1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use. Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 * Director of Intellectual Property Licensing
21 * Office of Strategy and Technology
22 * Hewlett-Packard Company
23 * 1501 Page Mill Road
24 * Palo Alto, California 94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer. Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution. Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission. No right of
34 * sublicense is granted herewith. Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses. Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_TLB_HH__
59#define __ARCH_X86_TLB_HH__
60
61#include <list>
62#include <vector>
63#include <string>
64
65#include "arch/x86/pagetable.hh"
66#include "arch/x86/segmentregs.hh"
67#include "config/full_system.hh"
68#include "mem/mem_object.hh"
69#include "mem/request.hh"
70#include "params/X86DTB.hh"
71#include "params/X86ITB.hh"
72#include "sim/faults.hh"
73#include "sim/sim_object.hh"
74
75class ThreadContext;
76class Packet;
77
78namespace X86ISA
79{
80 class Walker;
81
82 static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS;
83
84 class TLB;
85
86 class TLB : public SimObject
87 {
88 protected:
89 friend class FakeITLBFault;
90 friend class FakeDTLBFault;
91
92 bool _allowNX;
| 1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use. Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 * Director of Intellectual Property Licensing
21 * Office of Strategy and Technology
22 * Hewlett-Packard Company
23 * 1501 Page Mill Road
24 * Palo Alto, California 94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer. Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution. Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission. No right of
34 * sublicense is granted herewith. Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses. Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_TLB_HH__
59#define __ARCH_X86_TLB_HH__
60
61#include <list>
62#include <vector>
63#include <string>
64
65#include "arch/x86/pagetable.hh"
66#include "arch/x86/segmentregs.hh"
67#include "config/full_system.hh"
68#include "mem/mem_object.hh"
69#include "mem/request.hh"
70#include "params/X86DTB.hh"
71#include "params/X86ITB.hh"
72#include "sim/faults.hh"
73#include "sim/sim_object.hh"
74
75class ThreadContext;
76class Packet;
77
78namespace X86ISA
79{
80 class Walker;
81
82 static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS;
83
84 class TLB;
85
86 class TLB : public SimObject
87 {
88 protected:
89 friend class FakeITLBFault;
90 friend class FakeDTLBFault;
91
92 bool _allowNX;
|
107#if FULL_SYSTEM
108 protected:
109
110 Walker * walker;
111
112 void walk(ThreadContext * _tc, Addr vaddr);
113#endif
114
115 public:
116 void invalidateAll();
117
118 void invalidateNonGlobal();
119
120 void demapPage(Addr va);
121
122 protected:
123 int size;
124
125 TlbEntry * tlb;
126
127 typedef std::list<TlbEntry *> EntryList;
128 EntryList freeList;
129 EntryList entryList;
130
131 template<class TlbFault>
132 Fault translate(RequestPtr &req, ThreadContext *tc,
133 bool write, bool execute);
134
135 public:
136
137 void insert(Addr vpn, TlbEntry &entry);
138
139 // Checkpointing
140 virtual void serialize(std::ostream &os);
141 virtual void unserialize(Checkpoint *cp, const std::string §ion);
142 };
143
144 class ITB : public TLB
145 {
146 public:
147 typedef X86ITBParams Params;
148 ITB(const Params *p) : TLB(p)
149 {
150 _allowNX = false;
151 }
152
153 Fault translate(RequestPtr &req, ThreadContext *tc);
154
155 friend class DTB;
156 };
157
158 class DTB : public TLB
159 {
160 public:
161 typedef X86DTBParams Params;
162 DTB(const Params *p) : TLB(p)
163 {
164 _allowNX = true;
165 }
166 Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
167#if FULL_SYSTEM
168 Tick doMmuRegRead(ThreadContext *tc, Packet *pkt);
169 Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt);
170#endif
171
172 // Checkpointing
173 virtual void serialize(std::ostream &os);
174 virtual void unserialize(Checkpoint *cp, const std::string §ion);
175 };
176}
177
178#endif // __ARCH_X86_TLB_HH__
| 110#if FULL_SYSTEM
111 protected:
112
113 Walker * walker;
114
115 void walk(ThreadContext * _tc, Addr vaddr);
116#endif
117
118 public:
119 void invalidateAll();
120
121 void invalidateNonGlobal();
122
123 void demapPage(Addr va);
124
125 protected:
126 int size;
127
128 TlbEntry * tlb;
129
130 typedef std::list<TlbEntry *> EntryList;
131 EntryList freeList;
132 EntryList entryList;
133
134 template<class TlbFault>
135 Fault translate(RequestPtr &req, ThreadContext *tc,
136 bool write, bool execute);
137
138 public:
139
140 void insert(Addr vpn, TlbEntry &entry);
141
142 // Checkpointing
143 virtual void serialize(std::ostream &os);
144 virtual void unserialize(Checkpoint *cp, const std::string §ion);
145 };
146
147 class ITB : public TLB
148 {
149 public:
150 typedef X86ITBParams Params;
151 ITB(const Params *p) : TLB(p)
152 {
153 _allowNX = false;
154 }
155
156 Fault translate(RequestPtr &req, ThreadContext *tc);
157
158 friend class DTB;
159 };
160
161 class DTB : public TLB
162 {
163 public:
164 typedef X86DTBParams Params;
165 DTB(const Params *p) : TLB(p)
166 {
167 _allowNX = true;
168 }
169 Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
170#if FULL_SYSTEM
171 Tick doMmuRegRead(ThreadContext *tc, Packet *pkt);
172 Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt);
173#endif
174
175 // Checkpointing
176 virtual void serialize(std::ostream &os);
177 virtual void unserialize(Checkpoint *cp, const std::string §ion);
178 };
179}
180
181#endif // __ARCH_X86_TLB_HH__
|