1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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38 */
39
40#include <string>
41
42#include "arch/x86/pagetable_walker.hh"
43#include "arch/x86/tlb.hh"
44#include "arch/x86/vtophys.hh"
45#include "base/trace.hh"
46#include "config/full_system.hh"
47#include "cpu/thread_context.hh"
48#include "debug/VtoPhys.hh"
49#include "sim/fault_fwd.hh"
50
51using namespace std;
52
53namespace X86ISA
54{
55 Addr
56 vtophys(Addr vaddr)
57 {
58#if FULL_SYSTEM
59 panic("Need access to page tables\n");
60#endif
61 return vaddr;
62 }
63
64 Addr
65 vtophys(ThreadContext *tc, Addr vaddr)
66 {
67#if FULL_SYSTEM
68 Walker *walker = tc->getDTBPtr()->getWalker();
69 Addr size;
70 Addr addr = vaddr;
71 Fault fault = walker->startFunctional(tc, addr, size, BaseTLB::Read);
72 if (fault != NoFault)
73 panic("vtophys page walk returned fault\n");
74 Addr masked_addr = vaddr & (size - 1);
75 Addr paddr = addr | masked_addr;
76 DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
77 return paddr;
78#endif
79 return vaddr;
80 }
81}