2 * Copyright (c) 2010 ARM Limited
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14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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43 #ifndef __ARCH_ARM_PAGETABLE_H__
44 #define __ARCH_ARM_PAGETABLE_H__
46 #include "arch/arm/isa_traits.hh"
47 #include "arch/arm/utility.hh"
48 #include "arch/arm/vtophys.hh"
49 #include "sim/serialize.hh"
55 VAddr(Addr a) { panic("not implemented yet."); }
59 // ITB/DTB page table entry
62 void serialize(std::ostream &os)
64 panic("Need to implement PTE serialization\n");
67 void unserialize(Checkpoint *cp, const std::string §ion)
69 panic("Need to implement PTE serialization\n");
74 // ITB/DTB table entry
92 Addr size; // Size of this entry, == Type of TLB Rec
93 Addr vpn; // Virtual Page Number
94 uint32_t asid; // Address Space Identifier
95 uint8_t N; // Number of bits in pagesize
100 bool nonCacheable; // Can we wrap this in mtype?
101 bool sNp; // Section descriptor
108 uint32_t attributes; // Memory attributes formatted for PAR
111 // Access permissions
112 bool xn; // Execute Never
113 uint8_t ap; // Access permissions bits
114 uint8_t domain; // Access Domain
116 //Construct an entry that maps to physical address addr for SE mode
117 TlbEntry(Addr _asn, Addr _vaddr, Addr _paddr)
119 pfn = _paddr >> PageShift;
120 size = PageBytes - 1;
125 vpn = _vaddr >> PageShift;
127 nonCacheable = sNp = false;
131 domain = DomainClient; //???
138 updateVaddr(Addr new_vaddr)
140 vpn = new_vaddr >> PageShift;
146 return pfn << PageShift;
150 match(Addr va, uint8_t cid)
153 if (valid && va >= v && va <= v + size && (global || cid == asid))
161 return (pfn << N) | (va & size);
165 serialize(std::ostream &os)
167 SERIALIZE_SCALAR(pfn);
168 SERIALIZE_SCALAR(size);
169 SERIALIZE_SCALAR(vpn);
170 SERIALIZE_SCALAR(asid);
172 SERIALIZE_SCALAR(global);
173 SERIALIZE_SCALAR(valid);
174 SERIALIZE_SCALAR(nonCacheable);
175 SERIALIZE_SCALAR(sNp);
176 SERIALIZE_ENUM(mtype);
177 SERIALIZE_SCALAR(innerAttrs);
178 SERIALIZE_SCALAR(outerAttrs);
179 SERIALIZE_SCALAR(shareable);
180 SERIALIZE_SCALAR(attributes);
181 SERIALIZE_SCALAR(xn);
182 SERIALIZE_SCALAR(ap);
183 SERIALIZE_SCALAR(domain);
186 unserialize(Checkpoint *cp, const std::string §ion)
188 UNSERIALIZE_SCALAR(pfn);
189 UNSERIALIZE_SCALAR(size);
190 UNSERIALIZE_SCALAR(vpn);
191 UNSERIALIZE_SCALAR(asid);
192 UNSERIALIZE_SCALAR(N);
193 UNSERIALIZE_SCALAR(global);
194 UNSERIALIZE_SCALAR(valid);
195 UNSERIALIZE_SCALAR(nonCacheable);
196 UNSERIALIZE_SCALAR(sNp);
197 UNSERIALIZE_ENUM(mtype);
198 UNSERIALIZE_SCALAR(innerAttrs);
199 UNSERIALIZE_SCALAR(outerAttrs);
200 UNSERIALIZE_SCALAR(shareable);
201 UNSERIALIZE_SCALAR(attributes);
202 UNSERIALIZE_SCALAR(xn);
203 UNSERIALIZE_SCALAR(ap);
204 UNSERIALIZE_SCALAR(domain);
212 #endif // __ARCH_ARM_PAGETABLE_H__