddr); + success = p->pTable->translate(vaddr, paddr); + } + if(!success) { + panic("Tried to access unmapped address %#x.\n", vaddr); + } else { + TlbEntry entry; + entry.pageStart = p->pTable->pageAlign(paddr); + entry.writeable = true; + entry.user = true; + entry.uncacheable = false; + entry.global = false; + entry.patBit = 0; + entry.noExec = true; + entry.size = PageBytes; + Addr alignedVaddr = p->pTable->pageAlign(vaddr); + DPRINTF(TLB, "Mapping %#x to %#x\n", alignedVaddr, entry.pageStart); + tc->getDTBPtr()->insert(alignedVaddr, entry); + } + } +#endif +} // namespace X86ISA + diff --git a/src/arch/x86/faults.hh b/src/arch/x86/faults.hh index 31bb686ed..0579be9b5 100644 --- a/src/arch/x86/faults.hh +++ b/src/arch/x86/faults.hh @@ -111,10 +111,7 @@ namespace X86ISA {} #if FULL_SYSTEM - void invoke(ThreadContext * tc) - { - panic("X86 faults are not implemented!"); - } + void invoke(ThreadContext * tc); #endif }; @@ -127,10 +124,7 @@ namespace X86ISA {} #if FULL_SYSTEM - void invoke(ThreadContext * tc) - { - panic("X86 faults are not implemented!"); - } + void invoke(ThreadContext * tc); #endif }; @@ -143,10 +137,7 @@ namespace X86ISA {} #if FULL_SYSTEM - void invoke(ThreadContext * tc) - { - panic("X86 faults are not implemented!"); - } + void invoke(ThreadContext * tc); #endif }; @@ -372,18 +363,44 @@ namespace X86ISA // the tlb on a miss and are to take the place of a hardware table walker. class FakeITLBFault : public X86Fault { +#if !FULL_SYSTEM + protected: + Addr vaddr; + public: + FakeITLBFault(Addr _vaddr) : + X86Fault("fake instruction tlb fault", "itlb"), + vaddr(_vaddr) +#else public: FakeITLBFault() : X86Fault("fake instruction tlb fault", "itlb") +#endif {} + +#if !FULL_SYSTEM + void invoke(ThreadContext * tc); +#endif }; class FakeDTLBFault : public X86Fault { +#if !FULL_SYSTEM + protected: + Addr vaddr; + public: + FakeDTLBFault(Addr _vaddr) : + X86Fault("fake data tlb fault", "dtlb"), + vaddr(_vaddr) +#else public: FakeDTLBFault() : X86Fault("fake data tlb fault", "dtlb") +#endif {} + +#if !FULL_SYSTEM + void invoke(ThreadContext * tc); +#endif }; }; diff --git a/src/arch/x86/pagetable.cc b/src/arch/x86/pagetable.cc new file mode 100644 index 000000000..49aaab068 --- /dev/null +++ b/src/arch/x86/pagetable.cc @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2007 The Hewlett-Packard Development Company + * All rights reserved. + * + * Redistribution and use of this software in source and binary forms, + * with or without modification, are permitted provided that the + * following conditions are met: + * + * The software must be used only for Non-Commercial Use which means any + * use which is NOT directed to receiving any direct monetary + * compensation for, or commercial advantage from such use. Illustrative + * examples of non-commercial use are academic research, personal study, + * teaching, education and corporate research & development. + * Illustrative examples of commercial use are distributing products for + * commercial advantage and providing services using the software for + * commercial advantage. + * + * If you wish to use this software or functionality therein that may be + * covered by patents for commercial use, please contact: + * Director of Intellectual Property Licensing + * Office of Strategy and Technology + * Hewlett-Packard Company + * 1501 Page Mill Road + * Palo Alto, California 94304 + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. Redistributions + * in binary form must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. Neither the name of + * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. No right of + * sublicense is granted herewith. Derivatives of the software and + * output created using the software may be prepared, but only for + * Non-Commercial Uses. Derivatives of the software may be shared with + * others provided: (i) the others agree to abide by the list of + * conditions herein which includes the Non-Commercial Use restrictions; + * and (ii) such Derivatives of the software include the above copyright + * notice to acknowledge the contribution from this software where + * applicable, this list of conditions and the disclaimer below. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +#include "arch/x86/pagetable.hh" +#include "sim/serialize.hh" + +namespace X86ISA +{ + +void +TlbEntry::serialize(std::ostream &os) +{ +} + +void +TlbEntry::unserialize(Checkpoint *cp, const std::string §ion) +{ +} + +} diff --git a/src/arch/x86/pagetable.hh b/src/arch/x86/pagetable.hh index 8ca179c86..aaf82ed70 100644 --- a/src/arch/x86/pagetable.hh +++ b/src/arch/x86/pagetable.hh @@ -58,9 +58,14 @@ #ifndef __ARCH_X86_PAGETABLE_HH__ #define __ARCH_X86_PAGETABLE_HH__ +#include <iostream> +#include <string> + #include "sim/host.hh" #include "base/misc.hh" +class Checkpoint; + namespace X86ISA { struct VAddr @@ -68,8 +73,37 @@ namespace X86ISA VAddr(Addr a) { panic("not implemented yet."); } }; - class PageTableEntry + struct TlbEntry { + // The base of the physical page. + Addr pageStart; + // Read permission is always available, assuming it isn't blocked by + // other mechanisms. + bool writeable; + // Whether this page is accesible without being in supervisor mode. + bool user; + // Whether to use write through or write back. M5 ignores this and + // lets the caches handle the writeback policy. + //bool pwt; + // Whether the page is cacheable or not. + bool uncacheable; + // Whether or not to kick this page out on a write to CR3. + bool global; + // A bit used to form an index into the PAT table. + bool patBit; + // Whether or not memory on this page can be executed. + bool noExec; + + // The beginning of the virtual page this entry maps. + Addr vaddr; + // The size of the page this entry represents. + Addr size; + + TlbEntry() {} + TlbEntry(Addr paddr) : pageStart(paddr) {} + + void serialize(std::ostream &os); + void unserialize(Checkpoint *cp, const std::string §ion); }; } diff --git a/src/arch/x86/tlb.cc b/src/arch/x86/tlb.cc index ad23cb7e4..f4a55129b 100644 --- a/src/arch/x86/tlb.cc +++ b/src/arch/x86/tlb.cc @@ -59,8 +59,7 @@ #include "config/full_system.hh" -#if FULL_SYSTEM - +#include "arch/x86/pagetable.hh" #include "arch/x86/tlb.hh" #include "base/bitfield.hh" #include "base/trace.hh" @@ -72,21 +71,114 @@ namespace X86ISA { -TLB::TLB(const Params *p) : SimObject(p) +TLB::TLB(const Params *p) : SimObject(p), size(p->size) +{ + tlb = new TlbEntry[size]; + std::memset(tlb, 0, sizeof(TlbEntry) * size); + + for (int x = 0; x < size; x++) + freeList.push_back(&tlb[x]); +} + +void +TLB::insert(Addr vpn, TlbEntry &entry) +{ + //TODO Deal with conflicting entries + + TlbEntry *newEntry = NULL; + if (!freeList.empty()) { + newEntry = freeList.front(); + freeList.pop_front(); + } else { + newEntry = entryList.back(); + entryList.pop_back(); + } + *newEntry = entry; + newEntry->vaddr = vpn; + entryList.push_front(newEntry); +} + +TlbEntry * +TLB::lookup(Addr va, bool update_lru) +{ + //TODO make this smarter at some point + EntryList::iterator entry; + for (entry = entryList.begin(); entry != entryList.end(); entry++) { + if ((*entry)->vaddr <= va && (*entry)->vaddr + (*entry)->size > va) { + DPRINTF(TLB, "Matched vaddr %#x to entry starting at %#x " + "with size %#x.\n", va, (*entry)->vaddr, (*entry)->size); + TlbEntry *e = *entry; + if (update_lru) { + entryList.erase(entry); + entryList.push_front(e); + } + return e; + } + } + return NULL; +} + +void +TLB::invalidateAll() +{ +} + +void +TLB::invalidateNonGlobal() +{ +} + +void +TLB::demapPage(Addr va) { } Fault ITB::translate(RequestPtr &req, ThreadContext *tc) { + Addr vaddr = req->getVaddr(); + // Check against the limit of the CS segment, and permissions. + // The vaddr already has the segment base applied. + TlbEntry *entry = lookup(vaddr); + if (!entry) { +#if FULL_SYSTEM + return new FakeITLBFault(); +#else + return new FakeITLBFault(vaddr); +#endif + } else { + Addr paddr = entry->pageStart | (vaddr & mask(12)); + DPRINTF(TLB, "Translated %#x to %#x\n", vaddr, paddr); + req->setPaddr(paddr); + } + return NoFault; } - - Fault DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) { + Addr vaddr = req->getVaddr(); + uint32_t flags = req->getFlags(); + bool storeCheck = flags & StoreCheck; + int seg = flags & (mask(NUM_SEGMENTREGS)); + + //XXX Junk code to surpress the warning + if (storeCheck) seg = seg; + + // Check the limit of the segment "seg", and permissions. + // The vaddr already has the segment base applied. + TlbEntry *entry = lookup(vaddr); + if (!entry) { +#if FULL_SYSTEM + return new FakeDTLBFault(); +#else + return new FakeDTLBFault(vaddr); +#endif + } else { + Addr paddr = entry->pageStart | (vaddr & mask(12)); + req->setPaddr(paddr); + } return NoFault; }; @@ -130,31 +222,6 @@ DTB::unserialize(Checkpoint *cp, const std::string §ion) /* end namespace X86ISA */ } -#else - -#include <cstring> - -#include "arch/x86/tlb.hh" -#include "params/X86DTB.hh" -#include "params/X86ITB.hh" -#include "sim/serialize.hh" - -namespace X86ISA { - void - TlbEntry::serialize(std::ostream &os) - { - SERIALIZE_SCALAR(pageStart); - } - - void - TlbEntry::unserialize(Checkpoint *cp, const std::string §ion) - { - UNSERIALIZE_SCALAR(pageStart); - } -}; - -#endif - X86ISA::ITB * X86ITBParams::create() { diff --git a/src/arch/x86/tlb.hh b/src/arch/x86/tlb.hh index 24373c623..720b03b98 100644 --- a/src/arch/x86/tlb.hh +++ b/src/arch/x86/tlb.hh @@ -58,11 +58,11 @@ #ifndef __ARCH_X86_TLB_HH__ #define __ARCH_X86_TLB_HH__ -#include "config/full_system.hh" - -#if FULL_SYSTEM +#include <list> -#include "arch/segmentregs.hh" +#include "arch/x86/pagetable.hh" +#include "arch/x86/segmentregs.hh" +#include "config/full_system.hh" #include "mem/request.hh" #include "params/X86DTB.hh" #include "params/X86ITB.hh" @@ -76,102 +76,75 @@ namespace X86ISA { static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS; - struct TlbEntry - { - Addr pageStart; - TlbEntry() {} - TlbEntry(Addr paddr) : pageStart(paddr) {} - - void serialize(std::ostream &os); - void unserialize(Checkpoint *cp, const std::string §ion); - }; - -class TLB : public SimObject -{ - public: - typedef X86TLBParams Params; - TLB(const Params *p); - - void dumpAll(); - - // Checkpointing - virtual void serialize(std::ostream &os); - virtual void unserialize(Checkpoint *cp, const std::string §ion); -}; - -class ITB : public TLB -{ - public: - typedef X86ITBParams Params; - ITB(const Params *p) : TLB(p) - { - } - - Fault translate(RequestPtr &req, ThreadContext *tc); - - friend class DTB; -}; - -class DTB : public TLB -{ - public: - typedef X86DTBParams Params; - DTB(const Params *p) : TLB(p) + class TLB : public SimObject { - } - - Fault translate(RequestPtr &req, ThreadContext *tc, bool write); -#if FULL_SYSTEM - Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); - Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); +#if !FULL_SYSTEM + protected: + friend class FakeITLBFault; + friend class FakeDTLBFault; #endif + public: + typedef X86TLBParams Params; + TLB(const Params *p); - // Checkpointing - virtual void serialize(std::ostream &os); - virtual void unserialize(Checkpoint *cp, const std::string §ion); -}; + void dumpAll(); -} + TlbEntry *lookup(Addr va, bool update_lru = true); -#else + protected: + int size; -#include <iostream> + TlbEntry * tlb; -#include "arch/x86/segmentregs.hh" -#include "sim/host.hh" -#include "sim/tlb.hh" + typedef std::list<TlbEntry *> EntryList; + EntryList freeList; + EntryList entryList; -class Checkpoint; + void insert(Addr vpn, TlbEntry &entry); -namespace X86ISA -{ - static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS; + void invalidateAll(); - struct TlbEntry - { - Addr pageStart; - TlbEntry() {} - TlbEntry(Addr paddr) : pageStart(paddr) {} + void invalidateNonGlobal(); - void serialize(std::ostream &os); - void unserialize(Checkpoint *cp, const std::string §ion); + void demapPage(Addr va); + + public: + // Checkpointing + virtual void serialize(std::ostream &os); + virtual void unserialize(Checkpoint *cp, const std::string §ion); }; - class ITB : public GenericTLB + class ITB : public TLB { public: - ITB(const Params *p) : GenericTLB(p) - {} + typedef X86ITBParams Params; + ITB(const Params *p) : TLB(p) + { + } + + Fault translate(RequestPtr &req, ThreadContext *tc); + + friend class DTB; }; - class DTB : public GenericTLB + class DTB : public TLB { public: - DTB(const Params *p) : GenericTLB(p) - {} - }; -}; + typedef X86DTBParams Params; + DTB(const Params *p) : TLB(p) + { + } + Fault translate(RequestPtr &req, ThreadContext *tc, bool write); +#if FULL_SYSTEM + Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); + Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); #endif + // Checkpointing + virtual void serialize(std::ostream &os); + virtual void unserialize(Checkpoint *cp, const std::string §ion); + }; +} + #endif // __ARCH_X86_TLB_HH__ diff --git a/src/arch/x86/vtophys.hh b/src/arch/x86/vtophys.hh index 00d0f9499..be5e2700f 100644 --- a/src/arch/x86/vtophys.hh +++ b/src/arch/x86/vtophys.hh @@ -68,9 +68,6 @@ class FunctionalPort; namespace X86ISA { -PageTableEntry -kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, X86ISA::VAddr vaddr); - Addr vtophys(Addr vaddr); Addr vtophys(ThreadContext *tc, Addr vaddr); |