1/*
2 * Copyright (c) 2007-2008 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Authors: Gabe Black
38 */
39
| 1/*
2 * Copyright (c) 2007-2008 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Authors: Gabe Black
38 */
39
|
47
48
49using namespace LittleEndianGuest;
50using namespace X86ISA;
51
52LinuxX86System::LinuxX86System(Params *p)
53 : X86System(p), commandLine(p->boot_osflags), e820Table(p->e820_table)
54{
55}
56
57LinuxX86System::~LinuxX86System()
58{
59}
60
61void
62LinuxX86System::initState()
63{
64 X86System::initState();
65
66 // The location of the real mode data structure.
67 const Addr realModeData = 0x90200;
68
69 // A port to write to memory.
70 FunctionalPort * physPort = threadContexts[0]->getPhysPort();
71
72 /*
73 * Deal with the command line stuff.
74 */
75
76 // A buffer to store the command line.
77 const Addr commandLineBuff = 0x90000;
78 // A pointer to the commandLineBuff stored in the real mode data.
79 const Addr commandLinePointer = realModeData + 0x228;
80
81 if (commandLine.length() + 1 > realModeData - commandLineBuff)
82 panic("Command line \"%s\" is longer than %d characters.\n",
83 commandLine, realModeData - commandLineBuff - 1);
84 physPort->writeBlob(commandLineBuff,
85 (uint8_t *)commandLine.c_str(), commandLine.length() + 1);
86
87 // Generate a pointer of the right size and endianness to put into
88 // commandLinePointer.
89 uint32_t guestCommandLineBuff =
90 X86ISA::htog((uint32_t)commandLineBuff);
91 physPort->writeBlob(commandLinePointer,
92 (uint8_t *)&guestCommandLineBuff, sizeof(guestCommandLineBuff));
93
94 /*
95 * Screen Info.
96 */
97
98 // We'll skip on this for now because it's only needed for framebuffers,
99 // something we don't support at the moment.
100
101 /*
102 * EDID info
103 */
104
105 // Skipping for now.
106
107 /*
108 * Saved video mode
109 */
110
111 // Skipping for now.
112
113 /*
114 * Loader type.
115 */
116
117 // Skipping for now.
118
119 /*
120 * E820 memory map
121 */
122
123 // A pointer to the number of E820 entries there are.
124 const Addr e820MapNrPointer = realModeData + 0x1e8;
125
126 // A pointer to the buffer for E820 entries.
127 const Addr e820MapPointer = realModeData + 0x2d0;
128
129 e820Table->writeTo(physPort, e820MapNrPointer, e820MapPointer);
130
131 /*
132 * Pass the location of the real mode data structure to the kernel
133 * using register %esi. We'll use %rsi which should be equivalent.
134 */
135 threadContexts[0]->setIntReg(INTREG_RSI, realModeData);
136}
137
138LinuxX86System *
139LinuxX86SystemParams::create()
140{
141 return new LinuxX86System(this);
142}
| 49
50
51using namespace LittleEndianGuest;
52using namespace X86ISA;
53
54LinuxX86System::LinuxX86System(Params *p)
55 : X86System(p), commandLine(p->boot_osflags), e820Table(p->e820_table)
56{
57}
58
59LinuxX86System::~LinuxX86System()
60{
61}
62
63void
64LinuxX86System::initState()
65{
66 X86System::initState();
67
68 // The location of the real mode data structure.
69 const Addr realModeData = 0x90200;
70
71 // A port to write to memory.
72 FunctionalPort * physPort = threadContexts[0]->getPhysPort();
73
74 /*
75 * Deal with the command line stuff.
76 */
77
78 // A buffer to store the command line.
79 const Addr commandLineBuff = 0x90000;
80 // A pointer to the commandLineBuff stored in the real mode data.
81 const Addr commandLinePointer = realModeData + 0x228;
82
83 if (commandLine.length() + 1 > realModeData - commandLineBuff)
84 panic("Command line \"%s\" is longer than %d characters.\n",
85 commandLine, realModeData - commandLineBuff - 1);
86 physPort->writeBlob(commandLineBuff,
87 (uint8_t *)commandLine.c_str(), commandLine.length() + 1);
88
89 // Generate a pointer of the right size and endianness to put into
90 // commandLinePointer.
91 uint32_t guestCommandLineBuff =
92 X86ISA::htog((uint32_t)commandLineBuff);
93 physPort->writeBlob(commandLinePointer,
94 (uint8_t *)&guestCommandLineBuff, sizeof(guestCommandLineBuff));
95
96 /*
97 * Screen Info.
98 */
99
100 // We'll skip on this for now because it's only needed for framebuffers,
101 // something we don't support at the moment.
102
103 /*
104 * EDID info
105 */
106
107 // Skipping for now.
108
109 /*
110 * Saved video mode
111 */
112
113 // Skipping for now.
114
115 /*
116 * Loader type.
117 */
118
119 // Skipping for now.
120
121 /*
122 * E820 memory map
123 */
124
125 // A pointer to the number of E820 entries there are.
126 const Addr e820MapNrPointer = realModeData + 0x1e8;
127
128 // A pointer to the buffer for E820 entries.
129 const Addr e820MapPointer = realModeData + 0x2d0;
130
131 e820Table->writeTo(physPort, e820MapNrPointer, e820MapPointer);
132
133 /*
134 * Pass the location of the real mode data structure to the kernel
135 * using register %esi. We'll use %rsi which should be equivalent.
136 */
137 threadContexts[0]->setIntReg(INTREG_RSI, realModeData);
138}
139
140LinuxX86System *
141LinuxX86SystemParams::create()
142{
143 return new LinuxX86System(this);
144}
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