system.cc revision 1782 
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/**
30 * @file
31 * Modifications for the FreeBSD kernel.  Based off of kern/linux/linux_system.cc.
32 * Currently only used to skip DELAY function. -Ben
33 *
34 */
35
36#include "base/loader/symtab.hh"
37#include "base/trace.hh"
38#include "cpu/exec_context.hh"
39#include "cpu/base.hh"
40#include "kern/freebsd/freebsd_system.hh"
41#include "kern/system_events.hh"
42#include "mem/functional/memory_control.hh"
43#include "mem/functional/physical.hh"
44#include "sim/builder.hh"
45#include "dev/platform.hh"
46#include "targetarch/isa_traits.hh"
47#include "targetarch/vtophys.hh"
48#include "sim/debug.hh"
49
50using namespace std;
51
52FreebsdSystem::FreebsdSystem(Params *p)
53    : System(p)
54{
55    Addr addr = 0;
56
57    /**
58     * Any time ide_delay_50ms, calibarte_delay or
59     * determine_cpu_caches is called just skip the
60     * function. Currently determine_cpu_caches only is used put
61     * information in proc, however if that changes in the future we
62     * will have to fill in the cache size variables appropriately.
63     */
64    skipDelayEvent = new SkipFuncEvent(&pcEventQueue, "DELAY");
65    if (kernelSymtab->findAddress("DELAY", addr))
66        skipDelayEvent->schedule(addr+sizeof(MachInst));
67}
68
69FreebsdSystem::~FreebsdSystem()
70{
71    delete skipDelayEvent;
72}
73
74
75BEGIN_DECLARE_SIM_OBJECT_PARAMS(FreebsdSystem)
76
77    Param<Tick> boot_cpu_frequency;
78    SimObjectParam<MemoryController *> memctrl;
79    SimObjectParam<PhysicalMemory *> physmem;
80
81    Param<string> kernel;
82    Param<string> console;
83    Param<string> pal;
84
85    Param<string> boot_osflags;
86    Param<string> readfile;
87    Param<unsigned int> init_param;
88
89    Param<uint64_t> system_type;
90    Param<uint64_t> system_rev;
91
92    Param<bool> bin;
93    VectorParam<string> binned_fns;
94    Param<bool> bin_int;
95
96END_DECLARE_SIM_OBJECT_PARAMS(FreebsdSystem)
97
98BEGIN_INIT_SIM_OBJECT_PARAMS(FreebsdSystem)
99
100    INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"),
101    INIT_PARAM(memctrl, "memory controller"),
102    INIT_PARAM(physmem, "phsyical memory"),
103    INIT_PARAM(kernel, "file that contains the kernel code"),
104    INIT_PARAM(console, "file that contains the console code"),
105    INIT_PARAM(pal, "file that contains palcode"),
106    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
107                    "a"),
108    INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
109    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
110    INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
111    INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10),
112    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
113    INIT_PARAM(binned_fns, "functions to be broken down and binned"),
114    INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true)
115
116END_INIT_SIM_OBJECT_PARAMS(FreebsdSystem)
117
118CREATE_SIM_OBJECT(FreebsdSystem)
119{
120    System::Params *p = new System::Params;
121    p->name = getInstanceName();
122    p->boot_cpu_frequency = boot_cpu_frequency;
123    p->memctrl = memctrl;
124    p->physmem = physmem;
125    p->kernel_path = kernel;
126    p->console_path = console;
127    p->palcode = pal;
128    p->boot_osflags = boot_osflags;
129    p->init_param = init_param;
130    p->readfile = readfile;
131    p->system_type = system_type;
132    p->system_rev = system_rev;
133    p->bin = bin;
134    p->binned_fns = binned_fns;
135    p->bin_int = bin_int;
136    return new FreebsdSystem(p);
137}
138
139REGISTER_SIM_OBJECT("FreebsdSystem", FreebsdSystem)
140
141