summaryrefslogtreecommitdiff
path: root/src/arch/mips/system.cc
blob: c1735b74074e753f8e619f1c0eb5e65e9a660994 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/*
 * Copyright (c) 2002-2005 The Regents of The University of Michigan
 * Copyright (c) 2007 MIPS Technologies, Inc.
 * 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: Ali Saidi
 *          Nathan Binkert
 *          Jaidev Patwardhan
 */

#include "arch/mips/system.hh"
#include "arch/vtophys.hh"
#include "base/loader/hex_file.hh"
#include "base/loader/object_file.hh"
#include "base/loader/symtab.hh"
#include "base/trace.hh"
#include "mem/physical.hh"
#include "params/MipsSystem.hh"
#include "sim/byteswap.hh"

using namespace LittleEndianGuest;

MipsSystem::MipsSystem(Params *p) : System(p)
{

#if FULL_SYSTEM
    if (p->bare_iron == true) {
        hexFile = new HexFile(params()->hex_file_name);
        if (!hexFile->loadSections(functionalPort))
            panic("Could not load hex file\n");
    }

    Addr addr = 0;

    consoleSymtab = new SymbolTable;


    /**
     * Load the console code into memory
     */
    //    Load Console Code
    console = createObjectFile(params()->console);

    warn("console code is located at: %s\n", params()->console);

    if (console == NULL)
        fatal("Could not load console file %s", params()->console);
    //Load program sections into memory
    console->loadSections(functionalPort, loadAddrMask);

    //load symbols
    if (!console->loadGlobalSymbols(consoleSymtab))
        panic("could not load console symbols\n");

    if (!console->loadGlobalSymbols(debugSymbolTable))
        panic("could not load console symbols\n");


#ifndef NDEBUG
    consolePanicEvent = addConsoleFuncEvent<BreakPCEvent>("panic");
#endif

    /**
     * Copy the osflags (kernel arguments) into the consoles
     * memory. (Presently Linux does not use the console service
     * routine to get these command line arguments, but Tru64 and
     * others do.)
     */
    if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
        warn("writing addr starting from %#x", addr);
        virtPort->writeBlob(addr, (uint8_t*)params()->boot_osflags.c_str(),
                strlen(params()->boot_osflags.c_str()));
    }

    /**
     * Set the hardware reset parameter block system type and revision
     * information to Tsunami.
     */
    if (consoleSymtab->findAddress("m5_rpb", addr)) {
        uint64_t data;
        data = htog(params()->system_type);
        virtPort->write(addr + 0x50, data);
        data = htog(params()->system_rev);
        virtPort->write(addr + 0x58, data);
    } else {
        panic("could not find hwrpb\n");
    }
#endif
}

MipsSystem::~MipsSystem()
{
}

#if FULL_SYSTEM
Addr
MipsSystem::fixFuncEventAddr(Addr addr)
{
    return addr;
}

void
MipsSystem::setMipsAccess(Addr access)
{}

#endif

bool
MipsSystem::breakpoint()
{
    return 0;
}

void
MipsSystem::serialize(std::ostream &os)
{
    System::serialize(os);
}


void
MipsSystem::unserialize(Checkpoint *cp, const std::string &section)
{
    System::unserialize(cp,section);
}

MipsSystem *
MipsSystemParams::create()
{
    return new MipsSystem(this);
}